etherlabmaster: master/ethernet.c@82980deb8b00 (annotated)

145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	1	/******************************************************************************
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	2	*
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	3	* $Id$
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	4	*
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	5	* Copyright (C) 2006 Florian Pose, Ingenieurgemeinschaft IgH
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	6	*
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	7	* This file is part of the IgH EtherCAT Master.
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	8	*
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	9	* The IgH EtherCAT Master is free software; you can redistribute it
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	10	* and/or modify it under the terms of the GNU General Public License
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	11	* as published by the Free Software Foundation; version 2 of the License.
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	12	*
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	13	* The IgH EtherCAT Master is distributed in the hope that it will be
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	14	* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	16	* GNU General Public License for more details.
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	17	*
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	18	* You should have received a copy of the GNU General Public License
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	19	* along with the IgH EtherCAT Master; if not, write to the Free Software
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	20	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	21	*
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	22	*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	23
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	24	/**
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	25	\file
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	26	Ethernet-over-EtherCAT (EoE).
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	27	*/
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	28
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	29	/*****************************************************************************/
04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	30
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	31	#include <linux/etherdevice.h>
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	32
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	33	#include "../include/ecrt.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	34	#include "globals.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	35	#include "master.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	36	#include "slave.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	37	#include "mailbox.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	38	#include "ethernet.h"
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	39
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	40	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	41
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	42	/**
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	43	Contains the private data of an EoE net_device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	44	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	45
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	46	typedef struct
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	47	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	48	ec_eoe_t eoe; /< pointer to parent eoe object /
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	49	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	50	ec_eoedev_priv_t;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	51
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	52	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	53
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	54	void ec_eoedev_init(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	55	int ec_eoedev_open(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	56	int ec_eoedev_stop(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	57	int ec_eoedev_tx(struct sk_buff , struct net_device );
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	58	struct net_device_stats ec_eoedev_stats(struct net_device );
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	59	void ec_eoedev_rx(struct net_device , const uint8_t , size_t);
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	60
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	61	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	62
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	63	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	64	EoE constructor.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	65	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	66
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	67	int ec_eoe_init(ec_eoe_t eoe, ec_slave_t slave)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	68	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	69	ec_eoedev_priv_t *priv;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	70	int result;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	71
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	72	eoe->slave = slave;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	73	eoe->rx_state = EC_EOE_IDLE;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	74	eoe->opened = 0;
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	75	eoe->skb = NULL;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	76	INIT_LIST_HEAD(&eoe->tx_queue);
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	77	eoe->queued_frames = 0;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	78	eoe->tx_queue_lock = SPIN_LOCK_UNLOCKED;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	79
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	80	if (!(eoe->dev =
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	81	alloc_netdev(sizeof(ec_eoedev_priv_t), "eoe%d", ec_eoedev_init))) {
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	82	EC_ERR("Unable to allocate net_device for EoE object!\n");
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	83	goto out_return;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	84	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	85
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	86	// set EoE object reference
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	87	priv = netdev_priv(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	88	priv->eoe = eoe;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	89
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	90	// connect the net_device to the kernel
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	91	if ((result = register_netdev(eoe->dev))) {
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	92	EC_ERR("Unable to register net_device: error %i\n", result);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	93	goto out_free;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	94	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	95
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	96	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	97
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	98	out_free:
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	99	free_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	100	eoe->dev = NULL;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	101	out_return:
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	102	return -1;
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	103	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	104
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	105	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	106
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	107	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	108	EoE destructor.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	109	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	110
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	111	void ec_eoe_clear(ec_eoe_t *eoe)
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	112	{
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	113	if (eoe->dev) {
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	114	unregister_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	115	free_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	116	}
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	117	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	118
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	119	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	120
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	121	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	122	Runs the EoE state machine.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	123	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	124
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	125	void ec_eoe_run(ec_eoe_t *eoe)
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	126	{
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	127	uint8_t *data;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	128	ec_master_t *master;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	129	size_t rec_size;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	130	uint8_t fragment_number, frame_number, last_fragment, time_appended;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	131	uint8_t fragment_offset, frame_type;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	132
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	133	if (!eoe->opened) return;
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	134
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	135	master = eoe->slave->master;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	136
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	137	if (eoe->rx_state == EC_EOE_IDLE) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	138	ec_slave_mbox_prepare_check(eoe->slave);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	139	ec_master_queue_command(master, &eoe->slave->mbox_command);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	140	eoe->rx_state = EC_EOE_CHECKING;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	141	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	142	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	143
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	144	if (eoe->rx_state == EC_EOE_CHECKING) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	145	if (eoe->slave->mbox_command.state != EC_CMD_RECEIVED) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	146	master->stats.eoe_errors++;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	147	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	148	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	149	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	150	if (!ec_slave_mbox_check(eoe->slave)) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	151	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	152	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	153	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	154	ec_slave_mbox_prepare_fetch(eoe->slave);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	155	ec_master_queue_command(master, &eoe->slave->mbox_command);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	156	eoe->rx_state = EC_EOE_FETCHING;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	157	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	158	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	159
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	160	if (eoe->rx_state == EC_EOE_FETCHING) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	161	if (eoe->slave->mbox_command.state != EC_CMD_RECEIVED) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	162	master->stats.eoe_errors++;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	163	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	164	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	165	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	166	if (!(data = ec_slave_mbox_fetch(eoe->slave, 0x02, &rec_size))) {
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	167	master->stats.eoe_errors++;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	168	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	169	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	170	}
146 73a5f7dd3024 Versuche mit EoE. Florian Pose <fp@igh-essen.com> parents: 145 diff changeset	171
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	172	frame_type = EC_READ_U16(data) & 0x000F;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	173
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	174	if (frame_type == 0x00) { // EoE Fragment Request
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	175	last_fragment = (EC_READ_U16(data) >> 8) & 0x0001;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	176	time_appended = (EC_READ_U16(data) >> 9) & 0x0001;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	177	fragment_number = EC_READ_U16(data + 2) & 0x003F;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	178	fragment_offset = (EC_READ_U16(data + 2) >> 6) & 0x003F;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	179	frame_number = (EC_READ_U16(data + 2) >> 12) & 0x000F;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	180
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	181	#if 0
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	182	EC_DBG("EOE fragment req received, fragment: %i, offset: %i,"
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	183	" frame %i%s%s, %i bytes\n", fragment_number,
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	184	fragment_offset, frame_number,
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	185	last_fragment ? ", last fragment" : "",
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	186	time_appended ? ", + timestamp" : "",
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	187	time_appended ? rec_size - 8 : rec_size - 4);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	188
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	189	#if 0
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	190	EC_DBG("");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	191	for (i = 0; i < rec_size - 4; i++) {
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	192	printk("%02X ", data[i + 4]);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	193	if ((i + 1) % 16 == 0) {
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	194	printk("\n");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	195	EC_DBG("");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	196	}
146 73a5f7dd3024 Versuche mit EoE. Florian Pose <fp@igh-essen.com> parents: 145 diff changeset	197	}
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	198	printk("\n");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	199	#endif
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	200	#endif
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	201
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	202	ec_eoedev_rx(eoe->dev, data + 4,
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	203	time_appended ? rec_size - 8 : rec_size - 4);
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	204	}
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	205	else {
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	206	#if 1
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	207	EC_DBG("other frame received.\n");
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	208	#endif
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	209	}
146 73a5f7dd3024 Versuche mit EoE. Florian Pose <fp@igh-essen.com> parents: 145 diff changeset	210
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	211	eoe->rx_state = EC_EOE_IDLE;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	212	return;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	213	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	214	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	215
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	216	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	217
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	218	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	219	Prints EoE object information.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	220	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	221
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	222	void ec_eoe_print(const ec_eoe_t *eoe)
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	223	{
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	224	EC_INFO(" EoE slave %i\n", eoe->slave->ring_position);
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	225	EC_INFO(" RX State %i\n", eoe->rx_state);
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	226	EC_INFO(" Assigned device: %s (%s)\n", eoe->dev->name,
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	227	eoe->opened ? "opened" : "closed");
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	228	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	229
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	230	/*****************************************************************************/
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	231
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	232	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	233	Initializes a net_device structure for an EoE object.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	234	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	235
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	236	void ec_eoedev_init(struct net_device dev /< pointer to the net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	237	{
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	238	ec_eoedev_priv_t *priv;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	239	unsigned int i;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	240
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	241	// initialize net_device
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	242	ether_setup(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	243	dev->open = ec_eoedev_open;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	244	dev->stop = ec_eoedev_stop;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	245	dev->hard_start_xmit = ec_eoedev_tx;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	246	dev->get_stats = ec_eoedev_stats;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	247
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	248	for (i = 0; i < 6; i++) dev->dev_addr[i] = (i + 1) \| (i + 1) << 4;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	249
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	250	// initialize private data
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	251	priv = netdev_priv(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	252	memset(priv, 0, sizeof(ec_eoedev_priv_t));
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	253	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	254
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	255	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	256
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	257	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	258	Opens the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	259	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	260
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	261	int ec_eoedev_open(struct net_device dev /< EoE net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	262	{
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	263	ec_eoe_t eoe = ((ec_eoedev_priv_t ) netdev_priv(dev))->eoe;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	264	eoe->opened = 1;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	265	netif_start_queue(dev);
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	266	EC_INFO("%s (slave %i) opened.\n", dev->name, eoe->slave->ring_position);
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	267	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	268	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	269
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	270	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	271
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	272	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	273	Stops the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	274	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	275
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	276	int ec_eoedev_stop(struct net_device dev /< EoE net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	277	{
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	278	ec_eoe_t eoe = ((ec_eoedev_priv_t ) netdev_priv(dev))->eoe;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	279	netif_stop_queue(dev);
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	280	eoe->opened = 0;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	281	EC_INFO("%s (slave %i) stopped.\n", dev->name, eoe->slave->ring_position);
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	282	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	283	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	284
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	285	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	286
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	287	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	288	Transmits data via the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	289	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	290
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	291	int ec_eoedev_tx(struct sk_buff skb, /< transmit socket buffer /
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	292	struct net_device dev /< EoE net_device /
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	293	)
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	294	{
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	295	ec_eoe_t eoe = ((ec_eoedev_priv_t ) netdev_priv(dev))->eoe;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	296
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	297	spin_lock_bh(&eoe->tx_queue_lock);
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	298
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	299	#if 0
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	300	eoe->stats.tx_packets++;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	301	dev_kfree_skb(skb);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	302	EC_INFO("EoE device sent %i octets.\n", skb->len);
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	303	#endif
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	304
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	305	if (eoe->queued_frames == EC_EOE_TX_QUEUE_SIZE)
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	306	netif_stop_queue(dev);
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	307
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	308	spin_unlock_bh(&eoe->tx_queue_lock);
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	309
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	310	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	311	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	312
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	313	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	314
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	315	/**
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	316	Receives data from the bus and passes it to the network stack.
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	317	*/
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	318
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	319	void ec_eoedev_rx(struct net_device dev, /< EoE net_device /
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	320	const uint8_t data, /< pointer to the data /
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	321	size_t size /*< size of the received data /
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	322	)
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	323	{
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	324	ec_eoe_t eoe = ((ec_eoedev_priv_t ) netdev_priv(dev))->eoe;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	325
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	326	// allocate socket buffer
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	327	if (!(eoe->skb = dev_alloc_skb(size + 2))) {
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	328	if (printk_ratelimit())
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	329	EC_WARN("EoE RX: low on mem. frame dropped.\n");
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	330	eoe->stats.rx_dropped++;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	331	return;
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	332	}
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	333
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	334	// copy received data to socket buffer
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	335	memcpy(skb_put(eoe->skb, size), data, size);
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	336
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	337	// set socket buffer fields
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	338	eoe->skb->dev = dev;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	339	eoe->skb->protocol = eth_type_trans(eoe->skb, dev);
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	340	eoe->skb->ip_summed = CHECKSUM_UNNECESSARY;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	341
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	342	// update statistics
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	343	eoe->stats.rx_packets++;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	344	eoe->stats.rx_bytes += size;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	345
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	346	// pass socket buffer to network stack
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	347	netif_rx(eoe->skb);
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	348	eoe->skb = NULL;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	349	}
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	350
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	351	/*****************************************************************************/
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	352
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	353	/**
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	354	Gets statistics about the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	355	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	356
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	357	struct net_device_stats ec_eoedev_stats(struct net_device dev
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	358	/*< EoE net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	359	{
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	360	ec_eoe_t eoe = ((ec_eoedev_priv_t ) netdev_priv(dev))->eoe;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	361	return &eoe->stats;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	362	}
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	363
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	364	/*****************************************************************************/

author	Florian Pose <fp@igh-essen.com>
	Wed, 03 May 2006 07:47:04 +0000
changeset 212	82980deb8b00
parent 210	1cc6bcb1e6ae
child 213	8d723b9833a9
permissions	-rw-r--r--