etherlabmaster: master/ethernet.c@dcfd406e7786 (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
216 e7f3e485c5b8 EoE: Corrected faulty MAC address. Florian Pose <fp@igh-essen.com> parents: 215 diff changeset	40	#define EOE_DEBUG_LEVEL 0
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	41
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	42	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	43
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	44	void ec_eoe_flush(ec_eoe_t *);
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	45	void ec_eoedev_init(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	46	int ec_eoedev_open(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	47	int ec_eoedev_stop(struct net_device *);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	48	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	49	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	50	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	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	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	55	EoE constructor.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	56	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	57
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	58	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	59	{
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	60	ec_eoe_t **priv;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	61	int result;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	62
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	63	eoe->slave = slave;
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	64	eoe->state = EC_EOE_RX_START;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	65	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	66	eoe->skb = NULL;
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	67	eoe->expected_fragment = 0;
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	68	INIT_LIST_HEAD(&eoe->tx_queue);
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	69	eoe->tx_queue_active = 0;
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	70	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	71	eoe->tx_queue_lock = SPIN_LOCK_UNLOCKED;
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	72	eoe->tx_frame_number = 0xFF;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	73	memset(&eoe->stats, 0, sizeof(struct net_device_stats));
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	74
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	75	if (!(eoe->dev =
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	76	alloc_netdev(sizeof(ec_eoe_t *), "eoe%d", ec_eoedev_init))) {
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	77	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	78	goto out_return;
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
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	81	// set EoE object reference
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	82	priv = netdev_priv(eoe->dev);
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	83	*priv = eoe;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	84
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	85	eoe->dev->mtu = slave->sii_rx_mailbox_size - ETH_HLEN - 10;
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	86
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	87	// connect the net_device to the kernel
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	88	if ((result = register_netdev(eoe->dev))) {
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	89	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	90	goto out_free;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	91	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	92
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	93	return 0;
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	out_free:
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	96	free_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	97	eoe->dev = NULL;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	98	out_return:
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	99	return -1;
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	100	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	101
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	102	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	103
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	104	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	105	EoE destructor.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	106	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	107
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	108	void ec_eoe_clear(ec_eoe_t *eoe)
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	109	{
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	110	if (eoe->dev) {
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	111	unregister_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	112	free_netdev(eoe->dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	113	}
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	114
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	115	// empty transmit queue
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	116	ec_eoe_flush(eoe);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	117	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	118
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	119	/*****************************************************************************/
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	120
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	121	/**
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	122	Empties the transmit queue.
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	123	*/
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	124
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	125	void ec_eoe_flush(ec_eoe_t *eoe)
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	126	{
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	127	ec_eoe_frame_t frame, next;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	128
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	129	spin_lock_bh(&eoe->tx_queue_lock);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	130
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	131	list_for_each_entry_safe(frame, next, &eoe->tx_queue, queue) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	132	list_del(&frame->queue);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	133	dev_kfree_skb(frame->skb);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	134	kfree(frame);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	135	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	136	eoe->queued_frames = 0;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	137
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	138	spin_unlock_bh(&eoe->tx_queue_lock);
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	139	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	140
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	141	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	142
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	143	/**
217 dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	144	Sends a frame or the next fragment.
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	145	*/
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	146
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	147	int ec_eoe_send(ec_eoe_t *eoe)
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	148	{
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	149	ec_eoe_frame_t *frame = eoe->tx_frame;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	150	size_t remaining_size, current_size, complete_offset;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	151	unsigned int last_fragment;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	152	uint8_t *data;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	153	#if EOE_DEBUG_LEVEL > 1
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	154	unsigned int i;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	155	#endif
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	156
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	157	remaining_size = frame->skb->len - eoe->tx_offset;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	158
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	159	if (remaining_size <= eoe->slave->sii_tx_mailbox_size - 10) {
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	160	current_size = remaining_size;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	161	last_fragment = 1;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	162	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	163	else {
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	164	current_size = ((eoe->slave->sii_tx_mailbox_size - 10) / 32) * 32;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	165	last_fragment = 0;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	166	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	167
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	168	if (eoe->tx_fragment_number) {
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	169	complete_offset = eoe->tx_offset / 32;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	170	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	171	else {
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	172	complete_offset = remaining_size / 32 + 1;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	173	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	174
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	175	#if EOE_DEBUG_LEVEL > 0
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	176	EC_DBG("EoE TX sending %sfragment %i with %i octets (%i)."
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	177	" %i frames queued.\n", last_fragment ? "last " : "",
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	178	eoe->tx_fragment_number, current_size, complete_offset,
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	179	eoe->queued_frames);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	180	#endif
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	181
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	182	#if EOE_DEBUG_LEVEL > 1
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	183	EC_DBG("");
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	184	for (i = 0; i < current_size; i++) {
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	185	printk("%02X ", frame->skb->data[eoe->tx_offset + i]);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	186	if ((i + 1) % 16 == 0) {
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	187	printk("\n");
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	188	EC_DBG("");
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	189	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	190	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	191	printk("\n");
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	192	#endif
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	193
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	194	if (!(data = ec_slave_mbox_prepare_send(eoe->slave, 0x02,
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	195	current_size + 4)))
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	196	return -1;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	197
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	198	EC_WRITE_U8 (data, 0x00); // eoe fragment req.
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	199	EC_WRITE_U8 (data + 1, last_fragment);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	200	EC_WRITE_U16(data + 2, ((eoe->tx_fragment_number & 0x3F) \|
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	201	(complete_offset & 0x3F) << 6 \|
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	202	(eoe->tx_frame_number & 0x0F) << 12));
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	203
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	204	memcpy(data + 4, frame->skb->data + eoe->tx_offset, current_size);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	205	ec_master_queue_command(eoe->slave->master, &eoe->slave->mbox_command);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	206
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	207	eoe->tx_offset += current_size;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	208	eoe->tx_fragment_number++;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	209
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	210	return 0;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	211	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	212
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	213	/*****************************************************************************/
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	214
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	215	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	216	Runs the EoE state machine.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	217	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	218
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	219	void ec_eoe_run(ec_eoe_t *eoe)
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	220	{
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	221	uint8_t *data;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	222	ec_master_t *master;
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	223	size_t rec_size, data_size;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	224	off_t offset;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	225	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	226	uint8_t fragment_offset, frame_type;
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	227	ec_eoe_frame_t *frame;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	228	unsigned int wakeup = 0;
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	229	#if EOE_DEBUG_LEVEL > 1
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	230	unsigned int i;
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	231	#endif
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	232
1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	233	if (!eoe->opened) return;
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	234
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	235	master = eoe->slave->master;
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	236
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	237	switch (eoe->state) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	238	case EC_EOE_RX_START:
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	239	ec_slave_mbox_prepare_check(eoe->slave);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	240	ec_master_queue_command(master, &eoe->slave->mbox_command);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	241	eoe->state = EC_EOE_RX_CHECK;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	242	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	243
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	244	case EC_EOE_RX_CHECK:
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	245	if (eoe->slave->mbox_command.state != EC_CMD_RECEIVED) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	246	eoe->stats.rx_errors++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	247	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	248	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	249	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	250	if (!ec_slave_mbox_check(eoe->slave)) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	251	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	252	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	253	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	254	ec_slave_mbox_prepare_fetch(eoe->slave);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	255	ec_master_queue_command(master, &eoe->slave->mbox_command);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	256	eoe->state = EC_EOE_RX_FETCH;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	257	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	258
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	259	case EC_EOE_RX_FETCH:
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	260	if (eoe->slave->mbox_command.state != EC_CMD_RECEIVED) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	261	eoe->stats.rx_errors++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	262	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	263	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	264	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	265	if (!(data = ec_slave_mbox_fetch(eoe->slave, 0x02, &rec_size))) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	266	eoe->stats.rx_errors++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	267	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	268	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	269	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	270
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	271	frame_type = EC_READ_U16(data) & 0x000F;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	272
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	273	if (frame_type == 0x00) { // EoE Fragment Request
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	274	last_fragment = (EC_READ_U16(data) >> 8) & 0x0001;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	275	time_appended = (EC_READ_U16(data) >> 9) & 0x0001;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	276	fragment_number = EC_READ_U16(data + 2) & 0x003F;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	277	fragment_offset = (EC_READ_U16(data + 2) >> 6) & 0x003F;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	278	frame_number = (EC_READ_U16(data + 2) >> 12) & 0x000F;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	279
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	280	#if EOE_DEBUG_LEVEL > 0
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	281	EC_DBG("EoE RX fragment %i, offset %i, frame %i%s%s,"
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	282	" %i octets\n", fragment_number, fragment_offset,
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	283	frame_number,
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	284	last_fragment ? ", last fragment" : "",
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	285	time_appended ? ", + timestamp" : "",
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	286	time_appended ? rec_size - 8 : rec_size - 4);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	287
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	288	#if EOE_DEBUG_LEVEL > 1
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	289	EC_DBG("");
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	290	for (i = 0; i < rec_size - 4; i++) {
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	291	printk("%02X ", data[i + 4]);
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	292	if ((i + 1) % 16 == 0) {
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	293	printk("\n");
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	294	EC_DBG("");
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	295	}
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	296	}
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	297	printk("\n");
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	298	#endif
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	299	#endif
b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	300
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	301	data_size = time_appended ? rec_size - 8 : rec_size - 4;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	302
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	303	if (!fragment_number) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	304	if (eoe->skb) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	305	EC_WARN("EoE RX freeing old socket buffer...\n");
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	306	dev_kfree_skb(eoe->skb);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	307	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	308
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	309	// new socket buffer
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	310	if (!(eoe->skb = dev_alloc_skb(fragment_offset * 32))) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	311	if (printk_ratelimit())
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	312	EC_WARN("EoE RX low on mem. frame dropped.\n");
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	313	eoe->stats.rx_dropped++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	314	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	315	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	316	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	317	eoe->skb_offset = 0;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	318	eoe->skb_size = fragment_offset * 32;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	319	eoe->expected_fragment = 0;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	320	}
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	321	else {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	322	if (!eoe->skb) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	323	eoe->stats.rx_dropped++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	324	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	325	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	326	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	327
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	328	offset = fragment_offset * 32;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	329	if (offset != eoe->skb_offset \|\|
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	330	offset + data_size > eoe->skb_size \|\|
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	331	fragment_number != eoe->expected_fragment) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	332	eoe->stats.rx_errors++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	333	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	334	dev_kfree_skb(eoe->skb);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	335	eoe->skb = NULL;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	336	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	337	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	338	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	339
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	340	// copy fragment into socket buffer
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	341	memcpy(skb_put(eoe->skb, data_size), data + 4, data_size);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	342	eoe->skb_offset += data_size;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	343
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	344	if (last_fragment) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	345	// update statistics
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	346	eoe->stats.rx_packets++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	347	eoe->stats.rx_bytes += eoe->skb->len;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	348
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	349	#if EOE_DEBUG_LEVEL > 0
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	350	EC_DBG("EoE RX frame completed with %u octets.\n",
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	351	eoe->skb->len);
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	352	#endif
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	353
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	354	// pass socket buffer to network stack
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	355	eoe->skb->dev = eoe->dev;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	356	eoe->skb->protocol = eth_type_trans(eoe->skb, eoe->dev);
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	357	eoe->skb->ip_summed = CHECKSUM_UNNECESSARY;
216 e7f3e485c5b8 EoE: Corrected faulty MAC address. Florian Pose <fp@igh-essen.com> parents: 215 diff changeset	358	//eoe->skb->pkt_type = PACKET_HOST;
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	359	if (netif_rx(eoe->skb)) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	360	EC_WARN("EoE RX netif_rx failed.\n");
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	361	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	362	eoe->skb = NULL;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	363
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	364	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	365	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	366	else {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	367	eoe->expected_fragment++;
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	368	#if EOE_DEBUG_LEVEL > 0
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	369	EC_DBG("EoE RX expecting fragment %i\n",
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	370	eoe->expected_fragment);
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	371	#endif
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	372	eoe->state = EC_EOE_RX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	373	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	374	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	375	else {
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	376	#if EOE_DEBUG_LEVEL > 0
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	377	EC_DBG("other frame received.\n");
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	378	#endif
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	379	eoe->stats.rx_dropped++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	380	eoe->state = EC_EOE_TX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	381	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	382	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	383
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	384	case EC_EOE_TX_START:
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	385	spin_lock_bh(&eoe->tx_queue_lock);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	386
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	387	if (!eoe->queued_frames \|\| list_empty(&eoe->tx_queue)) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	388	spin_unlock_bh(&eoe->tx_queue_lock);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	389	eoe->state = EC_EOE_RX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	390	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	391	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	392
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	393	// take the first frame out of the queue
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	394	frame = list_entry(eoe->tx_queue.next, ec_eoe_frame_t, queue);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	395	list_del(&frame->queue);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	396	if (!eoe->tx_queue_active &&
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	397	eoe->queued_frames == EC_EOE_TX_QUEUE_SIZE / 2) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	398	netif_wake_queue(eoe->dev);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	399	eoe->tx_queue_active = 1;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	400	wakeup = 1;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	401	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	402	eoe->queued_frames--;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	403	spin_unlock_bh(&eoe->tx_queue_lock);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	404
217 dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	405	eoe->tx_frame_number++;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	406	eoe->tx_frame_number %= 16;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	407	eoe->tx_frame = frame;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	408	eoe->tx_fragment_number = 0;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	409	eoe->tx_offset = 0;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	410
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	411	if (ec_eoe_send(eoe)) {
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	412	dev_kfree_skb(frame->skb);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	413	kfree(frame);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	414	eoe->stats.tx_errors++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	415	eoe->state = EC_EOE_RX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	416	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	417	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	418
217 dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	419	#if EOE_DEBUG_LEVEL > 0
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	420	if (wakeup) EC_DBG("waking up TX queue...\n");
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	421	#endif
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	422
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	423	eoe->state = EC_EOE_TX_SENT;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	424	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	425
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	426	case EC_EOE_TX_SENT:
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	427	if (eoe->slave->mbox_command.state != EC_CMD_RECEIVED) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	428	eoe->stats.tx_errors++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	429	eoe->state = EC_EOE_RX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	430	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	431	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	432	if (eoe->slave->mbox_command.working_counter != 1) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	433	eoe->stats.tx_errors++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	434	eoe->state = EC_EOE_RX_START;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	435	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	436	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	437
217 dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	438	// frame completely sent
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	439	if (eoe->tx_offset >= eoe->tx_frame->skb->len) {
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	440	eoe->stats.tx_packets++;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	441	eoe->stats.tx_bytes += eoe->tx_frame->skb->len;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	442	dev_kfree_skb(eoe->tx_frame->skb);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	443	kfree(eoe->tx_frame);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	444	eoe->state = EC_EOE_RX_START;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	445	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	446	else { // send next fragment
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	447	if (ec_eoe_send(eoe)) {
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	448	dev_kfree_skb(eoe->tx_frame->skb);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	449	kfree(eoe->tx_frame);
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	450	eoe->stats.tx_errors++;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	451	eoe->state = EC_EOE_RX_START;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	452	break;
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	453	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	454	}
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	455
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	456	break;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	457
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	458	default:
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	459	break;
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	460	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	461	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	462
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	463	/*****************************************************************************/
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	464
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	465	/**
199 04ecf40fc2e9 Doxygen added interface modules and file documentation. Florian Pose <fp@igh-essen.com> parents: 197 diff changeset	466	Prints EoE object information.
197 b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	467	*/
b9a6e2c22745 GPLv2 License and enhanced Doxygen output. Florian Pose <fp@igh-essen.com> parents: 195 diff changeset	468
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	469	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	470	{
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	471	EC_INFO(" EoE slave %i\n", eoe->slave->ring_position);
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	472	EC_INFO(" State %i\n", eoe->state);
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	473	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	474	eoe->opened ? "opened" : "closed");
145 11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	475	}
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	476
11a82e4fd31b Mailbox-Interface ausgelagert, erster EOE-Ansatz. Florian Pose <fp@igh-essen.com> parents: diff changeset	477	/*****************************************************************************/
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	478
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	479	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	480	Initializes a net_device structure for an EoE object.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	481	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	482
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	483	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	484	{
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	485	ec_eoe_t *priv;
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	486	unsigned int i;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	487
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	488	// initialize net_device
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	489	ether_setup(dev);
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	490	dev->open = ec_eoedev_open;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	491	dev->stop = ec_eoedev_stop;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	492	dev->hard_start_xmit = ec_eoedev_tx;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	493	dev->get_stats = ec_eoedev_stats;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	494
216 e7f3e485c5b8 EoE: Corrected faulty MAC address. Florian Pose <fp@igh-essen.com> parents: 215 diff changeset	495	for (i = 0; i < ETH_ALEN; i++)
e7f3e485c5b8 EoE: Corrected faulty MAC address. Florian Pose <fp@igh-essen.com> parents: 215 diff changeset	496	dev->dev_addr[i] = i \| (i << 4);
210 1cc6bcb1e6ae EoE frame receiving; regarding open/stop commands. Florian Pose <fp@igh-essen.com> parents: 208 diff changeset	497
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	498	// initialize private data
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	499	priv = netdev_priv(dev);
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	500	memset(priv, 0, sizeof(ec_eoe_t *));
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	501	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	502
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	503	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	504
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	505	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	506	Opens the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	507	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	508
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	509	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	510	{
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	511	ec_eoe_t eoe = ((ec_eoe_t **) netdev_priv(dev));
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	512	ec_eoe_flush(eoe);
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	513	eoe->opened = 1;
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	514	netif_start_queue(dev);
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	515	eoe->tx_queue_active = 1;
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	516	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	517	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	518	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	519
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	520	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	521
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	522	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	523	Stops the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	524	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	525
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	526	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	527	{
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	528	ec_eoe_t eoe = ((ec_eoe_t **) netdev_priv(dev));
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	529	netif_stop_queue(dev);
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	530	eoe->tx_queue_active = 0;
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	531	eoe->opened = 0;
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	532	ec_eoe_flush(eoe);
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	533	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	534	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	535	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	536
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	537	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	538
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	539	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	540	Transmits data via the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	541	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	542
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	543	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	544	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	545	)
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	546	{
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	547	ec_eoe_t eoe = ((ec_eoe_t **) netdev_priv(dev));
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	548	ec_eoe_frame_t *frame;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	549
217 dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	550	#if 0
dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	551	if (skb->len > eoe->slave->sii_tx_mailbox_size - 10) {
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	552	EC_WARN("EoE TX frame (%i octets) exceeds MTU. dropping.\n", skb->len);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	553	dev_kfree_skb(skb);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	554	eoe->stats.tx_dropped++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	555	return 0;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	556	}
217 dcfd406e7786 EoE - TX fragmenting works. TCP traffic possible. Florian Pose <fp@igh-essen.com> parents: 216 diff changeset	557	#endif
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	558
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	559	if (!(frame =
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	560	(ec_eoe_frame_t *) kmalloc(sizeof(ec_eoe_frame_t), GFP_ATOMIC))) {
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	561	if (printk_ratelimit())
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	562	EC_WARN("EoE TX: low on mem. frame dropped.\n");
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	563	return 1;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	564	}
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	565
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	566	frame->skb = skb;
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	567
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	568	spin_lock_bh(&eoe->tx_queue_lock);
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	569	list_add_tail(&frame->queue, &eoe->tx_queue);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	570	eoe->queued_frames++;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	571	if (eoe->queued_frames == EC_EOE_TX_QUEUE_SIZE) {
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	572	netif_stop_queue(dev);
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	573	eoe->tx_queue_active = 0;
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	574	}
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	575	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	576
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	577	#if EOE_DEBUG_LEVEL > 0
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	578	EC_DBG("EoE TX queued frame with %i octets (%i frames queued).\n",
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	579	skb->len, eoe->queued_frames);
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	580	if (!eoe->tx_queue_active)
8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	581	EC_WARN("EoE TX queue is now full.\n");
215 b021aa6eee38 EoE: TCP traffic possible; TX fragmenting to do. Florian Pose <fp@igh-essen.com> parents: 214 diff changeset	582	#endif
214 8beb86af5ed0 EoE frame queuing, receiving of fragmented frames; no TCP possible yet. Florian Pose <fp@igh-essen.com> parents: 213 diff changeset	583
203 c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	584	return 0;
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	585	}
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	586
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	587	/*****************************************************************************/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	588
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	589	/**
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	590	Gets statistics about the virtual network device.
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	591	*/
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	592
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	593	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	594	/*< EoE net_device /)
c1f305e339c6 EoE net_device implementation. Florian Pose <fp@igh-essen.com> parents: 199 diff changeset	595	{
213 8d723b9833a9 removed unnecessary private structure in eoe net_device. Florian Pose <fp@igh-essen.com> parents: 212 diff changeset	596	ec_eoe_t eoe = ((ec_eoe_t **) netdev_priv(dev));
212 82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	597	return &eoe->stats;
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	598	}
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	599
82980deb8b00 moved stats into eoe struct; persistent rx-skb; tx queue. Florian Pose <fp@igh-essen.com> parents: 210 diff changeset	600	/*****************************************************************************/

author	Florian Pose <fp@igh-essen.com>
	Mon, 08 May 2006 16:46:43 +0000
changeset 217	dcfd406e7786
parent 216	e7f3e485c5b8
child 218	80fb87518f3d
permissions	-rw-r--r--