mirror of
https://gitlab.com/etherlab.org/ethercat.git
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powertree
c4608c8ce0
Building EtherCAT master debug ring on Linux v6.6 Phytium kernel failed with: - incomplete type 'struct timeval' - struct timespec64 has no tv_usec member - implicit function declaration do_gettimeofday Linux 5.6 upstream deprecated timeval/do_gettimeofday and migrated fully to timespec64. Conditional compile based on LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0): - Header: include linux/version.h in device.h for version judgment - Data structure: ec_debug_frame_t / ec_device use timespec64 for new kernel, timeval for legacy - Time subtraction: custom timerspec64_sub to replace timersub on new kernel - Timestamp fetch: ktime_get_real_ts64 (5.6+), do_gettimeofday (legacy) - Member initialization: tv_nsec / tv_usec assigned conditionally - Log printing: divide tv_nsec by 1000 to restore us display, unified log format Signed-off-by: powertree <powertree@163.com>
160 lines
5.3 KiB
C
160 lines
5.3 KiB
C
/*****************************************************************************
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*
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* Copyright (C) 2006-2008 Florian Pose, Ingenieurgemeinschaft IgH
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*
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* This file is part of the IgH EtherCAT Master.
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*
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* The IgH EtherCAT Master is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2, as
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* published by the Free Software Foundation.
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*
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* The IgH EtherCAT Master is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the IgH EtherCAT Master; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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****************************************************************************/
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/**
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\file
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EtherCAT device structure.
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*/
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/****************************************************************************/
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#ifndef __EC_DEVICE_H__
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#define __EC_DEVICE_H__
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#include <linux/interrupt.h>
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#include "../devices/ecdev.h"
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#include "globals.h"
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/**
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* Size of the transmit ring.
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* This memory ring is used to transmit frames. It is necessary to use
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* different memory regions, because otherwise the network device DMA could
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* send the same data twice, if it is called twice.
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*/
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#define EC_TX_RING_SIZE 2
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#ifdef EC_DEBUG_IF
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#include "debug.h"
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#endif
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#ifdef EC_DEBUG_RING
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#include <linux/version.h>
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#define EC_DEBUG_RING_SIZE 10
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typedef enum {
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TX, RX
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} ec_debug_frame_dir_t;
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typedef struct {
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ec_debug_frame_dir_t dir;
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
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struct timespec64 t;
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#else
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struct timeval t;
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#endif
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uint8_t data[EC_MAX_DATA_SIZE];
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unsigned int data_size;
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} ec_debug_frame_t;
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#endif
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/****************************************************************************/
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/**
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EtherCAT device.
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An EtherCAT device is a network interface card, that is owned by an
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EtherCAT master to send and receive EtherCAT frames with.
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*/
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struct ec_device
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{
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ec_master_t *master; /**< EtherCAT master */
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struct net_device *dev; /**< pointer to the assigned net_device */
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ec_pollfunc_t poll; /**< pointer to the device's poll function */
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struct module *module; /**< pointer to the device's owning module */
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uint8_t open; /**< true, if the net_device has been opened */
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uint8_t link_state; /**< device link state */
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struct sk_buff *tx_skb[EC_TX_RING_SIZE]; /**< transmit skb ring */
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unsigned int tx_ring_index; /**< last ring entry used to transmit */
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#ifdef EC_HAVE_CYCLES
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cycles_t cycles_poll; /**< cycles of last poll */
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#endif
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#ifdef EC_DEBUG_RING
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 6, 0)
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struct timespec64 timeval_poll;
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#else
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struct timeval timeval_poll;
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#endif
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#endif
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unsigned long jiffies_poll; /**< jiffies of last poll */
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// Frame statistics
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u64 tx_count; /**< Number of frames sent. */
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u64 last_tx_count; /**< Number of frames sent of last statistics cycle. */
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u64 rx_count; /**< Number of frames received. */
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u64 last_rx_count; /**< Number of frames received of last statistics
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cycle. */
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u64 tx_bytes; /**< Number of bytes sent. */
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u64 last_tx_bytes; /**< Number of bytes sent of last statistics cycle. */
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u64 rx_bytes; /**< Number of bytes received. */
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u64 last_rx_bytes; /**< Number of bytes received of last statistics cycle.
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*/
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u64 tx_errors; /**< Number of transmit errors. */
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s32 tx_frame_rates[EC_RATE_COUNT]; /**< Transmit rates in frames/s for
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different statistics cycle periods.
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*/
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s32 rx_frame_rates[EC_RATE_COUNT]; /**< Receive rates in frames/s for
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different statistics cycle periods.
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*/
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s32 tx_byte_rates[EC_RATE_COUNT]; /**< Transmit rates in byte/s for
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different statistics cycle periods. */
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s32 rx_byte_rates[EC_RATE_COUNT]; /**< Receive rates in byte/s for
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different statistics cycle periods. */
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#ifdef EC_DEBUG_IF
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ec_debug_t dbg; /**< debug device */
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#endif
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#ifdef EC_DEBUG_RING
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ec_debug_frame_t debug_frames[EC_DEBUG_RING_SIZE];
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unsigned int debug_frame_index;
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unsigned int debug_frame_count;
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#endif
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};
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/****************************************************************************/
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int ec_device_init(ec_device_t *, ec_master_t *);
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void ec_device_clear(ec_device_t *);
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void ec_device_attach(ec_device_t *, struct net_device *, ec_pollfunc_t,
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struct module *);
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void ec_device_detach(ec_device_t *);
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int ec_device_open(ec_device_t *);
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int ec_device_close(ec_device_t *);
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void ec_device_poll(ec_device_t *);
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uint8_t *ec_device_tx_data(ec_device_t *);
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void ec_device_send(ec_device_t *, size_t);
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void ec_device_clear_stats(ec_device_t *);
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void ec_device_update_stats(ec_device_t *);
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#ifdef EC_DEBUG_RING
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void ec_device_debug_ring_append(ec_device_t *, ec_debug_frame_dir_t,
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const void *, size_t);
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void ec_device_debug_ring_print(const ec_device_t *);
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#endif
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/****************************************************************************/
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#endif
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