linux/include/net/caif/caif_device.h
Thomas Gleixner af873fcece treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
Based on 1 normalized pattern(s):

  license terms gnu general public license gpl version 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 161 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170027.447718015@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:29:22 -07:00

56 lines
1.8 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) ST-Ericsson AB 2010
* Author: Sjur Brendeland
*/
#ifndef CAIF_DEVICE_H_
#define CAIF_DEVICE_H_
#include <linux/kernel.h>
#include <linux/net.h>
#include <linux/netdevice.h>
#include <linux/caif/caif_socket.h>
#include <net/caif/caif_device.h>
/**
* struct caif_dev_common - data shared between CAIF drivers and stack.
* @flowctrl: Flow Control callback function. This function is
* supplied by CAIF Core Stack and is used by CAIF
* Link Layer to send flow-stop to CAIF Core.
* The flow information will be distributed to all
* clients of CAIF.
*
* @link_select: Profile of device, either high-bandwidth or
* low-latency. This member is set by CAIF Link
* Layer Device in order to indicate if this device
* is a high bandwidth or low latency device.
*
* @use_frag: CAIF Frames may be fragmented.
* Is set by CAIF Link Layer in order to indicate if the
* interface receives fragmented frames that must be
* assembled by CAIF Core Layer.
*
* @use_fcs: Indicate if Frame CheckSum (fcs) is used.
* Is set if the physical interface is
* using Frame Checksum on the CAIF Frames.
*
* @use_stx: Indicate STart of frame eXtension (stx) in use.
* Is set if the CAIF Link Layer expects
* CAIF Frames to start with the STX byte.
*
* This structure is shared between the CAIF drivers and the CAIF stack.
* It is used by the device to register its behavior.
* CAIF Core layer must set the member flowctrl in order to supply
* CAIF Link Layer with the flow control function.
*
*/
struct caif_dev_common {
void (*flowctrl)(struct net_device *net, int on);
enum caif_link_selector link_select;
int use_frag;
int use_fcs;
int use_stx;
};
#endif /* CAIF_DEVICE_H_ */