426728c8ce
* Taken from 5.15.74 Signed-off-by: chandu078 <chandudyavanapelli03@gmail.com> Signed-off-by: chrisl7 <wandersonrodriguesf1@gmail.com> Change-Id: I8b22703b0f1c05d515cb14268fd131adb40be8e8
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
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/*
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* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef _MSM_ETH_H_
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#define _MSM_ETH_H_
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#include <linux/types.h>
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/**
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* defines eth_meta_event - Events for eth
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*
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* CV2X pipe connect: CV2X pipe connected
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* CV2X pipe disconnect: CV2X pipe disconnected
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*/
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#define ETH_EVT_START 0
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#define ETH_EVT_CV2X_PIPE_CONNECTED (ETH_EVT_START + 1)
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#define ETH_EVT_CV2X_PIPE_DISCONNECTED (ETH_EVT_CV2X_PIPE_CONNECTED + 1)
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#define ETH_EVT_CV2X_MODE_NOT_ENABLED (ETH_EVT_CV2X_PIPE_DISCONNECTED + 1)
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/**
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* struct eth_msg_meta - Format of the message meta-data.
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* @msg_type: the type of the message
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* @rsvd: reserved bits for future use.
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* @msg_len: the length of the message in bytes
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*
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* For push model:
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* Client in user-space should issue a read on the device (/dev/emac) with a
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* sufficiently large buffer in a continuous loop, call will block when there is
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* no message to read. Upon return, client can read the eth_msg_meta from start
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* of buffer to find out type and length of message
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* size of buffer supplied >= (size of largest message + size of metadata)
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*
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*/
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struct eth_msg_meta {
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__u8 msg_type;
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__u8 rsvd;
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__u16 msg_len;
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};
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#endif /* _MSM_ETH_H_ */
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