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soc: qcom: qrtr: APIs for ethernet transport

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Provide APIs to be used by the ethernet transport/adaption layer to
interface with qrtr-ethernet driver. Ethernet transport/adaption layer
will use these APIs to:
  1. Let qrtr-ethernet know when the ethernet link is up/down so that
     endpoint registration/deregistration is done as needed.
  2. Provide a function pointer for qrtr-ethernet module to transmit
     data to the ethernet adaption layer.

Change-Id: Ifd1a07aef2fc5cd906128d2bed68574a2ab4c29b
Signed-off-by: Jay Jayanna <jayanna@codeaurora.org>
tirimbino
Jay Jayanna 5 years ago
parent 62214f5640
commit 9ab141145e
1 changed files with 51 additions and 0 deletions
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  1. 51
      include/soc/qcom/qrtr_ethernet.h

51
include/soc/qcom/qrtr_ethernet.h
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/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* QRTR-Ethernet API header
*/
#ifndef _QRTR_ETHERNET_H
#define _QRTR_ETHERNET_H
#include <linux/skbuff.h>
/**
* qrtr_ethernet_cb_info - struct to pass transport layer information to qrtr
* @eth_send: function pointer to send qrtr packets to transport layer
*/
struct qrtr_ethernet_cb_info {
int (*eth_send)(struct sk_buff *skb);
};
/**
* eth_adapt_result - struct to pass on buffer from external ap to qrtr
* buf_addr - address of the buffer that holds the data from external ap
* bytes_xferd - size of the above buffer
*/
struct eth_adapt_result {
void *buf_addr;
size_t bytes_xferd;
};
#if IS_ENABLED(CONFIG_QRTR_ETHERNET) || IS_ENABLED(CONFIG_QTI_QRTR_ETHERNET)
void qcom_ethernet_init_cb(struct qrtr_ethernet_cb_info *cbinfo);
void qcom_ethernet_qrtr_dl_cb(struct eth_adapt_result *eth_res);
void qcom_ethernet_qrtr_status_cb(unsigned int event);
#else
static inline void qcom_ethernet_init_cb(struct qrtr_ethernet_cb_info *cbinfo)
{
}
static inline void qcom_ethernet_qrtr_dl_cb(struct eth_adapt_result *eth_res) {}
static inline void qcom_ethernet_qrtr_status_cb(unsigned int event) {}
#endif /* CONFIG_QRTR_ETHERNET or CONFIG_QTI_QRTR_ETHERNET */
#endif /* _QRTR_ETHERNET_H */
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