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/*
* linux/can/rx-offload.h
*
* Copyright (c) 2014 David Jander, Protonic Holland
* Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde <kernel@pengutronix.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the version 2 of the GNU General Public License
* 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.
*/
#ifndef _CAN_RX_OFFLOAD_H
#define _CAN_RX_OFFLOAD_H
#include <linux/netdevice.h>
#include <linux/can.h>
struct can_rx_offload {
struct net_device *dev;
unsigned int (*mailbox_read)(struct can_rx_offload *offload, struct can_frame *cf,
u32 *timestamp, unsigned int mb);
struct sk_buff_head skb_queue;
u32 skb_queue_len_max;
unsigned int mb_first;
unsigned int mb_last;
struct napi_struct napi;
bool inc;
};
int can_rx_offload_add_timestamp(struct net_device *dev, struct can_rx_offload *offload);
int can_rx_offload_add_fifo(struct net_device *dev, struct can_rx_offload *offload, unsigned int weight);
int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload, u64 reg);
int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload);
int can_rx_offload_queue_sorted(struct can_rx_offload *offload,
struct sk_buff *skb, u32 timestamp);
unsigned int can_rx_offload_get_echo_skb(struct can_rx_offload *offload,
unsigned int idx, u32 timestamp);
int can_rx_offload_irq_queue_err_skb(struct can_rx_offload *offload, struct sk_buff *skb);
void can_rx_offload_reset(struct can_rx_offload *offload);
void can_rx_offload_del(struct can_rx_offload *offload);
void can_rx_offload_enable(struct can_rx_offload *offload);
static inline void can_rx_offload_schedule(struct can_rx_offload *offload)
{
napi_schedule(&offload->napi);
}
static inline void can_rx_offload_disable(struct can_rx_offload *offload)
{
napi_disable(&offload->napi);
}
#endif /* !_CAN_RX_OFFLOAD_H */
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