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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * linux/can/rx-offload.h
- *
- * Copyright (c) 2014 David Jander, Protonic Holland
- * Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde <[email protected]>
- */
- #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;
- struct sk_buff *(*mailbox_read)(struct can_rx_offload *offload,
- unsigned int mb, u32 *timestamp,
- bool drop);
- struct sk_buff_head skb_queue;
- struct sk_buff_head skb_irq_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_add_manual(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_timestamp(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,
- unsigned int *frame_len_ptr);
- int can_rx_offload_queue_tail(struct can_rx_offload *offload,
- struct sk_buff *skb);
- void can_rx_offload_irq_finish(struct can_rx_offload *offload);
- void can_rx_offload_threaded_irq_finish(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_disable(struct can_rx_offload *offload)
- {
- napi_disable(&offload->napi);
- }
- #endif /* !_CAN_RX_OFFLOAD_H */
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