| /* 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 <kernel@pengutronix.de> |
| */ |
| |
| #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; |
| 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_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, |
| unsigned int *frame_len_ptr); |
| int can_rx_offload_queue_tail(struct can_rx_offload *offload, |
| struct sk_buff *skb); |
| 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 */ |