| /* SPDX-License-Identifier: GPL-2.0 |
| * |
| * mcp251xfd - Microchip MCP251xFD Family CAN controller driver |
| * |
| * Copyright (c) 2021, 2022 Pengutronix, |
| * Marc Kleine-Budde <kernel@pengutronix.de> |
| */ |
| |
| #ifndef _MCP251XFD_RAM_H |
| #define _MCP251XFD_RAM_H |
| |
| #include <linux/ethtool.h> |
| |
| #define CAN_RAM_NUM_MAX (-1) |
| |
| enum can_ram_mode { |
| CAN_RAM_MODE_CAN, |
| CAN_RAM_MODE_CANFD, |
| __CAN_RAM_MODE_MAX |
| }; |
| |
| struct can_ram_obj_config { |
| u8 size[__CAN_RAM_MODE_MAX]; |
| |
| u8 def[__CAN_RAM_MODE_MAX]; |
| u8 min; |
| u8 max; |
| |
| u8 fifo_num; |
| u8 fifo_depth_min; |
| u8 fifo_depth_coalesce_min; |
| }; |
| |
| struct can_ram_config { |
| const struct can_ram_obj_config rx; |
| const struct can_ram_obj_config tx; |
| |
| u16 size; |
| u8 fifo_depth; |
| }; |
| |
| struct can_ram_layout { |
| u8 default_rx; |
| u8 default_tx; |
| |
| u8 max_rx; |
| u8 max_tx; |
| |
| u8 cur_rx; |
| u8 cur_tx; |
| |
| u8 rx_coalesce; |
| u8 tx_coalesce; |
| }; |
| |
| void can_ram_get_layout(struct can_ram_layout *layout, |
| const struct can_ram_config *config, |
| const struct ethtool_ringparam *ring, |
| const struct ethtool_coalesce *ec, |
| const bool fd_mode); |
| |
| #endif |
