mrvl_cn10k_dpi.h

 1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 2/*
 3 * Marvell Octeon CN10K DPI driver
 4 *
 5 * Copyright (C) 2024 Marvell.
 6 *
 7 */
 8
 9#ifndef __MRVL_CN10K_DPI_H__
10#define __MRVL_CN10K_DPI_H__
11
12#include <linux/types.h>
13
14#define DPI_MAX_ENGINES 6
15
16struct dpi_mps_mrrs_cfg {
17	__u16 max_read_req_sz; /* Max read request size */
18	__u16 max_payload_sz;  /* Max payload size */
19	__u16 port; /* Ebus port */
20	__u16 reserved; /* Reserved */
21};
22
23struct dpi_engine_cfg {
24	__u64 fifo_mask; /* FIFO size mask in KBytes */
25	__u16 molr[DPI_MAX_ENGINES]; /* Max outstanding load requests */
26	__u16 update_molr; /* '1' to update engine MOLR */
27	__u16 reserved; /* Reserved */
28};
29
30/* DPI ioctl numbers */
31#define DPI_MAGIC_NUM	0xB8
32
33/* Set MPS & MRRS parameters */
34#define DPI_MPS_MRRS_CFG _IOW(DPI_MAGIC_NUM, 1, struct dpi_mps_mrrs_cfg)
35
36/* Set Engine FIFO configuration */
37#define DPI_ENGINE_CFG   _IOW(DPI_MAGIC_NUM, 2, struct dpi_engine_cfg)
38
39#endif /* __MRVL_CN10K_DPI_H__ */