40 lines · c
1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2/*3 * Marvell Octeon CN10K DPI driver4 *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 615 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 0xB832 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__ */40