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 16 struct 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 23 struct 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__ */ 40