include/uapi/misc/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
  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__ */