LXR linux/drivers/staging/octeon/ethernet-util.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * This file is based on code from OCTEON SDK by Cavium Networks.
   4 *
   5 * Copyright (c) 2003-2007 Cavium Networks
   6 */
   7
   8#include <asm/octeon/cvmx-pip.h>
   9#include <asm/octeon/cvmx-helper.h>
  10#include <asm/octeon/cvmx-helper-util.h>
  11
  12/**
  13 * cvm_oct_get_buffer_ptr - convert packet data address to pointer
  14 * @packet_ptr: Packet data hardware address
  15 *
  16 * Returns Packet buffer pointer
  17 */
  18static inline void *cvm_oct_get_buffer_ptr(union cvmx_buf_ptr packet_ptr)
  19{
  20        return cvmx_phys_to_ptr(((packet_ptr.s.addr >> 7) - packet_ptr.s.back)
  21                                << 7);
  22}
  23
  24/**
  25 * INTERFACE - convert IPD port to logical interface
  26 * @ipd_port: Port to check
  27 *
  28 * Returns Logical interface
  29 */
  30static inline int INTERFACE(int ipd_port)
  31{
  32        int interface;
  33
  34        if (ipd_port == CVMX_PIP_NUM_INPUT_PORTS)
  35                return 10;
  36        interface = cvmx_helper_get_interface_num(ipd_port);
  37        if (interface >= 0)
  38                return interface;
  39        panic("Illegal ipd_port %d passed to %s\n", ipd_port, __func__);
  40}
  41
  42/**
  43 * INDEX - convert IPD/PKO port number to the port's interface index
  44 * @ipd_port: Port to check
  45 *
  46 * Returns Index into interface port list
  47 */
  48static inline int INDEX(int ipd_port)
  49{
  50        return cvmx_helper_get_interface_index_num(ipd_port);
  51}
  52