| /* |
| * This file is based on code from OCTEON SDK by Cavium Networks. |
| * |
| * Copyright (c) 2003-2007 Cavium Networks |
| * |
| * This file is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, Version 2, as |
| * published by the Free Software Foundation. |
| */ |
| |
| /** |
| * cvm_oct_get_buffer_ptr - convert packet data address to pointer |
| * @packet_ptr: Packet data hardware address |
| * |
| * Returns Packet buffer pointer |
| */ |
| static inline void *cvm_oct_get_buffer_ptr(union cvmx_buf_ptr packet_ptr) |
| { |
| return cvmx_phys_to_ptr(((packet_ptr.s.addr >> 7) - packet_ptr.s.back) |
| << 7); |
| } |
| |
| /** |
| * INTERFACE - convert IPD port to logical interface |
| * @ipd_port: Port to check |
| * |
| * Returns Logical interface |
| */ |
| static inline int INTERFACE(int ipd_port) |
| { |
| if (ipd_port < 32) /* Interface 0 or 1 for RGMII,GMII,SPI, etc */ |
| return ipd_port >> 4; |
| else if (ipd_port < 36) /* Interface 2 for NPI */ |
| return 2; |
| else if (ipd_port < 40) /* Interface 3 for loopback */ |
| return 3; |
| else if (ipd_port == 40) /* Non existent interface for POW0 */ |
| return 4; |
| panic("Illegal ipd_port %d passed to INTERFACE\n", ipd_port); |
| } |
| |
| /** |
| * INDEX - convert IPD/PKO port number to the port's interface index |
| * @ipd_port: Port to check |
| * |
| * Returns Index into interface port list |
| */ |
| static inline int INDEX(int ipd_port) |
| { |
| if (ipd_port < 32) |
| return ipd_port & 15; |
| return ipd_port & 3; |
| } |
