David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 1 | /********************************************************************** |
| 2 | * Author: Cavium Networks |
| 3 | * |
| 4 | * Contact: support@caviumnetworks.com |
| 5 | * This file is part of the OCTEON SDK |
| 6 | * |
| 7 | * Copyright (c) 2003-2007 Cavium Networks |
| 8 | * |
| 9 | * This file is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License, Version 2, as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * This file is distributed in the hope that it will be useful, but |
| 14 | * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty |
| 15 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or |
| 16 | * NONINFRINGEMENT. See the GNU General Public License for more |
| 17 | * details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this file; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | * or visit http://www.gnu.org/licenses/. |
| 23 | * |
| 24 | * This file may also be available under a different license from Cavium. |
| 25 | * Contact Cavium Networks for more information |
| 26 | *********************************************************************/ |
| 27 | |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 28 | /** |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 29 | * cvm_oct_get_buffer_ptr - convert packet data address to pointer |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 30 | * @packet_ptr: Packet data hardware address |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 31 | * |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 32 | * Returns Packet buffer pointer |
| 33 | */ |
| 34 | static inline void *cvm_oct_get_buffer_ptr(union cvmx_buf_ptr packet_ptr) |
| 35 | { |
| 36 | return cvmx_phys_to_ptr(((packet_ptr.s.addr >> 7) - packet_ptr.s.back) |
| 37 | << 7); |
| 38 | } |
| 39 | |
| 40 | /** |
Justin P. Mattock | 215c47c | 2012-03-26 21:34:18 -0700 | [diff] [blame] | 41 | * INTERFACE - convert IPD port to logical interface |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 42 | * @ipd_port: Port to check |
| 43 | * |
| 44 | * Returns Logical interface |
| 45 | */ |
| 46 | static inline int INTERFACE(int ipd_port) |
| 47 | { |
| 48 | if (ipd_port < 32) /* Interface 0 or 1 for RGMII,GMII,SPI, etc */ |
| 49 | return ipd_port >> 4; |
| 50 | else if (ipd_port < 36) /* Interface 2 for NPI */ |
| 51 | return 2; |
| 52 | else if (ipd_port < 40) /* Interface 3 for loopback */ |
| 53 | return 3; |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 54 | else if (ipd_port == 40) /* Non existent interface for POW0 */ |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 55 | return 4; |
| 56 | else |
| 57 | panic("Illegal ipd_port %d passed to INTERFACE\n", ipd_port); |
| 58 | } |
| 59 | |
| 60 | /** |
David Daney | ec977c5 | 2010-02-16 17:25:32 -0800 | [diff] [blame] | 61 | * INDEX - convert IPD/PKO port number to the port's interface index |
David Daney | 80ff0fd | 2009-05-05 17:35:21 -0700 | [diff] [blame] | 62 | * @ipd_port: Port to check |
| 63 | * |
| 64 | * Returns Index into interface port list |
| 65 | */ |
| 66 | static inline int INDEX(int ipd_port) |
| 67 | { |
| 68 | if (ipd_port < 32) |
| 69 | return ipd_port & 15; |
| 70 | else |
| 71 | return ipd_port & 3; |
| 72 | } |