projects / OpenSPARC-T2-SAM / blame
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1 | \ ========== Copyright Header Begin ========================================== |
| 2 | \ | |
| 3 | \ Hypervisor Software File: netif.fth | |
| 4 | \ | |
| 5 | \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 6 | \ | |
| 7 | \ - Do no alter or remove copyright notices | |
| 8 | \ | |
| 9 | \ - Redistribution and use of this software in source and binary forms, with | |
| 10 | \ or without modification, are permitted provided that the following | |
| 11 | \ conditions are met: | |
| 12 | \ | |
| 13 | \ - Redistribution of source code must retain the above copyright notice, | |
| 14 | \ this list of conditions and the following disclaimer. | |
| 15 | \ | |
| 16 | \ - Redistribution in binary form must reproduce the above copyright notice, | |
| 17 | \ this list of conditions and the following disclaimer in the | |
| 18 | \ documentation and/or other materials provided with the distribution. | |
| 19 | \ | |
| 20 | \ Neither the name of Sun Microsystems, Inc. or the names of contributors | |
| 21 | \ may be used to endorse or promote products derived from this software | |
| 22 | \ without specific prior written permission. | |
| 23 | \ | |
| 24 | \ This software is provided "AS IS," without a warranty of any kind. | |
| 25 | \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, | |
| 26 | \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A | |
| 27 | \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN | |
| 28 | \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR | |
| 29 | \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR | |
| 30 | \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN | |
| 31 | \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR | |
| 32 | \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE | |
| 33 | \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, | |
| 34 | \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF | |
| 35 | \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | |
| 36 | \ | |
| 37 | \ You acknowledge that this software is not designed, licensed or | |
| 38 | \ intended for use in the design, construction, operation or maintenance of | |
| 39 | \ any nuclear facility. | |
| 40 | \ | |
| 41 | \ ========== Copyright Header End ============================================ | |
| 42 | id: @(#)netif.fth 1.1 04/09/07 | |
| 43 | purpose: Network interface layer abstraction | |
| 44 | copyright: Copyright 2004 Sun Microsystems, Inc. All Rights Reserved | |
| 45 | copyright: Use is subject to license terms. | |
| 46 | ||
| 47 | headerless | |
| 48 | ||
| 49 | defer (arp-input) ' 2drop to (arp-input) \ Forward reference | |
| 50 | defer (rarp-input) ' 2drop to (rarp-input) \ Forward reference | |
| 51 | defer (ip-input) ' 2drop to (ip-input) \ Forward reference | |
| 52 | ||
| 53 | \ Process incoming frame. Handle link-level demultiplexing. | |
| 54 | : if-input ( frame framelen type -- ) | |
| 55 | >r if-hdrlen@ encapsulated-data r> ( pkt pktlen type ) | |
| 56 | case | |
| 57 | IP_TYPE of (ip-input) endof | |
| 58 | ARP_TYPE of (arp-input) endof | |
| 59 | RARP_TYPE of (rarp-input) endof | |
| 60 | ( default ) nip swap pkt-free | |
| 61 | endcase ( ) | |
| 62 | ; | |
| 63 | ||
| 64 | \ Poll for incoming packets. | |
| 65 | : if-poll ( -- ) | |
| 66 | if-data >if-input @ execute if ( frame framelen type ) | |
| 67 | if-input ( ) | |
| 68 | then ( ) | |
| 69 | ; | |
| 70 | ||
| 71 | \ Network output interface function. | |
| 72 | : if-output ( pkt len dest.hwaddr type -- len' ) | |
| 73 | 3 pick >r ( pkt len hwaddr type ) | |
| 74 | 2swap if-hdrlen@ encapsulating-hdr 2swap ( frame framelen hwaddr type ) | |
| 75 | if-data >if-output @ execute ( len' ) | |
| 76 | r> pkt-free ( len' ) | |
| 77 | ; | |
| 78 | ||
| 79 | \ Determine the network interface type (Ethernet is assumed by default). | |
| 80 | : network-interface-type ( -- iftype ) | |
| 81 | " ethernet" " network-interface-type" my-parent ihandle>phandle | |
| 82 | get-package-property 0= if | |
| 83 | 2swap 2drop decode-string 2swap 2drop | |
| 84 | then | |
| 85 | " ethernet" $= if HWTYPE_ETHER else 0 then | |
| 86 | ; | |
| 87 | ||
| 88 | \ Network interface layer initialization. | |
| 89 | : netif-init ( -- ) | |
| 90 | /if-data dup alloc-mem tuck swap erase to if-data | |
| 91 | network-interface-type case | |
| 92 | 0 of ether-ifinit endof \ Unknown I/F; Assume ethernet | |
| 93 | HWTYPE_ETHER of ether-ifinit endof | |
| 94 | endcase | |
| 95 | init-nbpools | |
| 96 | ; | |
| 97 | ||
| 98 | \ Free network interface layer resources. | |
| 99 | : netif-close ( -- ) | |
| 100 | free-nbpools ( ) | |
| 101 | if-htype@ case ( ) | |
| 102 | HWTYPE_ETHER of ether-ifclose endof ( ) | |
| 103 | endcase ( ) | |
| 104 | if-data /if-data free-mem 0 to if-data ( ) | |
| 105 | ; | |
| 106 | ||
| 107 | headers |