1 /* 2 * Copyright (C) 2007 Michael Brown <mbrown (at) fensystems.co.uk>. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of the 7 * License, or any later version. 8 * 9 * This program is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 */ 18 19 FILE_LICENCE ( GPL2_OR_LATER ); 20 21 #include <string.h> 22 #include <stdio.h> 23 #include <unistd.h> 24 #include <errno.h> 25 #include <console.h> 26 #include <gpxe/netdevice.h> 27 #include <gpxe/device.h> 28 #include <gpxe/process.h> 29 #include <gpxe/keys.h> 30 #include <usr/ifmgmt.h> 31 32 /** @file 33 * 34 * Network interface management 35 * 36 */ 37 38 /** 39 * Open network device 40 * 41 * @v netdev Network device 42 * @ret rc Return status code 43 */ 44 int ifopen ( struct net_device *netdev ) { 45 int rc; 46 47 if ( ( rc = netdev_open ( netdev ) ) != 0 ) { 48 printf ( "Could not open %s: %s\n", 49 netdev->name, strerror ( rc ) ); 50 return rc; 51 } 52 53 return 0; 54 } 55 56 /** 57 * Close network device 58 * 59 * @v netdev Network device 60 */ 61 void ifclose ( struct net_device *netdev ) { 62 netdev_close ( netdev ); 63 } 64 65 /** 66 * Print network device error breakdown 67 * 68 * @v stats Network device statistics 69 * @v prefix Message prefix 70 */ 71 static void ifstat_errors ( struct net_device_stats *stats, 72 const char *prefix ) { 73 unsigned int i; 74 75 for ( i = 0 ; i < ( sizeof ( stats->errors ) / 76 sizeof ( stats->errors[0] ) ) ; i++ ) { 77 if ( stats->errors[i].count ) 78 printf ( " [%s: %d x \"%s\"]\n", prefix, 79 stats->errors[i].count, 80 strerror ( stats->errors[i].rc ) ); 81 } 82 } 83 84 /** 85 * Print status of network device 86 * 87 * @v netdev Network device 88 */ 89 void ifstat ( struct net_device *netdev ) { 90 printf ( "%s: %s on %s (%s)\n" 91 " [Link:%s, TX:%d TXE:%d RX:%d RXE:%d]\n", 92 netdev->name, netdev_addr ( netdev ), netdev->dev->name, 93 ( ( netdev->state & NETDEV_OPEN ) ? "open" : "closed" ), 94 ( netdev_link_ok ( netdev ) ? "up" : "down" ), 95 netdev->tx_stats.good, netdev->tx_stats.bad, 96 netdev->rx_stats.good, netdev->rx_stats.bad ); 97 if ( ! netdev_link_ok ( netdev ) ) { 98 printf ( " [Link status: %s]\n", 99 strerror ( netdev->link_rc ) ); 100 } 101 ifstat_errors ( &netdev->tx_stats, "TXE" ); 102 ifstat_errors ( &netdev->rx_stats, "RXE" ); 103 } 104 105 /** 106 * Wait for link-up, with status indication 107 * 108 * @v netdev Network device 109 * @v max_wait_ms Maximum time to wait, in ms 110 */ 111 int iflinkwait ( struct net_device *netdev, unsigned int max_wait_ms ) { 112 int key; 113 int rc; 114 115 if ( netdev_link_ok ( netdev ) ) 116 return 0; 117 118 printf ( "Waiting for link-up on %s...", netdev->name ); 119 120 while ( 1 ) { 121 if ( netdev_link_ok ( netdev ) ) { 122 rc = 0; 123 break; 124 } 125 if ( max_wait_ms-- == 0 ) { 126 rc = netdev->link_rc; 127 break; 128 } 129 step(); 130 if ( iskey() ) { 131 key = getchar(); 132 if ( key == CTRL_C ) { 133 rc = -ECANCELED; 134 break; 135 } 136 } 137 mdelay ( 1 ); 138 } 139 140 if ( rc == 0 ) { 141 printf ( " ok\n" ); 142 } else { 143 printf ( " failed: %s\n", strerror ( rc ) ); 144 } 145 146 return rc; 147 } 148