Messages in this thread Patch in this message | | | Date | Fri, 03 Sep 2004 13:22:29 -0400 | From | Josef 'Jeff' Sipek <> | Subject | [PATCH 2.6] 64network: 64-bit network statistics |
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Upon registration of a network device, all the statistics variables are registered with watch64. Additionally, a new proc file is created /proc/net/dev64 displays the 64-bit values as supposed to /proc/net/dev which is left to display the original 32-bit variables for backward compatibility. The sysfs interface (/sys/class/net/<interface>/statistics/*) displays the 64-bit values only. On 64-bit systems, all is optimized away through watch64.
Requires: watch64
The following patch can be also pulled from http://jeffpc.bkbits.net/64network-2.6 (includes watch64)
Josef "Jeff" Sipek
Signed-off-by: Josef "Jeff" Sipek <jeffpc@optonline.net>
diff -Nru a/include/linux/netdevice.h b/include/linux/netdevice.h --- a/include/linux/netdevice.h 2004-09-03 12:22:08 -04:00 +++ b/include/linux/netdevice.h 2004-09-03 12:22:08 -04:00 @@ -14,6 +14,7 @@ * Alan Cox, <Alan.Cox@linux.org> * Bjorn Ekwall. <bj0rn@blox.se> * Pekka Riikonen <priikone@poseidon.pspt.fi> + * Josef "Jeff" Sipek <jeffpc@optonline.net> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -945,6 +946,10 @@ #ifdef CONFIG_SYSCTL extern char *net_sysctl_strdup(const char *s); #endif + +/* Register/unregister all the members of struct net_device_stats with watch64 */ +inline void net_register_stats64(struct net_device_stats* stats); +inline void net_unregister_stats64(struct net_device_stats* stats); #endif /* __KERNEL__ */ diff -Nru a/net/core/dev.c b/net/core/dev.c --- a/net/core/dev.c 2004-09-03 12:22:08 -04:00 +++ b/net/core/dev.c 2004-09-03 12:22:08 -04:00 @@ -18,6 +18,7 @@ * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> * Adam Sulmicki <adam@cfar.umd.edu> * Pekka Riikonen <priikone@poesidon.pspt.fi> + * Josef "Jeff" Sipek <jeffpc@optonline.net> * * Changes: * D.J. Barrow : Fixed bug where dev->refcnt gets set @@ -70,6 +71,7 @@ * indefinitely on dev->refcnt * J Hadi Salim : - Backlog queue sampling * - netif_rx() feedback + * Josef "Jeff" Sipek : Added watch64 calls for network statistics */ #include <asm/uaccess.h> @@ -108,6 +110,7 @@ #include <linux/kallsyms.h> #include <linux/netpoll.h> #include <linux/rcupdate.h> +#include <linux/watch64.h> #ifdef CONFIG_NET_RADIO #include <linux/wireless.h> /* Note : will define WIRELESS_EXT */ #include <net/iw_handler.h> @@ -2110,6 +2113,49 @@ seq_printf(seq, "%6s: No statistics available.\n", dev->name); } +static void dev_seq_printf_stats64(struct seq_file *seq, struct net_device *dev) +{ + if (dev->get_stats) { + struct net_device_stats *stats = dev->get_stats(dev); + + seq_printf(seq, "%6s:%8llu %7llu %4llu %4llu %4llu %5llu %10llu %9llu " + "%8llu %7llu %4llu %4llu %4llu %5llu %7llu %10llu\n", + dev->name, watch64_getval(&stats->rx_bytes,NULL), + watch64_getval(&stats->rx_packets,NULL), + watch64_getval(&stats->rx_errors,NULL), + watch64_getval(&stats->rx_dropped,NULL) + + watch64_getval(&stats->rx_missed_errors,NULL), + watch64_getval(&stats->rx_fifo_errors,NULL), + watch64_getval(&stats->rx_length_errors,NULL) + + watch64_getval(&stats->rx_over_errors,NULL) + + watch64_getval(&stats->rx_crc_errors,NULL) + + watch64_getval(&stats->rx_frame_errors,NULL), + watch64_getval(&stats->rx_compressed,NULL), + watch64_getval(&stats->multicast,NULL), + watch64_getval(&stats->tx_bytes,NULL), + watch64_getval(&stats->tx_packets,NULL), + watch64_getval(&stats->tx_errors,NULL), + watch64_getval(&stats->tx_dropped,NULL), + watch64_getval(&stats->tx_fifo_errors,NULL), + watch64_getval(&stats->collisions,NULL), + watch64_getval(&stats->tx_carrier_errors,NULL) + + watch64_getval(&stats->tx_aborted_errors,NULL) + + watch64_getval(&stats->tx_window_errors,NULL) + + watch64_getval(&stats->tx_heartbeat_errors,NULL), + watch64_getval(&stats->tx_compressed,NULL)); + } else + seq_printf(seq, "%6s: No statistics available.\n", dev->name); +} + +static void dev_seq_show_header(struct seq_file *seq) +{ + seq_puts(seq, "Inter-| Receive " + " | Transmit\n" + " face |bytes packets errs drop fifo frame " + "compressed multicast|bytes packets errs " + "drop fifo colls carrier compressed\n"); +} + /* * Called from the PROCfs module. This now uses the new arbitrary sized * /proc/net interface to create /proc/net/dev @@ -2117,16 +2163,21 @@ static int dev_seq_show(struct seq_file *seq, void *v) { if (v == SEQ_START_TOKEN) - seq_puts(seq, "Inter-| Receive " - " | Transmit\n" - " face |bytes packets errs drop fifo frame " - "compressed multicast|bytes packets errs " - "drop fifo colls carrier compressed\n"); + dev_seq_show_header(seq); else dev_seq_printf_stats(seq, v); return 0; } +static int dev_seq_show64(struct seq_file *seq, void *v) +{ + if (v == SEQ_START_TOKEN) + dev_seq_show_header(seq); + else + dev_seq_printf_stats64(seq, v); + return 0; +} + static struct netif_rx_stats *softnet_get_online(loff_t *pos) { struct netif_rx_stats *rc = NULL; @@ -2179,11 +2230,23 @@ .show = dev_seq_show, }; +static struct seq_operations dev_seq_ops64 = { + .start = dev_seq_start, + .next = dev_seq_next, + .stop = dev_seq_stop, + .show = dev_seq_show64, +}; + static int dev_seq_open(struct inode *inode, struct file *file) { return seq_open(file, &dev_seq_ops); } +static int dev_seq_open64(struct inode *inode, struct file *file) +{ + return seq_open(file, &dev_seq_ops64); +} + static struct file_operations dev_seq_fops = { .owner = THIS_MODULE, .open = dev_seq_open, @@ -2192,6 +2255,14 @@ .release = seq_release, }; +static struct file_operations dev_seq_fops64 = { + .owner = THIS_MODULE, + .open = dev_seq_open64, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + static struct seq_operations softnet_seq_ops = { .start = softnet_seq_start, .next = softnet_seq_next, @@ -2224,8 +2295,10 @@ if (!proc_net_fops_create("dev", S_IRUGO, &dev_seq_fops)) goto out; - if (!proc_net_fops_create("softnet_stat", S_IRUGO, &softnet_seq_fops)) + if (!proc_net_fops_create("dev64", S_IRUGO, &dev_seq_fops64)) goto out_dev; + if (!proc_net_fops_create("softnet_stat", S_IRUGO, &softnet_seq_fops)) + goto out_dev64; if (wireless_proc_init()) goto out_softnet; rc = 0; @@ -2233,6 +2306,8 @@ return rc; out_softnet: proc_net_remove("softnet_stat"); +out_dev64: + proc_net_remove("dev64"); out_dev: proc_net_remove("dev"); goto out; @@ -2910,6 +2985,9 @@ * device is present. */ + if (dev->get_stats) + net_register_stats64(dev->get_stats(dev)); + set_bit(__LINK_STATE_PRESENT, &dev->state); dev->next = NULL; @@ -2922,7 +3000,7 @@ dev_hold(dev); dev->reg_state = NETREG_REGISTERING; write_unlock_bh(&dev_base_lock); - + /* Notify protocols, that a new device appeared. */ notifier_call_chain(&netdev_chain, NETDEV_REGISTER, dev); @@ -3145,6 +3223,9 @@ /* If device is running, close it first. */ if (dev->flags & IFF_UP) dev_close(dev); + + if (dev->get_stats) + net_unregister_stats64(dev->get_stats(dev)); /* And unlink it from device chain. */ for (dp = &dev_base; (d = *dp) != NULL; dp = &d->next) { @@ -3246,6 +3327,98 @@ } #endif /* CONFIG_HOTPLUG_CPU */ +/* + * Register all the members of the net_device_stats structure + * + */ + +inline void net_register_stats64(struct net_device_stats* stats) +{ + if (!stats) + return; + + watch64_register(&stats->tx_packets,0); + watch64_enable (&stats->tx_packets,NULL); + watch64_register(&stats->rx_packets,0); + watch64_enable (&stats->rx_packets,NULL); + watch64_register(&stats->tx_bytes,0); + watch64_enable (&stats->tx_bytes,NULL); + watch64_register(&stats->rx_bytes,0); + watch64_enable (&stats->rx_bytes,NULL); + watch64_register(&stats->tx_errors,0); + watch64_enable (&stats->tx_errors,NULL); + watch64_register(&stats->rx_errors,0); + watch64_enable (&stats->rx_errors,NULL); + watch64_register(&stats->tx_dropped,0); + watch64_enable (&stats->tx_dropped,NULL); + watch64_register(&stats->rx_dropped,0); + watch64_enable (&stats->rx_dropped,NULL); + watch64_register(&stats->multicast,0); + watch64_enable (&stats->multicast,NULL); + watch64_register(&stats->collisions,0); + watch64_enable (&stats->collisions,NULL); + watch64_register(&stats->rx_length_errors,0); + watch64_enable (&stats->rx_length_errors,NULL); + watch64_register(&stats->rx_over_errors,0); + watch64_enable (&stats->rx_over_errors,NULL); + watch64_register(&stats->rx_crc_errors,0); + watch64_enable (&stats->rx_crc_errors,NULL); + watch64_register(&stats->rx_frame_errors,0); + watch64_enable (&stats->rx_frame_errors,NULL); + watch64_register(&stats->rx_fifo_errors,0); + watch64_enable (&stats->rx_fifo_errors,NULL); + watch64_register(&stats->rx_missed_errors,0); + watch64_enable (&stats->rx_missed_errors,NULL); + watch64_register(&stats->tx_aborted_errors,0); + watch64_enable (&stats->tx_aborted_errors,NULL); + watch64_register(&stats->tx_carrier_errors,0); + watch64_enable (&stats->tx_carrier_errors,NULL); + watch64_register(&stats->tx_fifo_errors,0); + watch64_enable (&stats->tx_fifo_errors,NULL); + watch64_register(&stats->tx_heartbeat_errors,0); + watch64_enable (&stats->tx_heartbeat_errors,NULL); + watch64_register(&stats->tx_window_errors,0); + watch64_enable (&stats->tx_window_errors,NULL); + watch64_register(&stats->rx_compressed,0); + watch64_enable (&stats->rx_compressed,NULL); + watch64_register(&stats->tx_compressed,0); + watch64_enable (&stats->tx_compressed,NULL); +} + +/* + * Unregister all the members of the net_device_stats structure + * + */ + +inline void net_unregister_stats64(struct net_device_stats* stats) +{ + if (!stats) + return; + + watch64_unregister(&stats->tx_packets,0); + watch64_unregister(&stats->rx_packets,0); + watch64_unregister(&stats->tx_bytes,0); + watch64_unregister(&stats->rx_bytes,0); + watch64_unregister(&stats->tx_errors,0); + watch64_unregister(&stats->rx_errors,0); + watch64_unregister(&stats->tx_dropped,0); + watch64_unregister(&stats->rx_dropped,0); + watch64_unregister(&stats->multicast,0); + watch64_unregister(&stats->collisions,0); + watch64_unregister(&stats->rx_length_errors,0); + watch64_unregister(&stats->rx_over_errors,0); + watch64_unregister(&stats->rx_crc_errors,0); + watch64_unregister(&stats->rx_frame_errors,0); + watch64_unregister(&stats->rx_fifo_errors,0); + watch64_unregister(&stats->rx_missed_errors,0); + watch64_unregister(&stats->tx_aborted_errors,0); + watch64_unregister(&stats->tx_carrier_errors,0); + watch64_unregister(&stats->tx_fifo_errors,0); + watch64_unregister(&stats->tx_heartbeat_errors,0); + watch64_unregister(&stats->tx_window_errors,0); + watch64_unregister(&stats->rx_compressed,0); + watch64_unregister(&stats->tx_compressed,0); +} /* * Initialize the DEV module. At boot time this walks the device list and diff -Nru a/net/core/net-sysfs.c b/net/core/net-sysfs.c --- a/net/core/net-sysfs.c 2004-09-03 12:22:08 -04:00 +++ b/net/core/net-sysfs.c 2004-09-03 12:22:08 -04:00 @@ -16,6 +16,7 @@ #include <net/sock.h> #include <linux/rtnetlink.h> #include <linux/wireless.h> +#include <linux/watch64.h> #define to_class_dev(obj) container_of(obj,struct class_device,kobj) #define to_net_dev(class) container_of(class, struct net_device, class_dev) @@ -23,6 +24,7 @@ static const char fmt_hex[] = "%#x\n"; static const char fmt_dec[] = "%d\n"; static const char fmt_ulong[] = "%lu\n"; +static const char fmt_ullong[] = "%llu\n"; static inline int dev_isalive(const struct net_device *dev) { @@ -204,8 +206,8 @@ read_lock(&dev_base_lock); if (dev_isalive(dev) && dev->get_stats && (stats = (*dev->get_stats)(dev))) - ret = sprintf(buf, fmt_ulong, - *(unsigned long *)(((u8 *) stats) + offset)); + ret = sprintf(buf, fmt_ullong, + watch64_getval((unsigned long *)(((u8 *) stats) + offset),NULL)); read_unlock(&dev_base_lock); return ret; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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