Adding upstream version 2.15.upstream/2.15upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 441 insertions, 0 deletions

diff --git a/src/devices/network.cpp b/src/devices/network.cpp
new file mode 100644
index 0000000..8087b7f
--- /dev/null
+++ b/src/devices/network.cpp
@@ -0,0 +1,441 @@
+/*
+ * Copyright 2010, Intel Corporation
+ *
+ * This file is part of PowerTOP
+ *
+ * This program file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program in a file named COPYING; if not, write to the
+ * Free Software Foundation, Inc,
+ * 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA
+ * or just google for it.
+ *
+ * Authors:
+ *	Arjan van de Ven <arjan@linux.intel.com>
+ */
+#include <iostream>
+#include <fstream>
+#include <vector>
+#include <string>
+#include <map>
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <libgen.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <linux/ethtool.h>
+
+using namespace std;
+
+#include "device.h"
+#include "network.h"
+#include "../lib.h"
+#include "../parameters/parameters.h"
+#include "../process/process.h"
+extern "C" {
+#include "../tuning/iw.h"
+}
+
+#include <string.h>
+#include <net/if.h>
+#include <linux/sockios.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+static map<string, class network *> nics;
+
+#ifdef DISABLE_TRYCATCH
+
+static inline void ethtool_cmd_speed_set(struct ethtool_cmd *ep,
+						__u32 speed)
+{
+
+	ep->speed = (__u16)speed;
+	ep->speed_hi = (__u16)(speed >> 16);
+}
+
+static inline __u32 ethtool_cmd_speed(struct ethtool_cmd *ep)
+{
+	return (ep->speed_hi << 16) | ep->speed;
+}
+
+#endif
+
+static void do_proc_net_dev(void)
+{
+	static time_t last_time;
+	class network *dev;
+	ifstream file;
+	char line[4096];
+	char *c, *c2;
+
+	if (time(NULL) == last_time)
+		return;
+
+	last_time = time(NULL);
+
+	file.open("/proc/net/dev", ios::in);
+	if (!file)
+		return;
+
+	file.getline(line, 4096);
+	file.getline(line, 4096);
+
+	while (file) {
+		int i = 0;
+		unsigned long val = 0;
+		uint64_t pkt = 0;
+		file.getline(line, 4096);
+		c = strchr(line, ':');
+		if (!c)
+			continue;
+		*c = 0;
+		c2 = c +1;
+		c = line; while (c && *c == ' ') c++;
+		/* c now points to the name of the nic */
+
+		dev = nics[c];
+		if (!dev)
+			continue;
+
+		c = c2++;
+		while (c != c2 && strlen(c) > 0) {
+			c2 = c;
+			val = strtoull(c, &c, 10);
+			i++;
+			if (i == 2 || i == 10)
+				pkt += val;
+
+		}
+		dev->pkts = pkt;
+	}
+	file.close();
+}
+
+
+network::network(const char *_name, const char *path): device()
+{
+	char line[4096];
+	std::string filename(path);
+	char devname[128];
+	start_up = 0;
+	end_up = 0;
+	start_speed = 0;
+	end_speed = 0;
+	start_pkts = 0;
+	end_pkts = 0;
+	pkts = 0;
+	valid_100 = -1;
+	valid_1000 = -1;
+	valid_high = -1;
+	valid_powerunsave = -1;
+
+	pt_strcpy(sysfs_path, path);
+	register_sysfs_path(sysfs_path);
+	pt_strcpy(devname, _name);
+	sprintf(humanname, "nic:%s", _name);
+	pt_strcpy(name, devname);
+
+	snprintf(devname, sizeof(devname), "%s-up", _name);
+	index_up = get_param_index(devname);
+	rindex_up = get_result_index(devname);
+
+	snprintf(devname, sizeof(devname), "%s-powerunsave", _name);
+	index_powerunsave = get_param_index(devname);
+	rindex_powerunsave = get_result_index(devname);
+
+	snprintf(devname, sizeof(devname), "%s-link-100", _name);
+	index_link_100 = get_param_index(devname);
+	rindex_link_100 = get_result_index(devname);
+
+	snprintf(devname, sizeof(devname), "%s-link-1000", _name);
+	index_link_1000 = get_param_index(devname);
+	rindex_link_1000 = get_result_index(devname);
+
+	snprintf(devname, sizeof(devname), "%s-link-high", _name);
+	index_link_high = get_param_index(devname);
+	rindex_link_high = get_result_index(devname);
+
+	snprintf(devname, sizeof(devname), "%s-packets", _name);
+	index_pkts = get_param_index(devname);
+	rindex_pkts = get_result_index(devname);
+
+	memset(line, 0, 4096);
+	filename.append("/device/driver");
+	if (readlink(filename.c_str(), line, 4096) > 0) {
+		snprintf(humanname, sizeof(humanname), _("Network interface: %s (%s)"), _name,  basename(line));
+	};
+}
+
+static int net_iface_up(const char *iface)
+{
+	int sock;
+	struct ifreq ifr;
+	int ret;
+
+	memset(&ifr, 0, sizeof(struct ifreq));
+
+	sock = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock<0)
+		return 0;
+
+	pt_strcpy(ifr.ifr_name, iface);
+
+	/* Check if the interface is up */
+	ret = ioctl(sock, SIOCGIFFLAGS, &ifr);
+	if (ret<0) {
+		close(sock);
+		return 0;
+	}
+
+	if (ifr.ifr_flags & (IFF_UP | IFF_RUNNING)) {
+		close(sock);
+		return 1;
+	}
+
+	close(sock);
+
+	return 0;
+}
+
+static int iface_link(const char *name)
+{
+	int sock;
+	struct ifreq ifr;
+	struct ethtool_value cmd;
+	int link;
+
+	memset(&ifr, 0, sizeof(struct ifreq));
+
+	sock = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock<0)
+		return 0;
+
+	pt_strcpy(ifr.ifr_name, name);
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	cmd.cmd = ETHTOOL_GLINK;
+	ifr.ifr_data = (caddr_t)&cmd;
+        ioctl(sock, SIOCETHTOOL, &ifr);
+	close(sock);
+
+	link = cmd.data;
+
+	return link;
+}
+
+
+static int iface_speed(const char *name)
+{
+	int sock;
+	struct ifreq ifr;
+	struct ethtool_cmd cmd;
+	int speed;
+
+	memset(&ifr, 0, sizeof(struct ifreq));
+
+	sock = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock<0)
+		return 0;
+
+	pt_strcpy(ifr.ifr_name, name);
+
+	memset(&cmd, 0, sizeof(cmd));
+
+	cmd.cmd = ETHTOOL_GSET;
+	ifr.ifr_data = (caddr_t)&cmd;
+        ioctl(sock, SIOCETHTOOL, &ifr);
+	close(sock);
+
+	speed = ethtool_cmd_speed(&cmd);
+
+
+	if (speed > 0 && speed <= 100)
+		speed = 100;
+	if (speed > 100 && speed <= 1000)
+		speed = 1000;
+	if (speed == 65535 || !iface_link(name))
+		speed = 0; /* no link */
+
+	return speed;
+}
+
+void network::start_measurement(void)
+{
+	start_up = 1;
+	start_speed = 0;
+	end_up = 1;
+	end_speed = 0;
+
+	start_speed = iface_speed(name);
+
+	start_up = net_iface_up(name);
+
+	do_proc_net_dev();
+	start_pkts = pkts;
+
+	gettimeofday(&before, NULL);
+}
+
+
+void network::end_measurement(void)
+{
+	int u_100, u_1000, u_high, u_powerunsave;
+
+	gettimeofday(&after, NULL);
+
+	end_speed = iface_speed(name);
+	end_up = net_iface_up(name);
+	do_proc_net_dev();
+	end_pkts = pkts;
+
+	duration = (after.tv_sec - before.tv_sec) + (after.tv_usec - before.tv_usec) / 1000000.0;
+
+	u_100 = 0;
+	u_1000 = 0;
+	u_high = 0;
+
+	if (start_speed == 100)
+		u_100 += 50;
+	if (start_speed == 1000)
+		u_1000 += 50;
+	if (start_speed > 1000)
+		u_high += 50;
+	if (end_speed == 100)
+		u_100 += 50;
+	if (end_speed == 1000)
+		u_1000 += 50;
+	if (end_speed > 1000)
+		u_high += 50;
+
+	if (start_pkts > end_pkts)
+		end_pkts = start_pkts;
+
+	u_powerunsave = 100 - 100 * get_wifi_power_saving(name);
+
+	report_utilization(rindex_link_100, u_100);
+	report_utilization(rindex_link_1000, u_1000);
+	report_utilization(rindex_link_high, u_high);
+	report_utilization(rindex_up, (start_up+end_up) / 2.0);
+	report_utilization(rindex_pkts, (end_pkts - start_pkts)/(duration + 0.001));
+	report_utilization(rindex_powerunsave, u_powerunsave);
+}
+
+
+double network::utilization(void)
+{
+	return (end_pkts - start_pkts) / (duration + 0.001);
+}
+
+const char * network::device_name(void)
+{
+	return name;
+}
+
+static void netdev_callback(const char *d_name)
+{
+	char devname[128];
+
+	std::string f_name("/sys/class/net/");
+	if (strcmp(d_name, "lo") == 0)
+		return;
+
+	f_name.append(d_name);
+
+	snprintf(devname, sizeof(devname), "%s-up", d_name);
+	register_parameter(devname);
+
+	snprintf(devname, sizeof(devname), "%s-powerunsave", d_name);
+	register_parameter(devname);
+
+	snprintf(devname, sizeof(devname), "%s-link-100", d_name);
+	register_parameter(devname);
+
+	snprintf(devname, sizeof(devname), "%s-link-1000", d_name);
+	register_parameter(devname);
+
+	snprintf(devname, sizeof(devname), "%s-link-high", d_name);
+	register_parameter(devname);
+
+	snprintf(devname, sizeof(devname), "%s-packets", d_name);
+	register_parameter(devname);
+
+	network *bl = new(std::nothrow) class network(d_name, f_name.c_str());
+	if (bl) {
+		all_devices.push_back(bl);
+		nics[d_name] = bl;
+	}
+}
+
+void create_all_nics(callback fn)
+{
+	if (!fn)
+		fn = &netdev_callback;
+	process_directory("/sys/class/net/", fn);
+}
+
+double network::power_usage(struct result_bundle *result, struct parameter_bundle *bundle)
+{
+	double power;
+	double factor;
+	double util;
+
+	power = 0;
+	factor = get_parameter_value(index_up, bundle);
+	util = get_result_value(rindex_up, result);
+
+	power += util * factor;
+
+	if (valid_100 == -1) {
+		valid_100 = utilization_power_valid(rindex_link_100);
+		valid_1000 = utilization_power_valid(rindex_link_1000);
+		valid_high = utilization_power_valid(rindex_link_high);
+		valid_powerunsave = utilization_power_valid(rindex_powerunsave);
+	}
+
+	if (valid_100 > 0) {
+		factor = get_parameter_value(index_link_100, bundle);
+		util = get_result_value(rindex_link_100, result);
+		power += util * factor / 100;
+	}
+
+
+	if (valid_1000 > 0) {
+		factor = get_parameter_value(index_link_1000, bundle);
+		util = get_result_value(rindex_link_1000, result);
+		power += util * factor / 100;
+	}
+
+	if (valid_high > 0) {
+		factor = get_parameter_value(index_link_high, bundle);
+		util = get_result_value(rindex_link_high, result);
+		power += util * factor / 100;
+	}
+
+	if (valid_powerunsave > 0) {
+		factor = get_parameter_value(index_powerunsave, bundle);
+		util = get_result_value(rindex_powerunsave, result);
+		power += util * factor / 100;
+	}
+
+	factor = get_parameter_value(index_pkts, bundle);
+	util = get_result_value(rindex_pkts, result);
+	if (util > 5000)
+		util = 5000;
+
+	power += util * factor / 100;
+
+	return power;
+}