mirror of
https://github.com/Telecominfraproject/wlan-ap.git
synced 2025-10-30 10:02:53 +00:00
RRM: Channel Optimization based on Channel Utilization
Fixes: WIFI-13220 Signed-off-by: Tanya Singh <tanya_singh@accton.com>
This commit is contained in:
Tanya Singh
committed by
John Crispin
John Crispin
parent
63899e09ce
commit
6d4f5b961e
@@ -0,0 +1,31 @@
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#!/bin/sh
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. /lib/functions.sh
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board=$(board_name)
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case "$board" in
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"edgecore,eap101")
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ln -s /sys/kernel/debug/ath11k/ipq6018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/ipq6018\ hw1.0/mac1/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,eap102")
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ln -s /sys/kernel/debug/ath11k/ipq8074\ hw2.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/ipq8074\ hw2.0/mac1/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,oap101e-6e"|\
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"edgecore,oap101-6e")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_1/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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ln -s /sys/kernel/debug/ath11k/qcn6122_2/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy2
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;;
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"edgecore,oap101e"|\
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"edgecore,oap101")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_1/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,eap104")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_2/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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esac
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@@ -0,0 +1,31 @@
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#!/bin/sh
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. /lib/functions.sh
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board=$(board_name)
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case "$board" in
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"edgecore,eap101")
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ln -s /sys/kernel/debug/ath11k/ipq6018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/ipq6018\ hw1.0/mac1/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,eap102")
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ln -s /sys/kernel/debug/ath11k/ipq8074\ hw2.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/ipq8074\ hw2.0/mac1/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,oap101e-6e"|\
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"edgecore,oap101-6e")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_1/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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ln -s /sys/kernel/debug/ath11k/qcn6122_2/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy2
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;;
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"edgecore,oap101e"|\
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"edgecore,oap101")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_1/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,eap104")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_2/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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esac
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@@ -0,0 +1,31 @@
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#!/bin/sh
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. /lib/functions.sh
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board=$(board_name)
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case "$board" in
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"edgecore,eap101")
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ln -s /sys/kernel/debug/ath11k/ipq6018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/ipq6018\ hw1.0/mac1/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,eap102")
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ln -s /sys/kernel/debug/ath11k/ipq8074\ hw2.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/ipq8074\ hw2.0/mac1/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,oap101e-6e"|\
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"edgecore,oap101-6e")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_1/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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ln -s /sys/kernel/debug/ath11k/qcn6122_2/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy2
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;;
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"edgecore,oap101e"|\
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"edgecore,oap101")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_1/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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"edgecore,eap104")
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ln -s /sys/kernel/debug/ath11k/ipq5018\ hw1.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath11k/qcn6122_2/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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;;
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esac
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13
feeds/ipq95xx/ipq53xx/base-files/etc/hotplug.d/firmware/ath12k-pdev-stats
Executable file
13
feeds/ipq95xx/ipq53xx/base-files/etc/hotplug.d/firmware/ath12k-pdev-stats
Executable file
@@ -0,0 +1,13 @@
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#!/bin/sh
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. /lib/functions.sh
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board=$(board_name)
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case "$board" in
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"edgecore,eap105")
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ln -s /sys/kernel/debug/ath12k/ipq5332\ hw1.0_c000000.wifi/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy0
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ln -s /sys/kernel/debug/ath12k/qcn9274\ hw2.0_0001:01:00.0/mac0/fw_stats/pdev_stats /tmp/pdev_stats_phy1
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ln -s /sys/kernel/debug/ath12k/qcn9274\ hw2.0_0001:01:00.0/mac1/fw_stats/pdev_stats /tmp/pdev_stats_phy2
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;;
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esac
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@@ -6,6 +6,9 @@ STOP=01
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USE_PROCD=1
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USE_PROCD=1
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start_service() {
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start_service() {
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rm -rf /tmp/threshold_breach_count_phy*
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rm -rf /tmp/fixed_channel_phy*
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procd_open_instance
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procd_open_instance
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procd_set_param command /usr/bin/rrmd.uc
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procd_set_param command /usr/bin/rrmd.uc
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procd_set_param respawn 3600 5 0
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procd_set_param respawn 3600 5 0
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@@ -79,12 +79,17 @@ function lookup_phys() {
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continue;
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continue;
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let p = { path, phyname, index: phy.wiphy };
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let p = { path, phyname, index: phy.wiphy };
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p.channels = [];
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p.dfs_channels = [];
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p.htmode = [];
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p.htmode = [];
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p.band = [];
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p.band = [];
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for (let band in phy.wiphy_bands) {
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for (let band in phy.wiphy_bands) {
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for (let freq in band?.freqs) {
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for (let freq in band?.freqs) {
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if (freq.disabled)
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if (freq.disabled)
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continue;
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continue;
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push(p.channels, freq2channel(freq.freq));
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if (freq.radar)
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push(p.dfs_channels, freq2channel(freq.freq));
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if (freq.freq >= 6000)
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if (freq.freq >= 6000)
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push(p.band, '6G');
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push(p.band, '6G');
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else if (freq.freq <= 2484)
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else if (freq.freq <= 2484)
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918
feeds/ucentral/rrmd/files/usr/share/rrmd/policy_chanutil.uc
Normal file
918
feeds/ucentral/rrmd/files/usr/share/rrmd/policy_chanutil.uc
Normal file
@@ -0,0 +1,918 @@
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let board_info = global.ubus.conn.call('system', 'board');
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let _pdev_stats = {};
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let config = {
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/* Channel utilization threshold: When Utilization of the current channel or adjacent channel reaches the configured threshold (in %), the AP switches to a different Channel.
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Set this field to 0 to disable this feature. Range: 0-99 */
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threshold: 0,
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/* the periodicity for checking channel utilization (ms)*/
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interval: 86400*1000,
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/* the channel optimization algorithm: RCS (1)/ ACS(2) */
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algo: 1,
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/* the number of consecutive utilization threshold breaches allowed before Channel selection is triggered */
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consecutive_threshold_breach: 1,
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};
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// total number of radios: default=2
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let num_radios = 2;
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let board_name = board_info.board_name;
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switch(board_name) {
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case 'edgecore,eap105':
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case 'edgecore,oap101-6e':
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case 'edgecore,oap101e-6e':
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num_radios = 3;
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break;
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}
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function stats_info_read(path) {
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let res = trim(fs.readfile(path));
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return res || 0;
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}
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function stats_info_write(path, value) {
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let file = fs.open(path, 'w+');
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if (!file)
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return;
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file.write(value);
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file.close();
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}
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function cool_down_check(iface_num, cool_down_period) {
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let now_t = time();
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let cool_down_f= 0;
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// check cool_down_period passed or not
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let deltaTS = now_t - stats_info_read("/tmp/chan_switch_t" + iface_num);
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ulog_info(`[wlan%d] Cool down check: current_time=%d, chan_switch_time=%d, deltaTS(time passed)=%d \n`, iface_num, now_t, stats_info_read("/tmp/chan_switch_t" + iface_num), deltaTS);
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if (deltaTS < (cool_down_period/1000)) {
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ulog_info(`[wlan%d] Need to cool down (%d seconds hasn't passed) before switching channel \n`, iface_num, cool_down_period/1000);
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// Flag cool down
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cool_down_f = 1;
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}
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return cool_down_f;
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}
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function update_channel_switch_time(iface_num) {
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stats_info_write("/tmp/chan_switch_t" + iface_num, time());
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}
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function update_breach_count(iface_num, breach_count) {
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stats_info_write("/tmp/threshold_breach_count_phy" + iface_num , breach_count);
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}
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function random_time_calc() {
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// calculate random wait time before ACS is triggered based on the device SN
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let device_SN;
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let sn_flag = 0;
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let unique_random;
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let random_wait_time = 25;
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let command = "fw_printenv SN";
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let fp_SN = fs.popen(command);
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device_SN = fp_SN.read('all');
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fp_SN.close();
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if (device_SN) {
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unique_random = (match(trim(device_SN), /^(SN=EC)(\d+)/)[2]);
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} else {
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command = "fw_printenv serial_number";
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let fp_serial_num = fs.popen(command);
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device_SN = fp_serial_num.read('all');
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fp_serial_num.close();
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if (device_SN) {
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unique_random = (match(trim(device_SN), /^(serial_number=EC)(\d+)/)[2]);
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} else {
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// If there's no valid SN, set a flag to get fixed random
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sn_flag = 1;
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}
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}
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if (sn_flag != 1) {
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random_wait_time = unique_random % 25;
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}
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return random_wait_time;
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}
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function channel_to_freq(band, channel) {
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if (band == '2g' && channel >= 1 && channel <= 13)
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return 2407 + channel * 5;
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else if (band == '2g' && channel == 14)
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return 2484;
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else if (band == '5g' && channel >= 7 && channel <= 177)
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return 5000 + channel * 5;
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else if (band == '5g' && channel >= 183 && channel <= 196)
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return 4000 + channel * 5;
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else if (band == '6g' && channel >= 5)
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return 5950 + channel * 5;
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else if (band == '60g' && channel >= 1 && channel <= 6)
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return 56160 + channel * 2160;
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return null;
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}
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function center_freq_calc(band, freq, bandwidth) {
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if (band == '5g') {
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if (bandwidth == 40)
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return +freq + 10;
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if (bandwidth == 80)
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return +freq + 30;
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if (bandwidth == 160)
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return +freq + 70;
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}
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return +freq;
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}
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function channel_offset_calc(band, bandwidth) {
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let offset=null;
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if (band == '5g') {
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if (bandwidth == 40)
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offset = 1;
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if (bandwidth == 80)
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offset = 1;
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}
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return offset;
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}
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function interface_status_check(iface_num) {
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ulog_info(`[wlan%d] Checking interface status ... \n`, iface_num);
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let radio_status = 'DISABLED';
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let radio_down_f = 0;
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let curr_stat = global.ubus.conn.call(`hostapd.wlan${iface_num}`, 'get_status');
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if (curr_stat) {
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radio_status = curr_stat.status;
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} else {
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radio_status = "DISABLED";
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radio_down_f = 1;
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}
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ulog_info(`[wlan%d] status: %s \n`, iface_num, radio_status);
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return radio_down_f;
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}
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function check_current_channel(iface_num) {
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// get wireless interface's live status & channel using "ubus call hostapd.wlan<iface_num> get_status"
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let curr_stat = global.ubus.conn.call(`hostapd.wlan${iface_num}`, 'get_status');
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let current_channel = curr_stat.channel;
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if (curr_stat && current_channel) {
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ulog_info(`[wlan%d] Current channel (from hostapd) = %d \n`, iface_num, current_channel);
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}
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return current_channel;
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}
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function rrmd_switch_channel(msg) {
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ulog_info(`[wlan%d] Start switch channel to %d (%s)\n`, msg.phy, msg.channel, msg.bssid);
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let chan_switch_status = 0;
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let mode = lc(replace(msg.htmode, /[^a-zA-Z]/g, ''));
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||||||
|
let bandwidth = replace(msg.htmode, /[^0-9]/g, '');
|
||||||
|
|
||||||
|
let target_freq = channel_to_freq(msg.band, msg.channel);
|
||||||
|
let center_freq = center_freq_calc(msg.band, target_freq, bandwidth);
|
||||||
|
let sec_channel_offset = channel_offset_calc(msg.band, bandwidth);
|
||||||
|
|
||||||
|
// use hostadp_cli command
|
||||||
|
if (target_freq != null) {
|
||||||
|
ulog_info(`Sending to hostapd (Chan %d):: freq=%d, center_freq=%d, sec_channel_offset=%d, bandwidth=%d, mode=%s \n`, msg.channel, target_freq, center_freq, sec_channel_offset, bandwidth, mode);
|
||||||
|
// system(`/usr/sbin/hostapd_cli -i wlan${msg.phy} chan_switch 5 ${target_freq} center_freq1=${center_freq} sec_channel_offset=${sec_channel_offset} bandwidth=${bandwidth} ${mode}`);
|
||||||
|
|
||||||
|
let command_hostapd = `/usr/sbin/hostapd_cli -i wlan${msg.phy} chan_switch 5 ${target_freq} center_freq1=${center_freq} sec_channel_offset=${sec_channel_offset} bandwidth=${bandwidth} ${mode}`;
|
||||||
|
let res = fs.popen(command_hostapd);
|
||||||
|
let res_check = trim(res.read('all'));
|
||||||
|
res.close();
|
||||||
|
|
||||||
|
if (res_check == "OK") {
|
||||||
|
ulog_info(`hostapd_cli chan_switch status: OK \n`);
|
||||||
|
chan_switch_status = 1;
|
||||||
|
update_channel_switch_time(msg.phy);
|
||||||
|
|
||||||
|
// reset breach count back to 0 as we are calling the channel selection algo
|
||||||
|
update_breach_count(msg.phy, 0);
|
||||||
|
} else {
|
||||||
|
ulog_info(`hostapd_cli chan_switch status: FAIL \n`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
ulog_info(`Channel to frequency conversion fail \n`);
|
||||||
|
}
|
||||||
|
|
||||||
|
return chan_switch_status;
|
||||||
|
}
|
||||||
|
|
||||||
|
function switch_status_check(iface_num, radio_5G_index, dfs_enabled_5g_index) {
|
||||||
|
// need to wait for radio 5GHz interface to be UP, when DFS is enabled
|
||||||
|
if (dfs_enabled_5g_index == 1) {
|
||||||
|
ulog_info(`[wlan%d] 5G radio might need some time to be UP (DFS enabled) \n`, radio_5G_index);
|
||||||
|
|
||||||
|
let p = 0;
|
||||||
|
// Max 65 seconds wait for the DFS enabled interface to be UP
|
||||||
|
let timer = 70;
|
||||||
|
|
||||||
|
while (p < timer) {
|
||||||
|
ulog_info(`[wlan%d] Check#%d \n `, iface_num, p);
|
||||||
|
|
||||||
|
if (interface_status_check(iface_num) == 1) {
|
||||||
|
ulog_info(`[wlan%d] Interface not UP yet ... wait for 1 second \n`, iface_num);
|
||||||
|
sleep(1000);
|
||||||
|
p++;
|
||||||
|
|
||||||
|
if (p >= timer) {
|
||||||
|
ulog_info(`[wlan%d] Interface not UP yet ... cac_time is long \n`, iface_num);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] Interface is UP! \n`, iface_num);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let current_chan = check_current_channel(iface_num);
|
||||||
|
return current_chan;
|
||||||
|
}
|
||||||
|
|
||||||
|
function dfs_chan_check(iface_num, rcs_channel) {
|
||||||
|
let phy_id = "phy" + iface_num;
|
||||||
|
let dfs_enabled_5g = 0;
|
||||||
|
let dfs_chan_list = global.phy.phys[phy_id].dfs_channels;
|
||||||
|
|
||||||
|
// check if rcs_channel is in dfs_channel list
|
||||||
|
for (let dfs_chan in dfs_chan_list) {
|
||||||
|
if (dfs_chan == rcs_channel) {
|
||||||
|
// flag up if dfs channel detected
|
||||||
|
dfs_enabled_5g = 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return dfs_enabled_5g;
|
||||||
|
}
|
||||||
|
|
||||||
|
function fixed_channel_algo(iface_num, fixed_channel_f, auto_channel_f, fixed_chan_bkp, channel_config) {
|
||||||
|
// if fixed channel config is stored in the /tmp/fixed_channel_phyX file
|
||||||
|
if (fixed_channel_f == 1) {
|
||||||
|
if (auto_channel_f == 1) {
|
||||||
|
// if current channel is auto => change to fixed
|
||||||
|
ulog_info(`[wlan%d] Current channel is "auto"; Configured fixed channel was %d, reassigning fixed channel ...\n`, iface_num, fixed_chan_bkp);
|
||||||
|
|
||||||
|
// Set channel to the fixed channel
|
||||||
|
global.uci.set('wireless', 'radio' + iface_num, 'channel', fixed_chan_bkp);
|
||||||
|
global.uci.commit('wireless');
|
||||||
|
global.uci.apply;
|
||||||
|
} else if (auto_channel_f == 0) {
|
||||||
|
// if current channel is not auto => change to auto
|
||||||
|
ulog_info(`[wlan%d] Current channel is fixed (=%d), changing it to "auto" (=0) to trigger ACS \n`, iface_num, channel_config);
|
||||||
|
|
||||||
|
// Set channel to "auto"
|
||||||
|
global.uci.set('wireless', 'radio' + iface_num, 'channel', '0');
|
||||||
|
global.uci.commit('wireless');
|
||||||
|
global.uci.apply;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function get_chan_util(iface_num, sleep_time) {
|
||||||
|
let pdev_stats = {};
|
||||||
|
let chan_util = 0;
|
||||||
|
|
||||||
|
let prev_values = {
|
||||||
|
txFrameCount: null,
|
||||||
|
rxFrameCount: null,
|
||||||
|
rxClearCount: null,
|
||||||
|
cycleCount: null,
|
||||||
|
};
|
||||||
|
|
||||||
|
for (let c = 0; c < 2; c++) {
|
||||||
|
// Check tx and tx stats for wlanX interface
|
||||||
|
_pdev_stats[iface_num] = '/tmp/pdev_stats_phy' + iface_num;
|
||||||
|
|
||||||
|
let curr_values = {
|
||||||
|
txFrameCount: null,
|
||||||
|
rxFrameCount: null,
|
||||||
|
rxClearCount: null,
|
||||||
|
cycleCount: null,
|
||||||
|
};
|
||||||
|
|
||||||
|
pdev_stats = split(stats_info_read(_pdev_stats[iface_num]), "\n");
|
||||||
|
|
||||||
|
if (pdev_stats != null) {
|
||||||
|
for (let curr_value in pdev_stats) {
|
||||||
|
let txFrameCount = match(trim(curr_value), /^TX frame count(\s+\d+)/);
|
||||||
|
if (txFrameCount)
|
||||||
|
curr_values.txFrameCount = trim(txFrameCount[1]);
|
||||||
|
|
||||||
|
let rxFrameCount = match(trim(curr_value), /^RX frame count(\s+\d+)/);
|
||||||
|
if (rxFrameCount)
|
||||||
|
curr_values.rxFrameCount = trim(rxFrameCount[1]);
|
||||||
|
|
||||||
|
let rxClearCount = match(trim(curr_value), /^RX clear count(\s+\d+)/);
|
||||||
|
if (rxClearCount)
|
||||||
|
curr_values.rxClearCount = trim(rxClearCount[1]);
|
||||||
|
|
||||||
|
let cycleCount = match(trim(curr_value), /^Cycle count(\s+\d+)/);
|
||||||
|
if (cycleCount)
|
||||||
|
curr_values.cycleCount = trim(cycleCount[1]);
|
||||||
|
|
||||||
|
if (curr_values.txFrameCount && curr_values.rxFrameCount && curr_values.rxClearCount && curr_values.cycleCount) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let ignore = 0;
|
||||||
|
|
||||||
|
if (!prev_values.txFrameCount || !prev_values.rxFrameCount || !prev_values.rxClearCount || !prev_values.cycleCount) {
|
||||||
|
ignore = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ((curr_values.cycleCount) <= (prev_values.cycleCount) || (curr_values.txFrameCount) < (prev_values.txFrameCount) ||
|
||||||
|
(curr_values.rxFrameCount) < (prev_values.rxFrameCount) || (curr_values.rxClearCount) < (prev_values.rxClearCount)) {
|
||||||
|
ignore = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ignore != 1) {
|
||||||
|
let cycle_count_delta = curr_values.cycleCount - prev_values.cycleCount;
|
||||||
|
/* let tx_count_delta = curr_values.txFrameCount - prev_values.txFrameCount;
|
||||||
|
let rx_count_delta = curr_values.rxFrameCount - prev_values.rxFrameCount; */
|
||||||
|
let rx_clear_delta = curr_values.rxClearCount - prev_values.rxClearCount;
|
||||||
|
|
||||||
|
let total_usage = (rx_clear_delta * 100) / cycle_count_delta;
|
||||||
|
/* let tx_usage = (tx_count_delta * 100) / cycle_count_delta;
|
||||||
|
let rx_usage = (rx_count_delta * 100) / cycle_count_delta; */
|
||||||
|
|
||||||
|
chan_util = total_usage;
|
||||||
|
}
|
||||||
|
|
||||||
|
prev_values.txFrameCount=curr_values.txFrameCount;
|
||||||
|
prev_values.rxFrameCount=curr_values.rxFrameCount;
|
||||||
|
prev_values.rxClearCount=curr_values.rxClearCount;
|
||||||
|
prev_values.cycleCount=curr_values.cycleCount;
|
||||||
|
}
|
||||||
|
sleep(sleep_time);
|
||||||
|
}
|
||||||
|
|
||||||
|
return chan_util;
|
||||||
|
}
|
||||||
|
|
||||||
|
function channel_selection(iface_num, band, htmode, chan_list_valid) {
|
||||||
|
let math = require('math');
|
||||||
|
let phy_id = "phy" + iface_num;
|
||||||
|
let bw = replace(htmode, /[^0-9]/g, '');
|
||||||
|
|
||||||
|
// channel list from the driver based on the country code
|
||||||
|
let chan_list_cc = global.phy.phys[phy_id].channels;
|
||||||
|
// complete channel list
|
||||||
|
let chan_list_default = {};
|
||||||
|
// allowed channel list to select random channel from
|
||||||
|
let chan_list_allowed = [];
|
||||||
|
|
||||||
|
let chan_list_init = [];
|
||||||
|
let chan_list_legal = [];
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Channel list from the driver = %s \n`, iface_num, chan_list_cc);
|
||||||
|
ulog_info(`[wlan%d] Selected channel list from config (default channel list shall be used in case channels haven't been selected) = %s \n`, iface_num, chan_list_valid);
|
||||||
|
|
||||||
|
// default channel list
|
||||||
|
if (band == '5g') {
|
||||||
|
chan_list_default = {
|
||||||
|
"320": [ 0 ],
|
||||||
|
"160": [ 36, 100 ],
|
||||||
|
"80": [
|
||||||
|
36,
|
||||||
|
52,
|
||||||
|
100,
|
||||||
|
116,
|
||||||
|
132,
|
||||||
|
149,
|
||||||
|
165
|
||||||
|
],
|
||||||
|
"40": [
|
||||||
|
36, 44,
|
||||||
|
52, 60,
|
||||||
|
100, 108,
|
||||||
|
116, 124,
|
||||||
|
132, 140,
|
||||||
|
149, 157,
|
||||||
|
165
|
||||||
|
],
|
||||||
|
"20": [
|
||||||
|
36, 40, 44, 48,
|
||||||
|
52, 56, 60, 64,
|
||||||
|
100, 104, 108, 112,
|
||||||
|
116, 120, 124, 128,
|
||||||
|
132, 136, 140, 144,
|
||||||
|
149, 153, 157, 161,
|
||||||
|
165
|
||||||
|
]
|
||||||
|
};
|
||||||
|
} else if (band == '2g') {
|
||||||
|
chan_list_default = {
|
||||||
|
"20": [
|
||||||
|
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
|
||||||
|
]
|
||||||
|
};
|
||||||
|
}
|
||||||
|
|
||||||
|
// initial channel list after comparing the default chan list based on current bw, and country code
|
||||||
|
for (let default_chan in chan_list_default[bw]) {
|
||||||
|
for (let cc_chan in chan_list_cc) {
|
||||||
|
if (default_chan == cc_chan){
|
||||||
|
push(chan_list_init, default_chan);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (bw == "80" || bw == "40") {
|
||||||
|
// exclude last channels from the channel list when bw is 80MHz or 40MHz to avoid selecting a channel with a secondary channel that cannot be supported
|
||||||
|
chan_list_legal = slice(chan_list_init, 0, length(chan_list_init)-1) ;
|
||||||
|
} else {
|
||||||
|
chan_list_legal = chan_list_init;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (chan_list_valid) {
|
||||||
|
// if channel list is provided in the wireless config, check if it is valid based on the bandwidth selected and the country code
|
||||||
|
for (let valid_chan in chan_list_valid) {
|
||||||
|
for (let legal_chan in chan_list_legal) {
|
||||||
|
if (valid_chan == legal_chan) {
|
||||||
|
push(chan_list_allowed, valid_chan);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
// if channel list is not provided in the wireless config, check if the channel from the default channel list is valid based on the country code
|
||||||
|
chan_list_allowed = chan_list_legal;
|
||||||
|
}
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Allowed channel list = %s \n`, iface_num, chan_list_allowed);
|
||||||
|
|
||||||
|
// select random channel from chan_list_allowed
|
||||||
|
let random_channel_idx = sprintf('%d', math.rand() % length(chan_list_allowed));
|
||||||
|
let random_channel = chan_list_allowed[random_channel_idx];
|
||||||
|
ulog_info(`[wlan%d] Selected random channel = %d \n`, iface_num, random_channel);
|
||||||
|
|
||||||
|
return random_channel;
|
||||||
|
}
|
||||||
|
|
||||||
|
function algo_rcs(iface_num, current_channel, band, htmode, selected_channels) {
|
||||||
|
let chosen_random_channel = 0;
|
||||||
|
let res = 0;
|
||||||
|
|
||||||
|
// channel_selection script will help to select random channel
|
||||||
|
chosen_random_channel = channel_selection(iface_num, band, htmode, selected_channels);
|
||||||
|
stats_info_write("/tmp/phy" + iface_num + "_rrmchan", chosen_random_channel);
|
||||||
|
|
||||||
|
if (chosen_random_channel == current_channel) {
|
||||||
|
ulog_info(`[wlan%d] RCS assigned the same channel = %d; Skip channel switch \n`, iface_num, chosen_random_channel);
|
||||||
|
res = 0;
|
||||||
|
} else if (chosen_random_channel > 0) {
|
||||||
|
ulog_info(`[wlan%d] RCS done ... random channel found = %d\n`, iface_num, chosen_random_channel);
|
||||||
|
res = 1;
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] RCS scan FAIL. Retry Channel optimization at next cycle \n`, iface_num);
|
||||||
|
res = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
|
function channel_optimize() {
|
||||||
|
let selected_algo;
|
||||||
|
|
||||||
|
switch (config.algo) {
|
||||||
|
case 1:
|
||||||
|
selected_algo = "RCS";
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
selected_algo = "ACS";
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
ulog_info(`No RRM algorithm based on Channel Utilization selected \n`);
|
||||||
|
return config.interval;
|
||||||
|
}
|
||||||
|
|
||||||
|
ulog_info(`Selected algorithm for RRM = %s \n`, selected_algo);
|
||||||
|
if (config.threshold == 0) {
|
||||||
|
ulog_info(`RRM config threshold is 0, RRM channel optimization will not be executed \n`);
|
||||||
|
return config.interval;
|
||||||
|
}
|
||||||
|
|
||||||
|
let current_rf_down = {};
|
||||||
|
let cool_down_f = {};
|
||||||
|
let check_all_cool_down = 0;
|
||||||
|
let cool_down_period = config.interval * 10;
|
||||||
|
|
||||||
|
let htmode = {};
|
||||||
|
let radio_band = {};
|
||||||
|
let acs_exclude_dfs = {};
|
||||||
|
let channel_config = {};
|
||||||
|
let selected_channels = {};
|
||||||
|
let radio_5G_index = 0;
|
||||||
|
let dfs_enabled_5g = {};
|
||||||
|
let bssid_mac = {};
|
||||||
|
|
||||||
|
// check the channel config used by the customer
|
||||||
|
let fixed_chan_bkp = {};
|
||||||
|
let fixed_channel_f = {};
|
||||||
|
let current_channel = {};
|
||||||
|
let auto_channel_f ={};
|
||||||
|
|
||||||
|
// sleep time between channel stats check (default: 5 sec)
|
||||||
|
let sleep_time = 5000;
|
||||||
|
|
||||||
|
// check chan util
|
||||||
|
let chan_util_value = {};
|
||||||
|
let check_all_chan_util = 0;
|
||||||
|
|
||||||
|
// check threshold breach
|
||||||
|
let threshold_breach_count = {};
|
||||||
|
let threshold_breach_f = {};
|
||||||
|
let check_all_threshold_breach = 0;
|
||||||
|
let check_threshold_breach_idx = {};
|
||||||
|
|
||||||
|
ulog_info(`Interval for checking Channel Utilization = %d seconds; Interval for cooling down = %d seconds \n`, config.interval/1000, cool_down_period/1000);
|
||||||
|
|
||||||
|
for (let j = 0; j < num_radios; j++) {
|
||||||
|
let radio_id = "radio" + j;
|
||||||
|
|
||||||
|
// check wlan interface status
|
||||||
|
current_rf_down[j] = interface_status_check(j);
|
||||||
|
if (current_rf_down[j] == 0) {
|
||||||
|
cool_down_f[j] = cool_down_check(j, cool_down_period);
|
||||||
|
|
||||||
|
if (cool_down_f[j] != 1) {
|
||||||
|
// default HT mode = HT20
|
||||||
|
htmode[j] = 'HT20';
|
||||||
|
|
||||||
|
// get wireless interface uci config from "ubus call network.wireless status"
|
||||||
|
let wireless_status = global.ubus.conn.call('network.wireless', 'status');
|
||||||
|
htmode[j] = wireless_status[radio_id].config.htmode;
|
||||||
|
radio_band[j] = wireless_status[radio_id].config.band;
|
||||||
|
acs_exclude_dfs[j] = wireless_status[radio_id].config.acs_exclude_dfs;
|
||||||
|
channel_config[j] = wireless_status[radio_id].config.channel;
|
||||||
|
selected_channels[j] = wireless_status[radio_id].config.channels;
|
||||||
|
|
||||||
|
if (radio_band[j] == '5g') {
|
||||||
|
radio_5G_index = j;
|
||||||
|
|
||||||
|
// check if DFS is enabled for 5G radio
|
||||||
|
if (acs_exclude_dfs[j] == false) {
|
||||||
|
dfs_enabled_5g[j] = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (selected_algo == "RCS") {
|
||||||
|
if (channel_config[j] == '0') {
|
||||||
|
ulog_info(`[wlan%d] Configured channel is "auto" \n`, j);
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] Configured channel is fixed at %d \n`, j, channel_config[j]);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (selected_channels[j]) {
|
||||||
|
ulog_info(`[wlan%d] Selected channel list (please update the radio config, if not correct) = %s \n`, j, selected_channels[j]);
|
||||||
|
// should I check the validity of the chan list selected by the user??
|
||||||
|
}
|
||||||
|
} else if (selected_algo == "ACS") {
|
||||||
|
if (channel_config[j] != '0') {
|
||||||
|
ulog_info(`[wlan%d] Configured channel is fixed at %d \n`, j, channel_config[j]);
|
||||||
|
auto_channel_f[j] = 0;
|
||||||
|
|
||||||
|
stats_info_write("/tmp/fixed_channel_phy" + j, channel_config[j]);
|
||||||
|
fixed_channel_f[j] = 1;
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] Configured channel is "auto" \n`, j);
|
||||||
|
auto_channel_f[j] = 1;
|
||||||
|
|
||||||
|
// check if fixed channel exists
|
||||||
|
fixed_chan_bkp[j] = stats_info_read("/tmp/fixed_channel_phy" + j);
|
||||||
|
if (fixed_chan_bkp[j] > 0) {
|
||||||
|
ulog_info(`[wlan%d] Configured fixed channel was %d \n`, j, fixed_chan_bkp[j]);
|
||||||
|
fixed_channel_f[j] = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// check current channel
|
||||||
|
current_channel[j] = check_current_channel(j);
|
||||||
|
|
||||||
|
// check current breach_count
|
||||||
|
let current_threshold_breach_count = 0;
|
||||||
|
current_threshold_breach_count = stats_info_read("/tmp/threshold_breach_count_phy" + j);
|
||||||
|
ulog_info(`[wlan%d] Allowed consecutive Channel Utilization threshold breach count = %d \n`, j, config.consecutive_threshold_breach);
|
||||||
|
|
||||||
|
if (!current_threshold_breach_count || current_threshold_breach_count == null || current_threshold_breach_count == 'NaN') {
|
||||||
|
// /tmp/phyX_breachcount file doesn't exist yet or has invalid value
|
||||||
|
current_threshold_breach_count = 0;
|
||||||
|
}
|
||||||
|
ulog_info(`[wlan%d] Previous consecutive Channel Utilization threshold breach count = %d \n`, j, current_threshold_breach_count);
|
||||||
|
|
||||||
|
// channel util at this channel (auto/fixed)
|
||||||
|
chan_util_value[j] = get_chan_util(j, sleep_time);
|
||||||
|
ulog_info(`[wlan%d] Allowed Channel Utilization threshold = %d \n`, j, config.threshold, current_channel[j]);
|
||||||
|
ulog_info(`[wlan%d] Current Channel Utilization (Channel %d at %d) = %d \n`, j, current_channel[j], time(), chan_util_value[j]);
|
||||||
|
|
||||||
|
if (chan_util_value[j] >= config.threshold) {
|
||||||
|
check_all_chan_util++;
|
||||||
|
|
||||||
|
// Channel Utilization threshold exceeded, increase breach count
|
||||||
|
current_threshold_breach_count++;
|
||||||
|
threshold_breach_count[j] = current_threshold_breach_count;
|
||||||
|
ulog_info(`[wlan%d] New consecutive Channel Utilization threshold breach count = %d \n`, j, threshold_breach_count[j]);
|
||||||
|
|
||||||
|
if (threshold_breach_count[j] >= config.consecutive_threshold_breach) {
|
||||||
|
// threshold breach flag up!
|
||||||
|
threshold_breach_f[j] = 1;
|
||||||
|
// get index of iface which exceeded the threshold breach count
|
||||||
|
check_threshold_breach_idx[j] = j;
|
||||||
|
check_all_threshold_breach++;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
// reset the threshold breach count
|
||||||
|
ulog_info(`[wlan%d] Current Channel Utilization (%d) < Allowed Channel Utilization threshold (%d) \n`, j, chan_util_value[j], config.threshold);
|
||||||
|
ulog_info(`[wlan%d] Reset consecutive Channel Utilization threshold breach count \n`, j);
|
||||||
|
|
||||||
|
threshold_breach_count[j] = 0;
|
||||||
|
// threshold breach flag down!
|
||||||
|
threshold_breach_f[j] = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
update_breach_count(j, threshold_breach_count[j]);
|
||||||
|
} else {
|
||||||
|
check_all_cool_down++;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] Interface not UP, will be checked in the next interval \n`, j);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
for (let l = 0; l < num_radios; l++) {
|
||||||
|
if (current_rf_down[l] == 0) {
|
||||||
|
cool_down_f[l] = cool_down_check(l, cool_down_period);
|
||||||
|
|
||||||
|
if (cool_down_f[l] != 1) {
|
||||||
|
// start algo only if threshold breach count, and chan util threshold exceeded from configured values
|
||||||
|
if (threshold_breach_f[l] == 1 && chan_util_value[l] >= config.threshold) {
|
||||||
|
ulog_info(`[wlan%d] Consecutive Channel Utilization threshold breached = %d; %s Algorithm STARTS \n`, l, threshold_breach_count[l], selected_algo);
|
||||||
|
|
||||||
|
if (selected_algo == "RCS") {
|
||||||
|
// no. of channel utils to be compared
|
||||||
|
let max_chan = 2;
|
||||||
|
let curr_chan_list = {};
|
||||||
|
let chan_util_list = {};
|
||||||
|
let test_payload = {};
|
||||||
|
let final_payload = {};
|
||||||
|
let long_cac_time = 0;
|
||||||
|
|
||||||
|
bssid_mac[l] = stats_info_read("/sys/class/ieee80211/phy" + l + "/addresses");
|
||||||
|
|
||||||
|
sleep_time = 3000;
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Total of %d channel utils will be compared \n `, l, max_chan);
|
||||||
|
|
||||||
|
/* Collect the chan util info of #max_chan channels*/
|
||||||
|
for (let num_chan = 0; num_chan < max_chan; num_chan++) {
|
||||||
|
ulog_info(`[wlan%d] Channel utilization check ROUND#%d \n`, l, num_chan);
|
||||||
|
|
||||||
|
if (num_chan == 0) {
|
||||||
|
curr_chan_list[num_chan] = current_channel[l];
|
||||||
|
chan_util_list[num_chan] = chan_util_value[l];
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Current channel %d has Channel utilization = %d \n`, l, curr_chan_list[num_chan], chan_util_list[num_chan]);
|
||||||
|
} else {
|
||||||
|
// flag to assign max chan util value
|
||||||
|
let assign_max_chan_util = 0;
|
||||||
|
|
||||||
|
// call RCS for multiple random chan
|
||||||
|
let chan_scan = algo_rcs(l, curr_chan_list[num_chan-1], radio_band[l], htmode[l], selected_channels[l]);
|
||||||
|
curr_chan_list[num_chan] = stats_info_read("/tmp/phy" + l + "_rrmchan");
|
||||||
|
|
||||||
|
if (chan_scan == 1) {
|
||||||
|
// assign channel from RCS to interface
|
||||||
|
test_payload = {
|
||||||
|
action: 'chan_switch',
|
||||||
|
bssid: bssid_mac[l],
|
||||||
|
channel: curr_chan_list[num_chan],
|
||||||
|
phy: l,
|
||||||
|
band: radio_band[l],
|
||||||
|
htmode: htmode[l],
|
||||||
|
};
|
||||||
|
|
||||||
|
if (l == radio_5G_index) {
|
||||||
|
dfs_enabled_5g[radio_5G_index] = dfs_chan_check(radio_5G_index, test_payload.channel);
|
||||||
|
}
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Initiated channel switch to random channel %d for comparing Channel utilization \n`, l, test_payload.channel);
|
||||||
|
let test_switch_status = rrmd_switch_channel(test_payload);
|
||||||
|
|
||||||
|
if (test_switch_status != 0) {
|
||||||
|
let actual_channel = switch_status_check(l, radio_5G_index, dfs_enabled_5g[radio_5G_index]);
|
||||||
|
|
||||||
|
if (actual_channel == test_payload.channel) {
|
||||||
|
ulog_info(`[wlan%d] Channel Switch success; Checking Channel utilization ... \n`, l);
|
||||||
|
// get chan util for current assigned random channel
|
||||||
|
chan_util_list[num_chan] = get_chan_util(l, sleep_time);
|
||||||
|
} else {
|
||||||
|
if (dfs_enabled_5g[radio_5G_index] == 1 && interface_status_check(l) == 1) {
|
||||||
|
// dfs channel not up yet
|
||||||
|
ulog_info(`[wlan%d] DFS channel %d taking too long to be UP. Interface status/Channel utilization will be checked in the next interval\n`, l, test_payload.channel);
|
||||||
|
// jump back to original channel
|
||||||
|
long_cac_time = 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
assign_max_chan_util = 1;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
assign_max_chan_util = 1;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
// RCS failed
|
||||||
|
assign_max_chan_util = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (assign_max_chan_util == 1) {
|
||||||
|
ulog_info(`[wlan%d] Channel switch fail; assign Channel utilization = 100 \n`, l);
|
||||||
|
// assign highest util value for invalid channel
|
||||||
|
chan_util_list[num_chan] = 100;
|
||||||
|
}
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Channel utilization of random channel#%d (%s) = %d \n`, l, num_chan, curr_chan_list[num_chan], chan_util_list[num_chan] );
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Switch to the channel with the lowest chan util; if long_cac_time flag is up then switch back to the previous channel */
|
||||||
|
if (long_cac_time != 1) {
|
||||||
|
ulog_info(`[wlan%d] Channel utilization of all %d channels checked \n`, l, max_chan);
|
||||||
|
|
||||||
|
// find the minimum chan util and select that as the next channel
|
||||||
|
let min_util = chan_util_list[0];
|
||||||
|
let index_min_util = 0;
|
||||||
|
for (let x = 0; x < max_chan; x++) {
|
||||||
|
ulog_info(`[wlan%d] Channel#%d = %s; Channel utilization#%d = %d \n`, l, x, curr_chan_list[x], x, chan_util_list[x]);
|
||||||
|
|
||||||
|
if (chan_util_list[x] < min_util) {
|
||||||
|
min_util = chan_util_list[x];
|
||||||
|
index_min_util = x;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Channel %d has the least Channel utilization of %d; switching to this channel \n`, l, curr_chan_list[index_min_util], min_util );
|
||||||
|
|
||||||
|
let _current_channel = check_current_channel(l);
|
||||||
|
|
||||||
|
if (_current_channel != curr_chan_list[index_min_util]) {
|
||||||
|
// switch channel to min_util
|
||||||
|
final_payload = {
|
||||||
|
action: 'chan_switch',
|
||||||
|
bssid: bssid_mac[l],
|
||||||
|
channel: curr_chan_list[index_min_util],
|
||||||
|
phy: l,
|
||||||
|
band: radio_band[l],
|
||||||
|
htmode: htmode[l],
|
||||||
|
};
|
||||||
|
|
||||||
|
if (l == radio_5G_index) {
|
||||||
|
dfs_enabled_5g[radio_5G_index] = dfs_chan_check(radio_5G_index, final_payload.channel);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (final_payload.channel != curr_chan_list[max_chan-1] || min_util != chan_util_list[max_chan-1]) {
|
||||||
|
ulog_info(`[wlan%d] Initiated final channel switch to Channel %d \n`, l, final_payload.channel);
|
||||||
|
let final_switch_status = rrmd_switch_channel(final_payload);
|
||||||
|
|
||||||
|
if (final_switch_status != 0) {
|
||||||
|
let final_channel = switch_status_check(l, radio_5G_index, dfs_enabled_5g[radio_5G_index]);
|
||||||
|
|
||||||
|
if (final_channel == final_payload.channel) {
|
||||||
|
ulog_info(`[wlan%d] Final channel switch success \n`, l);
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] RCS algo fail (final channel switch failure), wait until next interval to retry\n`, l);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] RCS algo fail (final channel switch failure at hostapd_cli), wait until next interval to retry\n`, l);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] Channel switch not necessary, current channel %d has the least channel utilization value \n`, l, final_payload.channel);
|
||||||
|
// reset breach count
|
||||||
|
update_breach_count(l, 0);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] Channel switch not necessary, current channel %d is already assigned to the interface \n`, l, _current_channel);
|
||||||
|
// reset breach count
|
||||||
|
update_breach_count(l, 0);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
// revert back to the original channel
|
||||||
|
ulog_info(`[wlan%d] Channel %d has a cac_time longer than 60 seconds, RRM failed for this interval (you might want to avoid selecting this channel) \n`, l, test_payload.channel);
|
||||||
|
}
|
||||||
|
} else if (selected_algo == "ACS") {
|
||||||
|
let random_wait_time = random_time_calc();
|
||||||
|
|
||||||
|
/*
|
||||||
|
check_all_chan_util == num_radios: chan util threshold exceeded for all interfaces
|
||||||
|
check_all_chan_util >= 1: chan util threshold exceeded for one or more interfaces
|
||||||
|
|
||||||
|
check_all_cool_down == 0: cool down time for all interfaces is over
|
||||||
|
check_all_cool_down < num_radios: cool down time has passed for one or more interfaces
|
||||||
|
|
||||||
|
check_all_threshold_breach == num_radios: threshold breach count exceeded for all interfaces
|
||||||
|
check_all_threshold_breach >= 1: threshold breach count exceeded for one or more interfaces
|
||||||
|
*/
|
||||||
|
|
||||||
|
// flag to check if 5G radio was restarted
|
||||||
|
let radio_5g_restarted = 0;
|
||||||
|
|
||||||
|
if (check_all_chan_util == num_radios && check_all_cool_down == 0 && check_all_threshold_breach == num_radios) {
|
||||||
|
// Channel util high for all interfaces && cool down period over && threshold breach count exceeded for all interfaces: restart all interfaces
|
||||||
|
|
||||||
|
for (let m = 0; m < num_radios; m++) {
|
||||||
|
fixed_channel_algo(m, fixed_channel_f[m], auto_channel_f[m], fixed_chan_bkp[m], channel_config[m]);
|
||||||
|
}
|
||||||
|
|
||||||
|
ulog_info(`[all wlan interfaces] Initiating channel switch in %d seconds ... \n`, random_wait_time);
|
||||||
|
sleep(random_wait_time*1000);
|
||||||
|
ulog_info(`[all wlan interfaces] %s Algorithm will start; Turning DOWN/UP \n`, selected_algo);
|
||||||
|
|
||||||
|
// 5G radio was restarted
|
||||||
|
radio_5g_restarted = 1;
|
||||||
|
|
||||||
|
for (let x = 0; x < num_radios; x++) {
|
||||||
|
ulog_info(`[wlan%d] Channel will be switched \n`, x);
|
||||||
|
// timestamp for all interfaces must be saved
|
||||||
|
update_channel_switch_time(x);
|
||||||
|
|
||||||
|
// reset breach count back to 0 as we are calling the channel selection algo
|
||||||
|
update_breach_count(x, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
// restart all wlan interfaces
|
||||||
|
system(`wifi down`);
|
||||||
|
system(`wifi up`);
|
||||||
|
} else if (check_all_chan_util >= 1 && check_all_cool_down < num_radios && check_all_threshold_breach >= 1) {
|
||||||
|
// Channel util high for one or more interfaces && cool down period over for one or more interfaces && threshold breach count exceeded for one or more interface: restart that interface
|
||||||
|
for (let high_util_iface in check_threshold_breach_idx) {
|
||||||
|
fixed_channel_algo(high_util_iface, fixed_channel_f[high_util_iface], auto_channel_f[high_util_iface], fixed_chan_bkp[high_util_iface], channel_config[high_util_iface]);
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Initiating channel switch in %d seconds ... \n`, high_util_iface, random_wait_time);
|
||||||
|
sleep(random_wait_time*1000);
|
||||||
|
ulog_info(`[wlan%d] %s Algorithm will start; Turning DOWN/UP \n`, high_util_iface, selected_algo);
|
||||||
|
|
||||||
|
ulog_info(`[wlan%d] Channel will be switched \n`, high_util_iface);
|
||||||
|
// timestamp for wlanX interfaces must be saved
|
||||||
|
update_channel_switch_time(high_util_iface);
|
||||||
|
|
||||||
|
// reset breach count back to 0 as we are calling the channel selection algo
|
||||||
|
update_breach_count(high_util_iface, 0);
|
||||||
|
|
||||||
|
if (high_util_iface == radio_5G_index) {
|
||||||
|
radio_5g_restarted = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// wifi down radioX
|
||||||
|
system(`wifi down radio${high_util_iface}`);
|
||||||
|
// wifi up radioX
|
||||||
|
system(`wifi up radio${high_util_iface}`);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// need to wait for radio 5GHz interface, when it is DFS enabled && restarted
|
||||||
|
if (radio_5g_restarted == 1 && dfs_enabled_5g[radio_5G_index] == 1) {
|
||||||
|
ulog_info(`[wlan%d] 5G radio might need some time to be UP (DFS enabled) ... wait for 30 seconds \n`, radio_5G_index);
|
||||||
|
// 30 sec delay for DFS scan to come finish
|
||||||
|
sleep(30000);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (threshold_breach_f[l] != 1) {
|
||||||
|
ulog_info(`[wlan%d] Threshold breach count (=%d) < Allowed consecutive Channel Utilization threshold breach count (=%d), will be checked again in the next interval \n`, l, threshold_breach_count[l], config.consecutive_threshold_breach);
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] Channel utilization (=%d) within threshold (=%d), will be checked again in the next interval \n`, l, chan_util_value[l], config.threshold);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ulog_info(`[wlan%d] Need to cool down (%d seconds hasn't passed); will be checked again in the next interval \n`, l, cool_down_period/1000);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
ulog_info(`Interference detection finish; next RRM round starts in %d seconds \n`, config.interval/1000);
|
||||||
|
|
||||||
|
return config.interval;
|
||||||
|
}
|
||||||
|
|
||||||
|
return {
|
||||||
|
init: function(data) {
|
||||||
|
ulog_info('Policy - Channel utilization \n');
|
||||||
|
/* load config and override defaults if they were set in UCI */
|
||||||
|
for (let key in config)
|
||||||
|
if (data[key])
|
||||||
|
config[key] = +data[key];
|
||||||
|
|
||||||
|
uloop_timeout(channel_optimize, 20000);
|
||||||
|
},
|
||||||
|
|
||||||
|
};
|
||||||
@@ -96,7 +96,13 @@
|
|||||||
},
|
},
|
||||||
"rrm": {
|
"rrm": {
|
||||||
"beacon-request-assoc": true,
|
"beacon-request-assoc": true,
|
||||||
"station-stats-interval": 30
|
"station-stats-interval": 30,
|
||||||
|
"chanutil": {
|
||||||
|
"algo": "rcs",
|
||||||
|
"consecutive-threshold-breach": 2,
|
||||||
|
"interval": 240,
|
||||||
|
"threshold": 50
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
Reference in New Issue
Block a user