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mesh: Enable 160 MHz bandwidth support for 6 GHz in IEEE 802.11s mesh

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Since the 6 GHz band has no DFS channels, enable 6 GHz 160 MHz bandwidth
as the default configuration for IEEE 802.11s mesh.

example:
network={
 ssid="6gmesh160"
 key_mgmt=SAE
 mode=5
 frequency=6275
 psk="1234567890"
}

Signed-off-by: P Praneesh <ppranees@codeaurora.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
This commit is contained in:
Pradeep Kumar Chitrapu 2021-09-09 10:46:16 -07:00 committed by Jouni Malinen
parent ab0af709df
commit c8b94bc7b3
1 changed files with 40 additions and 11 deletions
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51
wpa_supplicant/wpa_supplicant.c
View file

@ -2409,6 +2409,23 @@ static int drv_supports_vht(struct wpa_supplicant *wpa_s,
}
static bool ibss_mesh_is_80mhz_avail(int channel, struct hostapd_hw_modes *mode)
{
int i;
for (i = channel; i < channel + 16; i += 4) {
struct hostapd_channel_data *chan;
chan = hw_get_channel_chan(mode, i, NULL);
if (!chan ||
chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
return false;
}
return true;
}
void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
const struct wpa_ssid *ssid,
struct hostapd_freq_params *freq)
@ -2421,6 +2438,7 @@ void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
int bw80[] = { 5180, 5260, 5500, 5580, 5660, 5745, 5955,
6035, 6115, 6195, 6275, 6355, 6435, 6515,
6595, 6675, 6755, 6835, 6915, 6995 };
int bw160[] = { 5955, 6115, 6275, 6435, 6595, 6755, 6915 };
struct hostapd_channel_data *pri_chan = NULL, *sec_chan = NULL;
u8 channel;
int i, chan_idx, ht40 = -1, res, obss_scan = 1;
@ -2648,22 +2666,33 @@ skip_to_6ghz:
ieee80211_freq_to_chan(bw80[j], &channel) == NUM_HOSTAPD_MODES)
return;
for (i = channel; i < channel + 16; i += 4) {
struct hostapd_channel_data *chan;
chan = hw_get_channel_chan(mode, i, NULL);
if (!chan)
return;
/* Back to HT configuration if channel not usable */
if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
return;
}
/* Back to HT configuration if channel not usable */
if (!ibss_mesh_is_80mhz_avail(channel, mode))
return;
chwidth = CHANWIDTH_80MHZ;
seg0 = channel + 6;
seg1 = 0;
if ((mode->he_capab[ieee80211_mode].phy_cap[
HE_PHYCAP_CHANNEL_WIDTH_SET_IDX] &
HE_PHYCAP_CHANNEL_WIDTH_SET_160MHZ_IN_5G) && is_6ghz) {
/* In 160 MHz, the initial four 20 MHz channels were validated
* above; check the remaining four 20 MHz channels for the total
* of 160 MHz bandwidth.
*/
if (!ibss_mesh_is_80mhz_avail(channel + 16, mode))
return;
for (j = 0; j < ARRAY_SIZE(bw160); j++) {
if (freq->freq == bw160[j]) {
chwidth = CHANWIDTH_160MHZ;
seg0 = channel + 14;
break;
}
}
}
if (ssid->max_oper_chwidth == CHANWIDTH_80P80MHZ) {
/* setup center_freq2, bandwidth */
for (k = 0; k < ARRAY_SIZE(bw80); k++) {