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nl80211: Fix offloaded ACS regression for the 60 GHz band

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Addition of chan_2ghz_or_5ghz_to_freq() broke 60 GHz ACS, because it
assumes reported ACS channel is on either 2.4 or 5 GHz band. Fix this
by converting chan_2ghz_or_5ghz_to_freq() to a more generic
chan_to_freq(). The new function uses hw_mode to support 60 GHz.

Fixes: 41cac481a8 ("ACS: Use frequency params in ACS (offload) completed event interface")
Signed-off-by: Noam Shaked <nshaked@codeaurora.org>
This commit is contained in:
Noam Shaked 2020-03-09 18:16:02 -07:00 committed by Jouni Malinen
parent 1e8ea0833d
commit 00f6a27628
1 changed files with 65 additions and 28 deletions
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93
src/drivers/driver_nl80211_event.c
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@ -1753,8 +1753,41 @@ static enum hostapd_hw_mode get_qca_hw_mode(u8 hw_mode)
}
static unsigned int chan_2ghz_or_5ghz_to_freq(u8 chan)
static unsigned int chan_to_freq(struct wpa_driver_nl80211_data *drv,
u8 chan, enum hostapd_hw_mode hw_mode)
{
if (hw_mode == NUM_HOSTAPD_MODES) {
/* For drivers that do not report ACS_HW_MODE */
u16 num_modes, flags;
struct hostapd_hw_modes *modes;
u8 dfs_domain;
int i;
modes = nl80211_get_hw_feature_data(drv->first_bss, &num_modes,
&flags, &dfs_domain);
if (!modes) {
wpa_printf(MSG_DEBUG,
"nl80211: Fetching hardware mode failed");
goto try_2_4_or_5;
}
if (num_modes == 1)
hw_mode = modes[0].mode;
for (i = 0; i < num_modes; i++) {
os_free(modes[i].channels);
os_free(modes[i].rates);
}
os_free(modes);
}
if (hw_mode == HOSTAPD_MODE_IEEE80211AD) {
if (chan >= 1 && chan <= 6)
return 56160 + (2160 * chan);
return 0;
}
try_2_4_or_5:
if (chan >= 1 && chan <= 13)
return 2407 + 5 * chan;
if (chan == 14)
@ -1785,34 +1818,8 @@ static void qca_nl80211_acs_select_ch(struct wpa_driver_nl80211_data *drv,
return;
os_memset(&event, 0, sizeof(event));
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_FREQUENCY]) {
event.acs_selected_channels.pri_freq = nla_get_u32(
tb[QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_FREQUENCY]);
} else {
chan = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_CHANNEL]);
event.acs_selected_channels.pri_freq =
chan_2ghz_or_5ghz_to_freq(chan);
}
event.acs_selected_channels.hw_mode = NUM_HOSTAPD_MODES;
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_FREQUENCY]) {
event.acs_selected_channels.sec_freq = nla_get_u32(
tb[QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_FREQUENCY]);
} else {
chan = nla_get_u8(
tb[QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_CHANNEL]);
event.acs_selected_channels.sec_freq =
chan_2ghz_or_5ghz_to_freq(chan);
}
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL])
event.acs_selected_channels.vht_seg0_center_ch =
nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL]);
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG1_CENTER_CHANNEL])
event.acs_selected_channels.vht_seg1_center_ch =
nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG1_CENTER_CHANNEL]);
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH])
event.acs_selected_channels.ch_width =
nla_get_u16(tb[QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH]);
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE]) {
u8 hw_mode = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE]);
@ -1827,6 +1834,36 @@ static void qca_nl80211_acs_select_ch(struct wpa_driver_nl80211_data *drv,
}
}
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_FREQUENCY]) {
event.acs_selected_channels.pri_freq = nla_get_u32(
tb[QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_FREQUENCY]);
} else {
chan = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_CHANNEL]);
event.acs_selected_channels.pri_freq =
chan_to_freq(drv, chan,
event.acs_selected_channels.hw_mode);
}
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_FREQUENCY]) {
event.acs_selected_channels.sec_freq = nla_get_u32(
tb[QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_FREQUENCY]);
} else {
chan = nla_get_u8(
tb[QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_CHANNEL]);
event.acs_selected_channels.sec_freq =
chan_to_freq(drv, chan,
event.acs_selected_channels.hw_mode);
}
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL])
event.acs_selected_channels.vht_seg0_center_ch =
nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL]);
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG1_CENTER_CHANNEL])
event.acs_selected_channels.vht_seg1_center_ch =
nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG1_CENTER_CHANNEL]);
if (tb[QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH])
event.acs_selected_channels.ch_width =
nla_get_u16(tb[QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH]);
wpa_printf(MSG_INFO,
"nl80211: ACS Results: PFreq: %d SFreq: %d BW: %d VHT0: %d VHT1: %d HW_MODE: %d",
event.acs_selected_channels.pri_freq,