mac80211: determine chandef from HE 6 GHz operation
Support connecting to HE 6 GHz APs and mesh networks on 6 GHz, where the HT/VHT information is missing but instead the HE 6 GHz band capability is present, and the 6 GHz Operation information field is used to encode the channel configuration instead of the HT/VHT operation elements. Also add some other bits needed to connect to 6 GHz networks. Link: https://lore.kernel.org/r/1589399105-25472-10-git-send-email-rmanohar@codeaurora.org Co-developed-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Link: https://lore.kernel.org/r/20200528213443.25687d2695bc.I3f9747c1147480f65445f13eda5c4a5ed4e86757@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
Родитель
2a333a0db2
Коммит
57fa5e85d5
|
|
@ -2202,6 +2202,9 @@ bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
|
|||
const struct ieee80211_vht_operation *oper,
|
||||
const struct ieee80211_ht_operation *htop,
|
||||
struct cfg80211_chan_def *chandef);
|
||||
bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
|
||||
const struct ieee80211_he_operation *he_oper,
|
||||
struct cfg80211_chan_def *chandef);
|
||||
u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
|
||||
|
||||
int __must_check
|
||||
|
|
|
|||
|
|
@ -104,6 +104,7 @@ bool mesh_matches_local(struct ieee80211_sub_if_data *sdata,
|
|||
ieee80211_chandef_vht_oper(&sdata->local->hw, vht_cap_info,
|
||||
ie->vht_operation, ie->ht_operation,
|
||||
&sta_chan_def);
|
||||
ieee80211_chandef_he_6ghz_oper(sdata, ie->he_operation, &sta_chan_def);
|
||||
|
||||
if (!cfg80211_chandef_compatible(&sdata->vif.bss_conf.chandef,
|
||||
&sta_chan_def))
|
||||
|
|
|
|||
|
|
@ -156,15 +156,24 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
|
|||
struct ieee80211_sta_ht_cap sta_ht_cap;
|
||||
u32 ht_cfreq, ret;
|
||||
|
||||
memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap));
|
||||
ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap);
|
||||
|
||||
memset(chandef, 0, sizeof(struct cfg80211_chan_def));
|
||||
chandef->chan = channel;
|
||||
chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
|
||||
chandef->center_freq1 = channel->center_freq;
|
||||
chandef->freq1_offset = channel->freq_offset;
|
||||
|
||||
if (channel->band == NL80211_BAND_6GHZ) {
|
||||
if (!ieee80211_chandef_he_6ghz_oper(sdata, he_oper, chandef))
|
||||
ret = IEEE80211_STA_DISABLE_HT |
|
||||
IEEE80211_STA_DISABLE_VHT |
|
||||
IEEE80211_STA_DISABLE_HE;
|
||||
vht_chandef = *chandef;
|
||||
goto out;
|
||||
}
|
||||
|
||||
memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap));
|
||||
ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap);
|
||||
|
||||
if (!ht_oper || !sta_ht_cap.ht_supported) {
|
||||
ret = IEEE80211_STA_DISABLE_HT |
|
||||
IEEE80211_STA_DISABLE_VHT |
|
||||
|
|
@ -914,7 +923,8 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
|
|||
!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)))
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
|
||||
|
||||
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT))
|
||||
if (sband->band != NL80211_BAND_6GHZ &&
|
||||
!(ifmgd->flags & IEEE80211_STA_DISABLE_HT))
|
||||
ieee80211_add_ht_ie(sdata, skb, assoc_data->ap_ht_param,
|
||||
sband, chan, sdata->smps_mode);
|
||||
|
||||
|
|
@ -968,7 +978,8 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
|
|||
offset = noffset;
|
||||
}
|
||||
|
||||
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
|
||||
if (sband->band != NL80211_BAND_6GHZ &&
|
||||
!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
|
||||
ieee80211_add_vht_ie(sdata, skb, sband,
|
||||
&assoc_data->ap_vht_cap);
|
||||
|
||||
|
|
@ -3248,6 +3259,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
|
|||
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
|
||||
const struct cfg80211_bss_ies *bss_ies = NULL;
|
||||
struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data;
|
||||
bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ;
|
||||
u32 changed = 0;
|
||||
int err;
|
||||
bool ret;
|
||||
|
|
@ -3289,11 +3301,12 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
|
|||
* 2G/3G/4G wifi routers, reported models include the "Onda PN51T",
|
||||
* "Vodafone PocketWiFi 2", "ZTE MF60" and a similar T-Mobile device.
|
||||
*/
|
||||
if ((assoc_data->wmm && !elems->wmm_param) ||
|
||||
if (!is_6ghz &&
|
||||
((assoc_data->wmm && !elems->wmm_param) ||
|
||||
(!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) &&
|
||||
(!elems->ht_cap_elem || !elems->ht_operation)) ||
|
||||
(!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) &&
|
||||
(!elems->vht_cap_elem || !elems->vht_operation))) {
|
||||
(!elems->vht_cap_elem || !elems->vht_operation)))) {
|
||||
const struct cfg80211_bss_ies *ies;
|
||||
struct ieee802_11_elems bss_elems;
|
||||
|
||||
|
|
@ -3351,7 +3364,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
|
|||
* We previously checked these in the beacon/probe response, so
|
||||
* they should be present here. This is just a safety net.
|
||||
*/
|
||||
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) &&
|
||||
if (!is_6ghz && !(ifmgd->flags & IEEE80211_STA_DISABLE_HT) &&
|
||||
(!elems->wmm_param || !elems->ht_cap_elem || !elems->ht_operation)) {
|
||||
sdata_info(sdata,
|
||||
"HT AP is missing WMM params or HT capability/operation\n");
|
||||
|
|
@ -3359,7 +3372,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
|
|||
goto out;
|
||||
}
|
||||
|
||||
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) &&
|
||||
if (!is_6ghz && !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) &&
|
||||
(!elems->vht_cap_elem || !elems->vht_operation)) {
|
||||
sdata_info(sdata,
|
||||
"VHT AP is missing VHT capability/operation\n");
|
||||
|
|
@ -3367,6 +3380,14 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
|
|||
goto out;
|
||||
}
|
||||
|
||||
if (is_6ghz && !(ifmgd->flags & IEEE80211_STA_DISABLE_HE) &&
|
||||
!elems->he_6ghz_capa) {
|
||||
sdata_info(sdata,
|
||||
"HE 6 GHz AP is missing HE 6 GHz band capability\n");
|
||||
ret = false;
|
||||
goto out;
|
||||
}
|
||||
|
||||
mutex_lock(&sdata->local->sta_mtx);
|
||||
/*
|
||||
* station info was already allocated and inserted before
|
||||
|
|
@ -4826,6 +4847,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
|
|||
const struct ieee80211_he_operation *he_oper = NULL;
|
||||
struct ieee80211_supported_band *sband;
|
||||
struct cfg80211_chan_def chandef;
|
||||
bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ;
|
||||
struct ieee80211_bss *bss = (void *)cbss->priv;
|
||||
int ret;
|
||||
u32 i;
|
||||
|
|
@ -4838,21 +4860,23 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
|
|||
IEEE80211_STA_DISABLE_160MHZ);
|
||||
|
||||
/* disable HT/VHT/HE if we don't support them */
|
||||
if (!sband->ht_cap.ht_supported) {
|
||||
if (!sband->ht_cap.ht_supported && !is_6ghz) {
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
|
||||
}
|
||||
|
||||
if (!sband->vht_cap.vht_supported)
|
||||
if (!sband->vht_cap.vht_supported && !is_6ghz) {
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
|
||||
}
|
||||
|
||||
if (!ieee80211_get_he_sta_cap(sband))
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
|
||||
|
||||
rcu_read_lock();
|
||||
|
||||
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) {
|
||||
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && !is_6ghz) {
|
||||
const u8 *ht_oper_ie, *ht_cap_ie;
|
||||
|
||||
ht_oper_ie = ieee80211_bss_get_ie(cbss, WLAN_EID_HT_OPERATION);
|
||||
|
|
@ -4869,7 +4893,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
|
|||
}
|
||||
}
|
||||
|
||||
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) {
|
||||
if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && !is_6ghz) {
|
||||
const u8 *vht_oper_ie, *vht_cap;
|
||||
|
||||
vht_oper_ie = ieee80211_bss_get_ie(cbss,
|
||||
|
|
@ -4934,6 +4958,11 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
|
|||
|
||||
rcu_read_unlock();
|
||||
|
||||
if (ifmgd->flags & IEEE80211_STA_DISABLE_HE && is_6ghz) {
|
||||
sdata_info(sdata, "Rejecting non-HE 6/7 GHz connection");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* will change later if needed */
|
||||
sdata->smps_mode = IEEE80211_SMPS_OFF;
|
||||
|
||||
|
|
@ -5315,6 +5344,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
|
|||
int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
|
||||
struct cfg80211_assoc_request *req)
|
||||
{
|
||||
bool is_6ghz = req->bss->channel->band == NL80211_BAND_6GHZ;
|
||||
struct ieee80211_local *local = sdata->local;
|
||||
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
|
||||
struct ieee80211_bss *bss = (void *)req->bss->priv;
|
||||
|
|
@ -5457,14 +5487,15 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
|
|||
if (ht_ie && ht_ie[1] >= sizeof(struct ieee80211_ht_operation))
|
||||
assoc_data->ap_ht_param =
|
||||
((struct ieee80211_ht_operation *)(ht_ie + 2))->ht_param;
|
||||
else
|
||||
else if (!is_6ghz)
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
|
||||
vht_ie = ieee80211_bss_get_ie(req->bss, WLAN_EID_VHT_CAPABILITY);
|
||||
if (vht_ie && vht_ie[1] >= sizeof(struct ieee80211_vht_cap))
|
||||
memcpy(&assoc_data->ap_vht_cap, vht_ie + 2,
|
||||
sizeof(struct ieee80211_vht_cap));
|
||||
else
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
|
||||
else if (!is_6ghz)
|
||||
ifmgd->flags |= IEEE80211_STA_DISABLE_VHT |
|
||||
IEEE80211_STA_DISABLE_HE;
|
||||
rcu_read_unlock();
|
||||
|
||||
if (WARN((sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD) &&
|
||||
|
|
|
|||
|
|
@ -3244,6 +3244,112 @@ bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
|
|||
return true;
|
||||
}
|
||||
|
||||
bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
|
||||
const struct ieee80211_he_operation *he_oper,
|
||||
struct cfg80211_chan_def *chandef)
|
||||
{
|
||||
struct ieee80211_local *local = sdata->local;
|
||||
struct ieee80211_supported_band *sband;
|
||||
enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif);
|
||||
const struct ieee80211_sta_he_cap *he_cap;
|
||||
struct cfg80211_chan_def he_chandef = *chandef;
|
||||
const struct ieee80211_he_6ghz_oper *he_6ghz_oper;
|
||||
bool support_80_80, support_160;
|
||||
u8 he_phy_cap;
|
||||
u32 freq;
|
||||
|
||||
if (chandef->chan->band != NL80211_BAND_6GHZ)
|
||||
return true;
|
||||
|
||||
sband = local->hw.wiphy->bands[NL80211_BAND_6GHZ];
|
||||
|
||||
he_cap = ieee80211_get_he_iftype_cap(sband, iftype);
|
||||
if (!he_cap) {
|
||||
sdata_info(sdata, "Missing iftype sband data/HE cap");
|
||||
return false;
|
||||
}
|
||||
|
||||
he_phy_cap = he_cap->he_cap_elem.phy_cap_info[0];
|
||||
support_160 =
|
||||
he_phy_cap &
|
||||
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
|
||||
support_80_80 =
|
||||
he_phy_cap &
|
||||
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G;
|
||||
|
||||
if (!he_oper) {
|
||||
sdata_info(sdata,
|
||||
"HE is not advertised on (on %d MHz), expect issues\n",
|
||||
chandef->chan->center_freq);
|
||||
return false;
|
||||
}
|
||||
|
||||
he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper);
|
||||
|
||||
if (!he_6ghz_oper) {
|
||||
sdata_info(sdata,
|
||||
"HE 6GHz operation missing (on %d MHz), expect issues\n",
|
||||
chandef->chan->center_freq);
|
||||
return false;
|
||||
}
|
||||
|
||||
freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary,
|
||||
NL80211_BAND_6GHZ);
|
||||
he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq);
|
||||
|
||||
switch (u8_get_bits(he_6ghz_oper->control,
|
||||
IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) {
|
||||
case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ:
|
||||
he_chandef.width = NL80211_CHAN_WIDTH_20;
|
||||
break;
|
||||
case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ:
|
||||
he_chandef.width = NL80211_CHAN_WIDTH_40;
|
||||
break;
|
||||
case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ:
|
||||
he_chandef.width = NL80211_CHAN_WIDTH_80;
|
||||
break;
|
||||
case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ:
|
||||
he_chandef.width = NL80211_CHAN_WIDTH_80;
|
||||
if (!he_6ghz_oper->ccfs1)
|
||||
break;
|
||||
if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) {
|
||||
if (support_160)
|
||||
he_chandef.width = NL80211_CHAN_WIDTH_160;
|
||||
} else {
|
||||
if (support_80_80)
|
||||
he_chandef.width = NL80211_CHAN_WIDTH_80P80;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (he_chandef.width == NL80211_CHAN_WIDTH_160) {
|
||||
he_chandef.center_freq1 =
|
||||
ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
|
||||
NL80211_BAND_6GHZ);
|
||||
} else {
|
||||
he_chandef.center_freq1 =
|
||||
ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0,
|
||||
NL80211_BAND_6GHZ);
|
||||
he_chandef.center_freq2 =
|
||||
ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
|
||||
NL80211_BAND_6GHZ);
|
||||
}
|
||||
|
||||
if (!cfg80211_chandef_valid(&he_chandef)) {
|
||||
sdata_info(sdata,
|
||||
"HE 6GHz operation resulted in invalid chandef: %d MHz/%d/%d MHz/%d MHz\n",
|
||||
he_chandef.chan ? he_chandef.chan->center_freq : 0,
|
||||
he_chandef.width,
|
||||
he_chandef.center_freq1,
|
||||
he_chandef.center_freq2);
|
||||
return false;
|
||||
}
|
||||
|
||||
*chandef = he_chandef;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
|
||||
const struct ieee80211_supported_band *sband,
|
||||
const u8 *srates, int srates_len, u32 *rates)
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче