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authorSriram R <quic_srirrama@quicinc.com>2022-04-04 17:41:23 +0200
committerJohannes Berg <johannes.berg@intel.com>2022-04-11 16:42:03 +0200
commit046d2e7c50e3087a32a85fd384c21f896dbccf83 (patch)
tree20c812a5ba7e50d29a383d27464fbc3e8eb38eec /net/mac80211/vht.c
parentmac80211: minstrel_ht: fix where rate stats are stored (fixes debugfs output) (diff)
downloadlinux-046d2e7c50e3087a32a85fd384c21f896dbccf83.tar.xz
linux-046d2e7c50e3087a32a85fd384c21f896dbccf83.zip
mac80211: prepare sta handling for MLO support
Currently in mac80211 each STA object is represented using sta_info datastructure with the associated STA specific information and drivers access ieee80211_sta part of it. With MLO (Multi Link Operation) support being added in 802.11be standard, though the association is logically with a single Multi Link capable STA, at the physical level communication can happen via different advertised links (uniquely identified by Channel, operating class, BSSID) and hence the need to handle multiple link STA parameters within a composite sta_info object called the MLD STA. The different link STA part of MLD STA are identified using the link address which can be same or different as the MLD STA address and unique link id based on the link vif. To support extension of such a model, the sta_info datastructure is modified to hold multiple link STA objects with link specific params currently within sta_info moved to this new structure. Similarly this is done for ieee80211_sta as well which will be accessed within mac80211 as well as by drivers, hence trivial driver changes are expected to support this. For current non MLO supported drivers, only one link STA is present and link information is accessed via 'deflink' member. For MLO drivers, we still need to define the APIs etc. to get the correct link ID and access the correct part of the station info. Currently in mac80211, all link STA info are accessed directly via deflink. These will be updated to access via link pointers indexed by link id with MLO support patches, with link id being 0 for non MLO supported cases. Except for couple of macro related changes, below spatch takes care of updating mac80211 and driver code to access to the link STA info via deflink. @ieee80211_sta@ struct ieee80211_sta *s; struct sta_info *si; identifier var = {supp_rates, ht_cap, vht_cap, he_cap, he_6ghz_capa, eht_cap, rx_nss, bandwidth, txpwr}; @@ ( s-> - var + deflink.var | si->sta. - var + deflink.var ) @sta_info@ struct sta_info *si; identifier var = {gtk, pcpu_rx_stats, rx_stats, rx_stats_avg, status_stats, tx_stats, cur_max_bandwidth}; @@ ( si-> - var + deflink.var ) Signed-off-by: Sriram R <quic_srirrama@quicinc.com> Link: https://lore.kernel.org/r/1649086883-13246-1-git-send-email-quic_srirrama@quicinc.com [remove MLO-drivers notes from commit message, not clear yet; run spatch] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/vht.c')
-rw-r--r--net/mac80211/vht.c78
1 files changed, 39 insertions, 39 deletions
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 8f16aa9c725d..ff26e0c4787b 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -118,14 +118,14 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
const struct ieee80211_vht_cap *vht_cap_ie,
struct sta_info *sta)
{
- struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
+ struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.deflink.vht_cap;
struct ieee80211_sta_vht_cap own_cap;
u32 cap_info, i;
bool have_80mhz;
memset(vht_cap, 0, sizeof(*vht_cap));
- if (!sta->sta.ht_cap.ht_supported)
+ if (!sta->sta.deflink.ht_cap.ht_supported)
return;
if (!vht_cap_ie || !sband->vht_cap.vht_supported)
@@ -295,10 +295,10 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
switch (vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
- sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
+ sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
break;
default:
- sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_80;
+ sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_80;
if (!(vht_cap->vht_mcs.tx_highest &
cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE)))
@@ -310,10 +310,10 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
* above) between 160 and 80+80 yet.
*/
if (cap_info & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)
- sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
+ sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
}
- sta->sta.bandwidth = ieee80211_sta_cur_vht_bw(sta);
+ sta->sta.deflink.bandwidth = ieee80211_sta_cur_vht_bw(sta);
switch (vht_cap->cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK) {
case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
@@ -332,9 +332,9 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
/* FIXME: move this to some better location - parses HE/EHT now */
enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
{
- struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
- struct ieee80211_sta_he_cap *he_cap = &sta->sta.he_cap;
- struct ieee80211_sta_eht_cap *eht_cap = &sta->sta.eht_cap;
+ struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.deflink.vht_cap;
+ struct ieee80211_sta_he_cap *he_cap = &sta->sta.deflink.he_cap;
+ struct ieee80211_sta_eht_cap *eht_cap = &sta->sta.deflink.eht_cap;
u32 cap_width;
if (he_cap->has_he) {
@@ -369,7 +369,7 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
}
if (!vht_cap->vht_supported)
- return sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
+ return sta->sta.deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
IEEE80211_STA_RX_BW_40 :
IEEE80211_STA_RX_BW_20;
@@ -392,14 +392,14 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta)
{
- struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
+ struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.deflink.vht_cap;
u32 cap_width;
if (!vht_cap->vht_supported) {
- if (!sta->sta.ht_cap.ht_supported)
+ if (!sta->sta.deflink.ht_cap.ht_supported)
return NL80211_CHAN_WIDTH_20_NOHT;
- return sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
+ return sta->sta.deflink.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
NL80211_CHAN_WIDTH_40 : NL80211_CHAN_WIDTH_20;
}
@@ -416,13 +416,13 @@ enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta)
enum nl80211_chan_width
ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta)
{
- enum ieee80211_sta_rx_bandwidth cur_bw = sta->sta.bandwidth;
- struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
+ enum ieee80211_sta_rx_bandwidth cur_bw = sta->sta.deflink.bandwidth;
+ struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.deflink.vht_cap;
u32 cap_width;
switch (cur_bw) {
case IEEE80211_STA_RX_BW_20:
- if (!sta->sta.ht_cap.ht_supported)
+ if (!sta->sta.deflink.ht_cap.ht_supported)
return NL80211_CHAN_WIDTH_20_NOHT;
else
return NL80211_CHAN_WIDTH_20;
@@ -473,7 +473,7 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta)
enum nl80211_chan_width bss_width = sdata->vif.bss_conf.chandef.width;
bw = ieee80211_sta_cap_rx_bw(sta);
- bw = min(bw, sta->cur_max_bandwidth);
+ bw = min(bw, sta->deflink.cur_max_bandwidth);
/* Don't consider AP's bandwidth for TDLS peers, section 11.23.1 of
* IEEE80211-2016 specification makes higher bandwidth operation
@@ -501,12 +501,12 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
bool support_160;
/* if we received a notification already don't overwrite it */
- if (sta->sta.rx_nss)
+ if (sta->sta.deflink.rx_nss)
return;
- if (sta->sta.eht_cap.has_eht) {
+ if (sta->sta.deflink.eht_cap.has_eht) {
int i;
- const u8 *rx_nss_mcs = (void *)&sta->sta.eht_cap.eht_mcs_nss_supp;
+ const u8 *rx_nss_mcs = (void *)&sta->sta.deflink.eht_cap.eht_mcs_nss_supp;
/* get the max nss for EHT over all possible bandwidths and mcs */
for (i = 0; i < sizeof(struct ieee80211_eht_mcs_nss_supp); i++)
@@ -515,10 +515,10 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
IEEE80211_EHT_MCS_NSS_RX));
}
- if (sta->sta.he_cap.has_he) {
+ if (sta->sta.deflink.he_cap.has_he) {
int i;
u8 rx_mcs_80 = 0, rx_mcs_160 = 0;
- const struct ieee80211_sta_he_cap *he_cap = &sta->sta.he_cap;
+ const struct ieee80211_sta_he_cap *he_cap = &sta->sta.deflink.he_cap;
u16 mcs_160_map =
le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160);
u16 mcs_80_map = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80);
@@ -549,23 +549,23 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
he_rx_nss = rx_mcs_80;
}
- if (sta->sta.ht_cap.ht_supported) {
- if (sta->sta.ht_cap.mcs.rx_mask[0])
+ if (sta->sta.deflink.ht_cap.ht_supported) {
+ if (sta->sta.deflink.ht_cap.mcs.rx_mask[0])
ht_rx_nss++;
- if (sta->sta.ht_cap.mcs.rx_mask[1])
+ if (sta->sta.deflink.ht_cap.mcs.rx_mask[1])
ht_rx_nss++;
- if (sta->sta.ht_cap.mcs.rx_mask[2])
+ if (sta->sta.deflink.ht_cap.mcs.rx_mask[2])
ht_rx_nss++;
- if (sta->sta.ht_cap.mcs.rx_mask[3])
+ if (sta->sta.deflink.ht_cap.mcs.rx_mask[3])
ht_rx_nss++;
/* FIXME: consider rx_highest? */
}
- if (sta->sta.vht_cap.vht_supported) {
+ if (sta->sta.deflink.vht_cap.vht_supported) {
int i;
u16 rx_mcs_map;
- rx_mcs_map = le16_to_cpu(sta->sta.vht_cap.vht_mcs.rx_mcs_map);
+ rx_mcs_map = le16_to_cpu(sta->sta.deflink.vht_cap.vht_mcs.rx_mcs_map);
for (i = 7; i >= 0; i--) {
u8 mcs = (rx_mcs_map >> (2 * i)) & 3;
@@ -581,7 +581,7 @@ void ieee80211_sta_set_rx_nss(struct sta_info *sta)
rx_nss = max(vht_rx_nss, ht_rx_nss);
rx_nss = max(he_rx_nss, rx_nss);
rx_nss = max(eht_rx_nss, rx_nss);
- sta->sta.rx_nss = max_t(u8, 1, rx_nss);
+ sta->sta.deflink.rx_nss = max_t(u8, 1, rx_nss);
}
u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
@@ -601,8 +601,8 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT;
nss += 1;
- if (sta->sta.rx_nss != nss) {
- sta->sta.rx_nss = nss;
+ if (sta->sta.deflink.rx_nss != nss) {
+ sta->sta.deflink.rx_nss = nss;
sta_opmode.rx_nss = nss;
changed |= IEEE80211_RC_NSS_CHANGED;
sta_opmode.changed |= STA_OPMODE_N_SS_CHANGED;
@@ -611,27 +611,27 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
switch (opmode & IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK) {
case IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ:
/* ignore IEEE80211_OPMODE_NOTIF_BW_160_80P80 must not be set */
- sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_20;
+ sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_20;
break;
case IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ:
/* ignore IEEE80211_OPMODE_NOTIF_BW_160_80P80 must not be set */
- sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_40;
+ sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_40;
break;
case IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ:
if (opmode & IEEE80211_OPMODE_NOTIF_BW_160_80P80)
- sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
+ sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
else
- sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_80;
+ sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_80;
break;
case IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ:
/* legacy only, no longer used by newer spec */
- sta->cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
+ sta->deflink.cur_max_bandwidth = IEEE80211_STA_RX_BW_160;
break;
}
new_bw = ieee80211_sta_cur_vht_bw(sta);
- if (new_bw != sta->sta.bandwidth) {
- sta->sta.bandwidth = new_bw;
+ if (new_bw != sta->sta.deflink.bandwidth) {
+ sta->sta.deflink.bandwidth = new_bw;
sta_opmode.bw = ieee80211_sta_rx_bw_to_chan_width(sta);
changed |= IEEE80211_RC_BW_CHANGED;
sta_opmode.changed |= STA_OPMODE_MAX_BW_CHANGED;