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wlan-ap-Telecominfraproject/feeds/wifi-ax/mac80211/patches/qca/211-mac80211-rename-csa-counters-to-countdown-counters.patch
John Crispin 528a778e38 open-converged-wireless: Import 21.02 based uCentral tree 
Signed-off-by: John Crispin <john@phrozen.org>
2021-03-25 12:19:47 +01:00

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From: John Crispin <john@phrozen.org>
Date: Wed, 26 Aug 2020 07:56:47 +0200
Subject: [PATCH] mac80211: rename csa counters to countdown counters
We want to reuse the functions and structs for other counters such as BSS
color change. Rename them to more generic names.
Signed-off-by: John Crispin <john@phrozen.org>
---
drivers/net/wireless/ath/ath10k/mac.c | 4 +-
drivers/net/wireless/ath/ath10k/wmi.c | 2 +-
drivers/net/wireless/ath/ath11k/wmi.c | 4 +-
drivers/net/wireless/ath/ath9k/beacon.c | 2 +-
drivers/net/wireless/ath/ath9k/htc_drv_beacon.c | 2 +-
drivers/net/wireless/mac80211_hwsim.c | 2 +-
include/net/mac80211.h | 35 ++++++------
net/mac80211/cfg.c | 14 ++---
net/mac80211/ibss.c | 4 +-
net/mac80211/ieee80211_i.h | 6 +-
net/mac80211/main.c | 2 +-
net/mac80211/mesh.c | 4 +-
net/mac80211/offchannel.c | 2 +-
net/mac80211/tx.c | 73 +++++++++++++------------
14 files changed, 78 insertions(+), 78 deletions(-)
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2019,8 +2019,8 @@ static void ath10k_mac_vif_ap_csa_count_
if (!arvif->is_up)
return;
- if (!ieee80211_csa_is_complete(vif)) {
- ieee80211_csa_update_counter(vif);
+ if (!ieee80211_beacon_cntdwn_is_complete(vif)) {
+ ieee80211_beacon_update_cntdwn(vif);
ret = ath10k_mac_setup_bcn_tmpl(arvif);
if (ret)
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -3879,7 +3879,7 @@ void ath10k_wmi_event_host_swba(struct a
* actual channel switch is done
*/
if (arvif->vif->csa_active &&
- ieee80211_csa_is_complete(arvif->vif)) {
+ ieee80211_beacon_cntdwn_is_complete(arvif->vif)) {
ieee80211_csa_finish(arvif->vif);
continue;
}
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1861,8 +1861,8 @@ int ath11k_wmi_bcn_tmpl(struct ath11k *a
FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
cmd->vdev_id = vdev_id;
cmd->tim_ie_offset = offs->tim_offset;
- cmd->csa_switch_count_offset = offs->csa_counter_offs[0];
- cmd->ext_csa_switch_count_offset = offs->csa_counter_offs[1];
+ cmd->csa_switch_count_offset = offs->cntdwn_counter_offs[0];
+ cmd->ext_csa_switch_count_offset = offs->cntdwn_counter_offs[1];
cmd->buf_len = bcn->len;
cmd->mbssid_ie_offset = offs->multiple_bssid_offset;
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -365,7 +365,7 @@ bool ath9k_csa_is_finished(struct ath_so
if (!vif || !vif->csa_active)
return false;
- if (!ieee80211_csa_is_complete(vif))
+ if (!ieee80211_beacon_cntdwn_is_complete(vif))
return false;
ieee80211_csa_finish(vif);
--- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
@@ -514,7 +514,7 @@ bool ath9k_htc_csa_is_finished(struct at
if (!vif || !vif->csa_active)
return false;
- if (!ieee80211_csa_is_complete(vif))
+ if (!ieee80211_beacon_cntdwn_is_complete(vif))
return false;
ieee80211_csa_finish(vif);
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1699,7 +1699,7 @@ static void mac80211_hwsim_beacon_tx(voi
rcu_dereference(vif->chanctx_conf)->def.chan);
}
- if (vif->csa_active && ieee80211_csa_is_complete(vif))
+ if (vif->csa_active && ieee80211_beacon_cntdwn_is_complete(vif))
ieee80211_csa_finish(vif);
}
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3807,7 +3807,7 @@ enum ieee80211_reconfig_type {
* decremented, and when they reach 1 the driver must call
* ieee80211_csa_finish(). Drivers which use ieee80211_beacon_get()
* get the csa counter decremented by mac80211, but must check if it is
- * 1 using ieee80211_csa_is_complete() after the beacon has been
+ * 1 using ieee80211_beacon_counter_is_complete() after the beacon has been
* transmitted and then call ieee80211_csa_finish().
* If the CSA count starts as zero or 1, this function will not be called,
* since there won't be any time to beacon before the switch anyway.
@@ -4831,14 +4831,14 @@ void ieee80211_tx_status_8023(struct iee
*/
void ieee80211_report_low_ack(struct ieee80211_sta *sta, u32 num_packets);
-#define IEEE80211_MAX_CSA_COUNTERS_NUM 2
+#define IEEE80211_MAX_CNTDWN_COUNTERS_NUM 2
/**
* struct ieee80211_mutable_offsets - mutable beacon offsets
* @tim_offset: position of TIM element
* @tim_length: size of TIM element
- * @csa_counter_offs: array of IEEE80211_MAX_CSA_COUNTERS_NUM offsets
- * to CSA counters. This array can contain zero values which
+ * @cntdwn_counter_offs: array of IEEE80211_MAX_CNTDWN_COUNTERS_NUM offsets
+ * to countdown counters. This array can contain zero values which
* should be ignored.
* @multiple_bssid_offset: position of the multiple bssid element
* @multiple_bssid_length: size of the multiple bssid element
@@ -4847,7 +4847,7 @@ struct ieee80211_mutable_offsets {
u16 tim_offset;
u16 tim_length;
- u16 csa_counter_offs[IEEE80211_MAX_CSA_COUNTERS_NUM];
+ u16 cntdwn_counter_offs[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
u16 multiple_bssid_offset;
u16 multiple_bssid_length;
};
@@ -4940,31 +4940,31 @@ static inline struct sk_buff *ieee80211_
}
/**
- * ieee80211_csa_update_counter - request mac80211 to decrement the csa counter
+ * ieee80211_beacon_update_cntdwn - request mac80211 to decrement the beacon countdown
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
*
- * The csa counter should be updated after each beacon transmission.
+ * The beacon counter should be updated after each beacon transmission.
* This function is called implicitly when
* ieee80211_beacon_get/ieee80211_beacon_get_tim are called, however if the
* beacon frames are generated by the device, the driver should call this
- * function after each beacon transmission to sync mac80211's csa counters.
+ * function after each beacon transmission to sync mac80211's beacon countdown.
*
- * Return: new csa counter value
+ * Return: new countdown value
*/
-u8 ieee80211_csa_update_counter(struct ieee80211_vif *vif);
+u8 ieee80211_beacon_update_cntdwn(struct ieee80211_vif *vif);
/**
- * ieee80211_csa_set_counter - request mac80211 to set csa counter
+ * ieee80211_beacon_set_cntdwn - request mac80211 to set beacon countdown
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
* @counter: the new value for the counter
*
- * The csa counter can be changed by the device, this API should be
+ * The beacon countdown can be changed by the device, this API should be
* used by the device driver to update csa counter in mac80211.
*
- * It should never be used together with ieee80211_csa_update_counter(),
+ * It should never be used together with ieee80211_beacon_update_cntdwn(),
* as it will cause a race condition around the counter value.
*/
-void ieee80211_csa_set_counter(struct ieee80211_vif *vif, u8 counter);
+void ieee80211_beacon_set_cntdwn(struct ieee80211_vif *vif, u8 counter);
/**
* ieee80211_csa_finish - notify mac80211 about channel switch
@@ -4977,13 +4977,12 @@ void ieee80211_csa_set_counter(struct ie
void ieee80211_csa_finish(struct ieee80211_vif *vif);
/**
- * ieee80211_csa_is_complete - find out if counters reached 1
+ * ieee80211_beacon_cntdwn_is_complete - find out if countdown reached 1
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
*
- * This function returns whether the channel switch counters reached zero.
+ * This function returns whether the countdown reached zero.
*/
-bool ieee80211_csa_is_complete(struct ieee80211_vif *vif);
-
+bool ieee80211_beacon_cntdwn_is_complete(struct ieee80211_vif *vif);
/**
* ieee80211_proberesp_get - retrieve a Probe Response template
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -878,9 +878,9 @@ static int ieee80211_set_probe_resp(stru
memcpy(new->data, resp, resp_len);
if (csa)
- memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
+ memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
csa->n_counter_offsets_presp *
- sizeof(new->csa_counter_offsets[0]));
+ sizeof(new->cntdwn_counter_offsets[0]));
rcu_assign_pointer(sdata->u.ap.probe_resp, new);
if (old)
@@ -1077,10 +1077,10 @@ static int ieee80211_assign_beacon(struc
&old->multiple_bssid);
if (csa) {
- new->csa_current_counter = csa->count;
- memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
+ new->cntdwn_current_counter = csa->count;
+ memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
csa->n_counter_offsets_beacon *
- sizeof(new->csa_counter_offsets[0]));
+ sizeof(new->cntdwn_counter_offsets[0]));
}
/* copy in head */
@@ -3395,9 +3395,9 @@ static int ieee80211_set_csa_beacon(stru
break;
if ((params->n_counter_offsets_beacon >
- IEEE80211_MAX_CSA_COUNTERS_NUM) ||
+ IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
(params->n_counter_offsets_presp >
- IEEE80211_MAX_CSA_COUNTERS_NUM))
+ IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
return -EINVAL;
csa.counter_offsets_beacon = params->counter_offsets_beacon;
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -145,9 +145,9 @@ ieee80211_ibss_build_presp(struct ieee80
*pos++ = csa_settings->block_tx ? 1 : 0;
*pos++ = ieee80211_frequency_to_channel(
csa_settings->chandef.chan->center_freq);
- presp->csa_counter_offsets[0] = (pos - presp->head);
+ presp->cntdwn_counter_offsets[0] = (pos - presp->head);
*pos++ = csa_settings->count;
- presp->csa_current_counter = csa_settings->count;
+ presp->cntdwn_current_counter = csa_settings->count;
}
/* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -260,8 +260,8 @@ struct beacon_data {
u8 *head, *tail;
int head_len, tail_len;
struct ieee80211_meshconf_ie *meshconf;
- u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
- u8 csa_current_counter;
+ u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
+ u8 cntdwn_current_counter;
struct cfg80211_multiple_bssid_data multiple_bssid;
u16 ema_index;
struct rcu_head rcu_head;
@@ -270,7 +270,7 @@ struct beacon_data {
struct probe_resp {
struct rcu_head rcu_head;
int len;
- u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
+ u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
u8 data[];
};
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1190,7 +1190,7 @@ int ieee80211_register_hw(struct ieee802
WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT;
}
- local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CSA_COUNTERS_NUM;
+ local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CNTDWN_COUNTERS_NUM;
/*
* We use the number of queues for feature tests (QoS, HT) internally
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -867,8 +867,8 @@ ieee80211_mesh_build_beacon(struct ieee8
*pos++ = 0x0;
*pos++ = ieee80211_frequency_to_channel(
csa->settings.chandef.chan->center_freq);
- bcn->csa_current_counter = csa->settings.count;
- bcn->csa_counter_offsets[0] = hdr_len + 6;
+ bcn->cntdwn_current_counter = csa->settings.count;
+ bcn->cntdwn_counter_offsets[0] = hdr_len + 6;
*pos++ = csa->settings.count;
*pos++ = WLAN_EID_CHAN_SWITCH_PARAM;
*pos++ = 6;
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -916,7 +916,7 @@ int ieee80211_mgmt_tx(struct wiphy *wiph
if (beacon)
for (i = 0; i < params->n_csa_offsets; i++)
data[params->csa_offsets[i]] =
- beacon->csa_current_counter;
+ beacon->cntdwn_current_counter;
rcu_read_unlock();
}
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4594,14 +4594,14 @@ static int ieee80211_beacon_add_tim(stru
return 0;
}
-static void ieee80211_set_csa(struct ieee80211_sub_if_data *sdata,
- struct beacon_data *beacon)
+static void ieee80211_set_beacon_cntdwn(struct ieee80211_sub_if_data *sdata,
+ struct beacon_data *beacon)
{
struct probe_resp *resp;
u8 *beacon_data;
size_t beacon_data_len;
int i;
- u8 count = beacon->csa_current_counter;
+ u8 count = beacon->cntdwn_current_counter;
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
@@ -4621,36 +4621,36 @@ static void ieee80211_set_csa(struct iee
}
rcu_read_lock();
- for (i = 0; i < IEEE80211_MAX_CSA_COUNTERS_NUM; ++i) {
+ for (i = 0; i < IEEE80211_MAX_CNTDWN_COUNTERS_NUM; ++i) {
resp = rcu_dereference(sdata->u.ap.probe_resp);
- if (beacon->csa_counter_offsets[i]) {
- if (WARN_ON_ONCE(beacon->csa_counter_offsets[i] >=
+ if (beacon->cntdwn_counter_offsets[i]) {
+ if (WARN_ON_ONCE(beacon->cntdwn_counter_offsets[i] >=
beacon_data_len)) {
rcu_read_unlock();
return;
}
- beacon_data[beacon->csa_counter_offsets[i]] = count;
+ beacon_data[beacon->cntdwn_counter_offsets[i]] = count;
}
if (sdata->vif.type == NL80211_IFTYPE_AP && resp)
- resp->data[resp->csa_counter_offsets[i]] = count;
+ resp->data[resp->cntdwn_counter_offsets[i]] = count;
}
rcu_read_unlock();
}
-static u8 __ieee80211_csa_update_counter(struct beacon_data *beacon)
+static u8 __ieee80211_beacon_update_cntdwn(struct beacon_data *beacon)
{
- beacon->csa_current_counter--;
+ beacon->cntdwn_current_counter--;
/* the counter should never reach 0 */
- WARN_ON_ONCE(!beacon->csa_current_counter);
+ WARN_ON_ONCE(!beacon->cntdwn_current_counter);
- return beacon->csa_current_counter;
+ return beacon->cntdwn_current_counter;
}
-u8 ieee80211_csa_update_counter(struct ieee80211_vif *vif)
+u8 ieee80211_beacon_update_cntdwn(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct beacon_data *beacon = NULL;
@@ -4668,15 +4668,15 @@ u8 ieee80211_csa_update_counter(struct i
if (!beacon)
goto unlock;
- count = __ieee80211_csa_update_counter(beacon);
+ count = __ieee80211_beacon_update_cntdwn(beacon);
unlock:
rcu_read_unlock();
return count;
}
-EXPORT_SYMBOL(ieee80211_csa_update_counter);
+EXPORT_SYMBOL(ieee80211_beacon_update_cntdwn);
-void ieee80211_csa_set_counter(struct ieee80211_vif *vif, u8 counter)
+void ieee80211_beacon_set_cntdwn(struct ieee80211_vif *vif, u8 counter)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct beacon_data *beacon = NULL;
@@ -4693,15 +4693,15 @@ void ieee80211_csa_set_counter(struct ie
if (!beacon)
goto unlock;
- if (counter < beacon->csa_current_counter)
- beacon->csa_current_counter = counter;
+ if (counter < beacon->cntdwn_current_counter)
+ beacon->cntdwn_current_counter = counter;
unlock:
rcu_read_unlock();
}
-EXPORT_SYMBOL(ieee80211_csa_set_counter);
+EXPORT_SYMBOL(ieee80211_beacon_set_cntdwn);
-bool ieee80211_csa_is_complete(struct ieee80211_vif *vif)
+bool ieee80211_beacon_cntdwn_is_complete(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct beacon_data *beacon = NULL;
@@ -4744,20 +4744,21 @@ bool ieee80211_csa_is_complete(struct ie
goto out;
}
- if (!beacon->csa_counter_offsets[0])
+ if (!beacon->cntdwn_counter_offsets[0])
goto out;
- if (WARN_ON_ONCE(beacon->csa_counter_offsets[0] > beacon_data_len))
+ if (WARN_ON_ONCE(beacon->cntdwn_counter_offsets[0] > beacon_data_len))
goto out;
- if (beacon_data[beacon->csa_counter_offsets[0]] == 1)
+ if (beacon_data[beacon->cntdwn_counter_offsets[0]] == 1)
ret = true;
+
out:
rcu_read_unlock();
return ret;
}
-EXPORT_SYMBOL(ieee80211_csa_is_complete);
+EXPORT_SYMBOL(ieee80211_beacon_cntdwn_is_complete);
static int ieee80211_beacon_protect(struct sk_buff *skb,
struct ieee80211_local *local,
@@ -4832,11 +4833,11 @@ __ieee80211_beacon_get(struct ieee80211_
beacon = rcu_dereference(ap->beacon);
if (beacon) {
int ema_len = 0;
- if (beacon->csa_counter_offsets[0]) {
+ if (beacon->cntdwn_counter_offsets[0]) {
if (!is_template)
- __ieee80211_csa_update_counter(beacon);
+ ieee80211_beacon_update_cntdwn(vif);
- ieee80211_set_csa(sdata, beacon);
+ ieee80211_set_beacon_cntdwn(sdata, beacon);
}
if (is_ema && beacon->multiple_bssid.cnt)
@@ -4896,11 +4897,11 @@ __ieee80211_beacon_get(struct ieee80211_
if (!beacon)
goto out;
- if (beacon->csa_counter_offsets[0]) {
+ if (beacon->cntdwn_counter_offsets[0]) {
if (!is_template)
- __ieee80211_csa_update_counter(beacon);
+ __ieee80211_beacon_update_cntdwn(beacon);
- ieee80211_set_csa(sdata, beacon);
+ ieee80211_set_beacon_cntdwn(sdata, beacon);
}
skb = dev_alloc_skb(local->tx_headroom + beacon->head_len +
@@ -4920,16 +4921,16 @@ __ieee80211_beacon_get(struct ieee80211_
if (!beacon)
goto out;
- if (beacon->csa_counter_offsets[0]) {
+ if (beacon->cntdwn_counter_offsets[0]) {
if (!is_template)
/* TODO: For mesh csa_counter is in TU, so
* decrementing it by one isn't correct, but
* for now we leave it consistent with overall
* mac80211's behavior.
*/
- __ieee80211_csa_update_counter(beacon);
+ __ieee80211_beacon_update_cntdwn(beacon);
- ieee80211_set_csa(sdata, beacon);
+ ieee80211_set_beacon_cntdwn(sdata, beacon);
}
if (ifmsh->sync_ops)
@@ -4961,13 +4962,13 @@ __ieee80211_beacon_get(struct ieee80211_
if (offs && beacon) {
int i;
- for (i = 0; i < IEEE80211_MAX_CSA_COUNTERS_NUM; i++) {
- u16 csa_off = beacon->csa_counter_offsets[i];
+ for (i = 0; i < IEEE80211_MAX_CNTDWN_COUNTERS_NUM; i++) {
+ u16 csa_off = beacon->cntdwn_counter_offsets[i];
if (!csa_off)
continue;
- offs->csa_counter_offs[i] = csa_off_base + csa_off;
+ offs->cntdwn_counter_offs[i] = csa_off_base + csa_off;
}
}
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