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-rw-r--r--net/mac80211/status.c742
1 files changed, 504 insertions, 238 deletions
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 3f0b96e1e02f..4b38aa0e902a 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -1,19 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2008-2010 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
+ * Copyright 2021-2025 Intel Corporation
*/
#include <linux/export.h>
#include <linux/etherdevice.h>
#include <net/mac80211.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
#include "ieee80211_i.h"
#include "rate.h"
#include "mesh.h"
@@ -52,7 +50,8 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
int ac;
if (info->flags & (IEEE80211_TX_CTL_NO_PS_BUFFER |
- IEEE80211_TX_CTL_AMPDU)) {
+ IEEE80211_TX_CTL_AMPDU |
+ IEEE80211_TX_CTL_HW_80211_ENCAP)) {
ieee80211_free_txskb(&local->hw, skb);
return;
}
@@ -69,11 +68,11 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
info->control.jiffies = jiffies;
info->control.vif = &sta->sdata->vif;
- info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING |
- IEEE80211_TX_INTFL_RETRANSMISSION;
+ info->control.flags |= IEEE80211_TX_INTCFL_NEED_TXPROCESSING;
+ info->flags |= IEEE80211_TX_INTFL_RETRANSMISSION;
info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS;
- sta->status_stats.filtered++;
+ sta->deflink.status_stats.filtered++;
/*
* Clear more-data bit on filtered frames, it might be set
@@ -185,20 +184,6 @@ static void ieee80211_check_pending_bar(struct sta_info *sta, u8 *addr, u8 tid)
static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
{
struct ieee80211_mgmt *mgmt = (void *) skb->data;
- struct ieee80211_local *local = sta->local;
- struct ieee80211_sub_if_data *sdata = sta->sdata;
- struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
-
- if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) {
- sta->status_stats.last_ack = jiffies;
- if (txinfo->status.is_valid_ack_signal) {
- sta->status_stats.last_ack_signal =
- (s8)txinfo->status.ack_signal;
- sta->status_stats.ack_signal_filled = true;
- ewma_avg_signal_add(&sta->status_stats.avg_ack_signal,
- -txinfo->status.ack_signal);
- }
- }
if (ieee80211_is_data_qos(mgmt->frame_control)) {
struct ieee80211_hdr *hdr = (void *) skb->data;
@@ -207,42 +192,6 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
ieee80211_check_pending_bar(sta, hdr->addr1, tid);
}
-
- if (ieee80211_is_action(mgmt->frame_control) &&
- !ieee80211_has_protected(mgmt->frame_control) &&
- mgmt->u.action.category == WLAN_CATEGORY_HT &&
- mgmt->u.action.u.ht_smps.action == WLAN_HT_ACTION_SMPS &&
- ieee80211_sdata_running(sdata)) {
- enum ieee80211_smps_mode smps_mode;
-
- switch (mgmt->u.action.u.ht_smps.smps_control) {
- case WLAN_HT_SMPS_CONTROL_DYNAMIC:
- smps_mode = IEEE80211_SMPS_DYNAMIC;
- break;
- case WLAN_HT_SMPS_CONTROL_STATIC:
- smps_mode = IEEE80211_SMPS_STATIC;
- break;
- case WLAN_HT_SMPS_CONTROL_DISABLED:
- default: /* shouldn't happen since we don't send that */
- smps_mode = IEEE80211_SMPS_OFF;
- break;
- }
-
- if (sdata->vif.type == NL80211_IFTYPE_STATION) {
- /*
- * This update looks racy, but isn't -- if we come
- * here we've definitely got a station that we're
- * talking to, and on a managed interface that can
- * only be the AP. And the only other place updating
- * this variable in managed mode is before association.
- */
- sdata->smps_mode = smps_mode;
- ieee80211_queue_work(&local->hw, &sdata->recalc_smps);
- } else if (sdata->vif.type == NL80211_IFTYPE_AP ||
- sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
- sta->known_smps_mode = smps_mode;
- }
- }
}
static void ieee80211_set_bar_pending(struct sta_info *sta, u8 tid, u16 ssn)
@@ -257,14 +206,26 @@ static void ieee80211_set_bar_pending(struct sta_info *sta, u8 tid, u16 ssn)
tid_tx->bar_pending = true;
}
-static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info)
+static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info,
+ struct ieee80211_tx_status *status)
{
+ struct ieee80211_rate_status *status_rate = NULL;
int len = sizeof(struct ieee80211_radiotap_header);
+ if (status && status->n_rates)
+ status_rate = &status->rates[status->n_rates - 1];
+
/* IEEE80211_RADIOTAP_RATE rate */
- if (info->status.rates[0].idx >= 0 &&
- !(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS |
- IEEE80211_TX_RC_VHT_MCS)))
+ if (status_rate && !(status_rate->rate_idx.flags &
+ (RATE_INFO_FLAGS_MCS |
+ RATE_INFO_FLAGS_DMG |
+ RATE_INFO_FLAGS_EDMG |
+ RATE_INFO_FLAGS_VHT_MCS |
+ RATE_INFO_FLAGS_HE_MCS)))
+ len += 2;
+ else if (info->status.rates[0].idx >= 0 &&
+ !(info->status.rates[0].flags &
+ (IEEE80211_TX_RC_MCS | IEEE80211_TX_RC_VHT_MCS)))
len += 2;
/* IEEE80211_RADIOTAP_TX_FLAGS */
@@ -275,7 +236,14 @@ static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info)
/* IEEE80211_RADIOTAP_MCS
* IEEE80211_RADIOTAP_VHT */
- if (info->status.rates[0].idx >= 0) {
+ if (status_rate) {
+ if (status_rate->rate_idx.flags & RATE_INFO_FLAGS_MCS)
+ len += 3;
+ else if (status_rate->rate_idx.flags & RATE_INFO_FLAGS_VHT_MCS)
+ len = ALIGN(len, 2) + 12;
+ else if (status_rate->rate_idx.flags & RATE_INFO_FLAGS_HE_MCS)
+ len = ALIGN(len, 2) + 12;
+ } else if (info->status.rates[0].idx >= 0) {
if (info->status.rates[0].flags & IEEE80211_TX_RC_MCS)
len += 3;
else if (info->status.rates[0].flags & IEEE80211_TX_RC_VHT_MCS)
@@ -287,23 +255,28 @@ static int ieee80211_tx_radiotap_len(struct ieee80211_tx_info *info)
static void
ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
- struct ieee80211_supported_band *sband,
struct sk_buff *skb, int retry_count,
- int rtap_len, int shift)
+ int rtap_len,
+ struct ieee80211_tx_status *status)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_radiotap_header *rthdr;
+ struct ieee80211_rate_status *status_rate = NULL;
unsigned char *pos;
+ u16 legacy_rate = 0;
u16 txflags;
+ if (status && status->n_rates)
+ status_rate = &status->rates[status->n_rates - 1];
+
rthdr = skb_push(skb, rtap_len);
memset(rthdr, 0, rtap_len);
rthdr->it_len = cpu_to_le16(rtap_len);
rthdr->it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
- (1 << IEEE80211_RADIOTAP_DATA_RETRIES));
+ cpu_to_le32(BIT(IEEE80211_RADIOTAP_TX_FLAGS) |
+ BIT(IEEE80211_RADIOTAP_DATA_RETRIES));
pos = (unsigned char *)(rthdr + 1);
/*
@@ -313,14 +286,28 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
*/
/* IEEE80211_RADIOTAP_RATE */
- if (info->status.rates[0].idx >= 0 &&
- !(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS |
- IEEE80211_TX_RC_VHT_MCS))) {
- u16 rate;
-
- rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE);
- rate = sband->bitrates[info->status.rates[0].idx].bitrate;
- *pos = DIV_ROUND_UP(rate, 5 * (1 << shift));
+
+ if (status_rate) {
+ if (!(status_rate->rate_idx.flags &
+ (RATE_INFO_FLAGS_MCS |
+ RATE_INFO_FLAGS_DMG |
+ RATE_INFO_FLAGS_EDMG |
+ RATE_INFO_FLAGS_VHT_MCS |
+ RATE_INFO_FLAGS_HE_MCS)))
+ legacy_rate = status_rate->rate_idx.legacy;
+ } else if (info->status.rates[0].idx >= 0 &&
+ !(info->status.rates[0].flags & (IEEE80211_TX_RC_MCS |
+ IEEE80211_TX_RC_VHT_MCS))) {
+ struct ieee80211_supported_band *sband;
+
+ sband = local->hw.wiphy->bands[info->band];
+ legacy_rate =
+ sband->bitrates[info->status.rates[0].idx].bitrate;
+ }
+
+ if (legacy_rate) {
+ rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_RATE));
+ *pos = DIV_ROUND_UP(legacy_rate, 5);
/* padding for tx flags */
pos += 2;
}
@@ -344,13 +331,149 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
*pos = retry_count;
pos++;
- if (info->status.rates[0].idx < 0)
+ if (status_rate && (status_rate->rate_idx.flags & RATE_INFO_FLAGS_MCS))
+ {
+ rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_MCS));
+ pos[0] = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
+ IEEE80211_RADIOTAP_MCS_HAVE_GI |
+ IEEE80211_RADIOTAP_MCS_HAVE_BW;
+ if (status_rate->rate_idx.flags & RATE_INFO_FLAGS_SHORT_GI)
+ pos[1] |= IEEE80211_RADIOTAP_MCS_SGI;
+ if (status_rate->rate_idx.bw == RATE_INFO_BW_40)
+ pos[1] |= IEEE80211_RADIOTAP_MCS_BW_40;
+ pos[2] = status_rate->rate_idx.mcs;
+ pos += 3;
+ } else if (status_rate && (status_rate->rate_idx.flags &
+ RATE_INFO_FLAGS_VHT_MCS))
+ {
+ u16 known = local->hw.radiotap_vht_details &
+ (IEEE80211_RADIOTAP_VHT_KNOWN_GI |
+ IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH);
+
+ rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_VHT));
+
+ /* required alignment from rthdr */
+ pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2);
+
+ /* u16 known - IEEE80211_RADIOTAP_VHT_KNOWN_* */
+ put_unaligned_le16(known, pos);
+ pos += 2;
+
+ /* u8 flags - IEEE80211_RADIOTAP_VHT_FLAG_* */
+ if (status_rate->rate_idx.flags & RATE_INFO_FLAGS_SHORT_GI)
+ *pos |= IEEE80211_RADIOTAP_VHT_FLAG_SGI;
+ pos++;
+
+ /* u8 bandwidth */
+ switch (status_rate->rate_idx.bw) {
+ case RATE_INFO_BW_160:
+ *pos = 11;
+ break;
+ case RATE_INFO_BW_80:
+ *pos = 4;
+ break;
+ case RATE_INFO_BW_40:
+ *pos = 1;
+ break;
+ default:
+ *pos = 0;
+ break;
+ }
+ pos++;
+
+ /* u8 mcs_nss[4] */
+ *pos = (status_rate->rate_idx.mcs << 4) |
+ status_rate->rate_idx.nss;
+ pos += 4;
+
+ /* u8 coding */
+ pos++;
+ /* u8 group_id */
+ pos++;
+ /* u16 partial_aid */
+ pos += 2;
+ } else if (status_rate && (status_rate->rate_idx.flags &
+ RATE_INFO_FLAGS_HE_MCS))
+ {
+ struct ieee80211_radiotap_he *he;
+
+ rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_HE));
+
+ /* required alignment from rthdr */
+ pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2);
+ he = (struct ieee80211_radiotap_he *)pos;
+
+ he->data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_SU |
+ IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN |
+ IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN |
+ IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
+
+ he->data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN);
+
+#define HE_PREP(f, val) le16_encode_bits(val, IEEE80211_RADIOTAP_HE_##f)
+
+ he->data6 |= HE_PREP(DATA6_NSTS, status_rate->rate_idx.nss);
+
+#define CHECK_GI(s) \
+ BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA5_GI_##s != \
+ (int)NL80211_RATE_INFO_HE_GI_##s)
+
+ CHECK_GI(0_8);
+ CHECK_GI(1_6);
+ CHECK_GI(3_2);
+
+ he->data3 |= HE_PREP(DATA3_DATA_MCS, status_rate->rate_idx.mcs);
+ he->data3 |= HE_PREP(DATA3_DATA_DCM, status_rate->rate_idx.he_dcm);
+
+ he->data5 |= HE_PREP(DATA5_GI, status_rate->rate_idx.he_gi);
+
+ switch (status_rate->rate_idx.bw) {
+ case RATE_INFO_BW_20:
+ he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_20MHZ);
+ break;
+ case RATE_INFO_BW_40:
+ he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_40MHZ);
+ break;
+ case RATE_INFO_BW_80:
+ he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_80MHZ);
+ break;
+ case RATE_INFO_BW_160:
+ he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_160MHZ);
+ break;
+ case RATE_INFO_BW_HE_RU:
+#define CHECK_RU_ALLOC(s) \
+ BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_##s##T != \
+ NL80211_RATE_INFO_HE_RU_ALLOC_##s + 4)
+
+ CHECK_RU_ALLOC(26);
+ CHECK_RU_ALLOC(52);
+ CHECK_RU_ALLOC(106);
+ CHECK_RU_ALLOC(242);
+ CHECK_RU_ALLOC(484);
+ CHECK_RU_ALLOC(996);
+ CHECK_RU_ALLOC(2x996);
+
+ he->data5 |= HE_PREP(DATA5_DATA_BW_RU_ALLOC,
+ status_rate->rate_idx.he_ru_alloc + 4);
+ break;
+ default:
+ WARN_ONCE(1, "Invalid SU BW %d\n", status_rate->rate_idx.bw);
+ }
+
+ pos += sizeof(struct ieee80211_radiotap_he);
+ }
+
+ if (status_rate || info->status.rates[0].idx < 0)
return;
/* IEEE80211_RADIOTAP_MCS
* IEEE80211_RADIOTAP_VHT */
if (info->status.rates[0].flags & IEEE80211_TX_RC_MCS) {
- rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
+ rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_MCS));
pos[0] = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
IEEE80211_RADIOTAP_MCS_HAVE_GI |
IEEE80211_RADIOTAP_MCS_HAVE_BW;
@@ -367,7 +490,7 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
(IEEE80211_RADIOTAP_VHT_KNOWN_GI |
IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH);
- rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT);
+ rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_VHT));
/* required alignment from rthdr */
pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2);
@@ -449,6 +572,7 @@ static struct ieee80211_sub_if_data *
ieee80211_sdata_from_skb(struct ieee80211_local *local, struct sk_buff *skb)
{
struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hdr *hdr = (void *)skb->data;
if (skb->dev) {
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
@@ -462,18 +586,36 @@ ieee80211_sdata_from_skb(struct ieee80211_local *local, struct sk_buff *skb)
return NULL;
}
- return rcu_dereference(local->p2p_sdata);
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_P2P_DEVICE:
+ break;
+ case NL80211_IFTYPE_NAN:
+ if (sdata->u.nan.started)
+ break;
+ fallthrough;
+ default:
+ continue;
+ }
+
+ if (ether_addr_equal(sdata->vif.addr, hdr->addr2))
+ return sdata;
+ }
+
+ return NULL;
}
static void ieee80211_report_ack_skb(struct ieee80211_local *local,
- struct ieee80211_tx_info *info,
- bool acked, bool dropped)
+ struct sk_buff *orig_skb,
+ bool acked, bool dropped,
+ ktime_t ack_hwtstamp)
{
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(orig_skb);
struct sk_buff *skb;
unsigned long flags;
spin_lock_irqsave(&local->ack_status_lock, flags);
- skb = idr_remove(&local->ack_status_frames, info->ack_frame_id);
+ skb = idr_remove(&local->ack_status_frames, info->status_data);
spin_unlock_irqrestore(&local->ack_status_lock, flags);
if (!skb)
@@ -483,21 +625,46 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
u64 cookie = IEEE80211_SKB_CB(skb)->ack.cookie;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_hdr *hdr = (void *)skb->data;
+ bool is_valid_ack_signal =
+ !!(info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID);
+ struct cfg80211_tx_status status = {
+ .cookie = cookie,
+ .buf = skb->data,
+ .len = skb->len,
+ .ack = acked,
+ };
+
+ if (ieee80211_is_timing_measurement(orig_skb) ||
+ ieee80211_is_ftm(orig_skb)) {
+ status.tx_tstamp =
+ ktime_to_ns(skb_hwtstamps(orig_skb)->hwtstamp);
+ status.ack_tstamp = ktime_to_ns(ack_hwtstamp);
+ }
rcu_read_lock();
sdata = ieee80211_sdata_from_skb(local, skb);
if (sdata) {
- if (ieee80211_is_nullfunc(hdr->frame_control) ||
- ieee80211_is_qos_nullfunc(hdr->frame_control))
+ if (skb->protocol == sdata->control_port_protocol ||
+ skb->protocol == cpu_to_be16(ETH_P_PREAUTH))
+ cfg80211_control_port_tx_status(&sdata->wdev,
+ cookie,
+ skb->data,
+ skb->len,
+ acked,
+ GFP_ATOMIC);
+ else if (ieee80211_is_any_nullfunc(hdr->frame_control))
cfg80211_probe_status(sdata->dev, hdr->addr1,
cookie, acked,
info->status.ack_signal,
- info->status.is_valid_ack_signal,
+ is_valid_ack_signal,
GFP_ATOMIC);
+ else if (ieee80211_is_mgmt(hdr->frame_control))
+ cfg80211_mgmt_tx_status_ext(&sdata->wdev,
+ &status,
+ GFP_ATOMIC);
else
- cfg80211_mgmt_tx_status(&sdata->wdev, cookie,
- skb->data, skb->len,
- acked, GFP_ATOMIC);
+ pr_warn("Unknown status report in ack skb\n");
+
}
rcu_read_unlock();
@@ -510,16 +677,84 @@ static void ieee80211_report_ack_skb(struct ieee80211_local *local,
}
}
+static void ieee80211_handle_smps_status(struct ieee80211_sub_if_data *sdata,
+ bool acked, u16 status_data)
+{
+ u16 sub_data = u16_get_bits(status_data, IEEE80211_STATUS_SUBDATA_MASK);
+ enum ieee80211_smps_mode smps_mode = sub_data & 3;
+ int link_id = (sub_data >> 2);
+ struct ieee80211_link_data *link;
+
+ if (!sdata || !ieee80211_sdata_running(sdata))
+ return;
+
+ if (!acked)
+ return;
+
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ return;
+
+ if (WARN(link_id >= ARRAY_SIZE(sdata->link),
+ "bad SMPS status link: %d\n", link_id))
+ return;
+
+ link = rcu_dereference(sdata->link[link_id]);
+ if (!link)
+ return;
+
+ /*
+ * This update looks racy, but isn't, the only other place
+ * updating this variable is in managed mode before assoc,
+ * and we have to be associated to have a status from the
+ * action frame TX, since we cannot send it while we're not
+ * associated yet.
+ */
+ link->smps_mode = smps_mode;
+ wiphy_work_queue(sdata->local->hw.wiphy, &link->u.mgd.recalc_smps);
+}
+
+static void
+ieee80211_handle_teardown_ttlm_status(struct ieee80211_sub_if_data *sdata,
+ bool acked)
+{
+ if (!sdata || !ieee80211_sdata_running(sdata))
+ return;
+
+ if (!acked)
+ return;
+
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ return;
+
+ wiphy_work_queue(sdata->local->hw.wiphy,
+ &sdata->u.mgd.teardown_ttlm_work);
+}
+
static void ieee80211_report_used_skb(struct ieee80211_local *local,
- struct sk_buff *skb, bool dropped)
+ struct sk_buff *skb, bool dropped,
+ ktime_t ack_hwtstamp)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ u16 tx_time_est = ieee80211_info_get_tx_time_est(info);
struct ieee80211_hdr *hdr = (void *)skb->data;
bool acked = info->flags & IEEE80211_TX_STAT_ACK;
if (dropped)
acked = false;
+ if (tx_time_est) {
+ struct sta_info *sta;
+
+ rcu_read_lock();
+
+ sta = sta_info_get_by_addrs(local, hdr->addr1, hdr->addr2);
+ ieee80211_sta_update_pending_airtime(local, sta,
+ skb_get_queue_mapping(skb),
+ tx_time_est,
+ true);
+ rcu_read_unlock();
+ }
+
if (info->flags & IEEE80211_TX_INTFL_MLME_CONN_TX) {
struct ieee80211_sub_if_data *sdata;
@@ -529,25 +764,54 @@ static void ieee80211_report_used_skb(struct ieee80211_local *local,
if (!sdata) {
skb->dev = NULL;
- } else {
- unsigned int hdr_size =
- ieee80211_hdrlen(hdr->frame_control);
-
+ } else if (!dropped) {
/* Check to see if packet is a TDLS teardown packet */
if (ieee80211_is_data(hdr->frame_control) &&
- (ieee80211_get_tdls_action(skb, hdr_size) ==
- WLAN_TDLS_TEARDOWN))
+ (ieee80211_get_tdls_action(skb) ==
+ WLAN_TDLS_TEARDOWN)) {
ieee80211_tdls_td_tx_handle(local, sdata, skb,
info->flags);
- else
+ } else if (ieee80211_s1g_is_twt_setup(skb)) {
+ if (!acked) {
+ struct sk_buff *qskb;
+
+ qskb = skb_clone(skb, GFP_ATOMIC);
+ if (qskb) {
+ skb_queue_tail(&sdata->status_queue,
+ qskb);
+ wiphy_work_queue(local->hw.wiphy,
+ &sdata->work);
+ }
+ }
+ } else {
ieee80211_mgd_conn_tx_status(sdata,
hdr->frame_control,
acked);
+ }
}
rcu_read_unlock();
- } else if (info->ack_frame_id) {
- ieee80211_report_ack_skb(local, info, acked, dropped);
+ } else if (info->status_data_idr) {
+ ieee80211_report_ack_skb(local, skb, acked, dropped,
+ ack_hwtstamp);
+ } else if (info->status_data) {
+ struct ieee80211_sub_if_data *sdata;
+
+ rcu_read_lock();
+
+ sdata = ieee80211_sdata_from_skb(local, skb);
+
+ switch (u16_get_bits(info->status_data,
+ IEEE80211_STATUS_TYPE_MASK)) {
+ case IEEE80211_STATUS_TYPE_SMPS:
+ ieee80211_handle_smps_status(sdata, acked,
+ info->status_data);
+ break;
+ case IEEE80211_STATUS_TYPE_NEG_TTLM:
+ ieee80211_handle_teardown_ttlm_status(sdata, acked);
+ break;
+ }
+ rcu_read_unlock();
}
if (!dropped && skb->destructor) {
@@ -571,12 +835,15 @@ static void ieee80211_report_used_skb(struct ieee80211_local *local,
* - current throughput (higher value for higher tpt)?
*/
#define STA_LOST_PKT_THRESHOLD 50
-#define STA_LOST_TDLS_PKT_THRESHOLD 10
+#define STA_LOST_PKT_TIME HZ /* 1 sec since last ACK */
#define STA_LOST_TDLS_PKT_TIME (10*HZ) /* 10secs since last ACK */
static void ieee80211_lost_packet(struct sta_info *sta,
struct ieee80211_tx_info *info)
{
+ unsigned long pkt_time = STA_LOST_PKT_TIME;
+ unsigned int pkt_thr = STA_LOST_PKT_THRESHOLD;
+
/* If driver relies on its own algorithm for station kickout, skip
* mac80211 packet loss mechanism.
*/
@@ -588,34 +855,33 @@ static void ieee80211_lost_packet(struct sta_info *sta,
!(info->flags & IEEE80211_TX_STAT_AMPDU))
return;
- sta->status_stats.lost_packets++;
- if (!sta->sta.tdls &&
- sta->status_stats.lost_packets < STA_LOST_PKT_THRESHOLD)
- return;
+ sta->deflink.status_stats.lost_packets++;
+ if (sta->sta.tdls) {
+ pkt_time = STA_LOST_TDLS_PKT_TIME;
+ pkt_thr = STA_LOST_PKT_THRESHOLD;
+ }
/*
- * If we're in TDLS mode, make sure that all STA_LOST_TDLS_PKT_THRESHOLD
+ * If we're in TDLS mode, make sure that all STA_LOST_PKT_THRESHOLD
* of the last packets were lost, and that no ACK was received in the
* last STA_LOST_TDLS_PKT_TIME ms, before triggering the CQM packet-loss
* mechanism.
+ * For non-TDLS, use STA_LOST_PKT_THRESHOLD and STA_LOST_PKT_TIME
*/
- if (sta->sta.tdls &&
- (sta->status_stats.lost_packets < STA_LOST_TDLS_PKT_THRESHOLD ||
- time_before(jiffies,
- sta->status_stats.last_tdls_pkt_time +
- STA_LOST_TDLS_PKT_TIME)))
+ if (sta->deflink.status_stats.lost_packets < pkt_thr ||
+ !time_after(jiffies, sta->deflink.status_stats.last_pkt_time + pkt_time))
return;
cfg80211_cqm_pktloss_notify(sta->sdata->dev, sta->sta.addr,
- sta->status_stats.lost_packets, GFP_ATOMIC);
- sta->status_stats.lost_packets = 0;
+ sta->deflink.status_stats.lost_packets,
+ GFP_ATOMIC);
+ sta->deflink.status_stats.lost_packets = 0;
}
static int ieee80211_tx_get_rates(struct ieee80211_hw *hw,
struct ieee80211_tx_info *info,
int *retry_count)
{
- int rates_idx = -1;
int count = -1;
int i;
@@ -637,18 +903,16 @@ static int ieee80211_tx_get_rates(struct ieee80211_hw *hw,
count += info->status.rates[i].count;
}
- rates_idx = i - 1;
if (count < 0)
count = 0;
*retry_count = count;
- return rates_idx;
+ return i - 1;
}
void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_supported_band *sband,
- int retry_count, int shift, bool send_to_cooked)
+ int retry_count, struct ieee80211_tx_status *status)
{
struct sk_buff *skb2;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -657,14 +921,14 @@ void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
int rtap_len;
/* send frame to monitor interfaces now */
- rtap_len = ieee80211_tx_radiotap_len(info);
+ rtap_len = ieee80211_tx_radiotap_len(info, status);
if (WARN_ON_ONCE(skb_headroom(skb) < rtap_len)) {
pr_err("ieee80211_tx_status: headroom too small\n");
dev_kfree_skb(skb);
return;
}
- ieee80211_add_tx_radiotap_header(local, sband, skb, retry_count,
- rtap_len, shift);
+ ieee80211_add_tx_radiotap_header(local, skb, retry_count,
+ rtap_len, status);
/* XXX: is this sufficient for BPF? */
skb_reset_mac_header(skb);
@@ -679,8 +943,7 @@ void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
if (!ieee80211_sdata_running(sdata))
continue;
- if ((sdata->u.mntr.flags & MONITOR_FLAG_COOK_FRAMES) &&
- !send_to_cooked)
+ if (sdata->u.mntr.flags & MONITOR_FLAG_SKIP_TX)
continue;
if (prev_dev) {
@@ -704,7 +967,8 @@ void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
}
static void __ieee80211_tx_status(struct ieee80211_hw *hw,
- struct ieee80211_tx_status *status)
+ struct ieee80211_tx_status *status,
+ int rates_idx, int retry_count)
{
struct sk_buff *skb = status->skb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -712,28 +976,22 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw,
struct ieee80211_tx_info *info = status->info;
struct sta_info *sta;
__le16 fc;
- struct ieee80211_supported_band *sband;
- int retry_count;
- int rates_idx;
- bool send_to_cooked;
bool acked;
+ bool noack_success;
struct ieee80211_bar *bar;
- int shift = 0;
int tid = IEEE80211_NUM_TIDS;
- rates_idx = ieee80211_tx_get_rates(hw, info, &retry_count);
-
- sband = local->hw.wiphy->bands[info->band];
fc = hdr->frame_control;
if (status->sta) {
sta = container_of(status->sta, struct sta_info, sta);
- shift = ieee80211_vif_get_shift(&sta->sdata->vif);
if (info->flags & IEEE80211_TX_STATUS_EOSP)
clear_sta_flag(sta, WLAN_STA_SP);
acked = !!(info->flags & IEEE80211_TX_STAT_ACK);
+ noack_success = !!(info->flags &
+ IEEE80211_TX_STAT_NOACK_TRANSMITTED);
/* mesh Peer Service Period support */
if (ieee80211_vif_is_mesh(&sta->sdata->vif) &&
@@ -741,19 +999,10 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw,
ieee80211_mpsp_trigger_process(
ieee80211_get_qos_ctl(hdr), sta, true, acked);
- if (!acked && test_sta_flag(sta, WLAN_STA_PS_STA)) {
- /*
- * The STA is in power save mode, so assume
- * that this TX packet failed because of that.
- */
- ieee80211_handle_filtered_frame(local, sta, skb);
- return;
- }
-
if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL) &&
(ieee80211_is_data(hdr->frame_control)) &&
(rates_idx != -1))
- sta->tx_stats.last_rate =
+ sta->deflink.tx_stats.last_rate =
info->status.rates[rates_idx];
if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) &&
@@ -797,45 +1046,17 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw,
if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
ieee80211_handle_filtered_frame(local, sta, skb);
return;
- } else {
- if (!acked)
- sta->status_stats.retry_failed++;
- sta->status_stats.retry_count += retry_count;
-
- if (ieee80211_is_data_present(fc)) {
- if (!acked)
- sta->status_stats.msdu_failed[tid]++;
+ } else if (ieee80211_is_data_present(fc)) {
+ if (!acked && !noack_success)
+ sta->deflink.status_stats.msdu_failed[tid]++;
- sta->status_stats.msdu_retries[tid] +=
- retry_count;
- }
+ sta->deflink.status_stats.msdu_retries[tid] +=
+ retry_count;
}
- rate_control_tx_status(local, sband, status);
- if (ieee80211_vif_is_mesh(&sta->sdata->vif))
- ieee80211s_update_metric(local, sta, status);
-
if (!(info->flags & IEEE80211_TX_CTL_INJECTED) && acked)
ieee80211_frame_acked(sta, skb);
- if ((sta->sdata->vif.type == NL80211_IFTYPE_STATION) &&
- ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS))
- ieee80211_sta_tx_notify(sta->sdata, (void *) skb->data,
- acked, info->status.tx_time);
-
- if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) {
- if (info->flags & IEEE80211_TX_STAT_ACK) {
- if (sta->status_stats.lost_packets)
- sta->status_stats.lost_packets = 0;
-
- /* Track when last TDLS packet was ACKed */
- if (test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH))
- sta->status_stats.last_tdls_pkt_time =
- jiffies;
- } else {
- ieee80211_lost_packet(sta, info);
- }
- }
}
/* SNMP counters
@@ -867,41 +1088,33 @@ static void __ieee80211_tx_status(struct ieee80211_hw *hw,
I802_DEBUG_INC(local->dot11FailedCount);
}
- if (ieee80211_is_nullfunc(fc) && ieee80211_has_pm(fc) &&
+ if (ieee80211_is_any_nullfunc(fc) &&
+ ieee80211_has_pm(fc) &&
ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS) &&
!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
local->ps_sdata && !(local->scanning)) {
- if (info->flags & IEEE80211_TX_STAT_ACK) {
+ if (info->flags & IEEE80211_TX_STAT_ACK)
local->ps_sdata->u.mgd.flags |=
IEEE80211_STA_NULLFUNC_ACKED;
- } else
- mod_timer(&local->dynamic_ps_timer, jiffies +
- msecs_to_jiffies(10));
+ mod_timer(&local->dynamic_ps_timer,
+ jiffies + msecs_to_jiffies(10));
}
- ieee80211_report_used_skb(local, skb, false);
-
- /* this was a transmitted frame, but now we want to reuse it */
- skb_orphan(skb);
-
- /* Need to make a copy before skb->cb gets cleared */
- send_to_cooked = !!(info->flags & IEEE80211_TX_CTL_INJECTED) ||
- !(ieee80211_is_data(fc));
+ ieee80211_report_used_skb(local, skb, false, status->ack_hwtstamp);
/*
* This is a bit racy but we can avoid a lot of work
* with this test...
*/
- if (!local->monitors && (!send_to_cooked || !local->cooked_mntrs)) {
+ if (local->tx_mntrs)
+ ieee80211_tx_monitor(local, skb, retry_count, status);
+ else if (status->free_list)
+ list_add_tail(&skb->list, status->free_list);
+ else
dev_kfree_skb(skb);
- return;
- }
-
- /* send to monitor interfaces */
- ieee80211_tx_monitor(local, skb, sband, retry_count, shift, send_to_cooked);
}
-void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
+void ieee80211_tx_status_skb(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_local *local = hw_to_local(hw);
@@ -909,24 +1122,18 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
.skb = skb,
.info = IEEE80211_SKB_CB(skb),
};
- struct rhlist_head *tmp;
struct sta_info *sta;
rcu_read_lock();
- for_each_sta_info(local, hdr->addr1, sta, tmp) {
- /* skip wrong virtual interface */
- if (!ether_addr_equal(hdr->addr2, sta->sdata->vif.addr))
- continue;
-
+ sta = sta_info_get_by_addrs(local, hdr->addr1, hdr->addr2);
+ if (sta)
status.sta = &sta->sta;
- break;
- }
- __ieee80211_tx_status(hw, &status);
+ ieee80211_tx_status_ext(hw, &status);
rcu_read_unlock();
}
-EXPORT_SYMBOL(ieee80211_tx_status);
+EXPORT_SYMBOL(ieee80211_tx_status_skb);
void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
struct ieee80211_tx_status *status)
@@ -934,52 +1141,100 @@ void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_tx_info *info = status->info;
struct ieee80211_sta *pubsta = status->sta;
- struct ieee80211_supported_band *sband;
- int retry_count;
- bool acked, noack_success;
+ struct sk_buff *skb = status->skb;
+ struct sta_info *sta = NULL;
+ int rates_idx, retry_count;
+ bool acked, noack_success, ack_signal_valid;
+ u16 tx_time_est;
- if (status->skb)
- return __ieee80211_tx_status(hw, status);
+ if (pubsta) {
+ sta = container_of(pubsta, struct sta_info, sta);
- if (!status->sta)
- return;
+ if (status->n_rates)
+ sta->deflink.tx_stats.last_rate_info =
+ status->rates[status->n_rates - 1].rate_idx;
+ }
- ieee80211_tx_get_rates(hw, info, &retry_count);
+ if (skb && (tx_time_est =
+ ieee80211_info_get_tx_time_est(IEEE80211_SKB_CB(skb))) > 0) {
+ /* Do this here to avoid the expensive lookup of the sta
+ * in ieee80211_report_used_skb().
+ */
+ ieee80211_sta_update_pending_airtime(local, sta,
+ skb_get_queue_mapping(skb),
+ tx_time_est,
+ true);
+ ieee80211_info_set_tx_time_est(IEEE80211_SKB_CB(skb), 0);
+ }
+
+ if (!status->info)
+ goto free;
- sband = hw->wiphy->bands[info->band];
+ rates_idx = ieee80211_tx_get_rates(hw, info, &retry_count);
acked = !!(info->flags & IEEE80211_TX_STAT_ACK);
noack_success = !!(info->flags & IEEE80211_TX_STAT_NOACK_TRANSMITTED);
+ ack_signal_valid =
+ !!(info->status.flags & IEEE80211_TX_STATUS_ACK_SIGNAL_VALID);
if (pubsta) {
- struct sta_info *sta;
-
- sta = container_of(pubsta, struct sta_info, sta);
+ struct ieee80211_sub_if_data *sdata = sta->sdata;
- if (!acked)
- sta->status_stats.retry_failed++;
- sta->status_stats.retry_count += retry_count;
+ if (!acked && !noack_success)
+ sta->deflink.status_stats.retry_failed++;
+ sta->deflink.status_stats.retry_count += retry_count;
- if (acked) {
- sta->status_stats.last_ack = jiffies;
-
- if (sta->status_stats.lost_packets)
- sta->status_stats.lost_packets = 0;
-
- /* Track when last TDLS packet was ACKed */
- if (test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH))
- sta->status_stats.last_tdls_pkt_time = jiffies;
- } else if (test_sta_flag(sta, WLAN_STA_PS_STA)) {
- return;
- } else {
- ieee80211_lost_packet(sta, info);
+ if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) {
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ skb && !(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP))
+ ieee80211_sta_tx_notify(sdata, (void *) skb->data,
+ acked, info->status.tx_time);
+
+ if (acked) {
+ sta->deflink.status_stats.last_ack = jiffies;
+
+ if (sta->deflink.status_stats.lost_packets)
+ sta->deflink.status_stats.lost_packets = 0;
+
+ /* Track when last packet was ACKed */
+ sta->deflink.status_stats.last_pkt_time = jiffies;
+
+ /* Reset connection monitor */
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ unlikely(sdata->u.mgd.probe_send_count > 0))
+ sdata->u.mgd.probe_send_count = 0;
+
+ if (ack_signal_valid) {
+ sta->deflink.status_stats.last_ack_signal =
+ (s8)info->status.ack_signal;
+ sta->deflink.status_stats.ack_signal_filled = true;
+ ewma_avg_signal_add(&sta->deflink.status_stats.avg_ack_signal,
+ -info->status.ack_signal);
+ }
+ } else if (test_sta_flag(sta, WLAN_STA_PS_STA)) {
+ /*
+ * The STA is in power save mode, so assume
+ * that this TX packet failed because of that.
+ */
+ if (skb)
+ ieee80211_handle_filtered_frame(local, sta, skb);
+ return;
+ } else if (noack_success) {
+ /* nothing to do here, do not account as lost */
+ } else {
+ ieee80211_lost_packet(sta, info);
+ }
}
- rate_control_tx_status(local, sband, status);
+ rate_control_tx_status(local, status);
if (ieee80211_vif_is_mesh(&sta->sdata->vif))
ieee80211s_update_metric(local, sta, status);
}
+ if (skb && !(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP))
+ return __ieee80211_tx_status(hw, status, rates_idx,
+ retry_count);
+
if (acked || noack_success) {
I802_DEBUG_INC(local->dot11TransmittedFrameCount);
if (!pubsta)
@@ -991,6 +1246,16 @@ void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
} else {
I802_DEBUG_INC(local->dot11FailedCount);
}
+
+free:
+ if (!skb)
+ return;
+
+ ieee80211_report_used_skb(local, skb, false, status->ack_hwtstamp);
+ if (status->free_list)
+ list_add_tail(&skb->list, status->free_list);
+ else
+ dev_kfree_skb(skb);
}
EXPORT_SYMBOL(ieee80211_tx_status_ext);
@@ -999,17 +1264,16 @@ void ieee80211_tx_rate_update(struct ieee80211_hw *hw,
struct ieee80211_tx_info *info)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_supported_band *sband = hw->wiphy->bands[info->band];
struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
struct ieee80211_tx_status status = {
.info = info,
.sta = pubsta,
};
- rate_control_tx_status(local, sband, &status);
+ rate_control_tx_status(local, &status);
if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
- sta->tx_stats.last_rate = info->status.rates[0];
+ sta->deflink.tx_stats.last_rate = info->status.rates[0];
}
EXPORT_SYMBOL(ieee80211_tx_rate_update);
@@ -1024,8 +1288,9 @@ EXPORT_SYMBOL(ieee80211_report_low_ack);
void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct ieee80211_local *local = hw_to_local(hw);
+ ktime_t kt = ktime_set(0, 0);
- ieee80211_report_used_skb(local, skb, true);
+ ieee80211_report_used_skb(local, skb, true, kt);
dev_kfree_skb_any(skb);
}
EXPORT_SYMBOL(ieee80211_free_txskb);
@@ -1038,3 +1303,4 @@ void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
while ((skb = __skb_dequeue(skbs)))
ieee80211_free_txskb(hw, skb);
}
+EXPORT_SYMBOL(ieee80211_purge_tx_queue);
generated by cgit (git 2.34.1) at 2025-12-24 22:24:35 +0000