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-rw-r--r--drivers/net/wireless/ath/ath10k/core.h6
-rw-r--r--drivers/net/wireless/ath/ath10k/htt_rx.c5
-rw-r--r--drivers/net/wireless/ath/ath10k/mac.c160
-rw-r--r--drivers/net/wireless/ath/ath10k/wmi.c23
-rw-r--r--drivers/net/wireless/ath/ath10k/wmi.h1
5 files changed, 182 insertions, 13 deletions
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index afbc7449b137..0b88d554f95f 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -310,6 +310,11 @@ enum ath10k_fw_features {
ATH10K_FW_FEATURE_COUNT,
};
+enum ath10k_dev_flags {
+ /* Indicates that ath10k device is during CAC phase of DFS */
+ ATH10K_CAC_RUNNING,
+};
+
struct ath10k {
struct ath_common ath_common;
struct ieee80211_hw *hw;
@@ -403,6 +408,7 @@ struct ath10k {
bool monitor_enabled;
bool monitor_present;
unsigned int filter_flags;
+ unsigned long dev_flags;
struct wmi_pdev_set_wmm_params_arg wmm_params;
struct completion install_key_done;
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 0335218ad579..fcb534f2f28f 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -945,6 +945,11 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
continue;
}
+ if (test_bit(ATH10K_CAC_RUNNING, &htt->ar->dev_flags)) {
+ ath10k_htt_rx_free_msdu_chain(msdu_head);
+ continue;
+ }
+
/* FIXME: we do not support chaining yet.
* this needs investigation */
if (msdu_chaining) {
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index c95a3985209d..b70a3b2f9f46 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -463,6 +463,10 @@ static int ath10k_vdev_start(struct ath10k_vif *arvif)
arg.ssid = arvif->u.ap.ssid;
arg.ssid_len = arvif->u.ap.ssid_len;
arg.hidden_ssid = arvif->u.ap.hidden_ssid;
+
+ /* For now allow DFS for AP mode */
+ arg.channel.chan_radar =
+ !!(channel->flags & IEEE80211_CHAN_RADAR);
} else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
arg.ssid = arvif->vif->bss_conf.ssid;
arg.ssid_len = arvif->vif->bss_conf.ssid_len;
@@ -532,6 +536,8 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
/* TODO setup this dynamically, what in case we
don't have any vifs? */
arg.channel.mode = chan_to_phymode(&ar->hw->conf.chandef);
+ arg.channel.chan_radar =
+ !!(channel->flags & IEEE80211_CHAN_RADAR);
arg.channel.min_power = 0;
arg.channel.max_power = channel->max_power * 2;
@@ -666,6 +672,107 @@ static int ath10k_monitor_destroy(struct ath10k *ar)
return ret;
}
+static int ath10k_start_cac(struct ath10k *ar)
+{
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+
+ ret = ath10k_monitor_create(ar);
+ if (ret) {
+ clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+ return ret;
+ }
+
+ ret = ath10k_monitor_start(ar, ar->monitor_vdev_id);
+ if (ret) {
+ clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+ ath10k_monitor_destroy(ar);
+ return ret;
+ }
+
+ ath10k_dbg(ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
+ ar->monitor_vdev_id);
+
+ return 0;
+}
+
+static int ath10k_stop_cac(struct ath10k *ar)
+{
+ lockdep_assert_held(&ar->conf_mutex);
+
+ /* CAC is not running - do nothing */
+ if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
+ return 0;
+
+ ath10k_monitor_stop(ar);
+ ath10k_monitor_destroy(ar);
+ clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
+
+ ath10k_dbg(ATH10K_DBG_MAC, "mac cac finished\n");
+
+ return 0;
+}
+
+static const char *ath10k_dfs_state(enum nl80211_dfs_state dfs_state)
+{
+ switch (dfs_state) {
+ case NL80211_DFS_USABLE:
+ return "USABLE";
+ case NL80211_DFS_UNAVAILABLE:
+ return "UNAVAILABLE";
+ case NL80211_DFS_AVAILABLE:
+ return "AVAILABLE";
+ default:
+ WARN_ON(1);
+ return "bug";
+ }
+}
+
+static void ath10k_config_radar_detection(struct ath10k *ar)
+{
+ struct ieee80211_channel *chan = ar->hw->conf.chandef.chan;
+ bool radar = ar->hw->conf.radar_enabled;
+ bool chan_radar = !!(chan->flags & IEEE80211_CHAN_RADAR);
+ enum nl80211_dfs_state dfs_state = chan->dfs_state;
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ ath10k_dbg(ATH10K_DBG_MAC,
+ "mac radar config update: chan %dMHz radar %d chan radar %d chan state %s\n",
+ chan->center_freq, radar, chan_radar,
+ ath10k_dfs_state(dfs_state));
+
+ /*
+ * It's safe to call it even if CAC is not started.
+ * This call here guarantees changing channel, etc. will stop CAC.
+ */
+ ath10k_stop_cac(ar);
+
+ if (!radar)
+ return;
+
+ if (!chan_radar)
+ return;
+
+ if (dfs_state != NL80211_DFS_USABLE)
+ return;
+
+ ret = ath10k_start_cac(ar);
+ if (ret) {
+ /*
+ * Not possible to start CAC on current channel so starting
+ * radiation is not allowed, make this channel DFS_UNAVAILABLE
+ * by indicating that radar was detected.
+ */
+ ath10k_warn("failed to start CAC (%d)\n", ret);
+ ieee80211_radar_detected(ar->hw);
+ }
+}
+
static void ath10k_control_beaconing(struct ath10k_vif *arvif,
struct ieee80211_bss_conf *info)
{
@@ -1375,6 +1482,9 @@ static int ath10k_update_channel_list(struct ath10k *ar)
ch->ht40plus =
!(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);
+ ch->chan_radar =
+ !!(channel->flags & IEEE80211_CHAN_RADAR);
+
passive = channel->flags & IEEE80211_CHAN_PASSIVE_SCAN;
ch->passive = passive;
@@ -1921,6 +2031,7 @@ void ath10k_halt(struct ath10k *ar)
{
lockdep_assert_held(&ar->conf_mutex);
+ ath10k_stop_cac(ar);
del_timer_sync(&ar->scan.timeout);
ath10k_offchan_tx_purge(ar);
ath10k_mgmt_over_wmi_tx_purge(ar);
@@ -2035,11 +2146,16 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
mutex_lock(&ar->conf_mutex);
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
- ath10k_dbg(ATH10K_DBG_MAC, "mac config channel %d mhz\n",
- conf->chandef.chan->center_freq);
+ ath10k_dbg(ATH10K_DBG_MAC,
+ "mac config channel %d mhz flags 0x%x\n",
+ conf->chandef.chan->center_freq,
+ conf->chandef.chan->flags);
+
spin_lock_bh(&ar->data_lock);
ar->rx_channel = conf->chandef.chan;
spin_unlock_bh(&ar->data_lock);
+
+ ath10k_config_radar_detection(ar);
}
if (changed & IEEE80211_CONF_CHANGE_POWER) {
@@ -3308,12 +3424,36 @@ static const struct ieee80211_iface_limit ath10k_if_limits[] = {
},
};
-static const struct ieee80211_iface_combination ath10k_if_comb = {
- .limits = ath10k_if_limits,
- .n_limits = ARRAY_SIZE(ath10k_if_limits),
- .max_interfaces = 8,
- .num_different_channels = 1,
- .beacon_int_infra_match = true,
+#ifdef CONFIG_ATH10K_DFS_CERTIFIED
+static const struct ieee80211_iface_limit ath10k_if_dfs_limits[] = {
+ {
+ .max = 8,
+ .types = BIT(NL80211_IFTYPE_AP)
+ },
+};
+#endif
+
+static const struct ieee80211_iface_combination ath10k_if_comb[] = {
+ {
+ .limits = ath10k_if_limits,
+ .n_limits = ARRAY_SIZE(ath10k_if_limits),
+ .max_interfaces = 8,
+ .num_different_channels = 1,
+ .beacon_int_infra_match = true,
+ },
+#ifdef CONFIG_ATH10K_DFS_CERTIFIED
+ {
+ .limits = ath10k_if_dfs_limits,
+ .n_limits = ARRAY_SIZE(ath10k_if_dfs_limits),
+ .max_interfaces = 8,
+ .num_different_channels = 1,
+ .beacon_int_infra_match = true,
+ .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
+ BIT(NL80211_CHAN_WIDTH_20) |
+ BIT(NL80211_CHAN_WIDTH_40) |
+ BIT(NL80211_CHAN_WIDTH_80),
+ }
+#endif
};
static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
@@ -3537,8 +3677,8 @@ int ath10k_mac_register(struct ath10k *ar)
*/
ar->hw->queues = 4;
- ar->hw->wiphy->iface_combinations = &ath10k_if_comb;
- ar->hw->wiphy->n_iface_combinations = 1;
+ ar->hw->wiphy->iface_combinations = ath10k_if_comb;
+ ar->hw->wiphy->n_iface_combinations = ARRAY_SIZE(ath10k_if_comb);
ar->hw->netdev_features = NETIF_F_HW_CSUM;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index f0bc94abbc74..aea81d944d86 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -907,6 +907,11 @@ static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
ath10k_dbg(ATH10K_DBG_MGMT,
"event mgmt rx status %08x\n", rx_status);
+ if (test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags)) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+
if (rx_status & WMI_RX_STATUS_ERR_DECRYPT) {
dev_kfree_skb(skb);
return 0;
@@ -2302,6 +2307,7 @@ int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
{
struct wmi_set_channel_cmd *cmd;
struct sk_buff *skb;
+ u32 ch_flags = 0;
if (arg->passive)
return -EINVAL;
@@ -2310,10 +2316,14 @@ int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
if (!skb)
return -ENOMEM;
+ if (arg->chan_radar)
+ ch_flags |= WMI_CHAN_FLAG_DFS;
+
cmd = (struct wmi_set_channel_cmd *)skb->data;
cmd->chan.mhz = __cpu_to_le32(arg->freq);
cmd->chan.band_center_freq1 = __cpu_to_le32(arg->freq);
cmd->chan.mode = arg->mode;
+ cmd->chan.flags |= __cpu_to_le32(ch_flags);
cmd->chan.min_power = arg->min_power;
cmd->chan.max_power = arg->max_power;
cmd->chan.reg_power = arg->max_reg_power;
@@ -2862,6 +2872,7 @@ static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
struct sk_buff *skb;
const char *cmdname;
u32 flags = 0;
+ u32 ch_flags = 0;
if (cmd_id != ar->wmi.cmd->vdev_start_request_cmdid &&
cmd_id != ar->wmi.cmd->vdev_restart_request_cmdid)
@@ -2888,6 +2899,8 @@ static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
flags |= WMI_VDEV_START_HIDDEN_SSID;
if (arg->pmf_enabled)
flags |= WMI_VDEV_START_PMF_ENABLED;
+ if (arg->channel.chan_radar)
+ ch_flags |= WMI_CHAN_FLAG_DFS;
cmd = (struct wmi_vdev_start_request_cmd *)skb->data;
cmd->vdev_id = __cpu_to_le32(arg->vdev_id);
@@ -2909,6 +2922,7 @@ static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
__cpu_to_le32(arg->channel.band_center_freq1);
cmd->chan.mode = arg->channel.mode;
+ cmd->chan.flags |= __cpu_to_le32(ch_flags);
cmd->chan.min_power = arg->channel.min_power;
cmd->chan.max_power = arg->channel.max_power;
cmd->chan.reg_power = arg->channel.max_reg_power;
@@ -2916,9 +2930,10 @@ static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
cmd->chan.antenna_max = arg->channel.max_antenna_gain;
ath10k_dbg(ATH10K_DBG_WMI,
- "wmi vdev %s id 0x%x freq %d, mode %d, ch_flags: 0x%0X,"
- "max_power: %d\n", cmdname, arg->vdev_id, arg->channel.freq,
- arg->channel.mode, flags, arg->channel.max_power);
+ "wmi vdev %s id 0x%x flags: 0x%0X, freq %d, mode %d, "
+ "ch_flags: 0x%0X, max_power: %d\n", cmdname, arg->vdev_id,
+ flags, arg->channel.freq, arg->channel.mode,
+ cmd->chan.flags, arg->channel.max_power);
return ath10k_wmi_cmd_send(ar, skb, cmd_id);
}
@@ -3252,6 +3267,8 @@ int ath10k_wmi_scan_chan_list(struct ath10k *ar,
flags |= WMI_CHAN_FLAG_ALLOW_VHT;
if (ch->ht40plus)
flags |= WMI_CHAN_FLAG_HT40_PLUS;
+ if (ch->chan_radar)
+ flags |= WMI_CHAN_FLAG_DFS;
ci->mhz = __cpu_to_le32(ch->freq);
ci->band_center_freq1 = __cpu_to_le32(ch->freq);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index e71273e65c5d..0087d699b85b 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -916,6 +916,7 @@ struct wmi_channel_arg {
bool allow_ht;
bool allow_vht;
bool ht40plus;
+ bool chan_radar;
/* note: power unit is 0.5 dBm */
u32 min_power;
u32 max_power;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 06:55:08 +0100