From a738e766e3ed92c4ee5ec967777276b5ce11dd2c Mon Sep 17 00:00:00 2001
From: Evan Green <evgreen@chromium.org>
Date: Thu, 4 Jun 2020 10:59:11 -0700
Subject: ath10k: Acquire tx_lock in tx error paths

ath10k_htt_tx_free_msdu_id() has a lockdep assertion that htt->tx_lock
is held. Acquire the lock in a couple of error paths when calling that
function to ensure this condition is met.

Fixes: 6421969f248fd ("ath10k: refactor tx pending management")
Fixes: e62ee5c381c59 ("ath10k: Add support for htt_data_tx_desc_64 descriptor")
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200604105901.1.I5b8b0c7ee0d3e51a73248975a9da61401b8f3900@changeid
---
 drivers/net/wireless/ath/ath10k/htt_tx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 4fd10ac3a941..bbe869575855 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -1591,7 +1591,9 @@ static int ath10k_htt_tx_32(struct ath10k_htt *htt,
 err_unmap_msdu:
 	dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
 err_free_msdu_id:
+	spin_lock_bh(&htt->tx_lock);
 	ath10k_htt_tx_free_msdu_id(htt, msdu_id);
+	spin_unlock_bh(&htt->tx_lock);
 err:
 	return res;
 }
@@ -1798,7 +1800,9 @@ static int ath10k_htt_tx_64(struct ath10k_htt *htt,
 err_unmap_msdu:
 	dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
 err_free_msdu_id:
+	spin_lock_bh(&htt->tx_lock);
 	ath10k_htt_tx_free_msdu_id(htt, msdu_id);
+	spin_unlock_bh(&htt->tx_lock);
 err:
 	return res;
 }
-- 
cgit 


From 1141215c745b152da6cb632f3532f7384ced8410 Mon Sep 17 00:00:00 2001
From: Flavio Suligoi <f.suligoi@asem.it>
Date: Fri, 5 Jun 2020 17:41:06 +0200
Subject: ath: fix wiki website url

In some ath files, the wiki url is still the old
"wireless.kernel.org" instead of the new
"wireless.wiki.kernel.org"

Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200605154112.16277-4-f.suligoi@asem.it
---
 drivers/net/wireless/ath/Kconfig          | 4 ++--
 drivers/net/wireless/ath/ath9k/Kconfig    | 5 +++--
 drivers/net/wireless/ath/ath9k/hw.c       | 2 +-
 drivers/net/wireless/ath/carl9170/Kconfig | 2 +-
 drivers/net/wireless/ath/carl9170/usb.c   | 2 +-
 drivers/net/wireless/ath/wil6210/Kconfig  | 2 +-
 6 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/Kconfig b/drivers/net/wireless/ath/Kconfig
index b10972b6cba4..0138d415f4e1 100644
--- a/drivers/net/wireless/ath/Kconfig
+++ b/drivers/net/wireless/ath/Kconfig
@@ -15,11 +15,11 @@ config WLAN_VENDOR_ATH
 
 	  For more information and documentation on this module you can visit:
 
-	  http://wireless.kernel.org/en/users/Drivers/ath
+	  https://wireless.wiki.kernel.org/en/users/Drivers/ath
 
 	  For information on all Atheros wireless drivers visit:
 
-	  http://wireless.kernel.org/en/users/Drivers/Atheros
+	  https://wireless.wiki.kernel.org/en/users/Drivers/Atheros
 
 if WLAN_VENDOR_ATH
 
diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index 78620c6b64a2..28b46ca9ee3b 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -34,7 +34,7 @@ config ATH9K
 	  APs that come with these cards refer to ath9k wiki
 	  products page:
 
-	  http://wireless.kernel.org/en/users/Drivers/ath9k/products
+	  https://wireless.wiki.kernel.org/en/users/Drivers/ath9k/products
 
 	  If you choose to build a module, it'll be called ath9k.
 
@@ -185,7 +185,8 @@ config ATH9K_HTC
 	  Support for Atheros HTC based cards.
 	  Chipsets supported: AR9271
 
-	  For more information: http://wireless.kernel.org/en/users/Drivers/ath9k_htc
+	  For more information:
+	  https://wireless.wiki.kernel.org/en/users/Drivers/ath9k_htc
 
 	  The built module will be ath9k_htc.
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 052deffb4c9d..8c97db73e34c 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2410,7 +2410,7 @@ static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask)
  * of tests. The testing requirements are going to be documented. Desired
  * test requirements are documented at:
  *
- * http://wireless.kernel.org/en/users/Drivers/ath9k/dfs
+ * https://wireless.wiki.kernel.org/en/users/Drivers/ath9k/dfs
  *
  * Once a new chipset gets properly tested an individual commit can be used
  * to document the testing for DFS for that chipset.
diff --git a/drivers/net/wireless/ath/carl9170/Kconfig b/drivers/net/wireless/ath/carl9170/Kconfig
index b1bce7aad399..b2d760873992 100644
--- a/drivers/net/wireless/ath/carl9170/Kconfig
+++ b/drivers/net/wireless/ath/carl9170/Kconfig
@@ -10,7 +10,7 @@ config CARL9170
 
 	  It needs a special firmware (carl9170-1.fw), which can be downloaded
 	  from our wiki here:
-	  <http://wireless.kernel.org/en/users/Drivers/carl9170>
+	  <https://wireless.wiki.kernel.org/en/users/Drivers/carl9170>
 
 	  If you choose to build a module, it'll be called carl9170.
 
diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index 486957a04bd1..ead79335823a 100644
--- a/drivers/net/wireless/ath/carl9170/usb.c
+++ b/drivers/net/wireless/ath/carl9170/usb.c
@@ -61,7 +61,7 @@ MODULE_ALIAS("arusb_lnx");
  * Note:
  *
  * Always update our wiki's device list (located at:
- * http://wireless.kernel.org/en/users/Drivers/ar9170/devices ),
+ * https://wireless.wiki.kernel.org/en/users/Drivers/ar9170/devices ),
  * whenever you add a new device.
  */
 static const struct usb_device_id carl9170_usb_ids[] = {
diff --git a/drivers/net/wireless/ath/wil6210/Kconfig b/drivers/net/wireless/ath/wil6210/Kconfig
index 0d1a8dab30ed..8c9dd673b9e7 100644
--- a/drivers/net/wireless/ath/wil6210/Kconfig
+++ b/drivers/net/wireless/ath/wil6210/Kconfig
@@ -10,7 +10,7 @@ config WIL6210
 	  wil6210 chip by Wilocity. It supports operation on the
 	  60 GHz band, covered by the IEEE802.11ad standard.
 
-	  http://wireless.kernel.org/en/users/Drivers/wil6210
+	  https://wireless.wiki.kernel.org/en/users/Drivers/wil6210
 
 	  If you choose to build it as a module, it will be called
 	  wil6210
-- 
cgit 


From c5625abaf8266307d2237a75143b27be7afafcdf Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:02 +0300
Subject: ath11k: add 6G frequency list supported by driver

This patch adds support for 6GHz frequency listing.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-2-pradeepc@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/mac.c | 71 +++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 2836a0f197ab..b55a374c845f 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -33,6 +33,15 @@
 	.max_power              = 30, \
 }
 
+#define CHAN6G(_channel, _freq, _flags) { \
+	.band                   = NL80211_BAND_6GHZ, \
+	.hw_value               = (_channel), \
+	.center_freq            = (_freq), \
+	.flags                  = (_flags), \
+	.max_antenna_gain       = 0, \
+	.max_power              = 30, \
+}
+
 /* frame mode values are mapped as per enum ath11k_hw_txrx_mode */
 static unsigned int ath11k_frame_mode = ATH11K_HW_TXRX_NATIVE_WIFI;
 module_param_named(frame_mode, ath11k_frame_mode, uint, 0644);
@@ -86,6 +95,68 @@ static const struct ieee80211_channel ath11k_5ghz_channels[] = {
 	CHAN5G(173, 5865, 0),
 };
 
+static const struct ieee80211_channel ath11k_6ghz_channels[] = {
+	CHAN6G(1, 5955, 0),
+	CHAN6G(5, 5975, 0),
+	CHAN6G(9, 5995, 0),
+	CHAN6G(13, 6015, 0),
+	CHAN6G(17, 6035, 0),
+	CHAN6G(21, 6055, 0),
+	CHAN6G(25, 6075, 0),
+	CHAN6G(29, 6095, 0),
+	CHAN6G(33, 6115, 0),
+	CHAN6G(37, 6135, 0),
+	CHAN6G(41, 6155, 0),
+	CHAN6G(45, 6175, 0),
+	CHAN6G(49, 6195, 0),
+	CHAN6G(53, 6215, 0),
+	CHAN6G(57, 6235, 0),
+	CHAN6G(61, 6255, 0),
+	CHAN6G(65, 6275, 0),
+	CHAN6G(69, 6295, 0),
+	CHAN6G(73, 6315, 0),
+	CHAN6G(77, 6335, 0),
+	CHAN6G(81, 6355, 0),
+	CHAN6G(85, 6375, 0),
+	CHAN6G(89, 6395, 0),
+	CHAN6G(93, 6415, 0),
+	CHAN6G(97, 6435, 0),
+	CHAN6G(101, 6455, 0),
+	CHAN6G(105, 6475, 0),
+	CHAN6G(109, 6495, 0),
+	CHAN6G(113, 6515, 0),
+	CHAN6G(117, 6535, 0),
+	CHAN6G(121, 6555, 0),
+	CHAN6G(125, 6575, 0),
+	CHAN6G(129, 6595, 0),
+	CHAN6G(133, 6615, 0),
+	CHAN6G(137, 6635, 0),
+	CHAN6G(141, 6655, 0),
+	CHAN6G(145, 6675, 0),
+	CHAN6G(149, 6695, 0),
+	CHAN6G(153, 6715, 0),
+	CHAN6G(157, 6735, 0),
+	CHAN6G(161, 6755, 0),
+	CHAN6G(165, 6775, 0),
+	CHAN6G(169, 6795, 0),
+	CHAN6G(173, 6815, 0),
+	CHAN6G(177, 6835, 0),
+	CHAN6G(181, 6855, 0),
+	CHAN6G(185, 6875, 0),
+	CHAN6G(189, 6895, 0),
+	CHAN6G(193, 6915, 0),
+	CHAN6G(197, 6935, 0),
+	CHAN6G(201, 6955, 0),
+	CHAN6G(205, 6975, 0),
+	CHAN6G(209, 6995, 0),
+	CHAN6G(213, 7015, 0),
+	CHAN6G(217, 7035, 0),
+	CHAN6G(221, 7055, 0),
+	CHAN6G(225, 7075, 0),
+	CHAN6G(229, 7095, 0),
+	CHAN6G(233, 7115, 0),
+};
+
 static struct ieee80211_rate ath11k_legacy_rates[] = {
 	{ .bitrate = 10,
 	  .hw_value = ATH11K_HW_RATE_CCK_LP_1M },
-- 
cgit 


From 22eeadcdeab63e88983401f699f61a0121c03a0d Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:02 +0300
Subject: ath11k: add support for 6GHz radio in driver

This patch adds 6GHz band support and mac80211 registration for
the 6G phy radio.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-3-pradeepc@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/core.h |  6 ++-
 drivers/net/wireless/ath/ath11k/mac.c  | 91 +++++++++++++++++++++++++++-------
 drivers/net/wireless/ath/ath11k/wmi.c  | 16 +++++-
 3 files changed, 92 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index e04f0e711779..67dee661d6bb 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -353,7 +353,10 @@ struct ath11k_sta {
 #endif
 };
 
-#define ATH11K_NUM_CHANS 41
+#define ATH11K_MIN_5G_FREQ 4150
+#define ATH11K_MIN_6G_FREQ 5945
+#define ATH11K_MAX_6G_FREQ 7115
+#define ATH11K_NUM_CHANS 100
 #define ATH11K_MAX_5G_CHAN 173
 
 enum ath11k_state {
@@ -431,6 +434,7 @@ struct ath11k {
 	u32 vht_cap_info;
 	struct ath11k_he ar_he;
 	enum ath11k_state state;
+	bool supports_6ghz;
 	struct {
 		struct completion started;
 		struct completion completed;
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index b55a374c845f..ea732f973079 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -205,6 +205,17 @@ ath11k_phymodes[NUM_NL80211_BANDS][ATH11K_CHAN_WIDTH_NUM] = {
 			[NL80211_CHAN_WIDTH_160] = MODE_11AX_HE160,
 			[NL80211_CHAN_WIDTH_80P80] = MODE_11AX_HE80_80,
 	},
+	[NL80211_BAND_6GHZ] = {
+			[NL80211_CHAN_WIDTH_5] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_10] = MODE_UNKNOWN,
+			[NL80211_CHAN_WIDTH_20_NOHT] = MODE_11AX_HE20,
+			[NL80211_CHAN_WIDTH_20] = MODE_11AX_HE20,
+			[NL80211_CHAN_WIDTH_40] = MODE_11AX_HE40,
+			[NL80211_CHAN_WIDTH_80] = MODE_11AX_HE80,
+			[NL80211_CHAN_WIDTH_160] = MODE_11AX_HE160,
+			[NL80211_CHAN_WIDTH_80P80] = MODE_11AX_HE80_80,
+	},
+
 };
 
 const struct htt_rx_ring_tlv_filter ath11k_mac_mon_status_filter_default = {
@@ -1560,6 +1571,7 @@ static void ath11k_peer_assoc_h_phymode(struct ath11k *ar,
 		}
 		break;
 	case NL80211_BAND_5GHZ:
+	case NL80211_BAND_6GHZ:
 		/* Check HE first */
 		if (sta->he_cap.has_he) {
 			phymode = ath11k_mac_get_phymode_he(ar, sta);
@@ -3482,7 +3494,7 @@ static void ath11k_mac_setup_ht_vht_cap(struct ath11k *ar,
 						    rate_cap_rx_chainmask);
 	}
 
-	if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP) {
+	if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP && !ar->supports_6ghz) {
 		band = &ar->mac.sbands[NL80211_BAND_5GHZ];
 		ht_cap = cap->band[NL80211_BAND_5GHZ].ht_cap_info;
 		if (ht_cap_info)
@@ -3714,6 +3726,16 @@ static void ath11k_mac_setup_he_cap(struct ath11k *ar,
 		band->iftype_data = ar->mac.iftype[NL80211_BAND_5GHZ];
 		band->n_iftype_data = count;
 	}
+
+	if (cap->supported_bands & WMI_HOST_WLAN_5G_CAP &&
+	    ar->supports_6ghz) {
+		count = ath11k_mac_copy_he_cap(ar, cap,
+					       ar->mac.iftype[NL80211_BAND_6GHZ],
+					       NL80211_BAND_6GHZ);
+		band = &ar->mac.sbands[NL80211_BAND_6GHZ];
+		band->iftype_data = ar->mac.iftype[NL80211_BAND_6GHZ];
+		band->n_iftype_data = count;
+	}
 }
 
 static int __ath11k_set_antenna(struct ath11k *ar, u32 tx_ant, u32 rx_ant)
@@ -4156,6 +4178,11 @@ ath11k_mac_setup_vdev_create_params(struct ath11k_vif *arvif,
 		params->chains[NL80211_BAND_5GHZ].tx = ar->num_tx_chains;
 		params->chains[NL80211_BAND_5GHZ].rx = ar->num_rx_chains;
 	}
+	if (pdev->cap.supported_bands & WMI_HOST_WLAN_5G_CAP &&
+	    ar->supports_6ghz) {
+		params->chains[NL80211_BAND_6GHZ].tx = ar->num_tx_chains;
+		params->chains[NL80211_BAND_6GHZ].rx = ar->num_rx_chains;
+	}
 }
 
 static u32
@@ -5288,7 +5315,7 @@ ath11k_mac_get_single_legacy_rate(struct ath11k *ar,
 
 	rate_idx = ffs(mask->control[band].legacy) - 1;
 
-	if (band == NL80211_BAND_5GHZ)
+	if (band == NL80211_BAND_5GHZ || band == NL80211_BAND_6GHZ)
 		rate_idx += ATH11K_MAC_FIRST_OFDM_RATE_IDX;
 
 	hw_rate = ath11k_legacy_rates[rate_idx].hw_value;
@@ -5754,7 +5781,8 @@ static int ath11k_mac_setup_channels_rates(struct ath11k *ar,
 	void *channels;
 
 	BUILD_BUG_ON((ARRAY_SIZE(ath11k_2ghz_channels) +
-		      ARRAY_SIZE(ath11k_5ghz_channels)) !=
+		      ARRAY_SIZE(ath11k_5ghz_channels) +
+		      ARRAY_SIZE(ath11k_6ghz_channels)) !=
 		     ATH11K_NUM_CHANS);
 
 	reg_cap = &ar->ab->hal_reg_cap[ar->pdev_idx];
@@ -5767,6 +5795,7 @@ static int ath11k_mac_setup_channels_rates(struct ath11k *ar,
 			return -ENOMEM;
 
 		band = &ar->mac.sbands[NL80211_BAND_2GHZ];
+		band->band = NL80211_BAND_2GHZ;
 		band->n_channels = ARRAY_SIZE(ath11k_2ghz_channels);
 		band->channels = channels;
 		band->n_bitrates = ath11k_g_rates_size;
@@ -5778,23 +5807,48 @@ static int ath11k_mac_setup_channels_rates(struct ath11k *ar,
 	}
 
 	if (supported_bands & WMI_HOST_WLAN_5G_CAP) {
-		channels = kmemdup(ath11k_5ghz_channels,
-				   sizeof(ath11k_5ghz_channels),
-				   GFP_KERNEL);
-		if (!channels) {
-			kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
-			return -ENOMEM;
+		if (reg_cap->high_5ghz_chan >= ATH11K_MAX_6G_FREQ) {
+			channels = kmemdup(ath11k_6ghz_channels,
+					   sizeof(ath11k_6ghz_channels), GFP_KERNEL);
+			if (!channels) {
+				kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
+				return -ENOMEM;
+			}
+
+			ar->supports_6ghz = true;
+			band = &ar->mac.sbands[NL80211_BAND_6GHZ];
+			band->band = NL80211_BAND_6GHZ;
+			band->n_channels = ARRAY_SIZE(ath11k_6ghz_channels);
+			band->channels = channels;
+			band->n_bitrates = ath11k_a_rates_size;
+			band->bitrates = ath11k_a_rates;
+			ar->hw->wiphy->bands[NL80211_BAND_6GHZ] = band;
+			ath11k_mac_update_ch_list(ar, band,
+						  reg_cap->low_5ghz_chan,
+						  reg_cap->high_5ghz_chan);
 		}
 
-		band = &ar->mac.sbands[NL80211_BAND_5GHZ];
-		band->n_channels = ARRAY_SIZE(ath11k_5ghz_channels);
-		band->channels = channels;
-		band->n_bitrates = ath11k_a_rates_size;
-		band->bitrates = ath11k_a_rates;
-		ar->hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
-		ath11k_mac_update_ch_list(ar, band,
-					  reg_cap->low_5ghz_chan,
-					  reg_cap->high_5ghz_chan);
+		if (reg_cap->low_5ghz_chan < ATH11K_MIN_6G_FREQ) {
+			channels = kmemdup(ath11k_5ghz_channels,
+					   sizeof(ath11k_5ghz_channels),
+					   GFP_KERNEL);
+			if (!channels) {
+				kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
+				kfree(ar->mac.sbands[NL80211_BAND_6GHZ].channels);
+				return -ENOMEM;
+			}
+
+			band = &ar->mac.sbands[NL80211_BAND_5GHZ];
+			band->band = NL80211_BAND_5GHZ;
+			band->n_channels = ARRAY_SIZE(ath11k_5ghz_channels);
+			band->channels = channels;
+			band->n_bitrates = ath11k_a_rates_size;
+			band->bitrates = ath11k_a_rates;
+			ar->hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
+			ath11k_mac_update_ch_list(ar, band,
+						  reg_cap->low_5ghz_chan,
+						  reg_cap->high_5ghz_chan);
+		}
 	}
 
 	return 0;
@@ -5848,6 +5902,7 @@ static void __ath11k_mac_unregister(struct ath11k *ar)
 
 	kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
 	kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
+	kfree(ar->mac.sbands[NL80211_BAND_6GHZ].channels);
 
 	SET_IEEE80211_DEV(ar->hw, NULL);
 }
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index c2a972377687..291fb274134f 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -368,6 +368,17 @@ ath11k_pull_mac_phy_cap_svc_ready_ext(struct ath11k_pdev_wmi *wmi_handle,
 	memcpy(&cap_band->he_ppet, &mac_phy_caps->he_ppet5g,
 	       sizeof(struct ath11k_ppe_threshold));
 
+	cap_band = &pdev_cap->band[NL80211_BAND_6GHZ];
+	cap_band->max_bw_supported = mac_phy_caps->max_bw_supported_5g;
+	cap_band->ht_cap_info = mac_phy_caps->ht_cap_info_5g;
+	cap_band->he_cap_info[0] = mac_phy_caps->he_cap_info_5g;
+	cap_band->he_cap_info[1] = mac_phy_caps->he_cap_info_5g_ext;
+	cap_band->he_mcs = mac_phy_caps->he_supp_mcs_5g;
+	memcpy(cap_band->he_cap_phy_info, &mac_phy_caps->he_cap_phy_info_5g,
+	       sizeof(u32) * PSOC_HOST_MAX_PHY_SIZE);
+	memcpy(&cap_band->he_ppet, &mac_phy_caps->he_ppet5g,
+	       sizeof(struct ath11k_ppe_threshold));
+
 	return 0;
 }
 
@@ -5206,9 +5217,10 @@ static void ath11k_mgmt_rx_event(struct ath11k_base *ab, struct sk_buff *skb)
 		goto exit;
 	}
 
-	if (rx_ev.phy_mode == MODE_11B && status->band == NL80211_BAND_5GHZ)
+	if (rx_ev.phy_mode == MODE_11B &&
+	    (status->band == NL80211_BAND_5GHZ || status->band == NL80211_BAND_6GHZ))
 		ath11k_dbg(ab, ATH11K_DBG_WMI,
-			   "wmi mgmt rx 11b (CCK) on 5GHz\n");
+			   "wmi mgmt rx 11b (CCK) on 5/6GHz, band = %d\n", status->band);
 
 	sband = &ar->mac.sbands[status->band];
 
-- 
cgit 


From 5dcf42f8b79d1419ad7f6d46d7b5f7dc5bf9cdba Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:03 +0300
Subject: ath11k: Use freq instead of channel number in rx path

As 6GHz cahnnel numbers overlap with those of 5GHz and 2GHz bands,
it is necessary to use frequency when determining the band info
in rx path.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-4-pradeepc@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/dp_rx.c | 6 +++++-
 drivers/net/wireless/ath/ath11k/wmi.c   | 5 ++++-
 drivers/net/wireless/ath/ath11k/wmi.h   | 2 ++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index a54610d75c40..112f130f91c2 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2162,6 +2162,7 @@ static void ath11k_dp_rx_h_ppdu(struct ath11k *ar, struct hal_rx_desc *rx_desc,
 				struct ieee80211_rx_status *rx_status)
 {
 	u8 channel_num;
+	u32 center_freq;
 
 	rx_status->freq = 0;
 	rx_status->rate_idx = 0;
@@ -2172,8 +2173,11 @@ static void ath11k_dp_rx_h_ppdu(struct ath11k *ar, struct hal_rx_desc *rx_desc,
 	rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL;
 
 	channel_num = ath11k_dp_rx_h_msdu_start_freq(rx_desc);
+	center_freq = ath11k_dp_rx_h_msdu_start_freq(rx_desc) >> 16;
 
-	if (channel_num >= 1 && channel_num <= 14) {
+	if (center_freq >= 5935 && center_freq <= 7105) {
+		rx_status->band = NL80211_BAND_6GHZ;
+	} else if (channel_num >= 1 && channel_num <= 14) {
 		rx_status->band = NL80211_BAND_2GHZ;
 	} else if (channel_num >= 36 && channel_num <= 173) {
 		rx_status->band = NL80211_BAND_5GHZ;
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 291fb274134f..500108fa59d9 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -3833,6 +3833,7 @@ static int ath11k_pull_mgmt_rx_params_tlv(struct ath11k_base *ab,
 	}
 
 	hdr->pdev_id =  ev->pdev_id;
+	hdr->chan_freq = ev->chan_freq;
 	hdr->channel =  ev->channel;
 	hdr->snr =  ev->snr;
 	hdr->rate =  ev->rate;
@@ -5204,7 +5205,9 @@ static void ath11k_mgmt_rx_event(struct ath11k_base *ab, struct sk_buff *skb)
 	if (rx_ev.status & WMI_RX_STATUS_ERR_MIC)
 		status->flag |= RX_FLAG_MMIC_ERROR;
 
-	if (rx_ev.channel >= 1 && rx_ev.channel <= 14) {
+	if (rx_ev.chan_freq >= ATH11K_MIN_6G_FREQ) {
+		status->band = NL80211_BAND_6GHZ;
+	} else if (rx_ev.channel >= 1 && rx_ev.channel <= 14) {
 		status->band = NL80211_BAND_2GHZ;
 	} else if (rx_ev.channel >= 36 && rx_ev.channel <= ATH11K_MAX_5G_CHAN) {
 		status->band = NL80211_BAND_5GHZ;
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index b9f3e559ced7..afa3c4cf90e9 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -4228,6 +4228,7 @@ struct wmi_pdev_temperature_event {
 #define WLAN_MGMT_TXRX_HOST_MAX_ANTENNA 4
 
 struct mgmt_rx_event_params {
+	u32 chan_freq;
 	u32 channel;
 	u32 snr;
 	u8 rssi_ctl[WLAN_MGMT_TXRX_HOST_MAX_ANTENNA];
@@ -4257,6 +4258,7 @@ struct wmi_mgmt_rx_hdr {
 	u32 rx_tsf_l32;
 	u32 rx_tsf_u32;
 	u32 pdev_id;
+	u32 chan_freq;
 } __packed;
 
 #define MAX_ANTENNA_EIGHT 8
-- 
cgit 


From 91270d709b210a1c08d67faa3be3ae3e459a0889 Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:03 +0300
Subject: ath11k: extend peer_assoc_cmd for 6GHz band
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This adds support required for configuring min_data_rate of 6GHz oper IE
and peer_he_caps_6ghz in peer assoc command. The Minimum Rate field
indicates the minimum rate, in units of 1 Mb/s, that the non-AP STA is
allowed to use for sending PPDUs as defined in IEEE P802.11ax™/D6.0.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-5-pradeepc@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/wmi.c | 2 ++
 drivers/net/wireless/ath/ath11k/wmi.h | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 500108fa59d9..a6bbb3badd1f 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1789,6 +1789,7 @@ int ath11k_wmi_send_peer_assoc_cmd(struct ath11k *ar,
 	cmd->peer_he_cap_info = param->peer_he_cap_macinfo[0];
 	cmd->peer_he_cap_info_ext = param->peer_he_cap_macinfo[1];
 	cmd->peer_he_cap_info_internal = param->peer_he_cap_macinfo_internal;
+	cmd->peer_he_caps_6ghz = param->peer_he_caps_6ghz;
 	cmd->peer_he_ops = param->peer_he_ops;
 	memcpy(&cmd->peer_he_cap_phy, &param->peer_he_cap_phyinfo,
 	       sizeof(param->peer_he_cap_phyinfo));
@@ -1842,6 +1843,7 @@ int ath11k_wmi_send_peer_assoc_cmd(struct ath11k *ar,
 
 	/* HE Rates */
 	cmd->peer_he_mcs = param->peer_he_mcs_count;
+	cmd->min_data_rate = param->min_data_rate;
 
 	ptr += sizeof(*mcs);
 
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index afa3c4cf90e9..fd82cff7537b 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -1011,6 +1011,7 @@ enum wmi_tlv_vdev_param {
 	WMI_VDEV_PARAM_FILS_MAX_CHANNEL_GUARD_TIME,
 	WMI_VDEV_PARAM_BA_MODE = 0x7e,
 	WMI_VDEV_PARAM_SET_HE_SOUNDING_MODE = 0x87,
+	WMI_VDEV_PARAM_6GHZ_PARAMS = 0x99,
 	WMI_VDEV_PARAM_PROTOTYPE = 0x8000,
 	WMI_VDEV_PARAM_BSS_COLOR,
 	WMI_VDEV_PARAM_SET_HEMU_MODE,
@@ -3444,6 +3445,7 @@ struct peer_assoc_params {
 	u32 tx_max_rate;
 	u32 tx_mcs_set;
 	u8 vht_capable;
+	u8 min_data_rate;
 	u32 tx_max_mcs_nss;
 	u32 peer_bw_rxnss_override;
 	bool is_pmf_enabled;
@@ -3472,6 +3474,7 @@ struct peer_assoc_params {
 	bool he_flag;
 	u32 peer_he_cap_macinfo[2];
 	u32 peer_he_cap_macinfo_internal;
+	u32 peer_he_caps_6ghz;
 	u32 peer_he_ops;
 	u32 peer_he_cap_phyinfo[WMI_HOST_MAX_HECAP_PHY_SIZE];
 	u32 peer_he_mcs_count;
@@ -3509,6 +3512,8 @@ struct  wmi_peer_assoc_complete_cmd {
 	u32 peer_he_mcs;
 	u32 peer_he_cap_info_ext;
 	u32 peer_he_cap_info_internal;
+	u32 min_data_rate;
+	u32 peer_he_caps_6ghz;
 } __packed;
 
 struct wmi_stop_scan_cmd {
-- 
cgit 


From d387503df0cd7f7d5a3b1366f6a40664465e090c Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:03 +0300
Subject: ath11k: set psc channel flag when sending channel list to firmware.

If 6 ghz channel is a Preferred Scanning Channel(PSC), mark
the channel flag accordingly when updating channel list to firmware.
This will be used when making scanning decision in 6GHz channels.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-6-pradeepc@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/reg.c | 4 ++++
 drivers/net/wireless/ath/ath11k/wmi.h | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/reg.c b/drivers/net/wireless/ath/ath11k/reg.c
index 453aa9c06969..7c9dc91cc48a 100644
--- a/drivers/net/wireless/ath/ath11k/reg.c
+++ b/drivers/net/wireless/ath/ath11k/reg.c
@@ -161,6 +161,10 @@ int ath11k_reg_update_chan_list(struct ath11k *ar)
 			else
 				ch->phy_mode = MODE_11A;
 
+			if (channel->band == NL80211_BAND_6GHZ &&
+			    cfg80211_channel_is_psc(channel))
+				ch->psc_channel = true;
+
 			ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
 				   "mac channel [%d/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
 				   i, params->nallchans,
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index fd82cff7537b..76c2da2c5db7 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -2520,7 +2520,8 @@ struct channel_param {
 	    allow_ht:1,
 	    allow_vht:1,
 	    allow_he:1,
-	    set_agile:1;
+	    set_agile:1,
+	    psc_channel:1;
 	u32 phy_mode;
 	u32 cfreq1;
 	u32 cfreq2;
-- 
cgit 


From 194b8ea1ce5a9c15a73e441380ed678fa009d3ed Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:04 +0300
Subject: ath11k: Add 6G scan dwell time parameter in scan request command

Add 6G scan active and passive dwell time parameter to scan request.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-7-pradeepc@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/wmi.c | 4 ++++
 drivers/net/wireless/ath/ath11k/wmi.h | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index a6bbb3badd1f..239a336f55f4 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1899,6 +1899,8 @@ void ath11k_wmi_start_scan_init(struct ath11k *ar,
 	arg->dwell_time_active = 50;
 	arg->dwell_time_active_2g = 0;
 	arg->dwell_time_passive = 150;
+	arg->dwell_time_active_6g = 40;
+	arg->dwell_time_passive_6g = 30;
 	arg->min_rest_time = 50;
 	arg->max_rest_time = 500;
 	arg->repeat_probe_time = 0;
@@ -2045,6 +2047,8 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,
 	cmd->dwell_time_active = params->dwell_time_active;
 	cmd->dwell_time_active_2g = params->dwell_time_active_2g;
 	cmd->dwell_time_passive = params->dwell_time_passive;
+	cmd->dwell_time_active_6g = params->dwell_time_active_6g;
+	cmd->dwell_time_passive_6g = params->dwell_time_passive_6g;
 	cmd->min_rest_time = params->min_rest_time;
 	cmd->max_rest_time = params->max_rest_time;
 	cmd->repeat_probe_time = params->repeat_probe_time;
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 76c2da2c5db7..4937d02839fc 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -3061,6 +3061,9 @@ struct  wmi_start_scan_cmd {
 	u32 num_vendor_oui;
 	u32 scan_ctrl_flags_ext;
 	u32 dwell_time_active_2g;
+	u32 dwell_time_active_6g;
+	u32 dwell_time_passive_6g;
+	u32 scan_start_offset;
 } __packed;
 
 #define WMI_SCAN_FLAG_PASSIVE        0x1
@@ -3127,6 +3130,8 @@ struct scan_req_params {
 	u32 dwell_time_active;
 	u32 dwell_time_active_2g;
 	u32 dwell_time_passive;
+	u32 dwell_time_active_6g;
+	u32 dwell_time_passive_6g;
 	u32 min_rest_time;
 	u32 max_rest_time;
 	u32 repeat_probe_time;
-- 
cgit 


From bff621fd113ff782b91795a9b2baac0b226bc069 Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:04 +0300
Subject: ath11k: Send multiple scan_chan_list messages if required

With addition of 6Ghz channels, it is possible that wmi buffer size can
exceed the maximum wmi buffer size. So iterate over the channel list,
and send multiple messages till channel list is empty.
Also mark PSC channel flag for 6GHz channels accordingly.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-8-pradeepc@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/wmi.c | 161 +++++++++++++++++++---------------
 drivers/net/wireless/ath/ath11k/wmi.h |   3 +
 2 files changed, 93 insertions(+), 71 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 239a336f55f4..2f9a459c4230 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -2195,91 +2195,110 @@ int ath11k_wmi_send_scan_chan_list_cmd(struct ath11k *ar,
 	struct wmi_tlv *tlv;
 	void *ptr;
 	int i, ret, len;
+	u16 num_send_chans, num_sends = 0, max_chan_limit = 0;
 	u32 *reg1, *reg2;
 
-	len = sizeof(*cmd) + TLV_HDR_SIZE +
-		 sizeof(*chan_info) * chan_list->nallchans;
-
-	skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, len);
-	if (!skb)
-		return -ENOMEM;
+	tchan_info = &chan_list->ch_param[0];
+	while (chan_list->nallchans) {
+		len = sizeof(*cmd) + TLV_HDR_SIZE;
+		max_chan_limit = (wmi->wmi_ab->max_msg_len[ar->pdev_idx] - len) /
+			sizeof(*chan_info);
 
-	cmd = (struct wmi_scan_chan_list_cmd *)skb->data;
-	cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_SCAN_CHAN_LIST_CMD) |
-			  FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+		if (chan_list->nallchans > max_chan_limit)
+			num_send_chans = max_chan_limit;
+		else
+			num_send_chans = chan_list->nallchans;
 
-	ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
-		   "WMI no.of chan = %d len = %d\n", chan_list->nallchans, len);
-	cmd->pdev_id = chan_list->pdev_id;
-	cmd->num_scan_chans = chan_list->nallchans;
+		chan_list->nallchans -= num_send_chans;
+		len += sizeof(*chan_info) * num_send_chans;
 
-	ptr = skb->data + sizeof(*cmd);
+		skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, len);
+		if (!skb)
+			return -ENOMEM;
 
-	len = sizeof(*chan_info) * chan_list->nallchans;
-	tlv = ptr;
-	tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_STRUCT) |
-		      FIELD_PREP(WMI_TLV_LEN, len - TLV_HDR_SIZE);
-	ptr += TLV_HDR_SIZE;
+		cmd = (struct wmi_scan_chan_list_cmd *)skb->data;
+		cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_SCAN_CHAN_LIST_CMD) |
+			FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+		cmd->pdev_id = chan_list->pdev_id;
+		cmd->num_scan_chans = num_send_chans;
+		if (num_sends)
+			cmd->flags |= WMI_APPEND_TO_EXISTING_CHAN_LIST_FLAG;
 
-	tchan_info = &chan_list->ch_param[0];
+		ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
+			   "WMI no.of chan = %d len = %d pdev_id = %d num_sends = %d\n",
+			   num_send_chans, len, cmd->pdev_id, num_sends);
 
-	for (i = 0; i < chan_list->nallchans; ++i) {
-		chan_info = ptr;
-		memset(chan_info, 0, sizeof(*chan_info));
-		len = sizeof(*chan_info);
-		chan_info->tlv_header = FIELD_PREP(WMI_TLV_TAG,
-						   WMI_TAG_CHANNEL) |
-					FIELD_PREP(WMI_TLV_LEN,
-						   len - TLV_HDR_SIZE);
-
-		reg1 = &chan_info->reg_info_1;
-		reg2 = &chan_info->reg_info_2;
-		chan_info->mhz = tchan_info->mhz;
-		chan_info->band_center_freq1 = tchan_info->cfreq1;
-		chan_info->band_center_freq2 = tchan_info->cfreq2;
-
-		if (tchan_info->is_chan_passive)
-			chan_info->info |= WMI_CHAN_INFO_PASSIVE;
-		if (tchan_info->allow_he)
-			chan_info->info |= WMI_CHAN_INFO_ALLOW_HE;
-		else if (tchan_info->allow_vht)
-			chan_info->info |= WMI_CHAN_INFO_ALLOW_VHT;
-		else if (tchan_info->allow_ht)
-			chan_info->info |= WMI_CHAN_INFO_ALLOW_HT;
-		if (tchan_info->half_rate)
-			chan_info->info |= WMI_CHAN_INFO_HALF_RATE;
-		if (tchan_info->quarter_rate)
-			chan_info->info |= WMI_CHAN_INFO_QUARTER_RATE;
-
-		chan_info->info |= FIELD_PREP(WMI_CHAN_INFO_MODE,
-					      tchan_info->phy_mode);
-		*reg1 |= FIELD_PREP(WMI_CHAN_REG_INFO1_MIN_PWR,
-				    tchan_info->minpower);
-		*reg1 |= FIELD_PREP(WMI_CHAN_REG_INFO1_MAX_PWR,
-				    tchan_info->maxpower);
-		*reg1 |= FIELD_PREP(WMI_CHAN_REG_INFO1_MAX_REG_PWR,
-				    tchan_info->maxregpower);
-		*reg1 |= FIELD_PREP(WMI_CHAN_REG_INFO1_REG_CLS,
-				    tchan_info->reg_class_id);
-		*reg2 |= FIELD_PREP(WMI_CHAN_REG_INFO2_ANT_MAX,
-				    tchan_info->antennamax);
+		ptr = skb->data + sizeof(*cmd);
 
-		ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
-			   "WMI chan scan list chan[%d] = %u\n",
-			   i, chan_info->mhz);
+		len = sizeof(*chan_info) * num_send_chans;
+		tlv = ptr;
+		tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_STRUCT) |
+			      FIELD_PREP(WMI_TLV_LEN, len - TLV_HDR_SIZE);
+		ptr += TLV_HDR_SIZE;
 
-		ptr += sizeof(*chan_info);
+		for (i = 0; i < num_send_chans; ++i) {
+			chan_info = ptr;
+			memset(chan_info, 0, sizeof(*chan_info));
+			len = sizeof(*chan_info);
+			chan_info->tlv_header = FIELD_PREP(WMI_TLV_TAG,
+							   WMI_TAG_CHANNEL) |
+						FIELD_PREP(WMI_TLV_LEN,
+							   len - TLV_HDR_SIZE);
+
+			reg1 = &chan_info->reg_info_1;
+			reg2 = &chan_info->reg_info_2;
+			chan_info->mhz = tchan_info->mhz;
+			chan_info->band_center_freq1 = tchan_info->cfreq1;
+			chan_info->band_center_freq2 = tchan_info->cfreq2;
+
+			if (tchan_info->is_chan_passive)
+				chan_info->info |= WMI_CHAN_INFO_PASSIVE;
+			if (tchan_info->allow_he)
+				chan_info->info |= WMI_CHAN_INFO_ALLOW_HE;
+			else if (tchan_info->allow_vht)
+				chan_info->info |= WMI_CHAN_INFO_ALLOW_VHT;
+			else if (tchan_info->allow_ht)
+				chan_info->info |= WMI_CHAN_INFO_ALLOW_HT;
+			if (tchan_info->half_rate)
+				chan_info->info |= WMI_CHAN_INFO_HALF_RATE;
+			if (tchan_info->quarter_rate)
+				chan_info->info |= WMI_CHAN_INFO_QUARTER_RATE;
+			if (tchan_info->psc_channel)
+				chan_info->info |= WMI_CHAN_INFO_PSC;
+
+			chan_info->info |= FIELD_PREP(WMI_CHAN_INFO_MODE,
+						      tchan_info->phy_mode);
+			*reg1 |= FIELD_PREP(WMI_CHAN_REG_INFO1_MIN_PWR,
+					    tchan_info->minpower);
+			*reg1 |= FIELD_PREP(WMI_CHAN_REG_INFO1_MAX_PWR,
+					    tchan_info->maxpower);
+			*reg1 |= FIELD_PREP(WMI_CHAN_REG_INFO1_MAX_REG_PWR,
+					    tchan_info->maxregpower);
+			*reg1 |= FIELD_PREP(WMI_CHAN_REG_INFO1_REG_CLS,
+					    tchan_info->reg_class_id);
+			*reg2 |= FIELD_PREP(WMI_CHAN_REG_INFO2_ANT_MAX,
+					    tchan_info->antennamax);
+
+			ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
+				   "WMI chan scan list chan[%d] = %u, chan_info->info %8x\n",
+				   i, chan_info->mhz, chan_info->info);
+
+			ptr += sizeof(*chan_info);
+
+			tchan_info++;
+		}
 
-		tchan_info++;
-	}
+		ret = ath11k_wmi_cmd_send(wmi, skb, WMI_SCAN_CHAN_LIST_CMDID);
+		if (ret) {
+			ath11k_warn(ar->ab, "failed to send WMI_SCAN_CHAN_LIST cmd\n");
+			dev_kfree_skb(skb);
+			return ret;
+		}
 
-	ret = ath11k_wmi_cmd_send(wmi, skb, WMI_SCAN_CHAN_LIST_CMDID);
-	if (ret) {
-		ath11k_warn(ar->ab, "failed to send WMI_SCAN_CHAN_LIST cmd\n");
-		dev_kfree_skb(skb);
+		num_sends++;
 	}
 
-	return ret;
+	return 0;
 }
 
 int ath11k_wmi_send_wmm_update_cmd_tlv(struct ath11k *ar, u32 vdev_id,
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 4937d02839fc..319ad7241e01 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -54,6 +54,8 @@ struct wmi_tlv {
 #define WLAN_SCAN_PARAMS_MAX_BSSID   4
 #define WLAN_SCAN_PARAMS_MAX_IE_LEN  256
 
+#define WMI_APPEND_TO_EXISTING_CHAN_LIST_FLAG 1
+
 #define WMI_BA_MODE_BUFFER_SIZE_256  3
 /*
  * HW mode config type replicated from FW header
@@ -3271,6 +3273,7 @@ struct  wmi_bcn_send_from_host_cmd {
 #define WMI_CHAN_INFO_QUARTER_RATE	BIT(15)
 #define WMI_CHAN_INFO_DFS_FREQ2		BIT(16)
 #define WMI_CHAN_INFO_ALLOW_HE		BIT(17)
+#define WMI_CHAN_INFO_PSC		BIT(18)
 
 #define WMI_CHAN_REG_INFO1_MIN_PWR	GENMASK(7, 0)
 #define WMI_CHAN_REG_INFO1_MAX_PWR	GENMASK(15, 8)
-- 
cgit 


From 74601ecfef6e46cd8bc98e881e620bfc81bfddfb Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:04 +0300
Subject: ath11k: Add support for 6g scan hint

Add support for 6Ghz short ssid and bssid hint mechanism
as part of scan command.

Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603001724.12161-9-pradeepc@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/wmi.c | 72 +++++++++++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/wmi.h | 22 +++++++++++
 2 files changed, 94 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 2f9a459c4230..8191cb0a997d 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -2005,6 +2005,8 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,
 	int i, ret, len;
 	u32 *tmp_ptr;
 	u8 extraie_len_with_pad = 0;
+	struct hint_short_ssid *s_ssid = NULL;
+	struct hint_bssid *hint_bssid = NULL;
 
 	len = sizeof(*cmd);
 
@@ -2026,6 +2028,14 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,
 			roundup(params->extraie.len, sizeof(u32));
 	len += extraie_len_with_pad;
 
+	if (params->num_hint_bssid)
+		len += TLV_HDR_SIZE +
+		       params->num_hint_bssid * sizeof(struct hint_bssid);
+
+	if (params->num_hint_s_ssid)
+		len += TLV_HDR_SIZE +
+		       params->num_hint_s_ssid * sizeof(struct hint_short_ssid);
+
 	skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, len);
 	if (!skb)
 		return -ENOMEM;
@@ -2126,6 +2136,68 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar,
 
 	ptr += extraie_len_with_pad;
 
+	if (params->num_hint_s_ssid) {
+		len = params->num_hint_s_ssid * sizeof(struct hint_short_ssid);
+		tlv = ptr;
+		tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_FIXED_STRUCT) |
+			      FIELD_PREP(WMI_TLV_LEN, len);
+		ptr += TLV_HDR_SIZE;
+		s_ssid = ptr;
+		for (i = 0; i < params->num_hint_s_ssid; ++i) {
+			s_ssid->freq_flags = params->hint_s_ssid[i].freq_flags;
+			s_ssid->short_ssid = params->hint_s_ssid[i].short_ssid;
+			s_ssid++;
+		}
+		ptr += len;
+	}
+
+	if (params->num_hint_bssid) {
+		len = params->num_hint_bssid * sizeof(struct hint_bssid);
+		tlv = ptr;
+		tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_FIXED_STRUCT) |
+			      FIELD_PREP(WMI_TLV_LEN, len);
+		ptr += TLV_HDR_SIZE;
+		hint_bssid = ptr;
+		for (i = 0; i < params->num_hint_bssid; ++i) {
+			hint_bssid->freq_flags =
+				params->hint_bssid[i].freq_flags;
+			ether_addr_copy(&params->hint_bssid[i].bssid.addr[0],
+					&hint_bssid->bssid.addr[0]);
+			hint_bssid++;
+		}
+	}
+
+	len = params->num_hint_s_ssid * sizeof(struct hint_short_ssid);
+	tlv = ptr;
+	tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_FIXED_STRUCT) |
+		      FIELD_PREP(WMI_TLV_LEN, len);
+	ptr += TLV_HDR_SIZE;
+	if (params->num_hint_s_ssid) {
+		s_ssid = ptr;
+		for (i = 0; i < params->num_hint_s_ssid; ++i) {
+			s_ssid->freq_flags = params->hint_s_ssid[i].freq_flags;
+			s_ssid->short_ssid = params->hint_s_ssid[i].short_ssid;
+			s_ssid++;
+		}
+	}
+	ptr += len;
+
+	len = params->num_hint_bssid * sizeof(struct hint_bssid);
+	tlv = ptr;
+	tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_FIXED_STRUCT) |
+		      FIELD_PREP(WMI_TLV_LEN, len);
+	ptr += TLV_HDR_SIZE;
+	if (params->num_hint_bssid) {
+		hint_bssid = ptr;
+		for (i = 0; i < params->num_hint_bssid; ++i) {
+			hint_bssid->freq_flags =
+				params->hint_bssid[i].freq_flags;
+			ether_addr_copy(&params->hint_bssid[i].bssid.addr[0],
+					&hint_bssid->bssid.addr[0]);
+			hint_bssid++;
+		}
+	}
+
 	ret = ath11k_wmi_cmd_send(wmi, skb,
 				  WMI_START_SCAN_CMDID);
 	if (ret) {
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 319ad7241e01..1162bd7a5f87 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -50,6 +50,14 @@ struct wmi_tlv {
 #define WMI_MAX_MEM_REQS        32
 #define ATH11K_MAX_HW_LISTEN_INTERVAL 5
 
+#define WLAN_SCAN_MAX_HINT_S_SSID        10
+#define WLAN_SCAN_MAX_HINT_BSSID         10
+#define MAX_RNR_BSS                    5
+
+#define WLAN_SCAN_MAX_HINT_S_SSID        10
+#define WLAN_SCAN_MAX_HINT_BSSID         10
+#define MAX_RNR_BSS                    5
+
 #define WLAN_SCAN_PARAMS_MAX_SSID    16
 #define WLAN_SCAN_PARAMS_MAX_BSSID   4
 #define WLAN_SCAN_PARAMS_MAX_IE_LEN  256
@@ -3105,6 +3113,16 @@ enum {
 	((flag) |= (((mode) << WMI_SCAN_DWELL_MODE_SHIFT) & \
 		    WMI_SCAN_DWELL_MODE_MASK))
 
+struct hint_short_ssid {
+	u32 freq_flags;
+	u32 short_ssid;
+};
+
+struct hint_bssid {
+	u32 freq_flags;
+	struct wmi_mac_addr bssid;
+};
+
 struct scan_req_params {
 	u32 scan_id;
 	u32 scan_req_id;
@@ -3184,6 +3202,10 @@ struct scan_req_params {
 	struct element_info extraie;
 	struct element_info htcap;
 	struct element_info vhtcap;
+	u32 num_hint_s_ssid;
+	u32 num_hint_bssid;
+	struct hint_short_ssid hint_s_ssid[WLAN_SCAN_MAX_HINT_S_SSID];
+	struct hint_bssid hint_bssid[WLAN_SCAN_MAX_HINT_BSSID];
 };
 
 struct wmi_ssid_arg {
-- 
cgit 


From f28b7b78aad32bcbec49e77baf140be14c7dd99b Mon Sep 17 00:00:00 2001
From: Rajkumar Manoharan <rmanohar@codeaurora.org>
Date: Tue, 9 Jun 2020 09:31:05 +0300
Subject: ath11k: build HE 6 GHz capability

Build 6 GHz band capability from HT and VHT capabilities reported
by firmware.

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591057888-2862-1-git-send-email-rmanohar@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/core.h |  1 +
 drivers/net/wireless/ath/ath11k/mac.c  | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 67dee661d6bb..0cb844aceba4 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -552,6 +552,7 @@ struct ath11k_band_cap {
 	u32 he_mcs;
 	u32 he_cap_phy_info[PSOC_HOST_MAX_PHY_SIZE];
 	struct ath11k_ppe_threshold he_ppet;
+	u16 he_6ghz_capa;
 };
 
 struct ath11k_pdev_cap {
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index ea732f973079..b3ae1a0bceb3 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -3615,6 +3615,35 @@ ath11k_mac_filter_he_cap_mesh(struct ieee80211_he_cap_elem *he_cap_elem)
 	he_cap_elem->phy_cap_info[9] &= ~m;
 }
 
+static __le16 ath11k_mac_setup_he_6ghz_cap(struct ath11k_pdev_cap *pcap,
+					   struct ath11k_band_cap *bcap)
+{
+	u8 val;
+
+	bcap->he_6ghz_capa = IEEE80211_HT_MPDU_DENSITY_NONE;
+	if (bcap->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
+		bcap->he_6ghz_capa |=
+			FIELD_PREP(IEEE80211_HE_6GHZ_CAP_SM_PS,
+				   WLAN_HT_CAP_SM_PS_DYNAMIC);
+	else
+		bcap->he_6ghz_capa |=
+			FIELD_PREP(IEEE80211_HE_6GHZ_CAP_SM_PS,
+				   WLAN_HT_CAP_SM_PS_DISABLED);
+	val = FIELD_GET(IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK,
+			pcap->vht_cap);
+	bcap->he_6ghz_capa |=
+		FIELD_PREP(IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP, val);
+	val = FIELD_GET(IEEE80211_VHT_CAP_MAX_MPDU_MASK, pcap->vht_cap);
+	bcap->he_6ghz_capa |=
+		FIELD_PREP(IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN, val);
+	if (pcap->vht_cap & IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN)
+		bcap->he_6ghz_capa |= IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS;
+	if (pcap->vht_cap & IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN)
+		bcap->he_6ghz_capa |= IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS;
+
+	return cpu_to_le16(bcap->he_6ghz_capa);
+}
+
 static int ath11k_mac_copy_he_cap(struct ath11k *ar,
 				  struct ath11k_pdev_cap *cap,
 				  struct ieee80211_sband_iftype_data *data,
@@ -3697,6 +3726,11 @@ static int ath11k_mac_copy_he_cap(struct ath11k *ar,
 		    IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT)
 			ath11k_gen_ppe_thresh(&band_cap->he_ppet,
 					      he_cap->ppe_thres);
+
+		if (band == NL80211_BAND_6GHZ) {
+			data[idx].he_6ghz_capa.capa =
+				ath11k_mac_setup_he_6ghz_cap(cap, band_cap);
+		}
 		idx++;
 	}
 
-- 
cgit 


From bd6478559e27414e7def8247136b0dcb1e1392f8 Mon Sep 17 00:00:00 2001
From: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Date: Tue, 9 Jun 2020 13:03:33 +0530
Subject: ath11k: Add direct buffer ring support

Add direct buffer ring (dbring) with helper API, which is used by the
spectral scan. Initialise the direct buffer ring based on the dma ring
capability, which get announced in the wmi service ready extended event.
This ring is slightly changed from data path rings. Compare to data path
ring this ring shares the hp and tp address to firmware though WMI commands.
Also the replenish buffer size is derived from firmware announcement.
driver receive indication through WMI event
WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID.

Tested-on: IPQ8074 WLAN.HK.2.1.0.1-01228-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591688014-26441-1-git-send-email-periyasa@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/Makefile |   3 +-
 drivers/net/wireless/ath/ath11k/core.h   |   4 +
 drivers/net/wireless/ath/ath11k/dbring.c | 353 +++++++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/dbring.h |  79 +++++++
 drivers/net/wireless/ath/ath11k/dp.c     |   3 +-
 drivers/net/wireless/ath/ath11k/wmi.c    | 226 +++++++++++++++++++-
 drivers/net/wireless/ath/ath11k/wmi.h    |  81 ++++++-
 7 files changed, 744 insertions(+), 5 deletions(-)
 create mode 100644 drivers/net/wireless/ath/ath11k/dbring.c
 create mode 100644 drivers/net/wireless/ath/ath11k/dbring.h

diff --git a/drivers/net/wireless/ath/ath11k/Makefile b/drivers/net/wireless/ath/ath11k/Makefile
index fe7736e53583..d17a3b418178 100644
--- a/drivers/net/wireless/ath/ath11k/Makefile
+++ b/drivers/net/wireless/ath/ath11k/Makefile
@@ -15,7 +15,8 @@ ath11k-y += core.o \
 	    dp_rx.o \
 	    debug.o \
 	    ce.o \
-	    peer.o
+	    peer.o \
+	    dbring.o
 
 ath11k-$(CONFIG_ATH11K_DEBUGFS) += debug_htt_stats.o debugfs_sta.o
 ath11k-$(CONFIG_NL80211_TESTMODE) += testmode.o
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 0cb844aceba4..a715fe61c01b 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -21,6 +21,7 @@
 #include "hal_rx.h"
 #include "reg.h"
 #include "thermal.h"
+#include "dbring.h"
 
 #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
 
@@ -673,6 +674,9 @@ struct ath11k_base {
 	/* Round robbin based TCL ring selector */
 	atomic_t tcl_ring_selector;
 
+	struct ath11k_dbring_cap *db_caps;
+	u32 num_db_cap;
+
 	/* must be last */
 	u8 drv_priv[0] __aligned(sizeof(void *));
 };
diff --git a/drivers/net/wireless/ath/ath11k/dbring.c b/drivers/net/wireless/ath/ath11k/dbring.c
new file mode 100644
index 000000000000..b96258489456
--- /dev/null
+++ b/drivers/net/wireless/ath/ath11k/dbring.c
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
+ */
+
+#include "core.h"
+#include "debug.h"
+
+static int ath11k_dbring_bufs_replenish(struct ath11k *ar,
+					struct ath11k_dbring *ring,
+					struct ath11k_dbring_element *buff,
+					gfp_t gfp)
+{
+	struct ath11k_base *ab = ar->ab;
+	struct hal_srng *srng;
+	dma_addr_t paddr;
+	void *ptr_aligned, *ptr_unaligned, *desc;
+	int ret;
+	int buf_id;
+	u32 cookie;
+
+	srng = &ab->hal.srng_list[ring->refill_srng.ring_id];
+
+	lockdep_assert_held(&srng->lock);
+
+	ath11k_hal_srng_access_begin(ab, srng);
+
+	ptr_unaligned = buff->payload;
+	ptr_aligned = PTR_ALIGN(ptr_unaligned, ring->buf_align);
+	paddr = dma_map_single(ab->dev, ptr_aligned, ring->buf_sz,
+			       DMA_FROM_DEVICE);
+
+	ret = dma_mapping_error(ab->dev, paddr);
+	if (ret)
+		goto err;
+
+	spin_lock_bh(&ring->idr_lock);
+	buf_id = idr_alloc(&ring->bufs_idr, buff, 0, ring->bufs_max, gfp);
+	spin_unlock_bh(&ring->idr_lock);
+	if (buf_id < 0) {
+		ret = -ENOBUFS;
+		goto err_dma_unmap;
+	}
+
+	desc = ath11k_hal_srng_src_get_next_entry(ab, srng);
+	if (!desc) {
+		ret = -ENOENT;
+		goto err_idr_remove;
+	}
+
+	buff->paddr = paddr;
+
+	cookie = FIELD_PREP(DP_RXDMA_BUF_COOKIE_PDEV_ID, ar->pdev_idx) |
+		 FIELD_PREP(DP_RXDMA_BUF_COOKIE_BUF_ID, buf_id);
+
+	ath11k_hal_rx_buf_addr_info_set(desc, paddr, cookie, 0);
+
+	ath11k_hal_srng_access_end(ab, srng);
+
+	return 0;
+
+err_idr_remove:
+	spin_lock_bh(&ring->idr_lock);
+	idr_remove(&ring->bufs_idr, buf_id);
+	spin_unlock_bh(&ring->idr_lock);
+err_dma_unmap:
+	dma_unmap_single(ab->dev, paddr, ring->buf_sz,
+			 DMA_FROM_DEVICE);
+err:
+	ath11k_hal_srng_access_end(ab, srng);
+	return ret;
+}
+
+static int ath11k_dbring_fill_bufs(struct ath11k *ar,
+				   struct ath11k_dbring *ring,
+				   gfp_t gfp)
+{
+	struct ath11k_dbring_element *buff;
+	struct hal_srng *srng;
+	int num_remain, req_entries, num_free;
+	u32 align;
+	int size, ret;
+
+	srng = &ar->ab->hal.srng_list[ring->refill_srng.ring_id];
+
+	spin_lock_bh(&srng->lock);
+
+	num_free = ath11k_hal_srng_src_num_free(ar->ab, srng, true);
+	req_entries = min(num_free, ring->bufs_max);
+	num_remain = req_entries;
+	align = ring->buf_align;
+	size = sizeof(*buff) + ring->buf_sz + align - 1;
+
+	while (num_remain > 0) {
+		buff = kzalloc(size, gfp);
+		if (!buff)
+			break;
+
+		ret = ath11k_dbring_bufs_replenish(ar, ring, buff, gfp);
+		if (ret) {
+			ath11k_warn(ar->ab, "failed to replenish db ring num_remain %d req_ent %d\n",
+				    num_remain, req_entries);
+			kfree(buff);
+			break;
+		}
+		num_remain--;
+	}
+
+	spin_unlock_bh(&srng->lock);
+
+	return num_remain;
+}
+
+int ath11k_dbring_wmi_cfg_setup(struct ath11k *ar,
+				struct ath11k_dbring *ring,
+				enum wmi_direct_buffer_module id)
+{
+	struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd param = {0};
+	int ret;
+
+	if (id >= WMI_DIRECT_BUF_MAX)
+		return -EINVAL;
+
+	param.pdev_id		= DP_SW2HW_MACID(ring->pdev_id);
+	param.module_id		= id;
+	param.base_paddr_lo	= lower_32_bits(ring->refill_srng.paddr);
+	param.base_paddr_hi	= upper_32_bits(ring->refill_srng.paddr);
+	param.head_idx_paddr_lo	= lower_32_bits(ring->hp_addr);
+	param.head_idx_paddr_hi = upper_32_bits(ring->hp_addr);
+	param.tail_idx_paddr_lo = lower_32_bits(ring->tp_addr);
+	param.tail_idx_paddr_hi = upper_32_bits(ring->tp_addr);
+	param.num_elems		= ring->bufs_max;
+	param.buf_size		= ring->buf_sz;
+	param.num_resp_per_event = ring->num_resp_per_event;
+	param.event_timeout_ms	= ring->event_timeout_ms;
+
+	ret = ath11k_wmi_pdev_dma_ring_cfg(ar, &param);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to setup db ring cfg\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath11k_dbring_set_cfg(struct ath11k *ar, struct ath11k_dbring *ring,
+			  u32 num_resp_per_event, u32 event_timeout_ms,
+			  int (*handler)(struct ath11k *,
+					 struct ath11k_dbring_data *))
+{
+	if (WARN_ON(!ring))
+		return -EINVAL;
+
+	ring->num_resp_per_event = num_resp_per_event;
+	ring->event_timeout_ms = event_timeout_ms;
+	ring->handler = handler;
+
+	return 0;
+}
+
+int ath11k_dbring_buf_setup(struct ath11k *ar,
+			    struct ath11k_dbring *ring,
+			    struct ath11k_dbring_cap *db_cap)
+{
+	struct ath11k_base *ab = ar->ab;
+	struct hal_srng *srng;
+	int ret;
+
+	srng = &ab->hal.srng_list[ring->refill_srng.ring_id];
+	ring->bufs_max = ring->refill_srng.size /
+			 ath11k_hal_srng_get_entrysize(HAL_RXDMA_DIR_BUF);
+
+	ring->buf_sz = db_cap->min_buf_sz;
+	ring->buf_align = db_cap->min_buf_align;
+	ring->pdev_id = db_cap->pdev_id;
+	ring->hp_addr = ath11k_hal_srng_get_hp_addr(ar->ab, srng);
+	ring->tp_addr = ath11k_hal_srng_get_tp_addr(ar->ab, srng);
+
+	ret = ath11k_dbring_fill_bufs(ar, ring, GFP_KERNEL);
+
+	return ret;
+}
+
+int ath11k_dbring_srng_setup(struct ath11k *ar, struct ath11k_dbring *ring,
+			     int ring_num, int num_entries)
+{
+	int ret;
+
+	ret = ath11k_dp_srng_setup(ar->ab, &ring->refill_srng, HAL_RXDMA_DIR_BUF,
+				   ring_num, ar->pdev_idx, num_entries);
+	if (ret < 0) {
+		ath11k_warn(ar->ab, "failed to setup srng: %d ring_id %d\n",
+			    ret, ring_num);
+		goto err;
+	}
+
+	return 0;
+err:
+	ath11k_dp_srng_cleanup(ar->ab, &ring->refill_srng);
+	return ret;
+}
+
+int ath11k_dbring_get_cap(struct ath11k_base *ab,
+			  u8 pdev_idx,
+			  enum wmi_direct_buffer_module id,
+			  struct ath11k_dbring_cap *db_cap)
+{
+	int i;
+
+	if (!ab->num_db_cap || !ab->db_caps)
+		return -ENOENT;
+
+	if (id >= WMI_DIRECT_BUF_MAX)
+		return -EINVAL;
+
+	for (i = 0; i < ab->num_db_cap; i++) {
+		if (pdev_idx == ab->db_caps[i].pdev_id &&
+		    id == ab->db_caps[i].id) {
+			*db_cap = ab->db_caps[i];
+
+			return 0;
+		}
+	}
+
+	return -ENOENT;
+}
+
+int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
+				       struct ath11k_dbring_buf_release_event *ev)
+{
+	struct ath11k_dbring *ring;
+	struct hal_srng *srng;
+	struct ath11k *ar;
+	struct ath11k_dbring_element *buff;
+	struct ath11k_dbring_data handler_data;
+	struct ath11k_buffer_addr desc;
+	u8 *vaddr_unalign;
+	u32 num_entry, num_buff_reaped;
+	u8 pdev_idx, rbm;
+	u32 cookie;
+	int buf_id;
+	int size;
+	dma_addr_t paddr;
+	int ret = 0;
+
+	pdev_idx = ev->fixed.pdev_id;
+
+	if (pdev_idx >= ab->num_radios) {
+		ath11k_warn(ab, "Invalid pdev id %d\n", pdev_idx);
+		return -EINVAL;
+	}
+
+	if (ev->fixed.num_buf_release_entry !=
+	    ev->fixed.num_meta_data_entry) {
+		ath11k_warn(ab, "Buffer entry %d mismatch meta entry %d\n",
+			    ev->fixed.num_buf_release_entry,
+			    ev->fixed.num_meta_data_entry);
+		return -EINVAL;
+	}
+
+	ar = ab->pdevs[pdev_idx].ar;
+
+	rcu_read_lock();
+	if (!rcu_dereference(ab->pdevs_active[pdev_idx])) {
+		ret = -EINVAL;
+		goto rcu_unlock;
+	}
+
+	switch (ev->fixed.module_id) {
+	default:
+		ring = NULL;
+		ath11k_warn(ab, "Recv dma buffer release ev on unsupp module %d\n",
+			    ev->fixed.module_id);
+		break;
+	}
+
+	if (!ring) {
+		ret = -EINVAL;
+		goto rcu_unlock;
+	}
+
+	srng = &ab->hal.srng_list[ring->refill_srng.ring_id];
+	num_entry = ev->fixed.num_buf_release_entry;
+	size = sizeof(*buff) + ring->buf_sz + ring->buf_align - 1;
+	num_buff_reaped = 0;
+
+	spin_lock_bh(&srng->lock);
+
+	while (num_buff_reaped < num_entry) {
+		desc.info0 = ev->buf_entry[num_buff_reaped].paddr_lo;
+		desc.info1 = ev->buf_entry[num_buff_reaped].paddr_hi;
+		handler_data.meta = ev->meta_data[num_buff_reaped];
+
+		num_buff_reaped++;
+
+		ath11k_hal_rx_buf_addr_info_get(&desc, &paddr, &cookie, &rbm);
+
+		buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID, cookie);
+
+		spin_lock_bh(&ring->idr_lock);
+		buff = idr_find(&ring->bufs_idr, buf_id);
+		if (!buff) {
+			spin_unlock_bh(&ring->idr_lock);
+			continue;
+		}
+		idr_remove(&ring->bufs_idr, buf_id);
+		spin_unlock_bh(&ring->idr_lock);
+
+		dma_unmap_single(ab->dev, buff->paddr, ring->buf_sz,
+				 DMA_FROM_DEVICE);
+
+		if (ring->handler) {
+			vaddr_unalign = buff->payload;
+			handler_data.data = PTR_ALIGN(vaddr_unalign,
+						      ring->buf_align);
+			handler_data.data_sz = ring->buf_sz;
+
+			ring->handler(ar, &handler_data);
+		}
+
+		memset(buff, 0, size);
+		ath11k_dbring_bufs_replenish(ar, ring, buff, GFP_ATOMIC);
+	}
+
+	spin_unlock_bh(&srng->lock);
+
+rcu_unlock:
+	rcu_read_unlock();
+
+	return ret;
+}
+
+void ath11k_dbring_srng_cleanup(struct ath11k *ar, struct ath11k_dbring *ring)
+{
+	ath11k_dp_srng_cleanup(ar->ab, &ring->refill_srng);
+}
+
+void ath11k_dbring_buf_cleanup(struct ath11k *ar, struct ath11k_dbring *ring)
+{
+	struct ath11k_dbring_element *buff;
+	int buf_id;
+
+	spin_lock_bh(&ring->idr_lock);
+	idr_for_each_entry(&ring->bufs_idr, buff, buf_id) {
+		idr_remove(&ring->bufs_idr, buf_id);
+		dma_unmap_single(ar->ab->dev, buff->paddr,
+				 ring->buf_sz, DMA_FROM_DEVICE);
+		kfree(buff);
+	}
+
+	idr_destroy(&ring->bufs_idr);
+	spin_unlock_bh(&ring->idr_lock);
+}
diff --git a/drivers/net/wireless/ath/ath11k/dbring.h b/drivers/net/wireless/ath/ath11k/dbring.h
new file mode 100644
index 000000000000..f7fce9ef9c36
--- /dev/null
+++ b/drivers/net/wireless/ath/ath11k/dbring.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
+ */
+
+#ifndef ATH11K_DBRING_H
+#define ATH11K_DBRING_H
+
+#include <linux/types.h>
+#include <linux/idr.h>
+#include <linux/spinlock.h>
+#include "dp.h"
+
+struct ath11k_dbring_element {
+	dma_addr_t paddr;
+	u8 payload[0];
+};
+
+struct ath11k_dbring_data {
+	void *data;
+	u32 data_sz;
+	struct wmi_dma_buf_release_meta_data meta;
+};
+
+struct ath11k_dbring_buf_release_event {
+	struct ath11k_wmi_dma_buf_release_fixed_param fixed;
+	struct wmi_dma_buf_release_entry *buf_entry;
+	struct wmi_dma_buf_release_meta_data *meta_data;
+	u32 num_buf_entry;
+	u32 num_meta;
+};
+
+struct ath11k_dbring_cap {
+	u32 pdev_id;
+	enum wmi_direct_buffer_module id;
+	u32 min_elem;
+	u32 min_buf_sz;
+	u32 min_buf_align;
+};
+
+struct ath11k_dbring {
+	struct dp_srng refill_srng;
+	struct idr bufs_idr;
+	/* Protects bufs_idr */
+	spinlock_t idr_lock;
+	dma_addr_t tp_addr;
+	dma_addr_t hp_addr;
+	int bufs_max;
+	u32 pdev_id;
+	u32 buf_sz;
+	u32 buf_align;
+	u32 num_resp_per_event;
+	u32 event_timeout_ms;
+	int (*handler)(struct ath11k *, struct ath11k_dbring_data *);
+};
+
+int ath11k_dbring_set_cfg(struct ath11k *ar,
+			  struct ath11k_dbring *ring,
+			  u32 num_resp_per_event,
+			  u32 event_timeout_ms,
+			  int (*handler)(struct ath11k *,
+					 struct ath11k_dbring_data *));
+int ath11k_dbring_wmi_cfg_setup(struct ath11k *ar,
+				struct ath11k_dbring *ring,
+				enum wmi_direct_buffer_module id);
+int ath11k_dbring_buf_setup(struct ath11k *ar,
+			    struct ath11k_dbring *ring,
+			    struct ath11k_dbring_cap *db_cap);
+int ath11k_dbring_srng_setup(struct ath11k *ar, struct ath11k_dbring *ring,
+			     int ring_num, int num_entries);
+int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
+				       struct ath11k_dbring_buf_release_event *ev);
+int ath11k_dbring_get_cap(struct ath11k_base *ab,
+			  u8 pdev_idx,
+			  enum wmi_direct_buffer_module id,
+			  struct ath11k_dbring_cap *db_cap);
+void ath11k_dbring_srng_cleanup(struct ath11k *ar, struct ath11k_dbring *ring);
+void ath11k_dbring_buf_cleanup(struct ath11k *ar, struct ath11k_dbring *ring);
+#endif /* ATH11K_DBRING_H */
diff --git a/drivers/net/wireless/ath/ath11k/dp.c b/drivers/net/wireless/ath/ath11k/dp.c
index 9ae743e528af..1d64c3c51ac9 100644
--- a/drivers/net/wireless/ath/ath11k/dp.c
+++ b/drivers/net/wireless/ath/ath11k/dp.c
@@ -172,11 +172,12 @@ int ath11k_dp_srng_setup(struct ath11k_base *ab, struct dp_srng *ring,
 	case HAL_RXDMA_DST:
 	case HAL_RXDMA_MONITOR_DST:
 	case HAL_RXDMA_MONITOR_DESC:
-	case HAL_RXDMA_DIR_BUF:
 		params.intr_batch_cntr_thres_entries =
 					HAL_SRNG_INT_BATCH_THRESHOLD_OTHER;
 		params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_OTHER;
 		break;
+	case HAL_RXDMA_DIR_BUF:
+		break;
 	default:
 		ath11k_warn(ab, "Not a valid ring type in dp :%d\n", type);
 		return -EINVAL;
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 8191cb0a997d..6033ec4e11e5 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -27,6 +27,11 @@ struct wmi_tlv_svc_ready_parse {
 	bool wmi_svc_bitmap_done;
 };
 
+struct wmi_tlv_dma_ring_caps_parse {
+	struct wmi_dma_ring_capabilities *dma_ring_caps;
+	u32 n_dma_ring_caps;
+};
+
 struct wmi_tlv_svc_rdy_ext_parse {
 	struct ath11k_service_ext_param param;
 	struct wmi_soc_mac_phy_hw_mode_caps *hw_caps;
@@ -39,9 +44,19 @@ struct wmi_tlv_svc_rdy_ext_parse {
 	struct wmi_soc_hal_reg_capabilities *soc_hal_reg_caps;
 	struct wmi_hal_reg_capabilities_ext *ext_hal_reg_caps;
 	u32 n_ext_hal_reg_caps;
+	struct wmi_tlv_dma_ring_caps_parse dma_caps_parse;
 	bool hw_mode_done;
 	bool mac_phy_done;
 	bool ext_hal_reg_done;
+	bool mac_phy_chainmask_combo_done;
+	bool mac_phy_chainmask_cap_done;
+	bool oem_dma_ring_cap_done;
+	bool dma_ring_cap_done;
+};
+
+struct wmi_tlv_svc_rdy_ext2_parse {
+	struct wmi_tlv_dma_ring_caps_parse dma_caps_parse;
+	bool dma_ring_cap_done;
 };
 
 struct wmi_tlv_rdy_parse {
@@ -3373,6 +3388,52 @@ int ath11k_wmi_cmd_init(struct ath11k_base *ab)
 	return ath11k_init_cmd_send(&wmi_sc->wmi[0], &init_param);
 }
 
+int ath11k_wmi_pdev_dma_ring_cfg(struct ath11k *ar,
+				 struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd *param)
+{
+	struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd *cmd;
+	struct sk_buff *skb;
+	int ret;
+
+	skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd *)skb->data;
+	cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_DMA_RING_CFG_REQ) |
+			  FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+
+	cmd->pdev_id		= param->pdev_id;
+	cmd->module_id		= param->module_id;
+	cmd->base_paddr_lo	= param->base_paddr_lo;
+	cmd->base_paddr_hi	= param->base_paddr_hi;
+	cmd->head_idx_paddr_lo	= param->head_idx_paddr_lo;
+	cmd->head_idx_paddr_hi	= param->head_idx_paddr_hi;
+	cmd->tail_idx_paddr_lo	= param->tail_idx_paddr_lo;
+	cmd->tail_idx_paddr_hi	= param->tail_idx_paddr_hi;
+	cmd->num_elems		= param->num_elems;
+	cmd->buf_size		= param->buf_size;
+	cmd->num_resp_per_event	= param->num_resp_per_event;
+	cmd->event_timeout_ms	= param->event_timeout_ms;
+
+	ret = ath11k_wmi_cmd_send(ar->wmi, skb,
+				  WMI_PDEV_DMA_RING_CFG_REQ_CMDID);
+	if (ret) {
+		ath11k_warn(ar->ab,
+			    "failed to send dma ring cfg req wmi cmd\n");
+		goto err;
+	}
+
+	ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
+		   "WMI DMA ring cfg req cmd pdev_id 0x%x\n",
+		   param->pdev_id);
+
+	return 0;
+err:
+	dev_kfree_skb(skb);
+	return ret;
+}
+
 static int ath11k_wmi_tlv_hw_mode_caps_parse(struct ath11k_base *soc,
 					     u16 tag, u16 len,
 					     const void *ptr, void *data)
@@ -3553,6 +3614,95 @@ static int ath11k_wmi_tlv_ext_soc_hal_reg_caps_parse(struct ath11k_base *soc,
 	return 0;
 }
 
+static int ath11k_wmi_tlv_dma_ring_caps_parse(struct ath11k_base *soc,
+					      u16 tag, u16 len,
+					      const void *ptr, void *data)
+{
+	struct wmi_tlv_dma_ring_caps_parse *parse = data;
+
+	if (tag != WMI_TAG_DMA_RING_CAPABILITIES)
+		return -EPROTO;
+
+	parse->n_dma_ring_caps++;
+	return 0;
+}
+
+static int ath11k_wmi_alloc_dbring_caps(struct ath11k_base *ab,
+					u32 num_cap)
+{
+	size_t sz;
+	void *ptr;
+
+	sz = num_cap * sizeof(struct ath11k_dbring_cap);
+	ptr = kzalloc(sz, GFP_ATOMIC);
+	if (!ptr)
+		return -ENOMEM;
+
+	ab->db_caps = ptr;
+	ab->num_db_cap = num_cap;
+
+	return 0;
+}
+
+static void ath11k_wmi_free_dbring_caps(struct ath11k_base *ab)
+{
+	kfree(ab->db_caps);
+	ab->db_caps = NULL;
+}
+
+static int ath11k_wmi_tlv_dma_ring_caps(struct ath11k_base *ab,
+					u16 len, const void *ptr, void *data)
+{
+	struct wmi_tlv_dma_ring_caps_parse *dma_caps_parse = data;
+	struct wmi_dma_ring_capabilities *dma_caps;
+	struct ath11k_dbring_cap *dir_buff_caps;
+	int ret;
+	u32 i;
+
+	dma_caps_parse->n_dma_ring_caps = 0;
+	dma_caps = (struct wmi_dma_ring_capabilities *)ptr;
+	ret = ath11k_wmi_tlv_iter(ab, ptr, len,
+				  ath11k_wmi_tlv_dma_ring_caps_parse,
+				  dma_caps_parse);
+	if (ret) {
+		ath11k_warn(ab, "failed to parse dma ring caps tlv %d\n", ret);
+		return ret;
+	}
+
+	if (!dma_caps_parse->n_dma_ring_caps)
+		return 0;
+
+	if (ab->num_db_cap) {
+		ath11k_warn(ab, "Already processed, so ignoring dma ring caps\n");
+		return 0;
+	}
+
+	ret = ath11k_wmi_alloc_dbring_caps(ab, dma_caps_parse->n_dma_ring_caps);
+	if (ret)
+		return ret;
+
+	dir_buff_caps = ab->db_caps;
+	for (i = 0; i < dma_caps_parse->n_dma_ring_caps; i++) {
+		if (dma_caps[i].module_id >= WMI_DIRECT_BUF_MAX) {
+			ath11k_warn(ab, "Invalid module id %d\n", dma_caps[i].module_id);
+			ret = -EINVAL;
+			goto free_dir_buff;
+		}
+
+		dir_buff_caps[i].id = dma_caps[i].module_id;
+		dir_buff_caps[i].pdev_id = DP_HW2SW_MACID(dma_caps[i].pdev_id);
+		dir_buff_caps[i].min_elem = dma_caps[i].min_elem;
+		dir_buff_caps[i].min_buf_sz = dma_caps[i].min_buf_sz;
+		dir_buff_caps[i].min_buf_align = dma_caps[i].min_buf_align;
+	}
+
+	return 0;
+
+free_dir_buff:
+	ath11k_wmi_free_dbring_caps(ab);
+	return ret;
+}
+
 static int ath11k_wmi_tlv_svc_rdy_ext_parse(struct ath11k_base *ab,
 					    u16 tag, u16 len,
 					    const void *ptr, void *data)
@@ -3609,7 +3759,19 @@ static int ath11k_wmi_tlv_svc_rdy_ext_parse(struct ath11k_base *ab,
 				return ret;
 
 			svc_rdy_ext->ext_hal_reg_done = true;
-			complete(&ab->wmi_ab.service_ready);
+		} else if (!svc_rdy_ext->mac_phy_chainmask_combo_done) {
+			svc_rdy_ext->mac_phy_chainmask_combo_done = true;
+		} else if (!svc_rdy_ext->mac_phy_chainmask_cap_done) {
+			svc_rdy_ext->mac_phy_chainmask_cap_done = true;
+		} else if (!svc_rdy_ext->oem_dma_ring_cap_done) {
+			svc_rdy_ext->oem_dma_ring_cap_done = true;
+		} else if (!svc_rdy_ext->dma_ring_cap_done) {
+			ret = ath11k_wmi_tlv_dma_ring_caps(ab, len, ptr,
+							   &svc_rdy_ext->dma_caps_parse);
+			if (ret)
+				return ret;
+
+			svc_rdy_ext->dma_ring_cap_done = true;
 		}
 		break;
 
@@ -3630,11 +3792,66 @@ static int ath11k_service_ready_ext_event(struct ath11k_base *ab,
 				  &svc_rdy_ext);
 	if (ret) {
 		ath11k_warn(ab, "failed to parse tlv %d\n", ret);
-		return ret;
+		goto err;
 	}
 
+	if (!test_bit(WMI_TLV_SERVICE_EXT2_MSG, ab->wmi_ab.svc_map))
+		complete(&ab->wmi_ab.service_ready);
+
 	kfree(svc_rdy_ext.mac_phy_caps);
 	return 0;
+
+err:
+	ath11k_wmi_free_dbring_caps(ab);
+	return ret;
+}
+
+static int ath11k_wmi_tlv_svc_rdy_ext2_parse(struct ath11k_base *ab,
+					     u16 tag, u16 len,
+					     const void *ptr, void *data)
+{
+	struct wmi_tlv_svc_rdy_ext2_parse *parse = data;
+	int ret;
+
+	switch (tag) {
+	case WMI_TAG_ARRAY_STRUCT:
+		if (!parse->dma_ring_cap_done) {
+			ret = ath11k_wmi_tlv_dma_ring_caps(ab, len, ptr,
+							   &parse->dma_caps_parse);
+			if (ret)
+				return ret;
+
+			parse->dma_ring_cap_done = true;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int ath11k_service_ready_ext2_event(struct ath11k_base *ab,
+					   struct sk_buff *skb)
+{
+	struct wmi_tlv_svc_rdy_ext2_parse svc_rdy_ext2 = { };
+	int ret;
+
+	ret = ath11k_wmi_tlv_iter(ab, skb->data, skb->len,
+				  ath11k_wmi_tlv_svc_rdy_ext2_parse,
+				  &svc_rdy_ext2);
+	if (ret) {
+		ath11k_warn(ab, "failed to parse ext2 event tlv %d\n", ret);
+		goto err;
+	}
+
+	complete(&ab->wmi_ab.service_ready);
+
+	return 0;
+
+err:
+	ath11k_wmi_free_dbring_caps(ab);
+	return ret;
 }
 
 static int ath11k_pull_vdev_start_resp_tlv(struct ath11k_base *ab, struct sk_buff *skb,
@@ -6045,6 +6262,9 @@ static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb)
 	case WMI_SERVICE_READY_EXT_EVENTID:
 		ath11k_service_ready_ext_event(ab, skb);
 		break;
+	case WMI_SERVICE_READY_EXT2_EVENTID:
+		ath11k_service_ready_ext2_event(ab, skb);
+		break;
 	case WMI_REG_CHAN_LIST_CC_EVENTID:
 		ath11k_reg_chan_list_event(ab, skb);
 		break;
@@ -6325,4 +6545,6 @@ void ath11k_wmi_detach(struct ath11k_base *ab)
 
 	for (i = 0; i < ab->htc.wmi_ep_count; i++)
 		ath11k_wmi_pdev_detach(ab, i);
+
+	ath11k_wmi_free_dbring_caps(ab);
 }
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 1162bd7a5f87..82c493b94ed8 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -24,6 +24,8 @@ struct ath11k_fw_stats;
 #define HE_PET_8_USEC            1
 #define HE_PET_16_USEC           2
 
+#define WMI_MAX_CHAINS		 8
+
 #define WMI_MAX_NUM_SS                    MAX_HE_NSS
 #define WMI_MAX_NUM_RU                    MAX_HE_RU
 
@@ -596,6 +598,11 @@ enum wmi_tlv_event_id {
 	WMI_PDEV_DMA_RING_CFG_RSP_EVENTID,
 	WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID,
 	WMI_PDEV_CTL_FAILSAFE_CHECK_EVENTID,
+	WMI_PDEV_CSC_SWITCH_COUNT_STATUS_EVENTID,
+	WMI_PDEV_COLD_BOOT_CAL_DATA_EVENTID,
+	WMI_PDEV_RAP_INFO_EVENTID,
+	WMI_CHAN_RF_CHARACTERIZATION_INFO_EVENTID,
+	WMI_SERVICE_READY_EXT2_EVENTID,
 	WMI_VDEV_START_RESP_EVENTID = WMI_TLV_CMD(WMI_GRP_VDEV),
 	WMI_VDEV_STOPPED_EVENTID,
 	WMI_VDEV_INSTALL_KEY_COMPLETE_EVENTID,
@@ -2024,9 +2031,9 @@ enum wmi_tlv_service {
 	WMI_TLV_SERVICE_DSM_ROAM_FILTER = 211,
 	WMI_TLV_SERVICE_PACKET_CAPTURE_SUPPORT = 212,
 	WMI_TLV_SERVICE_PER_PEER_HTT_STATS_RESET = 213,
+	WMI_TLV_SERVICE_EXT2_MSG = 220,
 
 	WMI_MAX_EXT_SERVICE
-
 };
 
 enum {
@@ -2087,6 +2094,14 @@ enum wmi_beacon_gen_mode {
 	WMI_BEACON_BURST_MODE = 1
 };
 
+enum wmi_direct_buffer_module {
+	WMI_DIRECT_BUF_SPECTRAL = 0,
+	WMI_DIRECT_BUF_CFR = 1,
+
+	/* keep it last */
+	WMI_DIRECT_BUF_MAX
+};
+
 struct wmi_host_pdev_band_to_mac {
 	u32 pdev_id;
 	u32 start_freq;
@@ -2393,6 +2408,15 @@ struct wmi_mac_addr {
 	} __packed;
 } __packed;
 
+struct wmi_dma_ring_capabilities {
+	u32 tlv_header;
+	u32 pdev_id;
+	u32 module_id;
+	u32 min_elem;
+	u32 min_buf_sz;
+	u32 min_buf_align;
+} __packed;
+
 struct wmi_ready_event_min {
 	struct wmi_abi_version fw_abi_vers;
 	struct wmi_mac_addr mac_addr;
@@ -4772,6 +4796,59 @@ struct ath11k_wmi_pdev_lro_config_cmd {
 	u32 pdev_id;
 } __packed;
 
+struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd {
+	u32 tlv_header;
+	u32 pdev_id;
+	u32 module_id;		/* see enum wmi_direct_buffer_module */
+	u32 base_paddr_lo;
+	u32 base_paddr_hi;
+	u32 head_idx_paddr_lo;
+	u32 head_idx_paddr_hi;
+	u32 tail_idx_paddr_lo;
+	u32 tail_idx_paddr_hi;
+	u32 num_elems;		/* Number of elems in the ring */
+	u32 buf_size;		/* size of allocated buffer in bytes */
+
+	/* Number of wmi_dma_buf_release_entry packed together */
+	u32 num_resp_per_event;
+
+	/* Target should timeout and send whatever resp
+	 * it has if this time expires, units in milliseconds
+	 */
+	u32 event_timeout_ms;
+} __packed;
+
+struct ath11k_wmi_dma_buf_release_fixed_param {
+	u32 pdev_id;
+	u32 module_id;
+	u32 num_buf_release_entry;
+	u32 num_meta_data_entry;
+} __packed;
+
+struct wmi_dma_buf_release_entry {
+	u32 tlv_header;
+	u32 paddr_lo;
+
+	/* Bits 11:0:   address of data
+	 * Bits 31:12:  host context data
+	 */
+	u32 paddr_hi;
+} __packed;
+
+#define WMI_SPECTRAL_META_INFO1_FREQ1		GENMASK(15, 0)
+#define WMI_SPECTRAL_META_INFO1_FREQ2		GENMASK(31, 16)
+
+#define WMI_SPECTRAL_META_INFO2_CHN_WIDTH	GENMASK(7, 0)
+
+struct wmi_dma_buf_release_meta_data {
+	u32 tlv_header;
+	s32 noise_floor[WMI_MAX_CHAINS];
+	u32 reset_delay;
+	u32 freq1;
+	u32 freq2;
+	u32 ch_width;
+} __packed;
+
 struct target_resource_config {
 	u32 num_vdevs;
 	u32 num_peers;
@@ -4979,4 +5056,6 @@ int ath11k_wmi_send_obss_color_collision_cfg_cmd(struct ath11k *ar, u32 vdev_id,
 int ath11k_wmi_send_bss_color_change_enable_cmd(struct ath11k *ar, u32 vdev_id,
 						bool enable);
 int ath11k_wmi_pdev_lro_cfg(struct ath11k *ar, int pdev_id);
+int ath11k_wmi_pdev_dma_ring_cfg(struct ath11k *ar,
+				 struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd *param);
 #endif
-- 
cgit 


From 9d11b7bff9508101d05f06e461ab81b5f0dc90ae Mon Sep 17 00:00:00 2001
From: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Date: Tue, 9 Jun 2020 13:03:34 +0530
Subject: ath11k: add support for spectral scan

spectral scan control interface is exposed through debugfs eentry.
Relayfs is used to collect the spectral data. These interfaces are
similar to ath10k spectral.

spectral debugfs interfaces are below,

echo background > /sys/kernel/debug/ieee80211/phy0/ath11k/spectral_scan_ctl
echo trigger > /sys/kernel/debug/ieee80211/phy0/ath11k/spectral_scan_ctl
iw dev wlan0 scan
echo disable > /sys/kernel/debug/ieee80211/phy0/ath11k/spectral_scan_ctl
cat /sys/kernel/debug/ieee80211/phy0/ath11k/spectral_scan0 > fft_samples.dump

Tested-on: IPQ8074 WLAN.HK.2.1.0.1-01228-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <periyasa@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591688014-26441-2-git-send-email-periyasa@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/Kconfig    |    9 +
 drivers/net/wireless/ath/ath11k/Makefile   |    1 +
 drivers/net/wireless/ath/ath11k/core.c     |   10 +
 drivers/net/wireless/ath/ath11k/core.h     |    5 +
 drivers/net/wireless/ath/ath11k/dbring.c   |    3 +
 drivers/net/wireless/ath/ath11k/mac.c      |    3 +
 drivers/net/wireless/ath/ath11k/spectral.c | 1023 ++++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/spectral.h |   82 +++
 drivers/net/wireless/ath/ath11k/wmi.c      |  198 ++++++
 drivers/net/wireless/ath/ath11k/wmi.h      |   63 ++
 drivers/net/wireless/ath/spectral_common.h |   17 +
 11 files changed, 1414 insertions(+)
 create mode 100644 drivers/net/wireless/ath/ath11k/spectral.c
 create mode 100644 drivers/net/wireless/ath/ath11k/spectral.h

diff --git a/drivers/net/wireless/ath/ath11k/Kconfig b/drivers/net/wireless/ath/ath11k/Kconfig
index 738f99090d83..093a755a0c46 100644
--- a/drivers/net/wireless/ath/ath11k/Kconfig
+++ b/drivers/net/wireless/ath/ath11k/Kconfig
@@ -34,3 +34,12 @@ config ATH11K_TRACING
 	depends on ATH11K && EVENT_TRACING
 	---help---
 	  Select this to use ath11k tracing infrastructure.
+
+config ATH11K_SPECTRAL
+	bool "QCA ath11k spectral scan support"
+	depends on ATH11K_DEBUGFS
+	depends on RELAY
+	help
+	  Enable ath11k spectral scan support
+
+	  Say Y to enable access to the FFT/spectral data via debugfs.
diff --git a/drivers/net/wireless/ath/ath11k/Makefile b/drivers/net/wireless/ath/ath11k/Makefile
index d17a3b418178..104186373c9e 100644
--- a/drivers/net/wireless/ath/ath11k/Makefile
+++ b/drivers/net/wireless/ath/ath11k/Makefile
@@ -22,6 +22,7 @@ ath11k-$(CONFIG_ATH11K_DEBUGFS) += debug_htt_stats.o debugfs_sta.o
 ath11k-$(CONFIG_NL80211_TESTMODE) += testmode.o
 ath11k-$(CONFIG_ATH11K_TRACING) += trace.o
 ath11k-$(CONFIG_THERMAL) += thermal.o
+ath11k-$(CONFIG_ATH11K_SPECTRAL) += spectral.o
 
 # for tracing framework to find trace.h
 CFLAGS_trace.o := -I$(src)
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index 02501cc154fe..905cd8beaf28 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c
@@ -400,8 +400,16 @@ static int ath11k_core_pdev_create(struct ath11k_base *ab)
 		goto err_dp_pdev_free;
 	}
 
+	ret = ath11k_spectral_init(ab);
+	if (ret) {
+		ath11k_err(ab, "failed to init spectral %d\n", ret);
+		goto err_thermal_unregister;
+	}
+
 	return 0;
 
+err_thermal_unregister:
+	ath11k_thermal_unregister(ab);
 err_dp_pdev_free:
 	ath11k_dp_pdev_free(ab);
 err_mac_unregister:
@@ -414,6 +422,7 @@ err_pdev_debug:
 
 static void ath11k_core_pdev_destroy(struct ath11k_base *ab)
 {
+	ath11k_spectral_deinit(ab);
 	ath11k_thermal_unregister(ab);
 	ath11k_mac_unregister(ab);
 	ath11k_hif_irq_disable(ab);
@@ -582,6 +591,7 @@ static int ath11k_core_reconfigure_on_crash(struct ath11k_base *ab)
 	ath11k_thermal_unregister(ab);
 	ath11k_hif_irq_disable(ab);
 	ath11k_dp_pdev_free(ab);
+	ath11k_spectral_deinit(ab);
 	ath11k_hif_stop(ab);
 	ath11k_wmi_detach(ab);
 	ath11k_dp_pdev_reo_cleanup(ab);
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index a715fe61c01b..7e9e9762b1ca 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -22,6 +22,7 @@
 #include "reg.h"
 #include "thermal.h"
 #include "dbring.h"
+#include "spectral.h"
 
 #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
 
@@ -216,6 +217,7 @@ struct ath11k_vif {
 
 	bool is_started;
 	bool is_up;
+	bool spectral_enabled;
 	u32 aid;
 	u8 bssid[ETH_ALEN];
 	struct cfg80211_bitrate_mask bitrate_mask;
@@ -541,6 +543,9 @@ struct ath11k {
 	u32 cached_ppdu_id;
 #ifdef CONFIG_ATH11K_DEBUGFS
 	struct ath11k_debug debug;
+#endif
+#ifdef CONFIG_ATH11K_SPECTRAL
+	struct ath11k_spectral spectral;
 #endif
 	bool dfs_block_radar_events;
 	struct ath11k_thermal thermal;
diff --git a/drivers/net/wireless/ath/ath11k/dbring.c b/drivers/net/wireless/ath/ath11k/dbring.c
index b96258489456..cf20db370123 100644
--- a/drivers/net/wireless/ath/ath11k/dbring.c
+++ b/drivers/net/wireless/ath/ath11k/dbring.c
@@ -267,6 +267,9 @@ int ath11k_dbring_buffer_release_event(struct ath11k_base *ab,
 	}
 
 	switch (ev->fixed.module_id) {
+	case WMI_DIRECT_BUF_SPECTRAL:
+		ring = ath11k_spectral_get_dbring(ar);
+		break;
 	default:
 		ring = NULL;
 		ath11k_warn(ab, "Recv dma buffer release ev on unsupp module %d\n",
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index b3ae1a0bceb3..5ba8f0986079 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2208,6 +2208,9 @@ static int ath11k_start_scan(struct ath11k *ar,
 
 	lockdep_assert_held(&ar->conf_mutex);
 
+	if (ath11k_spectral_get_mode(ar) == ATH11K_SPECTRAL_BACKGROUND)
+		ath11k_spectral_reset_buffer(ar);
+
 	ret = ath11k_wmi_send_scan_start_cmd(ar, arg);
 	if (ret)
 		return ret;
diff --git a/drivers/net/wireless/ath/ath11k/spectral.c b/drivers/net/wireless/ath/ath11k/spectral.c
new file mode 100644
index 000000000000..1c5d65bb411f
--- /dev/null
+++ b/drivers/net/wireless/ath/ath11k/spectral.c
@@ -0,0 +1,1023 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/relay.h>
+#include "core.h"
+#include "debug.h"
+
+#define ATH11K_SPECTRAL_NUM_RESP_PER_EVENT	2
+#define ATH11K_SPECTRAL_EVENT_TIMEOUT_MS	1
+
+#define ATH11K_SPECTRAL_DWORD_SIZE		4
+/* HW bug, expected BIN size is 2 bytes but HW report as 4 bytes */
+#define ATH11K_SPECTRAL_BIN_SIZE		4
+#define ATH11K_SPECTRAL_ATH11K_MIN_BINS		64
+#define ATH11K_SPECTRAL_ATH11K_MIN_IB_BINS	32
+#define ATH11K_SPECTRAL_ATH11K_MAX_IB_BINS	256
+
+#define ATH11K_SPECTRAL_SAMPLE_FFT_BIN_MASK	0xFF
+
+#define ATH11K_SPECTRAL_SCAN_COUNT_MAX		4095
+
+/* Max channel computed by sum of 2g and 5g band channels */
+#define ATH11K_SPECTRAL_TOTAL_CHANNEL		41
+#define ATH11K_SPECTRAL_SAMPLES_PER_CHANNEL	70
+#define ATH11K_SPECTRAL_PER_SAMPLE_SIZE		(sizeof(struct fft_sample_ath11k) + \
+						 ATH11K_SPECTRAL_ATH11K_MAX_IB_BINS)
+#define ATH11K_SPECTRAL_TOTAL_SAMPLE		(ATH11K_SPECTRAL_TOTAL_CHANNEL * \
+						 ATH11K_SPECTRAL_SAMPLES_PER_CHANNEL)
+#define ATH11K_SPECTRAL_SUB_BUFF_SIZE		ATH11K_SPECTRAL_PER_SAMPLE_SIZE
+#define ATH11K_SPECTRAL_NUM_SUB_BUF		ATH11K_SPECTRAL_TOTAL_SAMPLE
+
+#define ATH11K_SPECTRAL_20MHZ			20
+#define ATH11K_SPECTRAL_40MHZ			40
+#define ATH11K_SPECTRAL_80MHZ			80
+
+#define ATH11K_SPECTRAL_SIGNATURE		0xFA
+
+#define ATH11K_SPECTRAL_TAG_RADAR_SUMMARY	0x0
+#define ATH11K_SPECTRAL_TAG_RADAR_FFT		0x1
+#define ATH11K_SPECTRAL_TAG_SCAN_SUMMARY	0x2
+#define ATH11K_SPECTRAL_TAG_SCAN_SEARCH		0x3
+
+#define SPECTRAL_TLV_HDR_LEN				GENMASK(15, 0)
+#define SPECTRAL_TLV_HDR_TAG				GENMASK(23, 16)
+#define SPECTRAL_TLV_HDR_SIGN				GENMASK(31, 24)
+
+#define SPECTRAL_SUMMARY_INFO0_AGC_TOTAL_GAIN		GENMASK(7, 0)
+#define SPECTRAL_SUMMARY_INFO0_OB_FLAG			BIT(8)
+#define SPECTRAL_SUMMARY_INFO0_GRP_IDX			GENMASK(16, 9)
+#define SPECTRAL_SUMMARY_INFO0_RECENT_RFSAT		BIT(17)
+#define SPECTRAL_SUMMARY_INFO0_INBAND_PWR_DB		GENMASK(27, 18)
+#define SPECTRAL_SUMMARY_INFO0_FALSE_SCAN		BIT(28)
+#define SPECTRAL_SUMMARY_INFO0_DETECTOR_ID		GENMASK(30, 29)
+#define SPECTRAL_SUMMARY_INFO0_PRI80			BIT(31)
+
+#define SPECTRAL_SUMMARY_INFO2_PEAK_SIGNED_IDX		GENMASK(11, 0)
+#define SPECTRAL_SUMMARY_INFO2_PEAK_MAGNITUDE		GENMASK(21, 12)
+#define SPECTRAL_SUMMARY_INFO2_NARROWBAND_MASK		GENMASK(29, 22)
+#define SPECTRAL_SUMMARY_INFO2_GAIN_CHANGE		BIT(30)
+
+struct spectral_tlv {
+	__le32 timestamp;
+	__le32 header;
+} __packed;
+
+struct spectral_summary_fft_report {
+	__le32 timestamp;
+	__le32 tlv_header;
+	__le32 info0;
+	__le32 reserve0;
+	__le32 info2;
+	__le32 reserve1;
+} __packed;
+
+struct ath11k_spectral_summary_report {
+	struct wmi_dma_buf_release_meta_data meta;
+	u32 timestamp;
+	u8 agc_total_gain;
+	u8 grp_idx;
+	u16 inb_pwr_db;
+	s16 peak_idx;
+	u16 peak_mag;
+	u8 detector_id;
+	bool out_of_band_flag;
+	bool rf_saturation;
+	bool primary80;
+	bool gain_change;
+	bool false_scan;
+};
+
+#define SPECTRAL_FFT_REPORT_INFO0_DETECTOR_ID		GENMASK(1, 0)
+#define SPECTRAL_FFT_REPORT_INFO0_FFT_NUM		GENMASK(4, 2)
+#define SPECTRAL_FFT_REPORT_INFO0_RADAR_CHECK		GENMASK(16, 5)
+#define SPECTRAL_FFT_REPORT_INFO0_PEAK_SIGNED_IDX	GENMASK(27, 17)
+#define SPECTRAL_FFT_REPORT_INFO0_CHAIN_IDX		GENMASK(30, 28)
+
+#define SPECTRAL_FFT_REPORT_INFO1_BASE_PWR_DB		GENMASK(8, 0)
+#define SPECTRAL_FFT_REPORT_INFO1_TOTAL_GAIN_DB		GENMASK(16, 9)
+
+#define SPECTRAL_FFT_REPORT_INFO2_NUM_STRONG_BINS	GENMASK(7, 0)
+#define SPECTRAL_FFT_REPORT_INFO2_PEAK_MAGNITUDE	GENMASK(17, 8)
+#define SPECTRAL_FFT_REPORT_INFO2_AVG_PWR_DB		GENMASK(24, 18)
+#define SPECTRAL_FFT_REPORT_INFO2_REL_PWR_DB		GENMASK(31, 25)
+
+struct spectral_search_fft_report {
+	__le32 timestamp;
+	__le32 tlv_header;
+	__le32 info0;
+	__le32 info1;
+	__le32 info2;
+	__le32 reserve0;
+	u8 bins[0];
+} __packed;
+
+struct ath11k_spectral_search_report {
+	u32 timestamp;
+	u8 detector_id;
+	u8 fft_count;
+	u16 radar_check;
+	s16 peak_idx;
+	u8 chain_idx;
+	u16 base_pwr_db;
+	u8 total_gain_db;
+	u8 strong_bin_count;
+	u16 peak_mag;
+	u8 avg_pwr_db;
+	u8 rel_pwr_db;
+};
+
+static struct dentry *create_buf_file_handler(const char *filename,
+					      struct dentry *parent,
+					      umode_t mode,
+					      struct rchan_buf *buf,
+					      int *is_global)
+{
+	struct dentry *buf_file;
+
+	buf_file = debugfs_create_file(filename, mode, parent, buf,
+				       &relay_file_operations);
+	*is_global = 1;
+	return buf_file;
+}
+
+static int remove_buf_file_handler(struct dentry *dentry)
+{
+	debugfs_remove(dentry);
+
+	return 0;
+}
+
+static struct rchan_callbacks rfs_scan_cb = {
+	.create_buf_file = create_buf_file_handler,
+	.remove_buf_file = remove_buf_file_handler,
+};
+
+static struct ath11k_vif *ath11k_spectral_get_vdev(struct ath11k *ar)
+{
+	struct ath11k_vif *arvif;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (list_empty(&ar->arvifs))
+		return NULL;
+
+	/* if there already is a vif doing spectral, return that. */
+	list_for_each_entry(arvif, &ar->arvifs, list)
+		if (arvif->spectral_enabled)
+			return arvif;
+
+	/* otherwise, return the first vif. */
+	return list_first_entry(&ar->arvifs, typeof(*arvif), list);
+}
+
+static int ath11k_spectral_scan_trigger(struct ath11k *ar)
+{
+	struct ath11k_vif *arvif;
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	arvif = ath11k_spectral_get_vdev(ar);
+	if (!arvif)
+		return -ENODEV;
+
+	if (ar->spectral.mode == ATH11K_SPECTRAL_DISABLED)
+		return 0;
+
+	ret = ath11k_wmi_vdev_spectral_enable(ar, arvif->vdev_id,
+					      ATH11K_WMI_SPECTRAL_TRIGGER_CMD_CLEAR,
+					      ATH11K_WMI_SPECTRAL_ENABLE_CMD_ENABLE);
+	if (ret)
+		return ret;
+
+	ret = ath11k_wmi_vdev_spectral_enable(ar, arvif->vdev_id,
+					      ATH11K_WMI_SPECTRAL_TRIGGER_CMD_TRIGGER,
+					      ATH11K_WMI_SPECTRAL_ENABLE_CMD_ENABLE);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int ath11k_spectral_scan_config(struct ath11k *ar,
+				       enum ath11k_spectral_mode mode)
+{
+	struct ath11k_wmi_vdev_spectral_conf_param param = { 0 };
+	struct ath11k_vif *arvif;
+	int ret, count;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	arvif = ath11k_spectral_get_vdev(ar);
+	if (!arvif)
+		return -ENODEV;
+
+	arvif->spectral_enabled = (mode != ATH11K_SPECTRAL_DISABLED);
+	ar->spectral.mode = mode;
+
+	ret = ath11k_wmi_vdev_spectral_enable(ar, arvif->vdev_id,
+					      ATH11K_WMI_SPECTRAL_TRIGGER_CMD_CLEAR,
+					      ATH11K_WMI_SPECTRAL_ENABLE_CMD_DISABLE);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to enable spectral scan: %d\n", ret);
+		return ret;
+	}
+
+	if (mode == ATH11K_SPECTRAL_DISABLED)
+		return 0;
+
+	if (mode == ATH11K_SPECTRAL_BACKGROUND)
+		count = ATH11K_WMI_SPECTRAL_COUNT_DEFAULT;
+	else
+		count = max_t(u16, 1, ar->spectral.count);
+
+	param.vdev_id = arvif->vdev_id;
+	param.scan_count = count;
+	param.scan_fft_size = ar->spectral.fft_size;
+	param.scan_period = ATH11K_WMI_SPECTRAL_PERIOD_DEFAULT;
+	param.scan_priority = ATH11K_WMI_SPECTRAL_PRIORITY_DEFAULT;
+	param.scan_gc_ena = ATH11K_WMI_SPECTRAL_GC_ENA_DEFAULT;
+	param.scan_restart_ena = ATH11K_WMI_SPECTRAL_RESTART_ENA_DEFAULT;
+	param.scan_noise_floor_ref = ATH11K_WMI_SPECTRAL_NOISE_FLOOR_REF_DEFAULT;
+	param.scan_init_delay = ATH11K_WMI_SPECTRAL_INIT_DELAY_DEFAULT;
+	param.scan_nb_tone_thr = ATH11K_WMI_SPECTRAL_NB_TONE_THR_DEFAULT;
+	param.scan_str_bin_thr = ATH11K_WMI_SPECTRAL_STR_BIN_THR_DEFAULT;
+	param.scan_wb_rpt_mode = ATH11K_WMI_SPECTRAL_WB_RPT_MODE_DEFAULT;
+	param.scan_rssi_rpt_mode = ATH11K_WMI_SPECTRAL_RSSI_RPT_MODE_DEFAULT;
+	param.scan_rssi_thr = ATH11K_WMI_SPECTRAL_RSSI_THR_DEFAULT;
+	param.scan_pwr_format = ATH11K_WMI_SPECTRAL_PWR_FORMAT_DEFAULT;
+	param.scan_rpt_mode = ATH11K_WMI_SPECTRAL_RPT_MODE_DEFAULT;
+	param.scan_bin_scale = ATH11K_WMI_SPECTRAL_BIN_SCALE_DEFAULT;
+	param.scan_dbm_adj = ATH11K_WMI_SPECTRAL_DBM_ADJ_DEFAULT;
+	param.scan_chn_mask = ATH11K_WMI_SPECTRAL_CHN_MASK_DEFAULT;
+
+	ret = ath11k_wmi_vdev_spectral_conf(ar, &param);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to configure spectral scan: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static ssize_t ath11k_read_file_spec_scan_ctl(struct file *file,
+					      char __user *user_buf,
+					      size_t count, loff_t *ppos)
+{
+	struct ath11k *ar = file->private_data;
+	char *mode = "";
+	size_t len;
+	enum ath11k_spectral_mode spectral_mode;
+
+	mutex_lock(&ar->conf_mutex);
+	spectral_mode = ar->spectral.mode;
+	mutex_unlock(&ar->conf_mutex);
+
+	switch (spectral_mode) {
+	case ATH11K_SPECTRAL_DISABLED:
+		mode = "disable";
+		break;
+	case ATH11K_SPECTRAL_BACKGROUND:
+		mode = "background";
+		break;
+	case ATH11K_SPECTRAL_MANUAL:
+		mode = "manual";
+		break;
+	}
+
+	len = strlen(mode);
+	return simple_read_from_buffer(user_buf, count, ppos, mode, len);
+}
+
+static ssize_t ath11k_write_file_spec_scan_ctl(struct file *file,
+					       const char __user *user_buf,
+					       size_t count, loff_t *ppos)
+{
+	struct ath11k *ar = file->private_data;
+	char buf[32];
+	ssize_t len;
+	int ret;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+
+	buf[len] = '\0';
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (strncmp("trigger", buf, 7) == 0) {
+		if (ar->spectral.mode == ATH11K_SPECTRAL_MANUAL ||
+		    ar->spectral.mode == ATH11K_SPECTRAL_BACKGROUND) {
+			/* reset the configuration to adopt possibly changed
+			 * debugfs parameters
+			 */
+			ret = ath11k_spectral_scan_config(ar, ar->spectral.mode);
+			if (ret) {
+				ath11k_warn(ar->ab, "failed to reconfigure spectral scan: %d\n",
+					    ret);
+				goto unlock;
+			}
+
+			ret = ath11k_spectral_scan_trigger(ar);
+			if (ret) {
+				ath11k_warn(ar->ab, "failed to trigger spectral scan: %d\n",
+					    ret);
+			}
+		} else {
+			ret = -EINVAL;
+		}
+	} else if (strncmp("background", buf, 10) == 0) {
+		ret = ath11k_spectral_scan_config(ar, ATH11K_SPECTRAL_BACKGROUND);
+	} else if (strncmp("manual", buf, 6) == 0) {
+		ret = ath11k_spectral_scan_config(ar, ATH11K_SPECTRAL_MANUAL);
+	} else if (strncmp("disable", buf, 7) == 0) {
+		ret = ath11k_spectral_scan_config(ar, ATH11K_SPECTRAL_DISABLED);
+	} else {
+		ret = -EINVAL;
+	}
+
+unlock:
+	mutex_unlock(&ar->conf_mutex);
+
+	if (ret)
+		return ret;
+
+	return count;
+}
+
+static const struct file_operations fops_scan_ctl = {
+	.read = ath11k_read_file_spec_scan_ctl,
+	.write = ath11k_write_file_spec_scan_ctl,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+static ssize_t ath11k_read_file_spectral_count(struct file *file,
+					       char __user *user_buf,
+					       size_t count, loff_t *ppos)
+{
+	struct ath11k *ar = file->private_data;
+	char buf[32];
+	size_t len;
+	u16 spectral_count;
+
+	mutex_lock(&ar->conf_mutex);
+	spectral_count = ar->spectral.count;
+	mutex_unlock(&ar->conf_mutex);
+
+	len = sprintf(buf, "%d\n", spectral_count);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t ath11k_write_file_spectral_count(struct file *file,
+						const char __user *user_buf,
+						size_t count, loff_t *ppos)
+{
+	struct ath11k *ar = file->private_data;
+	unsigned long val;
+	char buf[32];
+	ssize_t len;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+
+	buf[len] = '\0';
+	if (kstrtoul(buf, 0, &val))
+		return -EINVAL;
+
+	if (val > ATH11K_SPECTRAL_SCAN_COUNT_MAX)
+		return -EINVAL;
+
+	mutex_lock(&ar->conf_mutex);
+	ar->spectral.count = val;
+	mutex_unlock(&ar->conf_mutex);
+
+	return count;
+}
+
+static const struct file_operations fops_scan_count = {
+	.read = ath11k_read_file_spectral_count,
+	.write = ath11k_write_file_spectral_count,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+static ssize_t ath11k_read_file_spectral_bins(struct file *file,
+					      char __user *user_buf,
+					      size_t count, loff_t *ppos)
+{
+	struct ath11k *ar = file->private_data;
+	char buf[32];
+	unsigned int bins, fft_size;
+	size_t len;
+
+	mutex_lock(&ar->conf_mutex);
+
+	fft_size = ar->spectral.fft_size;
+	bins = 1 << fft_size;
+
+	mutex_unlock(&ar->conf_mutex);
+
+	len = sprintf(buf, "%d\n", bins);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t ath11k_write_file_spectral_bins(struct file *file,
+					       const char __user *user_buf,
+					       size_t count, loff_t *ppos)
+{
+	struct ath11k *ar = file->private_data;
+	unsigned long val;
+	char buf[32];
+	ssize_t len;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+
+	buf[len] = '\0';
+	if (kstrtoul(buf, 0, &val))
+		return -EINVAL;
+
+	if (val < ATH11K_SPECTRAL_ATH11K_MIN_BINS ||
+	    val > SPECTRAL_ATH11K_MAX_NUM_BINS)
+		return -EINVAL;
+
+	if (!is_power_of_2(val))
+		return -EINVAL;
+
+	mutex_lock(&ar->conf_mutex);
+	ar->spectral.fft_size = ilog2(val);
+	mutex_unlock(&ar->conf_mutex);
+
+	return count;
+}
+
+static const struct file_operations fops_scan_bins = {
+	.read = ath11k_read_file_spectral_bins,
+	.write = ath11k_write_file_spectral_bins,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+static int ath11k_spectral_pull_summary(struct ath11k *ar,
+					struct wmi_dma_buf_release_meta_data *meta,
+					struct spectral_summary_fft_report *summary,
+					struct ath11k_spectral_summary_report *report)
+{
+	report->timestamp = __le32_to_cpu(summary->timestamp);
+	report->agc_total_gain = FIELD_GET(SPECTRAL_SUMMARY_INFO0_AGC_TOTAL_GAIN,
+					   __le32_to_cpu(summary->info0));
+	report->out_of_band_flag = FIELD_GET(SPECTRAL_SUMMARY_INFO0_OB_FLAG,
+					     __le32_to_cpu(summary->info0));
+	report->grp_idx = FIELD_GET(SPECTRAL_SUMMARY_INFO0_GRP_IDX,
+				    __le32_to_cpu(summary->info0));
+	report->rf_saturation = FIELD_GET(SPECTRAL_SUMMARY_INFO0_RECENT_RFSAT,
+					  __le32_to_cpu(summary->info0));
+	report->inb_pwr_db = FIELD_GET(SPECTRAL_SUMMARY_INFO0_INBAND_PWR_DB,
+				       __le32_to_cpu(summary->info0));
+	report->false_scan = FIELD_GET(SPECTRAL_SUMMARY_INFO0_FALSE_SCAN,
+				       __le32_to_cpu(summary->info0));
+	report->detector_id = FIELD_GET(SPECTRAL_SUMMARY_INFO0_DETECTOR_ID,
+					__le32_to_cpu(summary->info0));
+	report->primary80 = FIELD_GET(SPECTRAL_SUMMARY_INFO0_PRI80,
+				      __le32_to_cpu(summary->info0));
+	report->peak_idx = FIELD_GET(SPECTRAL_SUMMARY_INFO2_PEAK_SIGNED_IDX,
+				     __le32_to_cpu(summary->info2));
+	report->peak_mag = FIELD_GET(SPECTRAL_SUMMARY_INFO2_PEAK_MAGNITUDE,
+				     __le32_to_cpu(summary->info2));
+	report->gain_change = FIELD_GET(SPECTRAL_SUMMARY_INFO2_GAIN_CHANGE,
+					__le32_to_cpu(summary->info2));
+
+	memcpy(&report->meta, meta, sizeof(*meta));
+
+	return 0;
+}
+
+static int ath11k_spectral_pull_search(struct ath11k *ar,
+				       struct spectral_search_fft_report *search,
+				       struct ath11k_spectral_search_report *report)
+{
+	report->timestamp = __le32_to_cpu(search->timestamp);
+	report->detector_id = FIELD_GET(SPECTRAL_FFT_REPORT_INFO0_DETECTOR_ID,
+					__le32_to_cpu(search->info0));
+	report->fft_count = FIELD_GET(SPECTRAL_FFT_REPORT_INFO0_FFT_NUM,
+				      __le32_to_cpu(search->info0));
+	report->radar_check = FIELD_GET(SPECTRAL_FFT_REPORT_INFO0_RADAR_CHECK,
+					__le32_to_cpu(search->info0));
+	report->peak_idx = FIELD_GET(SPECTRAL_FFT_REPORT_INFO0_PEAK_SIGNED_IDX,
+				     __le32_to_cpu(search->info0));
+	report->chain_idx = FIELD_GET(SPECTRAL_FFT_REPORT_INFO0_CHAIN_IDX,
+				      __le32_to_cpu(search->info0));
+	report->base_pwr_db = FIELD_GET(SPECTRAL_FFT_REPORT_INFO1_BASE_PWR_DB,
+					__le32_to_cpu(search->info1));
+	report->total_gain_db = FIELD_GET(SPECTRAL_FFT_REPORT_INFO1_TOTAL_GAIN_DB,
+					  __le32_to_cpu(search->info1));
+	report->strong_bin_count = FIELD_GET(SPECTRAL_FFT_REPORT_INFO2_NUM_STRONG_BINS,
+					     __le32_to_cpu(search->info2));
+	report->peak_mag = FIELD_GET(SPECTRAL_FFT_REPORT_INFO2_PEAK_MAGNITUDE,
+				     __le32_to_cpu(search->info2));
+	report->avg_pwr_db = FIELD_GET(SPECTRAL_FFT_REPORT_INFO2_AVG_PWR_DB,
+				       __le32_to_cpu(search->info2));
+	report->rel_pwr_db = FIELD_GET(SPECTRAL_FFT_REPORT_INFO2_REL_PWR_DB,
+				       __le32_to_cpu(search->info2));
+
+	return 0;
+}
+
+static u8 ath11k_spectral_get_max_exp(s8 max_index, u8 max_magnitude,
+				      int bin_len, u8 *bins)
+{
+	int dc_pos;
+	u8 max_exp;
+
+	dc_pos = bin_len / 2;
+
+	/* peak index outside of bins */
+	if (dc_pos <= max_index || -dc_pos >= max_index)
+		return 0;
+
+	for (max_exp = 0; max_exp < 8; max_exp++) {
+		if (bins[dc_pos + max_index] == (max_magnitude >> max_exp))
+			break;
+	}
+
+	/* max_exp not found */
+	if (bins[dc_pos + max_index] != (max_magnitude >> max_exp))
+		return 0;
+
+	return max_exp;
+}
+
+static void ath11k_spectral_parse_16bit_fft(u8 *outbins, u8 *inbins, int num_bins)
+{
+	int i;
+	__le16 *data = (__le16 *)inbins;
+
+	i = 0;
+	while (i < num_bins) {
+		outbins[i] = (__le16_to_cpu(data[i])) &
+			     ATH11K_SPECTRAL_SAMPLE_FFT_BIN_MASK;
+		i++;
+	}
+}
+
+static
+int ath11k_spectral_process_fft(struct ath11k *ar,
+				struct ath11k_spectral_summary_report *summary,
+				void *data,
+				struct fft_sample_ath11k *fft_sample,
+				u32 data_len)
+{
+	struct ath11k_base *ab = ar->ab;
+	struct spectral_search_fft_report *fft_report = data;
+	struct ath11k_spectral_search_report search;
+	struct spectral_tlv *tlv;
+	int tlv_len, bin_len, num_bins;
+	u16 length, freq;
+	u8 chan_width_mhz;
+	int ret;
+
+	lockdep_assert_held(&ar->spectral.lock);
+
+	tlv = (struct spectral_tlv *)data;
+	tlv_len = FIELD_GET(SPECTRAL_TLV_HDR_LEN, __le32_to_cpu(tlv->header));
+	/* convert Dword into bytes */
+	tlv_len *= ATH11K_SPECTRAL_DWORD_SIZE;
+	bin_len = tlv_len - (sizeof(*fft_report) - sizeof(*tlv));
+
+	if (data_len < (bin_len + sizeof(*fft_report))) {
+		ath11k_warn(ab, "mismatch in expected bin len %d and data len %d\n",
+			    bin_len, data_len);
+		return -EINVAL;
+	}
+
+	num_bins = bin_len / ATH11K_SPECTRAL_BIN_SIZE;
+	/* Only In-band bins are useful to user for visualize */
+	num_bins >>= 1;
+
+	if (num_bins < ATH11K_SPECTRAL_ATH11K_MIN_IB_BINS ||
+	    num_bins > ATH11K_SPECTRAL_ATH11K_MAX_IB_BINS ||
+	    !is_power_of_2(num_bins)) {
+		ath11k_warn(ab, "Invalid num of bins %d\n", num_bins);
+		return -EINVAL;
+	}
+
+	ret = ath11k_spectral_pull_search(ar, data, &search);
+	if (ret) {
+		ath11k_warn(ab, "failed to pull search report %d\n", ret);
+		return ret;
+	}
+
+	chan_width_mhz = summary->meta.ch_width;
+
+	switch (chan_width_mhz) {
+	case ATH11K_SPECTRAL_20MHZ:
+	case ATH11K_SPECTRAL_40MHZ:
+	case ATH11K_SPECTRAL_80MHZ:
+		fft_sample->chan_width_mhz = chan_width_mhz;
+		break;
+	default:
+		ath11k_warn(ab, "invalid channel width %d\n", chan_width_mhz);
+		return -EINVAL;
+	}
+
+	length = sizeof(*fft_sample) - sizeof(struct fft_sample_tlv) + num_bins;
+	fft_sample->tlv.type = ATH_FFT_SAMPLE_ATH11K;
+	fft_sample->tlv.length = __cpu_to_be16(length);
+
+	fft_sample->tsf = __cpu_to_be32(search.timestamp);
+	fft_sample->max_magnitude = __cpu_to_be16(search.peak_mag);
+	fft_sample->max_index = FIELD_GET(SPECTRAL_FFT_REPORT_INFO0_PEAK_SIGNED_IDX,
+					  __le32_to_cpu(fft_report->info0));
+
+	summary->inb_pwr_db >>= 1;
+	fft_sample->rssi = __cpu_to_be16(summary->inb_pwr_db);
+	fft_sample->noise = __cpu_to_be32(summary->meta.noise_floor[search.chain_idx]);
+
+	freq = summary->meta.freq1;
+	fft_sample->freq1 = __cpu_to_be16(freq);
+
+	freq = summary->meta.freq2;
+	fft_sample->freq2 = __cpu_to_be16(freq);
+
+	ath11k_spectral_parse_16bit_fft(fft_sample->data,
+					fft_report->bins,
+					num_bins);
+
+	fft_sample->max_exp = ath11k_spectral_get_max_exp(fft_sample->max_index,
+							  search.peak_mag,
+							  num_bins,
+							  fft_sample->data);
+
+	if (ar->spectral.rfs_scan)
+		relay_write(ar->spectral.rfs_scan, fft_sample,
+			    length + sizeof(struct fft_sample_tlv));
+
+	return 0;
+}
+
+static int ath11k_spectral_process_data(struct ath11k *ar,
+					struct ath11k_dbring_data *param)
+{
+	struct ath11k_base *ab = ar->ab;
+	struct spectral_tlv *tlv;
+	struct spectral_summary_fft_report *summary = NULL;
+	struct ath11k_spectral_summary_report summ_rpt;
+	struct fft_sample_ath11k *fft_sample = NULL;
+	u8 *data;
+	u32 data_len, i;
+	u8 sign, tag;
+	int tlv_len, sample_sz;
+	int ret;
+	bool quit = false;
+
+	spin_lock_bh(&ar->spectral.lock);
+
+	if (!ar->spectral.enabled) {
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	sample_sz = sizeof(*fft_sample) + ATH11K_SPECTRAL_ATH11K_MAX_IB_BINS;
+	fft_sample = kmalloc(sample_sz, GFP_ATOMIC);
+	if (!fft_sample) {
+		ret = -ENOBUFS;
+		goto unlock;
+	}
+
+	data = param->data;
+	data_len = param->data_sz;
+	i = 0;
+	while (!quit && (i < data_len)) {
+		if ((i + sizeof(*tlv)) > data_len) {
+			ath11k_warn(ab, "failed to parse spectral tlv hdr at bytes %d\n",
+				    i);
+			ret = -EINVAL;
+			goto err;
+		}
+
+		tlv = (struct spectral_tlv *)&data[i];
+		sign = FIELD_GET(SPECTRAL_TLV_HDR_SIGN,
+				 __le32_to_cpu(tlv->header));
+		if (sign != ATH11K_SPECTRAL_SIGNATURE) {
+			ath11k_warn(ab, "Invalid sign 0x%x at bytes %d\n",
+				    sign, i);
+			ret = -EINVAL;
+			goto err;
+		}
+
+		tlv_len = FIELD_GET(SPECTRAL_TLV_HDR_LEN,
+				    __le32_to_cpu(tlv->header));
+		/* convert Dword into bytes */
+		tlv_len *= ATH11K_SPECTRAL_DWORD_SIZE;
+		if ((i + sizeof(*tlv) + tlv_len) > data_len) {
+			ath11k_warn(ab, "failed to parse spectral tlv payload at bytes %d tlv_len:%d data_len:%d\n",
+				    i, tlv_len, data_len);
+			ret = -EINVAL;
+			goto err;
+		}
+
+		tag = FIELD_GET(SPECTRAL_TLV_HDR_TAG,
+				__le32_to_cpu(tlv->header));
+		switch (tag) {
+		case ATH11K_SPECTRAL_TAG_SCAN_SUMMARY:
+			/* HW bug in tlv length of summary report,
+			 * HW report 3 DWORD size but the data payload
+			 * is 4 DWORD size (16 bytes).
+			 * Need to remove this workaround once HW bug fixed
+			 */
+			tlv_len = sizeof(*summary) - sizeof(*tlv);
+
+			if (tlv_len < (sizeof(*summary) - sizeof(*tlv))) {
+				ath11k_warn(ab, "failed to parse spectral summary at bytes %d tlv_len:%d\n",
+					    i, tlv_len);
+				ret = -EINVAL;
+				goto err;
+			}
+
+			summary = (struct spectral_summary_fft_report *)tlv;
+			ath11k_spectral_pull_summary(ar, &param->meta,
+						     summary, &summ_rpt);
+			break;
+		case ATH11K_SPECTRAL_TAG_SCAN_SEARCH:
+			if (tlv_len < (sizeof(struct spectral_search_fft_report) -
+				       sizeof(*tlv))) {
+				ath11k_warn(ab, "failed to parse spectral search fft at bytes %d\n",
+					    i);
+				ret = -EINVAL;
+				goto err;
+			}
+
+			memset(fft_sample, 0, sample_sz);
+			ret = ath11k_spectral_process_fft(ar, &summ_rpt, tlv,
+							  fft_sample,
+							  data_len - i);
+			if (ret) {
+				ath11k_warn(ab, "failed to process spectral fft at bytes %d\n",
+					    i);
+				goto err;
+			}
+			quit = true;
+			break;
+		}
+
+		i += sizeof(*tlv) + tlv_len;
+	}
+
+err:
+	kfree(fft_sample);
+unlock:
+	spin_unlock_bh(&ar->spectral.lock);
+	return ret;
+}
+
+static int ath11k_spectral_ring_alloc(struct ath11k *ar,
+				      struct ath11k_dbring_cap *db_cap)
+{
+	struct ath11k_spectral *sp = &ar->spectral;
+	int ret;
+
+	ret = ath11k_dbring_srng_setup(ar, &sp->rx_ring,
+				       0, db_cap->min_elem);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to setup db ring\n");
+		return ret;
+	}
+
+	ath11k_dbring_set_cfg(ar, &sp->rx_ring,
+			      ATH11K_SPECTRAL_NUM_RESP_PER_EVENT,
+			      ATH11K_SPECTRAL_EVENT_TIMEOUT_MS,
+			      ath11k_spectral_process_data);
+
+	ret = ath11k_dbring_buf_setup(ar, &sp->rx_ring, db_cap);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to setup db ring buffer\n");
+		goto srng_cleanup;
+	}
+
+	ret = ath11k_dbring_wmi_cfg_setup(ar, &sp->rx_ring,
+					  WMI_DIRECT_BUF_SPECTRAL);
+	if (ret) {
+		ath11k_warn(ar->ab, "failed to setup db ring cfg\n");
+		goto buffer_cleanup;
+	}
+
+	return 0;
+
+buffer_cleanup:
+	ath11k_dbring_buf_cleanup(ar, &sp->rx_ring);
+srng_cleanup:
+	ath11k_dbring_srng_cleanup(ar, &sp->rx_ring);
+	return ret;
+}
+
+static inline void ath11k_spectral_ring_free(struct ath11k *ar)
+{
+	struct ath11k_spectral *sp = &ar->spectral;
+
+	if (!sp->enabled)
+		return;
+
+	ath11k_dbring_srng_cleanup(ar, &sp->rx_ring);
+	ath11k_dbring_buf_cleanup(ar, &sp->rx_ring);
+}
+
+static inline void ath11k_spectral_debug_unregister(struct ath11k *ar)
+{
+	debugfs_remove(ar->spectral.scan_bins);
+	ar->spectral.scan_bins = NULL;
+
+	debugfs_remove(ar->spectral.scan_count);
+	ar->spectral.scan_count = NULL;
+
+	debugfs_remove(ar->spectral.scan_ctl);
+	ar->spectral.scan_ctl = NULL;
+
+	if (ar->spectral.rfs_scan) {
+		relay_close(ar->spectral.rfs_scan);
+		ar->spectral.rfs_scan = NULL;
+	}
+}
+
+int ath11k_spectral_vif_stop(struct ath11k_vif *arvif)
+{
+	if (!arvif->spectral_enabled)
+		return 0;
+
+	return ath11k_spectral_scan_config(arvif->ar, ATH11K_SPECTRAL_DISABLED);
+}
+
+void ath11k_spectral_reset_buffer(struct ath11k *ar)
+{
+	if (!ar->spectral.enabled)
+		return;
+
+	if (ar->spectral.rfs_scan)
+		relay_reset(ar->spectral.rfs_scan);
+}
+
+void ath11k_spectral_deinit(struct ath11k_base *ab)
+{
+	struct ath11k *ar;
+	struct ath11k_spectral *sp;
+	int i;
+
+	for (i = 0; i <  ab->num_radios; i++) {
+		ar = ab->pdevs[i].ar;
+		sp = &ar->spectral;
+
+		if (!sp->enabled)
+			continue;
+
+		ath11k_spectral_debug_unregister(ar);
+		ath11k_spectral_ring_free(ar);
+
+		spin_lock_bh(&sp->lock);
+
+		sp->mode = ATH11K_SPECTRAL_DISABLED;
+		sp->enabled = false;
+
+		spin_unlock_bh(&sp->lock);
+	}
+}
+
+static inline int ath11k_spectral_debug_register(struct ath11k *ar)
+{
+	int ret;
+
+	ar->spectral.rfs_scan = relay_open("spectral_scan",
+					   ar->debug.debugfs_pdev,
+					   ATH11K_SPECTRAL_SUB_BUFF_SIZE,
+					   ATH11K_SPECTRAL_NUM_SUB_BUF,
+					   &rfs_scan_cb, NULL);
+	if (!ar->spectral.rfs_scan) {
+		ath11k_warn(ar->ab, "failed to open relay in pdev %d\n",
+			    ar->pdev_idx);
+		return -EINVAL;
+	}
+
+	ar->spectral.scan_ctl = debugfs_create_file("spectral_scan_ctl",
+						    0600,
+						    ar->debug.debugfs_pdev, ar,
+						    &fops_scan_ctl);
+	if (!ar->spectral.scan_ctl) {
+		ath11k_warn(ar->ab, "failed to open debugfs in pdev %d\n",
+			    ar->pdev_idx);
+		ret = -EINVAL;
+		goto debug_unregister;
+	}
+
+	ar->spectral.scan_count = debugfs_create_file("spectral_count",
+						      0600,
+						      ar->debug.debugfs_pdev, ar,
+						      &fops_scan_count);
+	if (!ar->spectral.scan_count) {
+		ath11k_warn(ar->ab, "failed to open debugfs in pdev %d\n",
+			    ar->pdev_idx);
+		ret = -EINVAL;
+		goto debug_unregister;
+	}
+
+	ar->spectral.scan_bins = debugfs_create_file("spectral_bins",
+						     0600,
+						     ar->debug.debugfs_pdev, ar,
+						     &fops_scan_bins);
+	if (!ar->spectral.scan_bins) {
+		ath11k_warn(ar->ab, "failed to open debugfs in pdev %d\n",
+			    ar->pdev_idx);
+		ret = -EINVAL;
+		goto debug_unregister;
+	}
+
+	return 0;
+
+debug_unregister:
+	ath11k_spectral_debug_unregister(ar);
+	return ret;
+}
+
+int ath11k_spectral_init(struct ath11k_base *ab)
+{
+	struct ath11k *ar;
+	struct ath11k_spectral *sp;
+	struct ath11k_dbring_cap db_cap;
+	int ret;
+	int i;
+
+	if (!test_bit(WMI_TLV_SERVICE_FREQINFO_IN_METADATA,
+		      ab->wmi_ab.svc_map)) {
+		ath11k_info(ab, "spectral not supported\n");
+		return 0;
+	}
+
+	for (i = 0; i < ab->num_radios; i++) {
+		ar = ab->pdevs[i].ar;
+		sp = &ar->spectral;
+
+		ret = ath11k_dbring_get_cap(ar->ab, ar->pdev_idx,
+					    WMI_DIRECT_BUF_SPECTRAL,
+					    &db_cap);
+		if (ret) {
+			ath11k_info(ab, "spectral not enabled for pdev %d\n", i);
+			continue;
+		}
+
+		idr_init(&sp->rx_ring.bufs_idr);
+		spin_lock_init(&sp->rx_ring.idr_lock);
+		spin_lock_init(&sp->lock);
+
+		ret = ath11k_spectral_ring_alloc(ar, &db_cap);
+		if (ret) {
+			ath11k_warn(ab, "failed to init spectral ring for pdev %d\n",
+				    i);
+			goto deinit;
+		}
+
+		spin_lock_bh(&sp->lock);
+
+		sp->mode = ATH11K_SPECTRAL_DISABLED;
+		sp->count = ATH11K_WMI_SPECTRAL_COUNT_DEFAULT;
+		sp->fft_size = ATH11K_WMI_SPECTRAL_FFT_SIZE_DEFAULT;
+		sp->enabled = true;
+
+		spin_unlock_bh(&sp->lock);
+
+		ret = ath11k_spectral_debug_register(ar);
+		if (ret) {
+			ath11k_warn(ab, "failed to register spectral for pdev %d\n",
+				    i);
+			goto deinit;
+		}
+	}
+
+	return 0;
+
+deinit:
+	ath11k_spectral_deinit(ab);
+	return ret;
+}
+
+enum ath11k_spectral_mode ath11k_spectral_get_mode(struct ath11k *ar)
+{
+	if (ar->spectral.enabled)
+		return ar->spectral.mode;
+	else
+		return ATH11K_SPECTRAL_DISABLED;
+}
+
+struct ath11k_dbring *ath11k_spectral_get_dbring(struct ath11k *ar)
+{
+	if (ar->spectral.enabled)
+		return &ar->spectral.rx_ring;
+	else
+		return NULL;
+}
diff --git a/drivers/net/wireless/ath/ath11k/spectral.h b/drivers/net/wireless/ath/ath11k/spectral.h
new file mode 100644
index 000000000000..081744265f2a
--- /dev/null
+++ b/drivers/net/wireless/ath/ath11k/spectral.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (c) 2019-2020 The Linux Foundation. All rights reserved.
+ */
+
+#ifndef ATH11K_SPECTRAL_H
+#define ATH11K_SPECTRAL_H
+
+#include "../spectral_common.h"
+#include "dbring.h"
+
+/* enum ath11k_spectral_mode:
+ *
+ * @SPECTRAL_DISABLED: spectral mode is disabled
+ * @SPECTRAL_BACKGROUND: hardware sends samples when it is not busy with
+ *	something else.
+ * @SPECTRAL_MANUAL: spectral scan is enabled, triggering for samples
+ *	is performed manually.
+ */
+enum ath11k_spectral_mode {
+	ATH11K_SPECTRAL_DISABLED = 0,
+	ATH11K_SPECTRAL_BACKGROUND,
+	ATH11K_SPECTRAL_MANUAL,
+};
+
+struct ath11k_spectral {
+	struct ath11k_dbring rx_ring;
+	/* Protects enabled */
+	spinlock_t lock;
+	struct rchan *rfs_scan;	/* relay(fs) channel for spectral scan */
+	struct dentry *scan_ctl;
+	struct dentry *scan_count;
+	struct dentry *scan_bins;
+	enum ath11k_spectral_mode mode;
+	u16 count;
+	u8 fft_size;
+	bool enabled;
+};
+
+#ifdef CONFIG_ATH11K_SPECTRAL
+
+int ath11k_spectral_init(struct ath11k_base *ab);
+void ath11k_spectral_deinit(struct ath11k_base *ab);
+int ath11k_spectral_vif_stop(struct ath11k_vif *arvif);
+void ath11k_spectral_reset_buffer(struct ath11k *ar);
+enum ath11k_spectral_mode ath11k_spectral_get_mode(struct ath11k *ar);
+struct ath11k_dbring *ath11k_spectral_get_dbring(struct ath11k *ar);
+
+#else
+
+static inline int ath11k_spectral_init(struct ath11k_base *ab)
+{
+	return 0;
+}
+
+static inline void ath11k_spectral_deinit(struct ath11k_base *ab)
+{
+}
+
+static inline int ath11k_spectral_vif_stop(struct ath11k_vif *arvif)
+{
+	return 0;
+}
+
+static inline void ath11k_spectral_reset_buffer(struct ath11k *ar)
+{
+}
+
+static inline
+enum ath11k_spectral_mode ath11k_spectral_get_mode(struct ath11k *ar)
+{
+	return ATH11K_SPECTRAL_DISABLED;
+}
+
+static inline
+struct ath11k_dbring *ath11k_spectral_get_dbring(struct ath11k *ar)
+{
+	return NULL;
+}
+
+#endif /* CONFIG_ATH11K_SPECTRAL */
+#endif /* ATH11K_SPECTRAL_H */
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 6033ec4e11e5..457a9f79f351 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -63,6 +63,16 @@ struct wmi_tlv_rdy_parse {
 	u32 num_extra_mac_addr;
 };
 
+struct wmi_tlv_dma_buf_release_parse {
+	struct ath11k_wmi_dma_buf_release_fixed_param fixed;
+	struct wmi_dma_buf_release_entry *buf_entry;
+	struct wmi_dma_buf_release_meta_data *meta_data;
+	u32 num_buf_entry;
+	u32 num_meta;
+	bool buf_entry_done;
+	bool meta_data_done;
+};
+
 static const struct wmi_tlv_policy wmi_tlv_policies[] = {
 	[WMI_TAG_ARRAY_BYTE]
 		= { .min_len = 0 },
@@ -3388,6 +3398,80 @@ int ath11k_wmi_cmd_init(struct ath11k_base *ab)
 	return ath11k_init_cmd_send(&wmi_sc->wmi[0], &init_param);
 }
 
+int ath11k_wmi_vdev_spectral_conf(struct ath11k *ar,
+				  struct ath11k_wmi_vdev_spectral_conf_param *param)
+{
+	struct ath11k_wmi_vdev_spectral_conf_cmd *cmd;
+	struct sk_buff *skb;
+	int ret;
+
+	skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct ath11k_wmi_vdev_spectral_conf_cmd *)skb->data;
+	cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG,
+				     WMI_TAG_VDEV_SPECTRAL_CONFIGURE_CMD) |
+			  FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+
+	memcpy(&cmd->param, param, sizeof(*param));
+
+	ret = ath11k_wmi_cmd_send(ar->wmi, skb,
+				  WMI_VDEV_SPECTRAL_SCAN_CONFIGURE_CMDID);
+	if (ret) {
+		ath11k_warn(ar->ab,
+			    "failed to send spectral scan config wmi cmd\n");
+		goto err;
+	}
+
+	ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
+		   "WMI spectral scan config cmd vdev_id 0x%x\n",
+		   param->vdev_id);
+
+	return 0;
+err:
+	dev_kfree_skb(skb);
+	return ret;
+}
+
+int ath11k_wmi_vdev_spectral_enable(struct ath11k *ar, u32 vdev_id,
+				    u32 trigger, u32 enable)
+{
+	struct ath11k_wmi_vdev_spectral_enable_cmd *cmd;
+	struct sk_buff *skb;
+	int ret;
+
+	skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct ath11k_wmi_vdev_spectral_enable_cmd *)skb->data;
+	cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG,
+				     WMI_TAG_VDEV_SPECTRAL_ENABLE_CMD) |
+			  FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE);
+
+	cmd->vdev_id = vdev_id;
+	cmd->trigger_cmd = trigger;
+	cmd->enable_cmd = enable;
+
+	ret = ath11k_wmi_cmd_send(ar->wmi, skb,
+				  WMI_VDEV_SPECTRAL_SCAN_ENABLE_CMDID);
+	if (ret) {
+		ath11k_warn(ar->ab,
+			    "failed to send spectral enable wmi cmd\n");
+		goto err;
+	}
+
+	ath11k_dbg(ar->ab, ATH11K_DBG_WMI,
+		   "WMI spectral enable cmd vdev id 0x%x\n",
+		   vdev_id);
+
+	return 0;
+err:
+	dev_kfree_skb(skb);
+	return ret;
+}
+
 int ath11k_wmi_pdev_dma_ring_cfg(struct ath11k *ar,
 				 struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd *param)
 {
@@ -3434,6 +3518,116 @@ err:
 	return ret;
 }
 
+static int ath11k_wmi_tlv_dma_buf_entry_parse(struct ath11k_base *soc,
+					      u16 tag, u16 len,
+					      const void *ptr, void *data)
+{
+	struct wmi_tlv_dma_buf_release_parse *parse = data;
+
+	if (tag != WMI_TAG_DMA_BUF_RELEASE_ENTRY)
+		return -EPROTO;
+
+	if (parse->num_buf_entry >= parse->fixed.num_buf_release_entry)
+		return -ENOBUFS;
+
+	parse->num_buf_entry++;
+	return 0;
+}
+
+static int ath11k_wmi_tlv_dma_buf_meta_parse(struct ath11k_base *soc,
+					     u16 tag, u16 len,
+					     const void *ptr, void *data)
+{
+	struct wmi_tlv_dma_buf_release_parse *parse = data;
+
+	if (tag != WMI_TAG_DMA_BUF_RELEASE_SPECTRAL_META_DATA)
+		return -EPROTO;
+
+	if (parse->num_meta >= parse->fixed.num_meta_data_entry)
+		return -ENOBUFS;
+
+	parse->num_meta++;
+	return 0;
+}
+
+static int ath11k_wmi_tlv_dma_buf_parse(struct ath11k_base *ab,
+					u16 tag, u16 len,
+					const void *ptr, void *data)
+{
+	struct wmi_tlv_dma_buf_release_parse *parse = data;
+	int ret;
+
+	switch (tag) {
+	case WMI_TAG_DMA_BUF_RELEASE:
+		memcpy(&parse->fixed, ptr,
+		       sizeof(struct ath11k_wmi_dma_buf_release_fixed_param));
+		parse->fixed.pdev_id = DP_HW2SW_MACID(parse->fixed.pdev_id);
+		break;
+	case WMI_TAG_ARRAY_STRUCT:
+		if (!parse->buf_entry_done) {
+			parse->num_buf_entry = 0;
+			parse->buf_entry = (struct wmi_dma_buf_release_entry *)ptr;
+
+			ret = ath11k_wmi_tlv_iter(ab, ptr, len,
+						  ath11k_wmi_tlv_dma_buf_entry_parse,
+						  parse);
+			if (ret) {
+				ath11k_warn(ab, "failed to parse dma buf entry tlv %d\n",
+					    ret);
+				return ret;
+			}
+
+			parse->buf_entry_done = true;
+		} else if (!parse->meta_data_done) {
+			parse->num_meta = 0;
+			parse->meta_data = (struct wmi_dma_buf_release_meta_data *)ptr;
+
+			ret = ath11k_wmi_tlv_iter(ab, ptr, len,
+						  ath11k_wmi_tlv_dma_buf_meta_parse,
+						  parse);
+			if (ret) {
+				ath11k_warn(ab, "failed to parse dma buf meta tlv %d\n",
+					    ret);
+				return ret;
+			}
+
+			parse->meta_data_done = true;
+		}
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static void ath11k_wmi_pdev_dma_ring_buf_release_event(struct ath11k_base *ab,
+						       struct sk_buff *skb)
+{
+	struct wmi_tlv_dma_buf_release_parse parse = { };
+	struct ath11k_dbring_buf_release_event param;
+	int ret;
+
+	ret = ath11k_wmi_tlv_iter(ab, skb->data, skb->len,
+				  ath11k_wmi_tlv_dma_buf_parse,
+				  &parse);
+	if (ret) {
+		ath11k_warn(ab, "failed to parse dma buf release tlv %d\n", ret);
+		return;
+	}
+
+	param.fixed		= parse.fixed;
+	param.buf_entry		= parse.buf_entry;
+	param.num_buf_entry	= parse.num_buf_entry;
+	param.meta_data		= parse.meta_data;
+	param.num_meta		= parse.num_meta;
+
+	ret = ath11k_dbring_buffer_release_event(ab, &param);
+	if (ret) {
+		ath11k_warn(ab, "failed to handle dma buf release event %d\n", ret);
+		return;
+	}
+}
+
 static int ath11k_wmi_tlv_hw_mode_caps_parse(struct ath11k_base *soc,
 					     u16 tag, u16 len,
 					     const void *ptr, void *data)
@@ -6326,12 +6520,16 @@ static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb)
 	case WMI_PDEV_TEMPERATURE_EVENTID:
 		ath11k_wmi_pdev_temperature_event(ab, skb);
 		break;
+	case WMI_PDEV_DMA_RING_BUF_RELEASE_EVENTID:
+		ath11k_wmi_pdev_dma_ring_buf_release_event(ab, skb);
+		break;
 	/* add Unsupported events here */
 	case WMI_TBTTOFFSET_EXT_UPDATE_EVENTID:
 	case WMI_VDEV_DELETE_RESP_EVENTID:
 	case WMI_PEER_OPER_MODE_CHANGE_EVENTID:
 	case WMI_TWT_ENABLE_EVENTID:
 	case WMI_TWT_DISABLE_EVENTID:
+	case WMI_PDEV_DMA_RING_CFG_RSP_EVENTID:
 		ath11k_dbg(ab, ATH11K_DBG_WMI,
 			   "ignoring unsupported event 0x%x\n", id);
 		break;
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 82c493b94ed8..5a32ba0eb4f5 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -2031,6 +2031,7 @@ enum wmi_tlv_service {
 	WMI_TLV_SERVICE_DSM_ROAM_FILTER = 211,
 	WMI_TLV_SERVICE_PACKET_CAPTURE_SUPPORT = 212,
 	WMI_TLV_SERVICE_PER_PEER_HTT_STATS_RESET = 213,
+	WMI_TLV_SERVICE_FREQINFO_IN_METADATA = 219,
 	WMI_TLV_SERVICE_EXT2_MSG = 220,
 
 	WMI_MAX_EXT_SERVICE
@@ -4796,6 +4797,64 @@ struct ath11k_wmi_pdev_lro_config_cmd {
 	u32 pdev_id;
 } __packed;
 
+#define ATH11K_WMI_SPECTRAL_COUNT_DEFAULT                 0
+#define ATH11K_WMI_SPECTRAL_PERIOD_DEFAULT              224
+#define ATH11K_WMI_SPECTRAL_PRIORITY_DEFAULT              1
+#define ATH11K_WMI_SPECTRAL_FFT_SIZE_DEFAULT              7
+#define ATH11K_WMI_SPECTRAL_GC_ENA_DEFAULT                1
+#define ATH11K_WMI_SPECTRAL_RESTART_ENA_DEFAULT           0
+#define ATH11K_WMI_SPECTRAL_NOISE_FLOOR_REF_DEFAULT     -96
+#define ATH11K_WMI_SPECTRAL_INIT_DELAY_DEFAULT           80
+#define ATH11K_WMI_SPECTRAL_NB_TONE_THR_DEFAULT          12
+#define ATH11K_WMI_SPECTRAL_STR_BIN_THR_DEFAULT           8
+#define ATH11K_WMI_SPECTRAL_WB_RPT_MODE_DEFAULT           0
+#define ATH11K_WMI_SPECTRAL_RSSI_RPT_MODE_DEFAULT         0
+#define ATH11K_WMI_SPECTRAL_RSSI_THR_DEFAULT           0xf0
+#define ATH11K_WMI_SPECTRAL_PWR_FORMAT_DEFAULT            0
+#define ATH11K_WMI_SPECTRAL_RPT_MODE_DEFAULT              2
+#define ATH11K_WMI_SPECTRAL_BIN_SCALE_DEFAULT             1
+#define ATH11K_WMI_SPECTRAL_DBM_ADJ_DEFAULT               1
+#define ATH11K_WMI_SPECTRAL_CHN_MASK_DEFAULT              1
+
+struct ath11k_wmi_vdev_spectral_conf_param {
+	u32 vdev_id;
+	u32 scan_count;
+	u32 scan_period;
+	u32 scan_priority;
+	u32 scan_fft_size;
+	u32 scan_gc_ena;
+	u32 scan_restart_ena;
+	u32 scan_noise_floor_ref;
+	u32 scan_init_delay;
+	u32 scan_nb_tone_thr;
+	u32 scan_str_bin_thr;
+	u32 scan_wb_rpt_mode;
+	u32 scan_rssi_rpt_mode;
+	u32 scan_rssi_thr;
+	u32 scan_pwr_format;
+	u32 scan_rpt_mode;
+	u32 scan_bin_scale;
+	u32 scan_dbm_adj;
+	u32 scan_chn_mask;
+} __packed;
+
+struct ath11k_wmi_vdev_spectral_conf_cmd {
+	u32 tlv_header;
+	struct ath11k_wmi_vdev_spectral_conf_param param;
+} __packed;
+
+#define ATH11K_WMI_SPECTRAL_TRIGGER_CMD_TRIGGER  1
+#define ATH11K_WMI_SPECTRAL_TRIGGER_CMD_CLEAR    2
+#define ATH11K_WMI_SPECTRAL_ENABLE_CMD_ENABLE    1
+#define ATH11K_WMI_SPECTRAL_ENABLE_CMD_DISABLE   2
+
+struct ath11k_wmi_vdev_spectral_enable_cmd {
+	u32 tlv_header;
+	u32 vdev_id;
+	u32 trigger_cmd;
+	u32 enable_cmd;
+} __packed;
+
 struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd {
 	u32 tlv_header;
 	u32 pdev_id;
@@ -5058,4 +5117,8 @@ int ath11k_wmi_send_bss_color_change_enable_cmd(struct ath11k *ar, u32 vdev_id,
 int ath11k_wmi_pdev_lro_cfg(struct ath11k *ar, int pdev_id);
 int ath11k_wmi_pdev_dma_ring_cfg(struct ath11k *ar,
 				 struct ath11k_wmi_pdev_dma_ring_cfg_req_cmd *param);
+int ath11k_wmi_vdev_spectral_enable(struct ath11k *ar, u32 vdev_id,
+				    u32 trigger, u32 enable);
+int ath11k_wmi_vdev_spectral_conf(struct ath11k *ar,
+				  struct ath11k_wmi_vdev_spectral_conf_param *param);
 #endif
diff --git a/drivers/net/wireless/ath/spectral_common.h b/drivers/net/wireless/ath/spectral_common.h
index 0d742acb1599..9c2e5458e425 100644
--- a/drivers/net/wireless/ath/spectral_common.h
+++ b/drivers/net/wireless/ath/spectral_common.h
@@ -24,6 +24,7 @@
  * could be acquired so far.
  */
 #define SPECTRAL_ATH10K_MAX_NUM_BINS		256
+#define SPECTRAL_ATH11K_MAX_NUM_BINS		512
 
 /* FFT sample format given to userspace via debugfs.
  *
@@ -37,6 +38,7 @@ enum ath_fft_sample_type {
 	ATH_FFT_SAMPLE_HT20 = 1,
 	ATH_FFT_SAMPLE_HT20_40,
 	ATH_FFT_SAMPLE_ATH10K,
+	ATH_FFT_SAMPLE_ATH11K
 };
 
 struct fft_sample_tlv {
@@ -110,4 +112,19 @@ struct fft_sample_ath10k {
 	u8 data[0];
 } __packed;
 
+struct fft_sample_ath11k {
+	struct fft_sample_tlv tlv;
+	u8 chan_width_mhz;
+	s8 max_index;
+	u8 max_exp;
+	__be16 freq1;
+	__be16 freq2;
+	__be16 max_magnitude;
+	__be16 rssi;
+	__be32 tsf;
+	__be32 noise;
+
+	u8 data[0];
+} __packed;
+
 #endif /* SPECTRAL_COMMON_H */
-- 
cgit 


From 8cacd0389c4f6056250377f44fbfe18a2501dd79 Mon Sep 17 00:00:00 2001
From: Sowmiya Sree Elavalagan <ssreeela@codeaurora.org>
Date: Thu, 11 Jun 2020 08:09:53 +0300
Subject: ath11k: removing redundant reo unlock followed by immediate lock

Removed reo cmd lock and unlock which was acquiring the lock immediately
after unlock. Done for code clean up.

Signed-off-by: Sowmiya Sree Elavalagan <ssreeela@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591713432-26426-1-git-send-email-ssreeela@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/dp_rx.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 112f130f91c2..a9cc1a457c33 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -653,10 +653,8 @@ static void ath11k_dp_rx_tid_del_func(struct ath11k_dp *dp, void *ctx,
 	spin_lock_bh(&dp->reo_cmd_lock);
 	list_add_tail(&elem->list, &dp->reo_cmd_cache_flush_list);
 	dp->reo_cmd_cache_flush_count++;
-	spin_unlock_bh(&dp->reo_cmd_lock);
 
 	/* Flush and invalidate aged REO desc from HW cache */
-	spin_lock_bh(&dp->reo_cmd_lock);
 	list_for_each_entry_safe(elem, tmp, &dp->reo_cmd_cache_flush_list,
 				 list) {
 		if (dp->reo_cmd_cache_flush_count > DP_REO_DESC_FREE_THRESHOLD ||
-- 
cgit 


From 0dd6392ac2c0eb3e229631744f54b61789139e33 Mon Sep 17 00:00:00 2001
From: Sriram R <srirrama@codeaurora.org>
Date: Thu, 11 Jun 2020 08:09:54 +0300
Subject: ath11k: Add dp tx err stats

Add support for dp tx error stats which logs tx failure reasons due
to ring full condition, etc. This stats is added in soc_dp_stats
which was earlier used as soc_rx_stats so that all dp related info
are logged in same file.

Below is an example usage,

root@OpenWrt:/# cat /sys/kernel/debug/ath11k/ipq8074/soc_dp_stats
SOC RX STATS:

err ring pkts: 0
Invalid RBM: 0
<snip>

SOC TX STATS:

Ring Full Failures:
ring0: 4
ring1: 3
ring2: 5

Misc Transmit Failures: 2

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01213-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591768308-32005-2-git-send-email-srirrama@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/core.h  | 14 ++++++++++++--
 drivers/net/wireless/ath/ath11k/debug.c | 23 +++++++++++++++++------
 drivers/net/wireless/ath/ath11k/dp_tx.c |  7 ++++++-
 3 files changed, 35 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 7e9e9762b1ca..1ff54c2c2c95 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -590,12 +590,22 @@ struct ath11k_board_data {
 /* IPQ8074 HW channel counters frequency value in hertz */
 #define IPQ8074_CC_FREQ_HERTZ 320000
 
-struct ath11k_soc_dp_rx_stats {
+struct ath11k_soc_dp_tx_err_stats {
+	/* TCL Ring Descriptor unavailable */
+	u32 desc_na[DP_TCL_NUM_RING_MAX];
+	/* Other failures during dp_tx due to mem allocation failure
+	 * idr unavailable etc.
+	 */
+	atomic_t misc_fail;
+};
+
+struct ath11k_soc_dp_stats {
 	u32 err_ring_pkts;
 	u32 invalid_rbm;
 	u32 rxdma_error[HAL_REO_ENTR_RING_RXDMA_ECODE_MAX];
 	u32 reo_error[HAL_REO_DEST_RING_ERROR_CODE_MAX];
 	u32 hal_reo_error[DP_REO_DST_RING_MAX];
+	struct ath11k_soc_dp_tx_err_stats tx_err;
 };
 
 /* Master structure to hold the hw data which may be used in core module */
@@ -664,7 +674,7 @@ struct ath11k_base {
 	struct dentry *debugfs_soc;
 	struct dentry *debugfs_ath11k;
 #endif
-	struct ath11k_soc_dp_rx_stats soc_stats;
+	struct ath11k_soc_dp_stats soc_stats;
 
 	unsigned long dev_flags;
 	struct completion driver_recovery;
diff --git a/drivers/net/wireless/ath/ath11k/debug.c b/drivers/net/wireless/ath/ath11k/debug.c
index 3fd6b5af073b..647d5a50043f 100644
--- a/drivers/net/wireless/ath/ath11k/debug.c
+++ b/drivers/net/wireless/ath/ath11k/debug.c
@@ -739,12 +739,12 @@ static const struct file_operations fops_extd_rx_stats = {
 	.open = simple_open,
 };
 
-static ssize_t ath11k_debug_dump_soc_rx_stats(struct file *file,
+static ssize_t ath11k_debug_dump_soc_dp_stats(struct file *file,
 					      char __user *user_buf,
 					      size_t count, loff_t *ppos)
 {
 	struct ath11k_base *ab = file->private_data;
-	struct ath11k_soc_dp_rx_stats *soc_stats = &ab->soc_stats;
+	struct ath11k_soc_dp_stats *soc_stats = &ab->soc_stats;
 	int len = 0, i, retval;
 	const int size = 4096;
 	static const char *rxdma_err[HAL_REO_ENTR_RING_RXDMA_ECODE_MAX] = {
@@ -788,6 +788,17 @@ static ssize_t ath11k_debug_dump_soc_rx_stats(struct file *file,
 			 soc_stats->hal_reo_error[2],
 			 soc_stats->hal_reo_error[3]);
 
+	len += scnprintf(buf + len, size - len, "\nSOC TX STATS:\n");
+	len += scnprintf(buf + len, size - len, "\nTCL Ring Full Failures:\n");
+
+	for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
+		len += scnprintf(buf + len, size - len, "ring%d: %u\n",
+				 i, soc_stats->tx_err.desc_na[i]);
+
+	len += scnprintf(buf + len, size - len,
+			 "\nMisc Transmit Failures: %d\n",
+			 atomic_read(&soc_stats->tx_err.misc_fail));
+
 	if (len > size)
 		len = size;
 	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
@@ -796,8 +807,8 @@ static ssize_t ath11k_debug_dump_soc_rx_stats(struct file *file,
 	return retval;
 }
 
-static const struct file_operations fops_soc_rx_stats = {
-	.read = ath11k_debug_dump_soc_rx_stats,
+static const struct file_operations fops_soc_dp_stats = {
+	.read = ath11k_debug_dump_soc_dp_stats,
 	.open = simple_open,
 	.owner = THIS_MODULE,
 	.llseek = default_llseek,
@@ -819,8 +830,8 @@ int ath11k_debug_pdev_create(struct ath11k_base *ab)
 	debugfs_create_file("simulate_fw_crash", 0600, ab->debugfs_soc, ab,
 			    &fops_simulate_fw_crash);
 
-	debugfs_create_file("soc_rx_stats", 0600, ab->debugfs_soc, ab,
-			    &fops_soc_rx_stats);
+	debugfs_create_file("soc_dp_stats", 0600, ab->debugfs_soc, ab,
+			    &fops_soc_dp_stats);
 
 	return 0;
 }
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c
index 41c990aec6b7..1af76775b1a8 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
@@ -121,8 +121,10 @@ tcl_ring_sel:
 	spin_unlock_bh(&tx_ring->tx_idr_lock);
 
 	if (ret < 0) {
-		if (ring_map == (BIT(DP_TCL_NUM_RING_MAX) - 1))
+		if (ring_map == (BIT(DP_TCL_NUM_RING_MAX) - 1)) {
+			atomic_inc(&ab->soc_stats.tx_err.misc_fail);
 			return -ENOSPC;
+		}
 
 		/* Check if the next ring is available */
 		ring_selector++;
@@ -180,11 +182,13 @@ tcl_ring_sel:
 	default:
 		/* TODO: Take care of other encap modes as well */
 		ret = -EINVAL;
+		atomic_inc(&ab->soc_stats.tx_err.misc_fail);
 		goto fail_remove_idr;
 	}
 
 	ti.paddr = dma_map_single(ab->dev, skb->data, skb->len, DMA_TO_DEVICE);
 	if (dma_mapping_error(ab->dev, ti.paddr)) {
+		atomic_inc(&ab->soc_stats.tx_err.misc_fail);
 		ath11k_warn(ab, "failed to DMA map data Tx buffer\n");
 		ret = -ENOMEM;
 		goto fail_remove_idr;
@@ -208,6 +212,7 @@ tcl_ring_sel:
 		 * desc because the desc is directly enqueued onto hw queue.
 		 */
 		ath11k_hal_srng_access_end(ab, tcl_ring);
+		ab->soc_stats.tx_err.desc_na[ti.ring_id]++;
 		spin_unlock_bh(&tcl_ring->lock);
 		ret = -ENOMEM;
 
-- 
cgit 


From 71fbc847978f51629856d0ef7d3645d9322fb340 Mon Sep 17 00:00:00 2001
From: Sriram R <srirrama@codeaurora.org>
Date: Thu, 11 Jun 2020 08:09:54 +0300
Subject: ath11k: Add support for ring backpressure stats

Add support for collecting and dumping the ring backpressure
stats via debugfs. Stats are dumped only if events are
received for the specific ring.

Below command can be used to obtain these stats as part of soc dp stats.
cat /sys/kernel/debug/ath11k/ipq8074/soc_dp_stats

 Sample Output - When No stats available:

 Backpressure Stats
 ==================
 No Ring Backpressure stats received

 Sample Output -  When ring bp stats available for specific ring

 Backpressure Stats
 ==================
 Ring: REO2SW1_RING
 count: 1
 hp: 2
 tp: 2
 seen before: 4ms

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01213-QCAHKSWPL_SILICONZ-1

Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591768308-32005-3-git-send-email-srirrama@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/core.h  |  20 ++++++
 drivers/net/wireless/ath/ath11k/debug.c | 105 ++++++++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath11k/dp.h    |  42 +++++++++++++
 drivers/net/wireless/ath/ath11k/dp_rx.c |  28 ++++++++-
 4 files changed, 194 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 1ff54c2c2c95..46e53da49884 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -590,6 +590,25 @@ struct ath11k_board_data {
 /* IPQ8074 HW channel counters frequency value in hertz */
 #define IPQ8074_CC_FREQ_HERTZ 320000
 
+struct ath11k_bp_stats {
+	/* Head Pointer reported by the last HTT Backpressure event for the ring */
+	u16 hp;
+
+	/* Tail Pointer reported by the last HTT Backpressure event for the ring */
+	u16 tp;
+
+	/* Number of Backpressure events received for the ring */
+	u32 count;
+
+	/* Last recorded event timestamp */
+	unsigned long jiffies;
+};
+
+struct ath11k_dp_ring_bp_stats {
+	struct ath11k_bp_stats umac_ring_bp_stats[HTT_SW_UMAC_RING_IDX_MAX];
+	struct ath11k_bp_stats lmac_ring_bp_stats[HTT_SW_LMAC_RING_IDX_MAX][MAX_RADIOS];
+};
+
 struct ath11k_soc_dp_tx_err_stats {
 	/* TCL Ring Descriptor unavailable */
 	u32 desc_na[DP_TCL_NUM_RING_MAX];
@@ -606,6 +625,7 @@ struct ath11k_soc_dp_stats {
 	u32 reo_error[HAL_REO_DEST_RING_ERROR_CODE_MAX];
 	u32 hal_reo_error[DP_REO_DST_RING_MAX];
 	struct ath11k_soc_dp_tx_err_stats tx_err;
+	struct ath11k_dp_ring_bp_stats bp_stats;
 };
 
 /* Master structure to hold the hw data which may be used in core module */
diff --git a/drivers/net/wireless/ath/ath11k/debug.c b/drivers/net/wireless/ath/ath11k/debug.c
index 647d5a50043f..62a1aa0565a9 100644
--- a/drivers/net/wireless/ath/ath11k/debug.c
+++ b/drivers/net/wireless/ath/ath11k/debug.c
@@ -12,6 +12,43 @@
 #include "debug_htt_stats.h"
 #include "peer.h"
 
+static const char *htt_bp_umac_ring[HTT_SW_UMAC_RING_IDX_MAX] = {
+	"REO2SW1_RING",
+	"REO2SW2_RING",
+	"REO2SW3_RING",
+	"REO2SW4_RING",
+	"WBM2REO_LINK_RING",
+	"REO2TCL_RING",
+	"REO2FW_RING",
+	"RELEASE_RING",
+	"PPE_RELEASE_RING",
+	"TCL2TQM_RING",
+	"TQM_RELEASE_RING",
+	"REO_RELEASE_RING",
+	"WBM2SW0_RELEASE_RING",
+	"WBM2SW1_RELEASE_RING",
+	"WBM2SW2_RELEASE_RING",
+	"WBM2SW3_RELEASE_RING",
+	"REO_CMD_RING",
+	"REO_STATUS_RING",
+};
+
+static const char *htt_bp_lmac_ring[HTT_SW_LMAC_RING_IDX_MAX] = {
+	"FW2RXDMA_BUF_RING",
+	"FW2RXDMA_STATUS_RING",
+	"FW2RXDMA_LINK_RING",
+	"SW2RXDMA_BUF_RING",
+	"WBM2RXDMA_LINK_RING",
+	"RXDMA2FW_RING",
+	"RXDMA2SW_RING",
+	"RXDMA2RELEASE_RING",
+	"RXDMA2REO_RING",
+	"MONITOR_STATUS_RING",
+	"MONITOR_BUF_RING",
+	"MONITOR_DESC_RING",
+	"MONITOR_DEST_RING",
+};
+
 void ath11k_info(struct ath11k_base *ab, const char *fmt, ...)
 {
 	struct va_format vaf = {
@@ -739,6 +776,72 @@ static const struct file_operations fops_extd_rx_stats = {
 	.open = simple_open,
 };
 
+static int ath11k_fill_bp_stats(struct ath11k_base *ab,
+				struct ath11k_bp_stats *bp_stats,
+				char *buf, int len, int size)
+{
+	lockdep_assert_held(&ab->base_lock);
+
+	len += scnprintf(buf + len, size - len, "count: %u\n",
+			 bp_stats->count);
+	len += scnprintf(buf + len, size - len, "hp: %u\n",
+			 bp_stats->hp);
+	len += scnprintf(buf + len, size - len, "tp: %u\n",
+			 bp_stats->tp);
+	len += scnprintf(buf + len, size - len, "seen before: %ums\n\n",
+			 jiffies_to_msecs(jiffies - bp_stats->jiffies));
+	return len;
+}
+
+static ssize_t ath11k_debug_dump_soc_ring_bp_stats(struct ath11k_base *ab,
+						   char *buf, int size)
+{
+	struct ath11k_bp_stats *bp_stats;
+	bool stats_rxd = false;
+	u8 i, pdev_idx;
+	int len = 0;
+
+	len += scnprintf(buf + len, size - len, "\nBackpressure Stats\n");
+	len += scnprintf(buf + len, size - len, "==================\n");
+
+	spin_lock_bh(&ab->base_lock);
+	for (i = 0; i < HTT_SW_UMAC_RING_IDX_MAX; i++) {
+		bp_stats = &ab->soc_stats.bp_stats.umac_ring_bp_stats[i];
+
+		if (!bp_stats->count)
+			continue;
+
+		len += scnprintf(buf + len, size - len, "Ring: %s\n",
+				 htt_bp_umac_ring[i]);
+		len = ath11k_fill_bp_stats(ab, bp_stats, buf, len, size);
+		stats_rxd = true;
+	}
+
+	for (i = 0; i < HTT_SW_LMAC_RING_IDX_MAX; i++) {
+		for (pdev_idx = 0; pdev_idx < MAX_RADIOS; pdev_idx++) {
+			bp_stats =
+				&ab->soc_stats.bp_stats.lmac_ring_bp_stats[i][pdev_idx];
+
+			if (!bp_stats->count)
+				continue;
+
+			len += scnprintf(buf + len, size - len, "Ring: %s\n",
+					 htt_bp_lmac_ring[i]);
+			len += scnprintf(buf + len, size - len, "pdev: %d\n",
+					 pdev_idx);
+			len = ath11k_fill_bp_stats(ab, bp_stats, buf, len, size);
+			stats_rxd = true;
+		}
+	}
+	spin_unlock_bh(&ab->base_lock);
+
+	if (!stats_rxd)
+		len += scnprintf(buf + len, size - len,
+				 "No Ring Backpressure stats received\n\n");
+
+	return len;
+}
+
 static ssize_t ath11k_debug_dump_soc_dp_stats(struct file *file,
 					      char __user *user_buf,
 					      size_t count, loff_t *ppos)
@@ -799,6 +902,8 @@ static ssize_t ath11k_debug_dump_soc_dp_stats(struct file *file,
 			 "\nMisc Transmit Failures: %d\n",
 			 atomic_read(&soc_stats->tx_err.misc_fail));
 
+	len += ath11k_debug_dump_soc_ring_bp_stats(ab, buf + len, size - len);
+
 	if (len > size)
 		len = size;
 	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
diff --git a/drivers/net/wireless/ath/ath11k/dp.h b/drivers/net/wireless/ath/ath11k/dp.h
index 058a5c1d86ff..7587862d2e32 100644
--- a/drivers/net/wireless/ath/ath11k/dp.h
+++ b/drivers/net/wireless/ath/ath11k/dp.h
@@ -999,6 +999,48 @@ struct htt_resp_msg {
 #define HTT_BACKPRESSURE_EVENT_HP_M GENMASK(15, 0)
 #define HTT_BACKPRESSURE_EVENT_TP_M GENMASK(31, 16)
 
+#define HTT_BACKPRESSURE_UMAC_RING_TYPE	0
+#define HTT_BACKPRESSURE_LMAC_RING_TYPE	1
+
+enum htt_backpressure_umac_ringid {
+	HTT_SW_RING_IDX_REO_REO2SW1_RING,
+	HTT_SW_RING_IDX_REO_REO2SW2_RING,
+	HTT_SW_RING_IDX_REO_REO2SW3_RING,
+	HTT_SW_RING_IDX_REO_REO2SW4_RING,
+	HTT_SW_RING_IDX_REO_WBM2REO_LINK_RING,
+	HTT_SW_RING_IDX_REO_REO2TCL_RING,
+	HTT_SW_RING_IDX_REO_REO2FW_RING,
+	HTT_SW_RING_IDX_REO_REO_RELEASE_RING,
+	HTT_SW_RING_IDX_WBM_PPE_RELEASE_RING,
+	HTT_SW_RING_IDX_TCL_TCL2TQM_RING,
+	HTT_SW_RING_IDX_WBM_TQM_RELEASE_RING,
+	HTT_SW_RING_IDX_WBM_REO_RELEASE_RING,
+	HTT_SW_RING_IDX_WBM_WBM2SW0_RELEASE_RING,
+	HTT_SW_RING_IDX_WBM_WBM2SW1_RELEASE_RING,
+	HTT_SW_RING_IDX_WBM_WBM2SW2_RELEASE_RING,
+	HTT_SW_RING_IDX_WBM_WBM2SW3_RELEASE_RING,
+	HTT_SW_RING_IDX_REO_REO_CMD_RING,
+	HTT_SW_RING_IDX_REO_REO_STATUS_RING,
+	HTT_SW_UMAC_RING_IDX_MAX,
+};
+
+enum htt_backpressure_lmac_ringid {
+	HTT_SW_RING_IDX_FW2RXDMA_BUF_RING,
+	HTT_SW_RING_IDX_FW2RXDMA_STATUS_RING,
+	HTT_SW_RING_IDX_FW2RXDMA_LINK_RING,
+	HTT_SW_RING_IDX_SW2RXDMA_BUF_RING,
+	HTT_SW_RING_IDX_WBM2RXDMA_LINK_RING,
+	HTT_SW_RING_IDX_RXDMA2FW_RING,
+	HTT_SW_RING_IDX_RXDMA2SW_RING,
+	HTT_SW_RING_IDX_RXDMA2RELEASE_RING,
+	HTT_SW_RING_IDX_RXDMA2REO_RING,
+	HTT_SW_RING_IDX_MONITOR_STATUS_RING,
+	HTT_SW_RING_IDX_MONITOR_BUF_RING,
+	HTT_SW_RING_IDX_MONITOR_DESC_RING,
+	HTT_SW_RING_IDX_MONITOR_DEST_RING,
+	HTT_SW_LMAC_RING_IDX_MAX,
+};
+
 /* ppdu stats
  *
  * @details
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index a9cc1a457c33..791d971784ce 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1501,9 +1501,10 @@ static void ath11k_htt_backpressure_event_handler(struct ath11k_base *ab,
 						  struct sk_buff *skb)
 {
 	u32 *data = (u32 *)skb->data;
-	u8 pdev_id, ring_type, ring_id;
+	u8 pdev_id, ring_type, ring_id, pdev_idx;
 	u16 hp, tp;
 	u32 backpressure_time;
+	struct ath11k_bp_stats *bp_stats;
 
 	pdev_id = FIELD_GET(HTT_BACKPRESSURE_EVENT_PDEV_ID_M, *data);
 	ring_type = FIELD_GET(HTT_BACKPRESSURE_EVENT_RING_TYPE_M, *data);
@@ -1518,6 +1519,31 @@ static void ath11k_htt_backpressure_event_handler(struct ath11k_base *ab,
 
 	ath11k_dbg(ab, ATH11K_DBG_DP_HTT, "htt backpressure event, pdev %d, ring type %d,ring id %d, hp %d tp %d, backpressure time %d\n",
 		   pdev_id, ring_type, ring_id, hp, tp, backpressure_time);
+
+	if (ring_type == HTT_BACKPRESSURE_UMAC_RING_TYPE) {
+		if (ring_id >= HTT_SW_UMAC_RING_IDX_MAX)
+			return;
+
+		bp_stats = &ab->soc_stats.bp_stats.umac_ring_bp_stats[ring_id];
+	} else if (ring_type == HTT_BACKPRESSURE_LMAC_RING_TYPE) {
+		pdev_idx = DP_HW2SW_MACID(pdev_id);
+
+		if (ring_id >= HTT_SW_LMAC_RING_IDX_MAX || pdev_idx >= MAX_RADIOS)
+			return;
+
+		bp_stats = &ab->soc_stats.bp_stats.lmac_ring_bp_stats[ring_id][pdev_idx];
+	} else {
+		ath11k_warn(ab, "unknown ring type received in htt bp event %d\n",
+			    ring_type);
+		return;
+	}
+
+	spin_lock_bh(&ab->base_lock);
+	bp_stats->hp = hp;
+	bp_stats->tp = tp;
+	bp_stats->count++;
+	bp_stats->jiffies = jiffies;
+	spin_unlock_bh(&ab->base_lock);
 }
 
 void ath11k_dp_htt_htc_t2h_msg_handler(struct ath11k_base *ab,
-- 
cgit 


From 01e34233c6456ff61f2caab450860f1462acf78e Mon Sep 17 00:00:00 2001
From: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Date: Thu, 11 Jun 2020 08:09:55 +0300
Subject: ath11k: fix wmi peer flags in peer assoc command

Currently need ptk/gtk wmi peer flags in wmi peer assoc cmd
are set based on the rsnie and wpaie of the bss from the bss list.
Since this bss list is not updated with current BSSID for AP mode,
we may not find bss from the bss list. Which results in ptk/gtk peer
flags are not set in the wmi peer assoc cmd. Due to this EAPOL frames
are going in data rates instead of management rates.

Tested-on: IPQ8074 WLAN.HK.2.1.0.1-01228-QCAHKSWPL_SILICONZ-1

Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1591771841-25503-1-git-send-email-vnaralas@codeaurora.org
---
 drivers/net/wireless/ath/ath11k/core.h |  2 ++
 drivers/net/wireless/ath/ath11k/mac.c  | 21 ++++++++++++++++++++-
 drivers/net/wireless/ath/ath11k/wmi.c  |  6 +++---
 3 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 46e53da49884..e5c4e19020ee 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -224,6 +224,8 @@ struct ath11k_vif {
 	int num_legacy_stations;
 	int rtscts_prot_mode;
 	int txpower;
+	bool rsnie_present;
+	bool wpaie_present;
 };
 
 struct ath11k_vif_iter {
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 5ba8f0986079..07d3e031c75a 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -780,6 +780,8 @@ static int ath11k_mac_setup_bcn_tmpl(struct ath11k_vif *arvif)
 	struct ieee80211_vif *vif = arvif->vif;
 	struct ieee80211_mutable_offsets offs = {};
 	struct sk_buff *bcn;
+	struct ieee80211_mgmt *mgmt;
+	u8 *ies;
 	int ret;
 
 	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
@@ -791,6 +793,17 @@ static int ath11k_mac_setup_bcn_tmpl(struct ath11k_vif *arvif)
 		return -EPERM;
 	}
 
+	ies = bcn->data + ieee80211_get_hdrlen_from_skb(bcn);
+	ies += sizeof(mgmt->u.beacon);
+
+	if (cfg80211_find_ie(WLAN_EID_RSN, ies, (skb_tail_pointer(bcn) - ies)))
+		arvif->rsnie_present = true;
+
+	if (cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
+				    WLAN_OUI_TYPE_MICROSOFT_WPA,
+				    ies, (skb_tail_pointer(bcn) - ies)))
+		arvif->wpaie_present = true;
+
 	ret = ath11k_wmi_bcn_tmpl(ar, arvif->vdev_id, &offs, bcn);
 
 	kfree_skb(bcn);
@@ -880,6 +893,7 @@ static void ath11k_peer_assoc_h_crypto(struct ath11k *ar,
 	struct ieee80211_bss_conf *info = &vif->bss_conf;
 	struct cfg80211_chan_def def;
 	struct cfg80211_bss *bss;
+	struct ath11k_vif *arvif = (struct ath11k_vif *)vif->drv_priv;
 	const u8 *rsnie = NULL;
 	const u8 *wpaie = NULL;
 
@@ -890,7 +904,12 @@ static void ath11k_peer_assoc_h_crypto(struct ath11k *ar,
 
 	bss = cfg80211_get_bss(ar->hw->wiphy, def.chan, info->bssid, NULL, 0,
 			       IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
-	if (bss) {
+
+	if (arvif->rsnie_present || arvif->wpaie_present) {
+		arg->need_ptk_4_way = true;
+		if (arvif->wpaie_present)
+			arg->need_gtk_2_way = true;
+	} else if (bss) {
 		const struct cfg80211_bss_ies *ies;
 
 		rcu_read_lock();
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 457a9f79f351..8e3437a65673 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -1728,10 +1728,10 @@ ath11k_wmi_copy_peer_flags(struct wmi_peer_assoc_complete_cmd *cmd,
 	 */
 	if (param->auth_flag)
 		cmd->peer_flags |= WMI_PEER_AUTH;
-	if (param->need_ptk_4_way)
+	if (param->need_ptk_4_way) {
 		cmd->peer_flags |= WMI_PEER_NEED_PTK_4_WAY;
-	else
-		cmd->peer_flags &= ~WMI_PEER_NEED_PTK_4_WAY;
+		cmd->peer_flags &= ~WMI_PEER_AUTH;
+	}
 	if (param->need_gtk_2_way)
 		cmd->peer_flags |= WMI_PEER_NEED_GTK_2_WAY;
 	/* safe mode bypass the 4-way handshake */
-- 
cgit