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From:   gregory.greenman@intel.com
To:     kvalo@kernel.org, johannes@sipsolutions.net
Cc:     linux-wireless@vger.kernel.org,
        Johannes Berg <johannes.berg@intel.com>,
        Gregory Greenman <gregory.greenman@intel.com>
Subject: [PATCH 6/9] wifi: iwlwifi: mvm: set HE PHY bandwidth according to band
Date:   Sun, 20 Nov 2022 19:00:36 +0200
Message-Id: <20221120185147.881d46861305.Ib4cac0b7f90dfadebceceb1e07c8cdfd7a4138f6@changeid>
In-Reply-To: <20221120170039.1788067-1-gregory.greenman@intel.com>
References: <20221120170039.1788067-1-gregory.greenman@intel.com>
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From: Johannes Berg <johannes.berg@intel.com>

The bits are reserved on the opposite bands, so we shouldn't
always send them, only the 2G bit on 2.4 GHz and the 5G bits
on 5/6GHz. Fix that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
---
 .../wireless/intel/iwlwifi/iwl-nvm-parse.c    | 27 ++++++++++++-------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index 2b43fff4d3f9..e83382ded8af 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /*
- * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
+ * Copyright (C) 2005-2014, 2018-2022 Intel Corporation
  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
  * Copyright (C) 2016-2017 Intel Deutschland GmbH
  */
@@ -571,10 +571,6 @@ static const struct ieee80211_sband_iftype_data iwl_he_eht_capa[] = {
 					IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU |
 					IEEE80211_HE_MAC_CAP5_HE_DYNAMIC_SM_PS |
 					IEEE80211_HE_MAC_CAP5_HT_VHT_TRIG_FRAME_RX,
-				.phy_cap_info[0] =
-					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G |
-					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
-					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G,
 				.phy_cap_info[1] =
 					IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
 					IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
@@ -716,9 +712,6 @@ static const struct ieee80211_sband_iftype_data iwl_he_eht_capa[] = {
 					IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
 				.mac_cap_info[3] =
 					IEEE80211_HE_MAC_CAP3_OMI_CONTROL,
-				.phy_cap_info[0] =
-					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G |
-					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G,
 				.phy_cap_info[1] =
 					IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD,
 				.phy_cap_info[2] =
@@ -874,9 +867,23 @@ iwl_nvm_fixup_sband_iftd(struct iwl_trans *trans,
 		iftype_data->he_cap.he_cap_elem.mac_cap_info[3] |=
 			IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
 
-	if (is_ap && iwlwifi_mod_params.nvm_file)
+	switch (sband->band) {
+	case NL80211_BAND_2GHZ:
 		iftype_data->he_cap.he_cap_elem.phy_cap_info[0] |=
-			IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
+			IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
+		break;
+	case NL80211_BAND_6GHZ:
+	case NL80211_BAND_5GHZ:
+		iftype_data->he_cap.he_cap_elem.phy_cap_info[0] |=
+			IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G;
+		if (!is_ap || iwlwifi_mod_params.nvm_file)
+			iftype_data->he_cap.he_cap_elem.phy_cap_info[0] |=
+				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
+		break;
+	default:
+		WARN_ON(1);
+		break;
+	}
 
 	if ((tx_chains & rx_chains) == ANT_AB) {
 		iftype_data->he_cap.he_cap_elem.phy_cap_info[2] |=
-- 
2.35.3