wifi: iwlwifi: mvm: support SPP A-MSDUs

If the firmware has the necessary support, enable SPP A-MSDUs.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240129211905.15e4570e471f.I87cf284d3b19bb9f5558f0f33afaace6d6492acb@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/fw/api/sta.h

 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2012-2014, 2018-2021 Intel Corporation
+ * Copyright (C) 2012-2014, 2018-2021, 2023 Intel Corporation
  * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
  * Copyright (C) 2016-2017 Intel Deutschland GmbH
  */
@@ -109,6 +109,7 @@ enum iwl_sta_flags {
  * @STA_KEY_FLG_EN_MSK: mask for encryption algorithmi value
  * @STA_KEY_FLG_WEP_KEY_MAP: wep is either a group key (0 - legacy WEP) or from
  *	station info array (1 - n 1X mode)
+ * @STA_KEY_FLG_AMSDU_SPP: SPP (signaling and payload protected) A-MSDU
  * @STA_KEY_FLG_KEYID_MSK: the index of the key
  * @STA_KEY_FLG_KEYID_POS: key index bit position
  * @STA_KEY_NOT_VALID: key is invalid
@@ -129,6 +130,7 @@ enum iwl_sta_key_flag {
 	STA_KEY_FLG_EN_MSK		= (7 << 0),
 
 	STA_KEY_FLG_WEP_KEY_MAP		= BIT(3),
+	STA_KEY_FLG_AMSDU_SPP		= BIT(7),
 	STA_KEY_FLG_KEYID_POS		 = 8,
 	STA_KEY_FLG_KEYID_MSK		= (3 << STA_KEY_FLG_KEYID_POS),
 	STA_KEY_NOT_VALID		= BIT(11),

drivers/net/wireless/intel/iwlwifi/fw/file.h

@@ -383,6 +383,8 @@ typedef unsigned int __bitwise iwl_ucode_tlv_capa_t;
  *      channels even when these are not enabled.
  * @IWL_UCODE_TLV_CAPA_DUMP_COMPLETE_SUPPORT: Support for indicating dump collection
  *	complete to FW.
+ * @IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT: Support SPP (signaling and payload
+ *	protected) A-MSDU.
  *
  * @NUM_IWL_UCODE_TLV_CAPA: number of bits used
  */
@@ -468,6 +470,7 @@ enum iwl_ucode_tlv_capa {
 	IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT		= (__force iwl_ucode_tlv_capa_t)98,
 
 	IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT		= (__force iwl_ucode_tlv_capa_t)100,
+	IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT		= (__force iwl_ucode_tlv_capa_t)103,
 	IWL_UCODE_TLV_CAPA_DRAM_FRAG_SUPPORT		= (__force iwl_ucode_tlv_capa_t)104,
 	IWL_UCODE_TLV_CAPA_DUMP_COMPLETE_SUPPORT	= (__force iwl_ucode_tlv_capa_t)105,
 	IWL_UCODE_TLV_CAPA_SYNCED_TIME			= (__force iwl_ucode_tlv_capa_t)106,

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

@@ -495,6 +495,11 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 			IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM))
 		hw->wiphy->hw_timestamp_max_peers = 1;
 
+	if (fw_has_capa(&mvm->fw->ucode_capa,
+			IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT))
+		wiphy_ext_feature_set(hw->wiphy,
+				      NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT);
+
 	ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
 	hw->wiphy->features |=
 		NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |

drivers/net/wireless/intel/iwlwifi/mvm/mld-key.c

@@ -104,6 +104,9 @@ u32 iwl_mvm_get_sec_flags(struct iwl_mvm *mvm,
 	     (keyconf->keyidx == 4 || keyconf->keyidx == 5)))
 		flags |= IWL_SEC_KEY_FLAG_MFP;
 
+	if (keyconf->flags & IEEE80211_KEY_FLAG_SPP_AMSDU)
+		flags |= IWL_SEC_KEY_FLAG_SPP_AMSDU;
+
 	return flags;
 }
 

drivers/net/wireless/intel/iwlwifi/mvm/sta.c

@@ -3559,6 +3559,9 @@ static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm,
 	key_flags = cpu_to_le16(keyidx);
 	key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP);
 
+	if (key->flags & IEEE80211_KEY_FLAG_SPP_AMSDU)
+		key_flags |= cpu_to_le16(STA_KEY_FLG_AMSDU_SPP);
+
 	switch (key->cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
 		key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP);