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From:   gregory.greenman@intel.com
To:     johannes@sipsolutions.net
Cc:     linux-wireless@vger.kernel.org,
        Johannes Berg <johannes.berg@intel.com>,
        Gregory Greenman <gregory.greenman@intel.com>
Subject: [PATCH 05/15] wifi: iwlwifi: mvm: properly implement HE AP support
Date:   Sun, 16 Apr 2023 15:47:29 +0300
Message-Id: <20230416154301.34dbfefe2a49.I0e39cd35dbe03ff9209b26733746479eae1c8966@changeid>
In-Reply-To: <20230416124739.1260800-1-gregory.greenman@intel.com>
References: <20230416124739.1260800-1-gregory.greenman@intel.com>
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From: Johannes Berg <johannes.berg@intel.com>

The firmware split the HE support field into HE and "pseudo HE",
the latter is really for AP and doesn't implement trigger frame
handling for example.

Use the new field for AP mode.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
---
 .../net/wireless/intel/iwlwifi/fw/api/mac-cfg.h    |  4 +++-
 drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c   | 14 ++++++++++++--
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h b/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h
index e236d1b0aae2..0bafa3e21cb5 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h
@@ -278,6 +278,7 @@ enum iwl_mac_config_filter_flags {
  * @reserved_for_local_mld_addr: reserved
  * @filter_flags: combination of &enum iwl_mac_config_filter_flags
  * @he_support: does this MAC support HE
+ * @he_ap_support: HE AP enabled, "pseudo HE", no trigger frame handling
  * @eht_support: does this MAC support EHT. Requires he_support
  * @nic_not_ack_enabled: mark that the NIC doesn't support receiving
  *	ACK-enabled AGG, (i.e. both BACK and non-BACK frames in single AGG).
@@ -296,7 +297,8 @@ struct iwl_mac_config_cmd {
 	u8 local_mld_addr[6];
 	__le16 reserved_for_local_mld_addr;
 	__le32 filter_flags;
-	__le32 he_support;
+	__le16 he_support;
+	__le16 he_ap_support;
 	__le32 eht_support;
 	__le32 nic_not_ack_enabled;
 	/* MAC_CONTEXT_CONFIG_SPECIFIC_DATA_API_U_VER_1 */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c
index ab0ba85936b4..d73ab1712e0e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mld-mac.c
@@ -4,6 +4,16 @@
  */
 #include "mvm.h"
 
+static void iwl_mvm_mld_set_he_support(struct iwl_mvm *mvm,
+				       struct ieee80211_vif *vif,
+				       struct iwl_mac_config_cmd *cmd)
+{
+	if (vif->type == NL80211_IFTYPE_AP)
+		cmd->he_ap_support = cpu_to_le16(1);
+	else
+		cmd->he_support = cpu_to_le16(1);
+}
+
 static void iwl_mvm_mld_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
 					    struct ieee80211_vif *vif,
 					    struct iwl_mac_config_cmd *cmd,
@@ -41,7 +51,7 @@ static void iwl_mvm_mld_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
 	 * and enable both when we have MLO.
 	 */
 	if (vif->valid_links) {
-		cmd->he_support = cpu_to_le32(1);
+		iwl_mvm_mld_set_he_support(mvm, vif, cmd);
 		cmd->eht_support = cpu_to_le32(1);
 		return;
 	}
@@ -53,7 +63,7 @@ static void iwl_mvm_mld_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
 			continue;
 
 		if (link_conf->he_support)
-			cmd->he_support = cpu_to_le32(1);
+			iwl_mvm_mld_set_he_support(mvm, vif, cmd);
 
 		/* it's not reasonable to have EHT without HE and FW API doesn't
 		 * support it. Ignore EHT in this case.
-- 
2.38.1