iwlwifi: mvm: add support for range request command ver 11

Version 11 of the range request command adds support for setting
the PN for secure ranging. For now, this is not yet supported.

The same functions that are used for version 9 and 10 are also
used for version 11 as the common part is the same.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200928121852.6f9ed4140e8c.I046e0d9f6dfaafda9794e5eb2ee1f02fcad2851a@changeidSigned-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c

@@ -166,7 +166,7 @@ static void iwl_mvm_ftm_cmd_v5(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 static void iwl_mvm_ftm_cmd_common(struct iwl_mvm *mvm,
 				   struct ieee80211_vif *vif,
-				   struct iwl_tof_range_req_cmd *cmd,
+				   struct iwl_tof_range_req_cmd_v9 *cmd,
 				   struct cfg80211_pmsr_request *req)
 {
 	int i;
@@ -335,7 +335,7 @@ iwl_mvm_ftm_put_target_v2(struct iwl_mvm *mvm,
 static void
 iwl_mvm_ftm_put_target_common(struct iwl_mvm *mvm,
 			      struct cfg80211_pmsr_request_peer *peer,
-			      struct iwl_tof_range_req_ap_entry *target)
+			      struct iwl_tof_range_req_ap_entry_v6 *target)
 {
 	memcpy(target->bssid, peer->addr, ETH_ALEN);
 	target->burst_period =
@@ -411,7 +411,7 @@ iwl_mvm_ftm_put_target_v4(struct iwl_mvm *mvm,
 static int
 iwl_mvm_ftm_put_target(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		       struct cfg80211_pmsr_request_peer *peer,
-		       struct iwl_tof_range_req_ap_entry *target)
+		       struct iwl_tof_range_req_ap_entry_v6 *target)
 {
 	int ret;
 
@@ -421,7 +421,7 @@ iwl_mvm_ftm_put_target(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (ret)
 		return ret;
 
-	iwl_mvm_ftm_put_target_common(mvm, peer, (void *)target);
+	iwl_mvm_ftm_put_target_common(mvm, peer, target);
 
 	if (vif->bss_conf.assoc &&
 	    !memcmp(peer->addr, vif->bss_conf.bssid, ETH_ALEN)) {
@@ -539,7 +539,7 @@ static int iwl_mvm_ftm_start_v8(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 static int iwl_mvm_ftm_start_v9(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 				struct cfg80211_pmsr_request *req)
 {
-	struct iwl_tof_range_req_cmd cmd;
+	struct iwl_tof_range_req_cmd_v9 cmd;
 	struct iwl_host_cmd hcmd = {
 		.id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
 		.dataflags[0] = IWL_HCMD_DFL_DUP,
@@ -553,7 +553,7 @@ static int iwl_mvm_ftm_start_v9(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	for (i = 0; i < cmd.num_of_ap; i++) {
 		struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
-		struct iwl_tof_range_req_ap_entry *target = &cmd.ap[i];
+		struct iwl_tof_range_req_ap_entry_v6 *target = &cmd.ap[i];
 
 		err = iwl_mvm_ftm_put_target(mvm, vif, peer, target);
 		if (err)
@@ -563,6 +563,34 @@ static int iwl_mvm_ftm_start_v9(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
 }
 
+static int iwl_mvm_ftm_start_v11(struct iwl_mvm *mvm,
+				 struct ieee80211_vif *vif,
+				 struct cfg80211_pmsr_request *req)
+{
+	struct iwl_tof_range_req_cmd_v11 cmd;
+	struct iwl_host_cmd hcmd = {
+		.id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
+		.dataflags[0] = IWL_HCMD_DFL_DUP,
+		.data[0] = &cmd,
+		.len[0] = sizeof(cmd),
+	};
+	u8 i;
+	int err;
+
+	iwl_mvm_ftm_cmd_common(mvm, vif, (void *)&cmd, req);
+
+	for (i = 0; i < cmd.num_of_ap; i++) {
+		struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
+		struct iwl_tof_range_req_ap_entry_v7 *target = &cmd.ap[i];
+
+		err = iwl_mvm_ftm_put_target(mvm, vif, peer, (void *)target);
+		if (err)
+			return err;
+	}
+
+	return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
+}
+
 int iwl_mvm_ftm_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		      struct cfg80211_pmsr_request *req)
 {
@@ -581,6 +609,9 @@ int iwl_mvm_ftm_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 						   IWL_FW_CMD_VER_UNKNOWN);
 
 		switch (cmd_ver) {
+		case 11:
+			err = iwl_mvm_ftm_start_v11(mvm, vif, req);
+			break;
 		case 9:
 		case 10:
 			err = iwl_mvm_ftm_start_v9(mvm, vif, req);
@@ -721,7 +752,8 @@ void iwl_mvm_ftm_range_resp(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
 	struct iwl_tof_range_rsp_ntfy_v5 *fw_resp_v5 = (void *)pkt->data;
 	struct iwl_tof_range_rsp_ntfy_v6 *fw_resp_v6 = (void *)pkt->data;
-	struct iwl_tof_range_rsp_ntfy *fw_resp = (void *)pkt->data;
+	struct iwl_tof_range_rsp_ntfy_v7 *fw_resp_v7 = (void *)pkt->data;
+	struct iwl_tof_range_rsp_ntfy_v8 *fw_resp_v8 = (void *)pkt->data;
 	int i;
 	bool new_api = fw_has_api(&mvm->fw->ucode_capa,
 				  IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ);
@@ -734,12 +766,12 @@ void iwl_mvm_ftm_range_resp(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
 	}
 
 	if (new_api) {
-		if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp->request_id,
-						 fw_resp->num_of_aps))
+		if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp_v8->request_id,
+						 fw_resp_v8->num_of_aps))
 			return;
 
-		num_of_aps = fw_resp->num_of_aps;
-		last_in_batch = fw_resp->last_report;
+		num_of_aps = fw_resp_v8->num_of_aps;
+		last_in_batch = fw_resp_v8->last_report;
 	} else {
 		if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp_v5->request_id,
 						 fw_resp_v5->num_of_aps))
@@ -755,17 +787,19 @@ void iwl_mvm_ftm_range_resp(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
 
 	for (i = 0; i < num_of_aps && i < IWL_MVM_TOF_MAX_APS; i++) {
 		struct cfg80211_pmsr_result result = {};
-		struct iwl_tof_range_rsp_ap_entry_ntfy *fw_ap;
+		struct iwl_tof_range_rsp_ap_entry_ntfy_v6 *fw_ap;
 		int peer_idx;
 
 		if (new_api) {
-			if (fw_has_api(&mvm->fw->ucode_capa,
-				       IWL_UCODE_TLV_API_FTM_RTT_ACCURACY))
-				fw_ap = &fw_resp->ap[i];
+			if (mvm->cmd_ver.range_resp == 8)
+				fw_ap = &fw_resp_v8->ap[i];
+			else if (fw_has_api(&mvm->fw->ucode_capa,
+					    IWL_UCODE_TLV_API_FTM_RTT_ACCURACY))
+				fw_ap = (void *)&fw_resp_v7->ap[i];
 			else
 				fw_ap = (void *)&fw_resp_v6->ap[i];
 
-			result.final = fw_resp->ap[i].last_burst;
+			result.final = fw_ap->last_burst;
 			result.ap_tsf = le32_to_cpu(fw_ap->start_tsf);
 			result.ap_tsf_valid = 1;
 		} else {

drivers/net/wireless/intel/iwlwifi/mvm/mvm.h

@@ -1113,6 +1113,7 @@ struct iwl_mvm {
 
 	struct {
 		u8 d0i3_resp;
+		u8 range_resp;
 	} cmd_ver;
 
 	struct ieee80211_vif *nan_vif;

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

@@ -725,6 +725,13 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1))
 		goto out_free;
 
+	mvm->cmd_ver.range_resp =
+		iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
+					TOF_RANGE_RESPONSE_NOTIF, 5);
+	/* we only support up to version 8 */
+	if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 8))
+		goto out_free;
+
 	/*
 	 * Populate the state variables that the transport layer needs
 	 * to know about.