wifi: iwlwifi: support link command version 2

In version 2, listen_lmac becomes reserved.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240201155157.df1890aba2fd.Icad9ba10f8bab770adc6a559b2c7bff5cccbffe9@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h

@@ -446,6 +446,7 @@ enum iwl_link_ctx_flags {
  * @listen_lmac: indicates whether the link should be allocated on the Listen
  *	Lmac or on the Main Lmac. Cannot be changed on an active Link.
  *	Relevant only for eSR.
+ * @reserved1: in version 2, listen_lmac became reserved
  * @cck_rates: basic rates available for CCK
  * @ofdm_rates: basic rates available for OFDM
  * @cck_short_preamble: 1 for enabling short preamble, 0 otherwise
@@ -471,10 +472,10 @@ enum iwl_link_ctx_flags {
  * @bssid_index: index of the associated VAP
  * @bss_color: 11ax AP ID that is used in the HE SIG-A to mark inter BSS frame
  * @spec_link_id: link_id as the AP knows it
- * @reserved: alignment
+ * @reserved2: alignment
  * @ibss_bssid_addr: bssid for ibss
  * @reserved_for_ibss_bssid_addr: reserved
- * @reserved1: reserved for future use
+ * @reserved3: reserved for future use
  */
 struct iwl_link_config_cmd {
 	__le32 action;
@@ -485,7 +486,10 @@ struct iwl_link_config_cmd {
 	__le16 reserved_for_local_link_addr;
 	__le32 modify_mask;
 	__le32 active;
-	__le32 listen_lmac;
+	union {
+		__le32 listen_lmac;
+		__le32 reserved1;
+	};
 	__le32 cck_rates;
 	__le32 ofdm_rates;
 	__le32 cck_short_preamble;
@@ -511,11 +515,13 @@ struct iwl_link_config_cmd {
 	u8 bssid_index;
 	u8 bss_color;
 	u8 spec_link_id;
-	u8 reserved;
+	u8 reserved2;
 	u8 ibss_bssid_addr[6];
 	__le16 reserved_for_ibss_bssid_addr;
-	__le32 reserved1[8];
-} __packed; /* LINK_CONTEXT_CONFIG_CMD_API_S_VER_1 */
+	__le32 reserved3[8];
+} __packed; /* LINK_CONTEXT_CONFIG_CMD_API_S_VER_1 and
+	     * LINK_CONTEXT_CONFIG_CMD_API_S_VER_2
+	     */
 
 /* Currently FW supports link ids in the range 0-3 and can have
  * at most two active links for each vif.

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

@@ -53,6 +53,8 @@ int iwl_mvm_add_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	unsigned int link_id = link_conf->link_id;
 	struct iwl_mvm_vif_link_info *link_info = mvmvif->link[link_id];
 	struct iwl_link_config_cmd cmd = {};
+	unsigned int cmd_id = WIDE_ID(MAC_CONF_GROUP, LINK_CONFIG_CMD);
+	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1);
 
 	if (WARN_ON_ONCE(!link_info))
 		return -EINVAL;
@@ -84,7 +86,8 @@ int iwl_mvm_add_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (vif->type == NL80211_IFTYPE_ADHOC && link_conf->bssid)
 		memcpy(cmd.ibss_bssid_addr, link_conf->bssid, ETH_ALEN);
 
-	cmd.listen_lmac = cpu_to_le32(link_info->listen_lmac);
+	if (cmd_ver < 2)
+		cmd.listen_lmac = cpu_to_le32(link_info->listen_lmac);
 
 	return iwl_mvm_link_cmd_send(mvm, &cmd, FW_CTXT_ACTION_ADD);
 }
@@ -100,6 +103,8 @@ int iwl_mvm_link_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	struct iwl_link_config_cmd cmd = {};
 	u32 ht_flag, flags = 0, flags_mask = 0;
 	int ret;
+	unsigned int cmd_id = WIDE_ID(MAC_CONF_GROUP, LINK_CONFIG_CMD);
+	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1);
 
 	if (WARN_ON_ONCE(!link_info ||
 			 link_info->fw_link_id == IWL_MVM_FW_LINK_ID_INVALID))
@@ -224,7 +229,8 @@ int iwl_mvm_link_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	cmd.flags = cpu_to_le32(flags);
 	cmd.flags_mask = cpu_to_le32(flags_mask);
 	cmd.spec_link_id = link_conf->link_id;
-	cmd.listen_lmac = cpu_to_le32(link_info->listen_lmac);
+	if (cmd_ver < 2)
+		cmd.listen_lmac = cpu_to_le32(link_info->listen_lmac);
 
 	ret = iwl_mvm_link_cmd_send(mvm, &cmd, FW_CTXT_ACTION_MODIFY);
 	if (!ret && (changes & LINK_CONTEXT_MODIFY_ACTIVE))