wifi: iwlwifi: fw: api: update link context API version

The flags_mask field is becoming reserved, and a new bandwidth
request is being added for RX OMI purposes. Support the new API
version as preparation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241008072037.437c6573df3c.I03612cb6cf47b12038c1db11b95a554cdea714e9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

2 files changed, 29 insertions, 6 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 c46e24fc6a1e..b23d5fc4bbe6 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/mac-cfg.h
@@ -382,6 +382,8 @@ struct iwl_mac_config_cmd {
  * @LINK_CONTEXT_MODIFY_EHT_PARAMS: covers iwl_link_ctx_cfg_cmd::puncture_mask.
  *	This flag can be set only if the MAC that this link relates to has
  *	eht_support set to true. No longer used since _VER_3 of this command.
+ * @LINK_CONTEXT_MODIFY_BANDWIDTH: Covers iwl_link_ctx_cfg_cmd::modify_bandwidth.
+ *	Request RX OMI to the AP to modify bandwidth of this link.
  * @LINK_CONTEXT_MODIFY_ALL: set all above flags
  */
 enum iwl_link_ctx_modify_flags {
@@ -393,6 +395,7 @@ enum iwl_link_ctx_modify_flags {
 	LINK_CONTEXT_MODIFY_HE_PARAMS		= BIT(5),
 	LINK_CONTEXT_MODIFY_BSS_COLOR_DISABLE	= BIT(6),
 	LINK_CONTEXT_MODIFY_EHT_PARAMS		= BIT(7),
+	LINK_CONTEXT_MODIFY_BANDWIDTH		= BIT(8),
 	LINK_CONTEXT_MODIFY_ALL			= 0xff,
 }; /* LINK_CONTEXT_MODIFY_MASK_E_VER_1 */
 
@@ -434,6 +437,22 @@ enum iwl_link_ctx_flags {
 }; /* LINK_CONTEXT_FLAG_E_VER_1 */
 
 /**
+ * enum iwl_link_modify_bandwidth - link modify (RX OMI) bandwidth
+ * @IWL_LINK_MODIFY_BW_20: request 20 MHz
+ * @IWL_LINK_MODIFY_BW_40: request 40 MHz
+ * @IWL_LINK_MODIFY_BW_80: request 80 MHz
+ * @IWL_LINK_MODIFY_BW_160: request 160 MHz
+ * @IWL_LINK_MODIFY_BW_320: request 320 MHz
+ */
+enum iwl_link_modify_bandwidth {
+	IWL_LINK_MODIFY_BW_20,
+	IWL_LINK_MODIFY_BW_40,
+	IWL_LINK_MODIFY_BW_80,
+	IWL_LINK_MODIFY_BW_160,
+	IWL_LINK_MODIFY_BW_320,
+};
+
+/**
  * struct iwl_link_config_cmd - command structure to configure the LINK context
  *	in MLD API
  * ( LINK_CONFIG_CMD =0x9 )
@@ -457,6 +476,8 @@ enum iwl_link_ctx_flags {
  * @block_tx: tell the firmware that this link can't Tx. This should be used
  *	only when a link is de-activated because of CSA with mode = 1.
  *	Available since version 5.
+ * @modify_bandwidth: bandwidth request value for RX OMI (see also
+ *	%LINK_CONTEXT_MODIFY_BANDWIDTH), from &enum iwl_link_modify_bandwidth.
  * @reserved1: in version 2, listen_lmac became reserved
  * @cck_rates: basic rates available for CCK
  * @ofdm_rates: basic rates available for OFDM
@@ -500,10 +521,11 @@ struct iwl_link_config_cmd {
 	__le32 modify_mask;
 	__le32 active;
 	union {
-		__le32 listen_lmac;
+		__le32 listen_lmac; /* only _VER_1 */
 		struct {
-			u8 block_tx;
-			u8 reserved1[3];
+			u8 block_tx; /* since _VER_5 */
+			u8 modify_bandwidth; /* since _VER_6 */
+			u8 reserved1[2];
 		};
 	};
 	__le32 cck_rates;
@@ -524,7 +546,7 @@ struct iwl_link_config_cmd {
 	__le16 puncture_mask; /* removed in _VER_3 */
 	__le16 frame_time_rts_th;
 	__le32 flags;
-	__le32 flags_mask;
+	__le32 flags_mask; /* removed in _VER_6 */
 	/* The below fields are for multi-bssid */
 	u8 ref_bssid_addr[6];
 	__le16 reserved_for_ref_bssid_addr;
@@ -535,7 +557,7 @@ struct iwl_link_config_cmd {
 	u8 ibss_bssid_addr[6];
 	__le16 reserved_for_ibss_bssid_addr;
 	__le32 reserved3[8];
-} __packed; /* LINK_CONTEXT_CONFIG_CMD_API_S_VER_1, _VER_2, _VER_3, _VER_4, _VER_5 */
+} __packed; /* LINK_CONTEXT_CONFIG_CMD_API_S_VER_1, _VER_2, _VER_3, _VER_4, _VER_5, _VER_6 */
 
 /* Currently FW supports link ids in the range 0-3 and can have
  * at most two active links for each vif.
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/link.c b/drivers/net/wireless/intel/iwlwifi/mvm/link.c
index 19ecd215f1dc..628baf67b208 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/link.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/link.c
@@ -361,7 +361,8 @@ int iwl_mvm_link_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 send_cmd:
 	cmd.modify_mask = cpu_to_le32(changes);
 	cmd.flags = cpu_to_le32(flags);
-	cmd.flags_mask = cpu_to_le32(flags_mask);
+	if (cmd_ver < 6)
+		cmd.flags_mask = cpu_to_le32(flags_mask);
 	cmd.spec_link_id = link_conf->link_id;
 	if (cmd_ver < 2)
 		cmd.listen_lmac = cpu_to_le32(link_info->listen_lmac);