wifi: iwlwifi: make no_160 more generic

We'll have devices that are EHT capable but don't support 320 MHz and
those devices look like the 320 MHz capable devices, but have distinct
subsystem ID.
We already had the same type of differentiation for HE devices that
support 160 MHz or not.
Enhance that mechanism and now the _IWL_DEV_INFO macro gets an
indication whether the bandwidth should be limited for that specific
device.
The subsystem ID gives a binary answer about the bandwidth limitation
and iwl_pci_find_dev_info() compares this to the list of _IWL_DEV_INFO
entries.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205145347.1ba406c538a5.I6e24123f60a764aedfeaaac8768c26e136c320cf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/iwl-config.h

@@ -2,7 +2,7 @@
 /*
  * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
  * Copyright (C) 2016-2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2024 Intel Corporation
+ * Copyright (C) 2018-2025 Intel Corporation
  */
 #ifndef __IWL_CONFIG_H__
 #define __IWL_CONFIG_H__
@@ -451,11 +451,8 @@ struct iwl_cfg {
 #define IWL_CFG_RF_ID_HR		0x7
 #define IWL_CFG_RF_ID_HR1		0x4
 
-#define IWL_CFG_NO_160			0x1
-#define IWL_CFG_160			0x0
-
-#define IWL_CFG_NO_320			0x1
-#define IWL_CFG_320			0x0
+#define IWL_CFG_BW_NO_LIM		(U16_MAX - 1)
+#define IWL_CFG_BW_ANY			U16_MAX
 
 #define IWL_CFG_CORES_BT		0x0
 #define IWL_CFG_CORES_BT_GNSS		0x5
@@ -467,18 +464,18 @@ struct iwl_cfg {
 #define IWL_CFG_IS_JACKET		0x1
 
 #define IWL_SUBDEVICE_RF_ID(subdevice)	((u16)((subdevice) & 0x00F0) >> 4)
-#define IWL_SUBDEVICE_NO_160(subdevice)	((u16)((subdevice) & 0x0200) >> 9)
+#define IWL_SUBDEVICE_BW_LIM(subdevice)	((u16)((subdevice) & 0x0200) >> 9)
 #define IWL_SUBDEVICE_CORES(subdevice)	((u16)((subdevice) & 0x1C00) >> 10)
 
 struct iwl_dev_info {
 	u16 device;
 	u16 subdevice;
 	u16 mac_type;
 	u16 rf_type;
+	u16 bw_limit;
 	u8 mac_step;
 	u8 rf_step;
 	u8 rf_id;
-	u8 no_160;
 	u8 cores;
 	u8 cdb;
 	u8 jacket;
@@ -492,7 +489,7 @@ extern const unsigned int iwl_dev_info_table_size;
 const struct iwl_dev_info *
 iwl_pci_find_dev_info(u16 device, u16 subsystem_device,
 		      u16 mac_type, u8 mac_step, u16 rf_type, u8 cdb,
-		      u8 jacket, u8 rf_id, u8 no_160, u8 cores, u8 rf_step);
+		      u8 jacket, u8 rf_id, u8 bw_limit, u8 cores, u8 rf_step);
 extern const struct pci_device_id iwl_hw_card_ids[];
 #endif
 

drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
 /*
- * Copyright (C) 2005-2014, 2018-2023 Intel Corporation
+ * Copyright (C) 2005-2014, 2018-2023, 2025 Intel Corporation
  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
  * Copyright (C) 2016-2017 Intel Deutschland GmbH
  */
@@ -1094,7 +1094,7 @@ iwl_nvm_fixup_sband_iftd(struct iwl_trans *trans,
 		iftype_data->eht_cap.eht_mcs_nss_supp.bw._320.rx_tx_mcs13_max_nss = 0;
 	}
 
-	if (trans->no_160)
+	if (trans->bw_limit < 160)
 		iftype_data->he_cap.he_cap_elem.phy_cap_info[0] &=
 			~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
 

drivers/net/wireless/intel/iwlwifi/iwl-trans.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2005-2014, 2018-2023 Intel Corporation
+ * Copyright (C) 2005-2014, 2018-2023, 2025 Intel Corporation
  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
  * Copyright (C) 2016-2017 Intel Deutschland GmbH
  */
@@ -876,7 +876,7 @@ struct iwl_txq {
  *	only valid for discrete (not integrated) NICs
  * @invalid_tx_cmd: invalid TX command buffer
  * @reduced_cap_sku: reduced capability supported SKU
- * @no_160: device not supporting 160 MHz
+ * @bw_limit: the max bandwidth
  * @step_urm: STEP is in URM, no support for MCS>9 in 320 MHz
  * @restart: restart worker data
  * @restart.wk: restart worker
@@ -910,7 +910,8 @@ struct iwl_trans {
 	char hw_id_str[52];
 	u32 sku_id[3];
 	bool reduced_cap_sku;
-	u8 no_160:1, step_urm:1;
+	u16 bw_limit;
+	bool step_urm;
 
 	u8 dsbr_urm_fw_dependent:1,
 	   dsbr_urm_permanent:1;