iwlwifi: mvm: add high temperature SKU thermal throttling parameters

When the NIC is expected to operate in high temperature,
it is advisable to put more aggresive thermal throttling
parameters, in order to prevent CT-kill.

Signed-off-by: eytan lifshitz <eytan.lifshitz@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/iwlwifi/iwl-7000.c

@@ -127,6 +127,16 @@ const struct iwl_cfg iwl7260_2ac_cfg = {
 	.nvm_calib_ver = IWL7260_TX_POWER_VERSION,
 };
 
+const struct iwl_cfg iwl7260_2ac_cfg_high_temp = {
+	.name = "Intel(R) Dual Band Wireless AC 7260",
+	.fw_name_pre = IWL7260_FW_PRE,
+	IWL_DEVICE_7000,
+	.ht_params = &iwl7000_ht_params,
+	.nvm_ver = IWL7260_NVM_VERSION,
+	.nvm_calib_ver = IWL7260_TX_POWER_VERSION,
+	.high_temp = true,
+};
+
 const struct iwl_cfg iwl7260_2n_cfg = {
 	.name = "Intel(R) Dual Band Wireless N 7260",
 	.fw_name_pre = IWL7260_FW_PRE,

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

@@ -206,6 +206,7 @@ struct iwl_eeprom_params {
  * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
  * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
  * @internal_wimax_coex: internal wifi/wimax combo device
+ * @high_temp: Is this NIC is designated to be in high temperature.
  *
  * We enable the driver to be backward compatible wrt. hardware features.
  * API differences in uCode shouldn't be handled here but through TLVs
@@ -234,6 +235,7 @@ struct iwl_cfg {
 	enum iwl_led_mode led_mode;
 	const bool rx_with_siso_diversity;
 	const bool internal_wimax_coex;
+	bool high_temp;
 };
 
 /*
@@ -284,6 +286,7 @@ extern const struct iwl_cfg iwl135_bgn_cfg;
 #endif /* CONFIG_IWLDVM */
 #if IS_ENABLED(CONFIG_IWLMVM)
 extern const struct iwl_cfg iwl7260_2ac_cfg;
+extern const struct iwl_cfg iwl7260_2ac_cfg_high_temp;
 extern const struct iwl_cfg iwl7260_2n_cfg;
 extern const struct iwl_cfg iwl7260_n_cfg;
 extern const struct iwl_cfg iwl3160_2ac_cfg;

drivers/net/wireless/iwlwifi/mvm/tt.c

@@ -512,12 +512,39 @@ static const struct iwl_tt_params iwl7000_tt_params = {
 	.support_tx_backoff = true,
 };
 
+static const struct iwl_tt_params iwl7000_high_temp_tt_params = {
+	.ct_kill_entry = 118,
+	.ct_kill_exit = 96,
+	.ct_kill_duration = 5,
+	.dynamic_smps_entry = 114,
+	.dynamic_smps_exit = 110,
+	.tx_protection_entry = 114,
+	.tx_protection_exit = 108,
+	.tx_backoff = {
+		{.temperature = 112, .backoff = 300},
+		{.temperature = 113, .backoff = 800},
+		{.temperature = 114, .backoff = 1500},
+		{.temperature = 115, .backoff = 3000},
+		{.temperature = 116, .backoff = 5000},
+		{.temperature = 117, .backoff = 10000},
+	},
+	.support_ct_kill = true,
+	.support_dynamic_smps = true,
+	.support_tx_protection = true,
+	.support_tx_backoff = true,
+};
+
 void iwl_mvm_tt_initialize(struct iwl_mvm *mvm)
 {
 	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;
 
 	IWL_DEBUG_TEMP(mvm, "Initialize Thermal Throttling\n");
-	tt->params = &iwl7000_tt_params;
+
+	if (mvm->cfg->high_temp)
+		tt->params = &iwl7000_high_temp_tt_params;
+	else
+		tt->params = &iwl7000_tt_params;
+
 	tt->throttle = false;
 	INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill);
 }

drivers/net/wireless/iwlwifi/pcie/drv.c

@@ -272,9 +272,9 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 	{IWL_PCI_DEVICE(0x08B1, 0x4462, iwl7260_n_cfg)},
 	{IWL_PCI_DEVICE(0x08B1, 0x4870, iwl7260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x08B1, 0x486E, iwl7260_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x08B1, 0x4A70, iwl7260_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x08B1, 0x4A6E, iwl7260_2ac_cfg)},
-	{IWL_PCI_DEVICE(0x08B1, 0x4A6C, iwl7260_2ac_cfg)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4A70, iwl7260_2ac_cfg_high_temp)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4A6E, iwl7260_2ac_cfg_high_temp)},
+	{IWL_PCI_DEVICE(0x08B1, 0x4A6C, iwl7260_2ac_cfg_high_temp)},
 	{IWL_PCI_DEVICE(0x08B1, 0x4020, iwl7260_2n_cfg)},
 	{IWL_PCI_DEVICE(0x08B2, 0x4220, iwl7260_2n_cfg)},
 	{IWL_PCI_DEVICE(0x08B1, 0x4420, iwl7260_2n_cfg)},