ath10k: disable interface pause wow config for integrated chipset

wow pause iface config controls the PCI D0/D3-WOW cases for pcie
bus state. Firmware does not expects WOW_IFACE_PAUSE_ENABLED config
for bus/link that cannot be suspended ex:snoc and does not trigger
common subsystem shutdown.
Disable interface pause wow config for integrated chipset(WCN3990)
for correct WOW configuration in the firmware.

Testing:
    Tested on WCN3990 HW.
    Tested FW: WLAN.HL.2.0-01192-QCAHLSWMTPLZ-1.
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/ath/ath10k/core.c

@@ -2994,8 +2994,9 @@ static void ath10k_core_register_work(struct work_struct *work)
 int ath10k_core_register(struct ath10k *ar,
 			 const struct ath10k_bus_params *bus_params)
 {
-	ar->chip_id = bus_params->chip_id;
-	ar->dev_type = bus_params->dev_type;
+	ar->bus_param.chip_id = bus_params->chip_id;
+	ar->bus_param.dev_type = bus_params->dev_type;
+	ar->bus_param.link_can_suspend = bus_params->link_can_suspend;
 	queue_work(ar->workqueue, &ar->register_work);
 
 	return 0;

drivers/net/wireless/ath/ath10k/core.h

@@ -922,6 +922,7 @@ enum ath10k_dev_type {
 struct ath10k_bus_params {
 	u32 chip_id;
 	enum ath10k_dev_type dev_type;
+	bool link_can_suspend;
 };
 
 struct ath10k {
@@ -1191,6 +1192,7 @@ struct ath10k {
 	enum ath10k_radar_confirmation_state radar_conf_state;
 	struct ath10k_radar_found_info last_radar_info;
 	struct work_struct radar_confirmation_work;
+	struct ath10k_bus_params bus_param;
 
 	/* must be last */
 	u8 drv_priv[0] __aligned(sizeof(void *));

drivers/net/wireless/ath/ath10k/coredump.c

@@ -1167,7 +1167,7 @@ static struct ath10k_dump_file_data *ath10k_coredump_build(struct ath10k *ar)
 	dump_data->version = cpu_to_le32(ATH10K_FW_CRASH_DUMP_VERSION);
 
 	guid_copy(&dump_data->guid, &crash_data->guid);
-	dump_data->chip_id = cpu_to_le32(ar->chip_id);
+	dump_data->chip_id = cpu_to_le32(ar->bus_param.chip_id);
 	dump_data->bus_type = cpu_to_le32(0);
 	dump_data->target_version = cpu_to_le32(ar->target_version);
 	dump_data->fw_version_major = cpu_to_le32(ar->fw_version_major);

drivers/net/wireless/ath/ath10k/debug.c

@@ -58,7 +58,7 @@ void ath10k_debug_print_hwfw_info(struct ath10k *ar)
 	ath10k_info(ar, "%s target 0x%08x chip_id 0x%08x sub %04x:%04x",
 		    ar->hw_params.name,
 		    ar->target_version,
-		    ar->chip_id,
+		    ar->bus_param.chip_id,
 		    ar->id.subsystem_vendor, ar->id.subsystem_device);
 
 	ath10k_info(ar, "kconfig debug %d debugfs %d tracing %d dfs %d testmode %d\n",
@@ -625,7 +625,7 @@ static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
 	size_t len;
 	char buf[50];
 
-	len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
+	len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->bus_param.chip_id);
 
 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 }

drivers/net/wireless/ath/ath10k/htc.c

@@ -53,7 +53,7 @@ static inline void ath10k_htc_restore_tx_skb(struct ath10k_htc *htc,
 {
 	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
 
-	if (htc->ar->dev_type != ATH10K_DEV_TYPE_HL)
+	if (htc->ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
 		dma_unmap_single(htc->ar->dev, skb_cb->paddr, skb->len, DMA_TO_DEVICE);
 	skb_pull(skb, sizeof(struct ath10k_htc_hdr));
 }
@@ -138,7 +138,7 @@ int ath10k_htc_send(struct ath10k_htc *htc,
 	ath10k_htc_prepare_tx_skb(ep, skb);
 
 	skb_cb->eid = eid;
-	if (ar->dev_type != ATH10K_DEV_TYPE_HL) {
+	if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL) {
 		skb_cb->paddr = dma_map_single(dev, skb->data, skb->len,
 					       DMA_TO_DEVICE);
 		ret = dma_mapping_error(dev, skb_cb->paddr);
@@ -161,7 +161,7 @@ int ath10k_htc_send(struct ath10k_htc *htc,
 	return 0;
 
 err_unmap:
-	if (ar->dev_type != ATH10K_DEV_TYPE_HL)
+	if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
 		dma_unmap_single(dev, skb_cb->paddr, skb->len, DMA_TO_DEVICE);
 err_credits:
 	if (ep->tx_credit_flow_enabled) {

drivers/net/wireless/ath/ath10k/htt_rx.c

@@ -265,7 +265,7 @@ int ath10k_htt_rx_ring_refill(struct ath10k *ar)
 	struct ath10k_htt *htt = &ar->htt;
 	int ret;
 
-	if (ar->dev_type == ATH10K_DEV_TYPE_HL)
+	if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
 		return 0;
 
 	spin_lock_bh(&htt->rx_ring.lock);
@@ -282,7 +282,7 @@ int ath10k_htt_rx_ring_refill(struct ath10k *ar)
 
 void ath10k_htt_rx_free(struct ath10k_htt *htt)
 {
-	if (htt->ar->dev_type == ATH10K_DEV_TYPE_HL)
+	if (htt->ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
 		return;
 
 	del_timer_sync(&htt->rx_ring.refill_retry_timer);
@@ -760,7 +760,7 @@ int ath10k_htt_rx_alloc(struct ath10k_htt *htt)
 	size_t size;
 	struct timer_list *timer = &htt->rx_ring.refill_retry_timer;
 
-	if (ar->dev_type == ATH10K_DEV_TYPE_HL)
+	if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
 		return 0;
 
 	htt->rx_confused = false;
@@ -3237,7 +3237,7 @@ bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 		break;
 	}
 	case HTT_T2H_MSG_TYPE_RX_IND:
-		if (ar->dev_type == ATH10K_DEV_TYPE_HL)
+		if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
 			return ath10k_htt_rx_proc_rx_ind_hl(htt,
 							    &resp->rx_ind_hl,
 							    skb);
@@ -3533,7 +3533,7 @@ void ath10k_htt_set_rx_ops(struct ath10k_htt *htt)
 {
 	struct ath10k *ar = htt->ar;
 
-	if (ar->dev_type == ATH10K_DEV_TYPE_HL)
+	if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
 		htt->rx_ops = &htt_rx_ops_hl;
 	else if (ar->hw_params.target_64bit)
 		htt->rx_ops = &htt_rx_ops_64;

drivers/net/wireless/ath/ath10k/htt_tx.c

@@ -495,7 +495,7 @@ int ath10k_htt_tx_start(struct ath10k_htt *htt)
 	if (htt->tx_mem_allocated)
 		return 0;
 
-	if (ar->dev_type == ATH10K_DEV_TYPE_HL)
+	if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
 		return 0;
 
 	ret = ath10k_htt_tx_alloc_buf(htt);
@@ -1224,7 +1224,7 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	return 0;
 
 err_unmap_msdu:
-	if (ar->dev_type != ATH10K_DEV_TYPE_HL)
+	if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
 		dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
 err_free_txdesc:
 	dev_kfree_skb_any(txdesc);
@@ -1763,7 +1763,7 @@ void ath10k_htt_set_tx_ops(struct ath10k_htt *htt)
 {
 	struct ath10k *ar = htt->ar;
 
-	if (ar->dev_type == ATH10K_DEV_TYPE_HL)
+	if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
 		htt->tx_ops = &htt_tx_ops_hl;
 	else if (ar->hw_params.target_64bit)
 		htt->tx_ops = &htt_tx_ops_64;

drivers/net/wireless/ath/ath10k/pci.c

@@ -2283,7 +2283,7 @@ static int ath10k_pci_get_num_banks(struct ath10k *ar)
 		return 1;
 	case QCA6164_2_1_DEVICE_ID:
 	case QCA6174_2_1_DEVICE_ID:
-		switch (MS(ar->chip_id, SOC_CHIP_ID_REV)) {
+		switch (MS(ar->bus_param.chip_id, SOC_CHIP_ID_REV)) {
 		case QCA6174_HW_1_0_CHIP_ID_REV:
 		case QCA6174_HW_1_1_CHIP_ID_REV:
 		case QCA6174_HW_2_1_CHIP_ID_REV:
@@ -3636,6 +3636,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	}
 
 	bus_params.dev_type = ATH10K_DEV_TYPE_LL;
+	bus_params.link_can_suspend = true;
 	bus_params.chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
 	if (bus_params.chip_id == 0xffffffff) {
 		ath10k_err(ar, "failed to get chip id\n");

drivers/net/wireless/ath/ath10k/txrx.c

@@ -95,7 +95,7 @@ int ath10k_txrx_tx_unref(struct ath10k_htt *htt,
 		wake_up(&htt->empty_tx_wq);
 	spin_unlock_bh(&htt->tx_lock);
 
-	if (ar->dev_type != ATH10K_DEV_TYPE_HL)
+	if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
 		dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
 
 	ath10k_report_offchan_tx(htt->ar, msdu);

drivers/net/wireless/ath/ath10k/wmi-tlv.c

@@ -3323,6 +3323,8 @@ ath10k_wmi_tlv_op_gen_wow_enable(struct ath10k *ar)
 	cmd = (void *)tlv->value;
 
 	cmd->enable = __cpu_to_le32(1);
+	if (!ar->bus_param.link_can_suspend)
+		cmd->pause_iface_config = __cpu_to_le32(WOW_IFACE_PAUSE_DISABLED);
 
 	ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi tlv wow enable\n");
 	return skb;

drivers/net/wireless/ath/ath10k/wmi-tlv.h

@@ -2001,8 +2001,15 @@ struct wmi_tlv_set_quiet_cmd {
 	__le32 enabled;
 } __packed;
 
+enum wmi_tlv_wow_interface_cfg {
+	WOW_IFACE_PAUSE_ENABLED,
+	WOW_IFACE_PAUSE_DISABLED
+};
+
 struct wmi_tlv_wow_enable_cmd {
 	__le32 enable;
+	__le32 pause_iface_config;
+	__le32 flags;
 } __packed;
 
 struct wmi_tlv_wow_host_wakeup_ind {