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Commit d15d938f authored by Lin Bai's avatar Lin Bai
Browse files

cnss2: Add CNSS_BUS_EVENT to report bus info 



CNSS_BUS_EVENT type added to report bus related info to
CLD driver.
Currently only PCIe's link down event taken care.

Change-Id: Ia18ce1b9ca8d0641e62271d645f1c87461029a26
Signed-off-by: default avatarLin Bai <lbai@codeaurora.org>
parent 3144c1d4

drivers/net/wireless/cnss2/pci.c

+17 −0
Original line number Diff line number Diff line
@@ -889,6 +889,17 @@ void cnss_pci_allow_l1(struct device *dev) 
}

EXPORT_SYMBOL(cnss_pci_allow_l1);



static void cnss_pci_update_link_event(struct cnss_pci_data *pci_priv,

				       enum cnss_bus_event_type type,

				       void *data)

{

	struct cnss_bus_event bus_event;



	bus_event.etype = type;

	bus_event.event_data = data;

	cnss_pci_call_driver_uevent(pci_priv, CNSS_BUS_EVENT, &bus_event);

}



static void cnss_pci_handle_linkdown(struct cnss_pci_data *pci_priv)

{

	struct cnss_plat_data *plat_priv = pci_priv->plat_priv;
@@ -913,6 +924,12 @@ static void cnss_pci_handle_linkdown(struct cnss_pci_data *pci_priv) 
	if (pci_dev->device == QCA6174_DEVICE_ID)

		disable_irq(pci_dev->irq);



	/* Notify bus related event. Now for all supported chips.

	 * Here PCIe LINK_DOWN notification taken care.

	 * uevent buffer can be extended later, to cover more bus info.

	 */

	cnss_pci_update_link_event(pci_priv, BUS_EVENT_PCI_LINK_DOWN, NULL);



	cnss_fatal_err("PCI link down, schedule recovery\n");

	cnss_schedule_recovery(&pci_dev->dev, CNSS_REASON_LINK_DOWN);

}

include/net/cnss2.h

+12 −0
Original line number Diff line number Diff line
@@ -83,6 +83,13 @@ enum cnss_driver_status { 
	CNSS_RECOVERY,

	CNSS_FW_DOWN,

	CNSS_HANG_EVENT,

	CNSS_BUS_EVENT,

};



enum cnss_bus_event_type {

	BUS_EVENT_PCI_LINK_DOWN = 0,



	BUS_EVENT_INVALID = 0xFFFF,

};



struct cnss_hang_event {
@@ -90,6 +97,11 @@ struct cnss_hang_event { 
	u16 hang_event_data_len;

};



struct cnss_bus_event {

	enum cnss_bus_event_type etype;

	void *event_data;

};



struct cnss_uevent_data {

	enum cnss_driver_status status;

	void *data;