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cnss2: Add CNSS_BUS_EVENT to report bus info

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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: Lin Bai <lbai@codeaurora.org>
This commit is contained in:
Lin Bai 2021-03-31 12:22:28 +08:00
parent 3144c1d49d
commit d15d938f79
2 changed files with 29 additions and 0 deletions
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17
drivers/net/wireless/cnss2/pci.c
View File

@ -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);
}

12
include/net/cnss2.h
View File

@ -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;