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qcacld-3.0: Send hang data to userspace

Browse source 
With the new feature when the recovery is triggered informatation is
collected from the various modules and send the data to user space.

Change-Id: I8d7bb5be46df6150d0efa1cdb8db74a135ba89d7
CRs-Fixed: 2651903
This commit is contained in:
Arun Kumar Khandavalli 2020-03-28 19:32:20 +05:30 • committed by nshrivas
commit 8037f0b7e9
3 changed files with 44 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

10
core/hdd/src/wlan_hdd_cfg80211.c
View file

@ -1129,11 +1129,13 @@ hdd_convert_hang_reason(enum qdf_hang_reason reason)
* wlan_hdd_send_hang_reason_event() - Send hang reason to the userspace
* @hdd_ctx: Pointer to hdd context
* @reason: cds recovery reason
* @data: Hang Data
*
* Return: 0 on success or failure reason
*/
int wlan_hdd_send_hang_reason_event(struct hdd_context *hdd_ctx,
enum qdf_hang_reason reason)
enum qdf_hang_reason reason, void *data,
size_t data_len)
{
struct sk_buff *vendor_event;
enum qca_wlan_vendor_hang_reason hang_reason;
@ -1153,7 +1155,7 @@ int wlan_hdd_send_hang_reason_event(struct hdd_context *hdd_ctx,
vendor_event = cfg80211_vendor_event_alloc(hdd_ctx->wiphy,
wdev,
sizeof(uint32_t),
sizeof(uint32_t) + data_len,
HANG_REASON_INDEX,
GFP_KERNEL);
if (!vendor_event) {
@ -1164,7 +1166,9 @@ int wlan_hdd_send_hang_reason_event(struct hdd_context *hdd_ctx,
hang_reason = hdd_convert_hang_reason(reason);
if (nla_put_u32(vendor_event, QCA_WLAN_VENDOR_ATTR_HANG_REASON,
(uint32_t)hang_reason)) {
(uint32_t)hang_reason) ||
nla_put(vendor_event, QCA_WLAN_VENDOR_ATTR_HANG_REASON_DATA,
data_len, data)) {
hdd_err("QCA_WLAN_VENDOR_ATTR_HANG_REASON put fail");
kfree_skb(vendor_event);
return -EINVAL;

5
core/hdd/src/wlan_hdd_cfg80211.h
View file

@ -462,11 +462,14 @@ int wlan_hdd_send_avoid_freq_event(struct hdd_context *hdd_ctx,
* wlan_hdd_send_hang_reason_event() - Send hang reason to the userspace
* @hdd_ctx: Pointer to hdd context
* @reason: cds recovery reason
* @data: Hang Data
* @data_len: Hang Data len
*
* Return: 0 on success or failure reason
*/
int wlan_hdd_send_hang_reason_event(struct hdd_context *hdd_ctx,
uint32_t reason);
uint32_t reason, void *data,
size_t data_len);
int wlan_hdd_send_avoid_freq_for_dnbs(struct hdd_context *hdd_ctx,
uint8_t op_chan);

36
core/hdd/src/wlan_hdd_driver_ops.c
View file

@ -44,6 +44,8 @@
#include "wlan_hdd_debugfs.h"
#include "cfg_ucfg_api.h"
#include <linux/suspend.h>
#include <qdf_notifier.h>
#include <qdf_hang_event_notifier.h>
#ifdef MODULE
#define WLAN_MODULE_NAME module_name(THIS_MODULE)
@ -698,11 +700,12 @@ static inline void hdd_wlan_ssr_shutdown_event(void) { }
#endif
/**
* hdd_send_hang_reason() - Send hang reason to the userspace
* hdd_send_hang_data() - Send hang data to userspace
* @data: Hang data
*
* Return: None
*/
static void hdd_send_hang_reason(void)
static void hdd_send_hang_data(void *data, size_t data_len)
{
enum qdf_hang_reason reason = QDF_REASON_UNSPECIFIED;
struct hdd_context *hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
@ -712,7 +715,7 @@ static void hdd_send_hang_reason(void)
cds_get_recovery_reason(&reason);
cds_reset_recovery_reason();
wlan_hdd_send_hang_reason_event(hdd_ctx, reason);
wlan_hdd_send_hang_reason_event(hdd_ctx, reason, data, data_len);
}
/**
@ -744,7 +747,7 @@ static void hdd_psoc_shutdown_notify(struct hdd_context *hdd_ctx)
cds_shutdown_notifier_purge();
hdd_wlan_ssr_shutdown_event();
hdd_send_hang_reason();
hdd_send_hang_data(NULL, 0);
}
static void __hdd_soc_recovery_shutdown(void)
@ -1707,6 +1710,9 @@ static void wlan_hdd_pld_notify_handler(struct device *dev,
static void
wlan_hdd_pld_uevent(struct device *dev, struct pld_uevent_data *event_data)
{
struct qdf_notifer_data hang_evt_data;
enum qdf_hang_reason reason = QDF_REASON_UNSPECIFIED;
switch (event_data->uevent) {
case PLD_FW_DOWN:
hdd_info("Received firmware down indication");
@ -1726,13 +1732,35 @@ wlan_hdd_pld_uevent(struct device *dev, struct pld_uevent_data *event_data)
* on a firmware we already know is down.
*/
qdf_complete_wait_events();
cds_get_recovery_reason(&reason);
hang_evt_data.hang_data =
qdf_mem_malloc(QDF_HANG_EVENT_DATA_SIZE);
if (!hang_evt_data.hang_data)
return;
hang_evt_data.offset = 0;
qdf_hang_event_notifier_call(reason, &hang_evt_data);
if (event_data->fw_down.hang_event_data_len >=
QDF_HANG_EVENT_DATA_SIZE / 2)
event_data->fw_down.hang_event_data_len =
QDF_HANG_EVENT_DATA_SIZE / 2;
hang_evt_data.offset = QDF_WLAN_HANG_FW_OFFSET;
if (event_data->fw_down.hang_event_data_len)
qdf_mem_copy((hang_evt_data.hang_data +
hang_evt_data.offset),
event_data->fw_down.hang_event_data,
event_data->fw_down.hang_event_data_len);
hdd_send_hang_data(hang_evt_data.hang_data,
QDF_HANG_EVENT_DATA_SIZE);
qdf_mem_free(hang_evt_data.hang_data);
break;
default:
/* other events intentionally not handled */
hdd_debug("Received uevent %d", event_data->uevent);
break;
}
}
#ifdef FEATURE_RUNTIME_PM