diff options
| author | Arun Khandavalli <akhandav@qti.qualcomm.com> | 2016-12-21 15:19:21 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2016-12-30 12:14:07 +0300 |
| commit | 727000e6af34748552d13069ce52de2ad3d6c271 (patch) | |
| tree | f1bd0b11aa199890bc9928cc74ffe229d21a839a /drivers/net/wireless/ath/ath10k/debug.h | |
| parent | 88407beb1b1462f706a1950a355fd086e1c450b6 (diff) | |
| download | linux-727000e6af34748552d13069ce52de2ad3d6c271.tar.xz | |
ath10k: support dev_coredump for crash dump
Whenever firmware crashes, and both CONFIG_ATH10K_DEBUGFS and
CONFIG_ALLOW_DEV_COREDUMP are enabled, dump information about the crash via a
devcoredump device. Dump can be read from userspace for further analysis from:
/sys/class/devcoredump/devcd*/data
As until now we have provided the firmware crash dump file via fw_crash_dump
debugfs keep it still available but deprecate and a warning print that the user
should switch to using dev_coredump.
Future improvement would be not to depend on CONFIG_ATH10K_DEBUGFS, as there
might be systems which want to get the firmware crash dump but not enable
debugfs. How to handle memory consumption is also something which needs to be
taken into account.
Signed-off-by: Arun Khandavalli <akhandav@qti.qualcomm.com>
[kvalo@qca.qualcomm.com: rebase, fixes, improve commit log]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/debug.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/debug.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h index 335512b11ca2..2368f47314ae 100644 --- a/drivers/net/wireless/ath/ath10k/debug.h +++ b/drivers/net/wireless/ath/ath10k/debug.h @@ -84,6 +84,9 @@ struct ath10k_fw_crash_data * ath10k_debug_get_new_fw_crash_data(struct ath10k *ar); void ath10k_debug_dbglog_add(struct ath10k *ar, u8 *buffer, int len); + +int ath10k_debug_fw_devcoredump(struct ath10k *ar); + #define ATH10K_DFS_STAT_INC(ar, c) (ar->debug.dfs_stats.c++) void ath10k_debug_get_et_strings(struct ieee80211_hw *hw, @@ -166,6 +169,11 @@ static inline u32 ath10k_debug_get_fw_dbglog_level(struct ath10k *ar) return 0; } +static inline int ath10k_debug_fw_devcoredump(struct ath10k *ar) +{ + return 0; +} + #define ATH10K_DFS_STAT_INC(ar, c) do { } while (0) #define ath10k_debug_get_et_strings NULL |