diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2023-08-16 11:10:50 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-08-22 13:19:24 +0200 |
| commit | c83031afaaaa4a1129394439c8cd93ffe94f9970 (patch) | |
| tree | 0c61483fdb7b8d804d8013bee5a4b97e990f3bbe /drivers/net/wireless/intel/iwlwifi/fw/api/debug.h | |
| parent | 80fa8377f5c64aac66699f98186605f7fa25089e (diff) | |
wifi: iwlwifi: pcie: point invalid TFDs to invalid data
There are occasionally bugs which cause the device to try
to use a TFD that it wasn't supposed to, and these are
very hard to diagnose. Fill all unused TFDs with a debug
command that immediately causes an error to be detected
in these cases.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230816104355.10a9af1ca91f.Ifc790d62c52b4bc9a74c9581610af498509f5759@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/api/debug.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/api/debug.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/debug.h b/drivers/net/wireless/intel/iwlwifi/fw/api/debug.h index 48ffab22bb7b..90ce8d9b6ad3 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/debug.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/debug.h @@ -30,6 +30,11 @@ enum iwl_debug_cmds { */ HOST_EVENT_CFG = 0x3, /** + * @INVALID_WR_PTR_CMD: invalid write pointer, set in the TFD + * when it's not in use + */ + INVALID_WR_PTR_CMD = 0x6, + /** * @DBGC_SUSPEND_RESUME: * DBGC suspend/resume commad. Uses a single dword as data: * 0 - resume DBGC recording |