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| author | Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com> | 2017-06-27 14:13:02 +0300 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2017-08-09 09:30:15 +0300 |
| commit | 61d8c626468a8193a5e890e9f633edc10aa05c1e (patch) | |
| tree | 9db7afcd2beb8e5c09527f2735f686ae917997ff | |
| parent | b1a1efc57665f7c70e2051e0531837cb1985f11b (diff) | |
| download | linux-61d8c626468a8193a5e890e9f633edc10aa05c1e.tar.bz2 | |
iwlwifi: mvm: add debugfs to force CT-kill
CT-kill is a thermal-based "RF-kill", which disables the NIC
completely if the temperature gets too high, in order to avoid damage.
Add a debugfs entry to simulate high temperatures, in order to test
CT-kill flows in the driver without having to physically heat the
device up.
Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 14 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 2 |
3 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c index 29f1d1807415..0b5cae54b86b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c @@ -114,6 +114,18 @@ static ssize_t iwl_dbgfs_stop_ctdp_write(struct iwl_mvm *mvm, char *buf, return ret ?: count; } +static ssize_t iwl_dbgfs_force_ctkill_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + if (!iwl_mvm_firmware_running(mvm) || + mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) + return -EIO; + + iwl_mvm_enter_ctkill(mvm); + + return count; +} + static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { @@ -1641,6 +1653,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); /* Device wide debugfs entries */ MVM_DEBUGFS_READ_FILE_OPS(ctdp_budget); MVM_DEBUGFS_WRITE_FILE_OPS(stop_ctdp, 8); +MVM_DEBUGFS_WRITE_FILE_OPS(force_ctkill, 8); MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); @@ -1828,6 +1841,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(ctdp_budget, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(stop_ctdp, dbgfs_dir, S_IWUSR); + MVM_DEBUGFS_ADD_FILE(force_ctkill, dbgfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 8b6238e1c7ea..a6983042d3b8 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -1755,6 +1755,7 @@ void iwl_mvm_thermal_exit(struct iwl_mvm *mvm); void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state); int iwl_mvm_get_temp(struct iwl_mvm *mvm, s32 *temp); void iwl_mvm_ct_kill_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); +void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm); int iwl_mvm_send_temp_report_ths_cmd(struct iwl_mvm *mvm); int iwl_mvm_ctdp_command(struct iwl_mvm *mvm, u32 op, u32 budget); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c index 3f143402cf7f..8876c2abc440 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c @@ -71,7 +71,7 @@ #define IWL_MVM_TEMP_NOTIF_WAIT_TIMEOUT HZ -static void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm) +void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm) { struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; u32 duration = tt->params.ct_kill_duration; |