From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from paleale.coelho.fi ([176.9.41.70]:43200 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752491AbdHIGnr (ORCPT ); Wed, 9 Aug 2017 02:43:47 -0400 From: Luca Coelho To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org, Chaya Rachel Ivgi , Luca Coelho Date: Wed, 9 Aug 2017 09:43:41 +0300 Message-Id: <20170809064341.13523-1-luca@coelho.fi> (sfid-20170809_084350_968245_B46BBF27) In-Reply-To: <87r2wnjymu.fsf@kamboji.qca.qualcomm.com> References: <87r2wnjymu.fsf@kamboji.qca.qualcomm.com> Subject: [PATCH v2 4/19] iwlwifi: mvm: add debugfs to force CT-kill Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Chaya Rachel Ivgi 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 Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 14 ++++++++++++++ drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 1 + drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 2 +- 3 files changed, 16 insertions(+), 1 deletion(-) 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; -- 2.13.2