From: Luca Coelho <luca@coelho.fi>
To: kvalo@codeaurora.org
Cc: linux-wireless@vger.kernel.org,
Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>,
Luca Coelho <luciano.coelho@intel.com>
Subject: [PATCH v2 4/19] iwlwifi: mvm: add debugfs to force CT-kill
Date: Wed, 9 Aug 2017 09:43:41 +0300 [thread overview]
Message-ID: <20170809064341.13523-1-luca@coelho.fi> (raw)
In-Reply-To: <87r2wnjymu.fsf@kamboji.qca.qualcomm.com>
From: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
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>
---
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
next prev parent reply other threads:[~2017-08-09 6:43 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-05 19:43 [PATCH 00/19] iwlwifi: updates intended for v4.14 2017-08-05 Luca Coelho
2017-08-05 19:43 ` [PATCH 01/19] iwlwifi: mvm: remove useless condition in LED code Luca Coelho
2017-08-05 19:43 ` [PATCH 02/19] iwlwifi: mvm: use firmware LED command where applicable Luca Coelho
2017-08-05 19:43 ` [PATCH 03/19] iwlwifi: mvm: add const to thermal_cooling_device_ops structure Luca Coelho
2017-08-05 19:43 ` [PATCH 04/19] iwlwifi: mvm: add debugfs to force CT-kill Luca Coelho
2017-08-07 13:11 ` Kalle Valo
2017-08-07 13:25 ` Luca Coelho
2017-08-07 13:28 ` Kalle Valo
2017-08-09 6:43 ` Luca Coelho [this message]
2017-08-09 7:36 ` [PATCH v2 4/19] " Kalle Valo
2017-08-05 19:43 ` [PATCH 05/19] iwlwifi: change functions that can only return 0 to void Luca Coelho
2017-08-05 19:43 ` [PATCH 06/19] iwlwifi: fix a few instances of misaligned kerneldoc parameters Luca Coelho
2017-08-05 19:43 ` [PATCH 07/19] iwlwifi: add support of FPGA fw Luca Coelho
2017-08-05 19:43 ` [PATCH 08/19] iwlwifi: fix a000 RF_ID define Luca Coelho
2017-08-05 19:43 ` [PATCH 09/19] iwlwifi: dump smem configuration when firmware crashes Luca Coelho
2017-08-05 19:43 ` [PATCH 10/19] iwlwifi: mvm: move a000 device NVM retrieval to a common place Luca Coelho
2017-08-05 19:43 ` [PATCH 11/19] iwlwifi: mvm: set the default cTDP budget Luca Coelho
2017-08-05 19:43 ` [PATCH 12/19] iwlwifi: mvm: support new beacon template command Luca Coelho
2017-08-07 13:22 ` Kalle Valo
2017-08-09 6:46 ` [PATCH v2 " Luca Coelho
2017-08-09 18:20 ` [PATCH v3 " Luca Coelho
2017-08-05 19:43 ` [PATCH 13/19] iwlwifi: mvm: don't send CTDP commands via debugfs if not supported Luca Coelho
2017-08-05 19:43 ` [PATCH 14/19] iwlwifi: mvm: add station before allocating a queue Luca Coelho
2017-08-05 19:43 ` [PATCH 15/19] iwlwifi: pcie: don't init a Tx queue with an SSN > size of the queue Luca Coelho
2017-08-05 19:43 ` [PATCH 16/19] iwlwifi: fix nmi triggering from host Luca Coelho
2017-08-05 19:43 ` [PATCH 17/19] iwlwifi: remove references to unsupported HW Luca Coelho
2017-08-05 19:43 ` [PATCH 18/19] iwlwifi: pcie: free the TSO page when a Tx queue is unmapped on A000 devices Luca Coelho
2017-08-05 19:43 ` [PATCH 19/19] iwlwifi: mvm: fix the coex firmware API Luca Coelho
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