[PATCH 00/18] iwlwifi: updates intended for v5.4 2019-08-21

[PATCH 00/18] iwlwifi: updates intended for v5.4 2019-08-21

[Luca Coelho]

From: Luca Coelho <luciano.coelho@intel.com>

Hi,

Here's the second set of patches intended for v5.4.  It's the usual
development, new features, cleanups and bugfixes.

The changes are:

* Removal of (broken) d0i3 continues;
* Debug infrastructure work continues;
* Fix for the SN value in certain suspend/resume situations;
* Some work on new FW scan APIs;
* A few clean-ups;
* Other small fixes and improvements;

As usual, I'm pushing this to a pending branch, for kbuild bot, and
will send a pull-request later.

Please review.

Cheers,
Luca.


Alex Malamud (2):
  iwlwifi: mvm: ftm: make common calib signed
  iwlwifi: Set w-pointer upon resume according to SN

Ayala Beker (2):
  iwlwifi: scan: add support for new scan request command version
  iwlwifi: scan: don't pass large argument by value

Emmanuel Grumbach (6):
  iwlwifi: remove runtime_pm_mode
  iwlwifi: remove the opmode's d0i3 handlers
  iwlwifi: pcie: remove the refs / unrefs from the transport
  iwlwifi: pcie: remove some more d0i3 code from the transport
  iwlwifi: remove the d0i3 related module parameters
  iwlwifi: remove pm_runtime completely

Haim Dreyfuss (1):
  iwlwifi: remove unused regdb_ptrs allocation

Johannes Berg (1):
  iwlwifi: mvm: use FW thermal monitoring regardless of CONFIG_THERMAL

Mordechay Goodstein (1):
  iwlwifi: mvm: name magic numbers with enum

Shahar S Matityahu (5):
  iwlwifi: dbg_ini: align dbg tlv functions names to a single format
  iwlwifi: dbg: add debug periphery registers to 9000 device family
  iwlwifi: dbg_ini: maintain buffer allocations from trans instead of
    TLVs buffer
  iwlwifi: dbg_ini: use linked list to store debug TLVs
  iwlwifi: dbg_ini: remove periphery phy and aux regions handling

 .../wireless/intel/iwlwifi/fw/api/dbg-tlv.h   |   2 +
 .../net/wireless/intel/iwlwifi/fw/api/rs.h    |  18 ++-
 .../net/wireless/intel/iwlwifi/fw/api/scan.h  |  55 ++++++-
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c   |  53 +++---
 drivers/net/wireless/intel/iwlwifi/fw/file.h  |   4 +-
 drivers/net/wireless/intel/iwlwifi/fw/img.h   |   9 --
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.c  | 153 +++++-------------
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.h  |  24 ++-
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c  |  19 +--
 .../wireless/intel/iwlwifi/iwl-modparams.h    |   9 +-
 .../wireless/intel/iwlwifi/iwl-nvm-parse.c    |  14 --
 .../net/wireless/intel/iwlwifi/iwl-op-mode.h  |  23 ---
 .../net/wireless/intel/iwlwifi/iwl-trans.c    |  14 --
 .../net/wireless/intel/iwlwifi/iwl-trans.h    | 106 ++++--------
 drivers/net/wireless/intel/iwlwifi/mvm/d3.c   |   9 ++
 .../net/wireless/intel/iwlwifi/mvm/debugfs.c  |  37 +++++
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c   |  17 +-
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |  11 +-
 .../net/wireless/intel/iwlwifi/mvm/rs-fw.c    |  19 ++-
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c |  87 +++++++---
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c |  99 ------------
 .../wireless/intel/iwlwifi/pcie/internal.h    |  11 +-
 .../wireless/intel/iwlwifi/pcie/trans-gen2.c  |   6 +-
 .../net/wireless/intel/iwlwifi/pcie/trans.c   |  67 ++------
 .../net/wireless/intel/iwlwifi/pcie/tx-gen2.c |  42 +----
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c  |  92 ++++-------
 26 files changed, 363 insertions(+), 637 deletions(-)

-- 
2.23.0.rc1

[PATCH 01/18] iwlwifi: mvm: ftm: make common calib signed

[Luca Coelho]

From: Alex Malamud <alex.malamud@intel.com>

The common calib value should be signed, so use int instead of u16.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/file.h  |  3 +-
 .../net/wireless/intel/iwlwifi/mvm/debugfs.c  | 37 +++++++++++++++++++
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c   |  3 +-
 3 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index ea2b3d77f848..418064ced337 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -441,9 +441,10 @@ enum iwl_ucode_tlv_capa {
 	IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA                = (__force iwl_ucode_tlv_capa_t)44,
 	IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2		= (__force iwl_ucode_tlv_capa_t)45,
 	IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD		= (__force iwl_ucode_tlv_capa_t)46,
-	IWL_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS		= (__force iwl_ucode_tlv_capa_t)48,
 	IWL_UCODE_TLV_CAPA_FTM_CALIBRATED		= (__force iwl_ucode_tlv_capa_t)47,
+	IWL_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS		= (__force iwl_ucode_tlv_capa_t)48,
 	IWL_UCODE_TLV_CAPA_CS_MODIFY			= (__force iwl_ucode_tlv_capa_t)49,
+	IWL_UCODE_TLV_CAPA_SET_LTR_GEN2			= (__force iwl_ucode_tlv_capa_t)50,
 
 	/* set 2 */
 	IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE		= (__force iwl_ucode_tlv_capa_t)64,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 6d67d3da31e0..994a4ba07204 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1758,6 +1758,38 @@ iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
+static ssize_t
+iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
+			   char *buf, size_t count, loff_t *ppos)
+{
+	int ret;
+	struct iwl_ltr_config_cmd ltr_config = {0};
+
+	if (!iwl_mvm_firmware_running(mvm))
+		return -EIO;
+
+	if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
+		   &ltr_config.flags,
+		   &ltr_config.static_long,
+		   &ltr_config.static_short,
+		   &ltr_config.ltr_cfg_values[0],
+		   &ltr_config.ltr_cfg_values[1],
+		   &ltr_config.ltr_cfg_values[2],
+		   &ltr_config.ltr_cfg_values[3]) != 7) {
+		return -EINVAL;
+	}
+
+	mutex_lock(&mvm->mutex);
+	ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
+				   &ltr_config);
+	mutex_unlock(&mvm->mutex);
+
+	if (ret)
+		IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
+
+	return ret ?: count;
+}
+
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
 
 /* Device wide debugfs entries */
@@ -1806,6 +1838,8 @@ MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16);
 
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
 
+MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
+
 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
 				  size_t count, loff_t *ppos)
 {
@@ -1993,6 +2027,9 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 #endif
 	MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
 
+	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
+		MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
+
 	debugfs_create_bool("enable_scan_iteration_notif", 0600,
 			    mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
 	debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 251e7c235aaa..bb2aec9c6738 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1302,7 +1302,8 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	iwl_mvm_tt_tx_backoff(mvm, 0);
 #endif
 
-	WARN_ON(iwl_mvm_config_ltr(mvm));
+	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
+		WARN_ON(iwl_mvm_config_ltr(mvm));
 
 	ret = iwl_mvm_power_update_device(mvm);
 	if (ret)
-- 
2.23.0.rc1

[PATCH 02/18] iwlwifi: scan: add support for new scan request command version

[Luca Coelho]

From: Ayala Beker <ayala.beker@intel.com>

Scan API was changed to support 6Ghz channels as well.
Support the new version.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/fw/api/scan.h  | 55 ++++++++++--
 drivers/net/wireless/intel/iwlwifi/fw/file.h  |  1 +
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |  6 ++
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 86 +++++++++++++------
 4 files changed, 116 insertions(+), 32 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/scan.h b/drivers/net/wireless/intel/iwlwifi/fw/api/scan.h
index c4960f045415..39c64850cb6f 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/scan.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/scan.h
@@ -93,6 +93,8 @@ struct iwl_ssid_ie {
 #define IWL_SCAN_SHORT_BLACKLIST_LEN	16
 #define IWL_SCAN_MAX_PROFILES		11
 #define SCAN_OFFLOAD_PROBE_REQ_SIZE	512
+#define SCAN_NUM_BAND_PROBE_DATA_V_1	2
+#define SCAN_NUM_BAND_PROBE_DATA_V_2	3
 
 /* Default watchdog (in MS) for scheduled scan iteration */
 #define IWL_SCHED_SCAN_WATCHDOG cpu_to_le16(15000)
@@ -251,9 +253,22 @@ struct iwl_scan_probe_segment {
  * @common_data: last (and common) part of the probe
  * @buf: raw data block
  */
+struct iwl_scan_probe_req_v1 {
+	struct iwl_scan_probe_segment mac_header;
+	struct iwl_scan_probe_segment band_data[SCAN_NUM_BAND_PROBE_DATA_V_1];
+	struct iwl_scan_probe_segment common_data;
+	u8 buf[SCAN_OFFLOAD_PROBE_REQ_SIZE];
+} __packed;
+
+/* iwl_scan_probe_req - PROBE_REQUEST_FRAME_API_S_VER_v2
+ * @mac_header: first (and common) part of the probe
+ * @band_data: band specific data
+ * @common_data: last (and common) part of the probe
+ * @buf: raw data block
+ */
 struct iwl_scan_probe_req {
 	struct iwl_scan_probe_segment mac_header;
-	struct iwl_scan_probe_segment band_data[2];
+	struct iwl_scan_probe_segment band_data[SCAN_NUM_BAND_PROBE_DATA_V_2];
 	struct iwl_scan_probe_segment common_data;
 	u8 buf[SCAN_OFFLOAD_PROBE_REQ_SIZE];
 } __packed;
@@ -608,15 +623,29 @@ enum iwl_umac_scan_general_flags2 {
  * struct iwl_scan_channel_cfg_umac
  * @flags:		bitmap - 0-19:	directed scan to i'th ssid.
  * @channel_num:	channel number 1-13 etc.
+ * @band:		band of channel: 0 for 2GHz, 1 for 5GHz
  * @iter_count:		repetition count for the channel.
  * @iter_interval:	interval between two scan iterations on one channel.
  */
-struct iwl_scan_channel_cfg_umac {
+struct  iwl_scan_channel_cfg_umac {
 	__le32 flags;
-	u8 channel_num;
-	u8 iter_count;
-	__le16 iter_interval;
-} __packed; /* SCAN_CHANNEL_CFG_S_VER2 */
+	/* Both versions are of the same size, so use a union without adjusting
+	 * the command size later
+	 */
+	union {
+		struct {
+			u8 channel_num;
+			u8 iter_count;
+			__le16 iter_interval;
+		} v1;  /* SCAN_CHANNEL_CFG_S_VER1 */
+		struct {
+			u8 channel_num;
+			u8 band;
+			u8 iter_count;
+			u8 iter_interval;
+		 } v2; /* SCAN_CHANNEL_CFG_S_VER2 */
+	};
+} __packed;
 
 /**
  * struct iwl_scan_umac_schedule
@@ -630,6 +659,16 @@ struct iwl_scan_umac_schedule {
 	u8 reserved;
 } __packed; /* SCAN_SCHED_PARAM_API_S_VER_1 */
 
+struct iwl_scan_req_umac_tail_v1 {
+	/* SCAN_PERIODIC_PARAMS_API_S_VER_1 */
+	struct iwl_scan_umac_schedule schedule[IWL_MAX_SCHED_SCAN_PLANS];
+	__le16 delay;
+	__le16 reserved;
+	/* SCAN_PROBE_PARAMS_API_S_VER_1 */
+	struct iwl_scan_probe_req_v1 preq;
+	struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
+} __packed;
+
 /**
  * struct iwl_scan_req_umac_tail - the rest of the UMAC scan request command
  *      parameters following channels configuration array.
@@ -639,12 +678,12 @@ struct iwl_scan_umac_schedule {
  * @preq: probe request with IEs blocks
  * @direct_scan: list of SSIDs for directed active scan
  */
-struct iwl_scan_req_umac_tail {
+struct iwl_scan_req_umac_tail_v2 {
 	/* SCAN_PERIODIC_PARAMS_API_S_VER_1 */
 	struct iwl_scan_umac_schedule schedule[IWL_MAX_SCHED_SCAN_PLANS];
 	__le16 delay;
 	__le16 reserved;
-	/* SCAN_PROBE_PARAMS_API_S_VER_1 */
+	/* SCAN_PROBE_PARAMS_API_S_VER_2 */
 	struct iwl_scan_probe_req preq;
 	struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
 } __packed;
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index 418064ced337..3d567240ef11 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -323,6 +323,7 @@ enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_FTM_RTT_ACCURACY      = (__force iwl_ucode_tlv_api_t)54,
 	IWL_UCODE_TLV_API_SAR_TABLE_VER         = (__force iwl_ucode_tlv_api_t)55,
 	IWL_UCODE_TLV_API_ADWELL_HB_DEF_N_AP	= (__force iwl_ucode_tlv_api_t)57,
+	IWL_UCODE_TLV_API_SCAN_EXT_CHAN_VER	= (__force iwl_ucode_tlv_api_t)58,
 
 	NUM_IWL_UCODE_TLV_API
 #ifdef __CHECKER__
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index ed52e2ea97d9..2aa9bfc5e113 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1387,6 +1387,12 @@ static inline bool iwl_mvm_cdb_scan_api(struct iwl_mvm *mvm)
 	return mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22000;
 }
 
+static inline bool iwl_mvm_is_scan_ext_chan_supported(struct iwl_mvm *mvm)
+{
+	return fw_has_api(&mvm->fw->ucode_capa,
+			  IWL_UCODE_TLV_API_SCAN_EXT_CHAN_VER);
+}
+
 static inline bool iwl_mvm_has_new_rx_stats_api(struct iwl_mvm *mvm)
 {
 	return fw_has_api(&mvm->fw->ucode_capa,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index 2652e6ce4089..85e33310804e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -77,7 +77,10 @@
 #define IWL_SCAN_DWELL_FRAGMENTED	44
 #define IWL_SCAN_DWELL_EXTENDED		90
 #define IWL_SCAN_NUM_OF_FRAGS		3
+#define IWL_SCAN_LAST_2_4_CHN		14
 
+#define IWL_SCAN_BAND_5_2		0
+#define IWL_SCAN_BAND_2_4		1
 
 /* adaptive dwell max budget time [TU] for full scan */
 #define IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN 300
@@ -956,11 +959,24 @@ static int iwl_mvm_scan_lmac_flags(struct iwl_mvm *mvm,
 	return flags;
 }
 
+static void
+iwl_mvm_scan_set_legacy_probe_req(struct iwl_scan_probe_req_v1 *p_req,
+				  struct iwl_scan_probe_req src_p_req)
+{
+	int i;
+
+	p_req->mac_header = src_p_req.mac_header;
+	for (i = 0; i < SCAN_NUM_BAND_PROBE_DATA_V_1; i++)
+		p_req->band_data[i] = src_p_req.band_data[i];
+	p_req->common_data = src_p_req.common_data;
+	memcpy(p_req->buf, src_p_req.buf, SCAN_OFFLOAD_PROBE_REQ_SIZE);
+}
+
 static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			     struct iwl_mvm_scan_params *params)
 {
 	struct iwl_scan_req_lmac *cmd = mvm->scan_cmd;
-	struct iwl_scan_probe_req *preq =
+	struct iwl_scan_probe_req_v1 *preq =
 		(void *)(cmd->data + sizeof(struct iwl_scan_channel_cfg_lmac) *
 			 mvm->fw->ucode_capa.n_scan_channels);
 	u32 ssid_bitmap = 0;
@@ -1030,7 +1046,7 @@ static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	iwl_mvm_lmac_scan_cfg_channels(mvm, params->channels,
 				       params->n_channels, ssid_bitmap, cmd);
 
-	*preq = params->preq;
+	iwl_mvm_scan_set_legacy_probe_req(preq, params->preq);
 
 	return 0;
 }
@@ -1384,9 +1400,17 @@ iwl_mvm_umac_scan_cfg_channels(struct iwl_mvm *mvm,
 
 	for (i = 0; i < n_channels; i++) {
 		channel_cfg[i].flags = cpu_to_le32(ssid_bitmap);
-		channel_cfg[i].channel_num = channels[i]->hw_value;
-		channel_cfg[i].iter_count = 1;
-		channel_cfg[i].iter_interval = 0;
+		channel_cfg[i].v1.channel_num = channels[i]->hw_value;
+		if (iwl_mvm_is_scan_ext_chan_supported(mvm)) {
+			channel_cfg[i].v2.band =
+				channels[i]->hw_value <= IWL_SCAN_LAST_2_4_CHN ?
+					IWL_SCAN_BAND_2_4 : IWL_SCAN_BAND_5_2;
+			channel_cfg[i].v2.iter_count = 1;
+			channel_cfg[i].v2.iter_interval = 0;
+		} else {
+			channel_cfg[i].v1.iter_count = 1;
+			channel_cfg[i].v1.iter_interval = 0;
+		}
 	}
 }
 
@@ -1476,9 +1500,12 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	struct iwl_scan_req_umac *cmd = mvm->scan_cmd;
 	struct iwl_scan_umac_chan_param *chan_param;
 	void *cmd_data = iwl_mvm_get_scan_req_umac_data(mvm);
-	struct iwl_scan_req_umac_tail *sec_part = cmd_data +
-		sizeof(struct iwl_scan_channel_cfg_umac) *
-			mvm->fw->ucode_capa.n_scan_channels;
+	void *sec_part = cmd_data + sizeof(struct iwl_scan_channel_cfg_umac) *
+		mvm->fw->ucode_capa.n_scan_channels;
+	struct iwl_scan_req_umac_tail_v2 *tail_v2 =
+		(struct iwl_scan_req_umac_tail_v2 *)sec_part;
+	struct iwl_scan_req_umac_tail_v1 *tail_v1;
+	struct iwl_ssid_ie *direct_scan;
 	int uid, i;
 	u32 ssid_bitmap = 0;
 	u8 channel_flags = 0;
@@ -1540,18 +1567,12 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	chan_param->flags = channel_flags;
 	chan_param->count = params->n_channels;
 
-	iwl_scan_build_ssids(params, sec_part->direct_scan, &ssid_bitmap);
-
-	iwl_mvm_umac_scan_cfg_channels(mvm, params->channels,
-				       params->n_channels, ssid_bitmap,
-				       cmd_data);
-
 	for (i = 0; i < params->n_scan_plans; i++) {
 		struct cfg80211_sched_scan_plan *scan_plan =
 			&params->scan_plans[i];
 
-		sec_part->schedule[i].iter_count = scan_plan->iterations;
-		sec_part->schedule[i].interval =
+		tail_v2->schedule[i].iter_count = scan_plan->iterations;
+		tail_v2->schedule[i].interval =
 			cpu_to_le16(scan_plan->interval);
 	}
 
@@ -1561,12 +1582,23 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	 * For example, when regular scan is requested the driver sets one scan
 	 * plan with one iteration.
 	 */
-	if (!sec_part->schedule[i - 1].iter_count)
-		sec_part->schedule[i - 1].iter_count = 0xff;
+	if (!tail_v2->schedule[i - 1].iter_count)
+		tail_v2->schedule[i - 1].iter_count = 0xff;
 
-	sec_part->delay = cpu_to_le16(params->delay);
-	sec_part->preq = params->preq;
+	tail_v2->delay = cpu_to_le16(params->delay);
 
+	if (iwl_mvm_is_scan_ext_chan_supported(mvm)) {
+		tail_v2->preq = params->preq;
+		direct_scan = tail_v2->direct_scan;
+	} else {
+		tail_v1 = (struct iwl_scan_req_umac_tail_v1 *)sec_part;
+		iwl_mvm_scan_set_legacy_probe_req(&tail_v1->preq, params->preq);
+		direct_scan = tail_v1->direct_scan;
+	}
+	iwl_scan_build_ssids(params, direct_scan, &ssid_bitmap);
+	iwl_mvm_umac_scan_cfg_channels(mvm, params->channels,
+				       params->n_channels, ssid_bitmap,
+				       cmd_data);
 	return 0;
 }
 
@@ -1996,6 +2028,7 @@ static int iwl_mvm_scan_stop_wait(struct iwl_mvm *mvm, int type)
 int iwl_mvm_scan_size(struct iwl_mvm *mvm)
 {
 	int base_size = IWL_SCAN_REQ_UMAC_SIZE_V1;
+	int tail_size;
 
 	if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm))
 		base_size = IWL_SCAN_REQ_UMAC_SIZE_V8;
@@ -2004,16 +2037,21 @@ int iwl_mvm_scan_size(struct iwl_mvm *mvm)
 	else if (iwl_mvm_cdb_scan_api(mvm))
 		base_size = IWL_SCAN_REQ_UMAC_SIZE_V6;
 
-	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
+	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
+		if (iwl_mvm_is_scan_ext_chan_supported(mvm))
+			tail_size = sizeof(struct iwl_scan_req_umac_tail_v2);
+		else
+			tail_size = sizeof(struct iwl_scan_req_umac_tail_v1);
+
 		return base_size +
 			sizeof(struct iwl_scan_channel_cfg_umac) *
 				mvm->fw->ucode_capa.n_scan_channels +
-			sizeof(struct iwl_scan_req_umac_tail);
-
+			tail_size;
+	}
 	return sizeof(struct iwl_scan_req_lmac) +
 		sizeof(struct iwl_scan_channel_cfg_lmac) *
 		mvm->fw->ucode_capa.n_scan_channels +
-		sizeof(struct iwl_scan_probe_req);
+		sizeof(struct iwl_scan_probe_req_v1);
 }
 
 /*
-- 
2.23.0.rc1

[PATCH 03/18] iwlwifi: mvm: name magic numbers with enum

[Luca Coelho]

From: Mordechay Goodstein <mordechay.goodstein@intel.com>

It's hard to follow the numbers so rename it with enum

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/fw/api/rs.h    | 18 +++++++++++++-----
 .../net/wireless/intel/iwlwifi/mvm/rs-fw.c    | 19 +++++++++++--------
 2 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h
index 9eddc4dc2ae6..4347be6491e9 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h
@@ -7,7 +7,7 @@
  *
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -29,7 +29,7 @@
  *
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -166,8 +166,16 @@ enum iwl_tlc_mng_ht_rates {
 	IWL_TLC_MNG_HT_RATE_MAX = IWL_TLC_MNG_HT_RATE_MCS11,
 };
 
-/* Maximum supported tx antennas number */
-#define MAX_NSS 2
+enum IWL_TLC_MNG_NSS {
+	IWL_TLC_NSS_1,
+	IWL_TLC_NSS_2,
+	IWL_TLC_NSS_MAX
+};
+
+enum IWL_TLC_HT_BW_RATES {
+	IWL_TLC_HT_BW_NONE_160,
+	IWL_TLC_HT_BW_160,
+};
 
 /**
  * struct tlc_config_cmd - TLC configuration
@@ -195,7 +203,7 @@ struct iwl_tlc_config_cmd {
 	u8 amsdu;
 	__le16 flags;
 	__le16 non_ht_rates;
-	__le16 ht_rates[MAX_NSS][2];
+	__le16 ht_rates[IWL_TLC_NSS_MAX][2];
 	__le16 max_mpdu_len;
 	u8 sgi_ch_width_supp;
 	u8 reserved2[1];
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
index 08b67812e94e..8f50e2b121bd 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c
@@ -193,7 +193,7 @@ rs_fw_vht_set_enabled_rates(const struct ieee80211_sta *sta,
 	int i, highest_mcs;
 
 	for (i = 0; i < sta->rx_nss; i++) {
-		if (i == MAX_NSS)
+		if (i == IWL_TLC_NSS_MAX)
 			break;
 
 		highest_mcs = rs_fw_vht_highest_rx_mcs_index(vht_cap, i + 1);
@@ -204,9 +204,10 @@ rs_fw_vht_set_enabled_rates(const struct ieee80211_sta *sta,
 		if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
 			supp &= ~BIT(IWL_TLC_MNG_HT_RATE_MCS9);
 
-		cmd->ht_rates[i][0] = cpu_to_le16(supp);
+		cmd->ht_rates[i][IWL_TLC_HT_BW_NONE_160] = cpu_to_le16(supp);
 		if (sta->bandwidth == IEEE80211_STA_RX_BW_160)
-			cmd->ht_rates[i][1] = cmd->ht_rates[i][0];
+			cmd->ht_rates[i][IWL_TLC_HT_BW_160] =
+				cmd->ht_rates[i][IWL_TLC_HT_BW_NONE_160];
 	}
 }
 
@@ -241,7 +242,7 @@ rs_fw_he_set_enabled_rates(const struct ieee80211_sta *sta,
 		le16_to_cpu(sband->iftype_data->he_cap.he_mcs_nss_supp.tx_mcs_160);
 	int i;
 
-	for (i = 0; i < sta->rx_nss && i < MAX_NSS; i++) {
+	for (i = 0; i < sta->rx_nss && i < IWL_TLC_NSS_MAX; i++) {
 		u16 _mcs_160 = (mcs_160 >> (2 * i)) & 0x3;
 		u16 _mcs_80 = (mcs_80 >> (2 * i)) & 0x3;
 		u16 _tx_mcs_160 = (tx_mcs_160 >> (2 * i)) & 0x3;
@@ -255,7 +256,7 @@ rs_fw_he_set_enabled_rates(const struct ieee80211_sta *sta,
 		}
 		if (_mcs_80 > _tx_mcs_80)
 			_mcs_80 = _tx_mcs_80;
-		cmd->ht_rates[i][0] =
+		cmd->ht_rates[i][IWL_TLC_HT_BW_NONE_160] =
 			cpu_to_le16(rs_fw_he_ieee80211_mcs_to_rs_mcs(_mcs_80));
 
 		/* If one side doesn't support - mark both as not supporting */
@@ -266,7 +267,7 @@ rs_fw_he_set_enabled_rates(const struct ieee80211_sta *sta,
 		}
 		if (_mcs_160 > _tx_mcs_160)
 			_mcs_160 = _tx_mcs_160;
-		cmd->ht_rates[i][1] =
+		cmd->ht_rates[i][IWL_TLC_HT_BW_160] =
 			cpu_to_le16(rs_fw_he_ieee80211_mcs_to_rs_mcs(_mcs_160));
 	}
 }
@@ -300,8 +301,10 @@ static void rs_fw_set_supp_rates(struct ieee80211_sta *sta,
 		rs_fw_vht_set_enabled_rates(sta, vht_cap, cmd);
 	} else if (ht_cap->ht_supported) {
 		cmd->mode = IWL_TLC_MNG_MODE_HT;
-		cmd->ht_rates[0][0] = cpu_to_le16(ht_cap->mcs.rx_mask[0]);
-		cmd->ht_rates[1][0] = cpu_to_le16(ht_cap->mcs.rx_mask[1]);
+		cmd->ht_rates[IWL_TLC_NSS_1][IWL_TLC_HT_BW_NONE_160] =
+			cpu_to_le16(ht_cap->mcs.rx_mask[0]);
+		cmd->ht_rates[IWL_TLC_NSS_2][IWL_TLC_HT_BW_NONE_160] =
+			cpu_to_le16(ht_cap->mcs.rx_mask[1]);
 	}
 }
 
-- 
2.23.0.rc1

[PATCH 04/18] iwlwifi: mvm: use FW thermal monitoring regardless of CONFIG_THERMAL

[Luca Coelho]

From: Johannes Berg <johannes.berg@intel.com>

It doesn't make sense to use the FW thermal monitoring only if we
have CONFIG_THERMAL, because then we use the default thresholds
etc. which may be different from what the firmware implements, as
we don't maintain them in the driver now. Only the CTDP code needs
to actually be under CONFIG_THERMAL.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c  | 5 +----
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 4 ----
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index bb2aec9c6738..411a79e15333 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1273,7 +1273,6 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 			goto error;
 	}
 
-#ifdef CONFIG_THERMAL
 	if (iwl_mvm_is_tt_in_fw(mvm)) {
 		/* in order to give the responsibility of ct-kill and
 		 * TX backoff to FW we need to send empty temperature reporting
@@ -1285,6 +1284,7 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 		iwl_mvm_tt_tx_backoff(mvm, 0);
 	}
 
+#ifdef CONFIG_THERMAL
 	/* TODO: read the budget from BIOS / Platform NVM */
 
 	/*
@@ -1297,9 +1297,6 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 		if (ret)
 			goto error;
 	}
-#else
-	/* Initialize tx backoffs to the minimal possible */
-	iwl_mvm_tt_tx_backoff(mvm, 0);
 #endif
 
 	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 2aa9bfc5e113..3efcc3a939b8 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1422,7 +1422,6 @@ iwl_mvm_get_agg_status(struct iwl_mvm *mvm, void *tx_resp)
 
 static inline bool iwl_mvm_is_tt_in_fw(struct iwl_mvm *mvm)
 {
-#ifdef CONFIG_THERMAL
 	/* these two TLV are redundant since the responsibility to CT-kill by
 	 * FW happens only after we send at least one command of
 	 * temperature THs report.
@@ -1431,9 +1430,6 @@ static inline bool iwl_mvm_is_tt_in_fw(struct iwl_mvm *mvm)
 			   IWL_UCODE_TLV_CAPA_CT_KILL_BY_FW) &&
 	       fw_has_capa(&mvm->fw->ucode_capa,
 			   IWL_UCODE_TLV_CAPA_TEMP_THS_REPORT_SUPPORT);
-#else /* CONFIG_THERMAL */
-	return false;
-#endif /* CONFIG_THERMAL */
 }
 
 static inline bool iwl_mvm_is_ctdp_supported(struct iwl_mvm *mvm)
-- 
2.23.0.rc1

[PATCH 05/18] iwlwifi: Set w-pointer upon resume according to SN

[Luca Coelho]

From: Alex Malamud <alex.malamud@intel.com>

During D3 state, FW may send packets.
As a result, "write" queue pointer will be incremented by FW.
Upon resume from D3, driver should adjust its shadows of "write" and "read"
pointers to the value reported by FW.

1. Keep TID used during wowlan configuration.
2. Upon resume, set driver's "write" and "read" queue pointers
	to the value reported by FW.

Signed-off-by: Alex Malamud <alex.malamud@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/iwl-trans.h     | 13 +++++++++++++
 drivers/net/wireless/intel/iwlwifi/mvm/d3.c        |  9 +++++++++
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h       |  1 +
 drivers/net/wireless/intel/iwlwifi/pcie/internal.h |  1 +
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c    |  2 ++
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c       | 14 ++++++++++++++
 6 files changed, 40 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 942662eaf523..034c935b5579 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -562,6 +562,8 @@ struct iwl_trans_ops {
 	void (*reclaim)(struct iwl_trans *trans, int queue, int ssn,
 			struct sk_buff_head *skbs);
 
+	void (*set_q_ptrs)(struct iwl_trans *trans, int queue, int ptr);
+
 	bool (*txq_enable)(struct iwl_trans *trans, int queue, u16 ssn,
 			   const struct iwl_trans_txq_scd_cfg *cfg,
 			   unsigned int queue_wdg_timeout);
@@ -999,6 +1001,17 @@ static inline void iwl_trans_reclaim(struct iwl_trans *trans, int queue,
 	trans->ops->reclaim(trans, queue, ssn, skbs);
 }
 
+static inline void iwl_trans_set_q_ptrs(struct iwl_trans *trans, int queue,
+					int ptr)
+{
+	if (WARN_ON_ONCE(trans->state != IWL_TRANS_FW_ALIVE)) {
+		IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state);
+		return;
+	}
+
+	trans->ops->set_q_ptrs(trans, queue, ptr);
+}
+
 static inline void iwl_trans_txq_disable(struct iwl_trans *trans, int queue,
 					 bool configure_scd)
 {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 89839a83d8c2..6f7345b121a6 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -831,6 +831,8 @@ iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
 	bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
 					 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
 
+	mvm->offload_tid = wowlan_config_cmd->offloading_tid;
+
 	if (!unified_image) {
 		ret = iwl_mvm_switch_to_d3(mvm);
 		if (ret)
@@ -1656,6 +1658,13 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
 		mvm_ap_sta->tid_data[i].seq_number = seq;
 	}
 
+	if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
+		i = mvm->offload_tid;
+		iwl_trans_set_q_ptrs(mvm->trans,
+				     mvm_ap_sta->tid_data[i].txq_id,
+				     mvm_ap_sta->tid_data[i].seq_number >> 4);
+	}
+
 	/* now we have all the data we need, unlock to avoid mac80211 issues */
 	mutex_unlock(&mvm->mutex);
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 3efcc3a939b8..79bbdf8121cc 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1001,6 +1001,7 @@ struct iwl_mvm {
 	struct ieee80211_channel **nd_channels;
 	int n_nd_channels;
 	bool net_detect;
+	u8 offload_tid;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	bool d3_wake_sysassert;
 	bool d3_test_active;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index 9f5d0fc839fe..6bf2a816e221 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -697,6 +697,7 @@ void iwl_pcie_hcmd_complete(struct iwl_trans *trans,
 			    struct iwl_rx_cmd_buffer *rxb);
 void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 			    struct sk_buff_head *skbs);
+void iwl_trans_pcie_set_q_ptrs(struct iwl_trans *trans, int txq_id, int ptr);
 void iwl_trans_pcie_tx_reset(struct iwl_trans *trans);
 void iwl_pcie_gen2_update_byte_tbl(struct iwl_trans_pcie *trans_pcie,
 				   struct iwl_txq *txq, u16 byte_cnt,
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index a423c5c6605e..3a4be2ff3d42 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -3397,6 +3397,8 @@ static const struct iwl_trans_ops trans_ops_pcie_gen2 = {
 	.tx = iwl_trans_pcie_gen2_tx,
 	.reclaim = iwl_trans_pcie_reclaim,
 
+	.set_q_ptrs = iwl_trans_pcie_set_q_ptrs,
+
 	.txq_alloc = iwl_trans_pcie_dyn_txq_alloc,
 	.txq_free = iwl_trans_pcie_dyn_txq_free,
 	.wait_txq_empty = iwl_trans_pcie_wait_txq_empty,
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 2f0ba7ef53b8..b25f51b5893c 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -1234,6 +1234,20 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 	spin_unlock_bh(&txq->lock);
 }
 
+/* Set wr_ptr of specific device and txq  */
+void iwl_trans_pcie_set_q_ptrs(struct iwl_trans *trans, int txq_id, int ptr)
+{
+	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+
+	spin_lock_bh(&txq->lock);
+
+	txq->write_ptr = ptr;
+	txq->read_ptr = txq->write_ptr;
+
+	spin_unlock_bh(&txq->lock);
+}
+
 static int iwl_pcie_set_cmd_in_flight(struct iwl_trans *trans,
 				      const struct iwl_host_cmd *cmd)
 {
-- 
2.23.0.rc1

[PATCH 06/18] iwlwifi: remove runtime_pm_mode

[Luca Coelho]

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

This is always set to IWL_PLAT_PM_MODE_DISABLED

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-trans.h    | 33 +++----------------
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 28 ----------------
 .../net/wireless/intel/iwlwifi/pcie/trans.c   |  9 -----
 3 files changed, 5 insertions(+), 65 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 034c935b5579..b50290a724ff 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -630,9 +630,6 @@ enum iwl_trans_state {
 /**
  * DOC: Platform power management
  *
- * There are two types of platform power management: system-wide
- * (WoWLAN) and runtime.
- *
  * In system-wide power management the entire platform goes into a low
  * power state (e.g. idle or suspend to RAM) at the same time and the
  * device is configured as a wakeup source for the entire platform.
@@ -641,48 +638,32 @@ enum iwl_trans_state {
  * put the platform in low power mode).  The device's behavior in this
  * mode is dictated by the wake-on-WLAN configuration.
  *
- * In runtime power management, only the devices which are themselves
- * idle enter a low power state.  This is done at runtime, which means
- * that the entire system is still running normally.  This mode is
- * usually triggered automatically by the device driver and requires
- * the ability to enter and exit the low power modes in a very short
- * time, so there is not much impact in usability.
- *
  * The terms used for the device's behavior are as follows:
  *
  *	- D0: the device is fully powered and the host is awake;
  *	- D3: the device is in low power mode and only reacts to
  *		specific events (e.g. magic-packet received or scan
  *		results found);
- *	- D0I3: the device is in low power mode and reacts to any
- *		activity (e.g. RX);
  *
  * These terms reflect the power modes in the firmware and are not to
- * be confused with the physical device power state.  The NIC can be
- * in D0I3 mode even if, for instance, the PCI device is in D3 state.
+ * be confused with the physical device power state.
  */
 
 /**
  * enum iwl_plat_pm_mode - platform power management mode
  *
  * This enumeration describes the device's platform power management
- * behavior when in idle mode (i.e. runtime power management) or when
- * in system-wide suspend (i.e WoWLAN).
+ * behavior when in system-wide suspend (i.e WoWLAN).
  *
  * @IWL_PLAT_PM_MODE_DISABLED: power management is disabled for this
- *	device.  At runtime, this means that nothing happens and the
- *	device always remains in active.  In system-wide suspend mode,
- *	it means that the all connections will be closed automatically
- *	by mac80211 before the platform is suspended.
+ *	device.  In system-wide suspend mode, it means that the all
+ *	connections will be closed automatically by mac80211 before
+ *	the platform is suspended.
  * @IWL_PLAT_PM_MODE_D3: the device goes into D3 mode (i.e. WoWLAN).
- *	For runtime power management, this mode is not officially
- *	supported.
- * @IWL_PLAT_PM_MODE_D0I3: the device goes into D0I3 mode.
  */
 enum iwl_plat_pm_mode {
 	IWL_PLAT_PM_MODE_DISABLED,
 	IWL_PLAT_PM_MODE_D3,
-	IWL_PLAT_PM_MODE_D0I3,
 };
 
 /* Max time to wait for trans to become idle/non-idle on d0i3
@@ -795,9 +776,6 @@ struct iwl_trans_debug {
  * @system_pm_mode: the system-wide power management mode in use.
  *	This mode is set dynamically, depending on the WoWLAN values
  *	configured from the userspace at runtime.
- * @runtime_pm_mode: the runtime power management mode in use.  This
- *	mode is set during the initialization phase and is not
- *	supposed to change during runtime.
  */
 struct iwl_trans {
 	const struct iwl_trans_ops *ops;
@@ -842,7 +820,6 @@ struct iwl_trans {
 	struct iwl_self_init_dram init_dram;
 
 	enum iwl_plat_pm_mode system_pm_mode;
-	enum iwl_plat_pm_mode runtime_pm_mode;
 
 	/* pointer to trans specific struct */
 	/*Ensure that this pointer will always be aligned to sizeof pointer */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 2a34f074d72c..10c9167d78fa 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -1076,25 +1076,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* register transport layer debugfs here */
 	iwl_trans_pcie_dbgfs_register(iwl_trans);
 
-	/* if RTPM is in use, enable it in our device */
-	if (iwl_trans->runtime_pm_mode != IWL_PLAT_PM_MODE_DISABLED) {
-		/* We explicitly set the device to active here to
-		 * clear contingent errors.
-		 */
-		pm_runtime_set_active(&pdev->dev);
-
-		pm_runtime_set_autosuspend_delay(&pdev->dev,
-					 iwlwifi_mod_params.d0i3_timeout);
-		pm_runtime_use_autosuspend(&pdev->dev);
-
-		/* We are not supposed to call pm_runtime_allow() by
-		 * ourselves, but let userspace enable runtime PM via
-		 * sysfs.  However, since we don't enable this from
-		 * userspace yet, we need to allow/forbid() ourselves.
-		*/
-		pm_runtime_allow(&pdev->dev);
-	}
-
 	/* The PCI device starts with a reference taken and we are
 	 * supposed to release it here.  But to simplify the
 	 * interaction with the opmode, we don't do it now, but let
@@ -1112,15 +1093,6 @@ static void iwl_pci_remove(struct pci_dev *pdev)
 {
 	struct iwl_trans *trans = pci_get_drvdata(pdev);
 
-	/* if RTPM was in use, restore it to the state before probe */
-	if (trans->runtime_pm_mode != IWL_PLAT_PM_MODE_DISABLED) {
-		/* We should not call forbid here, but we do for now.
-		 * Check the comment to pm_runtime_allow() in
-		 * iwl_pci_probe().
-		 */
-		pm_runtime_forbid(trans->dev);
-	}
-
 	iwl_drv_stop(trans->drv);
 
 	iwl_trans_pcie_free(trans);
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 3a4be2ff3d42..8eaacf423d33 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -3312,18 +3312,11 @@ static struct iwl_trans_dump_data
 #ifdef CONFIG_PM_SLEEP
 static int iwl_trans_pcie_suspend(struct iwl_trans *trans)
 {
-	if (trans->runtime_pm_mode == IWL_PLAT_PM_MODE_D0I3 &&
-	    (trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3))
-		return iwl_pci_fw_enter_d0i3(trans);
-
 	return 0;
 }
 
 static void iwl_trans_pcie_resume(struct iwl_trans *trans)
 {
-	if (trans->runtime_pm_mode == IWL_PLAT_PM_MODE_D0I3 &&
-	    (trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3))
-		iwl_pci_fw_exit_d0i3(trans);
 }
 #endif /* CONFIG_PM_SLEEP */
 
@@ -3660,8 +3653,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 						   WQ_HIGHPRI | WQ_UNBOUND, 1);
 	INIT_WORK(&trans_pcie->rba.rx_alloc, iwl_pcie_rx_allocator_work);
 
-	trans->runtime_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
-
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	trans_pcie->fw_mon_data.state = IWL_FW_MON_DBGFS_STATE_CLOSED;
 	mutex_init(&trans_pcie->fw_mon_data.mutex);
-- 
2.23.0.rc1

[PATCH 07/18] iwlwifi: remove the opmode's d0i3 handlers

[Luca Coelho]

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

Remove the now unneeded functions that called those from the
transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-op-mode.h  | 23 ------
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 70 -------------------
 .../wireless/intel/iwlwifi/pcie/internal.h    |  3 -
 3 files changed, 96 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
index f37d6fee0225..3008a5246be8 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-op-mode.h
@@ -140,9 +140,6 @@ struct iwl_cfg;
  * @nic_config: configure NIC, called before firmware is started.
  *	May sleep
  * @wimax_active: invoked when WiMax becomes active. May sleep
- * @enter_d0i3: configure the fw to enter d0i3. return 1 to indicate d0i3
- *	entrance is aborted (e.g. due to held reference). May sleep.
- * @exit_d0i3: configure the fw to exit d0i3. May sleep.
  */
 struct iwl_op_mode_ops {
 	struct iwl_op_mode *(*start)(struct iwl_trans *trans,
@@ -164,8 +161,6 @@ struct iwl_op_mode_ops {
 	void (*cmd_queue_full)(struct iwl_op_mode *op_mode);
 	void (*nic_config)(struct iwl_op_mode *op_mode);
 	void (*wimax_active)(struct iwl_op_mode *op_mode);
-	int (*enter_d0i3)(struct iwl_op_mode *op_mode);
-	int (*exit_d0i3)(struct iwl_op_mode *op_mode);
 };
 
 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops);
@@ -258,22 +253,4 @@ static inline void iwl_op_mode_wimax_active(struct iwl_op_mode *op_mode)
 	op_mode->ops->wimax_active(op_mode);
 }
 
-static inline int iwl_op_mode_enter_d0i3(struct iwl_op_mode *op_mode)
-{
-	might_sleep();
-
-	if (!op_mode->ops->enter_d0i3)
-		return 0;
-	return op_mode->ops->enter_d0i3(op_mode);
-}
-
-static inline int iwl_op_mode_exit_d0i3(struct iwl_op_mode *op_mode)
-{
-	might_sleep();
-
-	if (!op_mode->ops->exit_d0i3)
-		return 0;
-	return op_mode->ops->exit_d0i3(op_mode);
-}
-
 #endif /* __iwl_op_mode_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 10c9167d78fa..603a3c40d1c8 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -1150,76 +1150,6 @@ static int iwl_pci_resume(struct device *device)
 	return 0;
 }
 
-int iwl_pci_fw_enter_d0i3(struct iwl_trans *trans)
-{
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	int ret;
-
-	if (test_bit(STATUS_FW_ERROR, &trans->status))
-		return 0;
-
-	set_bit(STATUS_TRANS_GOING_IDLE, &trans->status);
-
-	/* config the fw */
-	ret = iwl_op_mode_enter_d0i3(trans->op_mode);
-	if (ret == 1) {
-		IWL_DEBUG_RPM(trans, "aborting d0i3 entrance\n");
-		clear_bit(STATUS_TRANS_GOING_IDLE, &trans->status);
-		return -EBUSY;
-	}
-	if (ret)
-		goto err;
-
-	ret = wait_event_timeout(trans_pcie->d0i3_waitq,
-				 test_bit(STATUS_TRANS_IDLE, &trans->status),
-				 msecs_to_jiffies(IWL_TRANS_IDLE_TIMEOUT));
-	if (!ret) {
-		IWL_ERR(trans, "Timeout entering D0i3\n");
-		ret = -ETIMEDOUT;
-		goto err;
-	}
-
-	clear_bit(STATUS_TRANS_GOING_IDLE, &trans->status);
-
-	return 0;
-err:
-	clear_bit(STATUS_TRANS_GOING_IDLE, &trans->status);
-	iwl_trans_fw_error(trans);
-	return ret;
-}
-
-int iwl_pci_fw_exit_d0i3(struct iwl_trans *trans)
-{
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	int ret;
-
-	/* sometimes a D0i3 entry is not followed through */
-	if (!test_bit(STATUS_TRANS_IDLE, &trans->status))
-		return 0;
-
-	/* config the fw */
-	ret = iwl_op_mode_exit_d0i3(trans->op_mode);
-	if (ret)
-		goto err;
-
-	/* we clear STATUS_TRANS_IDLE only when D0I3_END command is completed */
-
-	ret = wait_event_timeout(trans_pcie->d0i3_waitq,
-				 !test_bit(STATUS_TRANS_IDLE, &trans->status),
-				 msecs_to_jiffies(IWL_TRANS_IDLE_TIMEOUT));
-	if (!ret) {
-		IWL_ERR(trans, "Timeout exiting D0i3\n");
-		ret = -ETIMEDOUT;
-		goto err;
-	}
-
-	return 0;
-err:
-	clear_bit(STATUS_TRANS_IDLE, &trans->status);
-	iwl_trans_fw_error(trans);
-	return ret;
-}
-
 static const struct dev_pm_ops iwl_dev_pm_ops = {
 	SET_SYSTEM_SLEEP_PM_OPS(iwl_pci_suspend,
 				iwl_pci_resume)
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index 6bf2a816e221..b5534fc33539 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -1059,9 +1059,6 @@ void iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans);
 static inline void iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans) { }
 #endif
 
-int iwl_pci_fw_exit_d0i3(struct iwl_trans *trans);
-int iwl_pci_fw_enter_d0i3(struct iwl_trans *trans);
-
 void iwl_pcie_rx_allocator_work(struct work_struct *data);
 
 /* common functions that are used by gen2 transport */
-- 
2.23.0.rc1

[PATCH 08/18] iwlwifi: pcie: remove the refs / unrefs from the transport

[Luca Coelho]

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

This code is now stale

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-trans.c    | 14 -----
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |  9 ----
 .../net/wireless/intel/iwlwifi/pcie/trans.c   | 33 ------------
 .../net/wireless/intel/iwlwifi/pcie/tx-gen2.c | 31 +----------
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c  | 53 +++++--------------
 5 files changed, 15 insertions(+), 125 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.c b/drivers/net/wireless/intel/iwlwifi/iwl-trans.c
index 727f73e0b3f1..d47ba334c7ac 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.c
@@ -202,17 +202,3 @@ int iwl_cmd_groups_verify_sorted(const struct iwl_trans_config *trans)
 	return 0;
 }
 IWL_EXPORT_SYMBOL(iwl_cmd_groups_verify_sorted);
-
-void iwl_trans_ref(struct iwl_trans *trans)
-{
-	if (trans->ops->ref)
-		trans->ops->ref(trans);
-}
-IWL_EXPORT_SYMBOL(iwl_trans_ref);
-
-void iwl_trans_unref(struct iwl_trans *trans)
-{
-	if (trans->ops->unref)
-		trans->ops->unref(trans);
-}
-IWL_EXPORT_SYMBOL(iwl_trans_unref);
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index b50290a724ff..7c63706eb07b 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -531,11 +531,6 @@ struct iwl_trans_rxq_dma_data {
  * @release_nic_access: let the NIC go to sleep. The "flags" parameter
  *	must be the same one that was sent before to the grab_nic_access.
  * @set_bits_mask - set SRAM register according to value and mask.
- * @ref: grab a reference to the transport/FW layers, disallowing
- *	certain low power states
- * @unref: release a reference previously taken with @ref. Note that
- *	initially the reference count is 1, making an initial @unref
- *	necessary to allow low power states.
  * @dump_data: return a vmalloc'ed buffer with debug data, maybe containing last
  *	TX'ed commands and similar. The buffer will be vfree'd by the caller.
  *	Note that the transport must fill in the proper file headers.
@@ -605,8 +600,6 @@ struct iwl_trans_ops {
 				   unsigned long *flags);
 	void (*set_bits_mask)(struct iwl_trans *trans, u32 reg, u32 mask,
 			      u32 value);
-	void (*ref)(struct iwl_trans *trans);
-	void (*unref)(struct iwl_trans *trans);
 	int  (*suspend)(struct iwl_trans *trans);
 	void (*resume)(struct iwl_trans *trans);
 
@@ -1254,8 +1247,6 @@ struct iwl_trans *iwl_trans_alloc(unsigned int priv_size,
 				  const struct iwl_cfg *cfg,
 				  const struct iwl_trans_ops *ops);
 void iwl_trans_free(struct iwl_trans *trans);
-void iwl_trans_ref(struct iwl_trans *trans);
-void iwl_trans_unref(struct iwl_trans *trans);
 
 /*****************************************************
 * driver (transport) register/unregister functions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 8eaacf423d33..8d509ec0e113 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2360,37 +2360,6 @@ static void iwl_trans_pcie_set_bits_mask(struct iwl_trans *trans, u32 reg,
 	spin_unlock_irqrestore(&trans_pcie->reg_lock, flags);
 }
 
-static void iwl_trans_pcie_ref(struct iwl_trans *trans)
-{
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
-	if (iwlwifi_mod_params.d0i3_disable)
-		return;
-
-	pm_runtime_get(&trans_pcie->pci_dev->dev);
-
-#ifdef CONFIG_PM
-	IWL_DEBUG_RPM(trans, "runtime usage count: %d\n",
-		      atomic_read(&trans_pcie->pci_dev->dev.power.usage_count));
-#endif /* CONFIG_PM */
-}
-
-static void iwl_trans_pcie_unref(struct iwl_trans *trans)
-{
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
-	if (iwlwifi_mod_params.d0i3_disable)
-		return;
-
-	pm_runtime_mark_last_busy(&trans_pcie->pci_dev->dev);
-	pm_runtime_put_autosuspend(&trans_pcie->pci_dev->dev);
-
-#ifdef CONFIG_PM
-	IWL_DEBUG_RPM(trans, "runtime usage count: %d\n",
-		      atomic_read(&trans_pcie->pci_dev->dev.power.usage_count));
-#endif /* CONFIG_PM */
-}
-
 static const char *get_csr_string(int cmd)
 {
 #define IWL_CMD(x) case x: return #x
@@ -3335,8 +3304,6 @@ static void iwl_trans_pcie_resume(struct iwl_trans *trans)
 	.grab_nic_access = iwl_trans_pcie_grab_nic_access,		\
 	.release_nic_access = iwl_trans_pcie_release_nic_access,	\
 	.set_bits_mask = iwl_trans_pcie_set_bits_mask,			\
-	.ref = iwl_trans_pcie_ref,					\
-	.unref = iwl_trans_pcie_unref,					\
 	.dump_data = iwl_trans_pcie_dump_data,				\
 	.d3_suspend = iwl_trans_pcie_d3_suspend,			\
 	.d3_resume = iwl_trans_pcie_d3_resume,				\
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
index 38d110338987..3a3ac81195dd 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
@@ -641,12 +641,8 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
 				      iwl_pcie_gen2_get_num_tbs(trans, tfd));
 
 	/* start timer if queue currently empty */
-	if (txq->read_ptr == txq->write_ptr) {
-		if (txq->wd_timeout)
-			mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
-		IWL_DEBUG_RPM(trans, "Q: %d first tx - take ref\n", txq->id);
-		iwl_trans_ref(trans);
-	}
+	if (txq->read_ptr == txq->write_ptr && txq->wd_timeout)
+		mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
 
 	/* Tell device the write index *just past* this latest filled TFD */
 	txq->write_ptr = iwl_queue_inc_wrap(trans, txq->write_ptr);
@@ -891,12 +887,6 @@ static int iwl_pcie_gen2_enqueue_hcmd(struct iwl_trans *trans,
 		mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
 
 	spin_lock_irqsave(&trans_pcie->reg_lock, flags);
-	if (!(cmd->flags & CMD_SEND_IN_IDLE) &&
-	    !trans_pcie->ref_cmd_in_flight) {
-		trans_pcie->ref_cmd_in_flight = true;
-		IWL_DEBUG_RPM(trans, "set ref_cmd_in_flight - ref\n");
-		iwl_trans_ref(trans);
-	}
 	/* Increment and update queue's write index */
 	txq->write_ptr = iwl_queue_inc_wrap(trans, txq->write_ptr);
 	iwl_pcie_gen2_txq_inc_wr_ptr(trans, txq);
@@ -1064,23 +1054,6 @@ void iwl_pcie_gen2_txq_unmap(struct iwl_trans *trans, int txq_id)
 		}
 		iwl_pcie_gen2_free_tfd(trans, txq);
 		txq->read_ptr = iwl_queue_inc_wrap(trans, txq->read_ptr);
-
-		if (txq->read_ptr == txq->write_ptr) {
-			unsigned long flags;
-
-			spin_lock_irqsave(&trans_pcie->reg_lock, flags);
-			if (txq_id != trans_pcie->cmd_queue) {
-				IWL_DEBUG_RPM(trans, "Q %d - last tx freed\n",
-					      txq->id);
-				iwl_trans_unref(trans);
-			} else if (trans_pcie->ref_cmd_in_flight) {
-				trans_pcie->ref_cmd_in_flight = false;
-				IWL_DEBUG_RPM(trans,
-					      "clear ref_cmd_in_flight\n");
-				iwl_trans_unref(trans);
-			}
-			spin_unlock_irqrestore(&trans_pcie->reg_lock, flags);
-		}
 	}
 
 	while (!skb_queue_empty(&txq->overflow_q)) {
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index b25f51b5893c..45356195c228 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -639,12 +639,6 @@ static void iwl_pcie_clear_cmd_in_flight(struct iwl_trans *trans)
 
 	lockdep_assert_held(&trans_pcie->reg_lock);
 
-	if (trans_pcie->ref_cmd_in_flight) {
-		trans_pcie->ref_cmd_in_flight = false;
-		IWL_DEBUG_RPM(trans, "clear ref_cmd_in_flight - unref\n");
-		iwl_trans_unref(trans);
-	}
-
 	if (!trans->cfg->base_params->apmg_wake_up_wa)
 		return;
 	if (WARN_ON(!trans_pcie->cmd_hold_nic_awake))
@@ -683,13 +677,8 @@ static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id)
 			unsigned long flags;
 
 			spin_lock_irqsave(&trans_pcie->reg_lock, flags);
-			if (txq_id != trans_pcie->cmd_queue) {
-				IWL_DEBUG_RPM(trans, "Q %d - last tx freed\n",
-					      txq->id);
-				iwl_trans_unref(trans);
-			} else {
+			if (txq_id == trans_pcie->cmd_queue)
 				iwl_pcie_clear_cmd_in_flight(trans);
-			}
 			spin_unlock_irqrestore(&trans_pcie->reg_lock, flags);
 		}
 	}
@@ -1225,11 +1214,6 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 		txq->overflow_tx = false;
 	}
 
-	if (txq->read_ptr == txq->write_ptr) {
-		IWL_DEBUG_RPM(trans, "Q %d - last tx reclaimed\n", txq->id);
-		iwl_trans_unref(trans);
-	}
-
 out:
 	spin_unlock_bh(&txq->lock);
 }
@@ -1261,13 +1245,6 @@ static int iwl_pcie_set_cmd_in_flight(struct iwl_trans *trans,
 	if (test_bit(STATUS_TRANS_DEAD, &trans->status))
 		return -ENODEV;
 
-	if (!(cmd->flags & CMD_SEND_IN_IDLE) &&
-	    !trans_pcie->ref_cmd_in_flight) {
-		trans_pcie->ref_cmd_in_flight = true;
-		IWL_DEBUG_RPM(trans, "set ref_cmd_in_flight - ref\n");
-		iwl_trans_ref(trans);
-	}
-
 	/*
 	 * wake up the NIC to make sure that the firmware will see the host
 	 * command - we will let the NIC sleep once all the host commands
@@ -2518,22 +2495,18 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
 	wait_write_ptr = ieee80211_has_morefrags(fc);
 
 	/* start timer if queue currently empty */
-	if (txq->read_ptr == txq->write_ptr) {
-		if (txq->wd_timeout) {
-			/*
-			 * If the TXQ is active, then set the timer, if not,
-			 * set the timer in remainder so that the timer will
-			 * be armed with the right value when the station will
-			 * wake up.
-			 */
-			if (!txq->frozen)
-				mod_timer(&txq->stuck_timer,
-					  jiffies + txq->wd_timeout);
-			else
-				txq->frozen_expiry_remainder = txq->wd_timeout;
-		}
-		IWL_DEBUG_RPM(trans, "Q: %d first tx - take ref\n", txq->id);
-		iwl_trans_ref(trans);
+	if (txq->read_ptr == txq->write_ptr && txq->wd_timeout) {
+		/*
+		 * If the TXQ is active, then set the timer, if not,
+		 * set the timer in remainder so that the timer will
+		 * be armed with the right value when the station will
+		 * wake up.
+		 */
+		if (!txq->frozen)
+			mod_timer(&txq->stuck_timer,
+				  jiffies + txq->wd_timeout);
+		else
+			txq->frozen_expiry_remainder = txq->wd_timeout;
 	}
 
 	/* Tell device the write index *just past* this latest filled TFD */
-- 
2.23.0.rc1

[PATCH 09/18] iwlwifi: pcie: remove some more d0i3 code from the transport

[Luca Coelho]

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

CMD_SEND_IN_IDLE, CMD_MAKE_TRANS_IDLE and CMD_WAKE_UP_TRANS
are not used. Remove them.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-trans.h    | 14 +----------
 .../wireless/intel/iwlwifi/pcie/internal.h    |  2 --
 .../net/wireless/intel/iwlwifi/pcie/trans.c   |  2 --
 .../net/wireless/intel/iwlwifi/pcie/tx-gen2.c | 10 --------
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c  | 24 -------------------
 5 files changed, 1 insertion(+), 51 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 7c63706eb07b..687eced8b548 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -159,10 +159,6 @@ static inline u32 iwl_rx_packet_payload_len(const struct iwl_rx_packet *pkt)
  * @CMD_ASYNC: Return right away and don't wait for the response
  * @CMD_WANT_SKB: Not valid with CMD_ASYNC. The caller needs the buffer of
  *	the response. The caller needs to call iwl_free_resp when done.
- * @CMD_SEND_IN_IDLE: The command should be sent even when the trans is idle.
- * @CMD_MAKE_TRANS_IDLE: The command response should mark the trans as idle.
- * @CMD_WAKE_UP_TRANS: The command response should wake up the trans
- *	(i.e. mark it as non-idle).
  * @CMD_WANT_ASYNC_CALLBACK: the op_mode's async callback function must be
  *	called after this command completes. Valid only with CMD_ASYNC.
  */
@@ -170,10 +166,7 @@ enum CMD_MODE {
 	CMD_ASYNC		= BIT(0),
 	CMD_WANT_SKB		= BIT(1),
 	CMD_SEND_IN_RFKILL	= BIT(2),
-	CMD_SEND_IN_IDLE	= BIT(3),
-	CMD_MAKE_TRANS_IDLE	= BIT(4),
-	CMD_WAKE_UP_TRANS	= BIT(5),
-	CMD_WANT_ASYNC_CALLBACK	= BIT(6),
+	CMD_WANT_ASYNC_CALLBACK	= BIT(3),
 };
 
 #define DEF_CMD_PAYLOAD_SIZE 320
@@ -659,11 +652,6 @@ enum iwl_plat_pm_mode {
 	IWL_PLAT_PM_MODE_D3,
 };
 
-/* Max time to wait for trans to become idle/non-idle on d0i3
- * enter/exit (in msecs).
- */
-#define IWL_TRANS_IDLE_TIMEOUT 2000
-
 /* Max time to wait for nmi interrupt */
 #define IWL_TRANS_NMI_TIMEOUT (HZ / 4)
 
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index b5534fc33539..97f9f0aa5c5f 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -558,7 +558,6 @@ struct iwl_trans_pcie {
 	bool ucode_write_complete;
 	wait_queue_head_t ucode_write_waitq;
 	wait_queue_head_t wait_command_queue;
-	wait_queue_head_t d0i3_waitq;
 
 	u8 page_offs, dev_cmd_offs;
 
@@ -581,7 +580,6 @@ struct iwl_trans_pcie {
 	/*protect hw register */
 	spinlock_t reg_lock;
 	bool cmd_hold_nic_awake;
-	bool ref_cmd_in_flight;
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	struct cont_rec fw_mon_data;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 8d509ec0e113..d1981e77b8f6 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -3594,8 +3594,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	/* Initialize the wait queue for commands */
 	init_waitqueue_head(&trans_pcie->wait_command_queue);
 
-	init_waitqueue_head(&trans_pcie->d0i3_waitq);
-
 	if (trans_pcie->msix_enabled) {
 		ret = iwl_pcie_init_msix_handler(pdev, trans_pcie);
 		if (ret)
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
index 3a3ac81195dd..cee507d29238 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
@@ -920,16 +920,6 @@ static int iwl_pcie_gen2_send_hcmd_sync(struct iwl_trans *trans,
 
 	IWL_DEBUG_INFO(trans, "Setting HCMD_ACTIVE for command %s\n", cmd_str);
 
-	if (pm_runtime_suspended(&trans_pcie->pci_dev->dev)) {
-		ret = wait_event_timeout(trans_pcie->d0i3_waitq,
-				 pm_runtime_active(&trans_pcie->pci_dev->dev),
-				 msecs_to_jiffies(IWL_TRANS_IDLE_TIMEOUT));
-		if (!ret) {
-			IWL_ERR(trans, "Timeout exiting D0i3 before hcmd\n");
-			return -ETIMEDOUT;
-		}
-	}
-
 	cmd_idx = iwl_pcie_gen2_enqueue_hcmd(trans, cmd);
 	if (cmd_idx < 0) {
 		ret = cmd_idx;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 45356195c228..9432374b69e2 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -1858,20 +1858,6 @@ void iwl_pcie_hcmd_complete(struct iwl_trans *trans,
 		wake_up(&trans_pcie->wait_command_queue);
 	}
 
-	if (meta->flags & CMD_MAKE_TRANS_IDLE) {
-		IWL_DEBUG_INFO(trans, "complete %s - mark trans as idle\n",
-			       iwl_get_cmd_string(trans, cmd->hdr.cmd));
-		set_bit(STATUS_TRANS_IDLE, &trans->status);
-		wake_up(&trans_pcie->d0i3_waitq);
-	}
-
-	if (meta->flags & CMD_WAKE_UP_TRANS) {
-		IWL_DEBUG_INFO(trans, "complete %s - clear trans idle flag\n",
-			       iwl_get_cmd_string(trans, cmd->hdr.cmd));
-		clear_bit(STATUS_TRANS_IDLE, &trans->status);
-		wake_up(&trans_pcie->d0i3_waitq);
-	}
-
 	meta->flags = 0;
 
 	spin_unlock_bh(&txq->lock);
@@ -1918,16 +1904,6 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 	IWL_DEBUG_INFO(trans, "Setting HCMD_ACTIVE for command %s\n",
 		       iwl_get_cmd_string(trans, cmd->id));
 
-	if (pm_runtime_suspended(&trans_pcie->pci_dev->dev)) {
-		ret = wait_event_timeout(trans_pcie->d0i3_waitq,
-				 pm_runtime_active(&trans_pcie->pci_dev->dev),
-				 msecs_to_jiffies(IWL_TRANS_IDLE_TIMEOUT));
-		if (!ret) {
-			IWL_ERR(trans, "Timeout exiting D0i3 before hcmd\n");
-			return -ETIMEDOUT;
-		}
-	}
-
 	cmd_idx = iwl_pcie_enqueue_hcmd(trans, cmd);
 	if (cmd_idx < 0) {
 		ret = cmd_idx;
-- 
2.23.0.rc1

[PATCH 10/18] iwlwifi: remove the d0i3 related module parameters

[Luca Coelho]

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

Those are now effectless.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c       | 8 --------
 drivers/net/wireless/intel/iwlwifi/iwl-modparams.h | 9 ++-------
 2 files changed, 2 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 38672dd5aae9..7afc6e43502a 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1704,8 +1704,6 @@ struct iwl_mod_params iwlwifi_mod_params = {
 	.fw_restart = true,
 	.bt_coex_active = true,
 	.power_level = IWL_POWER_INDEX_1,
-	.d0i3_disable = true,
-	.d0i3_timeout = 1000,
 	.uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
 	/* the rest are 0 by default */
 };
@@ -1823,9 +1821,6 @@ MODULE_PARM_DESC(antenna_coupling,
 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, 0444);
 MODULE_PARM_DESC(nvm_file, "NVM file name");
 
-module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable, bool, 0444);
-MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
-
 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable, bool, 0444);
 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
 
@@ -1873,9 +1868,6 @@ module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, 0444);
 MODULE_PARM_DESC(fw_monitor,
 		 "firmware monitor - to debug FW (default: false - needs lots of memory)");
 
-module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_timeout, uint, 0444);
-MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
-
 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool, 0444);
 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities (default: false)");
 
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h b/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
index 0cae2ef9b9df..ebea3f308b5d 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-modparams.h
@@ -6,7 +6,7 @@
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -27,7 +27,7 @@
  * BSD LICENSE
  *
  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -115,9 +115,6 @@ enum iwl_uapsd_disable {
  * @nvm_file: specifies a external NVM file
  * @uapsd_disable: disable U-APSD, see &enum iwl_uapsd_disable, default =
  *	IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT
- * @d0i3_disable: disable d0i3, default = 1,
- * @d0i3_timeout: time to wait after no refs are taken before
- *	entering D0i3 (in msecs)
  * @lar_disable: disable LAR (regulatory), default = 0
  * @fw_monitor: allow to use firmware monitor
  * @disable_11ac: disable VHT capabilities, default = false.
@@ -139,8 +136,6 @@ struct iwl_mod_params {
 	int antenna_coupling;
 	char *nvm_file;
 	u32 uapsd_disable;
-	bool d0i3_disable;
-	unsigned int d0i3_timeout;
 	bool lar_disable;
 	bool fw_monitor;
 	bool disable_11ac;
-- 
2.23.0.rc1

[PATCH 11/18] iwlwifi: remove pm_runtime completely

[Luca Coelho]

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

This means:
1) stop calling pm_runtime_resume when starting the hardware
2) removing the unneeded low_power parameter to start / stop hw / fw
   transport ops
3) squashing transport functions that are now the same
   _iwl_trans_pcie_start_hw / iwl_trans_pcie_start_hw

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-trans.h    | 33 ++++++-------------
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c   |  9 ++---
 drivers/net/wireless/intel/iwlwifi/pcie/drv.c |  1 -
 .../wireless/intel/iwlwifi/pcie/internal.h    |  5 ++-
 .../wireless/intel/iwlwifi/pcie/trans-gen2.c  |  6 ++--
 .../net/wireless/intel/iwlwifi/pcie/trans.c   | 21 +++++-------
 .../net/wireless/intel/iwlwifi/pcie/tx-gen2.c |  1 -
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c  |  1 -
 8 files changed, 25 insertions(+), 52 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 687eced8b548..fce0112b3ad4 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -452,9 +452,8 @@ struct iwl_trans_rxq_dma_data {
  *
  * All the handlers MUST be implemented
  *
- * @start_hw: starts the HW. If low_power is true, the NIC needs to be taken
- *	out of a low power state. From that point on, the HW can send
- *	interrupts. May sleep.
+ * @start_hw: starts the HW. From that point on, the HW can send interrupts.
+ *	May sleep.
  * @op_mode_leave: Turn off the HW RF kill indication if on
  *	May sleep
  * @start_fw: allocates and inits all the resources for the transport
@@ -464,9 +463,8 @@ struct iwl_trans_rxq_dma_data {
  *	the SCD base address in SRAM, then provide it here, or 0 otherwise.
  *	May sleep
  * @stop_device: stops the whole device (embedded CPU put to reset) and stops
- *	the HW. If low_power is true, the NIC will be put in low power state.
- *	From that point on, the HW will be stopped but will still issue an
- *	interrupt if the HW RF kill switch is triggered.
+ *	the HW. From that point on, the HW will be stopped but will still issue
+ *	an interrupt if the HW RF kill switch is triggered.
  *	This callback must do the right thing and not crash even if %start_hw()
  *	was called but not &start_fw(). May sleep.
  * @d3_suspend: put the device into the correct mode for WoWLAN during
@@ -532,12 +530,12 @@ struct iwl_trans_rxq_dma_data {
  */
 struct iwl_trans_ops {
 
-	int (*start_hw)(struct iwl_trans *iwl_trans, bool low_power);
+	int (*start_hw)(struct iwl_trans *iwl_trans);
 	void (*op_mode_leave)(struct iwl_trans *iwl_trans);
 	int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw,
 			bool run_in_rfkill);
 	void (*fw_alive)(struct iwl_trans *trans, u32 scd_addr);
-	void (*stop_device)(struct iwl_trans *trans, bool low_power);
+	void (*stop_device)(struct iwl_trans *trans);
 
 	void (*d3_suspend)(struct iwl_trans *trans, bool test, bool reset);
 	int (*d3_resume)(struct iwl_trans *trans, enum iwl_d3_status *status,
@@ -819,16 +817,11 @@ static inline void iwl_trans_configure(struct iwl_trans *trans,
 	WARN_ON(iwl_cmd_groups_verify_sorted(trans_cfg));
 }
 
-static inline int _iwl_trans_start_hw(struct iwl_trans *trans, bool low_power)
+static inline int iwl_trans_start_hw(struct iwl_trans *trans)
 {
 	might_sleep();
 
-	return trans->ops->start_hw(trans, low_power);
-}
-
-static inline int iwl_trans_start_hw(struct iwl_trans *trans)
-{
-	return trans->ops->start_hw(trans, true);
+	return trans->ops->start_hw(trans);
 }
 
 static inline void iwl_trans_op_mode_leave(struct iwl_trans *trans)
@@ -864,21 +857,15 @@ static inline int iwl_trans_start_fw(struct iwl_trans *trans,
 	return trans->ops->start_fw(trans, fw, run_in_rfkill);
 }
 
-static inline void _iwl_trans_stop_device(struct iwl_trans *trans,
-					  bool low_power)
+static inline void iwl_trans_stop_device(struct iwl_trans *trans)
 {
 	might_sleep();
 
-	trans->ops->stop_device(trans, low_power);
+	trans->ops->stop_device(trans);
 
 	trans->state = IWL_TRANS_NO_FW;
 }
 
-static inline void iwl_trans_stop_device(struct iwl_trans *trans)
-{
-	_iwl_trans_stop_device(trans, true);
-}
-
 static inline void iwl_trans_d3_suspend(struct iwl_trans *trans, bool test,
 					bool reset)
 {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 411a79e15333..0f6925a51435 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1141,13 +1141,8 @@ static int iwl_mvm_load_rt_fw(struct iwl_mvm *mvm)
 	}
 
 	iwl_fw_dbg_stop_sync(&mvm->fwrt);
-	/*
-	 * Stop and start the transport without entering low power
-	 * mode. This will save the state of other components on the
-	 * device that are triggered by the INIT firwmare (MFUART).
-	 */
-	_iwl_trans_stop_device(mvm->trans, false);
-	ret = _iwl_trans_start_hw(mvm->trans, false);
+	iwl_trans_stop_device(mvm->trans);
+	ret = iwl_trans_start_hw(mvm->trans);
 	if (ret)
 		return ret;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 603a3c40d1c8..3927d5590bb3 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -65,7 +65,6 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/module.h>
-#include <linux/pm_runtime.h>
 #include <linux/pci.h>
 #include <linux/acpi.h>
 
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index 97f9f0aa5c5f..95f78d8b4ae5 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -1109,9 +1109,8 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
 			   struct iwl_device_cmd *dev_cmd, int txq_id);
 int iwl_trans_pcie_gen2_send_hcmd(struct iwl_trans *trans,
 				  struct iwl_host_cmd *cmd);
-void iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans,
-				     bool low_power);
-void _iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans, bool low_power);
+void iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans);
+void _iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans);
 void iwl_pcie_gen2_txq_unmap(struct iwl_trans *trans, int txq_id);
 void iwl_pcie_gen2_tx_free(struct iwl_trans *trans);
 void iwl_pcie_gen2_tx_stop(struct iwl_trans *trans);
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
index 104b7cc75248..c099ad8b003f 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
@@ -136,7 +136,7 @@ static void iwl_pcie_gen2_apm_stop(struct iwl_trans *trans, bool op_mode_leave)
 		      BIT(trans->cfg->csr->flag_init_done));
 }
 
-void _iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans, bool low_power)
+void _iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 
@@ -215,7 +215,7 @@ void _iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans, bool low_power)
 	iwl_pcie_prepare_card_hw(trans);
 }
 
-void iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans, bool low_power)
+void iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	bool was_in_rfkill;
@@ -223,7 +223,7 @@ void iwl_trans_pcie_gen2_stop_device(struct iwl_trans *trans, bool low_power)
 	mutex_lock(&trans_pcie->mutex);
 	trans_pcie->opmode_down = true;
 	was_in_rfkill = test_bit(STATUS_RFKILL_OPMODE, &trans->status);
-	_iwl_trans_pcie_gen2_stop_device(trans, low_power);
+	_iwl_trans_pcie_gen2_stop_device(trans);
 	iwl_trans_pcie_handle_stop_rfkill(trans, was_in_rfkill);
 	mutex_unlock(&trans_pcie->mutex);
 }
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index d1981e77b8f6..0972ef064514 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -69,7 +69,6 @@
 #include <linux/bitops.h>
 #include <linux/gfp.h>
 #include <linux/vmalloc.h>
-#include <linux/pm_runtime.h>
 #include <linux/module.h>
 #include <linux/wait.h>
 
@@ -1231,7 +1230,7 @@ static void iwl_pcie_init_msix(struct iwl_trans_pcie *trans_pcie)
 	trans_pcie->hw_mask = trans_pcie->hw_init_mask;
 }
 
-static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
+static void _iwl_trans_pcie_stop_device(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 
@@ -1448,7 +1447,7 @@ void iwl_trans_pcie_handle_stop_rfkill(struct iwl_trans *trans,
 		iwl_trans_pcie_rf_kill(trans, hw_rfkill);
 }
 
-static void iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
+static void iwl_trans_pcie_stop_device(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	bool was_in_rfkill;
@@ -1456,7 +1455,7 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans, bool low_power)
 	mutex_lock(&trans_pcie->mutex);
 	trans_pcie->opmode_down = true;
 	was_in_rfkill = test_bit(STATUS_RFKILL_OPMODE, &trans->status);
-	_iwl_trans_pcie_stop_device(trans, low_power);
+	_iwl_trans_pcie_stop_device(trans);
 	iwl_trans_pcie_handle_stop_rfkill(trans, was_in_rfkill);
 	mutex_unlock(&trans_pcie->mutex);
 }
@@ -1472,9 +1471,9 @@ void iwl_trans_pcie_rf_kill(struct iwl_trans *trans, bool state)
 		 state ? "disabled" : "enabled");
 	if (iwl_op_mode_hw_rf_kill(trans->op_mode, state)) {
 		if (trans->cfg->gen2)
-			_iwl_trans_pcie_gen2_stop_device(trans, true);
+			_iwl_trans_pcie_gen2_stop_device(trans);
 		else
-			_iwl_trans_pcie_stop_device(trans, true);
+			_iwl_trans_pcie_stop_device(trans);
 	}
 }
 
@@ -1733,7 +1732,7 @@ static int iwl_trans_pcie_clear_persistence_bit(struct iwl_trans *trans)
 	return 0;
 }
 
-static int _iwl_trans_pcie_start_hw(struct iwl_trans *trans, bool low_power)
+static int _iwl_trans_pcie_start_hw(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int err;
@@ -1769,20 +1768,16 @@ static int _iwl_trans_pcie_start_hw(struct iwl_trans *trans, bool low_power)
 	/* ...rfkill can call stop_device and set it false if needed */
 	iwl_pcie_check_hw_rf_kill(trans);
 
-	/* Make sure we sync here, because we'll need full access later */
-	if (low_power)
-		pm_runtime_resume(trans->dev);
-
 	return 0;
 }
 
-static int iwl_trans_pcie_start_hw(struct iwl_trans *trans, bool low_power)
+static int iwl_trans_pcie_start_hw(struct iwl_trans *trans)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int ret;
 
 	mutex_lock(&trans_pcie->mutex);
-	ret = _iwl_trans_pcie_start_hw(trans, low_power);
+	ret = _iwl_trans_pcie_start_hw(trans);
 	mutex_unlock(&trans_pcie->mutex);
 
 	return ret;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
index cee507d29238..6c19711d5a10 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
@@ -50,7 +50,6 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  *****************************************************************************/
-#include <linux/pm_runtime.h>
 #include <net/tso.h>
 #include <linux/tcp.h>
 
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 9432374b69e2..8b7b918e71ad 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -65,7 +65,6 @@
 #include <linux/ieee80211.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
-#include <linux/pm_runtime.h>
 #include <net/ip6_checksum.h>
 #include <net/tso.h>
 
-- 
2.23.0.rc1

[PATCH 12/18] iwlwifi: scan: don't pass large argument by value

[Luca Coelho]

From: Ayala Beker <ayala.beker@intel.com>

Function iwl_mvm_scan_set_legacy_probe_req() second argument
size is too large to be passed by value.
Fix it to be passed by reference.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index 85e33310804e..afa44345f37b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -961,15 +961,15 @@ static int iwl_mvm_scan_lmac_flags(struct iwl_mvm *mvm,
 
 static void
 iwl_mvm_scan_set_legacy_probe_req(struct iwl_scan_probe_req_v1 *p_req,
-				  struct iwl_scan_probe_req src_p_req)
+				  struct iwl_scan_probe_req *src_p_req)
 {
 	int i;
 
-	p_req->mac_header = src_p_req.mac_header;
+	p_req->mac_header = src_p_req->mac_header;
 	for (i = 0; i < SCAN_NUM_BAND_PROBE_DATA_V_1; i++)
-		p_req->band_data[i] = src_p_req.band_data[i];
-	p_req->common_data = src_p_req.common_data;
-	memcpy(p_req->buf, src_p_req.buf, SCAN_OFFLOAD_PROBE_REQ_SIZE);
+		p_req->band_data[i] = src_p_req->band_data[i];
+	p_req->common_data = src_p_req->common_data;
+	memcpy(p_req->buf, src_p_req->buf, sizeof(p_req->buf));
 }
 
 static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
@@ -1046,7 +1046,7 @@ static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	iwl_mvm_lmac_scan_cfg_channels(mvm, params->channels,
 				       params->n_channels, ssid_bitmap, cmd);
 
-	iwl_mvm_scan_set_legacy_probe_req(preq, params->preq);
+	iwl_mvm_scan_set_legacy_probe_req(preq, &params->preq);
 
 	return 0;
 }
@@ -1592,7 +1592,8 @@ static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		direct_scan = tail_v2->direct_scan;
 	} else {
 		tail_v1 = (struct iwl_scan_req_umac_tail_v1 *)sec_part;
-		iwl_mvm_scan_set_legacy_probe_req(&tail_v1->preq, params->preq);
+		iwl_mvm_scan_set_legacy_probe_req(&tail_v1->preq,
+						  &params->preq);
 		direct_scan = tail_v1->direct_scan;
 	}
 	iwl_scan_build_ssids(params, direct_scan, &ssid_bitmap);
-- 
2.23.0.rc1

[PATCH 13/18] iwlwifi: dbg_ini: align dbg tlv functions names to a single format

[Luca Coelho]

From: Shahar S Matityahu <shahar.s.matityahu@intel.com>

align the naming to iwl_dbg_tlv_*

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.c  | 20 +++++++++----------
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.h  | 14 ++++++-------
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c  | 10 +++++-----
 3 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index fcaec410b3be..240e48b1d1c7 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -63,8 +63,8 @@
 #include "iwl-trans.h"
 #include "iwl-dbg-tlv.h"
 
-void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
-			 bool ext)
+void iwl_dbg_tlv_copy(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
+		      bool ext)
 {
 	struct iwl_apply_point_data *data;
 	struct iwl_fw_ini_header *header = (void *)&tlv->data[0];
@@ -106,7 +106,7 @@ void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
 	data->offset += offset_size;
 }
 
-void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data,
+void iwl_dbg_tlv_alloc(struct iwl_trans *trans, size_t len, const u8 *data,
 		       bool ext)
 {
 	struct iwl_ucode_tlv *tlv;
@@ -183,7 +183,7 @@ void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data,
 	}
 }
 
-void iwl_fw_dbg_free(struct iwl_trans *trans)
+void iwl_dbg_tlv_free(struct iwl_trans *trans)
 {
 	int i;
 
@@ -198,8 +198,8 @@ void iwl_fw_dbg_free(struct iwl_trans *trans)
 	}
 }
 
-static int iwl_parse_fw_dbg_tlv(struct iwl_trans *trans, const u8 *data,
-				size_t len)
+static int iwl_dbg_tlv_parse_bin(struct iwl_trans *trans, const u8 *data,
+				 size_t len)
 {
 	struct iwl_ucode_tlv *tlv;
 	enum iwl_ucode_tlv_type tlv_type;
@@ -227,7 +227,7 @@ static int iwl_parse_fw_dbg_tlv(struct iwl_trans *trans, const u8 *data,
 		case IWL_UCODE_TLV_TYPE_REGIONS:
 		case IWL_UCODE_TLV_TYPE_TRIGGERS:
 		case IWL_UCODE_TLV_TYPE_DEBUG_FLOW:
-			iwl_fw_dbg_copy_tlv(trans, tlv, true);
+			iwl_dbg_tlv_copy(trans, tlv, true);
 			break;
 		default:
 			WARN_ONCE(1, "Invalid TLV %x\n", tlv_type);
@@ -238,7 +238,7 @@ static int iwl_parse_fw_dbg_tlv(struct iwl_trans *trans, const u8 *data,
 	return 0;
 }
 
-void iwl_load_fw_dbg_tlv(struct device *dev, struct iwl_trans *trans)
+void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans)
 {
 	const struct firmware *fw;
 	int res;
@@ -250,8 +250,8 @@ void iwl_load_fw_dbg_tlv(struct device *dev, struct iwl_trans *trans)
 	if (res)
 		return;
 
-	iwl_alloc_dbg_tlv(trans, fw->size, fw->data, true);
-	iwl_parse_fw_dbg_tlv(trans, fw->data, fw->size);
+	iwl_dbg_tlv_alloc(trans, fw->size, fw->data, true);
+	iwl_dbg_tlv_parse_bin(trans, fw->data, fw->size);
 
 	trans->dbg.external_ini_loaded = true;
 	release_firmware(fw);
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
index 222cd789e07a..e4911ec6ce13 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
@@ -5,7 +5,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright (C) 2018 Intel Corporation
+ * Copyright (C) 2018 - 2019 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -28,7 +28,7 @@
  *
  * BSD LICENSE
  *
- * Copyright (C) 2018 Intel Corporation
+ * Copyright (C) 2018 - 2019 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -77,11 +77,11 @@ struct iwl_apply_point_data {
 };
 
 struct iwl_trans;
-void iwl_load_fw_dbg_tlv(struct device *dev, struct iwl_trans *trans);
-void iwl_fw_dbg_free(struct iwl_trans *trans);
-void iwl_fw_dbg_copy_tlv(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
-			 bool ext);
-void iwl_alloc_dbg_tlv(struct iwl_trans *trans, size_t len, const u8 *data,
+void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans);
+void iwl_dbg_tlv_free(struct iwl_trans *trans);
+void iwl_dbg_tlv_copy(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
+		      bool ext);
+void iwl_dbg_tlv_alloc(struct iwl_trans *trans, size_t len, const u8 *data,
 		       bool ext);
 
 #endif /* __iwl_dbg_tlv_h__*/
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 7afc6e43502a..595dc2fbc3b3 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -648,7 +648,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 	len -= sizeof(*ucode);
 
 	if (iwlwifi_mod_params.enable_ini)
-		iwl_alloc_dbg_tlv(drv->trans, len, data, false);
+		iwl_dbg_tlv_alloc(drv->trans, len, data, false);
 
 	while (len >= sizeof(*tlv)) {
 		len -= sizeof(*tlv);
@@ -1156,7 +1156,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 		case IWL_UCODE_TLV_TYPE_TRIGGERS:
 		case IWL_UCODE_TLV_TYPE_DEBUG_FLOW:
 			if (iwlwifi_mod_params.enable_ini)
-				iwl_fw_dbg_copy_tlv(drv->trans, tlv, false);
+				iwl_dbg_tlv_copy(drv->trans, tlv, false);
 			break;
 		case IWL_UCODE_TLV_CMD_VERSIONS:
 			if (tlv_len % sizeof(struct iwl_fw_cmd_version)) {
@@ -1640,7 +1640,7 @@ struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
 	init_completion(&drv->request_firmware_complete);
 	INIT_LIST_HEAD(&drv->list);
 
-	iwl_load_fw_dbg_tlv(drv->trans->dev, drv->trans);
+	iwl_dbg_tlv_load_bin(drv->trans->dev, drv->trans);
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	/* Create the device debugfs entries. */
@@ -1662,8 +1662,8 @@ struct iwl_drv *iwl_drv_start(struct iwl_trans *trans)
 err_fw:
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	debugfs_remove_recursive(drv->dbgfs_drv);
+	iwl_dbg_tlv_free(drv->trans);
 #endif
-	iwl_fw_dbg_free(drv->trans);
 	kfree(drv);
 err:
 	return ERR_PTR(ret);
@@ -1693,7 +1693,7 @@ void iwl_drv_stop(struct iwl_drv *drv)
 	debugfs_remove_recursive(drv->dbgfs_drv);
 #endif
 
-	iwl_fw_dbg_free(drv->trans);
+	iwl_dbg_tlv_free(drv->trans);
 
 	kfree(drv);
 }
-- 
2.23.0.rc1

[PATCH 14/18] iwlwifi: remove unused regdb_ptrs allocation

[Luca Coelho]

From: Haim Dreyfuss <haim.dreyfuss@intel.com>

regdb_ptrs is not in used anymore, remove it.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index d87a6bb3e456..fd386bfbd5df 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -1066,11 +1066,6 @@ static u32 iwl_nvm_get_regdom_bw_flags(const u16 *nvm_chan,
 	return flags;
 }
 
-struct regdb_ptrs {
-	struct ieee80211_wmm_rule *rule;
-	u32 token;
-};
-
 struct ieee80211_regdomain *
 iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 		       int num_of_ch, __le32 *channels, u16 fw_mcc,
@@ -1082,7 +1077,6 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 	const u16 *nvm_chan;
 	struct ieee80211_regdomain *regd, *copy_rd;
 	struct ieee80211_reg_rule *rule;
-	struct regdb_ptrs *regdb_ptrs;
 	enum nl80211_band band;
 	int center_freq, prev_center_freq = 0;
 	int valid_rules = 0;
@@ -1114,12 +1108,6 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 	if (!regd)
 		return ERR_PTR(-ENOMEM);
 
-	regdb_ptrs = kcalloc(num_of_ch, sizeof(*regdb_ptrs), GFP_KERNEL);
-	if (!regdb_ptrs) {
-		copy_rd = ERR_PTR(-ENOMEM);
-		goto out;
-	}
-
 	/* set alpha2 from FW. */
 	regd->alpha2[0] = fw_mcc >> 8;
 	regd->alpha2[1] = fw_mcc & 0xff;
@@ -1191,8 +1179,6 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 	if (!copy_rd)
 		copy_rd = ERR_PTR(-ENOMEM);
 
-out:
-	kfree(regdb_ptrs);
 	kfree(regd);
 	return copy_rd;
 }
-- 
2.23.0.rc1

[PATCH 15/18] iwlwifi: dbg: add debug periphery registers to 9000 device family

[Luca Coelho]

From: Shahar S Matityahu <shahar.s.matityahu@intel.com>

Add debug HW periphery registers to 9000 device family.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 34f4cda3b090..40b867f984cf 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -468,6 +468,9 @@ static const struct iwl_prph_range iwl_prph_dump_addr_9000[] = {
 	{ .start = 0x00a05400, .end = 0x00a056e8 },
 	{ .start = 0x00a08000, .end = 0x00a098bc },
 	{ .start = 0x00a02400, .end = 0x00a02758 },
+	{ .start = 0x00a04764, .end = 0x00a0476c },
+	{ .start = 0x00a04770, .end = 0x00a04774 },
+	{ .start = 0x00a04620, .end = 0x00a04624 },
 };
 
 static const struct iwl_prph_range iwl_prph_dump_addr_22000[] = {
-- 
2.23.0.rc1

[PATCH 16/18] iwlwifi: dbg_ini: maintain buffer allocations from trans instead of TLVs buffer

[Luca Coelho]

From: Shahar S Matityahu <shahar.s.matityahu@intel.com>

Maintain DRAM debug buffer status in trans instead of keeping it as
part of the TLVs buffer to avoid allocating extra space for it.
Needed for future changes.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../wireless/intel/iwlwifi/fw/api/dbg-tlv.h   |  2 ++
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c   | 31 ++++++++++---------
 drivers/net/wireless/intel/iwlwifi/fw/img.h   |  9 ------
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.c  | 18 -----------
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |  4 ++-
 5 files changed, 21 insertions(+), 43 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
index aaf3974a9a20..e02e289d29b1 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
@@ -439,6 +439,7 @@ enum iwl_fw_ini_apply_point {
  * @IWL_FW_INI_ALLOCATION_ID_SDFX: for SDFX module
  * @IWL_FW_INI_ALLOCATION_ID_FW_DUMP: used for crash and runtime dumps
  * @IWL_FW_INI_ALLOCATION_ID_USER_DEFINED: for future user scenarios
+ * @IWL_FW_INI_ALLOCATION_NUM: number of allocation ids
 */
 enum iwl_fw_ini_allocation_id {
 	IWL_FW_INI_ALLOCATION_INVALID,
@@ -448,6 +449,7 @@ enum iwl_fw_ini_allocation_id {
 	IWL_FW_INI_ALLOCATION_ID_SDFX,
 	IWL_FW_INI_ALLOCATION_ID_FW_DUMP,
 	IWL_FW_INI_ALLOCATION_ID_USER_DEFINED,
+	IWL_FW_INI_ALLOCATION_NUM,
 }; /* FW_DEBUG_TLV_ALLOCATION_ID_E_VER_1 */
 
 /**
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 40b867f984cf..6d69ed17e7f8 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -2503,7 +2503,7 @@ iwl_fw_dbg_buffer_allocation(struct iwl_fw_runtime *fwrt, u32 size)
 }
 
 static void iwl_fw_dbg_buffer_apply(struct iwl_fw_runtime *fwrt,
-				    struct iwl_fw_ini_allocation_data *alloc,
+				    struct iwl_fw_ini_allocation_tlv *alloc,
 				    enum iwl_fw_ini_apply_point pnt)
 {
 	struct iwl_trans *trans = fwrt->trans;
@@ -2518,7 +2518,14 @@ static void iwl_fw_dbg_buffer_apply(struct iwl_fw_runtime *fwrt,
 		.len[0] = sizeof(ldbg_cmd),
 	};
 	int block_idx = trans->dbg.num_blocks;
-	u32 buf_location = le32_to_cpu(alloc->tlv.buffer_location);
+	u32 buf_location = le32_to_cpu(alloc->buffer_location);
+	u32 alloc_id = le32_to_cpu(alloc->allocation_id);
+
+	if (alloc_id <= IWL_FW_INI_ALLOCATION_INVALID ||
+	    alloc_id >= IWL_FW_INI_ALLOCATION_NUM) {
+		IWL_ERR(fwrt, "WRT: Invalid allocation id %d\n", alloc_id);
+		return;
+	}
 
 	if (fwrt->trans->dbg.ini_dest == IWL_FW_INI_LOCATION_INVALID)
 		fwrt->trans->dbg.ini_dest = buf_location;
@@ -2543,12 +2550,11 @@ static void iwl_fw_dbg_buffer_apply(struct iwl_fw_runtime *fwrt,
 	if (buf_location != IWL_FW_INI_LOCATION_DRAM_PATH)
 		return;
 
-	if (!alloc->is_alloc) {
-		iwl_fw_dbg_buffer_allocation(fwrt,
-					     le32_to_cpu(alloc->tlv.size));
+	if (!(BIT(alloc_id) & fwrt->trans->dbg.is_alloc)) {
+		iwl_fw_dbg_buffer_allocation(fwrt, le32_to_cpu(alloc->size));
 		if (block_idx == trans->dbg.num_blocks)
 			return;
-		alloc->is_alloc = 1;
+		fwrt->trans->dbg.is_alloc |= BIT(alloc_id);
 	}
 
 	/* First block is assigned via registers / context info */
@@ -2561,9 +2567,9 @@ static void iwl_fw_dbg_buffer_apply(struct iwl_fw_runtime *fwrt,
 	cmd->num_frags = cpu_to_le32(1);
 	cmd->fragments[0].address =
 		cpu_to_le64(trans->dbg.fw_mon[block_idx].physical);
-	cmd->fragments[0].size = alloc->tlv.size;
-	cmd->allocation_id = alloc->tlv.allocation_id;
-	cmd->buffer_location = alloc->tlv.buffer_location;
+	cmd->fragments[0].size = alloc->size;
+	cmd->allocation_id = alloc->allocation_id;
+	cmd->buffer_location = alloc->buffer_location;
 
 	iwl_trans_send_cmd(trans, &hcmd);
 }
@@ -2788,20 +2794,15 @@ static void _iwl_fw_dbg_apply_point(struct iwl_fw_runtime *fwrt,
 		case IWL_UCODE_TLV_TYPE_DEBUG_INFO:
 			iwl_fw_dbg_info_apply(fwrt, ini_tlv, ext, pnt);
 			break;
-		case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION: {
-			struct iwl_fw_ini_allocation_data *buf_alloc = ini_tlv;
-
+		case IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION:
 			if (pnt != IWL_FW_INI_APPLY_EARLY) {
 				IWL_ERR(fwrt,
 					"WRT: ext=%d. Invalid apply point %d for buffer allocation\n",
 					ext, pnt);
 				goto next;
 			}
-
 			iwl_fw_dbg_buffer_apply(fwrt, ini_tlv, pnt);
-			iter += sizeof(buf_alloc->is_alloc);
 			break;
-		}
 		case IWL_UCODE_TLV_TYPE_HCMD:
 			if (pnt < IWL_FW_INI_APPLY_AFTER_ALIVE) {
 				IWL_ERR(fwrt,
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/img.h b/drivers/net/wireless/intel/iwlwifi/fw/img.h
index 18ca5f152be6..039576d71276 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/img.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/img.h
@@ -227,15 +227,6 @@ struct iwl_fw_dbg {
 	u32 dump_mask;
 };
 
-/**
- * @tlv: the buffer allocation tlv
- * @is_alloc: indicates if the buffer was already allocated
- */
-struct iwl_fw_ini_allocation_data {
-	struct iwl_fw_ini_allocation_tlv tlv;
-	u32 is_alloc;
-} __packed;
-
 /**
  * struct iwl_fw_ini_active_triggers
  * @active: is this trigger active
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index 240e48b1d1c7..5948d769eed0 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -85,14 +85,6 @@ void iwl_dbg_tlv_copy(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
 	else
 		data = &trans->dbg.apply_points[apply_point];
 
-	/* add room for is_alloc field in &iwl_fw_ini_allocation_data struct */
-	if (le32_to_cpu(tlv->type) == IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION) {
-		struct iwl_fw_ini_allocation_data *buf_alloc =
-			(void *)tlv->data;
-
-		offset_size += sizeof(buf_alloc->is_alloc);
-	}
-
 	/*
 	 * Make sure we still have room to copy this TLV. Offset points to the
 	 * location the last copy ended.
@@ -145,16 +137,6 @@ void iwl_dbg_tlv_alloc(struct iwl_trans *trans, size_t len, const u8 *data,
 		if (WARN_ON(apply >= IWL_FW_INI_APPLY_NUM))
 			continue;
 
-		/* add room for is_alloc field in &iwl_fw_ini_allocation_data
-		 * struct
-		 */
-		if (tlv_type == IWL_UCODE_TLV_TYPE_BUFFER_ALLOCATION) {
-			struct iwl_fw_ini_allocation_data *buf_alloc =
-				(void *)tlv->data;
-
-			size[apply] += sizeof(buf_alloc->is_alloc);
-		}
-
 		size[apply] += sizeof(*tlv) + tlv_len;
 	}
 
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index fce0112b3ad4..0fa4b100f109 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -695,6 +695,7 @@ struct iwl_self_init_dram {
  * @ini_valid: indicates if debug ini mode is on
  * @num_blocks: number of blocks in fw_mon
  * @fw_mon: address of the buffers for firmware monitor
+ * @is_alloc: bit i is set if buffer i was allocated
  * @hw_error: equals true if hw error interrupt was received from the FW
  * @ini_dest: debug monitor destination uses &enum iwl_fw_ini_buffer_location
  */
@@ -717,7 +718,8 @@ struct iwl_trans_debug {
 	struct iwl_apply_point_data apply_points_ext[IWL_FW_INI_APPLY_NUM];
 
 	int num_blocks;
-	struct iwl_dram_data fw_mon[IWL_FW_INI_APPLY_NUM];
+	struct iwl_dram_data fw_mon[IWL_FW_INI_ALLOCATION_NUM];
+	u32 is_alloc;
 
 	bool hw_error;
 	enum iwl_fw_ini_buffer_location ini_dest;
-- 
2.23.0.rc1

[PATCH 17/18] iwlwifi: dbg_ini: use linked list to store debug TLVs

[Luca Coelho]

From: Shahar S Matityahu <shahar.s.matityahu@intel.com>

Use a linked list to maintain the debug TLVs instead of a single buffer.
This way, the driver does not need to iterate over the binary file twice
and allocates smaller chunks of memory. Also, in case one allocation
fails the driver will work with the partial configuration instead of
aborting the entire debug configuration.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c   |  15 ++-
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.c  | 121 ++++++------------
 .../net/wireless/intel/iwlwifi/iwl-dbg-tlv.h  |  12 +-
 drivers/net/wireless/intel/iwlwifi/iwl-drv.c  |   3 -
 4 files changed, 49 insertions(+), 102 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 6d69ed17e7f8..78e13cd182cb 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -2783,10 +2783,13 @@ static void _iwl_fw_dbg_apply_point(struct iwl_fw_runtime *fwrt,
 				    enum iwl_fw_ini_apply_point pnt,
 				    bool ext)
 {
-	void *iter = data->data;
+	struct iwl_apply_point_data *iter;
 
-	while (iter && iter < data->data + data->size) {
-		struct iwl_ucode_tlv *tlv = iter;
+	if (!data->list.next)
+		return;
+
+	list_for_each_entry(iter, &data->list, list) {
+		struct iwl_ucode_tlv *tlv = &iter->tlv;
 		void *ini_tlv = (void *)tlv->data;
 		u32 type = le32_to_cpu(tlv->type);
 
@@ -2799,7 +2802,7 @@ static void _iwl_fw_dbg_apply_point(struct iwl_fw_runtime *fwrt,
 				IWL_ERR(fwrt,
 					"WRT: ext=%d. Invalid apply point %d for buffer allocation\n",
 					ext, pnt);
-				goto next;
+				break;
 			}
 			iwl_fw_dbg_buffer_apply(fwrt, ini_tlv, pnt);
 			break;
@@ -2808,7 +2811,7 @@ static void _iwl_fw_dbg_apply_point(struct iwl_fw_runtime *fwrt,
 				IWL_ERR(fwrt,
 					"WRT: ext=%d. Invalid apply point %d for host command\n",
 					ext, pnt);
-				goto next;
+				break;
 			}
 			iwl_fw_dbg_send_hcmd(fwrt, tlv, ext);
 			break;
@@ -2826,8 +2829,6 @@ static void _iwl_fw_dbg_apply_point(struct iwl_fw_runtime *fwrt,
 				  ext, type);
 			break;
 		}
-next:
-		iter += sizeof(*tlv) + le32_to_cpu(tlv->length);
 	}
 }
 
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index 5948d769eed0..7c1e76ee7ede 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -66,102 +66,56 @@
 void iwl_dbg_tlv_copy(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
 		      bool ext)
 {
-	struct iwl_apply_point_data *data;
+	struct iwl_apply_point_data *dbg_cfg, *tlv_copy;
 	struct iwl_fw_ini_header *header = (void *)&tlv->data[0];
+	u32 tlv_type = le32_to_cpu(tlv->type);
+	u32 len = le32_to_cpu(tlv->length);
 	u32 apply_point = le32_to_cpu(header->apply_point);
 
-	int copy_size = le32_to_cpu(tlv->length) + sizeof(*tlv);
-	int offset_size = copy_size;
-
 	if (le32_to_cpu(header->tlv_version) != 1)
 		return;
 
 	if (WARN_ONCE(apply_point >= IWL_FW_INI_APPLY_NUM,
-		      "Invalid apply point id %d\n", apply_point))
+		      "Invalid apply point %d\n", apply_point))
 		return;
 
+	IWL_DEBUG_FW(trans, "WRT: read TLV 0x%x, apply point %d\n",
+		     tlv_type, apply_point);
+
 	if (ext)
-		data = &trans->dbg.apply_points_ext[apply_point];
+		dbg_cfg = &trans->dbg.apply_points_ext[apply_point];
 	else
-		data = &trans->dbg.apply_points[apply_point];
-
-	/*
-	 * Make sure we still have room to copy this TLV. Offset points to the
-	 * location the last copy ended.
-	 */
-	if (WARN_ONCE(data->offset + offset_size > data->size,
-		      "Not enough memory for apply point %d\n",
-		      apply_point))
-		return;
-
-	memcpy(data->data + data->offset, (void *)tlv, copy_size);
-	data->offset += offset_size;
-}
-
-void iwl_dbg_tlv_alloc(struct iwl_trans *trans, size_t len, const u8 *data,
-		       bool ext)
-{
-	struct iwl_ucode_tlv *tlv;
-	u32 size[IWL_FW_INI_APPLY_NUM] = {0};
-	int i;
-
-	while (len >= sizeof(*tlv)) {
-		u32 tlv_len, tlv_type, apply;
-		struct iwl_fw_ini_header *hdr;
-
-		len -= sizeof(*tlv);
-		tlv = (void *)data;
-
-		tlv_len = le32_to_cpu(tlv->length);
-		tlv_type = le32_to_cpu(tlv->type);
+		dbg_cfg = &trans->dbg.apply_points[apply_point];
 
-		if (len < tlv_len)
-			return;
-
-		len -= ALIGN(tlv_len, 4);
-		data += sizeof(*tlv) + ALIGN(tlv_len, 4);
-
-		if (tlv_type < IWL_UCODE_TLV_DEBUG_BASE ||
-		    tlv_type > IWL_UCODE_TLV_DEBUG_MAX)
-			continue;
-
-		hdr = (void *)&tlv->data[0];
-		apply = le32_to_cpu(hdr->apply_point);
-
-		if (le32_to_cpu(hdr->tlv_version) != 1)
-			continue;
-
-		IWL_DEBUG_FW(trans, "WRT: read TLV 0x%x, apply point %d\n",
-			     le32_to_cpu(tlv->type), apply);
-
-		if (WARN_ON(apply >= IWL_FW_INI_APPLY_NUM))
-			continue;
-
-		size[apply] += sizeof(*tlv) + tlv_len;
+	tlv_copy = kzalloc(sizeof(*tlv_copy) + len, GFP_KERNEL);
+	if (!tlv_copy) {
+		IWL_ERR(trans, "WRT: No memory for TLV 0x%x, apply point %d\n",
+			tlv_type, apply_point);
+		return;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(size); i++) {
-		void *mem;
+	INIT_LIST_HEAD(&tlv_copy->list);
+	memcpy(&tlv_copy->tlv, tlv, sizeof(*tlv) + len);
 
-		if (!size[i])
-			continue;
+	if (!dbg_cfg->list.next)
+		INIT_LIST_HEAD(&dbg_cfg->list);
 
-		mem = kzalloc(size[i], GFP_KERNEL);
+	list_add_tail(&tlv_copy->list, &dbg_cfg->list);
 
-		if (!mem) {
-			IWL_ERR(trans, "No memory for apply point %d\n", i);
-			return;
-		}
+	trans->dbg.ini_valid = true;
+}
 
-		if (ext) {
-			trans->dbg.apply_points_ext[i].data = mem;
-			trans->dbg.apply_points_ext[i].size = size[i];
-		} else {
-			trans->dbg.apply_points[i].data = mem;
-			trans->dbg.apply_points[i].size = size[i];
-		}
+static void iwl_dbg_tlv_free_list(struct list_head *list)
+{
+	if (!list || !list->next)
+		return;
 
-		trans->dbg.ini_valid = true;
+	while (!list_empty(list)) {
+		struct iwl_apply_point_data *node =
+			list_entry(list->next, typeof(*node), list);
+
+		list_del(&node->list);
+		kfree(node);
 	}
 }
 
@@ -170,13 +124,13 @@ void iwl_dbg_tlv_free(struct iwl_trans *trans)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(trans->dbg.apply_points); i++) {
-		kfree(trans->dbg.apply_points[i].data);
-		trans->dbg.apply_points[i].size = 0;
-		trans->dbg.apply_points[i].offset = 0;
+		struct iwl_apply_point_data *data;
+
+		data = &trans->dbg.apply_points[i];
+		iwl_dbg_tlv_free_list(&data->list);
 
-		kfree(trans->dbg.apply_points_ext[i].data);
-		trans->dbg.apply_points_ext[i].size = 0;
-		trans->dbg.apply_points_ext[i].offset = 0;
+		data = &trans->dbg.apply_points_ext[i];
+		iwl_dbg_tlv_free_list(&data->list);
 	}
 }
 
@@ -232,7 +186,6 @@ void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans)
 	if (res)
 		return;
 
-	iwl_dbg_tlv_alloc(trans, fw->size, fw->data, true);
 	iwl_dbg_tlv_parse_bin(trans, fw->data, fw->size);
 
 	trans->dbg.external_ini_loaded = true;
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
index e4911ec6ce13..72552de801d4 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.h
@@ -66,14 +66,12 @@
 
 /**
  * struct iwl_apply_point_data
- * @data: start address of this apply point data
- * @size total size of the data
- * @offset: current offset of the copied data
+ * @list: list to go through the TLVs of the apply point
+ * @tlv: a debug TLV
  */
 struct iwl_apply_point_data {
-	void *data;
-	int size;
-	int offset;
+	struct list_head list;
+	struct iwl_ucode_tlv tlv;
 };
 
 struct iwl_trans;
@@ -81,7 +79,5 @@ void iwl_dbg_tlv_load_bin(struct device *dev, struct iwl_trans *trans);
 void iwl_dbg_tlv_free(struct iwl_trans *trans);
 void iwl_dbg_tlv_copy(struct iwl_trans *trans, struct iwl_ucode_tlv *tlv,
 		      bool ext);
-void iwl_dbg_tlv_alloc(struct iwl_trans *trans, size_t len, const u8 *data,
-		       bool ext);
 
 #endif /* __iwl_dbg_tlv_h__*/
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index 595dc2fbc3b3..3792b421746e 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -647,9 +647,6 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 
 	len -= sizeof(*ucode);
 
-	if (iwlwifi_mod_params.enable_ini)
-		iwl_dbg_tlv_alloc(drv->trans, len, data, false);
-
 	while (len >= sizeof(*tlv)) {
 		len -= sizeof(*tlv);
 		tlv = (void *)data;
-- 
2.23.0.rc1

[PATCH 18/18] iwlwifi: dbg_ini: remove periphery phy and aux regions handling

[Luca Coelho]

From: Shahar S Matityahu <shahar.s.matityahu@intel.com>

periphery phy and aux regions should not be collected like periphery mac
region. Remove their handling. The handling will be added in the future
once the FW will support it.

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Fixes: 7a14c23dcdee ("iwlwifi: dbg: dump data according to the new ini TLVs")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 78e13cd182cb..1aa880936121 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1908,8 +1908,6 @@ static void iwl_fw_ini_dump_trigger(struct iwl_fw_runtime *fwrt,
 			iwl_dump_ini_mem(fwrt, data, reg, &ops);
 			break;
 		case IWL_FW_INI_REGION_PERIPHERY_MAC:
-		case IWL_FW_INI_REGION_PERIPHERY_PHY:
-		case IWL_FW_INI_REGION_PERIPHERY_AUX:
 			ops.get_num_of_ranges =	iwl_dump_ini_mem_ranges;
 			ops.get_size = iwl_dump_ini_mem_get_size;
 			ops.fill_mem_hdr = iwl_dump_ini_mem_fill_header;
@@ -1974,6 +1972,8 @@ static void iwl_fw_ini_dump_trigger(struct iwl_fw_runtime *fwrt,
 			ops.fill_range = iwl_dump_ini_csr_iter;
 			iwl_dump_ini_mem(fwrt, data, reg, &ops);
 			break;
+		case IWL_FW_INI_REGION_PERIPHERY_PHY:
+		case IWL_FW_INI_REGION_PERIPHERY_AUX:
 		case IWL_FW_INI_REGION_DRAM_IMR:
 			/* This is undefined yet */
 		default:
-- 
2.23.0.rc1

Re: [PATCH 01/18] iwlwifi: mvm: ftm: make common calib signed

[Kalle Valo]

Luca Coelho <luca@coelho.fi> writes:

> From: Alex Malamud <alex.malamud@intel.com>
>
> The common calib value should be signed, so use int instead of u16.
>
> Signed-off-by: Avraham Stern <avraham.stern@intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

[...]

> @@ -1993,6 +2027,9 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
>  #endif
>  	MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
>  
> +	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
> +		MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);

The commit log does not seem to match the code?

-- 
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [PATCH 05/18] iwlwifi: Set w-pointer upon resume according to SN

[Kalle Valo]

Luca Coelho <luca@coelho.fi> writes:

> From: Alex Malamud <alex.malamud@intel.com>
>
> During D3 state, FW may send packets.
> As a result, "write" queue pointer will be incremented by FW.
> Upon resume from D3, driver should adjust its shadows of "write" and "read"
> pointers to the value reported by FW.
>
> 1. Keep TID used during wowlan configuration.
> 2. Upon resume, set driver's "write" and "read" queue pointers
> 	to the value reported by FW.
>
> Signed-off-by: Alex Malamud <alex.malamud@intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

A typo in the title, s/w-pointer/q-pointer/ maybe?

-- 
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [PATCH 05/18] iwlwifi: Set w-pointer upon resume according to SN

[Luca Coelho]

On Tue, 2019-09-03 at 14:26 +0300, Kalle Valo wrote:
> Luca Coelho <luca@coelho.fi> writes:
> 
> > From: Alex Malamud <alex.malamud@intel.com>
> > 
> > During D3 state, FW may send packets.
> > As a result, "write" queue pointer will be incremented by FW.
> > Upon resume from D3, driver should adjust its shadows of "write" and "read"
> > pointers to the value reported by FW.
> > 
> > 1. Keep TID used during wowlan configuration.
> > 2. Upon resume, set driver's "write" and "read" queue pointers
> > 	to the value reported by FW.
> > 
> > Signed-off-by: Alex Malamud <alex.malamud@intel.com>
> > Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
> 
> A typo in the title, s/w-pointer/q-pointer/ maybe?

This means "write pointer" because that's the one that is incremented
during WoWLAN.  The feature was called update write pointer or
something, that's where it comes from.

Do you want me to reword the subject?

--
Luca.

Re: [PATCH 05/18] iwlwifi: Set w-pointer upon resume according to SN

[Kalle Valo]

Luca Coelho <luca@coelho.fi> writes:

> On Tue, 2019-09-03 at 14:26 +0300, Kalle Valo wrote:
>> Luca Coelho <luca@coelho.fi> writes:
>> 
>> > From: Alex Malamud <alex.malamud@intel.com>
>> > 
>> > During D3 state, FW may send packets.
>> > As a result, "write" queue pointer will be incremented by FW.
>> > Upon resume from D3, driver should adjust its shadows of "write" and "read"
>> > pointers to the value reported by FW.
>> > 
>> > 1. Keep TID used during wowlan configuration.
>> > 2. Upon resume, set driver's "write" and "read" queue pointers
>> > 	to the value reported by FW.
>> > 
>> > Signed-off-by: Alex Malamud <alex.malamud@intel.com>
>> > Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
>> 
>> A typo in the title, s/w-pointer/q-pointer/ maybe?
>
> This means "write pointer" because that's the one that is incremented
> during WoWLAN.  The feature was called update write pointer or
> something, that's where it comes from.

Ok.

> Do you want me to reword the subject?

Nah, I was just curious because I couldn't figure out what that
"w-pointer" means and saw q-ptr (something like that) in the code.

-- 
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches