From 848955ccf0bdf42fff33e021a76f6daec98fe59b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 11 Nov 2014 12:48:42 +0100
Subject: mac80211: move U-APSD enablement to vif flags

In order to let drivers have more dynamic U-APSD support,
move the enablement flag to the virtual interface driver
flags. This lets drivers not only set it up differently
for different interfaces, but also enable/disable on the
fly if needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 31a5b3f4266c..346331d3c696 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -326,6 +326,8 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
 		IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
 	hw->rate_control_algorithm = "iwl-mvm-rs";
+	hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
+	hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
 
 	/*
 	 * Enable 11w if advertised by firmware and software crypto
@@ -336,13 +338,6 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	    !iwlwifi_mod_params.sw_crypto)
 		hw->flags |= IEEE80211_HW_MFP_CAPABLE;
 
-	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
-	    !iwlwifi_mod_params.uapsd_disable) {
-		hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
-		hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
-		hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
-	}
-
 	if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
 	    mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
 		hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
@@ -1147,6 +1142,10 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 		mvm->bf_allowed_vif = mvmvif;
 		vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
 				     IEEE80211_VIF_SUPPORTS_CQM_RSSI;
+		if (mvm->fw->ucode_capa.flags &
+					IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
+		    !iwlwifi_mod_params.uapsd_disable)
+			vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
 	}
 
 	/*
-- 
cgit v1.2.3


From e32ec12fd11fbccc1cb4656e34f35ad457e19e29 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 22 Oct 2014 11:22:56 +0200
Subject: iwlwifi: remove MODULE_VERSION

The module version "in-tree:" or "in-tree:d" is useless; there
should be better (functional) ways to detect whether debugging
is enabled and other than that the version says nothing.

Therefore remove the driver version completely.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/dvm/main.c | 14 --------------
 drivers/net/wireless/iwlwifi/iwl-drv.c  | 15 +--------------
 drivers/net/wireless/iwlwifi/iwl-drv.h  |  1 -
 drivers/net/wireless/iwlwifi/mvm/ops.c  |  7 -------
 4 files changed, 1 insertion(+), 36 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index 0b7f46f0b079..fcdc128298ea 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -64,22 +64,8 @@
  *
  ******************************************************************************/
 
-/*
- * module name, copyright, version, etc.
- */
 #define DRV_DESCRIPTION	"Intel(R) Wireless WiFi Link AGN driver for Linux"
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-#define VD "d"
-#else
-#define VD
-#endif
-
-#define DRV_VERSION     IWLWIFI_VERSION VD
-
-
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_VERSION(DRV_VERSION);
 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 38de1513e4de..36ae19134d11 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -84,21 +84,8 @@
  *
  ******************************************************************************/
 
-/*
- * module name, copyright, version, etc.
- */
 #define DRV_DESCRIPTION	"Intel(R) Wireless WiFi driver for Linux"
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-#define VD "d"
-#else
-#define VD
-#endif
-
-#define DRV_VERSION     IWLWIFI_VERSION VD
-
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_VERSION(DRV_VERSION);
 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 MODULE_LICENSE("GPL");
 
@@ -1492,7 +1479,7 @@ static int __init iwl_drv_init(void)
 	for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
 		INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
 
-	pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
+	pr_info(DRV_DESCRIPTION "\n");
 	pr_info(DRV_COPYRIGHT "\n");
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.h b/drivers/net/wireless/iwlwifi/iwl-drv.h
index be4f8972241a..adf522c756e6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.h
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.h
@@ -68,7 +68,6 @@
 
 /* for all modules */
 #define DRV_NAME        "iwlwifi"
-#define IWLWIFI_VERSION "in-tree:"
 #define DRV_COPYRIGHT	"Copyright(c) 2003- 2014 Intel Corporation"
 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 97dfba50c682..552a776962af 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -84,15 +84,8 @@
 #include "time-event.h"
 #include "iwl-fw-error-dump.h"
 
-/*
- * module name, copyright, version, etc.
- */
 #define DRV_DESCRIPTION	"The new Intel(R) wireless AGN driver for Linux"
-
-#define DRV_VERSION     IWLWIFI_VERSION
-
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_VERSION(DRV_VERSION);
 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
 MODULE_LICENSE("GPL");
 
-- 
cgit v1.2.3


From f53bf4c758c0fbe728c031621f4c5f9979cdb044 Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Mon, 1 Dec 2014 10:44:18 +0200
Subject: iwlwifi: mvm: add fw runtime stack to dump data

The allocation of the DCCM between the data and the stack
can theoretically change without notice to the driver, but
the total size is HW-fixed. Since the stack CCM (runtime
stack) has also data important to the FW - this patch allows
pulling the whole DCCM in one piece and adds it to the dump
data.

If the size isn't known - just use the data part of the
DCCM as it appears in the FW TLVs.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-7000.c     | 23 ++++++++++++++++++++++-
 drivers/net/wireless/iwlwifi/iwl-8000.c     |  8 +++++++-
 drivers/net/wireless/iwlwifi/iwl-config.h   |  4 ++++
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 15 +++++++++++----
 4 files changed, 44 insertions(+), 6 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c
index e5be2d21868f..9e76799c4750 100644
--- a/drivers/net/wireless/iwlwifi/iwl-7000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-7000.c
@@ -92,6 +92,12 @@
 #define IWL7265D_NVM_VERSION		0x0c11
 #define IWL7265_TX_POWER_VERSION	0xffff /* meaningless */
 
+/* DCCM offsets and lengths */
+#define IWL7000_DCCM_OFFSET		0x800000
+#define IWL7260_DCCM_LEN		0x14000
+#define IWL3160_DCCM_LEN		0x10000
+#define IWL7265_DCCM_LEN		0x17A00
+
 #define IWL7260_FW_PRE "iwlwifi-7260-"
 #define IWL7260_MODULE_FIRMWARE(api) IWL7260_FW_PRE __stringify(api) ".ucode"
 
@@ -138,7 +144,8 @@ static const struct iwl_ht_params iwl7000_ht_params = {
 	.led_mode = IWL_LED_RF_STATE,				\
 	.nvm_hw_section_num = NVM_HW_SECTION_NUM_FAMILY_7000,	\
 	.non_shared_ant = ANT_A,				\
-	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
+	.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K,	\
+	.dccm_offset = IWL7000_DCCM_OFFSET
 
 const struct iwl_cfg iwl7260_2ac_cfg = {
 	.name = "Intel(R) Dual Band Wireless AC 7260",
@@ -149,6 +156,7 @@ const struct iwl_cfg iwl7260_2ac_cfg = {
 	.nvm_calib_ver = IWL7260_TX_POWER_VERSION,
 	.host_interrupt_operation_mode = true,
 	.lp_xtal_workaround = true,
+	.dccm_len = IWL7260_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7260_2ac_cfg_high_temp = {
@@ -161,6 +169,7 @@ const struct iwl_cfg iwl7260_2ac_cfg_high_temp = {
 	.high_temp = true,
 	.host_interrupt_operation_mode = true,
 	.lp_xtal_workaround = true,
+	.dccm_len = IWL7260_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7260_2n_cfg = {
@@ -172,6 +181,7 @@ const struct iwl_cfg iwl7260_2n_cfg = {
 	.nvm_calib_ver = IWL7260_TX_POWER_VERSION,
 	.host_interrupt_operation_mode = true,
 	.lp_xtal_workaround = true,
+	.dccm_len = IWL7260_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7260_n_cfg = {
@@ -183,6 +193,7 @@ const struct iwl_cfg iwl7260_n_cfg = {
 	.nvm_calib_ver = IWL7260_TX_POWER_VERSION,
 	.host_interrupt_operation_mode = true,
 	.lp_xtal_workaround = true,
+	.dccm_len = IWL7260_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl3160_2ac_cfg = {
@@ -193,6 +204,7 @@ const struct iwl_cfg iwl3160_2ac_cfg = {
 	.nvm_ver = IWL3160_NVM_VERSION,
 	.nvm_calib_ver = IWL3160_TX_POWER_VERSION,
 	.host_interrupt_operation_mode = true,
+	.dccm_len = IWL3160_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl3160_2n_cfg = {
@@ -203,6 +215,7 @@ const struct iwl_cfg iwl3160_2n_cfg = {
 	.nvm_ver = IWL3160_NVM_VERSION,
 	.nvm_calib_ver = IWL3160_TX_POWER_VERSION,
 	.host_interrupt_operation_mode = true,
+	.dccm_len = IWL3160_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl3160_n_cfg = {
@@ -213,6 +226,7 @@ const struct iwl_cfg iwl3160_n_cfg = {
 	.nvm_ver = IWL3160_NVM_VERSION,
 	.nvm_calib_ver = IWL3160_TX_POWER_VERSION,
 	.host_interrupt_operation_mode = true,
+	.dccm_len = IWL3160_DCCM_LEN,
 };
 
 static const struct iwl_pwr_tx_backoff iwl7265_pwr_tx_backoffs[] = {
@@ -240,6 +254,7 @@ const struct iwl_cfg iwl3165_2ac_cfg = {
 	.nvm_ver = IWL3165_NVM_VERSION,
 	.nvm_calib_ver = IWL3165_TX_POWER_VERSION,
 	.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
+	.dccm_len = IWL7265_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7265_2ac_cfg = {
@@ -250,6 +265,7 @@ const struct iwl_cfg iwl7265_2ac_cfg = {
 	.nvm_ver = IWL7265_NVM_VERSION,
 	.nvm_calib_ver = IWL7265_TX_POWER_VERSION,
 	.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
+	.dccm_len = IWL7265_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7265_2n_cfg = {
@@ -260,6 +276,7 @@ const struct iwl_cfg iwl7265_2n_cfg = {
 	.nvm_ver = IWL7265_NVM_VERSION,
 	.nvm_calib_ver = IWL7265_TX_POWER_VERSION,
 	.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
+	.dccm_len = IWL7265_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7265_n_cfg = {
@@ -270,6 +287,7 @@ const struct iwl_cfg iwl7265_n_cfg = {
 	.nvm_ver = IWL7265_NVM_VERSION,
 	.nvm_calib_ver = IWL7265_TX_POWER_VERSION,
 	.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
+	.dccm_len = IWL7265_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7265d_2ac_cfg = {
@@ -280,6 +298,7 @@ const struct iwl_cfg iwl7265d_2ac_cfg = {
 	.nvm_ver = IWL7265D_NVM_VERSION,
 	.nvm_calib_ver = IWL7265_TX_POWER_VERSION,
 	.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
+	.dccm_len = IWL7265_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7265d_2n_cfg = {
@@ -290,6 +309,7 @@ const struct iwl_cfg iwl7265d_2n_cfg = {
 	.nvm_ver = IWL7265D_NVM_VERSION,
 	.nvm_calib_ver = IWL7265_TX_POWER_VERSION,
 	.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
+	.dccm_len = IWL7265_DCCM_LEN,
 };
 
 const struct iwl_cfg iwl7265d_n_cfg = {
@@ -300,6 +320,7 @@ const struct iwl_cfg iwl7265d_n_cfg = {
 	.nvm_ver = IWL7265D_NVM_VERSION,
 	.nvm_calib_ver = IWL7265_TX_POWER_VERSION,
 	.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
+	.dccm_len = IWL7265_DCCM_LEN,
 };
 
 MODULE_FIRMWARE(IWL7260_MODULE_FIRMWARE(IWL7260_UCODE_API_OK));
diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c
index bf0a95cb7153..6c5c55856a35 100644
--- a/drivers/net/wireless/iwlwifi/iwl-8000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-8000.c
@@ -81,6 +81,10 @@
 #define IWL8000_NVM_VERSION		0x0a1d
 #define IWL8000_TX_POWER_VERSION	0xffff /* meaningless */
 
+/* DCCM offsets and lengths */
+#define IWL8260_DCCM_OFFSET		0x800000
+#define IWL8260_DCCM_LEN		0x18000
+
 #define IWL8000_FW_PRE "iwlwifi-8000"
 #define IWL8000_MODULE_FIRMWARE(api) \
 	IWL8000_FW_PRE "-" __stringify(api) ".ucode"
@@ -124,7 +128,9 @@ static const struct iwl_ht_params iwl8000_ht_params = {
 	.led_mode = IWL_LED_RF_STATE,				\
 	.nvm_hw_section_num = NVM_HW_SECTION_NUM_FAMILY_8000,	\
 	.d0i3 = true,						\
-	.non_shared_ant = ANT_A
+	.non_shared_ant = ANT_A,				\
+	.dccm_offset = IWL8260_DCCM_OFFSET,			\
+	.dccm_len = IWL8260_DCCM_LEN
 
 const struct iwl_cfg iwl8260_2n_cfg = {
 	.name = "Intel(R) Dual Band Wireless N 8260",
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index 3a4b9c7fc083..31c67dfabf55 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -261,6 +261,8 @@ struct iwl_pwr_tx_backoff {
  *	station can receive in HT
  * @max_vht_ampdu_exponent: the exponent of the max length of A-MPDU that the
  *	station can receive in VHT
+ * @dccm_offset: offset from which DCCM begins
+ * @dccm_len: length of DCCM (including runtime stack CCM)
  *
  * We enable the driver to be backward compatible wrt. hardware features.
  * API differences in uCode shouldn't be handled here but through TLVs
@@ -303,6 +305,8 @@ struct iwl_cfg {
 	unsigned int max_tx_agg_size;
 	unsigned int max_ht_ampdu_exponent;
 	unsigned int max_vht_ampdu_exponent;
+	const u32 dccm_offset;
+	const u32 dccm_len;
 };
 
 /*
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 31a5b3f4266c..2d62b5617a56 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -767,7 +767,6 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	struct iwl_fw_error_dump_data *dump_data;
 	struct iwl_fw_error_dump_info *dump_info;
 	struct iwl_mvm_dump_ptrs *fw_error_dump;
-	const struct fw_img *img;
 	u32 sram_len, sram_ofs;
 	u32 file_len, rxf_len;
 	unsigned long flags;
@@ -779,9 +778,17 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	if (!fw_error_dump)
 		return;
 
-	img = &mvm->fw->img[mvm->cur_ucode];
-	sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
-	sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
+	/* SRAM - include stack CCM if driver knows the values for it */
+	if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
+		const struct fw_img *img;
+
+		img = &mvm->fw->img[mvm->cur_ucode];
+		sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
+		sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
+	} else {
+		sram_ofs = mvm->cfg->dccm_offset;
+		sram_len = mvm->cfg->dccm_len;
+	}
 
 	/* reading buffer size */
 	reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
-- 
cgit v1.2.3


From a054427244158552e91dacc0a4fc0a1b5e7342b9 Mon Sep 17 00:00:00 2001
From: Moshe Harel <moshe.harel@intel.com>
Date: Mon, 8 Dec 2014 21:13:14 +0200
Subject: iwlwifi: mvm: support LnP 1x1 antenna configuration

The antenna configuration has to be read also from OTP
Currently read only from FW image
Guideline: An antenna exists only if appears both in FW image & NVM

Signed-off-by: Moshe Harel <moshe.harel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-nvm-parse.c |  6 ++++++
 drivers/net/wireless/iwlwifi/mvm/debugfs.c   |  2 +-
 drivers/net/wireless/iwlwifi/mvm/fw.c        |  8 ++++----
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c  |  2 +-
 drivers/net/wireless/iwlwifi/mvm/mvm.h       | 27 +++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/ops.c       | 15 ++++++++-------
 drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c  |  2 +-
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 22 +++++++++++-----------
 drivers/net/wireless/iwlwifi/mvm/scan.c      |  6 +++---
 drivers/net/wireless/iwlwifi/mvm/tx.c        |  2 +-
 drivers/net/wireless/iwlwifi/mvm/utils.c     |  4 ++--
 11 files changed, 65 insertions(+), 31 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
index 06e02fcd6f7b..c74f1a4edf23 100644
--- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
@@ -468,6 +468,8 @@ static void iwl_set_radio_cfg(const struct iwl_cfg *cfg,
 	data->radio_cfg_step = NVM_RF_CFG_STEP_MSK_FAMILY_8000(radio_cfg);
 	data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK_FAMILY_8000(radio_cfg);
 	data->radio_cfg_pnum = NVM_RF_CFG_FLAVOR_MSK_FAMILY_8000(radio_cfg);
+	data->valid_tx_ant = NVM_RF_CFG_TX_ANT_MSK_FAMILY_8000(radio_cfg);
+	data->valid_rx_ant = NVM_RF_CFG_RX_ANT_MSK_FAMILY_8000(radio_cfg);
 }
 
 static void iwl_set_hw_address(const struct iwl_cfg *cfg,
@@ -592,6 +594,10 @@ iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
 
 	radio_cfg = iwl_get_radio_cfg(cfg, nvm_sw);
 	iwl_set_radio_cfg(cfg, data, radio_cfg);
+	if (data->valid_tx_ant)
+		tx_chains &= data->valid_tx_ant;
+	if (data->valid_rx_ant)
+		rx_chains &= data->valid_rx_ant;
 
 	sku = iwl_get_sku(cfg, nvm_sw);
 	data->sku_cap_band_24GHz_enable = sku & NVM_SKU_CAP_BAND_24GHZ;
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 33bf915cd7ea..0507647228af 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -933,7 +933,7 @@ iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
 		return -EINVAL;
 	if (scan_rx_ant > ANT_ABC)
 		return -EINVAL;
-	if (scan_rx_ant & ~mvm->fw->valid_rx_ant)
+	if (scan_rx_ant & ~(iwl_mvm_get_valid_rx_ant(mvm)))
 		return -EINVAL;
 
 	if (mvm->scan_rx_ant != scan_rx_ant) {
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index d0fa6e9ed590..60d0c9fdc2e7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -269,7 +269,7 @@ static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm)
 	enum iwl_ucode_type ucode_type = mvm->cur_ucode;
 
 	/* Set parameters */
-	phy_cfg_cmd.phy_cfg = cpu_to_le32(mvm->fw->phy_config);
+	phy_cfg_cmd.phy_cfg = cpu_to_le32(iwl_mvm_get_phy_config(mvm));
 	phy_cfg_cmd.calib_control.event_trigger =
 		mvm->fw->default_calib[ucode_type].event_trigger;
 	phy_cfg_cmd.calib_control.flow_trigger =
@@ -346,7 +346,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 	mvm->calibrating = true;
 
 	/* Send TX valid antennas before triggering calibrations */
-	ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
+	ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
 	if (ret)
 		goto error;
 
@@ -489,7 +489,7 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	mvm->fw_dbg_conf = FW_DBG_INVALID;
 	iwl_mvm_start_fw_dbg_conf(mvm, FW_DBG_CUSTOM);
 
-	ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
+	ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
 	if (ret)
 		goto error;
 
@@ -584,7 +584,7 @@ int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm)
 		goto error;
 	}
 
-	ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant);
+	ret = iwl_send_tx_ant_cfg(mvm, iwl_mvm_get_valid_tx_ant(mvm));
 	if (ret)
 		goto error;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index f6d86ccce6a8..7196b4d6b7cc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -975,7 +975,7 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm,
 	beacon_cmd.tx.tx_flags = cpu_to_le32(tx_flags);
 
 	mvm->mgmt_last_antenna_idx =
-		iwl_mvm_next_antenna(mvm, mvm->fw->valid_tx_ant,
+		iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm),
 				     mvm->mgmt_last_antenna_idx);
 
 	beacon_cmd.tx.rate_n_flags =
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index d24660fb4ef2..f3cb08976e23 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -937,6 +937,33 @@ int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
 int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic);
 int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm);
 
+static inline u8 iwl_mvm_get_valid_tx_ant(struct iwl_mvm *mvm)
+{
+	return mvm->nvm_data && mvm->nvm_data->valid_tx_ant ?
+	       mvm->fw->valid_tx_ant & mvm->nvm_data->valid_tx_ant :
+	       mvm->fw->valid_tx_ant;
+}
+
+static inline u8 iwl_mvm_get_valid_rx_ant(struct iwl_mvm *mvm)
+{
+	return mvm->nvm_data && mvm->nvm_data->valid_rx_ant ?
+	       mvm->fw->valid_rx_ant & mvm->nvm_data->valid_rx_ant :
+	       mvm->fw->valid_rx_ant;
+}
+
+static inline u32 iwl_mvm_get_phy_config(struct iwl_mvm *mvm)
+{
+	u32 phy_config = ~(FW_PHY_CFG_TX_CHAIN |
+			   FW_PHY_CFG_RX_CHAIN);
+	u32 valid_rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
+	u32 valid_tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
+
+	phy_config |= valid_tx_ant << FW_PHY_CFG_TX_CHAIN_POS |
+		      valid_rx_ant << FW_PHY_CFG_RX_CHAIN_POS;
+
+	return mvm->fw->phy_config & phy_config;
+}
+
 int iwl_mvm_up(struct iwl_mvm *mvm);
 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 552a776962af..146554c88c14 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -139,13 +139,14 @@ static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 	u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
 	u32 reg_val = 0;
-
-	radio_cfg_type = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_TYPE) >>
-			  FW_PHY_CFG_RADIO_TYPE_POS;
-	radio_cfg_step = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_STEP) >>
-			  FW_PHY_CFG_RADIO_STEP_POS;
-	radio_cfg_dash = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_DASH) >>
-			  FW_PHY_CFG_RADIO_DASH_POS;
+	u32 phy_config = iwl_mvm_get_phy_config(mvm);
+
+	radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
+			 FW_PHY_CFG_RADIO_TYPE_POS;
+	radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
+			 FW_PHY_CFG_RADIO_STEP_POS;
+	radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
+			 FW_PHY_CFG_RADIO_DASH_POS;
 
 	/* SKU control */
 	reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
index 1c0d4a45c1a8..540c36bae268 100644
--- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
@@ -176,7 +176,7 @@ static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm,
 	cmd->rxchain_info |= cpu_to_le32(active_cnt <<
 					 PHY_RX_CHAIN_MIMO_CNT_POS);
 
-	cmd->txchain_info = cpu_to_le32(mvm->fw->valid_tx_ant);
+	cmd->txchain_info = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
 }
 
 /*
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 30ceb67ed7a7..b9682d7e82fe 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -173,7 +173,7 @@ static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	if (sta->smps_mode == IEEE80211_SMPS_STATIC)
 		return false;
 
-	if (num_of_ant(mvm->fw->valid_tx_ant) < 2)
+	if (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) < 2)
 		return false;
 
 	if (!iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta))
@@ -1004,7 +1004,7 @@ static void rs_get_lower_rate_down_column(struct iwl_lq_sta *lq_sta,
 	}
 
 	if (num_of_ant(rate->ant) > 1)
-		rate->ant = first_antenna(mvm->fw->valid_tx_ant);
+		rate->ant = first_antenna(iwl_mvm_get_valid_tx_ant(mvm));
 
 	/* Relevant in both switching to SISO or Legacy */
 	rate->sgi = false;
@@ -1567,7 +1567,7 @@ static enum rs_column rs_get_next_column(struct iwl_mvm *mvm,
 	const struct rs_tx_column *curr_col = &rs_tx_columns[tbl->column];
 	const struct rs_tx_column *next_col;
 	allow_column_func_t allow_func;
-	u8 valid_ants = mvm->fw->valid_tx_ant;
+	u8 valid_ants = iwl_mvm_get_valid_tx_ant(mvm);
 	const u16 *expected_tpt_tbl;
 	u16 tpt, max_expected_tpt;
 
@@ -2385,7 +2385,7 @@ static void rs_get_initial_rate(struct iwl_mvm *mvm,
 	int i, nentries;
 	s8 best_rssi = S8_MIN;
 	u8 best_ant = ANT_NONE;
-	u8 valid_tx_ant = mvm->fw->valid_tx_ant;
+	u8 valid_tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
 	const struct rs_init_rate_info *initial_rates;
 
 	for (i = 0; i < ARRAY_SIZE(lq_sta->pers.chain_signal); i++) {
@@ -2745,7 +2745,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			lq_sta->ldpc = true;
 
 		if (mvm->cfg->ht_params->stbc &&
-		    (num_of_ant(mvm->fw->valid_tx_ant) > 1) &&
+		    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
 		    (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC))
 			lq_sta->stbc = true;
 	} else {
@@ -2757,7 +2757,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			lq_sta->ldpc = true;
 
 		if (mvm->cfg->ht_params->stbc &&
-		    (num_of_ant(mvm->fw->valid_tx_ant) > 1) &&
+		    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
 		    (vht_cap->cap & IEEE80211_VHT_CAP_RXSTBC_MASK))
 			lq_sta->stbc = true;
 	}
@@ -2785,7 +2785,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 
 	/* These values will be overridden later */
 	lq_sta->lq.single_stream_ant_msk =
-		first_antenna(mvm->fw->valid_tx_ant);
+		first_antenna(iwl_mvm_get_valid_tx_ant(mvm));
 	lq_sta->lq.dual_stream_ant_msk = ANT_AB;
 
 	/* as default allow aggregation for all tids */
@@ -2913,7 +2913,7 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 
 	memcpy(&rate, initial_rate, sizeof(rate));
 
-	valid_tx_ant = mvm->fw->valid_tx_ant;
+	valid_tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
 	rate.stbc = rs_stbc_allow(mvm, sta, lq_sta);
 
 	if (is_siso(&rate)) {
@@ -3167,9 +3167,9 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
 	desc += sprintf(buff+desc, "fixed rate 0x%X\n",
 			lq_sta->pers.dbg_fixed_rate);
 	desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n",
-	    (mvm->fw->valid_tx_ant & ANT_A) ? "ANT_A," : "",
-	    (mvm->fw->valid_tx_ant & ANT_B) ? "ANT_B," : "",
-	    (mvm->fw->valid_tx_ant & ANT_C) ? "ANT_C" : "");
+	    (iwl_mvm_get_valid_tx_ant(mvm) & ANT_A) ? "ANT_A," : "",
+	    (iwl_mvm_get_valid_tx_ant(mvm) & ANT_B) ? "ANT_B," : "",
+	    (iwl_mvm_get_valid_tx_ant(mvm) & ANT_C) ? "ANT_C" : "");
 	desc += sprintf(buff+desc, "lq type %s\n",
 			(is_legacy(rate)) ? "legacy" :
 			is_vht(rate) ? "VHT" : "HT");
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index e5294d01181e..243367650b13 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -97,7 +97,7 @@ static u8 iwl_mvm_scan_rx_ant(struct iwl_mvm *mvm)
 {
 	if (mvm->scan_rx_ant != ANT_NONE)
 		return mvm->scan_rx_ant;
-	return mvm->fw->valid_rx_ant;
+	return iwl_mvm_get_valid_rx_ant(mvm);
 }
 
 static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
@@ -128,7 +128,7 @@ iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum ieee80211_band band,
 	u32 tx_ant;
 
 	mvm->scan_last_antenna_idx =
-		iwl_mvm_next_antenna(mvm, mvm->fw->valid_tx_ant,
+		iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm),
 				     mvm->scan_last_antenna_idx);
 	tx_ant = BIT(mvm->scan_last_antenna_idx) << RATE_MCS_ANT_POS;
 
@@ -1603,7 +1603,7 @@ int iwl_mvm_config_scan(struct iwl_mvm *mvm)
 					 SCAN_CONFIG_FLAG_SET_MAC_ADDR |
 					 SCAN_CONFIG_FLAG_SET_CHANNEL_FLAGS|
 					 SCAN_CONFIG_N_CHANNELS(num_channels));
-	scan_config->tx_chains = cpu_to_le32(mvm->fw->valid_tx_ant);
+	scan_config->tx_chains = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
 	scan_config->rx_chains = cpu_to_le32(iwl_mvm_scan_rx_ant(mvm));
 	scan_config->legacy_rates = iwl_mvm_scan_config_rates(mvm);
 	scan_config->out_of_channel_time = cpu_to_le32(170);
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 4f15d9decc81..d6cdb770881a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -209,7 +209,7 @@ void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd,
 	rate_plcp = iwl_mvm_mac80211_idx_to_hwrate(rate_idx);
 
 	mvm->mgmt_last_antenna_idx =
-		iwl_mvm_next_antenna(mvm, mvm->fw->valid_tx_ant,
+		iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm),
 				     mvm->mgmt_last_antenna_idx);
 
 	if (info->band == IEEE80211_BAND_2GHZ &&
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index e56e77ef5d2e..f0a114102c3f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -620,7 +620,7 @@ void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	lockdep_assert_held(&mvm->mutex);
 
 	/* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */
-	if (num_of_ant(mvm->fw->valid_rx_ant) == 1)
+	if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
 		return;
 
 	if (vif->type == NL80211_IFTYPE_AP)
@@ -662,7 +662,7 @@ bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
 
 	lockdep_assert_held(&mvm->mutex);
 
-	if (num_of_ant(mvm->fw->valid_rx_ant) == 1)
+	if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
 		return false;
 
 	if (!mvm->cfg->rx_with_siso_diversity)
-- 
cgit v1.2.3


From 8c23f95cca0efd2b6e0a8fedd9c9285b352579c8 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu, 4 Dec 2014 10:07:47 +0200
Subject: iwlwifi: mvm: add debugfs to trigger fw debug logs collection

This allows to collect the logs even if the firmware hasn't
crashed. Of course, crashing the firmware is an option, but
this is easier and nicer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-prph.h    |  4 +++
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 54 ++++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/fw.c      | 23 +++++++++++--
 drivers/net/wireless/iwlwifi/mvm/mvm.h     |  3 ++
 4 files changed, 82 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index ea3b9706cbd8..83ab4239082c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -366,11 +366,15 @@ enum secure_load_status_reg {
 #define RXF_FIFO_RD_FENCE_ADDR		(0xa00c0c)
 
 /* FW monitor */
+#define MON_BUFF_SAMPLE_CTL		(0xa03c00)
 #define MON_BUFF_BASE_ADDR		(0xa03c3c)
 #define MON_BUFF_END_ADDR		(0xa03c40)
 #define MON_BUFF_WRPTR			(0xa03c44)
 #define MON_BUFF_CYCLE_CNT		(0xa03c48)
 
+#define DBGC_IN_SAMPLE			(0xa03c00)
+#define DBGC_OUT_CTRL			(0xa03c0c)
+
 /* FW chicken bits */
 #define LMPM_CHICK			0xA01FF8
 enum {
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 0507647228af..a1b276c4dee0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -945,6 +945,56 @@ iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf,
 	return count;
 }
 
+static ssize_t iwl_dbgfs_fw_dbg_conf_read(struct file *file,
+					  char __user *user_buf,
+					  size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	enum iwl_fw_dbg_conf conf;
+	char buf[8];
+	const size_t bufsz = sizeof(buf);
+	int pos = 0;
+
+	mutex_lock(&mvm->mutex);
+	conf = mvm->fw_dbg_conf;
+	mutex_unlock(&mvm->mutex);
+
+	pos += scnprintf(buf + pos, bufsz - pos, "%d\n", conf);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_dbgfs_fw_dbg_conf_write(struct iwl_mvm *mvm,
+					   char *buf, size_t count,
+					   loff_t *ppos)
+{
+	int ret, conf_id;
+
+	ret = kstrtoint(buf, 0, &conf_id);
+	if (ret)
+		return ret;
+
+	if (WARN_ON(conf_id >= FW_DBG_MAX))
+		return -EINVAL;
+
+	mutex_lock(&mvm->mutex);
+	ret = iwl_mvm_start_fw_dbg_conf(mvm, conf_id);
+	mutex_unlock(&mvm->mutex);
+
+	return ret ?: count;
+}
+
+static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
+					      char *buf, size_t count,
+					      loff_t *ppos)
+{
+	mutex_lock(&mvm->mutex);
+	iwl_mvm_fw_dbg_collect(mvm);
+	mutex_unlock(&mvm->mutex);
+
+	return count;
+}
+
 #define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__)
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file,
@@ -1459,6 +1509,8 @@ MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
 MVM_DEBUGFS_WRITE_FILE_OPS(bt_force_ant, 10);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
+MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 8);
 
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
@@ -1500,6 +1552,8 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 			     S_IWUSR | S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
+	MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
+	MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
 
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 60d0c9fdc2e7..534ee3123a63 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -70,6 +70,7 @@
 #include "iwl-debug.h"
 #include "iwl-csr.h" /* for iwl_mvm_rx_card_state_notif */
 #include "iwl-io.h" /* for iwl_mvm_rx_card_state_notif */
+#include "iwl-prph.h"
 #include "iwl-eeprom-parse.h"
 
 #include "mvm.h"
@@ -399,8 +400,26 @@ out:
 	return ret;
 }
 
-static int iwl_mvm_start_fw_dbg_conf(struct iwl_mvm *mvm,
-				     enum iwl_fw_dbg_conf conf_id)
+void iwl_mvm_fw_dbg_collect(struct iwl_mvm *mvm)
+{
+	lockdep_assert_held(&mvm->mutex);
+
+	/* stop recording */
+	if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
+		iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
+	} else {
+		iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
+		iwl_write_prph(mvm->trans, DBGC_OUT_CTRL, 0);
+	}
+
+	iwl_mvm_fw_error_dump(mvm);
+
+	/* start recording again */
+	WARN_ON_ONCE(mvm->fw->dbg_dest_tlv &&
+		     iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
+}
+
+int iwl_mvm_start_fw_dbg_conf(struct iwl_mvm *mvm, enum iwl_fw_dbg_conf conf_id)
 {
 	u8 *ptr;
 	int ret;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index f3cb08976e23..ff1a40970ac1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -1371,4 +1371,7 @@ struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm);
 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error);
 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm);
 
+int iwl_mvm_start_fw_dbg_conf(struct iwl_mvm *mvm, enum iwl_fw_dbg_conf id);
+void iwl_mvm_fw_dbg_collect(struct iwl_mvm *mvm);
+
 #endif /* __IWL_MVM_H__ */
-- 
cgit v1.2.3


From f1a68542424191df21953da3cf9ac2d4116dc482 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 16 Dec 2014 12:31:13 +0200
Subject: iwlwifi: mvm: allow RSSI compensation

The firmware is able to compensate the rssi when we hear
the frame on a different channel.
This is true for an offset up to 3 channels.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 2d62b5617a56..bec588dc1945 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -377,6 +377,8 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 
 	hw->wiphy->max_remain_on_channel_duration = 10000;
 	hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
+	/* we can compensate an offset of up to 3 channels = 15 MHz */
+	hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
 
 	/* Extract MAC address */
 	memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
-- 
cgit v1.2.3


From 435da2ce52365d7d7c0056786eca2464d70e90a5 Mon Sep 17 00:00:00 2001
From: Ido Yariv <ido@wizery.com>
Date: Thu, 11 Dec 2014 16:11:01 -0500
Subject: iwlwifi: mvm: Set the HW step in the core dump

The HW step member was left out of the core dump information. Fix this.

Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index bec588dc1945..2293a51f3c3a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -823,6 +823,7 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 		mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
 			cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
 			cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
+	dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
 	memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
 	       sizeof(dump_info->fw_human_readable));
 	strncpy(dump_info->dev_human_readable, mvm->cfg->name,
-- 
cgit v1.2.3


From 19789abbe5dcd9ac1730b6acf04f2bddfeadefce Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Mon, 15 Dec 2014 14:15:15 +0200
Subject: iwlwifi: mvm: clear tt values when entering CT-kill

Clear the thermal throttling values when entering CT-kill, since
everything will be reinitialized anyway when we exit CT-kill.

Additionally, clear the dynamic_smps value in the initialization
funciton, for consistency.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/tt.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/tt.c b/drivers/net/wireless/iwlwifi/mvm/tt.c
index 2b1e61fac34a..ba615ad2176c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tt.c
@@ -69,6 +69,7 @@
 
 static void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm)
 {
+	struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle;
 	u32 duration = mvm->thermal_throttle.params->ct_kill_duration;
 
 	if (test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status))
@@ -77,12 +78,15 @@ static void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm)
 	IWL_ERR(mvm, "Enter CT Kill\n");
 	iwl_mvm_set_hw_ctkill_state(mvm, true);
 
+	tt->throttle = false;
+	tt->dynamic_smps = false;
+
 	/* Don't schedule an exit work if we're in test mode, since
 	 * the temperature will not change unless we manually set it
 	 * again (or disable testing).
 	 */
 	if (!mvm->temperature_test)
-		schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit,
+		schedule_delayed_work(&tt->ct_kill_exit,
 				      round_jiffies_relative(duration * HZ));
 }
 
@@ -452,6 +456,7 @@ void iwl_mvm_tt_initialize(struct iwl_mvm *mvm, u32 min_backoff)
 		tt->params = &iwl7000_tt_params;
 
 	tt->throttle = false;
+	tt->dynamic_smps = false;
 	tt->min_backoff = min_backoff;
 	INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill);
 }
-- 
cgit v1.2.3


From 6a028d9a26446a937fa5c2eaca9407985ef98add Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Sun, 7 Dec 2014 18:18:27 +0200
Subject: iwlwifi: mvm: rs: fix max rate allowed if no rate is allowed

In case the rate mask for one of the modulations was zero the
max rate idx for that modulation was set to 32 (BITS_PER_LONG).
This is bad as it would later lead to an out of bounds access
to the expected tpt table. In most cases there was no real effect
as the expected tpt was set to 0 and this led to avoiding the
modulation effectively.
Fix the out of bounds access and explicitly skip the modulation
in case there's no rate allowed in it.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index b9682d7e82fe..999efc33b9da 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1318,6 +1318,13 @@ static void rs_set_stay_in_table(struct iwl_mvm *mvm, u8 is_legacy,
 	lq_sta->visited_columns = 0;
 }
 
+static inline int rs_get_max_rate_from_mask(unsigned long rate_mask)
+{
+	if (rate_mask)
+		return find_last_bit(&rate_mask, BITS_PER_LONG);
+	return IWL_RATE_INVALID;
+}
+
 static int rs_get_max_allowed_rate(struct iwl_lq_sta *lq_sta,
 				   const struct rs_tx_column *column)
 {
@@ -1613,8 +1620,12 @@ static enum rs_column rs_get_next_column(struct iwl_mvm *mvm,
 			continue;
 
 		max_rate = rs_get_max_allowed_rate(lq_sta, next_col);
-		if (WARN_ON_ONCE(max_rate == IWL_RATE_INVALID))
+		if (max_rate == IWL_RATE_INVALID) {
+			IWL_DEBUG_RATE(mvm,
+				       "Skip column %d: no rate is allowed in this column\n",
+				       next_col_id);
 			continue;
+		}
 
 		max_expected_tpt = expected_tpt_tbl[max_rate];
 		if (tpt >= max_expected_tpt) {
@@ -2765,12 +2776,12 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	if (IWL_MVM_RS_DISABLE_MIMO)
 		lq_sta->active_mimo2_rate = 0;
 
-	lq_sta->max_legacy_rate_idx = find_last_bit(&lq_sta->active_legacy_rate,
-						    BITS_PER_LONG);
-	lq_sta->max_siso_rate_idx = find_last_bit(&lq_sta->active_siso_rate,
-						  BITS_PER_LONG);
-	lq_sta->max_mimo2_rate_idx = find_last_bit(&lq_sta->active_mimo2_rate,
-						   BITS_PER_LONG);
+	lq_sta->max_legacy_rate_idx =
+		rs_get_max_rate_from_mask(lq_sta->active_legacy_rate);
+	lq_sta->max_siso_rate_idx =
+		rs_get_max_rate_from_mask(lq_sta->active_siso_rate);
+	lq_sta->max_mimo2_rate_idx =
+		rs_get_max_rate_from_mask(lq_sta->active_mimo2_rate);
 
 	IWL_DEBUG_RATE(mvm,
 		       "RATE MASK: LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d LDPC=%d STBC%d\n",
-- 
cgit v1.2.3


From 363039be5b9dcbb9df9136c7106d8775f71e43c6 Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Tue, 2 Dec 2014 15:19:22 +0200
Subject: iwlwifi: mvm: support additional nvm_file in family 8000 B step

nvm_file in family 8000 B step and A step differ. This means
that the driver should support 2 file name as default.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-8000.c     |  5 ++++-
 drivers/net/wireless/iwlwifi/iwl-config.h   |  1 +
 drivers/net/wireless/iwlwifi/mvm/mac80211.c |  1 +
 drivers/net/wireless/iwlwifi/mvm/ops.c      | 11 ++++++++---
 4 files changed, 14 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c
index 6c5c55856a35..8f64928aeb42 100644
--- a/drivers/net/wireless/iwlwifi/iwl-8000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-8000.c
@@ -90,7 +90,8 @@
 	IWL8000_FW_PRE "-" __stringify(api) ".ucode"
 
 #define NVM_HW_SECTION_NUM_FAMILY_8000		10
-#define DEFAULT_NVM_FILE_FAMILY_8000		"iwl_nvm_8000.bin"
+#define DEFAULT_NVM_FILE_FAMILY_8000A		"iwl_nvm_8000.bin"
+#define DEFAULT_NVM_FILE_FAMILY_8000		"iwl_nvm_8000B.bin"
 
 /* Max SDIO RX aggregation size of the ADDBA request/response */
 #define MAX_RX_AGG_SIZE_8260_SDIO	28
@@ -159,6 +160,7 @@ const struct iwl_cfg iwl8260_2ac_sdio_cfg = {
 	.nvm_ver = IWL8000_NVM_VERSION,
 	.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
 	.default_nvm_file = DEFAULT_NVM_FILE_FAMILY_8000,
+	.default_nvm_file_8000A = DEFAULT_NVM_FILE_FAMILY_8000A,
 	.max_rx_agg_size = MAX_RX_AGG_SIZE_8260_SDIO,
 	.disable_dummy_notification = true,
 	.max_ht_ampdu_exponent  = MAX_HT_AMPDU_EXPONENT_8260_SDIO,
@@ -173,6 +175,7 @@ const struct iwl_cfg iwl4165_2ac_sdio_cfg = {
 	.nvm_ver = IWL8000_NVM_VERSION,
 	.nvm_calib_ver = IWL8000_TX_POWER_VERSION,
 	.default_nvm_file = DEFAULT_NVM_FILE_FAMILY_8000,
+	.default_nvm_file_8000A = DEFAULT_NVM_FILE_FAMILY_8000A,
 	.max_rx_agg_size = MAX_RX_AGG_SIZE_8260_SDIO,
 	.bt_shared_single_ant = true,
 	.disable_dummy_notification = true,
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index 31c67dfabf55..2daabab7ec3f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -300,6 +300,7 @@ struct iwl_cfg {
 	const struct iwl_pwr_tx_backoff *pwr_tx_backoffs;
 	bool no_power_up_nic_in_init;
 	const char *default_nvm_file;
+	const char *default_nvm_file_8000A;
 	unsigned int max_rx_agg_size;
 	bool disable_dummy_notification;
 	unsigned int max_tx_agg_size;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 2293a51f3c3a..f53bfd6e8df8 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -85,6 +85,7 @@
 #include "testmode.h"
 #include "iwl-fw-error-dump.h"
 #include "iwl-prph.h"
+#include "iwl-csr.h"
 
 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
 	{
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 146554c88c14..b2fa3b878f79 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -511,10 +511,15 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	min_backoff = calc_min_backoff(trans, cfg);
 	iwl_mvm_tt_initialize(mvm, min_backoff);
 	/* set the nvm_file_name according to priority */
-	if (iwlwifi_mod_params.nvm_file)
+	if (iwlwifi_mod_params.nvm_file) {
 		mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
-	else
-		mvm->nvm_file_name = mvm->cfg->default_nvm_file;
+	} else {
+		if ((trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) &&
+		    (CSR_HW_REV_STEP(trans->hw_rev) == SILICON_A_STEP))
+			mvm->nvm_file_name = mvm->cfg->default_nvm_file_8000A;
+		else
+			mvm->nvm_file_name = mvm->cfg->default_nvm_file;
+	}
 
 	if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
 		 "not allowing power-up and not having nvm_file\n"))
-- 
cgit v1.2.3


From addfaada8fd044ad8cb365a792a09b1b3265376f Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Tue, 2 Dec 2014 11:16:04 +0200
Subject: iwlwifi: mvm: add smem content to dump data

In NICs that have SMEM - add its content to the dump data
for later debug.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-8000.c          |  8 ++++++--
 drivers/net/wireless/iwlwifi/iwl-config.h        |  4 ++++
 drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h |  2 ++
 drivers/net/wireless/iwlwifi/mvm/mac80211.c      | 19 +++++++++++++++++++
 4 files changed, 31 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c
index 8f64928aeb42..46e9c9ac6ba2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-8000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-8000.c
@@ -81,9 +81,11 @@
 #define IWL8000_NVM_VERSION		0x0a1d
 #define IWL8000_TX_POWER_VERSION	0xffff /* meaningless */
 
-/* DCCM offsets and lengths */
+/* Memory offsets and lengths */
 #define IWL8260_DCCM_OFFSET		0x800000
 #define IWL8260_DCCM_LEN		0x18000
+#define IWL8260_SMEM_OFFSET		0x400000
+#define IWL8260_SMEM_LEN		0x68000
 
 #define IWL8000_FW_PRE "iwlwifi-8000"
 #define IWL8000_MODULE_FIRMWARE(api) \
@@ -131,7 +133,9 @@ static const struct iwl_ht_params iwl8000_ht_params = {
 	.d0i3 = true,						\
 	.non_shared_ant = ANT_A,				\
 	.dccm_offset = IWL8260_DCCM_OFFSET,			\
-	.dccm_len = IWL8260_DCCM_LEN
+	.dccm_len = IWL8260_DCCM_LEN,				\
+	.smem_offset = IWL8260_SMEM_OFFSET,			\
+	.smem_len = IWL8260_SMEM_LEN
 
 const struct iwl_cfg iwl8260_2n_cfg = {
 	.name = "Intel(R) Dual Band Wireless N 8260",
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index 2daabab7ec3f..398505121b59 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -263,6 +263,8 @@ struct iwl_pwr_tx_backoff {
  *	station can receive in VHT
  * @dccm_offset: offset from which DCCM begins
  * @dccm_len: length of DCCM (including runtime stack CCM)
+ * @smem_offset: offset from which the SMEM begins
+ * @smem_len: the length of SMEM
  *
  * We enable the driver to be backward compatible wrt. hardware features.
  * API differences in uCode shouldn't be handled here but through TLVs
@@ -308,6 +310,8 @@ struct iwl_cfg {
 	unsigned int max_vht_ampdu_exponent;
 	const u32 dccm_offset;
 	const u32 dccm_len;
+	const u32 smem_offset;
+	const u32 smem_len;
 };
 
 /*
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
index 20a8a64c9fe3..c6a81a760cf6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
@@ -82,6 +82,7 @@
  * @IWL_FW_ERROR_DUMP_PRPH: range of periphery registers - there can be several
  *	sections like this in a single file.
  * @IWL_FW_ERROR_DUMP_FH_REGS: range of FH registers
+ * @IWL_FW_ERROR_DUMP_SMEM:
  */
 enum iwl_fw_error_dump_type {
 	IWL_FW_ERROR_DUMP_SRAM = 0,
@@ -93,6 +94,7 @@ enum iwl_fw_error_dump_type {
 	IWL_FW_ERROR_DUMP_PRPH = 6,
 	IWL_FW_ERROR_DUMP_TXF = 7,
 	IWL_FW_ERROR_DUMP_FH_REGS = 8,
+	IWL_FW_ERROR_DUMP_SMEM = 9,
 
 	IWL_FW_ERROR_DUMP_MAX,
 };
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index f53bfd6e8df8..d5d1cdaa0310 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -774,9 +774,16 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	u32 file_len, rxf_len;
 	unsigned long flags;
 	int reg_val;
+	u32 smem_len = mvm->cfg->smem_len;
 
 	lockdep_assert_held(&mvm->mutex);
 
+	/* W/A for 8000 HW family A-step */
+	if (mvm->cfg->smem_len &&
+	    mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
+	    CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP)
+		smem_len = 0x38000;
+
 	fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
 	if (!fw_error_dump)
 		return;
@@ -806,6 +813,10 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 		   rxf_len +
 		   sizeof(*dump_info);
 
+	/* Make room for the SMEM, if it exists */
+	if (smem_len)
+		file_len += sizeof(*dump_data) + smem_len;
+
 	dump_file = vzalloc(file_len);
 	if (!dump_file) {
 		kfree(fw_error_dump);
@@ -856,6 +867,14 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
 				 sram_len);
 
+	if (smem_len) {
+		dump_data = iwl_fw_error_next_data(dump_data);
+		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SMEM);
+		dump_data->len = cpu_to_le32(smem_len);
+		iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
+					 dump_data->data, smem_len);
+	}
+
 	fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
 	fw_error_dump->op_mode_len = file_len;
 	if (fw_error_dump->trans_ptr)
-- 
cgit v1.2.3


From e06d8437cdf903a39bf93f16338c5b5a37810017 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 9 Dec 2014 14:36:41 +0200
Subject: iwlwifi: mvm: change SMEM dump to general purpose memory dump

Instead of adding a dump type for each type of memory, change
the SMEM type to be a general purpose memory dump. Add the
type of the memory and its offset in the device in the dump
itself. This will allow an external parser to know where
this memory came from.

Note that since this type isn't really in use yet, this is
not a real problem.

Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h | 21 +++++++++++++++++++--
 drivers/net/wireless/iwlwifi/mvm/mac80211.c      | 14 ++++++++++----
 2 files changed, 29 insertions(+), 6 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
index c6a81a760cf6..c0fe82c13007 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
@@ -82,7 +82,7 @@
  * @IWL_FW_ERROR_DUMP_PRPH: range of periphery registers - there can be several
  *	sections like this in a single file.
  * @IWL_FW_ERROR_DUMP_FH_REGS: range of FH registers
- * @IWL_FW_ERROR_DUMP_SMEM:
+ * @IWL_FW_ERROR_DUMP_MEM: chunk of memory
  */
 enum iwl_fw_error_dump_type {
 	IWL_FW_ERROR_DUMP_SRAM = 0,
@@ -94,7 +94,7 @@ enum iwl_fw_error_dump_type {
 	IWL_FW_ERROR_DUMP_PRPH = 6,
 	IWL_FW_ERROR_DUMP_TXF = 7,
 	IWL_FW_ERROR_DUMP_FH_REGS = 8,
-	IWL_FW_ERROR_DUMP_SMEM = 9,
+	IWL_FW_ERROR_DUMP_MEM = 9,
 
 	IWL_FW_ERROR_DUMP_MAX,
 };
@@ -182,6 +182,23 @@ struct iwl_fw_error_dump_prph {
 	__le32 data[];
 };
 
+enum iwl_fw_error_dump_mem_type {
+	IWL_FW_ERROR_DUMP_MEM_SRAM,
+	IWL_FW_ERROR_DUMP_MEM_SMEM,
+};
+
+/**
+ * struct iwl_fw_error_dump_mem - chunk of memory
+ * @type: %enum iwl_fw_error_dump_mem_type
+ * @offset: the offset from which the memory was read
+ * @data: the content of the memory
+ */
+struct iwl_fw_error_dump_mem {
+	__le32 type;
+	__le32 offset;
+	u8 data[];
+};
+
 /**
  * iwl_fw_error_next_data - advance fw error dump data pointer
  * @data: previous data block
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index d5d1cdaa0310..e24de9712476 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -815,7 +815,8 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 
 	/* Make room for the SMEM, if it exists */
 	if (smem_len)
-		file_len += sizeof(*dump_data) + smem_len;
+		file_len += sizeof(*dump_data) +
+			sizeof(struct iwl_fw_error_dump_mem) + smem_len;
 
 	dump_file = vzalloc(file_len);
 	if (!dump_file) {
@@ -868,11 +869,16 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 				 sram_len);
 
 	if (smem_len) {
+		struct iwl_fw_error_dump_mem *dump_mem;
+
 		dump_data = iwl_fw_error_next_data(dump_data);
-		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SMEM);
-		dump_data->len = cpu_to_le32(smem_len);
+		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
+		dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
+		dump_mem = (void *)dump_data->data;
+		dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
+		dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
 		iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
-					 dump_data->data, smem_len);
+					 dump_mem->data, smem_len);
 	}
 
 	fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
-- 
cgit v1.2.3


From a549b296228497cec90d3a5f5ecaa1934cec4bf1 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 9 Dec 2014 14:47:57 +0200
Subject: iwlwifi: mvm: convert the SRAM dump to the generic memory dump

This allows to add the offset. The type of the generic
memory dump will let the parser know that this is SRAM.

Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h |  3 +--
 drivers/net/wireless/iwlwifi/mvm/mac80211.c      | 17 +++++++++--------
 2 files changed, 10 insertions(+), 10 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
index c0fe82c13007..ec115bded88a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
@@ -71,7 +71,6 @@
 
 /**
  * enum iwl_fw_error_dump_type - types of data in the dump file
- * @IWL_FW_ERROR_DUMP_SRAM:
  * @IWL_FW_ERROR_DUMP_CSR: Control Status Registers - from offset 0
  * @IWL_FW_ERROR_DUMP_RXF:
  * @IWL_FW_ERROR_DUMP_TXCMD: last TX command data, structured as
@@ -85,7 +84,7 @@
  * @IWL_FW_ERROR_DUMP_MEM: chunk of memory
  */
 enum iwl_fw_error_dump_type {
-	IWL_FW_ERROR_DUMP_SRAM = 0,
+	/* 0 is deprecated */
 	IWL_FW_ERROR_DUMP_CSR = 1,
 	IWL_FW_ERROR_DUMP_RXF = 2,
 	IWL_FW_ERROR_DUMP_TXCMD = 3,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index e24de9712476..b2f4ea597473 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -769,6 +769,7 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	struct iwl_fw_error_dump_file *dump_file;
 	struct iwl_fw_error_dump_data *dump_data;
 	struct iwl_fw_error_dump_info *dump_info;
+	struct iwl_fw_error_dump_mem *dump_mem;
 	struct iwl_mvm_dump_ptrs *fw_error_dump;
 	u32 sram_len, sram_ofs;
 	u32 file_len, rxf_len;
@@ -809,14 +810,13 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 
 	file_len = sizeof(*dump_file) +
 		   sizeof(*dump_data) * 3 +
-		   sram_len +
+		   sram_len + sizeof(*dump_mem) +
 		   rxf_len +
 		   sizeof(*dump_info);
 
 	/* Make room for the SMEM, if it exists */
 	if (smem_len)
-		file_len += sizeof(*dump_data) +
-			sizeof(struct iwl_fw_error_dump_mem) + smem_len;
+		file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
 
 	dump_file = vzalloc(file_len);
 	if (!dump_file) {
@@ -863,14 +863,15 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	}
 
 	dump_data = iwl_fw_error_next_data(dump_data);
-	dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
-	dump_data->len = cpu_to_le32(sram_len);
-	iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
+	dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
+	dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
+	dump_mem = (void *)dump_data->data;
+	dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
+	dump_mem->offset = cpu_to_le32(sram_ofs);
+	iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
 				 sram_len);
 
 	if (smem_len) {
-		struct iwl_fw_error_dump_mem *dump_mem;
-
 		dump_data = iwl_fw_error_next_data(dump_data);
 		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
 		dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
-- 
cgit v1.2.3


From 91742449479bd8666f9533efd9594a7d9f87bd0d Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 9 Dec 2014 15:54:46 +0200
Subject: iwlwifi: mvm: allow both d0i3 and d3 wowlan configuration modes

d3 and d0i3 shouldn't be mutually exclusive. Set supported
wowlan triggers by looking for each of them, and check
on suspend/resume which flow should be used ("any" trigger
is supported by d0i3, and all the others by d3)

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/d3.c       |  7 +++++--
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 14 ++++++++------
 2 files changed, 13 insertions(+), 8 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 744de262373e..a64894c40e8f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -1142,7 +1142,8 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 
 	iwl_trans_suspend(mvm->trans);
-	if (iwl_mvm_is_d0i3_supported(mvm)) {
+	if (wowlan->any) {
+		/* 'any' trigger means d0i3 usage */
 		mutex_lock(&mvm->d0i3_suspend_mutex);
 		__set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
 		mutex_unlock(&mvm->d0i3_suspend_mutex);
@@ -1876,8 +1877,10 @@ int iwl_mvm_resume(struct ieee80211_hw *hw)
 
 	iwl_trans_resume(mvm->trans);
 
-	if (iwl_mvm_is_d0i3_supported(mvm))
+	if (mvm->hw->wiphy->wowlan_config->any) {
+		/* 'any' trigger means d0i3 usage */
 		return 0;
+	}
 
 	return __iwl_mvm_resume(mvm, false);
 }
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index b2f4ea597473..fd0f8ce0f79d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -462,15 +462,17 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	    device_can_wakeup(mvm->trans->dev)) {
 		mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
 		hw->wiphy->wowlan = &mvm->wowlan;
-	} else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
+	}
+
+	if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
 	    mvm->trans->ops->d3_suspend &&
 	    mvm->trans->ops->d3_resume &&
 	    device_can_wakeup(mvm->trans->dev)) {
-		mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
-				    WIPHY_WOWLAN_DISCONNECT |
-				    WIPHY_WOWLAN_EAP_IDENTITY_REQ |
-				    WIPHY_WOWLAN_RFKILL_RELEASE |
-				    WIPHY_WOWLAN_NET_DETECT;
+		mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
+				     WIPHY_WOWLAN_DISCONNECT |
+				     WIPHY_WOWLAN_EAP_IDENTITY_REQ |
+				     WIPHY_WOWLAN_RFKILL_RELEASE |
+				     WIPHY_WOWLAN_NET_DETECT;
 		if (!iwlwifi_mod_params.sw_crypto)
 			mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
 					     WIPHY_WOWLAN_GTK_REKEY_FAILURE |
-- 
cgit v1.2.3


From 0f8f93d6c81817d902fb46b0d741164992cc685a Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 9 Dec 2014 15:11:56 +0200
Subject: iwlwifi: support multiple d0i3 modes

Allow configuring additional d0i3 mode, in which the
fw will be configured to enter d0i3 only on suspend
(while keeping the wake_lock accounting as usual)

The d0i3 mode to use will be determined by the
underlying trans layer.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-trans.h | 17 +++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/mvm.h   |  1 +
 2 files changed, 18 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 028408a6ecba..10ae9d7da0af 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -551,6 +551,21 @@ enum iwl_trans_state {
 	IWL_TRANS_FW_ALIVE	= 1,
 };
 
+/**
+ * enum iwl_d0i3_mode - d0i3 mode
+ *
+ * @IWL_D0I3_MODE_OFF - d0i3 is disabled
+ * @IWL_D0I3_MODE_ON_IDLE - enter d0i3 when device is idle
+ *	(e.g. no active references)
+ * @IWL_D0I3_MODE_ON_SUSPEND - enter d0i3 only on suspend
+ *	(in case of 'any' trigger)
+ */
+enum iwl_d0i3_mode {
+	IWL_D0I3_MODE_OFF = 0,
+	IWL_D0I3_MODE_ON_IDLE,
+	IWL_D0I3_MODE_ON_SUSPEND,
+};
+
 /**
  * struct iwl_trans - transport common data
  *
@@ -612,6 +627,8 @@ struct iwl_trans {
 	const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_MAX];
 	u8 dbg_dest_reg_num;
 
+	enum iwl_d0i3_mode d0i3_mode;
+
 	/* pointer to trans specific struct */
 	/*Ensure that this pointer will always be aligned to sizeof pointer */
 	char trans_specific[0] __aligned(sizeof(void *));
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index ff1a40970ac1..e608dc4e76e1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -850,6 +850,7 @@ iwl_mvm_sta_from_staid_protected(struct iwl_mvm *mvm, u8 sta_id)
 static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm)
 {
 	return mvm->trans->cfg->d0i3 &&
+	       mvm->trans->d0i3_mode != IWL_D0I3_MODE_OFF &&
 	       (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_D0I3_SUPPORT);
 }
 
-- 
cgit v1.2.3


From 6735943fafeaf55223b8704e52568b89ac3129e3 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 9 Dec 2014 15:23:54 +0200
Subject: iwlwifi: mvm: support IWL_D0I3_MODE_ON_SUSPEND d0i3 mode

Enter d0i3 on suspend, and exit d0i3. Wait for the
command responses in both cases.

Use this mode in case of pcie trans.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/d3.c       | 40 +++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/mac80211.c |  7 +++++
 drivers/net/wireless/iwlwifi/mvm/mvm.h      |  2 ++
 drivers/net/wireless/iwlwifi/mvm/ops.c      |  5 ++--
 drivers/net/wireless/iwlwifi/pcie/trans.c   |  1 +
 5 files changed, 53 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index a64894c40e8f..4b5849eaac61 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -1137,6 +1137,29 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 	return ret;
 }
 
+static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm *mvm)
+{
+	struct iwl_notification_wait wait_d3;
+	static const u8 d3_notif[] = { D3_CONFIG_CMD };
+	int ret;
+
+	iwl_init_notification_wait(&mvm->notif_wait, &wait_d3,
+				   d3_notif, ARRAY_SIZE(d3_notif),
+				   NULL, NULL);
+
+	ret = iwl_mvm_enter_d0i3(mvm->hw->priv);
+	if (ret)
+		goto remove_notif;
+
+	ret = iwl_wait_notification(&mvm->notif_wait, &wait_d3, HZ);
+	WARN_ON_ONCE(ret);
+	return ret;
+
+remove_notif:
+	iwl_remove_notification(&mvm->notif_wait, &wait_d3);
+	return ret;
+}
+
 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
@@ -1144,6 +1167,13 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	iwl_trans_suspend(mvm->trans);
 	if (wowlan->any) {
 		/* 'any' trigger means d0i3 usage */
+		if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) {
+			int ret = iwl_mvm_enter_d0i3_sync(mvm);
+
+			if (ret)
+				return ret;
+		}
+
 		mutex_lock(&mvm->d0i3_suspend_mutex);
 		__set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
 		mutex_unlock(&mvm->d0i3_suspend_mutex);
@@ -1879,6 +1909,16 @@ int iwl_mvm_resume(struct ieee80211_hw *hw)
 
 	if (mvm->hw->wiphy->wowlan_config->any) {
 		/* 'any' trigger means d0i3 usage */
+		if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) {
+			int ret = iwl_mvm_exit_d0i3(hw->priv);
+
+			if (ret)
+				return ret;
+			/*
+			 * d0i3 exit will be deferred until reconfig_complete.
+			 * make sure there we are out of d0i3.
+			 */
+		}
 		return 0;
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index fd0f8ce0f79d..29f0feb1dbd2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1021,6 +1021,13 @@ static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
 		IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
 		_iwl_mvm_exit_d0i3(mvm);
 	}
+
+	if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
+		if (!wait_event_timeout(mvm->d0i3_exit_waitq,
+					!test_bit(IWL_MVM_STATUS_IN_D0I3,
+						  &mvm->status),
+					HZ))
+			WARN_ONCE(1, "D0i3 exit on resume timed out\n");
 }
 
 static void
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index e608dc4e76e1..33a674af606c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -1187,6 +1187,8 @@ void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type);
 int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type);
 bool iwl_mvm_ref_taken(struct iwl_mvm *mvm);
 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq);
+int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode);
+int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode);
 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm);
 
 /* BT Coex */
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index b2fa3b878f79..17f58ca4bcba 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -1030,7 +1030,8 @@ static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
 out:
 	rcu_read_unlock();
 }
-static int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
+
+int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 	u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
@@ -1244,7 +1245,7 @@ out:
 	return ret;
 }
 
-static int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
+int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index fbdbec89ad70..daec2f86eec0 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -2453,6 +2453,7 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	}
 
 	trans_pcie->inta_mask = CSR_INI_SET_MASK;
+	trans->d0i3_mode = IWL_D0I3_MODE_ON_SUSPEND;
 
 	return trans;
 
-- 
cgit v1.2.3


From b0677f71333032c384641b874c26b8871431a009 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Sun, 14 Dec 2014 17:49:28 +0200
Subject: iwlwifi: mvm: consider d0i3_disable in iwl_mvm_is_d0i3_supported()

Consider the iwlwifi module param d0i3_disable when
considering whether d0i3 is supported.

(There is currently no need to differentiate between
supported and enabled, so keep the function as-is)

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mvm.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 33a674af606c..b2100b414055 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -851,6 +851,7 @@ static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm)
 {
 	return mvm->trans->cfg->d0i3 &&
 	       mvm->trans->d0i3_mode != IWL_D0I3_MODE_OFF &&
+	       !iwlwifi_mod_params.d0i3_disable &&
 	       (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_D0I3_SUPPORT);
 }
 
-- 
cgit v1.2.3


From 37948fcfd0bef2344df4245f231947cbadb6341a Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Thu, 11 Dec 2014 10:48:18 +0200
Subject: iwlwifi: mvm: wait for d0i3 exit on hw restart

On hw restart, make sure to wait for d0i3 exit
(by checking the IN_D0I3 status bit).

This is needed in order to avoid the stale
d0i3_exit_work from doing harm (e.g. unref
cleared reference).

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 29f0feb1dbd2..9ccecbc588f9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -972,6 +972,19 @@ static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	int ret;
 
+	/* Some hw restart cleanups must not hold the mutex */
+	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
+		/*
+		 * Make sure we are out of d0i3. This is needed
+		 * to make sure the reference accounting is correct
+		 * (and there is no stale d0i3_exit_work).
+		 */
+		wait_event_timeout(mvm->d0i3_exit_waitq,
+				   !test_bit(IWL_MVM_STATUS_IN_D0I3,
+					     &mvm->status),
+				   HZ);
+	}
+
 	mutex_lock(&mvm->mutex);
 	ret = __iwl_mvm_mac_start(mvm);
 	mutex_unlock(&mvm->mutex);
-- 
cgit v1.2.3


From 2624a5ca76eff87e92ec2be9ea76dd382993bd19 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 16 Dec 2014 13:02:03 +0200
Subject: iwlwifi: mvm: support 2 different channels

The driver and the firmware now support 2 different channels
at the same time. Advertise this capability to the stack.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 9ccecbc588f9..4db051d84f1c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -106,7 +106,7 @@ static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
 
 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
 	{
-		.num_different_channels = 1,
+		.num_different_channels = 2,
 		.max_interfaces = 3,
 		.limits = iwl_mvm_limits,
 		.n_limits = ARRAY_SIZE(iwl_mvm_limits),
-- 
cgit v1.2.3


From 744cb695643ac111c422e4c517961646561b6895 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Wed, 10 Dec 2014 18:44:13 +0200
Subject: iwlwifi: mvm: clean refs before stop_device()

Some implementations (i.e. mini_rpm) assume the references
are managed only while the device is started.

Move the stale reference cleanup before stopping the
device in order to make them happy.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 4db051d84f1c..084689b9b93c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -903,6 +903,11 @@ static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
 	if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
 		iwl_mvm_fw_error_dump(mvm);
 
+	/* cleanup all stale references (scan, roc), but keep the
+	 * ucode_down ref until reconfig is complete
+	 */
+	iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
+
 	iwl_trans_stop_device(mvm->trans);
 
 	mvm->scan_status = IWL_MVM_SCAN_NONE;
@@ -932,10 +937,6 @@ static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
 
 	ieee80211_wake_queues(mvm->hw);
 
-	/* cleanup all stale references (scan, roc), but keep the
-	 * ucode_down ref until reconfig is complete */
-	iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
-
 	/* clear any stale d0i3 state */
 	clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
 
-- 
cgit v1.2.3


From 5b530e95a95d17f004702cd829e42e171179f529 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 23 Dec 2014 16:00:17 +0100
Subject: iwlwifi: mvm: use iwl_mvm_vif_from_mac80211() consistently

There are a few places not using it, use it at those places.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/coex.c        | 4 ++--
 drivers/net/wireless/iwlwifi/mvm/coex_legacy.c | 4 ++--
 drivers/net/wireless/iwlwifi/mvm/sta.c         | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c
index a3bfda45d9e6..d2fd48c31d3d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex.c
@@ -989,7 +989,7 @@ int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
 				   struct ieee80211_vif *vif)
 {
-	struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_bt_iterator_data *data = _data;
 	struct iwl_mvm *mvm = data->mvm;
 
@@ -1025,7 +1025,7 @@ static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   enum ieee80211_rssi_event rssi_event)
 {
-	struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_bt_iterator_data data = {
 		.mvm = mvm,
 	};
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
index b3210cfbecc8..973f2881dd1d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
@@ -1034,7 +1034,7 @@ int iwl_mvm_rx_bt_coex_notif_old(struct iwl_mvm *mvm,
 static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
 				     struct ieee80211_vif *vif)
 {
-	struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_bt_iterator_data *data = _data;
 	struct iwl_mvm *mvm = data->mvm;
 
@@ -1070,7 +1070,7 @@ static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
 void iwl_mvm_bt_rssi_event_old(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			       enum ieee80211_rssi_event rssi_event)
 {
-	struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_bt_iterator_data data = {
 		.mvm = mvm,
 	};
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index d86fe432e51f..9eaa96ec6bad 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -1144,7 +1144,7 @@ static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm)
 static u8 iwl_mvm_get_key_sta_id(struct ieee80211_vif *vif,
 				 struct ieee80211_sta *sta)
 {
-	struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 
 	if (sta) {
 		struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
@@ -1280,7 +1280,7 @@ static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm,
 				       struct ieee80211_vif *vif,
 				       struct ieee80211_sta *sta)
 {
-	struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 
 	if (sta)
 		return sta->addr;
-- 
cgit v1.2.3


From 9d8ce6afe19e8b5fea175ece550ec1f9d1024f8d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 23 Dec 2014 16:02:40 +0100
Subject: iwlwifi: mvm: use iwl_mvm_sta_from_mac80211() consistently

A number of places (still) use a direct operation, use
iwl_mvm_sta_from_mac80211() consistently. In one place
also move it into the variable initializer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/d3.c          |  4 ++--
 drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c |  2 +-
 drivers/net/wireless/iwlwifi/mvm/mac80211.c    |  4 ++--
 drivers/net/wireless/iwlwifi/mvm/ops.c         |  2 +-
 drivers/net/wireless/iwlwifi/mvm/rs.c          | 13 +++++--------
 drivers/net/wireless/iwlwifi/mvm/sta.c         | 12 ++++++------
 6 files changed, 17 insertions(+), 20 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 4b5849eaac61..14e8fd661889 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -793,7 +793,7 @@ iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
 			  struct ieee80211_sta *ap_sta)
 {
 	int ret;
-	struct iwl_mvm_sta *mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv;
+	struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
 
 	/* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
 
@@ -1657,7 +1657,7 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
 	if (IS_ERR_OR_NULL(ap_sta))
 		goto out_free;
 
-	mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv;
+	mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
 	for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
 		u16 seq = status.qos_seq_ctr[i];
 		/* firmware stores last-used value, we store next value */
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
index 9aa2311a776c..8dc3ca9f4904 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
@@ -268,7 +268,7 @@ static ssize_t iwl_dbgfs_mac_params_read(struct file *file,
 		sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id],
 						lockdep_is_held(&mvm->mutex));
 		if (!IS_ERR_OR_NULL(sta)) {
-			struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+			struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 
 			pos += scnprintf(buf+pos, bufsz-pos,
 					 "ap_sta_id %d - reduced Tx power %d\n",
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 084689b9b93c..c4552b5f5c19 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -2137,7 +2137,7 @@ static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
 				       struct ieee80211_sta *sta)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 
 	/*
 	 * This is called before mac80211 does RCU synchronisation,
@@ -3152,7 +3152,7 @@ static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
 			   bool set)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 
 	if (!mvm_sta || !mvm_sta->vif) {
 		IWL_ERR(mvm, "Station is not associated to a vif\n");
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 17f58ca4bcba..6bb6546a734b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -1146,7 +1146,7 @@ void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
 
 	if (mvm->d0i3_offloading && qos_seq) {
 		/* update qos seq numbers if offloading was enabled */
-		mvm_ap_sta = (struct iwl_mvm_sta *)sta->drv_priv;
+		mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
 		for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
 			u16 seq = le16_to_cpu(qos_seq[i]);
 			/* firmware stores last-used one, we store next one */
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 999efc33b9da..568829db2119 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1946,7 +1946,7 @@ static bool rs_tpc_perform(struct iwl_mvm *mvm,
 			   struct iwl_lq_sta *lq_sta,
 			   struct iwl_scale_tbl_info *tbl)
 {
-	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 	struct ieee80211_vif *vif = mvm_sta->vif;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	enum ieee80211_band band;
@@ -2055,7 +2055,7 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 	u16 high_low;
 	s32 sr;
 	u8 prev_agg = lq_sta->is_agg;
-	struct iwl_mvm_sta *sta_priv = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *sta_priv = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_mvm_tid_data *tid_data;
 	struct rs_rate *rate;
 
@@ -2541,7 +2541,7 @@ static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta,
 static void *rs_alloc_sta(void *mvm_rate, struct ieee80211_sta *sta,
 			  gfp_t gfp)
 {
-	struct iwl_mvm_sta *sta_priv = (struct iwl_mvm_sta *)sta->drv_priv;
+	struct iwl_mvm_sta *sta_priv = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_op_mode *op_mode = (struct iwl_op_mode *)mvm_rate;
 	struct iwl_mvm *mvm  = IWL_OP_MODE_GET_MVM(op_mode);
 	struct iwl_lq_sta *lq_sta = &sta_priv->lq_sta;
@@ -2694,14 +2694,11 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	struct ieee80211_hw *hw = mvm->hw;
 	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
-	struct iwl_mvm_sta *sta_priv;
-	struct iwl_lq_sta *lq_sta;
+	struct iwl_mvm_sta *sta_priv = iwl_mvm_sta_from_mac80211(sta);
+	struct iwl_lq_sta *lq_sta = &sta_priv->lq_sta;
 	struct ieee80211_supported_band *sband;
 	unsigned long supp; /* must be unsigned long for for_each_set_bit */
 
-	sta_priv = (struct iwl_mvm_sta *)sta->drv_priv;
-	lq_sta = &sta_priv->lq_sta;
-
 	/* clear all non-persistent lq data */
 	memset(lq_sta, 0, offsetof(typeof(*lq_sta), pers));
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index 9eaa96ec6bad..ad327984b099 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -99,7 +99,7 @@ static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm,
 int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			   bool update)
 {
-	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_mvm_add_sta_cmd add_sta_cmd = {
 		.sta_id = mvm_sta->sta_id,
 		.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color),
@@ -259,7 +259,7 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm,
 		    struct ieee80211_sta *sta)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 	int i, ret, sta_id;
 
 	lockdep_assert_held(&mvm->mutex);
@@ -481,7 +481,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 		   struct ieee80211_sta *sta)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 	int ret;
 
 	lockdep_assert_held(&mvm->mutex);
@@ -774,7 +774,7 @@ int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		       int tid, u16 ssn, bool start)
 {
-	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_mvm_add_sta_cmd cmd = {};
 	int ret;
 	u32 status;
@@ -834,7 +834,7 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 static int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			      int tid, u8 queue, bool start)
 {
-	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_mvm_add_sta_cmd cmd = {};
 	int ret;
 	u32 status;
@@ -1147,7 +1147,7 @@ static u8 iwl_mvm_get_key_sta_id(struct ieee80211_vif *vif,
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 
 	if (sta) {
-		struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+		struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
 
 		return mvm_sta->sta_id;
 	}
-- 
cgit v1.2.3


From b48217670f6e98491b7cff6b66534b4651347763 Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Sun, 19 Oct 2014 16:58:15 +0200
Subject: iwlwifi: tlv: add support for IWL_UCODE_TLV_SDIO_ADMA_ADDR TLV

A new TLV supplies the ADMA address for SDIO mode, allowing
the driver to configure the default base address to be this
(as given in the FW), rather than hardcoding the values to
use until the FW sends the ALIVE message.

Use the value given by the FW in the IWL_UCODE_TLV_SDIO_ADMA_ADDR
TLV for setting the default SDTM base address until the FW sends
the ALIVE message. If it isn't given in the FW - use the current
hardcoded values.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-drv.c     | 6 ++++++
 drivers/net/wireless/iwlwifi/iwl-fw-file.h | 1 +
 drivers/net/wireless/iwlwifi/iwl-fw.h      | 4 ++++
 drivers/net/wireless/iwlwifi/iwl-trans.h   | 4 ++++
 drivers/net/wireless/iwlwifi/mvm/ops.c     | 2 ++
 5 files changed, 17 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 0381dc495b1c..0d3472679e4d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -903,6 +903,12 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 					    IWL_UCODE_REGULAR_USNIFFER,
 					    tlv_len);
 			break;
+		case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			drv->fw.sdio_adma_addr =
+				le32_to_cpup((__le32 *)tlv_data);
+			break;
 		default:
 			IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
 			break;
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index f2a047f6bb3e..752c72b77fba 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -132,6 +132,7 @@ enum iwl_ucode_tlv_type {
 	IWL_UCODE_TLV_ENABLED_CAPABILITIES	= 30,
 	IWL_UCODE_TLV_N_SCAN_CHANNELS		= 31,
 	IWL_UCODE_TLV_SEC_RT_USNIFFER	= 34,
+	IWL_UCODE_TLV_SDIO_ADMA_ADDR	= 35,
 	IWL_UCODE_TLV_FW_DBG_DEST	= 38,
 	IWL_UCODE_TLV_FW_DBG_CONF	= 39,
 };
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index e6dc3b870949..ffd785cc67d6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -152,6 +152,8 @@ struct iwl_fw_cscheme_list {
  * @mvm_fw: indicates this is MVM firmware
  * @cipher_scheme: optional external cipher scheme.
  * @human_readable: human readable version
+ * @sdio_adma_addr: the default address to set for the ADMA in SDIO mode until
+ *	we get the ALIVE from the uCode
  * @dbg_dest_tlv: points to the destination TLV for debug
  * @dbg_conf_tlv: array of pointers to configuration TLVs for debug
  * @dbg_conf_tlv_len: lengths of the @dbg_conf_tlv entries
@@ -181,6 +183,8 @@ struct iwl_fw {
 	struct ieee80211_cipher_scheme cs[IWL_UCODE_MAX_CS];
 	u8 human_readable[FW_VER_HUMAN_READABLE_SZ];
 
+	u32 sdio_adma_addr;
+
 	struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 	struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_MAX];
 	size_t dbg_conf_tlv_len[FW_DBG_MAX];
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 10ae9d7da0af..84d8477432a2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -382,6 +382,8 @@ enum iwl_trans_status {
  *	are considered stuck and will trigger device restart
  * @command_names: array of command names, must be 256 entries
  *	(one for each command); for debugging only
+ * @sdio_adma_addr: the default address to set for the ADMA in SDIO mode until
+ *	we get the ALIVE from the uCode
  */
 struct iwl_trans_config {
 	struct iwl_op_mode *op_mode;
@@ -396,6 +398,8 @@ struct iwl_trans_config {
 	bool scd_set_active;
 	unsigned int queue_watchdog_timeout;
 	const char *const *command_names;
+
+	u32 sdio_adma_addr;
 };
 
 struct iwl_trans_dump_data {
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 6bb6546a734b..490696791cfd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -481,6 +481,8 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
 	trans_cfg.scd_set_active = true;
 
+	trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
+
 	snprintf(mvm->hw->wiphy->fw_version,
 		 sizeof(mvm->hw->wiphy->fw_version),
 		 "%s", fw->fw_version);
-- 
cgit v1.2.3


From d9f1fc209fdb18d0edd6cc633a8725adbfb0ca01 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 23 Dec 2014 15:05:14 +0200
Subject: iwlwifi: mvm: ask the fw to wakeup (from d0i3) on sysassert

Set the wakeup flag (of the d3 command) to configure the fw
to wakeup when sysassert happens while in d0i3.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/ops.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 490696791cfd..239f033e3b93 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -1049,6 +1049,7 @@ int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
 	};
 	struct iwl_d3_manager_config d3_cfg_cmd = {
 		.min_sleep_time = cpu_to_le32(1000),
+		.wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
 	};
 
 	IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
-- 
cgit v1.2.3


From a1ed4025765cceec180f57eab032c770140d6b8f Mon Sep 17 00:00:00 2001
From: Haim Dreyfuss <haim.dreyfuss@intel.com>
Date: Mon, 1 Dec 2014 23:30:07 +0200
Subject: iwlwifi: mvm: Configure EBS scan ratio

This configuration defines the ratio between number of scan iterations
where EBS is involved to those where it is not.
This configuration was left unconfigured due to inaccurate documentation.
Fix documentation as well.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h | 7 +++++--
 drivers/net/wireless/iwlwifi/mvm/scan.c        | 6 ++++++
 2 files changed, 11 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
index 1f2acf47bfb2..2d1a81c493f1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
@@ -653,8 +653,11 @@ enum iwl_scan_channel_flags {
 };
 
 /* iwl_scan_channel_opt - CHANNEL_OPTIMIZATION_API_S
- * @flags: enum iwl_scan_channel_flgs
- * @non_ebs_ratio: how many regular scan iteration before EBS
+ * @flags: enum iwl_scan_channel_flags
+ * @non_ebs_ratio: defines the ratio of number of scan iterations where EBS is
+ *	involved.
+ *	1 - EBS is disabled.
+ *	2 - every second scan will be full scan(and so on).
  */
 struct iwl_scan_channel_opt {
 	__le16 flags;
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 243367650b13..ed229a8daf4a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -72,6 +72,8 @@
 
 #define IWL_PLCP_QUIET_THRESH 1
 #define IWL_ACTIVE_QUIET_TIME 10
+#define IWL_DENSE_EBS_SCAN_RATIO 5
+#define IWL_SPARSE_EBS_SCAN_RATIO 1
 
 struct iwl_mvm_scan_params {
 	u32 max_out_time;
@@ -1296,10 +1298,14 @@ iwl_mvm_build_generic_unified_scan_cmd(struct iwl_mvm *mvm,
 			cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
 				    IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
 				    IWL_SCAN_CHANNEL_FLAG_CACHE_ADD);
+		cmd->channel_opt[0].non_ebs_ratio =
+			cpu_to_le16(IWL_DENSE_EBS_SCAN_RATIO);
 		cmd->channel_opt[1].flags =
 			cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
 				    IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
 				    IWL_SCAN_CHANNEL_FLAG_CACHE_ADD);
+		cmd->channel_opt[1].non_ebs_ratio =
+			cpu_to_le16(IWL_SPARSE_EBS_SCAN_RATIO);
 	}
 
 	if (iwl_mvm_rrm_scan_needed(mvm))
-- 
cgit v1.2.3


From c3f8d0a3afbc54db0b7ef079d42bc3c72f06d668 Mon Sep 17 00:00:00 2001
From: Haim Dreyfuss <haim.dreyfuss@intel.com>
Date: Tue, 2 Dec 2014 11:03:16 +0200
Subject: iwlwifi: mvm: Alter passive scan fragmentation parameters in case of
 multi-MAC

Make passive scan fragmentation depends on the number of active
interfaces. In case of single-MAC, make passive scan less fragmented.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/scan.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index ed229a8daf4a..348b9c4b694a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -284,11 +284,11 @@ static void iwl_mvm_scan_condition_iterator(void *data, u8 *mac,
 					    struct ieee80211_vif *vif)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-	bool *global_bound = data;
+	int *global_cnt = data;
 
 	if (vif->type != NL80211_IFTYPE_P2P_DEVICE && mvmvif->phy_ctxt &&
 	    mvmvif->phy_ctxt->id < MAX_PHYS)
-		*global_bound = true;
+		*global_cnt += 1;
 }
 
 static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm,
@@ -296,16 +296,16 @@ static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm,
 				     int n_ssids, u32 flags,
 				     struct iwl_mvm_scan_params *params)
 {
-	bool global_bound = false;
+	int global_cnt = 0;
 	enum ieee80211_band band;
 	u8 frag_passive_dwell = 0;
 
 	ieee80211_iterate_active_interfaces_atomic(mvm->hw,
 					    IEEE80211_IFACE_ITER_NORMAL,
 					    iwl_mvm_scan_condition_iterator,
-					    &global_bound);
+					    &global_cnt);
 
-	if (!global_bound)
+	if (!global_cnt)
 		goto not_bound;
 
 	params->suspend_time = 30;
@@ -316,7 +316,11 @@ static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm,
 		    IWL_UCODE_TLV_API_FRAGMENTED_SCAN) {
 			params->suspend_time = 105;
 			params->max_out_time = 70;
-			frag_passive_dwell = 20;
+			/*
+			 * If there is more than one active interface make
+			 * passive scan more fragmented.
+			 */
+			frag_passive_dwell = (global_cnt < 2) ? 40 : 20;
 		} else {
 			params->suspend_time = 120;
 			params->max_out_time = 120;
-- 
cgit v1.2.3


From 834437dab96c751bb013aaac86b19974f6cb444e Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Wed, 17 Dec 2014 15:38:58 +0200
Subject: iwlwifi: mvm: rs: organize and cleanup consts

Organize and cleanup the consts used by rs.
This is part of making some of these configurable.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/constants.h |  28 +++++++
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 109 +++++++++++++--------------
 drivers/net/wireless/iwlwifi/mvm/rs.h        |  39 ----------
 3 files changed, 79 insertions(+), 97 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h
index 3bd93476ec1c..7cd1de820ca7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/constants.h
+++ b/drivers/net/wireless/iwlwifi/mvm/constants.h
@@ -102,5 +102,33 @@
 #define IWL_MVM_QUOTA_THRESHOLD			8
 #define IWL_MVM_RS_RSSI_BASED_INIT_RATE         0
 #define IWL_MVM_RS_DISABLE_MIMO			0
+#define IWL_MVM_RS_NUM_TRY_BEFORE_ANT_TOGGLE    1
+#define IWL_MVM_RS_LEGACY_RETRIES_PER_RATE      1
+#define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE      2
+#define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE_TW   1
+#define IWL_MVM_RS_INITIAL_MIMO_NUM_RATES       3
+#define IWL_MVM_RS_INITIAL_SISO_NUM_RATES       3
+#define IWL_MVM_RS_INITIAL_LEGACY_NUM_RATES     16
+#define IWL_MVM_RS_SECONDARY_LEGACY_NUM_RATES   16
+#define IWL_MVM_RS_SECONDARY_SISO_NUM_RATES     3
+#define IWL_MVM_RS_SECONDARY_SISO_RETRIES       1
+#define IWL_MVM_RS_RATE_MIN_FAILURE_TH		3
+#define IWL_MVM_RS_RATE_MIN_SUCCESS_TH		8
+#define IWL_MVM_RS_STAY_IN_COLUMN_TIMEOUT	5	/* Seconds */
+#define IWL_MVM_RS_IDLE_TIMEOUT			5	/* Seconds */
+#define IWL_MVM_RS_MISSED_RATE_MAX		15
+#define IWL_MVM_RS_LEGACY_FAILURE_LIMIT		160
+#define IWL_MVM_RS_LEGACY_SUCCESS_LIMIT		480
+#define IWL_MVM_RS_LEGACY_TABLE_COUNT		160
+#define IWL_MVM_RS_NON_LEGACY_FAILURE_LIMIT	400
+#define IWL_MVM_RS_NON_LEGACY_SUCCESS_LIMIT	4500
+#define IWL_MVM_RS_NON_LEGACY_TABLE_COUNT	1500
+#define IWL_MVM_RS_SR_FORCE_DECREASE		15	/* percent */
+#define IWL_MVM_RS_SR_NO_DECREASE		85	/* percent */
+#define IWL_MVM_RS_AGG_TIME_LIMIT	        4000    /* 4 msecs. valid 100-8000 */
+#define IWL_MVM_RS_AGG_DISABLE_START	        3
+#define IWL_MVM_RS_TPC_SR_FORCE_INCREASE	75	/* percent */
+#define IWL_MVM_RS_TPC_SR_NO_INCREASE		85	/* percent */
+#define IWL_MVM_RS_TPC_TX_POWER_STEP		3
 
 #endif /* __MVM_CONSTANTS_H */
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 568829db2119..7ba6e5dbbbd0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -42,25 +42,12 @@
 
 #define RS_NAME "iwl-mvm-rs"
 
-#define NUM_TRY_BEFORE_ANT_TOGGLE       1
-#define RS_LEGACY_RETRIES_PER_RATE      1
-#define RS_HT_VHT_RETRIES_PER_RATE      2
-#define RS_HT_VHT_RETRIES_PER_RATE_TW   1
-#define RS_INITIAL_MIMO_NUM_RATES       3
-#define RS_INITIAL_SISO_NUM_RATES       3
-#define RS_INITIAL_LEGACY_NUM_RATES     LINK_QUAL_MAX_RETRY_NUM
-#define RS_SECONDARY_LEGACY_NUM_RATES   LINK_QUAL_MAX_RETRY_NUM
-#define RS_SECONDARY_SISO_NUM_RATES     3
-#define RS_SECONDARY_SISO_RETRIES       1
-
 #define IWL_RATE_MAX_WINDOW		62	/* # tx in history window */
-#define IWL_RATE_MIN_FAILURE_TH		3	/* min failures to calc tpt */
-#define IWL_RATE_MIN_SUCCESS_TH		8	/* min successes to calc tpt */
 
-/* max allowed rate miss before sync LQ cmd */
-#define IWL_MISSED_RATE_MAX		15
-#define RS_STAY_IN_COLUMN_TIMEOUT       (5*HZ)
-#define RS_IDLE_TIMEOUT                 (5*HZ)
+/* Calculations of success ratio are done in fixed point where 12800 is 100%.
+ * Use this macro when dealing with thresholds consts set as a percentage
+ */
+#define RS_PERCENT(x) (128 * x)
 
 static u8 rs_ht_to_legacy[] = {
 	[IWL_RATE_MCS_0_INDEX] = IWL_RATE_6M_INDEX,
@@ -613,7 +600,8 @@ static s32 get_expected_tpt(struct iwl_scale_tbl_info *tbl, int rs_index)
  * at this rate.  window->data contains the bitmask of successful
  * packets.
  */
-static int _rs_collect_tx_data(struct iwl_scale_tbl_info *tbl,
+static int _rs_collect_tx_data(struct iwl_mvm *mvm,
+			       struct iwl_scale_tbl_info *tbl,
 			       int scale_index, int attempts, int successes,
 			       struct iwl_rate_scale_data *window)
 {
@@ -668,8 +656,8 @@ static int _rs_collect_tx_data(struct iwl_scale_tbl_info *tbl,
 	fail_count = window->counter - window->success_counter;
 
 	/* Calculate average throughput, if we have enough history. */
-	if ((fail_count >= IWL_RATE_MIN_FAILURE_TH) ||
-	    (window->success_counter >= IWL_RATE_MIN_SUCCESS_TH))
+	if ((fail_count >= IWL_MVM_RS_RATE_MIN_FAILURE_TH) ||
+	    (window->success_counter >= IWL_MVM_RS_RATE_MIN_SUCCESS_TH))
 		window->average_tpt = (window->success_ratio * tpt + 64) / 128;
 	else
 		window->average_tpt = IWL_INVALID_VALUE;
@@ -677,7 +665,8 @@ static int _rs_collect_tx_data(struct iwl_scale_tbl_info *tbl,
 	return 0;
 }
 
-static int rs_collect_tx_data(struct iwl_lq_sta *lq_sta,
+static int rs_collect_tx_data(struct iwl_mvm *mvm,
+			      struct iwl_lq_sta *lq_sta,
 			      struct iwl_scale_tbl_info *tbl,
 			      int scale_index, int attempts, int successes,
 			      u8 reduced_txp)
@@ -698,7 +687,7 @@ static int rs_collect_tx_data(struct iwl_lq_sta *lq_sta,
 	/* Select window for current tx bit rate */
 	window = &(tbl->win[scale_index]);
 
-	ret = _rs_collect_tx_data(tbl, scale_index, attempts, successes,
+	ret = _rs_collect_tx_data(mvm, tbl, scale_index, attempts, successes,
 				  window);
 	if (ret)
 		return ret;
@@ -707,7 +696,7 @@ static int rs_collect_tx_data(struct iwl_lq_sta *lq_sta,
 		return -EINVAL;
 
 	window = &tbl->tpc_win[reduced_txp];
-	return _rs_collect_tx_data(tbl, scale_index, attempts, successes,
+	return _rs_collect_tx_data(mvm, tbl, scale_index, attempts, successes,
 				   window);
 }
 
@@ -1125,7 +1114,8 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	}
 
 	if (time_after(jiffies,
-		       (unsigned long)(lq_sta->last_tx + RS_IDLE_TIMEOUT))) {
+		       (unsigned long)(lq_sta->last_tx +
+				       (IWL_MVM_RS_IDLE_TIMEOUT * HZ)))) {
 		int t;
 
 		IWL_DEBUG_RATE(mvm, "Tx idle for too long. reinit rs\n");
@@ -1158,7 +1148,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		 * ... driver.
 		 */
 		lq_sta->missed_rate_counter++;
-		if (lq_sta->missed_rate_counter > IWL_MISSED_RATE_MAX) {
+		if (lq_sta->missed_rate_counter > IWL_MVM_RS_MISSED_RATE_MAX) {
 			lq_sta->missed_rate_counter = 0;
 			IWL_DEBUG_RATE(mvm,
 				       "Too many rates mismatch. Send sync LQ. rs_state %d\n",
@@ -1213,7 +1203,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 
 		ucode_rate = le32_to_cpu(table->rs_table[0]);
 		rs_rate_from_ucode_rate(ucode_rate, info->band, &rate);
-		rs_collect_tx_data(lq_sta, curr_tbl, rate.index,
+		rs_collect_tx_data(mvm, lq_sta, curr_tbl, rate.index,
 				   info->status.ampdu_len,
 				   info->status.ampdu_ack_len,
 				   reduced_txp);
@@ -1249,7 +1239,7 @@ void iwl_mvm_rs_tx_status(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			else
 				continue;
 
-			rs_collect_tx_data(lq_sta, tmp_tbl, rate.index, 1,
+			rs_collect_tx_data(mvm, lq_sta, tmp_tbl, rate.index, 1,
 					   i < retries ? 0 : legacy_success,
 					   reduced_txp);
 		}
@@ -1303,13 +1293,13 @@ static void rs_set_stay_in_table(struct iwl_mvm *mvm, u8 is_legacy,
 	IWL_DEBUG_RATE(mvm, "Moving to RS_STATE_STAY_IN_COLUMN\n");
 	lq_sta->rs_state = RS_STATE_STAY_IN_COLUMN;
 	if (is_legacy) {
-		lq_sta->table_count_limit = IWL_LEGACY_TABLE_COUNT;
-		lq_sta->max_failure_limit = IWL_LEGACY_FAILURE_LIMIT;
-		lq_sta->max_success_limit = IWL_LEGACY_SUCCESS_LIMIT;
+		lq_sta->table_count_limit = IWL_MVM_RS_LEGACY_TABLE_COUNT;
+		lq_sta->max_failure_limit = IWL_MVM_RS_LEGACY_FAILURE_LIMIT;
+		lq_sta->max_success_limit = IWL_MVM_RS_LEGACY_SUCCESS_LIMIT;
 	} else {
-		lq_sta->table_count_limit = IWL_NONE_LEGACY_TABLE_COUNT;
-		lq_sta->max_failure_limit = IWL_NONE_LEGACY_FAILURE_LIMIT;
-		lq_sta->max_success_limit = IWL_NONE_LEGACY_SUCCESS_LIMIT;
+		lq_sta->table_count_limit = IWL_MVM_RS_NON_LEGACY_TABLE_COUNT;
+		lq_sta->max_failure_limit = IWL_MVM_RS_NON_LEGACY_FAILURE_LIMIT;
+		lq_sta->max_success_limit = IWL_MVM_RS_NON_LEGACY_SUCCESS_LIMIT;
 	}
 	lq_sta->table_count = 0;
 	lq_sta->total_failed = 0;
@@ -1427,7 +1417,7 @@ static s32 rs_get_best_rate(struct iwl_mvm *mvm,
 	u32 target_tpt;
 	int rate_idx;
 
-	if (success_ratio > RS_SR_NO_DECREASE) {
+	if (success_ratio > IWL_MVM_RS_SR_NO_DECREASE) {
 		target_tpt = 100 * expected_current_tpt;
 		IWL_DEBUG_RATE(mvm,
 			       "SR %d high. Find rate exceeding EXPECTED_CURRENT %d\n",
@@ -1495,7 +1485,7 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search)
 			flush_interval_passed =
 				time_after(jiffies,
 					   (unsigned long)(lq_sta->flush_timer +
-						RS_STAY_IN_COLUMN_TIMEOUT));
+							   (IWL_MVM_RS_STAY_IN_COLUMN_TIMEOUT * HZ)));
 
 		/*
 		 * Check if we should allow search for new modulation mode.
@@ -1735,7 +1725,8 @@ static enum rs_action rs_get_rate_action(struct iwl_mvm *mvm,
 {
 	enum rs_action action = RS_ACTION_STAY;
 
-	if ((sr <= RS_SR_FORCE_DECREASE) || (current_tpt == 0)) {
+	if ((sr <= RS_PERCENT(IWL_MVM_RS_SR_FORCE_DECREASE)) ||
+	    (current_tpt == 0)) {
 		IWL_DEBUG_RATE(mvm,
 			       "Decrease rate because of low SR\n");
 		return RS_ACTION_DOWNSCALE;
@@ -1794,7 +1785,7 @@ static enum rs_action rs_get_rate_action(struct iwl_mvm *mvm,
 
 out:
 	if ((action == RS_ACTION_DOWNSCALE) && (low != IWL_RATE_INVALID)) {
-		if (sr >= RS_SR_NO_DECREASE) {
+		if (sr >= RS_PERCENT(IWL_MVM_RS_SR_NO_DECREASE)) {
 			IWL_DEBUG_RATE(mvm,
 				       "SR is above NO DECREASE. Avoid downscale\n");
 			action = RS_ACTION_STAY;
@@ -1836,11 +1827,11 @@ static bool rs_stbc_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 static void rs_get_adjacent_txp(struct iwl_mvm *mvm, int index,
 				int *weaker, int *stronger)
 {
-	*weaker = index + TPC_TX_POWER_STEP;
+	*weaker = index + IWL_MVM_RS_TPC_TX_POWER_STEP;
 	if (*weaker > TPC_MAX_REDUCTION)
 		*weaker = TPC_INVALID;
 
-	*stronger = index - TPC_TX_POWER_STEP;
+	*stronger = index - IWL_MVM_RS_TPC_TX_POWER_STEP;
 	if (*stronger < 0)
 		*stronger = TPC_INVALID;
 }
@@ -1896,7 +1887,8 @@ static enum tpc_action rs_get_tpc_action(struct iwl_mvm *mvm,
 	}
 
 	/* Too many failures, increase txp */
-	if (sr <= TPC_SR_FORCE_INCREASE || current_tpt == 0) {
+	if (sr <= RS_PERCENT(IWL_MVM_RS_TPC_SR_FORCE_INCREASE) ||
+	    current_tpt == 0) {
 		IWL_DEBUG_RATE(mvm, "increase txp because of weak SR\n");
 		return TPC_ACTION_NO_RESTIRCTION;
 	}
@@ -1919,7 +1911,8 @@ static enum tpc_action rs_get_tpc_action(struct iwl_mvm *mvm,
 	}
 
 	/* next, increase if needed */
-	if (sr < TPC_SR_NO_INCREASE && strong != TPC_INVALID) {
+	if (sr < RS_PERCENT(IWL_MVM_RS_TPC_SR_NO_INCREASE) &&
+	    strong != TPC_INVALID) {
 		if (weak_tpt == IWL_INVALID_VALUE &&
 		    strong_tpt != IWL_INVALID_VALUE &&
 		    current_tpt < strong_tpt) {
@@ -2117,8 +2110,8 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 	 * in current association (use new rate found above).
 	 */
 	fail_count = window->counter - window->success_counter;
-	if ((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
-	    (window->success_counter < IWL_RATE_MIN_SUCCESS_TH)) {
+	if ((fail_count < IWL_MVM_RS_RATE_MIN_FAILURE_TH) &&
+	    (window->success_counter < IWL_MVM_RS_RATE_MIN_SUCCESS_TH)) {
 		IWL_DEBUG_RATE(mvm,
 			       "(%s: %d): Test Window: succ %d total %d\n",
 			       rs_pretty_lq_type(rate->type),
@@ -2720,7 +2713,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	 * previous packets? Need to have IEEE 802.1X auth succeed immediately
 	 * after assoc.. */
 
-	lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX;
+	lq_sta->missed_rate_counter = IWL_MVM_RS_MISSED_RATE_MAX;
 	lq_sta->band = sband->band;
 	/*
 	 * active legacy rates as per supported rates bitmap
@@ -2925,14 +2918,14 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 	rate.stbc = rs_stbc_allow(mvm, sta, lq_sta);
 
 	if (is_siso(&rate)) {
-		num_rates = RS_INITIAL_SISO_NUM_RATES;
-		num_retries = RS_HT_VHT_RETRIES_PER_RATE;
+		num_rates = IWL_MVM_RS_INITIAL_SISO_NUM_RATES;
+		num_retries = IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE;
 	} else if (is_mimo(&rate)) {
-		num_rates = RS_INITIAL_MIMO_NUM_RATES;
-		num_retries = RS_HT_VHT_RETRIES_PER_RATE;
+		num_rates = IWL_MVM_RS_INITIAL_MIMO_NUM_RATES;
+		num_retries = IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE;
 	} else {
-		num_rates = RS_INITIAL_LEGACY_NUM_RATES;
-		num_retries = RS_LEGACY_RETRIES_PER_RATE;
+		num_rates = IWL_MVM_RS_INITIAL_LEGACY_NUM_RATES;
+		num_retries = IWL_MVM_RS_LEGACY_RETRIES_PER_RATE;
 		toggle_ant = true;
 	}
 
@@ -2943,12 +2936,12 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 	rs_get_lower_rate_down_column(lq_sta, &rate);
 
 	if (is_siso(&rate)) {
-		num_rates = RS_SECONDARY_SISO_NUM_RATES;
-		num_retries = RS_SECONDARY_SISO_RETRIES;
+		num_rates = IWL_MVM_RS_SECONDARY_SISO_NUM_RATES;
+		num_retries = IWL_MVM_RS_SECONDARY_SISO_RETRIES;
 		lq_cmd->mimo_delim = index;
 	} else if (is_legacy(&rate)) {
-		num_rates = RS_SECONDARY_LEGACY_NUM_RATES;
-		num_retries = RS_LEGACY_RETRIES_PER_RATE;
+		num_rates = IWL_MVM_RS_SECONDARY_LEGACY_NUM_RATES;
+		num_retries = IWL_MVM_RS_LEGACY_RETRIES_PER_RATE;
 	} else {
 		WARN_ON_ONCE(1);
 	}
@@ -2961,8 +2954,8 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 
 	rs_get_lower_rate_down_column(lq_sta, &rate);
 
-	num_rates = RS_SECONDARY_LEGACY_NUM_RATES;
-	num_retries = RS_LEGACY_RETRIES_PER_RATE;
+	num_rates = IWL_MVM_RS_SECONDARY_LEGACY_NUM_RATES;
+	num_retries = IWL_MVM_RS_LEGACY_RETRIES_PER_RATE;
 
 	rs_fill_rates_for_column(mvm, lq_sta, &rate, lq_cmd->rs_table, &index,
 				 num_rates, num_retries, valid_tx_ant,
@@ -2979,9 +2972,9 @@ static void rs_fill_lq_cmd(struct iwl_mvm *mvm,
 	struct iwl_mvm_sta *mvmsta;
 	struct iwl_mvm_vif *mvmvif;
 
-	lq_cmd->agg_disable_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
+	lq_cmd->agg_disable_start_th = IWL_MVM_RS_AGG_DISABLE_START;
 	lq_cmd->agg_time_limit =
-		cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
+		cpu_to_le16(IWL_MVM_RS_AGG_TIME_LIMIT);
 
 #ifdef CONFIG_MAC80211_DEBUGFS
 	if (lq_sta->pers.dbg_fixed_rate) {
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index defd70a6d9e6..f8f5bf21cc38 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -137,42 +137,10 @@ enum {
 
 #define IWL_INVALID_VALUE    -1
 
-#define IWL_MIN_RSSI_VAL                 -100
-#define IWL_MAX_RSSI_VAL                    0
-
-/* These values specify how many Tx frame attempts before
- * searching for a new modulation mode */
-#define IWL_LEGACY_FAILURE_LIMIT	160
-#define IWL_LEGACY_SUCCESS_LIMIT	480
-#define IWL_LEGACY_TABLE_COUNT		160
-
-#define IWL_NONE_LEGACY_FAILURE_LIMIT	400
-#define IWL_NONE_LEGACY_SUCCESS_LIMIT	4500
-#define IWL_NONE_LEGACY_TABLE_COUNT	1500
-
-/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
-#define IWL_RS_GOOD_RATIO		12800	/* 100% */
-#define IWL_RATE_SCALE_SWITCH		10880	/*  85% */
-#define IWL_RATE_HIGH_TH		10880	/*  85% */
-#define IWL_RATE_INCREASE_TH		6400	/*  50% */
-#define RS_SR_FORCE_DECREASE		1920	/*  15% */
-#define RS_SR_NO_DECREASE		10880	/*  85% */
-
-#define TPC_SR_FORCE_INCREASE		9600	/* 75% */
-#define TPC_SR_NO_INCREASE		10880	/* 85% */
-#define TPC_TX_POWER_STEP		3
 #define TPC_MAX_REDUCTION		15
 #define TPC_NO_REDUCTION		0
 #define TPC_INVALID			0xff
 
-#define LINK_QUAL_AGG_TIME_LIMIT_DEF	(4000) /* 4 milliseconds */
-#define LINK_QUAL_AGG_TIME_LIMIT_MAX	(8000)
-#define LINK_QUAL_AGG_TIME_LIMIT_MIN	(100)
-
-#define LINK_QUAL_AGG_DISABLE_START_DEF	(3)
-#define LINK_QUAL_AGG_DISABLE_START_MAX	(255)
-#define LINK_QUAL_AGG_DISABLE_START_MIN	(0)
-
 #define LINK_QUAL_AGG_FRAME_LIMIT_DEF	(63)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MAX	(63)
 #define LINK_QUAL_AGG_FRAME_LIMIT_MIN	(0)
@@ -181,14 +149,7 @@ enum {
 
 /* load per tid defines for A-MPDU activation */
 #define IWL_AGG_TPT_THREHOLD	0
-#define IWL_AGG_LOAD_THRESHOLD	10
 #define IWL_AGG_ALL_TID		0xff
-#define TID_QUEUE_CELL_SPACING	50	/*mS */
-#define TID_QUEUE_MAX_SIZE	20
-#define TID_ROUND_VALUE		5	/* mS */
-
-#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
-#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
 
 enum iwl_table_type {
 	LQ_NONE,
-- 
cgit v1.2.3


From 2cee4762c528a9bd2cdff793197bf591a2196c11 Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Fri, 16 Jan 2015 11:09:30 +0200
Subject: iwlwifi: mvm: validate tid and sta_id in ba_notif

These are coming from the FW and are used to access arrays.
Bad values can cause an out of bounds access so discard
such ba_notifs and warn.

CC: <stable@vger.kernel.org> [3.10+]
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/tx.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index c59d07567d90..650a5f0b94c7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -930,6 +930,11 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	sta_id = ba_notif->sta_id;
 	tid = ba_notif->tid;
 
+	if (WARN_ONCE(sta_id >= IWL_MVM_STATION_COUNT ||
+		      tid >= IWL_MAX_TID_COUNT,
+		      "sta_id %d tid %d", sta_id, tid))
+		return 0;
+
 	rcu_read_lock();
 
 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
-- 
cgit v1.2.3


From 9ce578a5585c31d32325d89d2d168b93e496b4ed Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Wed, 31 Dec 2014 15:22:38 +0200
Subject: iwlwifi: mvm: don't indicate no BA if STA was in powersave

If Tx failed because the STA was in powersave there's no point
in sending a BAR so avoid indicating AMPDU_NO_BACK to mac80211.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/tx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index d6cdb770881a..1fff0f40f765 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -656,7 +656,8 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 
 		/* Single frame failure in an AMPDU queue => send BAR */
 		if (txq_id >= mvm->first_agg_queue &&
-		    !(info->flags & IEEE80211_TX_STAT_ACK))
+		    !(info->flags & IEEE80211_TX_STAT_ACK) &&
+		    !(info->flags & IEEE80211_TX_STAT_TX_FILTERED))
 			info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
 
 		/* W/A FW bug: seq_ctl is wrong when the status isn't success */
-- 
cgit v1.2.3


From bd9993182a5bc70e9f11506ceb9ae4765e39b08c Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Sun, 28 Dec 2014 22:12:38 +0200
Subject: iwlwifi: mvm: rs: repeat initial legacy rates in LQ table

Repeating the legacy rates avoids degrading quickly to
lower rates due to collisions which is common when doing
TCP Tx traffic in legacy.
This slightly improves TCP Tx throughput while working
in legacy in different scenarios.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/constants.h |  5 +++--
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 19 ++++++++++---------
 2 files changed, 13 insertions(+), 11 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h
index 7cd1de820ca7..2d8e7e3f100b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/constants.h
+++ b/drivers/net/wireless/iwlwifi/mvm/constants.h
@@ -103,12 +103,13 @@
 #define IWL_MVM_RS_RSSI_BASED_INIT_RATE         0
 #define IWL_MVM_RS_DISABLE_MIMO			0
 #define IWL_MVM_RS_NUM_TRY_BEFORE_ANT_TOGGLE    1
-#define IWL_MVM_RS_LEGACY_RETRIES_PER_RATE      1
 #define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE      2
 #define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE_TW   1
 #define IWL_MVM_RS_INITIAL_MIMO_NUM_RATES       3
 #define IWL_MVM_RS_INITIAL_SISO_NUM_RATES       3
-#define IWL_MVM_RS_INITIAL_LEGACY_NUM_RATES     16
+#define IWL_MVM_RS_INITIAL_LEGACY_NUM_RATES     2
+#define IWL_MVM_RS_INITIAL_LEGACY_RETRIES       2
+#define IWL_MVM_RS_SECONDARY_LEGACY_RETRIES	1
 #define IWL_MVM_RS_SECONDARY_LEGACY_NUM_RATES   16
 #define IWL_MVM_RS_SECONDARY_SISO_NUM_RATES     3
 #define IWL_MVM_RS_SECONDARY_SISO_RETRIES       1
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 7ba6e5dbbbd0..474722403556 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2862,12 +2862,13 @@ static void rs_fill_rates_for_column(struct iwl_mvm *mvm,
 	int index = *rs_table_index;
 
 	for (i = 0; i < num_rates && index < end; i++) {
-		ucode_rate = cpu_to_le32(ucode_rate_from_rs_rate(mvm, rate));
-		for (j = 0; j < num_retries && index < end; j++, index++)
+		for (j = 0; j < num_retries && index < end; j++, index++) {
+			ucode_rate = cpu_to_le32(ucode_rate_from_rs_rate(mvm,
+									 rate));
 			rs_table[index] = ucode_rate;
-
-		if (toggle_ant)
-			rs_toggle_antenna(valid_tx_ant, rate);
+			if (toggle_ant)
+				rs_toggle_antenna(valid_tx_ant, rate);
+		}
 
 		prev_rate_idx = rate->index;
 		bottom_reached = rs_get_lower_rate_in_column(lq_sta, rate);
@@ -2875,7 +2876,7 @@ static void rs_fill_rates_for_column(struct iwl_mvm *mvm,
 			break;
 	}
 
-	if (!bottom_reached)
+	if (!bottom_reached && !is_legacy(rate))
 		rate->index = prev_rate_idx;
 
 	*rs_table_index = index;
@@ -2925,7 +2926,7 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 		num_retries = IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE;
 	} else {
 		num_rates = IWL_MVM_RS_INITIAL_LEGACY_NUM_RATES;
-		num_retries = IWL_MVM_RS_LEGACY_RETRIES_PER_RATE;
+		num_retries = IWL_MVM_RS_INITIAL_LEGACY_RETRIES;
 		toggle_ant = true;
 	}
 
@@ -2941,7 +2942,7 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 		lq_cmd->mimo_delim = index;
 	} else if (is_legacy(&rate)) {
 		num_rates = IWL_MVM_RS_SECONDARY_LEGACY_NUM_RATES;
-		num_retries = IWL_MVM_RS_LEGACY_RETRIES_PER_RATE;
+		num_retries = IWL_MVM_RS_SECONDARY_LEGACY_RETRIES;
 	} else {
 		WARN_ON_ONCE(1);
 	}
@@ -2955,7 +2956,7 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 	rs_get_lower_rate_down_column(lq_sta, &rate);
 
 	num_rates = IWL_MVM_RS_SECONDARY_LEGACY_NUM_RATES;
-	num_retries = IWL_MVM_RS_LEGACY_RETRIES_PER_RATE;
+	num_retries = IWL_MVM_RS_SECONDARY_LEGACY_RETRIES;
 
 	rs_fill_rates_for_column(mvm, lq_sta, &rate, lq_cmd->rs_table, &index,
 				 num_rates, num_retries, valid_tx_ant,
-- 
cgit v1.2.3


From fb2380a206eae822b17be63e30b5451db992e290 Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Thu, 1 Jan 2015 17:42:46 +0200
Subject: iwlwifi: mvm: make sure state isn't in d0i3 when collecting fw dbg

This makes sure that we're not trying to read/write any of
the FW debug data collected during d0i3.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 1 +
 drivers/net/wireless/iwlwifi/mvm/mvm.h     | 1 +
 drivers/net/wireless/iwlwifi/mvm/ops.c     | 5 +++++
 3 files changed, 7 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index a1b276c4dee0..f1b3405c44bd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -1390,6 +1390,7 @@ static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
 	PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
 	PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
 	PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
+	PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);
 
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index b2100b414055..c95297e1f836 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -276,6 +276,7 @@ enum iwl_mvm_ref_type {
 	IWL_MVM_REF_TM_CMD,
 	IWL_MVM_REF_EXIT_WORK,
 	IWL_MVM_REF_PROTECT_CSA,
+	IWL_MVM_REF_FW_DBG_COLLECT,
 
 	/* update debugfs.c when changing this */
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 239f033e3b93..b0583fc227a7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -818,9 +818,14 @@ static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
 	struct iwl_mvm *mvm =
 		container_of(work, struct iwl_mvm, fw_error_dump_wk);
 
+	if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
+		return;
+
 	mutex_lock(&mvm->mutex);
 	iwl_mvm_fw_error_dump(mvm);
 	mutex_unlock(&mvm->mutex);
+
+	iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
 }
 
 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
-- 
cgit v1.2.3


From e5d74646526335a00c9591578a188dfb59ad745b Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Tue, 9 Dec 2014 19:15:49 +0200
Subject: iwlwifi: mvm: Add debugfs entry to enable scan offload notification

This option enables scan offload iteration complete notification from
firmware which includes the last iteration's status and the scanned
channels from the current iteration.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 23 +++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/mvm.h     |  5 +++++
 drivers/net/wireless/iwlwifi/mvm/ops.c     |  2 ++
 drivers/net/wireless/iwlwifi/mvm/scan.c    | 18 ++++++++++++++++++
 4 files changed, 48 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index f1b3405c44bd..f89b795fd4be 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -1490,6 +1490,26 @@ out:
 	return count;
 }
 
+static ssize_t iwl_dbgfs_enable_scan_iteration_notif_write(struct iwl_mvm *mvm,
+							   char *buf,
+							   size_t count,
+							   loff_t *ppos)
+{
+	int val;
+
+	mutex_lock(&mvm->mutex);
+
+	if (kstrtoint(buf, 10, &val)) {
+		mutex_unlock(&mvm->mutex);
+		return -EINVAL;
+	}
+
+	mvm->scan_iter_notif_enabled = val;
+	mutex_unlock(&mvm->mutex);
+
+	return count;
+}
+
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
 
 /* Device wide debugfs entries */
@@ -1512,6 +1532,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(fw_dbg_conf, 8);
 MVM_DEBUGFS_WRITE_FILE_OPS(fw_dbg_collect, 8);
+MVM_DEBUGFS_WRITE_FILE_OPS(enable_scan_iteration_notif, 8);
 
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256);
@@ -1555,6 +1576,8 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR);
+	MVM_DEBUGFS_ADD_FILE(enable_scan_iteration_notif, mvm->debugfs_dir,
+			     S_IWUSR);
 
 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) {
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index c95297e1f836..6355127487dd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -642,6 +642,8 @@ struct iwl_mvm {
 	bool disable_power_off;
 	bool disable_power_off_d3;
 
+	bool scan_iter_notif_enabled;
+
 	struct debugfs_blob_wrapper nvm_hw_blob;
 	struct debugfs_blob_wrapper nvm_sw_blob;
 	struct debugfs_blob_wrapper nvm_calib_blob;
@@ -1061,6 +1063,9 @@ int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm, bool is_sched_scan);
 int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm,
 					   struct iwl_rx_cmd_buffer *rxb,
 					   struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_scan_offload_iter_complete_notif(struct iwl_mvm *mvm,
+						struct iwl_rx_cmd_buffer *rxb,
+						struct iwl_device_cmd *cmd);
 int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm,
 			      struct ieee80211_vif *vif,
 			      struct cfg80211_sched_scan_request *req,
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index b0583fc227a7..12b565a6f1a6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -234,6 +234,8 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 
 	RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
 	RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true),
+	RX_HANDLER(SCAN_ITERATION_COMPLETE,
+		   iwl_mvm_rx_scan_offload_iter_complete_notif, false),
 	RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
 		   iwl_mvm_rx_scan_offload_complete_notif, true),
 	RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_offload_results,
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 348b9c4b694a..199f6fce0968 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -536,6 +536,19 @@ int iwl_mvm_rx_scan_response(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	return 0;
 }
 
+int iwl_mvm_rx_scan_offload_iter_complete_notif(struct iwl_mvm *mvm,
+						struct iwl_rx_cmd_buffer *rxb,
+						struct iwl_device_cmd *cmd)
+{
+	struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	struct iwl_scan_complete_notif *notif = (void *)pkt->data;
+
+	IWL_DEBUG_SCAN(mvm,
+		       "Scan offload iteration complete: status=0x%x scanned channels=%d\n",
+		       notif->status, notif->scanned_channels);
+	return 0;
+}
+
 int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 			  struct iwl_device_cmd *cmd)
 {
@@ -1468,6 +1481,11 @@ int iwl_mvm_unified_sched_scan_lmac(struct iwl_mvm *mvm,
 	if (req->n_ssids == 0)
 		flags |= IWL_MVM_LMAC_SCAN_FLAG_PASSIVE;
 
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if (mvm->scan_iter_notif_enabled)
+		flags |= IWL_MVM_LMAC_SCAN_FLAG_ITER_COMPLETE;
+#endif
+
 	cmd->scan_flags |= cpu_to_le32(flags);
 
 	cmd->flags = iwl_mvm_scan_rxon_flags(req->channels[0]->band);
-- 
cgit v1.2.3


From e93475a0ff492000bfd911f44626a3d1d44025b5 Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Sun, 4 Jan 2015 11:03:13 +0200
Subject: iwlwifi: mvm: make sure state isn't in d0i3 when stopping fw monitor

In case platform is in d0i3 - make sure it is awake when
writing the registers to stop the monitor when collecting FW
debug data. Plus, remove unneeded mutex locking currently
done.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index f89b795fd4be..afd1986a3216 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -988,9 +988,14 @@ static ssize_t iwl_dbgfs_fw_dbg_collect_write(struct iwl_mvm *mvm,
 					      char *buf, size_t count,
 					      loff_t *ppos)
 {
-	mutex_lock(&mvm->mutex);
+	int ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PRPH_WRITE);
+
+	if (ret)
+		return ret;
+
 	iwl_mvm_fw_dbg_collect(mvm);
-	mutex_unlock(&mvm->mutex);
+
+	iwl_mvm_unref(mvm, IWL_MVM_REF_PRPH_WRITE);
 
 	return count;
 }
-- 
cgit v1.2.3


From e66e0b707630232b2683eacaa9f5803e008b52b3 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 29 Dec 2014 09:42:37 +0200
Subject: iwlwifi: mvm: allow to collect debug data from non-sleepable context

iwl_mvm_fw_dbg_collect allows to collect debug data from
the firmware. Most of the firmware interaction is done in
non-sleepable context. It makes little sense to force the
caller of iwl_mvm_fw_dbg_collect to sleep.
Defer the actual collection to a worker so that this
function will be able to be called from any context.

Reviewed-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw.c  | 8 +-------
 drivers/net/wireless/iwlwifi/mvm/ops.c | 6 ++++++
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 534ee3123a63..52338b737223 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -402,8 +402,6 @@ out:
 
 void iwl_mvm_fw_dbg_collect(struct iwl_mvm *mvm)
 {
-	lockdep_assert_held(&mvm->mutex);
-
 	/* stop recording */
 	if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
 		iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
@@ -412,11 +410,7 @@ void iwl_mvm_fw_dbg_collect(struct iwl_mvm *mvm)
 		iwl_write_prph(mvm->trans, DBGC_OUT_CTRL, 0);
 	}
 
-	iwl_mvm_fw_error_dump(mvm);
-
-	/* start recording again */
-	WARN_ON_ONCE(mvm->fw->dbg_dest_tlv &&
-		     iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
+	schedule_work(&mvm->fw_error_dump_wk);
 }
 
 int iwl_mvm_start_fw_dbg_conf(struct iwl_mvm *mvm, enum iwl_fw_dbg_conf conf_id)
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 12b565a6f1a6..90143aa838be 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -825,6 +825,12 @@ static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
 
 	mutex_lock(&mvm->mutex);
 	iwl_mvm_fw_error_dump(mvm);
+
+	/* start recording again if the firmware is not crashed */
+	WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
+		      mvm->fw->dbg_dest_tlv &&
+		      iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
+
 	mutex_unlock(&mvm->mutex);
 
 	iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
-- 
cgit v1.2.3


From afe08e1cd599adc589d2c0635f1de28f787d87e7 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 5 Jan 2015 09:48:54 +0200
Subject: iwlwifi: mvm: rs: allow to disable MIMO for P2P only

This is to work around interoperability bugs with devices
that don't hanle MIMO properly.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/constants.h | 2 +-
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h
index 2d8e7e3f100b..f98f3efa2056 100644
--- a/drivers/net/wireless/iwlwifi/mvm/constants.h
+++ b/drivers/net/wireless/iwlwifi/mvm/constants.h
@@ -101,7 +101,7 @@
 #define IWL_MVM_FW_BCAST_FILTER_PASS_ALL	0
 #define IWL_MVM_QUOTA_THRESHOLD			8
 #define IWL_MVM_RS_RSSI_BASED_INIT_RATE         0
-#define IWL_MVM_RS_DISABLE_MIMO			0
+#define IWL_MVM_RS_DISABLE_P2P_MIMO		0
 #define IWL_MVM_RS_NUM_TRY_BEFORE_ANT_TOGGLE    1
 #define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE      2
 #define IWL_MVM_RS_HT_VHT_RETRIES_PER_RATE_TW   1
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 474722403556..57a60948a554 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2763,7 +2763,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			lq_sta->stbc = true;
 	}
 
-	if (IWL_MVM_RS_DISABLE_MIMO)
+	if (IWL_MVM_RS_DISABLE_P2P_MIMO && sta_priv->vif->p2p)
 		lq_sta->active_mimo2_rate = 0;
 
 	lq_sta->max_legacy_rate_idx =
-- 
cgit v1.2.3


From 44e9cd7e4044e3f3f19d0ce761c793d525509c6d Mon Sep 17 00:00:00 2001
From: Haim Dreyfuss <haim.dreyfuss@intel.com>
Date: Thu, 18 Dec 2014 12:34:01 +0200
Subject: iwlwifi: mvm: set max_out_time equal to frag_passive_dwell in
 fragmented scan

Fragmented scan should be applied for all channels, passive and active.
When scanning on passive channels the firmware uses frag_passive_dwell
to define the maximum continuous scan time before returning to the
operating channel. On active channels max_out_time is the parameter
used by the firmware to define the maximum time allowed out of the
operating channel. Since active channels' scan should also be fragmented
set max_out_time equal to frag_passive_dwell.
In addition:
- Set max_out_time and suspend_time if the firmware doesn't support
  fragmented scan to avoid unexpected behavior.
- Adjust max_out_time for second level of scan precedence.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/scan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 199f6fce0968..0ee0f81113fe 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -309,18 +309,18 @@ static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm,
 		goto not_bound;
 
 	params->suspend_time = 30;
-	params->max_out_time = 170;
+	params->max_out_time = 120;
 
 	if (iwl_mvm_low_latency(mvm)) {
 		if (mvm->fw->ucode_capa.api[0] &
 		    IWL_UCODE_TLV_API_FRAGMENTED_SCAN) {
 			params->suspend_time = 105;
-			params->max_out_time = 70;
 			/*
 			 * If there is more than one active interface make
 			 * passive scan more fragmented.
 			 */
 			frag_passive_dwell = (global_cnt < 2) ? 40 : 20;
+			params->max_out_time = frag_passive_dwell;
 		} else {
 			params->suspend_time = 120;
 			params->max_out_time = 120;
-- 
cgit v1.2.3


From 2a831e0806218c1f1036e6de67ffa1c890bd017e Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Mon, 29 Dec 2014 13:02:13 +0200
Subject: iwlwifi: mvm: add print of he nvm version

Print the nvm version in the log for debugging purposes.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/nvm.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index d55fd8e3654c..d8ac01d97e26 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -565,6 +565,8 @@ int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic)
 	mvm->nvm_data = iwl_parse_nvm_sections(mvm);
 	if (!mvm->nvm_data)
 		return -ENODATA;
+	IWL_DEBUG_EEPROM(mvm->trans->dev, "nvm version = %x\n",
+			 mvm->nvm_data->nvm_version);
 
 	return 0;
 }
-- 
cgit v1.2.3


From 3cae0734af7c17976ecf4e99a0447168e7fdf4cc Mon Sep 17 00:00:00 2001
From: David Spinadel <david.spinadel@intel.com>
Date: Mon, 29 Dec 2014 15:43:48 +0200
Subject: iwlwifi: mvm: scan dwell time corrections

Use only basic dwell time (10 ms for active scan and 110 for passive),
regardless of the number of the probes and the band, if it is
supported by the FW. The FW will add 3 ms for each probe sent and 10
ms for low band channels.
Add a TLV flag to indicate such support in FW.

This fix is needed to fix few bugs regarding scans that take too much time.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-file.h |  4 ++++
 drivers/net/wireless/iwlwifi/mvm/scan.c    | 17 ++++++++++++-----
 2 files changed, 16 insertions(+), 5 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index 731f1db90857..c4266b01bdb9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -241,6 +241,9 @@ enum iwl_ucode_tlv_flag {
  * @IWL_UCODE_TLV_API_SF_NO_DUMMY_NOTIF: ucode supports disabling dummy notif.
  * @IWL_UCODE_TLV_API_FRAGMENTED_SCAN: This ucode supports active dwell time
  *	longer than the passive one, which is essential for fragmented scan.
+ * @IWL_UCODE_TLV_API_BASIC_DWELL: use only basic dwell time in scan command,
+ *	regardless of the band or the number of the probes. FW will calculate
+ *	the actual dwell time.
  */
 enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_BT_COEX_SPLIT         = BIT(3),
@@ -248,6 +251,7 @@ enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_LMAC_SCAN		= BIT(6),
 	IWL_UCODE_TLV_API_SF_NO_DUMMY_NOTIF	= BIT(7),
 	IWL_UCODE_TLV_API_FRAGMENTED_SCAN	= BIT(8),
+	IWL_UCODE_TLV_API_BASIC_DWELL		= BIT(13),
 };
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 0ee0f81113fe..33e42841c9a2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -173,15 +173,21 @@ static void iwl_mvm_scan_fill_ssids(struct iwl_ssid_ie *cmd_ssid,
  * already included in the probe template, so we need to set only
  * req->n_ssids - 1 bits in addition to the first bit.
  */
-static u16 iwl_mvm_get_active_dwell(enum ieee80211_band band, int n_ssids)
+static u16 iwl_mvm_get_active_dwell(struct iwl_mvm *mvm,
+				    enum ieee80211_band band, int n_ssids)
 {
+	if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BASIC_DWELL)
+		return 10;
 	if (band == IEEE80211_BAND_2GHZ)
 		return 20  + 3 * (n_ssids + 1);
 	return 10  + 2 * (n_ssids + 1);
 }
 
-static u16 iwl_mvm_get_passive_dwell(enum ieee80211_band band)
+static u16 iwl_mvm_get_passive_dwell(struct iwl_mvm *mvm,
+				     enum ieee80211_band band)
 {
+	if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_BASIC_DWELL)
+			return 110;
 	return band == IEEE80211_BAND_2GHZ ? 100 + 20 : 100 + 10;
 }
 
@@ -337,7 +343,8 @@ static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm,
 		 */
 		if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 			u32 passive_dwell =
-				iwl_mvm_get_passive_dwell(IEEE80211_BAND_2GHZ);
+				iwl_mvm_get_passive_dwell(mvm,
+							  IEEE80211_BAND_2GHZ);
 			params->max_out_time = passive_dwell;
 		} else {
 			params->passive_fragmented = true;
@@ -354,8 +361,8 @@ not_bound:
 			params->dwell[band].passive = frag_passive_dwell;
 		else
 			params->dwell[band].passive =
-				iwl_mvm_get_passive_dwell(band);
-		params->dwell[band].active = iwl_mvm_get_active_dwell(band,
+				iwl_mvm_get_passive_dwell(mvm, band);
+		params->dwell[band].active = iwl_mvm_get_active_dwell(mvm, band,
 								      n_ssids);
 	}
 }
-- 
cgit v1.2.3


From 0294d9eece86dbe9bde7b21b097825106e3a3b4f Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 5 Jan 2015 16:52:55 +0200
Subject: iwlwifi: mvm: let the firmware configure the scheduler

A new host command can be used to configure the scheduler
instead of accessing the scheduler's registers from the
driver. This is easier and less error prone since accessing
the hardware at certain moments can lead to races with the
firmware.
Prefer to use the host command whenever it is available.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-file.h   |  3 ++
 drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h | 39 ++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/fw-api.h    | 57 -----------------------
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c  |  6 +--
 drivers/net/wireless/iwlwifi/mvm/mvm.h       |  6 +--
 drivers/net/wireless/iwlwifi/mvm/sta.c       |  8 ++--
 drivers/net/wireless/iwlwifi/mvm/tx.c        |  2 +-
 drivers/net/wireless/iwlwifi/mvm/utils.c     | 69 ++++++++++++++--------------
 drivers/net/wireless/iwlwifi/pcie/tx.c       | 14 ++++--
 9 files changed, 97 insertions(+), 107 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index c4266b01bdb9..32e8b5bf2b3d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -244,6 +244,8 @@ enum iwl_ucode_tlv_flag {
  * @IWL_UCODE_TLV_API_BASIC_DWELL: use only basic dwell time in scan command,
  *	regardless of the band or the number of the probes. FW will calculate
  *	the actual dwell time.
+ * @IWL_UCODE_TLV_API_SCD_CFG: This firmware can configure the scheduler
+ *	through the dedicated host command.
  */
 enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_BT_COEX_SPLIT         = BIT(3),
@@ -252,6 +254,7 @@ enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_SF_NO_DUMMY_NOTIF	= BIT(7),
 	IWL_UCODE_TLV_API_FRAGMENTED_SCAN	= BIT(8),
 	IWL_UCODE_TLV_API_BASIC_DWELL		= BIT(13),
+	IWL_UCODE_TLV_API_SCD_CFG		= BIT(15),
 };
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
index 5bca1f8bfebf..81c4ea3c6958 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h
@@ -592,4 +592,43 @@ static inline u32 iwl_mvm_get_scd_ssn(struct iwl_mvm_tx_resp *tx_resp)
 			    tx_resp->frame_count) & 0xfff;
 }
 
+/**
+ * struct iwl_scd_txq_cfg_cmd - New txq hw scheduler config command
+ * @token:
+ * @sta_id: station id
+ * @tid:
+ * @scd_queue: scheduler queue to confiug
+ * @enable: 1 queue enable, 0 queue disable
+ * @aggregate: 1 aggregated queue, 0 otherwise
+ * @tx_fifo: %enum iwl_mvm_tx_fifo
+ * @window: BA window size
+ * @ssn: SSN for the BA agreement
+ */
+struct iwl_scd_txq_cfg_cmd {
+	u8 token;
+	u8 sta_id;
+	u8 tid;
+	u8 scd_queue;
+	u8 enable;
+	u8 aggregate;
+	u8 tx_fifo;
+	u8 window;
+	__le16 ssn;
+	__le16 reserved;
+} __packed; /* SCD_QUEUE_CFG_CMD_API_S_VER_1 */
+
+/**
+ * struct iwl_scd_txq_cfg_rsp
+ * @token: taken from the command
+ * @sta_id: station id from the command
+ * @tid: tid from the command
+ * @scd_queue: scd_queue from the command
+ */
+struct iwl_scd_txq_cfg_rsp {
+	u8 token;
+	u8 sta_id;
+	u8 tid;
+	u8 scd_queue;
+} __packed; /* SCD_QUEUE_CFG_RSP_API_S_VER_1 */
+
 #endif /* __fw_api_tx_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 88af6dd2ceaa..b1e9dac186c6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -1680,63 +1680,6 @@ struct iwl_dts_measurement_notif {
 	__le32 voltage;
 } __packed; /* TEMPERATURE_MEASUREMENT_TRIGGER_NTFY_S */
 
-/**
- * enum iwl_scd_control - scheduler config command control flags
- * @IWL_SCD_CONTROL_RM_TID: remove TID from this queue
- * @IWL_SCD_CONTROL_SET_SSN: use the SSN and program it into HW
- */
-enum iwl_scd_control {
-	IWL_SCD_CONTROL_RM_TID	= BIT(4),
-	IWL_SCD_CONTROL_SET_SSN	= BIT(5),
-};
-
-/**
- * enum iwl_scd_flags - scheduler config command flags
- * @IWL_SCD_FLAGS_SHARE_TID: multiple TIDs map to this queue
- * @IWL_SCD_FLAGS_SHARE_RA: multiple RAs map to this queue
- * @IWL_SCD_FLAGS_DQA_ENABLED: DQA is enabled
- */
-enum iwl_scd_flags {
-	IWL_SCD_FLAGS_SHARE_TID		= BIT(0),
-	IWL_SCD_FLAGS_SHARE_RA		= BIT(1),
-	IWL_SCD_FLAGS_DQA_ENABLED	= BIT(2),
-};
-
-#define IWL_SCDQ_INVALID_STA	0xff
-
-/**
- * struct iwl_scd_txq_cfg_cmd - New txq hw scheduler config command
- * @token:	dialog token addba - unused legacy
- * @sta_id:	station id 4-bit
- * @tid:	TID 0..7
- * @scd_queue:	TFD queue num 0 .. 31
- * @enable:	1 queue enable, 0 queue disable
- * @aggregate:	1 aggregated queue, 0 otherwise
- * @tx_fifo:	tx fifo num 0..7
- * @window:	up to 64
- * @ssn:	starting seq num 12-bit
- * @control:	command control flags
- * @flags:	flags - see &enum iwl_scd_flags
- *
- * Note that every time the command is sent, all parameters must
- * be filled with the exception of
- *  - the SSN, which is only used with @IWL_SCD_CONTROL_SET_SSN
- *  - the window, which is only relevant when starting aggregation
- */
-struct iwl_scd_txq_cfg_cmd {
-	u8 token;
-	u8 sta_id;
-	u8 tid;
-	u8 scd_queue;
-	u8 enable;
-	u8 aggregate;
-	u8 tx_fifo;
-	u8 window;
-	__le16 ssn;
-	u8 control;
-	u8 flags;
-} __packed;
-
 /***********************************
  * TDLS API
  ***********************************/
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 7196b4d6b7cc..a3e9cd955e7d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -496,14 +496,14 @@ void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 
 	switch (vif->type) {
 	case NL80211_IFTYPE_P2P_DEVICE:
-		iwl_mvm_disable_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE);
+		iwl_mvm_disable_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, 0);
 		break;
 	case NL80211_IFTYPE_AP:
-		iwl_mvm_disable_txq(mvm, vif->cab_queue);
+		iwl_mvm_disable_txq(mvm, vif->cab_queue, 0);
 		/* fall through */
 	default:
 		for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
-			iwl_mvm_disable_txq(mvm, vif->hw_queue[ac]);
+			iwl_mvm_disable_txq(mvm, vif->hw_queue[ac], 0);
 	}
 }
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 6355127487dd..e9c05d70dde0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -858,9 +858,9 @@ static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm)
 	       (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_D0I3_SUPPORT);
 }
 
-static inline bool iwl_mvm_is_dqa_supported(struct iwl_mvm *mvm)
+static inline bool iwl_mvm_is_scd_cfg_supported(struct iwl_mvm *mvm)
 {
-	return mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_DQA_SUPPORT;
+	return mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_API_SCD_CFG;
 }
 
 extern const u8 iwl_mvm_ac_to_tx_fifo[];
@@ -1298,7 +1298,7 @@ static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)
 /* hw scheduler queue config */
 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn,
 			const struct iwl_trans_txq_scd_cfg *cfg);
-void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue);
+void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, u8 flags);
 
 static inline void iwl_mvm_enable_ac_txq(struct iwl_mvm *mvm, int queue,
 					 u8 fifo)
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index ad327984b099..b93a177b4a09 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -251,7 +251,7 @@ static void iwl_mvm_tdls_sta_deinit(struct iwl_mvm *mvm,
 	/* disable the TDLS STA-specific queues */
 	sta_msk = mvmsta->tfd_queue_msk;
 	for_each_set_bit(i, &sta_msk, sizeof(sta_msk))
-		iwl_mvm_disable_txq(mvm, i);
+		iwl_mvm_disable_txq(mvm, i, 0);
 }
 
 int iwl_mvm_add_sta(struct iwl_mvm *mvm,
@@ -465,7 +465,7 @@ void iwl_mvm_sta_drained_wk(struct work_struct *wk)
 			unsigned long i, msk = mvm->tfd_drained[sta_id];
 
 			for_each_set_bit(i, &msk, sizeof(msk))
-				iwl_mvm_disable_txq(mvm, i);
+				iwl_mvm_disable_txq(mvm, i, 0);
 
 			mvm->tfd_drained[sta_id] = 0;
 			IWL_DEBUG_TDLS(mvm, "Drained sta %d, with queues %ld\n",
@@ -1058,7 +1058,7 @@ int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 		iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false);
 
-		iwl_mvm_disable_txq(mvm, txq_id);
+		iwl_mvm_disable_txq(mvm, txq_id, 0);
 		return 0;
 	case IWL_AGG_STARTING:
 	case IWL_EMPTYING_HW_QUEUE_ADDBA:
@@ -1116,7 +1116,7 @@ int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 		iwl_mvm_sta_tx_agg(mvm, sta, tid, txq_id, false);
 
-		iwl_mvm_disable_txq(mvm, tid_data->txq_id);
+		iwl_mvm_disable_txq(mvm, tid_data->txq_id, 0);
 	}
 
 	mvm->queue_to_mac80211[tid_data->txq_id] =
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 1fff0f40f765..8ed55d628e93 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -496,7 +496,7 @@ static void iwl_mvm_check_ratid_empty(struct iwl_mvm *mvm,
 		IWL_DEBUG_TX_QUEUES(mvm,
 				    "Can continue DELBA flow ssn = next_recl = %d\n",
 				    tid_data->next_reclaimed);
-		iwl_mvm_disable_txq(mvm, tid_data->txq_id);
+		iwl_mvm_disable_txq(mvm, tid_data->txq_id, CMD_ASYNC);
 		tid_data->state = IWL_AGG_OFF;
 		/*
 		 * we can't hold the mutex - but since we are after a sequence
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index f0a114102c3f..85effe269a2a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -533,47 +533,46 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn,
 			const struct iwl_trans_txq_scd_cfg *cfg)
 {
-	if (iwl_mvm_is_dqa_supported(mvm)) {
-		struct iwl_scd_txq_cfg_cmd cmd = {
-			.scd_queue = queue,
-			.enable = 1,
-			.window = cfg->frame_limit,
-			.sta_id = cfg->sta_id,
-			.ssn = cpu_to_le16(ssn),
-			.tx_fifo = cfg->fifo,
-			.aggregate = cfg->aggregate,
-			.flags = IWL_SCD_FLAGS_DQA_ENABLED,
-			.tid = cfg->tid,
-			.control = IWL_SCD_CONTROL_SET_SSN,
-		};
-		int ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0,
-					       sizeof(cmd), &cmd);
-		if (ret)
-			IWL_ERR(mvm,
-				"Failed to configure queue %d on FIFO %d\n",
-				queue, cfg->fifo);
+	struct iwl_scd_txq_cfg_cmd cmd = {
+		.scd_queue = queue,
+		.enable = 1,
+		.window = cfg->frame_limit,
+		.sta_id = cfg->sta_id,
+		.ssn = cpu_to_le16(ssn),
+		.tx_fifo = cfg->fifo,
+		.aggregate = cfg->aggregate,
+		.tid = cfg->tid,
+	};
+
+	if (!iwl_mvm_is_scd_cfg_supported(mvm)) {
+		iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, cfg);
+		return;
 	}
 
-	iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn,
-				 iwl_mvm_is_dqa_supported(mvm) ? NULL : cfg);
+	iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL);
+	WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd),
+	     "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo);
 }
 
-void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue)
+void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, u8 flags)
 {
-	iwl_trans_txq_disable(mvm->trans, queue,
-			      !iwl_mvm_is_dqa_supported(mvm));
-
-	if (iwl_mvm_is_dqa_supported(mvm)) {
-		struct iwl_scd_txq_cfg_cmd cmd = {
-			.scd_queue = queue,
-			.enable = 0,
-		};
-		int ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, CMD_ASYNC,
-					       sizeof(cmd), &cmd);
-		if (ret)
-			IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n",
-				queue, ret);
+	struct iwl_scd_txq_cfg_cmd cmd = {
+		.scd_queue = queue,
+		.enable = 0,
+	};
+	int ret;
+
+	if (!iwl_mvm_is_scd_cfg_supported(mvm)) {
+		iwl_trans_txq_disable(mvm->trans, queue, true);
+		return;
 	}
+
+	iwl_trans_txq_disable(mvm->trans, queue, false);
+	ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags,
+				   sizeof(cmd), &cmd);
+	if (ret)
+		IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n",
+			queue, ret);
 }
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index c1c4c75026b2..d40cd4a67d6e 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1190,12 +1190,12 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 	 * Assumes that ssn_idx is valid (!= 0xFFF) */
 	trans_pcie->txq[txq_id].q.read_ptr = (ssn & 0xff);
 	trans_pcie->txq[txq_id].q.write_ptr = (ssn & 0xff);
+	iwl_write_direct32(trans, HBUS_TARG_WRPTR,
+			   (ssn & 0xff) | (txq_id << 8));
 
 	if (cfg) {
 		u8 frame_limit = cfg->frame_limit;
 
-		iwl_write_direct32(trans, HBUS_TARG_WRPTR,
-				   (ssn & 0xff) | (txq_id << 8));
 		iwl_write_prph(trans, SCD_QUEUE_RDPTR(txq_id), ssn);
 
 		/* Set up Tx window size and frame limit for this queue */
@@ -1220,11 +1220,17 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 		if (txq_id == trans_pcie->cmd_queue &&
 		    trans_pcie->scd_set_active)
 			iwl_scd_enable_set_active(trans, BIT(txq_id));
+
+		IWL_DEBUG_TX_QUEUES(trans,
+				    "Activate queue %d on FIFO %d WrPtr: %d\n",
+				    txq_id, fifo, ssn & 0xff);
+	} else {
+		IWL_DEBUG_TX_QUEUES(trans,
+				    "Activate queue %d WrPtr: %d\n",
+				    txq_id, ssn & 0xff);
 	}
 
 	trans_pcie->txq[txq_id].active = true;
-	IWL_DEBUG_TX_QUEUES(trans, "Activate queue %d on FIFO %d WrPtr: %d\n",
-			    txq_id, fifo, ssn & 0xff);
 }
 
 void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id,
-- 
cgit v1.2.3


From e39c1b5f5e8b157fdae0007523ffad270bcbcc3a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 9 Jan 2015 14:15:32 +0100
Subject: iwlwifi: mvm: add debugfs file for misbehaving U-APSD AP

As this functionality relies on getting a firmware notification
it is difficult to test. Allow accessing the data for it from
debugfs to be able to trigger all kinds of scenarios to test.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c | 31 ++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
index 8dc3ca9f4904..5fe14591e1c4 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
@@ -517,6 +517,34 @@ static ssize_t iwl_dbgfs_low_latency_read(struct file *file,
 	return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf));
 }
 
+static ssize_t iwl_dbgfs_uapsd_misbehaving_read(struct file *file,
+						char __user *user_buf,
+						size_t count, loff_t *ppos)
+{
+	struct ieee80211_vif *vif = file->private_data;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	char buf[20];
+	int len;
+
+	len = sprintf(buf, "%pM\n", mvmvif->uapsd_misbehaving_bssid);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t iwl_dbgfs_uapsd_misbehaving_write(struct ieee80211_vif *vif,
+						 char *buf, size_t count,
+						 loff_t *ppos)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_mvm *mvm = mvmvif->mvm;
+	bool ret;
+
+	mutex_lock(&mvm->mutex);
+	ret = mac_pton(buf, mvmvif->uapsd_misbehaving_bssid);
+	mutex_unlock(&mvm->mutex);
+
+	return ret ? count : -EINVAL;
+}
+
 #define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
 	_MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
 #define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
@@ -531,6 +559,7 @@ MVM_DEBUGFS_READ_FILE_OPS(mac_params);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20);
 
 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 {
@@ -564,6 +593,8 @@ void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir,
 				 S_IRUSR | S_IWUSR);
+	MVM_DEBUGFS_ADD_FILE_VIF(uapsd_misbehaving, mvmvif->dbgfs_dir,
+				 S_IRUSR | S_IWUSR);
 
 	if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
 	    mvmvif == mvm->bf_allowed_vif)
-- 
cgit v1.2.3


From 861383249d4d2e1019be79686e7250823fc102fd Mon Sep 17 00:00:00 2001
From: Ido Yariv <ido@wizery.com>
Date: Wed, 10 Dec 2014 12:39:27 -0500
Subject: iwlwifi: mvm: add support for dumping a secondary SRAM

Some HW modules have two SRAMs. In such cases add the secondary SRAM to
the list of dumped segments.

Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-8000.c     |  4 ++++
 drivers/net/wireless/iwlwifi/iwl-config.h   |  4 ++++
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 28 ++++++++++++++++++++++++----
 3 files changed, 32 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c
index 9eca5337ffde..d6c05eabb16f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-8000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-8000.c
@@ -84,6 +84,8 @@
 /* Memory offsets and lengths */
 #define IWL8260_DCCM_OFFSET		0x800000
 #define IWL8260_DCCM_LEN		0x18000
+#define IWL8260_DCCM2_OFFSET		0x880000
+#define IWL8260_DCCM2_LEN		0x8000
 #define IWL8260_SMEM_OFFSET		0x400000
 #define IWL8260_SMEM_LEN		0x68000
 
@@ -134,6 +136,8 @@ static const struct iwl_ht_params iwl8000_ht_params = {
 	.non_shared_ant = ANT_A,				\
 	.dccm_offset = IWL8260_DCCM_OFFSET,			\
 	.dccm_len = IWL8260_DCCM_LEN,				\
+	.dccm2_offset = IWL8260_DCCM2_OFFSET,			\
+	.dccm2_len = IWL8260_DCCM2_LEN,				\
 	.smem_offset = IWL8260_SMEM_OFFSET,			\
 	.smem_len = IWL8260_SMEM_LEN
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index 0eaafd88d97b..445bff690a63 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -263,6 +263,8 @@ struct iwl_pwr_tx_backoff {
  *	station can receive in VHT
  * @dccm_offset: offset from which DCCM begins
  * @dccm_len: length of DCCM (including runtime stack CCM)
+ * @dccm2_offset: offset from which the second DCCM begins
+ * @dccm2_len: length of the second DCCM
  * @smem_offset: offset from which the SMEM begins
  * @smem_len: the length of SMEM
  *
@@ -310,6 +312,8 @@ struct iwl_cfg {
 	unsigned int max_vht_ampdu_exponent;
 	const u32 dccm_offset;
 	const u32 dccm_len;
+	const u32 dccm2_offset;
+	const u32 dccm2_len;
 	const u32 smem_offset;
 	const u32 smem_len;
 };
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index c4552b5f5c19..b5f401da91a0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -778,14 +778,19 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	unsigned long flags;
 	int reg_val;
 	u32 smem_len = mvm->cfg->smem_len;
+	u32 sram2_len = mvm->cfg->dccm2_len;
 
 	lockdep_assert_held(&mvm->mutex);
 
 	/* W/A for 8000 HW family A-step */
-	if (mvm->cfg->smem_len &&
-	    mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
-	    CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP)
-		smem_len = 0x38000;
+	if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
+	    CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) {
+		if (smem_len)
+			smem_len = 0x38000;
+
+		if (sram2_len)
+			sram2_len = 0x10000;
+	}
 
 	fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
 	if (!fw_error_dump)
@@ -820,6 +825,10 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	if (smem_len)
 		file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
 
+	/* Make room for the secondary SRAM, if it exists */
+	if (sram2_len)
+		file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
+
 	dump_file = vzalloc(file_len);
 	if (!dump_file) {
 		kfree(fw_error_dump);
@@ -884,6 +893,17 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 					 dump_mem->data, smem_len);
 	}
 
+	if (sram2_len) {
+		dump_data = iwl_fw_error_next_data(dump_data);
+		dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
+		dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
+		dump_mem = (void *)dump_data->data;
+		dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
+		dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
+		iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
+					 dump_mem->data, sram2_len);
+	}
+
 	fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
 	fw_error_dump->op_mode_len = file_len;
 	if (fw_error_dump->trans_ptr)
-- 
cgit v1.2.3


From 04fd2c28226f4ace5a7e0a4343a34e6d7c20248b Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Mon, 15 Dec 2014 17:54:16 +0200
Subject: iwlwifi: mvm: add rxf and txf to dump data

When the FW is in error status - try to read the RXF and
TXF (all of them) and add them to the dump data.

This shouldn't happen in non-error statuses, as we don't
want to stop the RXF/TXF while they are running.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h |  21 +++
 drivers/net/wireless/iwlwifi/iwl-prph.h          |  18 +++
 drivers/net/wireless/iwlwifi/mvm/fw-api.h        |  35 +++++
 drivers/net/wireless/iwlwifi/mvm/fw.c            |  53 +++++++
 drivers/net/wireless/iwlwifi/mvm/mac80211.c      | 186 +++++++++++++++++++----
 drivers/net/wireless/iwlwifi/mvm/mvm.h           |  17 +++
 drivers/net/wireless/iwlwifi/mvm/ops.c           |   1 +
 7 files changed, 304 insertions(+), 27 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
index ec115bded88a..919a2548a92c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h
@@ -134,6 +134,27 @@ struct iwl_fw_error_dump_txcmd {
 	u8 data[];
 } __packed;
 
+/**
+ * struct iwl_fw_error_dump_fifo - RX/TX FIFO data
+ * @fifo_num: number of FIFO (starting from 0)
+ * @available_bytes: num of bytes available in FIFO (may be less than FIFO size)
+ * @wr_ptr: position of write pointer
+ * @rd_ptr: position of read pointer
+ * @fence_ptr: position of fence pointer
+ * @fence_mode: the current mode of the fence (before locking) -
+ *	0=follow RD pointer ; 1 = freeze
+ * @data: all of the FIFO's data
+ */
+struct iwl_fw_error_dump_fifo {
+	__le32 fifo_num;
+	__le32 available_bytes;
+	__le32 wr_ptr;
+	__le32 rd_ptr;
+	__le32 fence_ptr;
+	__le32 fence_mode;
+	u8 data[];
+} __packed;
+
 enum iwl_fw_error_dump_family {
 	IWL_FW_ERROR_DUMP_FAMILY_7 = 7,
 	IWL_FW_ERROR_DUMP_FAMILY_8 = 8,
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index 83ab4239082c..387a5aada0ee 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -359,12 +359,30 @@ enum secure_load_status_reg {
 
 /* Rx FIFO */
 #define RXF_SIZE_ADDR			(0xa00c88)
+#define RXF_RD_D_SPACE			(0xa00c40)
+#define RXF_RD_WR_PTR			(0xa00c50)
+#define RXF_RD_RD_PTR			(0xa00c54)
+#define RXF_RD_FENCE_PTR		(0xa00c4c)
+#define RXF_SET_FENCE_MODE		(0xa00c14)
+#define RXF_LD_WR2FENCE		(0xa00c1c)
+#define RXF_FIFO_RD_FENCE_INC		(0xa00c68)
 #define RXF_SIZE_BYTE_CND_POS		(7)
 #define RXF_SIZE_BYTE_CNT_MSK		(0x3ff << RXF_SIZE_BYTE_CND_POS)
+#define RXF_DIFF_FROM_PREV		(0x200)
 
 #define RXF_LD_FENCE_OFFSET_ADDR	(0xa00c10)
 #define RXF_FIFO_RD_FENCE_ADDR		(0xa00c0c)
 
+/* Tx FIFO */
+#define TXF_FIFO_ITEM_CNT		(0xa00438)
+#define TXF_WR_PTR			(0xa00414)
+#define TXF_RD_PTR			(0xa00410)
+#define TXF_FENCE_PTR			(0xa00418)
+#define TXF_LOCK_FENCE			(0xa00424)
+#define TXF_LARC_NUM			(0xa0043c)
+#define TXF_READ_MODIFY_DATA		(0xa00448)
+#define TXF_READ_MODIFY_ADDR		(0xa0044c)
+
 /* FW monitor */
 #define MON_BUFF_SAMPLE_CTL		(0xa03c00)
 #define MON_BUFF_BASE_ADDR		(0xa03c3c)
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index b1e9dac186c6..b3badec1d228 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -128,6 +128,9 @@ enum {
 	/* global key */
 	WEP_KEY = 0x20,
 
+	/* Memory */
+	SHARED_MEM_CFG = 0x25,
+
 	/* TDLS */
 	TDLS_CHANNEL_SWITCH_CMD = 0x27,
 	TDLS_CHANNEL_SWITCH_NOTIFICATION = 0xaa,
@@ -1821,4 +1824,36 @@ struct iwl_tdls_config_res {
 	struct iwl_tdls_config_sta_info_res sta_info[IWL_MVM_TDLS_STA_COUNT];
 } __packed; /* TDLS_CONFIG_RSP_API_S_VER_1 */
 
+#define TX_FIFO_MAX_NUM		8
+#define RX_FIFO_MAX_NUM		2
+
+/**
+ * Shared memory configuration information from the FW
+ *
+ * @shared_mem_addr: shared memory addr (pre 8000 HW set to 0x0 as MARBH is not
+ *	accessible)
+ * @shared_mem_size: shared memory size
+ * @sample_buff_addr: internal sample (mon/adc) buff addr (pre 8000 HW set to
+ *	0x0 as accessible only via DBGM RDAT)
+ * @sample_buff_size: internal sample buff size
+ * @txfifo_addr: start addr of TXF0 (excluding the context table 0.5KB), (pre
+ *	8000 HW set to 0x0 as not accessible)
+ * @txfifo_size: size of TXF0 ... TXF7
+ * @rxfifo_size: RXF1, RXF2 sizes. If there is no RXF2, it'll have a value of 0
+ * @page_buff_addr: used by UMAC and performance debug (page miss analysis),
+ *	when paging is not supported this should be 0
+ * @page_buff_size: size of %page_buff_addr
+ */
+struct iwl_shared_mem_cfg {
+	__le32 shared_mem_addr;
+	__le32 shared_mem_size;
+	__le32 sample_buff_addr;
+	__le32 sample_buff_size;
+	__le32 txfifo_addr;
+	__le32 txfifo_size[TX_FIFO_MAX_NUM];
+	__le32 rxfifo_size[RX_FIFO_MAX_NUM];
+	__le32 page_buff_addr;
+	__le32 page_buff_size;
+} __packed; /* SHARED_MEM_ALLOC_API_S_VER_1 */
+
 #endif /* __fw_api_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 52338b737223..2e12f41dd65b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -400,6 +400,57 @@ out:
 	return ret;
 }
 
+static void iwl_mvm_get_shared_mem_conf(struct iwl_mvm *mvm)
+{
+	struct iwl_host_cmd cmd = {
+		.id = SHARED_MEM_CFG,
+		.flags = CMD_WANT_SKB,
+		.data = { NULL, },
+		.len = { 0, },
+	};
+	struct iwl_rx_packet *pkt;
+	struct iwl_shared_mem_cfg *mem_cfg;
+	u32 i;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	if (WARN_ON(iwl_mvm_send_cmd(mvm, &cmd)))
+		return;
+
+	pkt = cmd.resp_pkt;
+	if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
+		IWL_ERR(mvm, "Bad return from SHARED_MEM_CFG (0x%08X)\n",
+			pkt->hdr.flags);
+		goto exit;
+	}
+
+	mem_cfg = (void *)pkt->data;
+
+	mvm->shared_mem_cfg.shared_mem_addr =
+		le32_to_cpu(mem_cfg->shared_mem_addr);
+	mvm->shared_mem_cfg.shared_mem_size =
+		le32_to_cpu(mem_cfg->shared_mem_size);
+	mvm->shared_mem_cfg.sample_buff_addr =
+		le32_to_cpu(mem_cfg->sample_buff_addr);
+	mvm->shared_mem_cfg.sample_buff_size =
+		le32_to_cpu(mem_cfg->sample_buff_size);
+	mvm->shared_mem_cfg.txfifo_addr = le32_to_cpu(mem_cfg->txfifo_addr);
+	for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++)
+		mvm->shared_mem_cfg.txfifo_size[i] =
+			le32_to_cpu(mem_cfg->txfifo_size[i]);
+	for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++)
+		mvm->shared_mem_cfg.rxfifo_size[i] =
+			le32_to_cpu(mem_cfg->rxfifo_size[i]);
+	mvm->shared_mem_cfg.page_buff_addr =
+		le32_to_cpu(mem_cfg->page_buff_addr);
+	mvm->shared_mem_cfg.page_buff_size =
+		le32_to_cpu(mem_cfg->page_buff_size);
+	IWL_DEBUG_INFO(mvm, "SHARED MEM CFG: got memory offsets/sizes\n");
+
+exit:
+	iwl_free_resp(&cmd);
+}
+
 void iwl_mvm_fw_dbg_collect(struct iwl_mvm *mvm)
 {
 	/* stop recording */
@@ -495,6 +546,8 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 		goto error;
 	}
 
+	iwl_mvm_get_shared_mem_conf(mvm);
+
 	ret = iwl_mvm_sf_update(mvm, NULL, false);
 	if (ret)
 		IWL_ERR(mvm, "Failed to initialize Smart Fifo\n");
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index b5f401da91a0..0ea0f0a2239a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -766,6 +766,132 @@ static void iwl_mvm_free_coredump(const void *data)
 	kfree(fw_error_dump);
 }
 
+static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
+			       struct iwl_fw_error_dump_data **dump_data)
+{
+	struct iwl_fw_error_dump_fifo *fifo_hdr;
+	u32 *fifo_data;
+	u32 fifo_len;
+	unsigned long flags;
+	int i, j;
+
+	if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
+		return;
+
+	/* Pull RXF data from all RXFs */
+	for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
+		/*
+		 * Keep aside the additional offset that might be needed for
+		 * next RXF
+		 */
+		u32 offset_diff = RXF_DIFF_FROM_PREV * i;
+
+		fifo_hdr = (void *)(*dump_data)->data;
+		fifo_data = (void *)fifo_hdr->data;
+		fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
+
+		/* No need to try to read the data if the length is 0 */
+		if (fifo_len == 0)
+			continue;
+
+		/* Add a TLV for the RXF */
+		(*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
+		(*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
+
+		fifo_hdr->fifo_num = cpu_to_le32(i);
+		fifo_hdr->available_bytes =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							RXF_RD_D_SPACE +
+							offset_diff));
+		fifo_hdr->wr_ptr =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							RXF_RD_WR_PTR +
+							offset_diff));
+		fifo_hdr->rd_ptr =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							RXF_RD_RD_PTR +
+							offset_diff));
+		fifo_hdr->fence_ptr =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							RXF_RD_FENCE_PTR +
+							offset_diff));
+		fifo_hdr->fence_mode =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							RXF_SET_FENCE_MODE +
+							offset_diff));
+
+		/* Lock fence */
+		iwl_trans_write_prph(mvm->trans,
+				     RXF_SET_FENCE_MODE + offset_diff, 0x1);
+		/* Set fence pointer to the same place like WR pointer */
+		iwl_trans_write_prph(mvm->trans,
+				     RXF_LD_WR2FENCE + offset_diff, 0x1);
+		/* Set fence offset */
+		iwl_trans_write_prph(mvm->trans,
+				     RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
+				     0x0);
+
+		/* Read FIFO */
+		fifo_len /= sizeof(u32); /* Size in DWORDS */
+		for (j = 0; j < fifo_len; j++)
+			fifo_data[j] = iwl_trans_read_prph(mvm->trans,
+							 RXF_FIFO_RD_FENCE_INC +
+							 offset_diff);
+		*dump_data = iwl_fw_error_next_data(*dump_data);
+	}
+
+	/* Pull TXF data from all TXFs */
+	for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
+		/* Mark the number of TXF we're pulling now */
+		iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
+
+		fifo_hdr = (void *)(*dump_data)->data;
+		fifo_data = (void *)fifo_hdr->data;
+		fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
+
+		/* No need to try to read the data if the length is 0 */
+		if (fifo_len == 0)
+			continue;
+
+		/* Add a TLV for the FIFO */
+		(*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
+		(*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
+
+		fifo_hdr->fifo_num = cpu_to_le32(i);
+		fifo_hdr->available_bytes =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							TXF_FIFO_ITEM_CNT));
+		fifo_hdr->wr_ptr =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							TXF_WR_PTR));
+		fifo_hdr->rd_ptr =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							TXF_RD_PTR));
+		fifo_hdr->fence_ptr =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							TXF_FENCE_PTR));
+		fifo_hdr->fence_mode =
+			cpu_to_le32(iwl_trans_read_prph(mvm->trans,
+							TXF_LOCK_FENCE));
+
+		/* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
+		iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
+				     TXF_WR_PTR);
+
+		/* Dummy-read to advance the read pointer to the head */
+		iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
+
+		/* Read FIFO */
+		fifo_len /= sizeof(u32); /* Size in DWORDS */
+		for (j = 0; j < fifo_len; j++)
+			fifo_data[j] = iwl_trans_read_prph(mvm->trans,
+							  TXF_READ_MODIFY_DATA);
+		*dump_data = iwl_fw_error_next_data(*dump_data);
+	}
+
+	iwl_trans_release_nic_access(mvm->trans, &flags);
+}
+
 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 {
 	struct iwl_fw_error_dump_file *dump_file;
@@ -774,9 +900,7 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 	struct iwl_fw_error_dump_mem *dump_mem;
 	struct iwl_mvm_dump_ptrs *fw_error_dump;
 	u32 sram_len, sram_ofs;
-	u32 file_len, rxf_len;
-	unsigned long flags;
-	int reg_val;
+	u32 file_len, fifo_data_len = 0;
 	u32 smem_len = mvm->cfg->smem_len;
 	u32 sram2_len = mvm->cfg->dccm2_len;
 
@@ -808,17 +932,39 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 		sram_len = mvm->cfg->dccm_len;
 	}
 
-	/* reading buffer size */
-	reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
-	rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
+	/* reading RXF/TXF sizes */
+	if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
+		struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
+		int i;
+
+		fifo_data_len = 0;
+
+		/* Count RXF size */
+		for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
+			if (!mem_cfg->rxfifo_size[i])
+				continue;
+
+			/* Add header info */
+			fifo_data_len += mem_cfg->rxfifo_size[i] +
+					 sizeof(*dump_data) +
+					 sizeof(struct iwl_fw_error_dump_fifo);
+		}
+
+		for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
+			if (!mem_cfg->txfifo_size[i])
+				continue;
 
-	/* the register holds the value divided by 128 */
-	rxf_len = rxf_len << 7;
+			/* Add header info */
+			fifo_data_len += mem_cfg->txfifo_size[i] +
+					 sizeof(*dump_data) +
+					 sizeof(struct iwl_fw_error_dump_fifo);
+		}
+	}
 
 	file_len = sizeof(*dump_file) +
-		   sizeof(*dump_data) * 3 +
+		   sizeof(*dump_data) * 2 +
 		   sram_len + sizeof(*dump_mem) +
-		   rxf_len +
+		   fifo_data_len +
 		   sizeof(*dump_info);
 
 	/* Make room for the SMEM, if it exists */
@@ -856,24 +1002,10 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 		sizeof(dump_info->bus_human_readable));
 
 	dump_data = iwl_fw_error_next_data(dump_data);
-	dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
-	dump_data->len = cpu_to_le32(rxf_len);
-
-	if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
-		u32 *rxf = (void *)dump_data->data;
-		int i;
+	/* We only dump the FIFOs if the FW is in error state */
+	if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
+		iwl_mvm_dump_fifos(mvm, &dump_data);
 
-		for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
-			iwl_trans_write_prph(mvm->trans,
-					     RXF_LD_FENCE_OFFSET_ADDR,
-					     i * sizeof(u32));
-			rxf[i] = iwl_trans_read_prph(mvm->trans,
-						     RXF_FIFO_RD_FENCE_ADDR);
-		}
-		iwl_trans_release_nic_access(mvm->trans, &flags);
-	}
-
-	dump_data = iwl_fw_error_next_data(dump_data);
 	dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
 	dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
 	dump_mem = (void *)dump_data->data;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index e9c05d70dde0..aa93ee794670 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -536,6 +536,18 @@ enum iwl_mvm_tdls_cs_state {
 	IWL_MVM_TDLS_SW_ACTIVE,
 };
 
+struct iwl_mvm_shared_mem_cfg {
+	u32 shared_mem_addr;
+	u32 shared_mem_size;
+	u32 sample_buff_addr;
+	u32 sample_buff_size;
+	u32 txfifo_addr;
+	u32 txfifo_size[TX_FIFO_MAX_NUM];
+	u32 rxfifo_size[RX_FIFO_MAX_NUM];
+	u32 page_buff_addr;
+	u32 page_buff_size;
+};
+
 struct iwl_mvm {
 	/* for logger access */
 	struct device *dev;
@@ -787,6 +799,8 @@ struct iwl_mvm {
 			u32 ch_sw_tm_ie;
 		} peer;
 	} tdls_cs;
+
+	struct iwl_mvm_shared_mem_cfg shared_mem_cfg;
 };
 
 /* Extract MVM priv from op_mode and _hw */
@@ -1002,6 +1016,9 @@ int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 			 struct iwl_device_cmd *cmd);
 int iwl_mvm_rx_mfuart_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 			    struct iwl_device_cmd *cmd);
+int iwl_mvm_rx_shared_mem_cfg_notif(struct iwl_mvm *mvm,
+				    struct iwl_rx_cmd_buffer *rxb,
+				    struct iwl_device_cmd *cmd);
 
 /* MVM PHY */
 int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 90143aa838be..8bf8c2a29e5e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -270,6 +270,7 @@ static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(MGMT_MCAST_KEY),
 	CMD(TX_CMD),
 	CMD(TXPATH_FLUSH),
+	CMD(SHARED_MEM_CFG),
 	CMD(MAC_CONTEXT_CMD),
 	CMD(TIME_EVENT_CMD),
 	CMD(TIME_EVENT_NOTIFICATION),
-- 
cgit v1.2.3


From 75e52472add9bb6aa219c491103d240c899cf432 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 14 Jan 2015 15:16:03 +0100
Subject: iwlwifi: mvm: sync statistics firmware API

The firmware API structs are split differently, synchronize
the struct splits with the current firmware definitions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw-api.h | 70 +++++++++++++++----------------
 drivers/net/wireless/iwlwifi/mvm/rx.c     |  4 +-
 2 files changed, 37 insertions(+), 37 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index b3badec1d228..1a934a64b358 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -1400,24 +1400,6 @@ struct mvm_statistics_div {
 	__le32 reserved2;
 } __packed; /* STATISTICS_SLOW_DIV_API_S_VER_2 */
 
-struct mvm_statistics_general_common {
-	__le32 temperature;   /* radio temperature */
-	__le32 temperature_m; /* radio voltage */
-	struct mvm_statistics_dbg dbg;
-	__le32 sleep_time;
-	__le32 slots_out;
-	__le32 slots_idle;
-	__le32 ttl_timestamp;
-	struct mvm_statistics_div div;
-	__le32 rx_enable_counter;
-	/*
-	 * num_of_sos_states:
-	 *  count the number of times we have to re-tune
-	 *  in order to get out of bad PHY status
-	 */
-	__le32 num_of_sos_states;
-} __packed; /* STATISTICS_GENERAL_API_S_VER_5 */
-
 struct mvm_statistics_rx_non_phy {
 	__le32 bogus_cts;	/* CTS received when not expecting CTS */
 	__le32 bogus_ack;	/* ACK received when not expecting ACK */
@@ -1490,6 +1472,23 @@ struct mvm_statistics_rx_ht_phy {
 	__le32 unsupport_mcs;
 } __packed;  /* STATISTICS_HT_RX_PHY_API_S_VER_1 */
 
+struct mvm_statistics_tx_non_phy {
+	__le32 preamble_cnt;
+	__le32 rx_detected_cnt;
+	__le32 bt_prio_defer_cnt;
+	__le32 bt_prio_kill_cnt;
+	__le32 few_bytes_cnt;
+	__le32 cts_timeout;
+	__le32 ack_timeout;
+	__le32 expected_ack_cnt;
+	__le32 actual_ack_cnt;
+	__le32 dump_msdu_cnt;
+	__le32 burst_abort_next_frame_mismatch_cnt;
+	__le32 burst_abort_missing_next_frame_cnt;
+	__le32 cts_timeout_collision;
+	__le32 ack_or_ba_timeout_collision;
+} __packed; /* STATISTICS_TX_NON_PHY_API_S_VER_3 */
+
 #define MAX_CHAINS 3
 
 struct mvm_statistics_tx_non_phy_agg {
@@ -1520,20 +1519,7 @@ struct mvm_statistics_tx_channel_width {
 }; /* STATISTICS_TX_CHANNEL_WIDTH_API_S_VER_1 */
 
 struct mvm_statistics_tx {
-	__le32 preamble_cnt;
-	__le32 rx_detected_cnt;
-	__le32 bt_prio_defer_cnt;
-	__le32 bt_prio_kill_cnt;
-	__le32 few_bytes_cnt;
-	__le32 cts_timeout;
-	__le32 ack_timeout;
-	__le32 expected_ack_cnt;
-	__le32 actual_ack_cnt;
-	__le32 dump_msdu_cnt;
-	__le32 burst_abort_next_frame_mismatch_cnt;
-	__le32 burst_abort_missing_next_frame_cnt;
-	__le32 cts_timeout_collision;
-	__le32 ack_or_ba_timeout_collision;
+	struct mvm_statistics_tx_non_phy general;
 	struct mvm_statistics_tx_non_phy_agg agg;
 	struct mvm_statistics_tx_channel_width channel_width;
 } __packed; /* STATISTICS_TX_API_S_VER_4 */
@@ -1551,7 +1537,21 @@ struct mvm_statistics_bt_activity {
 } __packed;  /* STATISTICS_BT_ACTIVITY_API_S_VER_1 */
 
 struct mvm_statistics_general {
-	struct mvm_statistics_general_common common;
+	__le32 radio_temperature;
+	__le32 radio_voltage;
+	struct mvm_statistics_dbg dbg;
+	__le32 sleep_time;
+	__le32 slots_out;
+	__le32 slots_idle;
+	__le32 ttl_timestamp;
+	struct mvm_statistics_div slow_div;
+	__le32 rx_enable_counter;
+	/*
+	 * num_of_sos_states:
+	 *  count the number of times we have to re-tune
+	 *  in order to get out of bad PHY status
+	 */
+	__le32 num_of_sos_states;
 	__le32 beacon_filtered;
 	__le32 missed_beacons;
 	__s8 beacon_filter_average_energy;
@@ -1585,12 +1585,12 @@ struct mvm_statistics_rx {
  * one channel that has just been scanned.
  */
 
-struct iwl_notif_statistics { /* STATISTICS_NTFY_API_S_VER_8 */
+struct iwl_notif_statistics {
 	__le32 flag;
 	struct mvm_statistics_rx rx;
 	struct mvm_statistics_tx tx;
 	struct mvm_statistics_general general;
-} __packed;
+} __packed; /* STATISTICS_NTFY_API_S_VER_8 */
 
 /***********************************
  * Smart Fifo API
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 94b6e7297a1e..02e0f3703632 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -511,13 +511,13 @@ int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
 {
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
 	struct iwl_notif_statistics *stats = (void *)&pkt->data;
-	struct mvm_statistics_general_common *common = &stats->general.common;
 	struct iwl_mvm_stat_data data = {
 		.stats = stats,
 		.mvm = mvm,
 	};
 
-	iwl_mvm_tt_temp_changed(mvm, le32_to_cpu(common->temperature));
+	iwl_mvm_tt_temp_changed(mvm,
+				le32_to_cpu(stats->general.radio_temperature));
 
 	iwl_mvm_update_rx_statistics(mvm, stats);
 
-- 
cgit v1.2.3


From d19ac5897163aacb9d485a435f4d98f6fb209d77 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 14 Jan 2015 15:54:18 +0100
Subject: iwlwifi: mvm: move statistics API to new header file

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h | 277 ++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/fw-api.h       | 209 +-----------------
 2 files changed, 278 insertions(+), 208 deletions(-)
 create mode 100644 drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h
new file mode 100644
index 000000000000..bda3a3691f20
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h
@@ -0,0 +1,277 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ *
+ * 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
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+#ifndef __fw_api_stats_h__
+#define __fw_api_stats_h__
+
+struct mvm_statistics_dbg {
+	__le32 burst_check;
+	__le32 burst_count;
+	__le32 wait_for_silence_timeout_cnt;
+	__le32 reserved[3];
+} __packed; /* STATISTICS_DEBUG_API_S_VER_2 */
+
+struct mvm_statistics_div {
+	__le32 tx_on_a;
+	__le32 tx_on_b;
+	__le32 exec_time;
+	__le32 probe_time;
+	__le32 rssi_ant;
+	__le32 reserved2;
+} __packed; /* STATISTICS_SLOW_DIV_API_S_VER_2 */
+
+struct mvm_statistics_rx_non_phy {
+	__le32 bogus_cts;	/* CTS received when not expecting CTS */
+	__le32 bogus_ack;	/* ACK received when not expecting ACK */
+	__le32 non_bssid_frames;	/* number of frames with BSSID that
+					 * doesn't belong to the STA BSSID */
+	__le32 filtered_frames;	/* count frames that were dumped in the
+				 * filtering process */
+	__le32 non_channel_beacons;	/* beacons with our bss id but not on
+					 * our serving channel */
+	__le32 channel_beacons;	/* beacons with our bss id and in our
+				 * serving channel */
+	__le32 num_missed_bcon;	/* number of missed beacons */
+	__le32 adc_rx_saturation_time;	/* count in 0.8us units the time the
+					 * ADC was in saturation */
+	__le32 ina_detection_search_time;/* total time (in 0.8us) searched
+					  * for INA */
+	__le32 beacon_silence_rssi_a;	/* RSSI silence after beacon frame */
+	__le32 beacon_silence_rssi_b;	/* RSSI silence after beacon frame */
+	__le32 beacon_silence_rssi_c;	/* RSSI silence after beacon frame */
+	__le32 interference_data_flag;	/* flag for interference data
+					 * availability. 1 when data is
+					 * available. */
+	__le32 channel_load;		/* counts RX Enable time in uSec */
+	__le32 dsp_false_alarms;	/* DSP false alarm (both OFDM
+					 * and CCK) counter */
+	__le32 beacon_rssi_a;
+	__le32 beacon_rssi_b;
+	__le32 beacon_rssi_c;
+	__le32 beacon_energy_a;
+	__le32 beacon_energy_b;
+	__le32 beacon_energy_c;
+	__le32 num_bt_kills;
+	__le32 mac_id;
+	__le32 directed_data_mpdu;
+} __packed; /* STATISTICS_RX_NON_PHY_API_S_VER_3 */
+
+struct mvm_statistics_rx_phy {
+	__le32 ina_cnt;
+	__le32 fina_cnt;
+	__le32 plcp_err;
+	__le32 crc32_err;
+	__le32 overrun_err;
+	__le32 early_overrun_err;
+	__le32 crc32_good;
+	__le32 false_alarm_cnt;
+	__le32 fina_sync_err_cnt;
+	__le32 sfd_timeout;
+	__le32 fina_timeout;
+	__le32 unresponded_rts;
+	__le32 rxe_frame_limit_overrun;
+	__le32 sent_ack_cnt;
+	__le32 sent_cts_cnt;
+	__le32 sent_ba_rsp_cnt;
+	__le32 dsp_self_kill;
+	__le32 mh_format_err;
+	__le32 re_acq_main_rssi_sum;
+	__le32 reserved;
+} __packed; /* STATISTICS_RX_PHY_API_S_VER_2 */
+
+struct mvm_statistics_rx_ht_phy {
+	__le32 plcp_err;
+	__le32 overrun_err;
+	__le32 early_overrun_err;
+	__le32 crc32_good;
+	__le32 crc32_err;
+	__le32 mh_format_err;
+	__le32 agg_crc32_good;
+	__le32 agg_mpdu_cnt;
+	__le32 agg_cnt;
+	__le32 unsupport_mcs;
+} __packed;  /* STATISTICS_HT_RX_PHY_API_S_VER_1 */
+
+struct mvm_statistics_tx_non_phy {
+	__le32 preamble_cnt;
+	__le32 rx_detected_cnt;
+	__le32 bt_prio_defer_cnt;
+	__le32 bt_prio_kill_cnt;
+	__le32 few_bytes_cnt;
+	__le32 cts_timeout;
+	__le32 ack_timeout;
+	__le32 expected_ack_cnt;
+	__le32 actual_ack_cnt;
+	__le32 dump_msdu_cnt;
+	__le32 burst_abort_next_frame_mismatch_cnt;
+	__le32 burst_abort_missing_next_frame_cnt;
+	__le32 cts_timeout_collision;
+	__le32 ack_or_ba_timeout_collision;
+} __packed; /* STATISTICS_TX_NON_PHY_API_S_VER_3 */
+
+#define MAX_CHAINS 3
+
+struct mvm_statistics_tx_non_phy_agg {
+	__le32 ba_timeout;
+	__le32 ba_reschedule_frames;
+	__le32 scd_query_agg_frame_cnt;
+	__le32 scd_query_no_agg;
+	__le32 scd_query_agg;
+	__le32 scd_query_mismatch;
+	__le32 frame_not_ready;
+	__le32 underrun;
+	__le32 bt_prio_kill;
+	__le32 rx_ba_rsp_cnt;
+	__s8 txpower[MAX_CHAINS];
+	__s8 reserved;
+	__le32 reserved2;
+} __packed; /* STATISTICS_TX_NON_PHY_AGG_API_S_VER_1 */
+
+struct mvm_statistics_tx_channel_width {
+	__le32 ext_cca_narrow_ch20[1];
+	__le32 ext_cca_narrow_ch40[2];
+	__le32 ext_cca_narrow_ch80[3];
+	__le32 ext_cca_narrow_ch160[4];
+	__le32 last_tx_ch_width_indx;
+	__le32 rx_detected_per_ch_width[4];
+	__le32 success_per_ch_width[4];
+	__le32 fail_per_ch_width[4];
+}; /* STATISTICS_TX_CHANNEL_WIDTH_API_S_VER_1 */
+
+struct mvm_statistics_tx {
+	struct mvm_statistics_tx_non_phy general;
+	struct mvm_statistics_tx_non_phy_agg agg;
+	struct mvm_statistics_tx_channel_width channel_width;
+} __packed; /* STATISTICS_TX_API_S_VER_4 */
+
+
+struct mvm_statistics_bt_activity {
+	__le32 hi_priority_tx_req_cnt;
+	__le32 hi_priority_tx_denied_cnt;
+	__le32 lo_priority_tx_req_cnt;
+	__le32 lo_priority_tx_denied_cnt;
+	__le32 hi_priority_rx_req_cnt;
+	__le32 hi_priority_rx_denied_cnt;
+	__le32 lo_priority_rx_req_cnt;
+	__le32 lo_priority_rx_denied_cnt;
+} __packed;  /* STATISTICS_BT_ACTIVITY_API_S_VER_1 */
+
+struct mvm_statistics_general {
+	__le32 radio_temperature;
+	__le32 radio_voltage;
+	struct mvm_statistics_dbg dbg;
+	__le32 sleep_time;
+	__le32 slots_out;
+	__le32 slots_idle;
+	__le32 ttl_timestamp;
+	struct mvm_statistics_div slow_div;
+	__le32 rx_enable_counter;
+	/*
+	 * num_of_sos_states:
+	 *  count the number of times we have to re-tune
+	 *  in order to get out of bad PHY status
+	 */
+	__le32 num_of_sos_states;
+	__le32 beacon_filtered;
+	__le32 missed_beacons;
+	__s8 beacon_filter_average_energy;
+	__s8 beacon_filter_reason;
+	__s8 beacon_filter_current_energy;
+	__s8 beacon_filter_reserved;
+	__le32 beacon_filter_delta_time;
+	struct mvm_statistics_bt_activity bt_activity;
+} __packed; /* STATISTICS_GENERAL_API_S_VER_5 */
+
+struct mvm_statistics_rx {
+	struct mvm_statistics_rx_phy ofdm;
+	struct mvm_statistics_rx_phy cck;
+	struct mvm_statistics_rx_non_phy general;
+	struct mvm_statistics_rx_ht_phy ofdm_ht;
+} __packed; /* STATISTICS_RX_API_S_VER_3 */
+
+/*
+ * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
+ *
+ * By default, uCode issues this notification after receiving a beacon
+ * while associated.  To disable this behavior, set DISABLE_NOTIF flag in the
+ * REPLY_STATISTICS_CMD 0x9c, above.
+ *
+ * Statistics counters continue to increment beacon after beacon, but are
+ * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
+ * 0x9c with CLEAR_STATS bit set (see above).
+ *
+ * uCode also issues this notification during scans.  uCode clears statistics
+ * appropriately so that each notification contains statistics for only the
+ * one channel that has just been scanned.
+ */
+
+struct iwl_notif_statistics {
+	__le32 flag;
+	struct mvm_statistics_rx rx;
+	struct mvm_statistics_tx tx;
+	struct mvm_statistics_general general;
+} __packed; /* STATISTICS_NTFY_API_S_VER_8 */
+
+#endif /* __fw_api_stats_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 1a934a64b358..b56154fe8ec5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -74,6 +74,7 @@
 #include "fw-api-d3.h"
 #include "fw-api-coex.h"
 #include "fw-api-scan.h"
+#include "fw-api-stats.h"
 
 /* Tx queue numbers */
 enum {
@@ -1384,214 +1385,6 @@ struct iwl_mvm_marker {
 	__le32 metadata[0];
 } __packed; /* MARKER_API_S_VER_1 */
 
-struct mvm_statistics_dbg {
-	__le32 burst_check;
-	__le32 burst_count;
-	__le32 wait_for_silence_timeout_cnt;
-	__le32 reserved[3];
-} __packed; /* STATISTICS_DEBUG_API_S_VER_2 */
-
-struct mvm_statistics_div {
-	__le32 tx_on_a;
-	__le32 tx_on_b;
-	__le32 exec_time;
-	__le32 probe_time;
-	__le32 rssi_ant;
-	__le32 reserved2;
-} __packed; /* STATISTICS_SLOW_DIV_API_S_VER_2 */
-
-struct mvm_statistics_rx_non_phy {
-	__le32 bogus_cts;	/* CTS received when not expecting CTS */
-	__le32 bogus_ack;	/* ACK received when not expecting ACK */
-	__le32 non_bssid_frames;	/* number of frames with BSSID that
-					 * doesn't belong to the STA BSSID */
-	__le32 filtered_frames;	/* count frames that were dumped in the
-				 * filtering process */
-	__le32 non_channel_beacons;	/* beacons with our bss id but not on
-					 * our serving channel */
-	__le32 channel_beacons;	/* beacons with our bss id and in our
-				 * serving channel */
-	__le32 num_missed_bcon;	/* number of missed beacons */
-	__le32 adc_rx_saturation_time;	/* count in 0.8us units the time the
-					 * ADC was in saturation */
-	__le32 ina_detection_search_time;/* total time (in 0.8us) searched
-					  * for INA */
-	__le32 beacon_silence_rssi_a;	/* RSSI silence after beacon frame */
-	__le32 beacon_silence_rssi_b;	/* RSSI silence after beacon frame */
-	__le32 beacon_silence_rssi_c;	/* RSSI silence after beacon frame */
-	__le32 interference_data_flag;	/* flag for interference data
-					 * availability. 1 when data is
-					 * available. */
-	__le32 channel_load;		/* counts RX Enable time in uSec */
-	__le32 dsp_false_alarms;	/* DSP false alarm (both OFDM
-					 * and CCK) counter */
-	__le32 beacon_rssi_a;
-	__le32 beacon_rssi_b;
-	__le32 beacon_rssi_c;
-	__le32 beacon_energy_a;
-	__le32 beacon_energy_b;
-	__le32 beacon_energy_c;
-	__le32 num_bt_kills;
-	__le32 mac_id;
-	__le32 directed_data_mpdu;
-} __packed; /* STATISTICS_RX_NON_PHY_API_S_VER_3 */
-
-struct mvm_statistics_rx_phy {
-	__le32 ina_cnt;
-	__le32 fina_cnt;
-	__le32 plcp_err;
-	__le32 crc32_err;
-	__le32 overrun_err;
-	__le32 early_overrun_err;
-	__le32 crc32_good;
-	__le32 false_alarm_cnt;
-	__le32 fina_sync_err_cnt;
-	__le32 sfd_timeout;
-	__le32 fina_timeout;
-	__le32 unresponded_rts;
-	__le32 rxe_frame_limit_overrun;
-	__le32 sent_ack_cnt;
-	__le32 sent_cts_cnt;
-	__le32 sent_ba_rsp_cnt;
-	__le32 dsp_self_kill;
-	__le32 mh_format_err;
-	__le32 re_acq_main_rssi_sum;
-	__le32 reserved;
-} __packed; /* STATISTICS_RX_PHY_API_S_VER_2 */
-
-struct mvm_statistics_rx_ht_phy {
-	__le32 plcp_err;
-	__le32 overrun_err;
-	__le32 early_overrun_err;
-	__le32 crc32_good;
-	__le32 crc32_err;
-	__le32 mh_format_err;
-	__le32 agg_crc32_good;
-	__le32 agg_mpdu_cnt;
-	__le32 agg_cnt;
-	__le32 unsupport_mcs;
-} __packed;  /* STATISTICS_HT_RX_PHY_API_S_VER_1 */
-
-struct mvm_statistics_tx_non_phy {
-	__le32 preamble_cnt;
-	__le32 rx_detected_cnt;
-	__le32 bt_prio_defer_cnt;
-	__le32 bt_prio_kill_cnt;
-	__le32 few_bytes_cnt;
-	__le32 cts_timeout;
-	__le32 ack_timeout;
-	__le32 expected_ack_cnt;
-	__le32 actual_ack_cnt;
-	__le32 dump_msdu_cnt;
-	__le32 burst_abort_next_frame_mismatch_cnt;
-	__le32 burst_abort_missing_next_frame_cnt;
-	__le32 cts_timeout_collision;
-	__le32 ack_or_ba_timeout_collision;
-} __packed; /* STATISTICS_TX_NON_PHY_API_S_VER_3 */
-
-#define MAX_CHAINS 3
-
-struct mvm_statistics_tx_non_phy_agg {
-	__le32 ba_timeout;
-	__le32 ba_reschedule_frames;
-	__le32 scd_query_agg_frame_cnt;
-	__le32 scd_query_no_agg;
-	__le32 scd_query_agg;
-	__le32 scd_query_mismatch;
-	__le32 frame_not_ready;
-	__le32 underrun;
-	__le32 bt_prio_kill;
-	__le32 rx_ba_rsp_cnt;
-	__s8 txpower[MAX_CHAINS];
-	__s8 reserved;
-	__le32 reserved2;
-} __packed; /* STATISTICS_TX_NON_PHY_AGG_API_S_VER_1 */
-
-struct mvm_statistics_tx_channel_width {
-	__le32 ext_cca_narrow_ch20[1];
-	__le32 ext_cca_narrow_ch40[2];
-	__le32 ext_cca_narrow_ch80[3];
-	__le32 ext_cca_narrow_ch160[4];
-	__le32 last_tx_ch_width_indx;
-	__le32 rx_detected_per_ch_width[4];
-	__le32 success_per_ch_width[4];
-	__le32 fail_per_ch_width[4];
-}; /* STATISTICS_TX_CHANNEL_WIDTH_API_S_VER_1 */
-
-struct mvm_statistics_tx {
-	struct mvm_statistics_tx_non_phy general;
-	struct mvm_statistics_tx_non_phy_agg agg;
-	struct mvm_statistics_tx_channel_width channel_width;
-} __packed; /* STATISTICS_TX_API_S_VER_4 */
-
-
-struct mvm_statistics_bt_activity {
-	__le32 hi_priority_tx_req_cnt;
-	__le32 hi_priority_tx_denied_cnt;
-	__le32 lo_priority_tx_req_cnt;
-	__le32 lo_priority_tx_denied_cnt;
-	__le32 hi_priority_rx_req_cnt;
-	__le32 hi_priority_rx_denied_cnt;
-	__le32 lo_priority_rx_req_cnt;
-	__le32 lo_priority_rx_denied_cnt;
-} __packed;  /* STATISTICS_BT_ACTIVITY_API_S_VER_1 */
-
-struct mvm_statistics_general {
-	__le32 radio_temperature;
-	__le32 radio_voltage;
-	struct mvm_statistics_dbg dbg;
-	__le32 sleep_time;
-	__le32 slots_out;
-	__le32 slots_idle;
-	__le32 ttl_timestamp;
-	struct mvm_statistics_div slow_div;
-	__le32 rx_enable_counter;
-	/*
-	 * num_of_sos_states:
-	 *  count the number of times we have to re-tune
-	 *  in order to get out of bad PHY status
-	 */
-	__le32 num_of_sos_states;
-	__le32 beacon_filtered;
-	__le32 missed_beacons;
-	__s8 beacon_filter_average_energy;
-	__s8 beacon_filter_reason;
-	__s8 beacon_filter_current_energy;
-	__s8 beacon_filter_reserved;
-	__le32 beacon_filter_delta_time;
-	struct mvm_statistics_bt_activity bt_activity;
-} __packed; /* STATISTICS_GENERAL_API_S_VER_5 */
-
-struct mvm_statistics_rx {
-	struct mvm_statistics_rx_phy ofdm;
-	struct mvm_statistics_rx_phy cck;
-	struct mvm_statistics_rx_non_phy general;
-	struct mvm_statistics_rx_ht_phy ofdm_ht;
-} __packed; /* STATISTICS_RX_API_S_VER_3 */
-
-/*
- * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
- *
- * By default, uCode issues this notification after receiving a beacon
- * while associated.  To disable this behavior, set DISABLE_NOTIF flag in the
- * REPLY_STATISTICS_CMD 0x9c, above.
- *
- * Statistics counters continue to increment beacon after beacon, but are
- * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
- * 0x9c with CLEAR_STATS bit set (see above).
- *
- * uCode also issues this notification during scans.  uCode clears statistics
- * appropriately so that each notification contains statistics for only the
- * one channel that has just been scanned.
- */
-
-struct iwl_notif_statistics {
-	__le32 flag;
-	struct mvm_statistics_rx rx;
-	struct mvm_statistics_tx tx;
-	struct mvm_statistics_general general;
-} __packed; /* STATISTICS_NTFY_API_S_VER_8 */
-
 /***********************************
  * Smart Fifo API
  ***********************************/
-- 
cgit v1.2.3


From 93d17cceb2620440aa3171e90b0ea69a97ac305d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 15 Jan 2015 12:59:26 +0100
Subject: iwlwifi: mvm: generate statistics debugfs code

There's no need to duplicate the structure field name in the string,
just generate the string in the macro that's there anyway. To keep
the debugfs output the same, rename one (otherwise unused) field.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs.c      | 162 +++++++++++-------------
 drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h |   2 +-
 2 files changed, 78 insertions(+), 86 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index afd1986a3216..82c09d86af8c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -654,10 +654,10 @@ out:
 	return ret ?: count;
 }
 
-#define PRINT_STATS_LE32(_str, _val)					\
+#define PRINT_STATS_LE32(_struct, _memb)				\
 			 pos += scnprintf(buf + pos, bufsz - pos,	\
-					  fmt_table, _str,		\
-					  le32_to_cpu(_val))
+					  fmt_table, #_memb,		\
+					  le32_to_cpu(_struct->_memb))
 
 static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 					  char __user *user_buf, size_t count,
@@ -692,97 +692,89 @@ static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 
 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 			 "Statistics_Rx - OFDM");
-	PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt);
-	PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt);
-	PRINT_STATS_LE32("plcp_err", ofdm->plcp_err);
-	PRINT_STATS_LE32("crc32_err", ofdm->crc32_err);
-	PRINT_STATS_LE32("overrun_err", ofdm->overrun_err);
-	PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err);
-	PRINT_STATS_LE32("crc32_good", ofdm->crc32_good);
-	PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt);
-	PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt);
-	PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout);
-	PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout);
-	PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts);
-	PRINT_STATS_LE32("rxe_frame_lmt_overrun",
-			 ofdm->rxe_frame_limit_overrun);
-	PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt);
-	PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt);
-	PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt);
-	PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill);
-	PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err);
-	PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum);
-	PRINT_STATS_LE32("reserved", ofdm->reserved);
+	PRINT_STATS_LE32(ofdm, ina_cnt);
+	PRINT_STATS_LE32(ofdm, fina_cnt);
+	PRINT_STATS_LE32(ofdm, plcp_err);
+	PRINT_STATS_LE32(ofdm, crc32_err);
+	PRINT_STATS_LE32(ofdm, overrun_err);
+	PRINT_STATS_LE32(ofdm, early_overrun_err);
+	PRINT_STATS_LE32(ofdm, crc32_good);
+	PRINT_STATS_LE32(ofdm, false_alarm_cnt);
+	PRINT_STATS_LE32(ofdm, fina_sync_err_cnt);
+	PRINT_STATS_LE32(ofdm, sfd_timeout);
+	PRINT_STATS_LE32(ofdm, fina_timeout);
+	PRINT_STATS_LE32(ofdm, unresponded_rts);
+	PRINT_STATS_LE32(ofdm, rxe_frame_lmt_overrun);
+	PRINT_STATS_LE32(ofdm, sent_ack_cnt);
+	PRINT_STATS_LE32(ofdm, sent_cts_cnt);
+	PRINT_STATS_LE32(ofdm, sent_ba_rsp_cnt);
+	PRINT_STATS_LE32(ofdm, dsp_self_kill);
+	PRINT_STATS_LE32(ofdm, mh_format_err);
+	PRINT_STATS_LE32(ofdm, re_acq_main_rssi_sum);
+	PRINT_STATS_LE32(ofdm, reserved);
 
 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 			 "Statistics_Rx - CCK");
-	PRINT_STATS_LE32("ina_cnt", cck->ina_cnt);
-	PRINT_STATS_LE32("fina_cnt", cck->fina_cnt);
-	PRINT_STATS_LE32("plcp_err", cck->plcp_err);
-	PRINT_STATS_LE32("crc32_err", cck->crc32_err);
-	PRINT_STATS_LE32("overrun_err", cck->overrun_err);
-	PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err);
-	PRINT_STATS_LE32("crc32_good", cck->crc32_good);
-	PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt);
-	PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt);
-	PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout);
-	PRINT_STATS_LE32("fina_timeout", cck->fina_timeout);
-	PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts);
-	PRINT_STATS_LE32("rxe_frame_lmt_overrun",
-			 cck->rxe_frame_limit_overrun);
-	PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt);
-	PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt);
-	PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt);
-	PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill);
-	PRINT_STATS_LE32("mh_format_err", cck->mh_format_err);
-	PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum);
-	PRINT_STATS_LE32("reserved", cck->reserved);
+	PRINT_STATS_LE32(cck, ina_cnt);
+	PRINT_STATS_LE32(cck, fina_cnt);
+	PRINT_STATS_LE32(cck, plcp_err);
+	PRINT_STATS_LE32(cck, crc32_err);
+	PRINT_STATS_LE32(cck, overrun_err);
+	PRINT_STATS_LE32(cck, early_overrun_err);
+	PRINT_STATS_LE32(cck, crc32_good);
+	PRINT_STATS_LE32(cck, false_alarm_cnt);
+	PRINT_STATS_LE32(cck, fina_sync_err_cnt);
+	PRINT_STATS_LE32(cck, sfd_timeout);
+	PRINT_STATS_LE32(cck, fina_timeout);
+	PRINT_STATS_LE32(cck, unresponded_rts);
+	PRINT_STATS_LE32(cck, rxe_frame_lmt_overrun);
+	PRINT_STATS_LE32(cck, sent_ack_cnt);
+	PRINT_STATS_LE32(cck, sent_cts_cnt);
+	PRINT_STATS_LE32(cck, sent_ba_rsp_cnt);
+	PRINT_STATS_LE32(cck, dsp_self_kill);
+	PRINT_STATS_LE32(cck, mh_format_err);
+	PRINT_STATS_LE32(cck, re_acq_main_rssi_sum);
+	PRINT_STATS_LE32(cck, reserved);
 
 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 			 "Statistics_Rx - GENERAL");
-	PRINT_STATS_LE32("bogus_cts", general->bogus_cts);
-	PRINT_STATS_LE32("bogus_ack", general->bogus_ack);
-	PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames);
-	PRINT_STATS_LE32("filtered_frames", general->filtered_frames);
-	PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons);
-	PRINT_STATS_LE32("channel_beacons", general->channel_beacons);
-	PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon);
-	PRINT_STATS_LE32("adc_rx_saturation_time",
-			 general->adc_rx_saturation_time);
-	PRINT_STATS_LE32("ina_detection_search_time",
-			 general->ina_detection_search_time);
-	PRINT_STATS_LE32("beacon_silence_rssi_a",
-			 general->beacon_silence_rssi_a);
-	PRINT_STATS_LE32("beacon_silence_rssi_b",
-			 general->beacon_silence_rssi_b);
-	PRINT_STATS_LE32("beacon_silence_rssi_c",
-			 general->beacon_silence_rssi_c);
-	PRINT_STATS_LE32("interference_data_flag",
-			 general->interference_data_flag);
-	PRINT_STATS_LE32("channel_load", general->channel_load);
-	PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms);
-	PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a);
-	PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b);
-	PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c);
-	PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a);
-	PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
-	PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
-	PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
-	PRINT_STATS_LE32("mac_id", general->mac_id);
-	PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
+	PRINT_STATS_LE32(general, bogus_cts);
+	PRINT_STATS_LE32(general, bogus_ack);
+	PRINT_STATS_LE32(general, non_bssid_frames);
+	PRINT_STATS_LE32(general, filtered_frames);
+	PRINT_STATS_LE32(general, non_channel_beacons);
+	PRINT_STATS_LE32(general, channel_beacons);
+	PRINT_STATS_LE32(general, num_missed_bcon);
+	PRINT_STATS_LE32(general, adc_rx_saturation_time);
+	PRINT_STATS_LE32(general, ina_detection_search_time);
+	PRINT_STATS_LE32(general, beacon_silence_rssi_a);
+	PRINT_STATS_LE32(general, beacon_silence_rssi_b);
+	PRINT_STATS_LE32(general, beacon_silence_rssi_c);
+	PRINT_STATS_LE32(general, interference_data_flag);
+	PRINT_STATS_LE32(general, channel_load);
+	PRINT_STATS_LE32(general, dsp_false_alarms);
+	PRINT_STATS_LE32(general, beacon_rssi_a);
+	PRINT_STATS_LE32(general, beacon_rssi_b);
+	PRINT_STATS_LE32(general, beacon_rssi_c);
+	PRINT_STATS_LE32(general, beacon_energy_a);
+	PRINT_STATS_LE32(general, beacon_energy_b);
+	PRINT_STATS_LE32(general, beacon_energy_c);
+	PRINT_STATS_LE32(general, num_bt_kills);
+	PRINT_STATS_LE32(general, mac_id);
+	PRINT_STATS_LE32(general, directed_data_mpdu);
 
 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
 			 "Statistics_Rx - HT");
-	PRINT_STATS_LE32("plcp_err", ht->plcp_err);
-	PRINT_STATS_LE32("overrun_err", ht->overrun_err);
-	PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err);
-	PRINT_STATS_LE32("crc32_good", ht->crc32_good);
-	PRINT_STATS_LE32("crc32_err", ht->crc32_err);
-	PRINT_STATS_LE32("mh_format_err", ht->mh_format_err);
-	PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good);
-	PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt);
-	PRINT_STATS_LE32("agg_cnt", ht->agg_cnt);
-	PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs);
+	PRINT_STATS_LE32(ht, plcp_err);
+	PRINT_STATS_LE32(ht, overrun_err);
+	PRINT_STATS_LE32(ht, early_overrun_err);
+	PRINT_STATS_LE32(ht, crc32_good);
+	PRINT_STATS_LE32(ht, crc32_err);
+	PRINT_STATS_LE32(ht, mh_format_err);
+	PRINT_STATS_LE32(ht, agg_crc32_good);
+	PRINT_STATS_LE32(ht, agg_mpdu_cnt);
+	PRINT_STATS_LE32(ht, agg_cnt);
+	PRINT_STATS_LE32(ht, unsupport_mcs);
 
 	mutex_unlock(&mvm->mutex);
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h
index bda3a3691f20..928168b18346 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-stats.h
@@ -131,7 +131,7 @@ struct mvm_statistics_rx_phy {
 	__le32 sfd_timeout;
 	__le32 fina_timeout;
 	__le32 unresponded_rts;
-	__le32 rxe_frame_limit_overrun;
+	__le32 rxe_frame_lmt_overrun;
 	__le32 sent_ack_cnt;
 	__le32 sent_cts_cnt;
 	__le32 sent_ba_rsp_cnt;
-- 
cgit v1.2.3


From be77c29cef285a8518078008a1751a90328f197c Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Thu, 15 Jan 2015 18:34:14 +0200
Subject: iwlwifi: mvm: rs: cleanup unuseful and overflowing traces

These aren't useful and overflowing so drop them
and also fix a minor typo.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 57a60948a554..dd2f966b3bf0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -917,7 +917,6 @@ static u16 rs_get_adjacent_rate(struct iwl_mvm *mvm, u8 index, u16 rate_mask,
 			break;
 		if (rate_mask & (1 << low))
 			break;
-		IWL_DEBUG_RATE(mvm, "Skipping masked lower rate: %d\n", low);
 	}
 
 	high = index;
@@ -927,7 +926,6 @@ static u16 rs_get_adjacent_rate(struct iwl_mvm *mvm, u8 index, u16 rate_mask,
 			break;
 		if (rate_mask & (1 << high))
 			break;
-		IWL_DEBUG_RATE(mvm, "Skipping masked higher rate: %d\n", high);
 	}
 
 	return (high << 8) | low;
@@ -2774,7 +2772,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		rs_get_max_rate_from_mask(lq_sta->active_mimo2_rate);
 
 	IWL_DEBUG_RATE(mvm,
-		       "RATE MASK: LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d LDPC=%d STBC%d\n",
+		       "RATE MASK: LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d LDPC=%d STBC=%d\n",
 		       lq_sta->active_legacy_rate,
 		       lq_sta->active_siso_rate,
 		       lq_sta->active_mimo2_rate,
-- 
cgit v1.2.3


From 57d7b6a4cda5a5247ab3b98a16a020af8e4f03fa Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Wed, 14 Jan 2015 21:39:34 +0200
Subject: iwlwifi: mvm: ignore temperature updates in the RX statistics
 notification

If the firmware sends spontaneous DTS notfications with the
temperature (indicated in a TLV), we can ignore the temperature we get
in the RX statistics notifications.  This prevents potentially
handling the same temperature change twice.  It also ignores
notifications with temperature equal to 0 that happens from time to
time.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-file.h | 2 ++
 drivers/net/wireless/iwlwifi/mvm/rx.c      | 6 +++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index 32e8b5bf2b3d..115e604e1ac9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -246,6 +246,7 @@ enum iwl_ucode_tlv_flag {
  *	the actual dwell time.
  * @IWL_UCODE_TLV_API_SCD_CFG: This firmware can configure the scheduler
  *	through the dedicated host command.
+ * @IWL_UCODE_TLV_API_ASYNC_DTM: Async temperature notifications are supported.
  */
 enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_BT_COEX_SPLIT         = BIT(3),
@@ -255,6 +256,7 @@ enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_FRAGMENTED_SCAN	= BIT(8),
 	IWL_UCODE_TLV_API_BASIC_DWELL		= BIT(13),
 	IWL_UCODE_TLV_API_SCD_CFG		= BIT(15),
+	IWL_UCODE_TLV_API_ASYNC_DTM		= BIT(17),
 };
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 02e0f3703632..7919a7b00c7a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -516,7 +516,11 @@ int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
 		.mvm = mvm,
 	};
 
-	iwl_mvm_tt_temp_changed(mvm,
+	/* Only handle rx statistics temperature changes if async temp
+	 * notifications are not supported
+	 */
+	if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_ASYNC_DTM))
+		iwl_mvm_tt_temp_changed(mvm,
 				le32_to_cpu(stats->general.radio_temperature));
 
 	iwl_mvm_update_rx_statistics(mvm, stats);
-- 
cgit v1.2.3


From bd1ba664147ae271e592aa90266cf9aba6efe116 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 13 Nov 2014 20:53:45 +0100
Subject: iwlwifi: mvm: move U-APSD decision to authentication

In order to change the usage of U-APSD on the fly later,
move the enabling condition into a new function that is
called when authenticated.

This allows the module parameter to become writable, it
won't take effect immediately but at least on the next
association the new value will be used.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-drv.c      |  2 +-
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 19 +++++++++++++++----
 2 files changed, 16 insertions(+), 5 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 0d3472679e4d..e3af724e0e0a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1490,7 +1490,7 @@ module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
 
 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
-		   bool, S_IRUGO);
+		   bool, S_IRUGO | S_IWUSR);
 #ifdef CONFIG_IWLWIFI_UAPSD
 MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)");
 #else
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 076a781ceeb0..d13903eff2ec 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1354,10 +1354,6 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 		mvm->bf_allowed_vif = mvmvif;
 		vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
 				     IEEE80211_VIF_SUPPORTS_CQM_RSSI;
-		if (mvm->fw->ucode_capa.flags &
-					IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
-		    !iwlwifi_mod_params.uapsd_disable)
-			vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
 	}
 
 	/*
@@ -2305,6 +2301,20 @@ static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
 	mutex_unlock(&mvm->mutex);
 }
 
+static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
+				const u8 *bssid)
+{
+	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
+		return;
+
+	if (iwlwifi_mod_params.uapsd_disable) {
+		vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
+		return;
+	}
+
+	vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
+}
+
 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_sta *sta,
@@ -2364,6 +2374,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
 		 * Reset EBS status here assuming environment has been changed.
 		 */
 		mvm->last_ebs_successful = true;
+		iwl_mvm_check_uapsd(mvm, vif, sta->addr);
 		ret = 0;
 	} else if (old_state == IEEE80211_STA_AUTH &&
 		   new_state == IEEE80211_STA_ASSOC) {
-- 
cgit v1.2.3


From 1c30f12ed2f53433c29e7f2f8bf1c1e1dbbdce96 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 13 Jan 2015 13:56:26 +0200
Subject: iwlwifi: mvm: BT Coex - fine tune the MPLUT register

This allow to better preserve the BT performance while
WiFi is running.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/constants.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h
index f98f3efa2056..d91c46b0f888 100644
--- a/drivers/net/wireless/iwlwifi/mvm/constants.h
+++ b/drivers/net/wireless/iwlwifi/mvm/constants.h
@@ -94,7 +94,7 @@
 #define IWL_MVM_BT_COEX_MPLUT			1
 #define IWL_MVM_BT_COEX_RRC			1
 #define IWL_MVM_BT_COEX_TTC			1
-#define IWL_MVM_BT_COEX_MPLUT_REG0		0x28412201
+#define IWL_MVM_BT_COEX_MPLUT_REG0		0x22002200
 #define IWL_MVM_BT_COEX_MPLUT_REG1		0x11118451
 #define IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS	30
 #define IWL_MVM_FW_MCAST_FILTER_PASS_ALL	0
-- 
cgit v1.2.3


From 84bfffa96835435d138b315f90e5fdea1185eb4d Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 13 Jan 2015 10:16:30 +0200
Subject: iwlwifi: mvm: add support for new LTR command

This new command will give finer granularity to configure
the platform.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-file.h      |  2 ++
 drivers/net/wireless/iwlwifi/mvm/fw-api-power.h | 20 ++++++++++++-
 drivers/net/wireless/iwlwifi/mvm/fw.c           | 38 +++++++++++++++++++------
 3 files changed, 51 insertions(+), 9 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index 4aa26b2e2e23..b998aaf5efd1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -241,6 +241,7 @@ enum iwl_ucode_tlv_flag {
  * @IWL_UCODE_TLV_API_SF_NO_DUMMY_NOTIF: ucode supports disabling dummy notif.
  * @IWL_UCODE_TLV_API_FRAGMENTED_SCAN: This ucode supports active dwell time
  *	longer than the passive one, which is essential for fragmented scan.
+ * IWL_UCODE_TLV_API_HDC_PHASE_0: ucode supports finer configuration of LTR
  * @IWL_UCODE_TLV_API_BASIC_DWELL: use only basic dwell time in scan command,
  *	regardless of the band or the number of the probes. FW will calculate
  *	the actual dwell time.
@@ -255,6 +256,7 @@ enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_LMAC_SCAN		= BIT(6),
 	IWL_UCODE_TLV_API_SF_NO_DUMMY_NOTIF	= BIT(7),
 	IWL_UCODE_TLV_API_FRAGMENTED_SCAN	= BIT(8),
+	IWL_UCODE_TLV_API_HDC_PHASE_0		= BIT(10),
 	IWL_UCODE_TLV_API_BASIC_DWELL		= BIT(13),
 	IWL_UCODE_TLV_API_SCD_CFG		= BIT(15),
 	IWL_UCODE_TLV_API_SINGLE_SCAN_EBS	= BIT(16),
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
index 430020047b77..4fc0938b3fb6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
@@ -91,15 +91,33 @@ enum iwl_ltr_config_flags {
 	LTR_CFG_FLAG_DENIE_C10_ON_PD = BIT(6),
 };
 
+/**
+ * struct iwl_ltr_config_cmd_v1 - configures the LTR
+ * @flags: See %enum iwl_ltr_config_flags
+ */
+struct iwl_ltr_config_cmd_v1 {
+	__le32 flags;
+	__le32 static_long;
+	__le32 static_short;
+} __packed; /* LTR_CAPABLE_API_S_VER_1 */
+
+#define LTR_VALID_STATES_NUM 4
+
 /**
  * struct iwl_ltr_config_cmd - configures the LTR
  * @flags: See %enum iwl_ltr_config_flags
+ * @static_long:
+ * @static_short:
+ * @ltr_cfg_values:
+ * @ltr_short_idle_timeout:
  */
 struct iwl_ltr_config_cmd {
 	__le32 flags;
 	__le32 static_long;
 	__le32 static_short;
-} __packed;
+	__le32 ltr_cfg_values[LTR_VALID_STATES_NUM];
+	__le32 ltr_short_idle_timeout;
+} __packed; /* LTR_CAPABLE_API_S_VER_2 */
 
 /* Radio LP RX Energy Threshold measured in dBm */
 #define POWER_LPRX_RSSI_THRESHOLD	75
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 2e12f41dd65b..a322a5e3d31b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -499,6 +499,35 @@ int iwl_mvm_start_fw_dbg_conf(struct iwl_mvm *mvm, enum iwl_fw_dbg_conf conf_id)
 	return ret;
 }
 
+static int iwl_mvm_config_ltr_v1(struct iwl_mvm *mvm)
+{
+	struct iwl_ltr_config_cmd_v1 cmd_v1 = {
+		.flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
+	};
+
+	if (!mvm->trans->ltr_enabled)
+		return 0;
+
+	return iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
+				    sizeof(cmd_v1), &cmd_v1);
+}
+
+static int iwl_mvm_config_ltr(struct iwl_mvm *mvm)
+{
+	struct iwl_ltr_config_cmd cmd = {
+		.flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
+	};
+
+	if (!mvm->trans->ltr_enabled)
+		return 0;
+
+	if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_HDC_PHASE_0))
+		return iwl_mvm_config_ltr_v1(mvm);
+
+	return iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
+				    sizeof(cmd), &cmd);
+}
+
 int iwl_mvm_up(struct iwl_mvm *mvm)
 {
 	int ret, i;
@@ -604,14 +633,7 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	/* Initialize tx backoffs to the minimal possible */
 	iwl_mvm_tt_tx_backoff(mvm, 0);
 
-	if (mvm->trans->ltr_enabled) {
-		struct iwl_ltr_config_cmd cmd = {
-			.flags = cpu_to_le32(LTR_CFG_FLAG_FEATURE_ENABLE),
-		};
-
-		WARN_ON(iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0,
-					     sizeof(cmd), &cmd));
-	}
+	WARN_ON(iwl_mvm_config_ltr(mvm));
 
 	ret = iwl_mvm_power_update_device(mvm);
 	if (ret)
-- 
cgit v1.2.3


From 6d440b2559c9e477ff11b40c6f2dd69193d46161 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 20 Jan 2015 09:25:19 +0200
Subject: Revert "iwlwifi: mvm: drop non VO frames when flushing"

This is now implemented by mac80211 (commit below).
mac80211 will flush/drop the frames on the queues before
suspending / disconnecting.
It will then send the deauth and wait until the queues are
empty.

commit 3b24f4c65386dc0f2efb41027bc6e410ea2c0049
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date:   Wed Jan 7 15:42:39 2015 +0200

    mac80211: let flush() drop packets when possible

This reverts commit 4e6c48e0984e28d064ee8fbc292aee7b7920c507.
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 2c79ad360cd9..cef6f3373542 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -3565,16 +3565,18 @@ static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
 		msk |= mvmsta->tfd_queue_msk;
 	}
 
-	msk &= ~BIT(vif->hw_queue[IEEE80211_AC_VO]);
-
-	if (iwl_mvm_flush_tx_path(mvm, msk, true))
-		IWL_ERR(mvm, "flush request fail\n");
-	mutex_unlock(&mvm->mutex);
+	if (drop) {
+		if (iwl_mvm_flush_tx_path(mvm, msk, true))
+			IWL_ERR(mvm, "flush request fail\n");
+		mutex_unlock(&mvm->mutex);
+	} else {
+		mutex_unlock(&mvm->mutex);
 
-	/* this can take a while, and we may need/want other operations
-	 * to succeed while doing this, so do it without the mutex held
-	 */
-	iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
+		/* this can take a while, and we may need/want other operations
+		 * to succeed while doing this, so do it without the mutex held
+		 */
+		iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
+	}
 }
 
 const struct ieee80211_ops iwl_mvm_hw_ops = {
-- 
cgit v1.2.3


From ec41088f2bff8c6b151c450798534a1037eda47e Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Mon, 12 Jan 2015 11:53:06 +0200
Subject: iwlwifi: mvm: rs: use STBC regardless of power save mode

Tx STBC was used only when in CAM mode or if powersave is disabled.
Effectively this meant we never used STBC as these modes aren't
used on most platforms by default. Change that.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 8 --------
 1 file changed, 8 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index dd2f966b3bf0..997a3831117c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1802,20 +1802,12 @@ out:
 static bool rs_stbc_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			  struct iwl_lq_sta *lq_sta)
 {
-	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
-	struct ieee80211_vif *vif = mvmsta->vif;
-	bool sta_ps_disabled = (vif->type == NL80211_IFTYPE_STATION &&
-				!vif->bss_conf.ps);
-
 	/* Our chip supports Tx STBC and the peer is an HT/VHT STA which
 	 * supports STBC of at least 1*SS
 	 */
 	if (!lq_sta->stbc)
 		return false;
 
-	if (!mvm->ps_disabled && !sta_ps_disabled)
-		return false;
-
 	if (!iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta))
 		return false;
 
-- 
cgit v1.2.3


From aa0cb08b9575f4c37d6936b9189ecdcdbc94ee7a Mon Sep 17 00:00:00 2001
From: "John W. Linville" <linville@tuxdriver.com>
Date: Mon, 12 Jan 2015 16:18:11 -0500
Subject: iwlwifi: mvm: document switch case fall-through in
 iwl_mvm_send_sta_key

Add a comment indicating that the WLAN_CIPHER_SUITE_WEP104 case falls
through to the WLAN_CIPHER_SUITE_WEP40 case in iwl_mvm_send_sta_key.
This will document that the lack of a break is intentional.

Coverity: CID 1260023

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/sta.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index b93a177b4a09..8e413d3b9c32 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -1196,6 +1196,7 @@ static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm,
 		break;
 	case WLAN_CIPHER_SUITE_WEP104:
 		key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_13BYTES);
+		/* fall through */
 	case WLAN_CIPHER_SUITE_WEP40:
 		key_flags |= cpu_to_le16(STA_KEY_FLG_WEP);
 		memcpy(cmd.key + 3, keyconf->key, keyconf->keylen);
-- 
cgit v1.2.3


From 716e48a6505ed5a48e84bcbaa186c00b25a13484 Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Mon, 12 Jan 2015 10:43:58 +0200
Subject: iwlwifi: mvm: support family 8000 C step

C step functionality in the driver is exactly the same as
B step besides the ucode name that present as iwlwifi-8000C-xx.ucode
instead of iwlwifi-8000B-xx.ucode

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-csr.h    | 1 +
 drivers/net/wireless/iwlwifi/mvm/nvm.c    | 2 +-
 drivers/net/wireless/iwlwifi/pcie/trans.c | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index 7f40cf36ec0e..faa17f2e352a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -307,6 +307,7 @@
 enum {
 	SILICON_A_STEP = 0,
 	SILICON_B_STEP,
+	SILICON_C_STEP,
 };
 
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index d8ac01d97e26..5383429d96c1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -356,7 +356,7 @@ static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
 		max_section_size = IWL_MAX_NVM_SECTION_SIZE;
 	else if (CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP)
 		max_section_size = IWL_MAX_NVM_8000A_SECTION_SIZE;
-	else /* Family 8000 B-step */
+	else /* Family 8000 B-step or C-step */
 		max_section_size = IWL_MAX_NVM_8000B_SECTION_SIZE;
 
 	/*
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 95c2ab1ec74c..49e32060eafb 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -982,7 +982,7 @@ static int iwl_trans_pcie_start_fw(struct iwl_trans *trans,
 
 	/* Load the given image to the HW */
 	if ((trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) &&
-	    (CSR_HW_REV_STEP(trans->hw_rev) == SILICON_B_STEP))
+	    (CSR_HW_REV_STEP(trans->hw_rev) != SILICON_A_STEP))
 		return iwl_pcie_load_given_ucode_8000b(trans, fw);
 	else
 		return iwl_pcie_load_given_ucode(trans, fw);
-- 
cgit v1.2.3


From e583b50c072b17137c3a55f0129b69eb821e81df Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu, 22 Jan 2015 15:14:38 +0200
Subject: iwlwifi: mvm: BT Coex - set all the co-running values to 0

With this value, we de-facto disable the feature. Since it
is not working yet, disable it completely.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/coex.c        | 16 ++++++++--------
 drivers/net/wireless/iwlwifi/mvm/coex_legacy.c | 16 ++++++++--------
 2 files changed, 16 insertions(+), 16 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c
index d2fd48c31d3d..1ec4d55155f7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex.c
@@ -342,7 +342,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 12,
 		.lut20 = {
-			cpu_to_le32(0x00000001),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -363,7 +363,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 20,
 		.lut20 = {
-			cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -384,7 +384,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 21,
 		.lut20 = {
-			cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -405,7 +405,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 23,
 		.lut20 = {
-			cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -426,7 +426,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 27,
 		.lut20 = {
-			cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -447,7 +447,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 30,
 		.lut20 = {
-			cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -468,7 +468,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 32,
 		.lut20 = {
-			cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -489,7 +489,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 33,
 		.lut20 = {
-			cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
diff --git a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
index 973f2881dd1d..d530ef3da107 100644
--- a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
+++ b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c
@@ -330,7 +330,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 12,
 		.lut20 = {
-			cpu_to_le32(0x00000001),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -351,7 +351,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 20,
 		.lut20 = {
-			cpu_to_le32(0x00000002),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -372,7 +372,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 21,
 		.lut20 = {
-			cpu_to_le32(0x00000003),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -393,7 +393,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 23,
 		.lut20 = {
-			cpu_to_le32(0x00000004),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -414,7 +414,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 27,
 		.lut20 = {
-			cpu_to_le32(0x00000005),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -435,7 +435,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 30,
 		.lut20 = {
-			cpu_to_le32(0x00000006),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -456,7 +456,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 32,
 		.lut20 = {
-			cpu_to_le32(0x00000007),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
@@ -477,7 +477,7 @@ static const struct corunning_block_luts antenna_coupling_ranges[] = {
 	{
 		.range = 33,
 		.lut20 = {
-			cpu_to_le32(0x00000008),  cpu_to_le32(0x00000000),
+			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
 			cpu_to_le32(0x00000000),  cpu_to_le32(0x00000000),
-- 
cgit v1.2.3


From 1008e442e3feb80502a8afddedc590ad444d5110 Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Sat, 17 Jan 2015 22:35:00 -0500
Subject: iwlwifi: mvm: Do not consider invalid HW queues in queue mask

The iwl_mvm_mac_get_queues_mask() added vif->hw_queue[ac] to the
queue mask although it might be set to IEEE80211_INVAL_HW_QUEUE.
Fix it.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index a3e9cd955e7d..8bf78fa8ace0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -208,8 +208,10 @@ u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif)
 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
 		return BIT(IWL_MVM_OFFCHANNEL_QUEUE);
 
-	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
-		qmask |= BIT(vif->hw_queue[ac]);
+	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+		if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
+			qmask |= BIT(vif->hw_queue[ac]);
+	}
 
 	if (vif->type == NL80211_IFTYPE_AP)
 		qmask |= BIT(vif->cab_queue);
-- 
cgit v1.2.3


From a4ca3ed4ebefab9cfb342518009f2200847778e5 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 20 Jan 2015 17:07:10 +0200
Subject: iwlwifi: mvm: really disable TDLS queues

for_each_set_bit expect the size in number of bits and not
in bytes.

Fixes: a0f6bf2a5b01 ("iwlwifi: mvm: use private TFD queues for TDLS stations")
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/sta.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index 8e413d3b9c32..14a848480d04 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -250,7 +250,7 @@ static void iwl_mvm_tdls_sta_deinit(struct iwl_mvm *mvm,
 
 	/* disable the TDLS STA-specific queues */
 	sta_msk = mvmsta->tfd_queue_msk;
-	for_each_set_bit(i, &sta_msk, sizeof(sta_msk))
+	for_each_set_bit(i, &sta_msk, sizeof(sta_msk) * BITS_PER_BYTE)
 		iwl_mvm_disable_txq(mvm, i, 0);
 }
 
@@ -464,7 +464,7 @@ void iwl_mvm_sta_drained_wk(struct work_struct *wk)
 		if (mvm->tfd_drained[sta_id]) {
 			unsigned long i, msk = mvm->tfd_drained[sta_id];
 
-			for_each_set_bit(i, &msk, sizeof(msk))
+			for_each_set_bit(i, &msk, sizeof(msk) * BITS_PER_BYTE)
 				iwl_mvm_disable_txq(mvm, i, 0);
 
 			mvm->tfd_drained[sta_id] = 0;
-- 
cgit v1.2.3


From 2c59d80c448c8b6c0978986bd687466a233bd8ae Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Fri, 16 Jan 2015 11:01:51 +0200
Subject: iwlwifi: mvm: rs: refactor ht/vht init

Prepare to add some more code there so refactor to
separate functions.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 42 ++++-------------------------------
 1 file changed, 4 insertions(+), 38 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 997a3831117c..554b3a5e442c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2714,44 +2714,10 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		lq_sta->active_legacy_rate |= BIT(sband->bitrates[i].hw_value);
 
 	/* TODO: should probably account for rx_highest for both HT/VHT */
-	if (!vht_cap || !vht_cap->vht_supported) {
-		/* active_siso_rate mask includes 9 MBits (bit 5),
-		 * and CCK (bits 0-3), supp_rates[] does not;
-		 * shift to convert format, force 9 MBits off.
-		 */
-		lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1;
-		lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1;
-		lq_sta->active_siso_rate &= ~((u16)0x2);
-		lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
-
-		/* Same here */
-		lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1;
-		lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1;
-		lq_sta->active_mimo2_rate &= ~((u16)0x2);
-		lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
-
-		lq_sta->is_vht = false;
-		if (mvm->cfg->ht_params->ldpc &&
-		    (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING))
-			lq_sta->ldpc = true;
-
-		if (mvm->cfg->ht_params->stbc &&
-		    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
-		    (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC))
-			lq_sta->stbc = true;
-	} else {
-		rs_vht_set_enabled_rates(sta, vht_cap, lq_sta);
-		lq_sta->is_vht = true;
-
-		if (mvm->cfg->ht_params->ldpc &&
-		    (vht_cap->cap & IEEE80211_VHT_CAP_RXLDPC))
-			lq_sta->ldpc = true;
-
-		if (mvm->cfg->ht_params->stbc &&
-		    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
-		    (vht_cap->cap & IEEE80211_VHT_CAP_RXSTBC_MASK))
-			lq_sta->stbc = true;
-	}
+	if (!vht_cap || !vht_cap->vht_supported)
+		rs_ht_init(mvm, sta, lq_sta, ht_cap);
+	else
+		rs_vht_init(mvm, sta, lq_sta, vht_cap);
 
 	if (IWL_MVM_RS_DISABLE_P2P_MIMO && sta_priv->vif->p2p)
 		lq_sta->active_mimo2_rate = 0;
-- 
cgit v1.2.3


From c5d679a55dce1c025b12bcea5063d882565622b8 Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Thu, 15 Jan 2015 20:22:34 +0200
Subject: iwlwifi: mvm: use a new API for enabling STBC

The new API tells the FW that it's allowed to use STBC
but the FW will decide on its own whether to use STBC
or SISO (and in the future Beamformer).
Keep support for the old API which sets STBC explicitly
in the rates in the LQ table while we still support old
FW revisions.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-file.h   |  2 ++
 drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h | 15 +++++++++++++--
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 14 +++++++++++++-
 3 files changed, 28 insertions(+), 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index b998aaf5efd1..e4f589898eda 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -249,6 +249,7 @@ enum iwl_ucode_tlv_flag {
  *	through the dedicated host command.
  * @IWL_UCODE_TLV_API_SINGLE_SCAN_EBS: EBS is supported for single scans too.
  * @IWL_UCODE_TLV_API_ASYNC_DTM: Async temperature notifications are supported.
+ * @IWL_UCODE_TLV_API_LQ_SS_PARAMS: Configure STBC/BFER via LQ CMD ss_params
  */
 enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_BT_COEX_SPLIT         = BIT(3),
@@ -261,6 +262,7 @@ enum iwl_ucode_tlv_api {
 	IWL_UCODE_TLV_API_SCD_CFG		= BIT(15),
 	IWL_UCODE_TLV_API_SINGLE_SCAN_EBS	= BIT(16),
 	IWL_UCODE_TLV_API_ASYNC_DTM		= BIT(17),
+	IWL_UCODE_TLV_API_LQ_SS_PARAMS		= BIT(18),
 };
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
index 8bb5b94bf963..6a2a6b0ab91b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
@@ -308,6 +308,17 @@ enum {
 #define LQ_FLAG_DYNAMIC_BW_POS          6
 #define LQ_FLAG_DYNAMIC_BW_MSK          (1 << LQ_FLAG_DYNAMIC_BW_POS)
 
+/* Single Stream Parameters
+ * SS_STBC/BFER_ALLOWED - Controls whether STBC or Beamformer (BFER) is allowed
+ * ucode will make a smart decision between SISO/STBC/BFER
+ * SS_PARAMS_VALID - if not set ignore the ss_params field.
+ */
+enum {
+	RS_SS_STBC_ALLOWED = BIT(0),
+	RS_SS_BFER_ALLOWED = BIT(1),
+	RS_SS_PARAMS_VALID = BIT(31),
+};
+
 /**
  * struct iwl_lq_cmd - link quality command
  * @sta_id: station to update
@@ -330,7 +341,7 @@ enum {
  *	2 - 0x3f: maximal number of frames (up to 3f == 63)
  * @rs_table: array of rates for each TX try, each is rate_n_flags,
  *	meaning it is a combination of RATE_MCS_* and IWL_RATE_*_PLCP
- * @bf_params: beam forming params, currently not used
+ * @ss_params: single stream features. declare whether STBC or BFER are allowed.
  */
 struct iwl_lq_cmd {
 	u8 sta_id;
@@ -348,6 +359,6 @@ struct iwl_lq_cmd {
 	u8 agg_frame_cnt_limit;
 	__le32 reserved2;
 	__le32 rs_table[LQ_MAX_RETRY_NUM];
-	__le32 bf_params;
+	__le32 ss_params;
 }; /* LINK_QUALITY_CMD_API_S_VER_1 */
 #endif /* __fw_api_rs_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 554b3a5e442c..f30eff20cb6b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2868,11 +2868,23 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 	u8 valid_tx_ant = 0;
 	struct iwl_lq_cmd *lq_cmd = &lq_sta->lq;
 	bool toggle_ant = false;
+	bool stbc_allowed = false;
 
 	memcpy(&rate, initial_rate, sizeof(rate));
 
 	valid_tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
-	rate.stbc = rs_stbc_allow(mvm, sta, lq_sta);
+
+	stbc_allowed = rs_stbc_allow(mvm, sta, lq_sta);
+	if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LQ_SS_PARAMS) {
+		u32 ss_params = RS_SS_PARAMS_VALID;
+
+		if (stbc_allowed)
+			ss_params |= RS_SS_STBC_ALLOWED;
+		lq_cmd->ss_params = cpu_to_le32(ss_params);
+	} else {
+		/* TODO: remove old API when min FW API hits 14 */
+		rate.stbc = stbc_allowed;
+	}
 
 	if (is_siso(&rate)) {
 		num_rates = IWL_MVM_RS_INITIAL_SISO_NUM_RATES;
-- 
cgit v1.2.3


From 2f15a829ae3cbc4cb27185f523af3df33757fcae Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 21 Jan 2015 18:05:04 +0100
Subject: iwlwifi: mvm: rs: remove stats argument from functions

The stats argument is always only passed as &mvm->drv_rx_stats, so
there's no point in passing it when the mvm pointer is passed.
Remove the argument entirely.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mvm.h |  4 +-
 drivers/net/wireless/iwlwifi/mvm/rs.c  | 92 ++++++++++++++++++++++++++--------
 drivers/net/wireless/iwlwifi/mvm/rx.c  |  2 +-
 3 files changed, 72 insertions(+), 26 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index aa93ee794670..979ac23522f2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -1143,9 +1143,7 @@ iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 
 /* rate scaling */
 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init);
-void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm,
-				struct iwl_mvm_frame_stats *stats,
-				u32 rate, bool agg);
+void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm, u32 rate, bool agg);
 int rs_pretty_print_rate(char *buf, const u32 rate);
 void rs_update_last_rssi(struct iwl_mvm *mvm,
 			 struct iwl_lq_sta *lq_sta,
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index f30eff20cb6b..9f32f2db95bd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2600,68 +2600,116 @@ static void rs_vht_set_enabled_rates(struct ieee80211_sta *sta,
 	}
 }
 
+static void rs_ht_init(struct iwl_mvm *mvm,
+		       struct ieee80211_sta *sta,
+		       struct iwl_lq_sta *lq_sta,
+		       struct ieee80211_sta_ht_cap *ht_cap)
+{
+	/* active_siso_rate mask includes 9 MBits (bit 5),
+	 * and CCK (bits 0-3), supp_rates[] does not;
+	 * shift to convert format, force 9 MBits off.
+	 */
+	lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1;
+	lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1;
+	lq_sta->active_siso_rate &= ~((u16)0x2);
+	lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
+
+	lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1;
+	lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1;
+	lq_sta->active_mimo2_rate &= ~((u16)0x2);
+	lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
+
+	if (mvm->cfg->ht_params->ldpc &&
+	    (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING))
+		lq_sta->ldpc = true;
+
+	if (mvm->cfg->ht_params->stbc &&
+	    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
+	    (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC))
+		lq_sta->stbc = true;
+
+	lq_sta->is_vht = false;
+}
+
+static void rs_vht_init(struct iwl_mvm *mvm,
+			struct ieee80211_sta *sta,
+			struct iwl_lq_sta *lq_sta,
+			struct ieee80211_sta_vht_cap *vht_cap)
+{
+	rs_vht_set_enabled_rates(sta, vht_cap, lq_sta);
+
+	if (mvm->cfg->ht_params->ldpc &&
+	    (vht_cap->cap & IEEE80211_VHT_CAP_RXLDPC))
+		lq_sta->ldpc = true;
+
+	if (mvm->cfg->ht_params->stbc &&
+	    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
+	    (vht_cap->cap & IEEE80211_VHT_CAP_RXSTBC_MASK))
+		lq_sta->stbc = true;
+
+	lq_sta->is_vht = true;
+}
+
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-static void iwl_mvm_reset_frame_stats(struct iwl_mvm *mvm,
-				      struct iwl_mvm_frame_stats *stats)
+static void iwl_mvm_reset_frame_stats(struct iwl_mvm *mvm)
 {
 	spin_lock_bh(&mvm->drv_stats_lock);
-	memset(stats, 0, sizeof(*stats));
+	memset(&mvm->drv_rx_stats, 0, sizeof(mvm->drv_rx_stats));
 	spin_unlock_bh(&mvm->drv_stats_lock);
 }
 
-void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm,
-				struct iwl_mvm_frame_stats *stats,
-				u32 rate, bool agg)
+void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm, u32 rate, bool agg)
 {
 	u8 nss = 0, mcs = 0;
 
 	spin_lock(&mvm->drv_stats_lock);
 
 	if (agg)
-		stats->agg_frames++;
+		mvm->drv_rx_stats.agg_frames++;
 
-	stats->success_frames++;
+	mvm->drv_rx_stats.success_frames++;
 
 	switch (rate & RATE_MCS_CHAN_WIDTH_MSK) {
 	case RATE_MCS_CHAN_WIDTH_20:
-		stats->bw_20_frames++;
+		mvm->drv_rx_stats.bw_20_frames++;
 		break;
 	case RATE_MCS_CHAN_WIDTH_40:
-		stats->bw_40_frames++;
+		mvm->drv_rx_stats.bw_40_frames++;
 		break;
 	case RATE_MCS_CHAN_WIDTH_80:
-		stats->bw_80_frames++;
+		mvm->drv_rx_stats.bw_80_frames++;
 		break;
 	default:
 		WARN_ONCE(1, "bad BW. rate 0x%x", rate);
 	}
 
 	if (rate & RATE_MCS_HT_MSK) {
-		stats->ht_frames++;
+		mvm->drv_rx_stats.ht_frames++;
 		mcs = rate & RATE_HT_MCS_RATE_CODE_MSK;
 		nss = ((rate & RATE_HT_MCS_NSS_MSK) >> RATE_HT_MCS_NSS_POS) + 1;
 	} else if (rate & RATE_MCS_VHT_MSK) {
-		stats->vht_frames++;
+		mvm->drv_rx_stats.vht_frames++;
 		mcs = rate & RATE_VHT_MCS_RATE_CODE_MSK;
 		nss = ((rate & RATE_VHT_MCS_NSS_MSK) >>
 		       RATE_VHT_MCS_NSS_POS) + 1;
 	} else {
-		stats->legacy_frames++;
+		mvm->drv_rx_stats.legacy_frames++;
 	}
 
 	if (nss == 1)
-		stats->siso_frames++;
+		mvm->drv_rx_stats.siso_frames++;
 	else if (nss == 2)
-		stats->mimo2_frames++;
+		mvm->drv_rx_stats.mimo2_frames++;
 
 	if (rate & RATE_MCS_SGI_MSK)
-		stats->sgi_frames++;
+		mvm->drv_rx_stats.sgi_frames++;
 	else
-		stats->ngi_frames++;
+		mvm->drv_rx_stats.ngi_frames++;
 
-	stats->last_rates[stats->last_frame_idx] = rate;
-	stats->last_frame_idx = (stats->last_frame_idx + 1) %
-		ARRAY_SIZE(stats->last_rates);
+	mvm->drv_rx_stats.last_rates[mvm->drv_rx_stats.last_frame_idx] = rate;
+	mvm->drv_rx_stats.last_frame_idx =
+		(mvm->drv_rx_stats.last_frame_idx + 1) %
+			ARRAY_SIZE(mvm->drv_rx_stats.last_rates);
 
 	spin_unlock(&mvm->drv_stats_lock);
 }
@@ -2749,7 +2797,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
 	lq_sta->is_agg = 0;
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-	iwl_mvm_reset_frame_stats(mvm, &mvm->drv_rx_stats);
+	iwl_mvm_reset_frame_stats(mvm);
 #endif
 	rs_initialize_lq(mvm, sta, lq_sta, band, init);
 }
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 7919a7b00c7a..f922131b4eab 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -407,7 +407,7 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	}
 
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-	iwl_mvm_update_frame_stats(mvm, &mvm->drv_rx_stats, rate_n_flags,
+	iwl_mvm_update_frame_stats(mvm, rate_n_flags,
 				   rx_status->flag & RX_FLAG_AMPDU_DETAILS);
 #endif
 	iwl_mvm_pass_packet_to_mac80211(mvm, skb, hdr, len, ampdu_status,
-- 
cgit v1.2.3


From 0b83795a110248db8f8e7c289a27b3b71b0bb35a Mon Sep 17 00:00:00 2001
From: Liad Kaufman <liad.kaufman@intel.com>
Date: Thu, 22 Jan 2015 19:01:35 +0200
Subject: iwlwifi: mvm: fix rx chains configuration in phy ctxt cmd

In the PHY_CTXT command sent to the FW the TX chains were
indeed configured by the values of both FW TLVs and of NVM,
but the RX chains were left out and configured only by FW
TLV.

This causes problems in 4165 HW, where there are 1x1
antennas, and the wrong configuration denies the driver
from connecting to the AP.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
index 540c36bae268..5b43616eeb06 100644
--- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c
@@ -170,7 +170,7 @@ static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm,
 		active_cnt = 2;
 	}
 
-	cmd->rxchain_info = cpu_to_le32(mvm->fw->valid_rx_ant <<
+	cmd->rxchain_info = cpu_to_le32(iwl_mvm_get_valid_rx_ant(mvm) <<
 					PHY_RX_CHAIN_VALID_POS);
 	cmd->rxchain_info |= cpu_to_le32(idle_cnt << PHY_RX_CHAIN_CNT_POS);
 	cmd->rxchain_info |= cpu_to_le32(active_cnt <<
-- 
cgit v1.2.3


From c774905d98badddbeb4ad1bc653aedbd7ab024e4 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 25 Jan 2015 10:03:17 +0200
Subject: iwlwifi: mvm: check IWL_UCODE_TLV_API_SCD_CFG in API and not in capa

IWL_UCODE_TLV_API_SCD_CFG is a new API and hence, check if
enabled in the correct field.

Fixes: 0294d9eece86 ("iwlwifi: mvm: let the firmware configure the scheduler")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mvm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 979ac23522f2..7773ffc4ca62 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -874,7 +874,7 @@ static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm)
 
 static inline bool iwl_mvm_is_scd_cfg_supported(struct iwl_mvm *mvm)
 {
-	return mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_API_SCD_CFG;
+	return mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_SCD_CFG;
 }
 
 extern const u8 iwl_mvm_ac_to_tx_fifo[];
-- 
cgit v1.2.3


From 60f1071c22423a6eb937d01148244cae9a68c0fd Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Wed, 28 Jan 2015 09:00:27 +0200
Subject: iwlwifi: mvm: don't reprobe if we fail during reconfig and fw_restart
 is false

If we don't want to restart the firmware, don't reprobe either in case
of a failure during reconfiguration.  This allows us to debug failures
in the reconfig flow as well.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/ops.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 8bf8c2a29e5e..b1dea6800b3b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -870,7 +870,10 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
 	 * If WoWLAN fw asserted, don't restart either, mac80211
 	 * can't recover this since we're already half suspended.
 	 */
-	if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
+	if (!mvm->restart_fw && fw_error) {
+		schedule_work(&mvm->fw_error_dump_wk);
+	} else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
+				    &mvm->status)) {
 		struct iwl_mvm_reprobe *reprobe;
 
 		IWL_ERR(mvm,
@@ -894,16 +897,13 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
 		reprobe->dev = mvm->trans->dev;
 		INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
 		schedule_work(&reprobe->work);
-	} else if (mvm->cur_ucode == IWL_UCODE_REGULAR &&
-		   (!fw_error || mvm->restart_fw)) {
+	} else if (mvm->cur_ucode == IWL_UCODE_REGULAR) {
 		/* don't let the transport/FW power down */
 		iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
 
 		if (fw_error && mvm->restart_fw > 0)
 			mvm->restart_fw--;
 		ieee80211_restart_hw(mvm->hw);
-	} else if (fw_error) {
-		schedule_work(&mvm->fw_error_dump_wk);
 	}
 }
 
-- 
cgit v1.2.3


From edbad05131a3d94f997eb6c8040aab40f4fffe48 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 28 Jan 2015 23:43:24 +0100
Subject: iwlwifi: mvm: remove space padding after sysassert description

There's really no reason to pad out the field with spaces at the
end of the line - they're practically invisible there anyway.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 4eb3cad31aa9..02f434d32800 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -432,7 +432,7 @@ static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm)
 			mvm->status, table.valid);
 	}
 
-	IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id,
+	IWL_ERR(mvm, "0x%08X | %s\n", table.error_id,
 		desc_lookup(table.error_id));
 	IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1);
 	IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2);
-- 
cgit v1.2.3


From 5523d11cc46393a1e61b7ef4a0b2d4e7ed9521e4 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Thu, 29 Jan 2015 12:48:20 +0200
Subject: iwlwifi: mvm: always use mac color zero

We don't really need to use different mac colors when adding mac
contexts, because they're not used anywhere.  In fact, the firmware
doesn't accept 255 as a valid color, so we get into a SYSASSERT 0x3401
when we reach that.

Remove the color increment to use always zero and avoid reaching 255.

CC: <stable@vger.kernel.org> [3.10+]
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index cef6f3373542..cfd7bfcb3fc6 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -707,9 +707,6 @@ static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
 	mvmvif->uploaded = false;
 	mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
 
-	/* does this make sense at all? */
-	mvmvif->color++;
-
 	spin_lock_bh(&mvm->time_event_lock);
 	iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
 	spin_unlock_bh(&mvm->time_event_lock);
-- 
cgit v1.2.3


From 3d44eebf773950dd2e24ad7ac786b589d6522d67 Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Fri, 16 Jan 2015 22:37:04 +0200
Subject: iwlwifi: mvm: add beamformer support

VHT Beamformer (BFER) will be used if the peer supports it
and there's a benefit to use it vs. STBC or SISO.
The driver now tells the FW whether BFER and/or STBC are
allowed but the FW will make the decision to use either
or stick to SISO on its own.
BFER is limited to a single remote peer. The driver takes
care of ensuring this to the FW and prioritizes with which
peer BFER will be used.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw-file.h   |   2 +
 drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h |  35 ++++--
 drivers/net/wireless/iwlwifi/mvm/mac80211.c  |   7 +-
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 157 ++++++++++++++++++++++++---
 drivers/net/wireless/iwlwifi/mvm/rs.h        |   4 +-
 5 files changed, 177 insertions(+), 28 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index e4f589898eda..016d91384681 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -270,6 +270,7 @@ enum iwl_ucode_tlv_api {
  * @IWL_UCODE_TLV_CAPA_D0I3_SUPPORT: supports D0i3
  * @IWL_UCODE_TLV_CAPA_LAR_SUPPORT: supports Location Aware Regulatory
  * @IWL_UCODE_TLV_CAPA_UMAC_SCAN: supports UMAC scan.
+ * @IWL_UCODE_TLV_CAPA_BEAMFORMER: supports Beamformer
  * @IWL_UCODE_TLV_CAPA_TDLS_SUPPORT: support basic TDLS functionality
  * @IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT: supports insertion of current
  *	tx power value into TPC Report action frame and Link Measurement Report
@@ -288,6 +289,7 @@ enum iwl_ucode_tlv_capa {
 	IWL_UCODE_TLV_CAPA_D0I3_SUPPORT			= BIT(0),
 	IWL_UCODE_TLV_CAPA_LAR_SUPPORT			= BIT(1),
 	IWL_UCODE_TLV_CAPA_UMAC_SCAN			= BIT(2),
+	IWL_UCODE_TLV_CAPA_BEAMFORMER			= BIT(3),
 	IWL_UCODE_TLV_CAPA_TDLS_SUPPORT			= BIT(6),
 	IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT	= BIT(8),
 	IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT	= BIT(9),
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
index 6a2a6b0ab91b..4c33f2775dc9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
@@ -308,16 +308,33 @@ enum {
 #define LQ_FLAG_DYNAMIC_BW_POS          6
 #define LQ_FLAG_DYNAMIC_BW_MSK          (1 << LQ_FLAG_DYNAMIC_BW_POS)
 
-/* Single Stream Parameters
- * SS_STBC/BFER_ALLOWED - Controls whether STBC or Beamformer (BFER) is allowed
- * ucode will make a smart decision between SISO/STBC/BFER
- * SS_PARAMS_VALID - if not set ignore the ss_params field.
+/* Single Stream Tx Parameters (lq_cmd->ss_params)
+ * Flags to control a smart FW decision about whether BFER/STBC/SISO will be
+ * used for single stream Tx.
  */
-enum {
-	RS_SS_STBC_ALLOWED = BIT(0),
-	RS_SS_BFER_ALLOWED = BIT(1),
-	RS_SS_PARAMS_VALID = BIT(31),
-};
+
+/* Bit 0-1: Max STBC streams allowed. Can be 0-3.
+ * (0) - No STBC allowed
+ * (1) - 2x1 STBC allowed (HT/VHT)
+ * (2) - 4x2 STBC allowed (HT/VHT)
+ * (3) - 3x2 STBC allowed (HT only)
+ * All our chips are at most 2 antennas so only (1) is valid for now.
+ */
+#define LQ_SS_STBC_ALLOWED_POS          0
+#define LQ_SS_STBC_ALLOWED_MSK		(3 << LQ_SS_STBC_ALLOWED_MSK)
+
+/* 2x1 STBC is allowed */
+#define LQ_SS_STBC_1SS_ALLOWED		(1 << LQ_SS_STBC_ALLOWED_POS)
+
+/* Bit 2: Beamformer (VHT only) is allowed */
+#define LQ_SS_BFER_ALLOWED_POS		2
+#define LQ_SS_BFER_ALLOWED		(1 << LQ_SS_BFER_ALLOWED_POS)
+
+/* Bit 31: ss_params field is valid. Used for FW backward compatibility
+ * with other drivers which don't support the ss_params API yet
+ */
+#define LQ_SS_PARAMS_VALID_POS		31
+#define LQ_SS_PARAMS_VALID		(1 << LQ_SS_PARAMS_VALID_POS)
 
 /**
  * struct iwl_lq_cmd - link quality command
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index cfd7bfcb3fc6..51e02e6ba0ac 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -401,10 +401,15 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
 		hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 			&mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
-	if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
+	if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
 		hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 			&mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
 
+		if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER)
+			hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
+				IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
+	}
+
 	hw->wiphy->hw_version = mvm->trans->hw_id;
 
 	if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 9f32f2db95bd..95b718b4f8ab 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1805,7 +1805,7 @@ static bool rs_stbc_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	/* Our chip supports Tx STBC and the peer is an HT/VHT STA which
 	 * supports STBC of at least 1*SS
 	 */
-	if (!lq_sta->stbc)
+	if (!lq_sta->stbc_capable)
 		return false;
 
 	if (!iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta))
@@ -2626,7 +2626,7 @@ static void rs_ht_init(struct iwl_mvm *mvm,
 	if (mvm->cfg->ht_params->stbc &&
 	    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
 	    (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC))
-		lq_sta->stbc = true;
+		lq_sta->stbc_capable = true;
 
 	lq_sta->is_vht = false;
 }
@@ -2645,7 +2645,12 @@ static void rs_vht_init(struct iwl_mvm *mvm,
 	if (mvm->cfg->ht_params->stbc &&
 	    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
 	    (vht_cap->cap & IEEE80211_VHT_CAP_RXSTBC_MASK))
-		lq_sta->stbc = true;
+		lq_sta->stbc_capable = true;
+
+	if ((mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
+	    (num_of_ant(iwl_mvm_get_valid_tx_ant(mvm)) > 1) &&
+	    (vht_cap->cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE))
+		lq_sta->bfer_capable = true;
 
 	lq_sta->is_vht = true;
 }
@@ -2778,11 +2783,12 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		rs_get_max_rate_from_mask(lq_sta->active_mimo2_rate);
 
 	IWL_DEBUG_RATE(mvm,
-		       "RATE MASK: LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d LDPC=%d STBC=%d\n",
+		       "LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d LDPC=%d STBC=%d BFER=%d\n",
 		       lq_sta->active_legacy_rate,
 		       lq_sta->active_siso_rate,
 		       lq_sta->active_mimo2_rate,
-		       lq_sta->is_vht, lq_sta->ldpc, lq_sta->stbc);
+		       lq_sta->is_vht, lq_sta->ldpc, lq_sta->stbc_capable,
+		       lq_sta->bfer_capable);
 	IWL_DEBUG_RATE(mvm, "MAX RATE: LEGACY=%d SISO=%d MIMO2=%d\n",
 		       lq_sta->max_legacy_rate_idx,
 		       lq_sta->max_siso_rate_idx,
@@ -2916,23 +2922,15 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 	u8 valid_tx_ant = 0;
 	struct iwl_lq_cmd *lq_cmd = &lq_sta->lq;
 	bool toggle_ant = false;
-	bool stbc_allowed = false;
 
 	memcpy(&rate, initial_rate, sizeof(rate));
 
 	valid_tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
 
-	stbc_allowed = rs_stbc_allow(mvm, sta, lq_sta);
-	if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LQ_SS_PARAMS) {
-		u32 ss_params = RS_SS_PARAMS_VALID;
-
-		if (stbc_allowed)
-			ss_params |= RS_SS_STBC_ALLOWED;
-		lq_cmd->ss_params = cpu_to_le32(ss_params);
-	} else {
-		/* TODO: remove old API when min FW API hits 14 */
-		rate.stbc = stbc_allowed;
-	}
+	/* TODO: remove old API when min FW API hits 14 */
+	if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LQ_SS_PARAMS) &&
+	    rs_stbc_allow(mvm, sta, lq_sta))
+		rate.stbc = true;
 
 	if (is_siso(&rate)) {
 		num_rates = IWL_MVM_RS_INITIAL_SISO_NUM_RATES;
@@ -2980,6 +2978,128 @@ static void rs_build_rates_table(struct iwl_mvm *mvm,
 
 }
 
+struct rs_bfer_active_iter_data {
+	struct ieee80211_sta *exclude_sta;
+	struct iwl_mvm_sta *bfer_mvmsta;
+};
+
+static void rs_bfer_active_iter(void *_data,
+				struct ieee80211_sta *sta)
+{
+	struct rs_bfer_active_iter_data *data = _data;
+	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+	struct iwl_lq_cmd *lq_cmd = &mvmsta->lq_sta.lq;
+	u32 ss_params = le32_to_cpu(lq_cmd->ss_params);
+
+	if (sta == data->exclude_sta)
+		return;
+
+	/* The current sta has BFER allowed */
+	if (ss_params & LQ_SS_BFER_ALLOWED) {
+		WARN_ON_ONCE(data->bfer_mvmsta != NULL);
+
+		data->bfer_mvmsta = mvmsta;
+	}
+}
+
+static int rs_bfer_priority(struct iwl_mvm_sta *sta)
+{
+	int prio = -1;
+	enum nl80211_iftype viftype = ieee80211_vif_type_p2p(sta->vif);
+
+	switch (viftype) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_P2P_GO:
+		prio = 3;
+		break;
+	case NL80211_IFTYPE_P2P_CLIENT:
+		prio = 2;
+		break;
+	case NL80211_IFTYPE_STATION:
+		prio = 1;
+		break;
+	default:
+		WARN_ONCE(true, "viftype %d sta_id %d", viftype, sta->sta_id);
+		prio = -1;
+	}
+
+	return prio;
+}
+
+/* Returns >0 if sta1 has a higher BFER priority compared to sta2 */
+static int rs_bfer_priority_cmp(struct iwl_mvm_sta *sta1,
+				struct iwl_mvm_sta *sta2)
+{
+	int prio1 = rs_bfer_priority(sta1);
+	int prio2 = rs_bfer_priority(sta2);
+
+	if (prio1 > prio2)
+		return 1;
+	if (prio1 < prio2)
+		return -1;
+	return 0;
+}
+
+static void rs_set_lq_ss_params(struct iwl_mvm *mvm,
+				struct ieee80211_sta *sta,
+				struct iwl_lq_sta *lq_sta,
+				const struct rs_rate *initial_rate)
+{
+	struct iwl_lq_cmd *lq_cmd = &lq_sta->lq;
+	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+	struct rs_bfer_active_iter_data data = {
+		.exclude_sta = sta,
+		.bfer_mvmsta = NULL,
+	};
+	struct iwl_mvm_sta *bfer_mvmsta = NULL;
+	u32 ss_params = LQ_SS_PARAMS_VALID;
+
+	if (!iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta))
+		goto out;
+
+	if (lq_sta->stbc_capable)
+		ss_params |= LQ_SS_STBC_1SS_ALLOWED;
+
+	if (!lq_sta->bfer_capable)
+		goto out;
+
+	ieee80211_iterate_stations_atomic(mvm->hw,
+					  rs_bfer_active_iter,
+					  &data);
+	bfer_mvmsta = data.bfer_mvmsta;
+
+	/* This code is safe as it doesn't run concurrently for different
+	 * stations. This is guaranteed by the fact that calls to
+	 * ieee80211_tx_status wouldn't run concurrently for a single HW.
+	 */
+	if (!bfer_mvmsta) {
+		IWL_DEBUG_RATE(mvm, "No sta with BFER allowed found. Allow\n");
+
+		ss_params |= LQ_SS_BFER_ALLOWED;
+		goto out;
+	}
+
+	IWL_DEBUG_RATE(mvm, "Found existing sta %d with BFER activated\n",
+		       bfer_mvmsta->sta_id);
+
+	/* Disallow BFER on another STA if active and we're a higher priority */
+	if (rs_bfer_priority_cmp(mvmsta, bfer_mvmsta) > 0) {
+		struct iwl_lq_cmd *bfersta_lq_cmd = &bfer_mvmsta->lq_sta.lq;
+		u32 bfersta_ss_params = le32_to_cpu(bfersta_lq_cmd->ss_params);
+
+		bfersta_ss_params &= ~LQ_SS_BFER_ALLOWED;
+		bfersta_lq_cmd->ss_params = cpu_to_le32(bfersta_ss_params);
+		iwl_mvm_send_lq_cmd(mvm, bfersta_lq_cmd, false);
+
+		ss_params |= LQ_SS_BFER_ALLOWED;
+		IWL_DEBUG_RATE(mvm,
+			       "Lower priority BFER sta found (%d). Switch BFER\n",
+			       bfer_mvmsta->sta_id);
+	}
+out:
+	lq_cmd->ss_params = cpu_to_le32(ss_params);
+}
+
 static void rs_fill_lq_cmd(struct iwl_mvm *mvm,
 			   struct ieee80211_sta *sta,
 			   struct iwl_lq_sta *lq_sta,
@@ -3006,6 +3126,9 @@ static void rs_fill_lq_cmd(struct iwl_mvm *mvm,
 
 	rs_build_rates_table(mvm, sta, lq_sta, initial_rate);
 
+	if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LQ_SS_PARAMS)
+		rs_set_lq_ss_params(mvm, sta, lq_sta, initial_rate);
+
 	if (num_of_ant(initial_rate->ant) == 1)
 		lq_cmd->single_stream_ant_msk = initial_rate->ant;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index f8f5bf21cc38..ba57f5ae2375 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -293,7 +293,9 @@ struct iwl_lq_sta {
 	u64 last_tx;
 	bool is_vht;
 	bool ldpc;              /* LDPC Rx is supported by the STA */
-	bool stbc;              /* Tx STBC is supported by chip and Rx by STA */
+	bool stbc_capable;      /* Tx STBC is supported by chip and Rx by STA */
+	bool bfer_capable;      /* Remote supports beamformee and we BFer */
+
 	enum ieee80211_band band;
 
 	/* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */
-- 
cgit v1.2.3


From 1e9c62fa9158f35dfd73ef6231154710154e6e09 Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Wed, 28 Jan 2015 14:44:06 +0200
Subject: iwlwifi: mvm: rs: enable forcing single stream Tx decision

In certain testing scenarios we'd like to force a decision
between STBC/BFER/SISO. In the normal scenario this decision
is done by the FW. Enable this option vis debugfs.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h |  8 +++
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 84 ++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/rs.h        | 10 ++++
 3 files changed, 102 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
index 4c33f2775dc9..0f1ea80a55ef 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
@@ -330,6 +330,14 @@ enum {
 #define LQ_SS_BFER_ALLOWED_POS		2
 #define LQ_SS_BFER_ALLOWED		(1 << LQ_SS_BFER_ALLOWED_POS)
 
+/* Bit 3: Force BFER or STBC for testing
+ * If this is set:
+ * If BFER is allowed then force the ucode to choose BFER else
+ * If STBC is allowed then force the ucode to choose STBC over SISO
+ */
+#define LQ_SS_FORCE_POS			3
+#define LQ_SS_FORCE			(1 << LQ_SS_FORCE_POS)
+
 /* Bit 31: ss_params field is valid. Used for FW backward compatibility
  * with other drivers which don't support the ss_params API yet
  */
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 95b718b4f8ab..194bd1f939ca 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -39,6 +39,7 @@
 #include "sta.h"
 #include "iwl-op-mode.h"
 #include "mvm.h"
+#include "debugfs.h"
 
 #define RS_NAME "iwl-mvm-rs"
 
@@ -3057,6 +3058,20 @@ static void rs_set_lq_ss_params(struct iwl_mvm *mvm,
 	if (!iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta))
 		goto out;
 
+	/* Check if forcing the decision is configured.
+	 * Note that SISO is forced by not allowing STBC or BFER
+	 */
+	if (lq_sta->ss_force == RS_SS_FORCE_STBC)
+		ss_params |= (LQ_SS_STBC_1SS_ALLOWED | LQ_SS_FORCE);
+	else if (lq_sta->ss_force == RS_SS_FORCE_BFER)
+		ss_params |= (LQ_SS_BFER_ALLOWED | LQ_SS_FORCE);
+
+	if (lq_sta->ss_force != RS_SS_FORCE_NONE) {
+		IWL_DEBUG_RATE(mvm, "Forcing single stream Tx decision %d\n",
+			       lq_sta->ss_force);
+		goto out;
+	}
+
 	if (lq_sta->stbc_capable)
 		ss_params |= LQ_SS_STBC_1SS_ALLOWED;
 
@@ -3502,9 +3517,73 @@ static const struct file_operations rs_sta_dbgfs_drv_tx_stats_ops = {
 	.llseek = default_llseek,
 };
 
+static ssize_t iwl_dbgfs_ss_force_read(struct file *file,
+				       char __user *user_buf,
+				       size_t count, loff_t *ppos)
+{
+	struct iwl_lq_sta *lq_sta = file->private_data;
+	char buf[12];
+	int bufsz = sizeof(buf);
+	int pos = 0;
+	static const char * const ss_force_name[] = {
+		[RS_SS_FORCE_NONE] = "none",
+		[RS_SS_FORCE_STBC] = "stbc",
+		[RS_SS_FORCE_BFER] = "bfer",
+		[RS_SS_FORCE_SISO] = "siso",
+	};
+
+	pos += scnprintf(buf+pos, bufsz-pos, "%s\n",
+			 ss_force_name[lq_sta->ss_force]);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_dbgfs_ss_force_write(struct iwl_lq_sta *lq_sta, char *buf,
+					size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = lq_sta->pers.drv;
+	int ret = 0;
+
+	if (!strncmp("none", buf, 4)) {
+		lq_sta->ss_force = RS_SS_FORCE_NONE;
+	} else if (!strncmp("siso", buf, 4)) {
+		lq_sta->ss_force = RS_SS_FORCE_SISO;
+	} else if (!strncmp("stbc", buf, 4)) {
+		if (lq_sta->stbc_capable) {
+			lq_sta->ss_force = RS_SS_FORCE_STBC;
+		} else {
+			IWL_ERR(mvm,
+				"can't force STBC. peer doesn't support\n");
+			ret = -EINVAL;
+		}
+	} else if (!strncmp("bfer", buf, 4)) {
+		if (lq_sta->bfer_capable) {
+			lq_sta->ss_force = RS_SS_FORCE_BFER;
+		} else {
+			IWL_ERR(mvm,
+				"can't force BFER. peer doesn't support\n");
+			ret = -EINVAL;
+		}
+	} else {
+		IWL_ERR(mvm, "valid values none|siso|stbc|bfer\n");
+		ret = -EINVAL;
+	}
+	return ret ?: count;
+}
+
+#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
+	_MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_lq_sta)
+#define MVM_DEBUGFS_ADD_FILE_RS(name, parent, mode) do {		\
+		if (!debugfs_create_file(#name, mode, parent, lq_sta,	\
+					 &iwl_dbgfs_##name##_ops))	\
+			goto err;					\
+	} while (0)
+
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(ss_force, 32);
+
 static void rs_add_debugfs(void *mvm, void *mvm_sta, struct dentry *dir)
 {
 	struct iwl_lq_sta *lq_sta = mvm_sta;
+
 	debugfs_create_file("rate_scale_table", S_IRUSR | S_IWUSR, dir,
 			    lq_sta, &rs_sta_dbgfs_scale_table_ops);
 	debugfs_create_file("rate_stats_table", S_IRUSR, dir,
@@ -3515,6 +3594,11 @@ static void rs_add_debugfs(void *mvm, void *mvm_sta, struct dentry *dir)
 			  &lq_sta->tx_agg_tid_en);
 	debugfs_create_u8("reduced_tpc", S_IRUSR | S_IWUSR, dir,
 			  &lq_sta->pers.dbg_fixed_txp_reduction);
+
+	MVM_DEBUGFS_ADD_FILE_RS(ss_force, dir, S_IRUSR | S_IWUSR);
+	return;
+err:
+	IWL_ERR((struct iwl_mvm *)mvm, "Can't create debugfs entity\n");
 }
 
 static void rs_remove_debugfs(void *mvm, void *mvm_sta)
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index ba57f5ae2375..dc4ef3dfafe1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -240,6 +240,13 @@ enum rs_column {
 	RS_COLUMN_INVALID,
 };
 
+enum rs_ss_force_opt {
+	RS_SS_FORCE_NONE = 0,
+	RS_SS_FORCE_STBC,
+	RS_SS_FORCE_BFER,
+	RS_SS_FORCE_SISO,
+};
+
 /* Packet stats per rate */
 struct rs_rate_stats {
 	u64 success;
@@ -324,6 +331,9 @@ struct iwl_lq_sta {
 	/* tx power reduce for this sta */
 	int tpc_reduce;
 
+	/* force STBC/BFER/SISO for testing */
+	enum rs_ss_force_opt ss_force;
+
 	/* persistent fields - initialized only once - keep last! */
 	struct lq_sta_pers {
 #ifdef CONFIG_MAC80211_DEBUGFS
-- 
cgit v1.2.3


From 5cb1270143668fa72007b52a8be6b4aa2c182809 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Thu, 22 Jan 2015 12:19:26 +0200
Subject: iwlwifi: mvm: improve TDLS ch-sw state machine

Add a response-received state and add more limits on allowed requests
in each state of the connection. Previously ch-switch requests from
other peers could interrupt an outgoing active ch-switch. Also stale
packets from the current peer could disrupt the channel switch state.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mvm.h  |  1 +
 drivers/net/wireless/iwlwifi/mvm/tdls.c | 48 +++++++++++++++++++++++----------
 2 files changed, 35 insertions(+), 14 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 7773ffc4ca62..fc80b7b43b21 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -532,6 +532,7 @@ enum {
 enum iwl_mvm_tdls_cs_state {
 	IWL_MVM_TDLS_SW_IDLE = 0,
 	IWL_MVM_TDLS_SW_REQ_SENT,
+	IWL_MVM_TDLS_SW_RESP_RCVD,
 	IWL_MVM_TDLS_SW_REQ_RCVD,
 	IWL_MVM_TDLS_SW_ACTIVE,
 };
diff --git a/drivers/net/wireless/iwlwifi/mvm/tdls.c b/drivers/net/wireless/iwlwifi/mvm/tdls.c
index c0e00bae5bd0..ea1831ccc8f3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tdls.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tdls.c
@@ -228,6 +228,8 @@ iwl_mvm_tdls_cs_state_str(enum iwl_mvm_tdls_cs_state state)
 		return "IDLE";
 	case IWL_MVM_TDLS_SW_REQ_SENT:
 		return "REQ SENT";
+	case IWL_MVM_TDLS_SW_RESP_RCVD:
+		return "RESP RECEIVED";
 	case IWL_MVM_TDLS_SW_REQ_RCVD:
 		return "REQ RECEIVED";
 	case IWL_MVM_TDLS_SW_ACTIVE:
@@ -325,17 +327,27 @@ iwl_mvm_tdls_check_action(struct iwl_mvm *mvm,
 			ret = -EINVAL;
 		break;
 	case IWL_MVM_TDLS_SW_REQ_SENT:
+		/* only allow requests from the same peer */
+		if (!same_peer)
+			ret = -EBUSY;
+		else if (type == TDLS_SEND_CHAN_SW_RESP_AND_MOVE_CH &&
+			 !peer_initiator)
+			/*
+			 * We received a ch-switch request while an outgoing
+			 * one is pending. Allow it if the peer is the link
+			 * initiator.
+			 */
+			ret = -EBUSY;
+		else if (type == TDLS_SEND_CHAN_SW_REQ)
+			/* wait for idle before sending another request */
+			ret = -EBUSY;
+		break;
+	case IWL_MVM_TDLS_SW_RESP_RCVD:
 		/*
-		 * We received a ch-switch request while an outgoing one is
-		 * pending. Allow it to proceed if the other peer is the same
-		 * one we sent to, and we are not the link initiator.
+		 * we are waiting for the FW to give an "active" notification,
+		 * so ignore requests in the meantime
 		 */
-		if (type == TDLS_SEND_CHAN_SW_RESP_AND_MOVE_CH) {
-			if (!same_peer)
-				ret = -EBUSY;
-			else if (!peer_initiator) /* we are the initiator */
-				ret = -EBUSY;
-		}
+		ret = -EBUSY;
 		break;
 	case IWL_MVM_TDLS_SW_REQ_RCVD:
 		/* as above, allow the link initiator to proceed */
@@ -349,9 +361,12 @@ iwl_mvm_tdls_check_action(struct iwl_mvm *mvm,
 		}
 		break;
 	case IWL_MVM_TDLS_SW_ACTIVE:
-		/* we don't allow initiations during active channel switch */
-		if (type == TDLS_SEND_CHAN_SW_REQ)
-			ret = -EINVAL;
+		/*
+		 * the only valid request when active is a request to return
+		 * to the base channel by the current off-channel peer
+		 */
+		if (type != TDLS_MOVE_CH || !same_peer)
+			ret = -EBUSY;
 		break;
 	}
 
@@ -473,6 +488,8 @@ iwl_mvm_tdls_config_channel_switch(struct iwl_mvm *mvm,
 					     type == TDLS_SEND_CHAN_SW_REQ ?
 					     IWL_MVM_TDLS_SW_REQ_SENT :
 					     IWL_MVM_TDLS_SW_REQ_RCVD);
+	} else {
+		iwl_mvm_tdls_update_cs_state(mvm, IWL_MVM_TDLS_SW_RESP_RCVD);
 	}
 
 out:
@@ -657,12 +674,15 @@ iwl_mvm_tdls_recv_channel_switch(struct ieee80211_hw *hw,
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	enum iwl_tdls_channel_switch_type type;
 	unsigned int delay;
+	const char *action_str =
+		params->action_code == WLAN_TDLS_CHANNEL_SWITCH_REQUEST ?
+		"REQ" : "RESP";
 
 	mutex_lock(&mvm->mutex);
 
 	IWL_DEBUG_TDLS(mvm,
-		       "Received TDLS ch switch action %d from %pM status %d\n",
-		       params->action_code, params->sta->addr, params->status);
+		       "Received TDLS ch switch action %s from %pM status %d\n",
+		       action_str, params->sta->addr, params->status);
 
 	/*
 	 * we got a non-zero status from a peer we were switching to - move to
-- 
cgit v1.2.3


From b9dccdb33c4dc86922d025d02e91715ad9510732 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Thu, 22 Jan 2015 14:24:44 +0200
Subject: iwlwifi: mvm: ignore stale TDLS ch-switch responses

During out-of-channel activities (e.g. scan) TDLS ch-switch responses from
a peer are kept in FW. These packets arrive only after the out-of-channel
activity is complete, which can be in the order of several seconds.

Since TDLS ch-sw has no dialog-token-like mechanism for distinguishing
sessions, use the GP2 time of the incoming ch-switch response to discern
validity. For this purpose record the GP2 time of an outgoing TDLS ch-sw
request and compare to the Rx time of the ch-sw response.
The methods works in practice since the GP2 time of FW-deferred Rx is
accurate and contains the real Rx timestamp.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mvm.h  |  3 +++
 drivers/net/wireless/iwlwifi/mvm/tdls.c | 15 +++++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index fc80b7b43b21..ed097268a1bc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -798,6 +798,9 @@ struct iwl_mvm {
 			struct cfg80211_chan_def chandef;
 			struct sk_buff *skb; /* ch sw template */
 			u32 ch_sw_tm_ie;
+
+			/* timestamp of last ch-sw request sent (GP2 time) */
+			u32 sent_timestamp;
 		} peer;
 	} tdls_cs;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/tdls.c b/drivers/net/wireless/iwlwifi/mvm/tdls.c
index ea1831ccc8f3..a87b506c8c72 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tdls.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tdls.c
@@ -64,6 +64,8 @@
 #include <linux/etherdevice.h>
 #include "mvm.h"
 #include "time-event.h"
+#include "iwl-io.h"
+#include "iwl-prph.h"
 
 #define TU_TO_US(x) (x * 1024)
 #define TU_TO_MS(x) (TU_TO_US(x) / 1000)
@@ -250,6 +252,11 @@ static void iwl_mvm_tdls_update_cs_state(struct iwl_mvm *mvm,
 		       iwl_mvm_tdls_cs_state_str(state));
 	mvm->tdls_cs.state = state;
 
+	/* we only send requests to our switching peer - update sent time */
+	if (state == IWL_MVM_TDLS_SW_REQ_SENT)
+		mvm->tdls_cs.peer.sent_timestamp =
+			iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG);
+
 	if (state == IWL_MVM_TDLS_SW_IDLE)
 		mvm->tdls_cs.cur_sta_id = IWL_MVM_STATION_COUNT;
 }
@@ -302,7 +309,7 @@ out:
 static int
 iwl_mvm_tdls_check_action(struct iwl_mvm *mvm,
 			  enum iwl_tdls_channel_switch_type type,
-			  const u8 *peer, bool peer_initiator)
+			  const u8 *peer, bool peer_initiator, u32 timestamp)
 {
 	bool same_peer = false;
 	int ret = 0;
@@ -341,6 +348,9 @@ iwl_mvm_tdls_check_action(struct iwl_mvm *mvm,
 		else if (type == TDLS_SEND_CHAN_SW_REQ)
 			/* wait for idle before sending another request */
 			ret = -EBUSY;
+		else if (timestamp <= mvm->tdls_cs.peer.sent_timestamp)
+			/* we got a stale response - ignore it */
+			ret = -EINVAL;
 		break;
 	case IWL_MVM_TDLS_SW_RESP_RCVD:
 		/*
@@ -399,7 +409,8 @@ iwl_mvm_tdls_config_channel_switch(struct iwl_mvm *mvm,
 
 	lockdep_assert_held(&mvm->mutex);
 
-	ret = iwl_mvm_tdls_check_action(mvm, type, peer, peer_initiator);
+	ret = iwl_mvm_tdls_check_action(mvm, type, peer, peer_initiator,
+					timestamp);
 	if (ret)
 		return ret;
 
-- 
cgit v1.2.3


From ce71c2f7976881f39fcf14f28bd7633612acd0ef Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 11 Jan 2015 17:19:39 +0200
Subject: iwlwifi: mvm: enable watchdog on Tx queues for mvm

This watchdog allows to monitor the transmit queues. When a
queue doesn't progress for a too long time, a timer fires
and then, debug data can be collected.
This watchdog has never been enabled on dvm controlled
devices, so don't enable it there.
In order to have it running on mvm controlled devices, we
need to fix a small issue in the transport layer: mvm
controlled devices use the shadow registers optimization.
In this case, the watchdog wasn't running at all, even if
enabled by the module parameter. Fix that on the way.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/dvm/main.c      | 6 +-----
 drivers/net/wireless/iwlwifi/iwl-drv.c       | 5 -----
 drivers/net/wireless/iwlwifi/iwl-modparams.h | 2 --
 drivers/net/wireless/iwlwifi/mvm/mvm.h       | 2 ++
 drivers/net/wireless/iwlwifi/mvm/ops.c       | 9 ++++++---
 drivers/net/wireless/iwlwifi/pcie/tx.c       | 2 +-
 6 files changed, 10 insertions(+), 16 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index de43dd7e170a..a21400cd84ac 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -1228,11 +1228,7 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 	trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
 	trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
 	trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
-	if (!iwlwifi_mod_params.wd_disable)
-		trans_cfg.queue_watchdog_timeout =
-			priv->cfg->base_params->wd_timeout;
-	else
-		trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
+	trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
 	trans_cfg.command_names = iwl_dvm_cmd_strings;
 	trans_cfg.cmd_fifo = IWLAGN_CMD_FIFO_NUM;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index e7c0df6db6ee..996e7f16adf9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -1367,7 +1367,6 @@ struct iwl_mod_params iwlwifi_mod_params = {
 	.restart_fw = true,
 	.bt_coex_active = true,
 	.power_level = IWL_POWER_INDEX_1,
-	.wd_disable = true,
 	.d0i3_disable = true,
 #ifndef CONFIG_IWLWIFI_UAPSD
 	.uapsd_disable = true,
@@ -1478,10 +1477,6 @@ module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
 MODULE_PARM_DESC(antenna_coupling,
 		 "specify antenna coupling in dB (default: 0 dB)");
 
-module_param_named(wd_disable, iwlwifi_mod_params.wd_disable, int, S_IRUGO);
-MODULE_PARM_DESC(wd_disable,
-		"Disable stuck queue watchdog timer 0=system default, 1=disable (default: 1)");
-
 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
 MODULE_PARM_DESC(nvm_file, "NVM file name");
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-modparams.h b/drivers/net/wireless/iwlwifi/iwl-modparams.h
index 2a8cf4b2445c..e8eabd21ccfe 100644
--- a/drivers/net/wireless/iwlwifi/iwl-modparams.h
+++ b/drivers/net/wireless/iwlwifi/iwl-modparams.h
@@ -96,7 +96,6 @@ enum iwl_disable_11n {
  *	use IWL_[DIS,EN]ABLE_HT_* constants
  * @amsdu_size_8K: enable 8K amsdu size, default = 0
  * @restart_fw: restart firmware, default = 1
- * @wd_disable: disable stuck queue check, default = 1
  * @bt_coex_active: enable bt coex, default = true
  * @led_mode: system default, default = 0
  * @power_save: enable power save, default = false
@@ -111,7 +110,6 @@ struct iwl_mod_params {
 	unsigned int disable_11n;
 	int amsdu_size_8K;
 	bool restart_fw;
-	int  wd_disable;
 	bool bt_coex_active;
 	int led_mode;
 	bool power_save;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index ed097268a1bc..4a7620cb5775 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -119,11 +119,13 @@ extern const struct ieee80211_ops iwl_mvm_hw_ops;
  *	We will register to mac80211 to have testmode working. The NIC must not
  *	be up'ed after the INIT fw asserted. This is useful to be able to use
  *	proprietary tools over testmode to debug the INIT fw.
+ * @tfd_q_hang_detect: enabled the detection of hung transmit queues
  * @power_scheme: CAM(Continuous Active Mode)-1, BPS(Balanced Power
  *	Save)-2(default), LP(Low Power)-3
  */
 struct iwl_mvm_mod_params {
 	bool init_dbg;
+	bool tfd_q_hang_detect;
 	int power_scheme;
 };
 extern struct iwl_mvm_mod_params iwlmvm_mod_params;
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index b1dea6800b3b..f801824197e1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -93,6 +93,7 @@ static const struct iwl_op_mode_ops iwl_mvm_ops;
 
 struct iwl_mvm_mod_params iwlmvm_mod_params = {
 	.power_scheme = IWL_POWER_SCHEME_BPS,
+	.tfd_q_hang_detect = true
 	/* rest of fields are 0 by default */
 };
 
@@ -102,6 +103,10 @@ MODULE_PARM_DESC(init_dbg,
 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
 MODULE_PARM_DESC(power_scheme,
 		 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
+module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect,
+		   bool, S_IRUGO);
+MODULE_PARM_DESC(tfd_q_hang_detect,
+		 "TFD queues hang detection (default: true");
 
 /*
  * module init and exit functions
@@ -473,10 +478,8 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
 		trans_cfg.bc_table_dword = true;
 
-	if (!iwlwifi_mod_params.wd_disable)
+	if (iwlmvm_mod_params.tfd_q_hang_detect)
 		trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout;
-	else
-		trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
 
 	trans_cfg.command_names = iwl_mvm_cmd_strings;
 
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 59aefa43ea85..bb9dd3ecbcf5 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1849,7 +1849,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
 
 	/* start timer if queue currently empty */
 	if (q->read_ptr == q->write_ptr) {
-		if (txq->need_update && trans_pcie->wd_timeout)
+		if (trans_pcie->wd_timeout)
 			mod_timer(&txq->stuck_timer,
 				  jiffies + trans_pcie->wd_timeout);
 		IWL_DEBUG_RPM(trans, "Q: %d first tx - take ref\n", q->id);
-- 
cgit v1.2.3


From 4cf677fd547d7671835d799e4d377b949510c642 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 12 Jan 2015 14:38:29 +0200
Subject: iwlwifi: allow to define the stuck queue timer per queue

Different queue can have different behavior. While it can be
unacceptable for a certain queue to be stuck for 2 seconds
(e.g. the command queue), it can happen that another queue
will stay stuck for even longer (a queue servicing a power
saving client in GO).
The op_mode can even make the timeout be a function of the
listen interval.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/dvm/main.c      |  3 +-
 drivers/net/wireless/iwlwifi/dvm/tx.c        |  2 +-
 drivers/net/wireless/iwlwifi/dvm/ucode.c     |  2 +-
 drivers/net/wireless/iwlwifi/iwl-config.h    |  2 +-
 drivers/net/wireless/iwlwifi/iwl-trans.h     | 29 +++++++++++---------
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c  | 10 +++++--
 drivers/net/wireless/iwlwifi/mvm/mvm.h       | 15 ++++++----
 drivers/net/wireless/iwlwifi/mvm/ops.c       |  8 ++++--
 drivers/net/wireless/iwlwifi/mvm/sta.c       | 15 ++++++++--
 drivers/net/wireless/iwlwifi/mvm/utils.c     |  8 ++++--
 drivers/net/wireless/iwlwifi/pcie/internal.h | 10 +++----
 drivers/net/wireless/iwlwifi/pcie/trans.c    |  4 +--
 drivers/net/wireless/iwlwifi/pcie/tx.c       | 41 +++++++++++++++-------------
 13 files changed, 87 insertions(+), 62 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c
index a21400cd84ac..c4d6dd7402d9 100644
--- a/drivers/net/wireless/iwlwifi/dvm/main.c
+++ b/drivers/net/wireless/iwlwifi/dvm/main.c
@@ -1228,7 +1228,8 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
 	trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
 	trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
 	trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
-	trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
+	trans_cfg.cmd_q_wdg_timeout = IWL_WATCHDOG_DISABLED;
+
 	trans_cfg.command_names = iwl_dvm_cmd_strings;
 	trans_cfg.cmd_fifo = IWLAGN_CMD_FIFO_NUM;
 
diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index d1ce3ce13591..1e40a12de077 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -715,7 +715,7 @@ int iwlagn_tx_agg_oper(struct iwl_priv *priv, struct ieee80211_vif *vif,
 	fifo = ctx->ac_to_fifo[tid_to_ac[tid]];
 
 	iwl_trans_txq_enable(priv->trans, q, fifo, sta_priv->sta_id, tid,
-			     buf_size, ssn);
+			     buf_size, ssn, 0);
 
 	/*
 	 * If the limit is 0, then it wasn't initialised yet,
diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c
index d5cee1530597..4dbef7e58c2e 100644
--- a/drivers/net/wireless/iwlwifi/dvm/ucode.c
+++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c
@@ -267,7 +267,7 @@ static int iwl_alive_notify(struct iwl_priv *priv)
 	for (i = 0; i < n_queues; i++)
 		if (queue_to_txf[i] != IWL_TX_FIFO_UNUSED)
 			iwl_trans_ac_txq_enable(priv->trans, i,
-						queue_to_txf[i]);
+						queue_to_txf[i], 0);
 
 	priv->passive_no_rx = false;
 	priv->transport_queue_stop = 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index 445bff690a63..4b190d98a1ec 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -126,7 +126,7 @@ enum iwl_led_mode {
 
 /* TX queue watchdog timeouts in mSecs */
 #define IWL_WATCHDOG_DISABLED	0
-#define IWL_DEF_WD_TIMEOUT	2000
+#define IWL_DEF_WD_TIMEOUT	2500
 #define IWL_LONG_WD_TIMEOUT	10000
 #define IWL_MAX_WD_TIMEOUT	120000
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 84d8477432a2..a96bd8db6ceb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -368,6 +368,7 @@ enum iwl_trans_status {
  * @cmd_queue: the index of the command queue.
  *	Must be set before start_fw.
  * @cmd_fifo: the fifo for host commands
+ * @cmd_q_wdg_timeout: the timeout of the watchdog timer for the command queue.
  * @no_reclaim_cmds: Some devices erroneously don't set the
  *	SEQ_RX_FRAME bit on some notifications, this is the
  *	list of such notifications to filter. Max length is
@@ -378,8 +379,6 @@ enum iwl_trans_status {
  * @bc_table_dword: set to true if the BC table expects the byte count to be
  *	in DWORD (as opposed to bytes)
  * @scd_set_active: should the transport configure the SCD for HCMD queue
- * @queue_watchdog_timeout: time (in ms) after which queues
- *	are considered stuck and will trigger device restart
  * @command_names: array of command names, must be 256 entries
  *	(one for each command); for debugging only
  * @sdio_adma_addr: the default address to set for the ADMA in SDIO mode until
@@ -390,13 +389,13 @@ struct iwl_trans_config {
 
 	u8 cmd_queue;
 	u8 cmd_fifo;
+	unsigned int cmd_q_wdg_timeout;
 	const u8 *no_reclaim_cmds;
 	unsigned int n_no_reclaim_cmds;
 
 	bool rx_buf_size_8k;
 	bool bc_table_dword;
 	bool scd_set_active;
-	unsigned int queue_watchdog_timeout;
 	const char *const *command_names;
 
 	u32 sdio_adma_addr;
@@ -511,7 +510,8 @@ struct iwl_trans_ops {
 			struct sk_buff_head *skbs);
 
 	void (*txq_enable)(struct iwl_trans *trans, int queue, u16 ssn,
-			   const struct iwl_trans_txq_scd_cfg *cfg);
+			   const struct iwl_trans_txq_scd_cfg *cfg,
+			   unsigned int queue_wdg_timeout);
 	void (*txq_disable)(struct iwl_trans *trans, int queue,
 			    bool configure_scd);
 
@@ -829,19 +829,21 @@ static inline void iwl_trans_txq_disable(struct iwl_trans *trans, int queue,
 
 static inline void
 iwl_trans_txq_enable_cfg(struct iwl_trans *trans, int queue, u16 ssn,
-			 const struct iwl_trans_txq_scd_cfg *cfg)
+			 const struct iwl_trans_txq_scd_cfg *cfg,
+			 unsigned int queue_wdg_timeout)
 {
 	might_sleep();
 
 	if (unlikely((trans->state != IWL_TRANS_FW_ALIVE)))
 		IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state);
 
-	trans->ops->txq_enable(trans, queue, ssn, cfg);
+	trans->ops->txq_enable(trans, queue, ssn, cfg, queue_wdg_timeout);
 }
 
 static inline void iwl_trans_txq_enable(struct iwl_trans *trans, int queue,
 					int fifo, int sta_id, int tid,
-					int frame_limit, u16 ssn)
+					int frame_limit, u16 ssn,
+					unsigned int queue_wdg_timeout)
 {
 	struct iwl_trans_txq_scd_cfg cfg = {
 		.fifo = fifo,
@@ -851,11 +853,12 @@ static inline void iwl_trans_txq_enable(struct iwl_trans *trans, int queue,
 		.aggregate = sta_id >= 0,
 	};
 
-	iwl_trans_txq_enable_cfg(trans, queue, ssn, &cfg);
+	iwl_trans_txq_enable_cfg(trans, queue, ssn, &cfg, queue_wdg_timeout);
 }
 
-static inline void iwl_trans_ac_txq_enable(struct iwl_trans *trans, int queue,
-					   int fifo)
+static inline
+void iwl_trans_ac_txq_enable(struct iwl_trans *trans, int queue, int fifo,
+			     unsigned int queue_wdg_timeout)
 {
 	struct iwl_trans_txq_scd_cfg cfg = {
 		.fifo = fifo,
@@ -865,16 +868,16 @@ static inline void iwl_trans_ac_txq_enable(struct iwl_trans *trans, int queue,
 		.aggregate = false,
 	};
 
-	iwl_trans_txq_enable_cfg(trans, queue, 0, &cfg);
+	iwl_trans_txq_enable_cfg(trans, queue, 0, &cfg, queue_wdg_timeout);
 }
 
 static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans,
-						u32 txq_bm)
+						u32 txqs)
 {
 	if (unlikely(trans->state != IWL_TRANS_FW_ALIVE))
 		IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state);
 
-	return trans->ops->wait_tx_queue_empty(trans, txq_bm);
+	return trans->ops->wait_tx_queue_empty(trans, txqs);
 }
 
 static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 8bf78fa8ace0..7bdc6220743f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -462,6 +462,9 @@ exit_fail:
 
 int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 {
+	unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ?
+					mvm->cfg->base_params->wd_timeout :
+					IWL_WATCHDOG_DISABLED;
 	u32 ac;
 	int ret;
 
@@ -474,16 +477,17 @@ int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	switch (vif->type) {
 	case NL80211_IFTYPE_P2P_DEVICE:
 		iwl_mvm_enable_ac_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE,
-				      IWL_MVM_TX_FIFO_VO);
+				      IWL_MVM_TX_FIFO_VO, wdg_timeout);
 		break;
 	case NL80211_IFTYPE_AP:
 		iwl_mvm_enable_ac_txq(mvm, vif->cab_queue,
-				      IWL_MVM_TX_FIFO_MCAST);
+				      IWL_MVM_TX_FIFO_MCAST, wdg_timeout);
 		/* fall through */
 	default:
 		for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 			iwl_mvm_enable_ac_txq(mvm, vif->hw_queue[ac],
-					      iwl_mvm_ac_to_tx_fifo[ac]);
+					      iwl_mvm_ac_to_tx_fifo[ac],
+					      wdg_timeout);
 		break;
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 4a7620cb5775..6c69d0584f6c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -1318,11 +1318,13 @@ static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)
 
 /* hw scheduler queue config */
 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn,
-			const struct iwl_trans_txq_scd_cfg *cfg);
+			const struct iwl_trans_txq_scd_cfg *cfg,
+			unsigned int wdg_timeout);
 void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, u8 flags);
 
-static inline void iwl_mvm_enable_ac_txq(struct iwl_mvm *mvm, int queue,
-					 u8 fifo)
+static inline
+void iwl_mvm_enable_ac_txq(struct iwl_mvm *mvm, int queue,
+			   u8 fifo, unsigned int wdg_timeout)
 {
 	struct iwl_trans_txq_scd_cfg cfg = {
 		.fifo = fifo,
@@ -1331,12 +1333,13 @@ static inline void iwl_mvm_enable_ac_txq(struct iwl_mvm *mvm, int queue,
 		.frame_limit = IWL_FRAME_LIMIT,
 	};
 
-	iwl_mvm_enable_txq(mvm, queue, 0, &cfg);
+	iwl_mvm_enable_txq(mvm, queue, 0, &cfg, wdg_timeout);
 }
 
 static inline void iwl_mvm_enable_agg_txq(struct iwl_mvm *mvm, int queue,
 					  int fifo, int sta_id, int tid,
-					  int frame_limit, u16 ssn)
+					  int frame_limit, u16 ssn,
+					  unsigned int wdg_timeout)
 {
 	struct iwl_trans_txq_scd_cfg cfg = {
 		.fifo = fifo,
@@ -1346,7 +1349,7 @@ static inline void iwl_mvm_enable_agg_txq(struct iwl_mvm *mvm, int queue,
 		.aggregate = true,
 	};
 
-	iwl_mvm_enable_txq(mvm, queue, ssn, &cfg);
+	iwl_mvm_enable_txq(mvm, queue, ssn, &cfg, wdg_timeout);
 }
 
 /* Assoc status */
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index f801824197e1..b6181efa9921 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -478,9 +478,6 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
 		trans_cfg.bc_table_dword = true;
 
-	if (iwlmvm_mod_params.tfd_q_hang_detect)
-		trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout;
-
 	trans_cfg.command_names = iwl_mvm_cmd_strings;
 
 	trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
@@ -489,6 +486,11 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 
 	trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
 
+	/* Set a short watchdog for the command queue */
+	trans_cfg.cmd_q_wdg_timeout =
+		iwlmvm_mod_params.tfd_q_hang_detect ? IWL_DEF_WD_TIMEOUT :
+						      IWL_WATCHDOG_DISABLED;
+
 	snprintf(mvm->hw->wiphy->fw_version,
 		 sizeof(mvm->hw->wiphy->fw_version),
 		 "%s", fw->fw_version);
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index 14a848480d04..5c23cddaaae3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -209,6 +209,9 @@ static int iwl_mvm_tdls_sta_init(struct iwl_mvm *mvm,
 {
 	unsigned long used_hw_queues;
 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
+	unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ?
+					mvm->cfg->base_params->wd_timeout :
+					IWL_WATCHDOG_DISABLED;
 	u32 ac;
 
 	lockdep_assert_held(&mvm->mutex);
@@ -232,7 +235,7 @@ static int iwl_mvm_tdls_sta_init(struct iwl_mvm *mvm,
 	/* Found a place for all queues - enable them */
 	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 		iwl_mvm_enable_ac_txq(mvm, mvmsta->hw_queue[ac],
-				      iwl_mvm_ac_to_tx_fifo[ac]);
+				      iwl_mvm_ac_to_tx_fifo[ac], wdg_timeout);
 		mvmsta->tfd_queue_msk |= BIT(mvmsta->hw_queue[ac]);
 	}
 
@@ -626,13 +629,16 @@ static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm,
 
 int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm)
 {
+	unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ?
+					mvm->cfg->base_params->wd_timeout :
+					IWL_WATCHDOG_DISABLED;
 	int ret;
 
 	lockdep_assert_held(&mvm->mutex);
 
 	/* Map Aux queue to fifo - needs to happen before adding Aux station */
 	iwl_mvm_enable_ac_txq(mvm, mvm->aux_queue,
-			      IWL_MVM_TX_FIFO_MCAST);
+			      IWL_MVM_TX_FIFO_MCAST, wdg_timeout);
 
 	/* Allocate aux station and assign to it the aux queue */
 	ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, BIT(mvm->aux_queue),
@@ -965,6 +971,9 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 {
 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 	struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
+	unsigned int wdg_timeout = iwlmvm_mod_params.tfd_q_hang_detect ?
+					mvm->cfg->base_params->wd_timeout :
+					IWL_WATCHDOG_DISABLED;
 	int queue, fifo, ret;
 	u16 ssn;
 
@@ -988,7 +997,7 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		return -EIO;
 
 	iwl_mvm_enable_agg_txq(mvm, queue, fifo, mvmsta->sta_id, tid,
-			       buf_size, ssn);
+			       buf_size, ssn, wdg_timeout);
 
 	/*
 	 * Even though in theory the peer could have different
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 02f434d32800..8decf9953229 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -531,7 +531,8 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
 }
 
 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn,
-			const struct iwl_trans_txq_scd_cfg *cfg)
+			const struct iwl_trans_txq_scd_cfg *cfg,
+			unsigned int wdg_timeout)
 {
 	struct iwl_scd_txq_cfg_cmd cmd = {
 		.scd_queue = queue,
@@ -545,11 +546,12 @@ void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn,
 	};
 
 	if (!iwl_mvm_is_scd_cfg_supported(mvm)) {
-		iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, cfg);
+		iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, cfg,
+					 wdg_timeout);
 		return;
 	}
 
-	iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL);
+	iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout);
 	WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd),
 	     "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo);
 }
diff --git a/drivers/net/wireless/iwlwifi/pcie/internal.h b/drivers/net/wireless/iwlwifi/pcie/internal.h
index e5652d82d79e..cae0eb8835ce 100644
--- a/drivers/net/wireless/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/iwlwifi/pcie/internal.h
@@ -216,6 +216,7 @@ struct iwl_pcie_txq_scratch_buf {
  * @need_update: indicates need to update read/write index
  * @active: stores if queue is active
  * @ampdu: true if this queue is an ampdu queue for an specific RA/TID
+ * @wd_timeout: queue watchdog timeout (jiffies) - per queue
  *
  * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
  * descriptors) and required locking structures.
@@ -232,6 +233,7 @@ struct iwl_txq {
 	bool need_update;
 	u8 active;
 	bool ampdu;
+	unsigned long wd_timeout;
 };
 
 static inline dma_addr_t
@@ -259,7 +261,6 @@ iwl_pcie_get_scratchbuf_dma(struct iwl_txq *txq, int idx)
  * @bc_table_dword: true if the BC table expects DWORD (as opposed to bytes)
  * @scd_set_active: should the transport configure the SCD for HCMD queue
  * @rx_page_order: page order for receive buffer size
- * @wd_timeout: queue watchdog timeout (jiffies)
  * @reg_lock: protect hw register access
  * @cmd_in_flight: true when we have a host command in flight
  * @fw_mon_phys: physical address of the buffer for the firmware monitor
@@ -302,6 +303,7 @@ struct iwl_trans_pcie {
 
 	u8 cmd_queue;
 	u8 cmd_fifo;
+	unsigned int cmd_q_wdg_timeout;
 	u8 n_no_reclaim_cmds;
 	u8 no_reclaim_cmds[MAX_NO_RECLAIM_CMDS];
 
@@ -312,9 +314,6 @@ struct iwl_trans_pcie {
 
 	const char *const *command_names;
 
-	/* queue watchdog */
-	unsigned long wd_timeout;
-
 	/*protect hw register */
 	spinlock_t reg_lock;
 	bool cmd_in_flight;
@@ -373,7 +372,8 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr);
 int iwl_pcie_tx_stop(struct iwl_trans *trans);
 void iwl_pcie_tx_free(struct iwl_trans *trans);
 void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int queue, u16 ssn,
-			       const struct iwl_trans_txq_scd_cfg *cfg);
+			       const struct iwl_trans_txq_scd_cfg *cfg,
+			       unsigned int wdg_timeout);
 void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int queue,
 				bool configure_scd);
 int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index eb0ffc158b30..69935aa5a1b3 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1269,6 +1269,7 @@ static void iwl_trans_pcie_configure(struct iwl_trans *trans,
 
 	trans_pcie->cmd_queue = trans_cfg->cmd_queue;
 	trans_pcie->cmd_fifo = trans_cfg->cmd_fifo;
+	trans_pcie->cmd_q_wdg_timeout = trans_cfg->cmd_q_wdg_timeout;
 	if (WARN_ON(trans_cfg->n_no_reclaim_cmds > MAX_NO_RECLAIM_CMDS))
 		trans_pcie->n_no_reclaim_cmds = 0;
 	else
@@ -1283,9 +1284,6 @@ static void iwl_trans_pcie_configure(struct iwl_trans *trans,
 	else
 		trans_pcie->rx_page_order = get_order(4 * 1024);
 
-	trans_pcie->wd_timeout =
-		msecs_to_jiffies(trans_cfg->queue_watchdog_timeout);
-
 	trans_pcie->command_names = trans_cfg->command_names;
 	trans_pcie->bc_table_dword = trans_cfg->bc_table_dword;
 	trans_pcie->scd_set_active = trans_cfg->scd_set_active;
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index bb9dd3ecbcf5..af0bce736358 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -163,7 +163,7 @@ static void iwl_pcie_txq_stuck_timer(unsigned long data)
 	spin_unlock(&txq->lock);
 
 	IWL_ERR(trans, "Queue %d stuck for %u ms.\n", txq->q.id,
-		jiffies_to_msecs(trans_pcie->wd_timeout));
+		jiffies_to_msecs(txq->wd_timeout));
 	IWL_ERR(trans, "Current SW read_ptr %d write_ptr %d\n",
 		txq->q.read_ptr, txq->q.write_ptr);
 
@@ -674,7 +674,8 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr)
 		iwl_write_prph(trans, SCD_CHAINEXT_EN, 0);
 
 	iwl_trans_ac_txq_enable(trans, trans_pcie->cmd_queue,
-				trans_pcie->cmd_fifo);
+				trans_pcie->cmd_fifo,
+				trans_pcie->cmd_q_wdg_timeout);
 
 	/* Activate all Tx DMA/FIFO channels */
 	iwl_scd_activate_fifos(trans);
@@ -909,10 +910,9 @@ error:
 	return ret;
 }
 
-static inline void iwl_pcie_txq_progress(struct iwl_trans_pcie *trans_pcie,
-					   struct iwl_txq *txq)
+static inline void iwl_pcie_txq_progress(struct iwl_txq *txq)
 {
-	if (!trans_pcie->wd_timeout)
+	if (!txq->wd_timeout)
 		return;
 
 	/*
@@ -922,7 +922,7 @@ static inline void iwl_pcie_txq_progress(struct iwl_trans_pcie *trans_pcie,
 	if (txq->q.read_ptr == txq->q.write_ptr)
 		del_timer(&txq->stuck_timer);
 	else
-		mod_timer(&txq->stuck_timer, jiffies + trans_pcie->wd_timeout);
+		mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
 }
 
 /* Frees buffers until index _not_ inclusive */
@@ -984,7 +984,7 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 		iwl_pcie_txq_free_tfd(trans, txq);
 	}
 
-	iwl_pcie_txq_progress(trans_pcie, txq);
+	iwl_pcie_txq_progress(txq);
 
 	if (iwl_queue_space(&txq->q) > txq->q.low_mark)
 		iwl_wake_queue(trans, txq);
@@ -1112,7 +1112,7 @@ static void iwl_pcie_cmdq_reclaim(struct iwl_trans *trans, int txq_id, int idx)
 		spin_unlock_irqrestore(&trans_pcie->reg_lock, flags);
 	}
 
-	iwl_pcie_txq_progress(trans_pcie, txq);
+	iwl_pcie_txq_progress(txq);
 }
 
 static int iwl_pcie_txq_set_ratid_map(struct iwl_trans *trans, u16 ra_tid,
@@ -1145,14 +1145,18 @@ static int iwl_pcie_txq_set_ratid_map(struct iwl_trans *trans, u16 ra_tid,
 #define BUILD_RAxTID(sta_id, tid)	(((sta_id) << 4) + (tid))
 
 void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
-			       const struct iwl_trans_txq_scd_cfg *cfg)
+			       const struct iwl_trans_txq_scd_cfg *cfg,
+			       unsigned int wdg_timeout)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+	struct iwl_txq *txq = &trans_pcie->txq[txq_id];
 	int fifo = -1;
 
 	if (test_and_set_bit(txq_id, trans_pcie->queue_used))
 		WARN_ONCE(1, "queue %d already used - expect issues", txq_id);
 
+	txq->wd_timeout = msecs_to_jiffies(wdg_timeout);
+
 	if (cfg) {
 		fifo = cfg->fifo;
 
@@ -1176,7 +1180,7 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 
 			/* enable aggregations for the queue */
 			iwl_scd_txq_enable_agg(trans, txq_id);
-			trans_pcie->txq[txq_id].ampdu = true;
+			txq->ampdu = true;
 		} else {
 			/*
 			 * disable aggregations for the queue, this will also
@@ -1185,14 +1189,14 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 			 */
 			iwl_scd_txq_disable_agg(trans, txq_id);
 
-			ssn = trans_pcie->txq[txq_id].q.read_ptr;
+			ssn = txq->q.read_ptr;
 		}
 	}
 
 	/* Place first TFD at index corresponding to start sequence number.
 	 * Assumes that ssn_idx is valid (!= 0xFFF) */
-	trans_pcie->txq[txq_id].q.read_ptr = (ssn & 0xff);
-	trans_pcie->txq[txq_id].q.write_ptr = (ssn & 0xff);
+	txq->q.read_ptr = (ssn & 0xff);
+	txq->q.write_ptr = (ssn & 0xff);
 	iwl_write_direct32(trans, HBUS_TARG_WRPTR,
 			   (ssn & 0xff) | (txq_id << 8));
 
@@ -1233,7 +1237,7 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 				    txq_id, ssn & 0xff);
 	}
 
-	trans_pcie->txq[txq_id].active = true;
+	txq->active = true;
 }
 
 void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id,
@@ -1498,8 +1502,8 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans,
 	trace_iwlwifi_dev_hcmd(trans->dev, cmd, cmd_size, &out_cmd->hdr);
 
 	/* start timer if queue currently empty */
-	if (q->read_ptr == q->write_ptr && trans_pcie->wd_timeout)
-		mod_timer(&txq->stuck_timer, jiffies + trans_pcie->wd_timeout);
+	if (q->read_ptr == q->write_ptr && txq->wd_timeout)
+		mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
 
 	spin_lock_irqsave(&trans_pcie->reg_lock, flags);
 	ret = iwl_pcie_set_cmd_in_flight(trans, cmd);
@@ -1849,9 +1853,8 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
 
 	/* start timer if queue currently empty */
 	if (q->read_ptr == q->write_ptr) {
-		if (trans_pcie->wd_timeout)
-			mod_timer(&txq->stuck_timer,
-				  jiffies + trans_pcie->wd_timeout);
+		if (txq->wd_timeout)
+			mod_timer(&txq->stuck_timer, jiffies + txq->wd_timeout);
 		IWL_DEBUG_RPM(trans, "Q: %d first tx - take ref\n", q->id);
 		iwl_trans_pcie_ref(trans);
 	}
-- 
cgit v1.2.3


From 5a4b2afa77dea0e0ce6aa1c3f0dbf90dd9a681eb Mon Sep 17 00:00:00 2001
From: Haim Dreyfuss <haim.dreyfuss@intel.com>
Date: Tue, 13 Jan 2015 11:54:51 +0200
Subject: iwlwifi: mvm: Fix a few EBS error handling bugs

Last EBS status wasn't set to success in the initialization, which
caused the first scan to be without EBS. Fix that.

When EBS is not enabled by the driver, the FW still sends ebs_status success,
which can override EBS failure state. Consider only EBS failures, to avoid
such override. Last_ebs_success is set back to true upon disconnection.

Last_ebs_success wasn't set in umac scan abort flow, fix that too.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/ops.c  |  3 +++
 drivers/net/wireless/iwlwifi/mvm/scan.c | 13 ++++++++++---
 2 files changed, 13 insertions(+), 3 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index b6181efa9921..2dffc3600ed3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -568,6 +568,9 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	if (!mvm->scan_cmd)
 		goto out_free;
 
+	/* Set EBS as successful as long as not stated otherwise by the FW. */
+	mvm->last_ebs_successful = true;
+
 	err = iwl_mvm_mac_setup_register(mvm);
 	if (err)
 		goto out_free;
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 3bd5f34d3285..4169e3d7c109 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -704,7 +704,8 @@ int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm,
 		iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
 	}
 
-	mvm->last_ebs_successful = !ebs_status;
+	if (ebs_status)
+		mvm->last_ebs_successful = false;
 
 	return 0;
 }
@@ -2025,7 +2026,9 @@ int iwl_mvm_rx_umac_scan_complete_notif(struct iwl_mvm *mvm,
 		       notif->ebs_status == IWL_SCAN_EBS_SUCCESS ?
 				"success" : "failed");
 
-	mvm->last_ebs_successful = !notif->ebs_status;
+	if (notif->ebs_status)
+		mvm->last_ebs_successful = false;
+
 	mvm->scan_uid[uid_idx] = 0;
 
 	if (!sched) {
@@ -2058,10 +2061,14 @@ static bool iwl_scan_umac_done_check(struct iwl_notif_wait_data *notif_wait,
 
 	/*
 	 * Clear scan uid of scans that was aborted from above and completed
-	 * in FW so the RX handler does nothing.
+	 * in FW so the RX handler does nothing. Set last_ebs_successful here if
+	 * needed.
 	 */
 	scan_done->mvm->scan_uid[uid_idx] = 0;
 
+	if (notif->ebs_status)
+		scan_done->mvm->last_ebs_successful = false;
+
 	return !iwl_mvm_find_scan_type(scan_done->mvm, scan_done->type);
 }
 
-- 
cgit v1.2.3


From fd66fc1cafd72ddf27dbec3a5e29e99839d1bc84 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Tue, 27 Jan 2015 15:06:57 +0200
Subject: iwlwifi: mvm: fix failure path when power_update fails in
 add_interface

When iwl_mvm_power_update_mac() is called, we have already added the
mac context, so if this call fails we should remove the mac.

CC: <stable@vger.kernel.org> [3.15+]
Fixes: commit e5e7aa8e2561 ('iwlwifi: mvm: refactor power code')
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 51e02e6ba0ac..1ff7ec08532d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1355,7 +1355,7 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 
 	ret = iwl_mvm_power_update_mac(mvm);
 	if (ret)
-		goto out_release;
+		goto out_remove_mac;
 
 	/* beacon filtering */
 	ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
-- 
cgit v1.2.3


From 4db6558ccc4124d725d4c96eb55720bbbb597112 Mon Sep 17 00:00:00 2001
From: Haim Dreyfuss <haim.dreyfuss@intel.com>
Date: Mon, 5 Jan 2015 15:00:35 +0200
Subject: iwlwifi: mvm: Enable EBS also in single scan on umac interface

Enable EBS on one shot scans if supported by FW.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/scan.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 4169e3d7c109..8b74ce7b0e64 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -1863,6 +1863,13 @@ int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	flags |= IWL_UMAC_SCAN_GEN_FLAGS_PASS_ALL;
 
 	cmd->general_flags = cpu_to_le32(flags);
+
+	if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_SINGLE_SCAN_EBS &&
+	    mvm->last_ebs_successful)
+		cmd->channel_flags = IWL_SCAN_CHANNEL_FLAG_EBS |
+				     IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
+				     IWL_SCAN_CHANNEL_FLAG_CACHE_ADD;
+
 	cmd->n_channels = req->req.n_channels;
 
 	for (i = 0; i < req->req.n_ssids; i++)
-- 
cgit v1.2.3


From a25d40e27e542b8cd936ef1803e18304a6b2afb8 Mon Sep 17 00:00:00 2001
From: Ilan Peer <ilan.peer@intel.com>
Date: Fri, 23 Jan 2015 21:13:01 +0200
Subject: iwlwifi: mvm: Fix building channels in scan_config_cmd

Use the chanel hw_value and not the center frequency when
building channel array for scan_config_cmd.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/scan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 8b74ce7b0e64..7e9aa3cb3254 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -1683,10 +1683,10 @@ int iwl_mvm_config_scan(struct iwl_mvm *mvm)
 
 	band = &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
 	for (i = 0; i < band->n_channels; i++, j++)
-		scan_config->channel_array[j] = band->channels[i].center_freq;
+		scan_config->channel_array[j] = band->channels[i].hw_value;
 	band = &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
 	for (i = 0; i < band->n_channels; i++, j++)
-		scan_config->channel_array[j] = band->channels[i].center_freq;
+		scan_config->channel_array[j] = band->channels[i].hw_value;
 
 	cmd.data[0] = scan_config;
 	cmd.len[0] = cmd_size;
-- 
cgit v1.2.3


From c38740d015577dc0c28b03210050af338d35e1b7 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 2 Feb 2015 19:49:43 +0200
Subject: iwlwifi: mvm: don't send a command the firmware doesn't know

-9.ucode doesn't know the command SHARED_MEM_CFG yet.

Fixes: 04fd2c28226f ("iwlwifi: mvm: add rxf and txf to dump data")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index a322a5e3d31b..ca38e9817374 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -575,7 +575,8 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 		goto error;
 	}
 
-	iwl_mvm_get_shared_mem_conf(mvm);
+	if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10)
+		iwl_mvm_get_shared_mem_conf(mvm);
 
 	ret = iwl_mvm_sf_update(mvm, NULL, false);
 	if (ret)
-- 
cgit v1.2.3


From b9a641d9cb768177a7c867e382a2fdb6023b06ad Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 2 Feb 2015 13:22:27 +0100
Subject: iwlwifi: mvm: reduce quota threshold

The quota threshold should be reduced to 4 to update the
firmware more frequently.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/constants.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/iwlwifi/mvm')

diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h
index d91c46b0f888..beba375489f1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/constants.h
+++ b/drivers/net/wireless/iwlwifi/mvm/constants.h
@@ -99,7 +99,7 @@
 #define IWL_MVM_BT_COEX_ANTENNA_COUPLING_THRS	30
 #define IWL_MVM_FW_MCAST_FILTER_PASS_ALL	0
 #define IWL_MVM_FW_BCAST_FILTER_PASS_ALL	0
-#define IWL_MVM_QUOTA_THRESHOLD			8
+#define IWL_MVM_QUOTA_THRESHOLD			4
 #define IWL_MVM_RS_RSSI_BASED_INIT_RATE         0
 #define IWL_MVM_RS_DISABLE_P2P_MIMO		0
 #define IWL_MVM_RS_NUM_TRY_BEFORE_ANT_TOGGLE    1
-- 
cgit v1.2.3