[PATCH 00/11] iwlwifi: updates intended for v5.8 2020-05-08

[PATCH 00/11] iwlwifi: updates intended for v5.8 2020-05-08

[Luca Coelho]

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

Hi,

Here's the sixth set of patches intended for v5.8.  It's the usual
development, new features, cleanups and bugfixes.

The changes are:

* Update range request API;
* Add ACPI DSM support;
* Support enabling 5.2GHz bands in Indonesia via ACPI;
* Bump FW API version to 56;
* TX queues refactoring started;
* Fix one memory leak;
* Some other small fixes and clean-ups;

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

Please review.

Cheers,
Luca.


Avraham Stern (1):
  iwlwifi: mvm: add support for range request version 10

Gil Adam (2):
  iwlwifi: acpi: support device specific method (DSM)
  iwlwifi: acpi: evaluate dsm to enable 5.2 bands in Indonesia

Haim Dreyfuss (2):
  iwlwifi: set NO_HE if the regulatory domain forbids it
  iwlwifi: pcie: don't count on the FW to set persistence mode

Johannes Berg (1):
  iwlwifi: pcie: gen3: indicate 8k/12k RB size to device

Luca Coelho (1):
  iwlwifi: bump FW API to 56 for AX devices

Mordechay Goodstein (3):
  iwlwifi: pcie: keep trans instead of trans_pcie in iwl_txq
  iwlwifi: move iwl_txq and substructures to a common trans header
  iwlwifi: move txq-specific from trans_pcie to common trans

Sharon (1):
  iwlwifi: mvm: fix aux station leak

 .../net/wireless/intel/iwlwifi/cfg/22000.c    |   2 +-
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c  |  99 ++++++++++++--
 drivers/net/wireless/intel/iwlwifi/fw/acpi.h  |  22 +++
 .../wireless/intel/iwlwifi/fw/api/location.h  |  14 +-
 .../wireless/intel/iwlwifi/fw/api/nvm-reg.h   |  34 ++++-
 .../intel/iwlwifi/iwl-context-info-gen3.h     |  12 +-
 .../wireless/intel/iwlwifi/iwl-nvm-parse.c    |   5 +
 .../net/wireless/intel/iwlwifi/iwl-trans.h    | 128 ++++++++++++++++++
 .../intel/iwlwifi/mvm/ftm-initiator.c         |  42 +++++-
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c   |  43 ++++++
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c |   5 +-
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c  |  18 ++-
 drivers/net/wireless/intel/iwlwifi/mvm/sta.h  |   6 +-
 .../intel/iwlwifi/pcie/ctxt-info-gen3.c       |  10 +-
 .../wireless/intel/iwlwifi/pcie/ctxt-info.c   |   6 +-
 .../wireless/intel/iwlwifi/pcie/internal.h    | 121 +----------------
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c  |   6 +-
 .../wireless/intel/iwlwifi/pcie/trans-gen2.c  |  11 +-
 .../net/wireless/intel/iwlwifi/pcie/trans.c   |  47 +++----
 .../net/wireless/intel/iwlwifi/pcie/tx-gen2.c |  70 +++++-----
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c  | 120 ++++++++--------
 21 files changed, 524 insertions(+), 297 deletions(-)

-- 
2.26.2

[PATCH 01/11] iwlwifi: set NO_HE if the regulatory domain forbids it

[Luca Coelho]

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

If the firmware's regulatory domain forbids HE operation, set it
in the cfg80211 regdomain.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index d91a8e8349e6..ee410417761d 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -240,6 +240,7 @@ enum iwl_nvm_channel_flags {
  * @REG_CAPA_40MHZ_FORBIDDEN: 11n channel with a width of 40Mhz is forbidden
  *	for this regulatory domain (valid only in 5Ghz).
  * @REG_CAPA_DC_HIGH_ENABLED: DC HIGH allowed.
+ * @REG_CAPA_11AX_DISABLED: 11ax is forbidden for this regulatory domain.
  */
 enum iwl_reg_capa_flags {
 	REG_CAPA_BF_CCD_LOW_BAND	= BIT(0),
@@ -250,6 +251,7 @@ enum iwl_reg_capa_flags {
 	REG_CAPA_MCS_9_ALLOWED		= BIT(5),
 	REG_CAPA_40MHZ_FORBIDDEN	= BIT(7),
 	REG_CAPA_DC_HIGH_ENABLED	= BIT(9),
+	REG_CAPA_11AX_DISABLED		= BIT(10),
 };
 
 static inline void iwl_nvm_print_channel_flags(struct device *dev, u32 level,
@@ -1115,6 +1117,9 @@ static u32 iwl_nvm_get_regdom_bw_flags(const u16 *nvm_chan,
 			flags |= NL80211_RRF_NO_160MHZ;
 	}
 
+	if (cap_flags & REG_CAPA_11AX_DISABLED)
+		flags |= NL80211_RRF_NO_HE;
+
 	return flags;
 }
 
-- 
2.26.2

Re: [PATCH 01/11] iwlwifi: set NO_HE if the regulatory domain forbids it

[Кирилл Луконин]

Does it mean that wireless-regdb is not needed anymore and any vendor
can configure wireless stack from it's proprietary firmware?


Best Regards,
Lukonin Kirill

Best Regards,
Lukonin Kirill


пт, 8 мая 2020 г. в 19:12, Luca Coelho <luca@coelho.fi>:
>
> From: Haim Dreyfuss <haim.dreyfuss@intel.com>
>
> If the firmware's regulatory domain forbids HE operation, set it
> in the cfg80211 regdomain.
>
> Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
> ---
>  drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
> index d91a8e8349e6..ee410417761d 100644
> --- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
> +++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
> @@ -240,6 +240,7 @@ enum iwl_nvm_channel_flags {
>   * @REG_CAPA_40MHZ_FORBIDDEN: 11n channel with a width of 40Mhz is forbidden
>   *     for this regulatory domain (valid only in 5Ghz).
>   * @REG_CAPA_DC_HIGH_ENABLED: DC HIGH allowed.
> + * @REG_CAPA_11AX_DISABLED: 11ax is forbidden for this regulatory domain.
>   */
>  enum iwl_reg_capa_flags {
>         REG_CAPA_BF_CCD_LOW_BAND        = BIT(0),
> @@ -250,6 +251,7 @@ enum iwl_reg_capa_flags {
>         REG_CAPA_MCS_9_ALLOWED          = BIT(5),
>         REG_CAPA_40MHZ_FORBIDDEN        = BIT(7),
>         REG_CAPA_DC_HIGH_ENABLED        = BIT(9),
> +       REG_CAPA_11AX_DISABLED          = BIT(10),
>  };
>
>  static inline void iwl_nvm_print_channel_flags(struct device *dev, u32 level,
> @@ -1115,6 +1117,9 @@ static u32 iwl_nvm_get_regdom_bw_flags(const u16 *nvm_chan,
>                         flags |= NL80211_RRF_NO_160MHZ;
>         }
>
> +       if (cap_flags & REG_CAPA_11AX_DISABLED)
> +               flags |= NL80211_RRF_NO_HE;
> +
>         return flags;
>  }
>
> --
> 2.26.2
>

Re: [PATCH 01/11] iwlwifi: set NO_HE if the regulatory domain forbids it

[Luca Coelho]

On Fri, 2020-05-08 at 21:41 +0500, Кирилл Луконин wrote:
> Does it mean that wireless-regdb is not needed anymore and any vendor
> can configure wireless stack from it's proprietary firmware?

This is not new.  This is part of the self-managed regulatory feature.

--
Cheers,
Luca.

Re: [PATCH 01/11] iwlwifi: set NO_HE if the regulatory domain forbids it

[Кирилл Луконин]

Channels ON/OFF logic is OK.
But I (and possibly not only me) bought a lot of ax200 cards.
And now they all will work in 802.11ac mode without any reason and
without any chance to avoid such behavior.
That's something new, I think.


Best Regards,
Lukonin Kirill

пт, 8 мая 2020 г. в 22:18, Luca Coelho <luca@coelho.fi>:
>
> On Fri, 2020-05-08 at 21:41 +0500, Кирилл Луконин wrote:
> > Does it mean that wireless-regdb is not needed anymore and any vendor
> > can configure wireless stack from it's proprietary firmware?
>
> This is not new.  This is part of the self-managed regulatory feature.
>
> --
> Cheers,
> Luca.
>

Re: [PATCH 01/11] iwlwifi: set NO_HE if the regulatory domain forbids it

[Luca Coelho]

On Sat, 2020-05-09 at 01:10 +0500, Кирилл Луконин wrote:
> Channels ON/OFF logic is OK.
> But I (and possibly not only me) bought a lot of ax200 cards.
> And now they all will work in 802.11ac mode without any reason and
> without any chance to avoid such behavior.
> That's something new, I think.

The reason is regulatory.  That may be new, but it's just part of
following regulations.

--
Cheers,
Luca.

Re: [PATCH 01/11] iwlwifi: set NO_HE if the regulatory domain forbids it

[Кирилл Луконин]

Yes, it's something new. Because currently there is no any country
where 802.11ax is forbidden.
May be this change is not so useful or useless at all.

Best Regards,
Lukonin Kirill

Best Regards,
Lukonin Kirill


сб, 9 мая 2020 г. в 02:13, Luca Coelho <luca@coelho.fi>:
>
> On Sat, 2020-05-09 at 01:10 +0500, Кирилл Луконин wrote:
> > Channels ON/OFF logic is OK.
> > But I (and possibly not only me) bought a lot of ax200 cards.
> > And now they all will work in 802.11ac mode without any reason and
> > without any chance to avoid such behavior.
> > That's something new, I think.
>
> The reason is regulatory.  That may be new, but it's just part of
> following regulations.
>
> --
> Cheers,
> Luca.
>

Re: [PATCH 01/11] iwlwifi: set NO_HE if the regulatory domain forbids it

[Кирилл Луконин]

Also. If I use two different wi-fi cards from two different vendors
(Intel & Qualcomm).
Does it mean that Intel ax200 wi-fi card will override Qualcomm HE restrictions?
Looks like It's not a good idea to modify system settings because of
Intel's restrictions.
Other vendors can allow HE operations instead of Intel.

Best Regards,
Lukonin Kirill

сб, 9 мая 2020 г. в 02:13, Luca Coelho <luca@coelho.fi>:
>
> On Sat, 2020-05-09 at 01:10 +0500, Кирилл Луконин wrote:
> > Channels ON/OFF logic is OK.
> > But I (and possibly not only me) bought a lot of ax200 cards.
> > And now they all will work in 802.11ac mode without any reason and
> > without any chance to avoid such behavior.
> > That's something new, I think.
>
> The reason is regulatory.  That may be new, but it's just part of
> following regulations.
>
> --
> Cheers,
> Luca.
>

[PATCH 02/11] iwlwifi: pcie: don't count on the FW to set persistence mode

[Luca Coelho]

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

Apparently the FW can't set the persistence in all flows. Don't count
on the FW setting it in AX210 devices or above either to avoid
potential resets on resume.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 8ccfc7cc7348..3bcbc2967c88 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -5,10 +5,9 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2007 - 2015 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2007 - 2015, 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -28,10 +27,9 @@
  *
  * BSD LICENSE
  *
- * Copyright(c) 2005 - 2015 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2007 - 2015, 2018 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1495,14 +1493,10 @@ static int iwl_trans_pcie_d3_suspend(struct iwl_trans *trans, bool test,
 	int ret;
 	struct iwl_trans_pcie *trans_pcie =  IWL_TRANS_GET_PCIE_TRANS(trans);
 
-	/*
-	 * Family IWL_DEVICE_FAMILY_AX210 and above persist mode is set by FW.
-	 */
-	if (!reset && trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210) {
+	if (!reset)
 		/* Enable persistence mode to avoid reset */
 		iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
 			    CSR_HW_IF_CONFIG_REG_PERSIST_MODE);
-	}
 
 	if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
 		iwl_write_umac_prph(trans, UREG_DOORBELL_TO_ISR6,
-- 
2.26.2

[PATCH 03/11] iwlwifi: pcie: keep trans instead of trans_pcie in iwl_txq

[Luca Coelho]

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

We used both the trans and the trans_pcie structures in
iwl_txq, so we can keep the trans structure instead.  This
helps with the refactoring of txq code out of pcie.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/internal.h | 4 ++--
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c       | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index b76c0396335a..3950f5784a15 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -332,7 +332,7 @@ struct iwl_pcie_first_tb_buf {
  * @entries: transmit entries (driver state)
  * @lock: queue lock
  * @stuck_timer: timer that fires if queue gets stuck
- * @trans_pcie: pointer back to transport (for timer)
+ * @trans: pointer back to transport (for timer)
  * @need_update: indicates need to update read/write index
  * @ampdu: true if this queue is an ampdu queue for an specific RA/TID
  * @wd_timeout: queue watchdog timeout (jiffies) - per queue
@@ -371,7 +371,7 @@ struct iwl_txq {
 	spinlock_t lock;
 	unsigned long frozen_expiry_remainder;
 	struct timer_list stuck_timer;
-	struct iwl_trans_pcie *trans_pcie;
+	struct iwl_trans *trans;
 	bool need_update;
 	bool frozen;
 	bool ampdu;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 9ff78bca460b..757cf4e9de33 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -183,8 +183,7 @@ void iwl_pcie_free_dma_ptr(struct iwl_trans *trans, struct iwl_dma_ptr *ptr)
 static void iwl_pcie_txq_stuck_timer(struct timer_list *t)
 {
 	struct iwl_txq *txq = from_timer(txq, t, stuck_timer);
-	struct iwl_trans_pcie *trans_pcie = txq->trans_pcie;
-	struct iwl_trans *trans = iwl_trans_pcie_get_trans(trans_pcie);
+	struct iwl_trans *trans = txq->trans;
 
 	spin_lock(&txq->lock);
 	/* check if triggered erroneously */
@@ -535,7 +534,7 @@ int iwl_pcie_txq_alloc(struct iwl_trans *trans, struct iwl_txq *txq,
 		tfd_sz = trans_pcie->tfd_size * slots_num;
 
 	timer_setup(&txq->stuck_timer, iwl_pcie_txq_stuck_timer, 0);
-	txq->trans_pcie = trans_pcie;
+	txq->trans = trans;
 
 	txq->n_window = slots_num;
 
@@ -2129,7 +2128,8 @@ static int iwl_fill_data_tbs_amsdu(struct iwl_trans *trans, struct sk_buff *skb,
 				   u16 tb1_len)
 {
 	struct iwl_tx_cmd *tx_cmd = (void *)dev_cmd->payload;
-	struct iwl_trans_pcie *trans_pcie = txq->trans_pcie;
+	struct iwl_trans_pcie *trans_pcie =
+		IWL_TRANS_GET_PCIE_TRANS(txq->trans);
 	struct ieee80211_hdr *hdr = (void *)skb->data;
 	unsigned int snap_ip_tcp_hdrlen, ip_hdrlen, total_len, hdr_room;
 	unsigned int mss = skb_shinfo(skb)->gso_size;
-- 
2.26.2

[PATCH 04/11] iwlwifi: acpi: support device specific method (DSM)

[Luca Coelho]

From: Gil Adam <gil.adam@intel.com>

ACPI Device Specific Method (DSM) allows standardized feature
configuration through the ACPI interface without the namespace
pollution of the usual mechanism (ACPI method for each feature).
Add generic function for evaluating DSM objects and function for
evaluating a DSM with no arguments and a single int return value.
also implement the required backport for UUID.

Signed-off-by: Gil Adam <gil.adam@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 99 +++++++++++++++++---
 drivers/net/wireless/intel/iwlwifi/fw/acpi.h | 22 +++++
 2 files changed, 110 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index e2184ba4d8b5..72280de4a02a 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -58,44 +58,121 @@
  *
  *****************************************************************************/
 
+#include <linux/uuid.h>
 #include "iwl-drv.h"
 #include "iwl-debug.h"
 #include "acpi.h"
 #include "fw/runtime.h"
 
-void *iwl_acpi_get_object(struct device *dev, acpi_string method)
+const static guid_t intel_wifi_guid = GUID_INIT(0xF21202BF, 0x8F78, 0x4DC6,
+						0xA5, 0xB3, 0x1F, 0x73,
+						0x8E, 0x28, 0x5A, 0xDE);
+
+static int iwl_acpi_get_handle(struct device *dev, acpi_string method,
+			       acpi_handle *ret_handle)
 {
 	acpi_handle root_handle;
-	acpi_handle handle;
-	struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL};
 	acpi_status status;
 
 	root_handle = ACPI_HANDLE(dev);
 	if (!root_handle) {
 		IWL_DEBUG_DEV_RADIO(dev,
-				    "Could not retrieve root port ACPI handle\n");
-		return ERR_PTR(-ENOENT);
+				    "ACPI: Could not retrieve root port handle\n");
+		return -ENOENT;
 	}
 
-	/* Get the method's handle */
-	status = acpi_get_handle(root_handle, method, &handle);
+	status = acpi_get_handle(root_handle, method, ret_handle);
 	if (ACPI_FAILURE(status)) {
-		IWL_DEBUG_DEV_RADIO(dev, "%s method not found\n", method);
-		return ERR_PTR(-ENOENT);
+		IWL_DEBUG_DEV_RADIO(dev,
+				    "ACPI: %s method not found\n", method);
+		return -ENOENT;
 	}
+	return 0;
+}
+
+void *iwl_acpi_get_object(struct device *dev, acpi_string method)
+{
+	struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL};
+	acpi_handle handle;
+	acpi_status status;
+	int ret;
+
+	ret = iwl_acpi_get_handle(dev, method, &handle);
+	if (ret)
+		return ERR_PTR(-ENOENT);
 
 	/* Call the method with no arguments */
 	status = acpi_evaluate_object(handle, NULL, NULL, &buf);
 	if (ACPI_FAILURE(status)) {
-		IWL_DEBUG_DEV_RADIO(dev, "%s invocation failed (0x%x)\n",
+		IWL_DEBUG_DEV_RADIO(dev,
+				    "ACPI: %s method invocation failed (status: 0x%x)\n",
 				    method, status);
 		return ERR_PTR(-ENOENT);
 	}
-
 	return buf.pointer;
 }
 IWL_EXPORT_SYMBOL(iwl_acpi_get_object);
 
+/**
+* Generic function for evaluating a method defined in the device specific
+* method (DSM) interface. The returned acpi object must be freed by calling
+* function.
+*/
+void *iwl_acpi_get_dsm_object(struct device *dev, int rev, int func,
+			      union acpi_object *args)
+{
+	union acpi_object *obj;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_wifi_guid, rev, func,
+				args);
+	if (!obj) {
+		IWL_DEBUG_DEV_RADIO(dev,
+				    "ACPI: DSM method invocation failed (rev: %d, func:%d)\n",
+				    rev, func);
+		return ERR_PTR(-ENOENT);
+	}
+	return obj;
+}
+
+/**
+ * Evaluate a DSM with no arguments and a single u8 return value (inside a
+ * buffer object), verify and return that value.
+ */
+int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func)
+{
+	union acpi_object *obj;
+	int ret;
+
+	obj = iwl_acpi_get_dsm_object(dev, rev, func, NULL);
+	if (IS_ERR(obj))
+		return -ENOENT;
+
+	if (obj->type != ACPI_TYPE_BUFFER) {
+		IWL_DEBUG_DEV_RADIO(dev,
+				    "ACPI: DSM method did not return a valid object, type=%d\n",
+				    obj->type);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (obj->buffer.length != sizeof(u8)) {
+		IWL_DEBUG_DEV_RADIO(dev,
+				    "ACPI: DSM method returned invalid buffer, length=%d\n",
+				    obj->buffer.length);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ret = obj->buffer.pointer[0];
+	IWL_DEBUG_DEV_RADIO(dev,
+			    "ACPI: DSM method evaluated: func=%d, ret=%d\n",
+			    func, ret);
+out:
+	ACPI_FREE(obj);
+	return ret;
+}
+IWL_EXPORT_SYMBOL(iwl_acpi_get_dsm_u8);
+
 union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev,
 					 union acpi_object *data,
 					 int data_size, int *tbl_rev)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
index 6a646dc524e1..ea27760bcae7 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
@@ -127,12 +127,23 @@ struct iwl_geo_profile {
 	u8 values[ACPI_GEO_TABLE_SIZE];
 };
 
+enum iwl_dsm_funcs_rev_0 {
+	DSM_FUNC_QUERY = 0,
+	DSM_FUNC_DISABLE_SRD = 1,
+	DSM_FUNC_ENABLE_INDONESIA_5G2 = 2,
+};
+
 #ifdef CONFIG_ACPI
 
 struct iwl_fw_runtime;
 
 void *iwl_acpi_get_object(struct device *dev, acpi_string method);
 
+void *iwl_acpi_get_dsm_object(struct device *dev, int rev, int func,
+			      union acpi_object *args);
+
+int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func);
+
 union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev,
 					 union acpi_object *data,
 					 int data_size, int *tbl_rev);
@@ -192,6 +203,17 @@ static inline void *iwl_acpi_get_object(struct device *dev, acpi_string method)
 	return ERR_PTR(-ENOENT);
 }
 
+static inline void *iwl_acpi_get_dsm_object(struct device *dev, int rev,
+					    int func, union acpi_object *args)
+{
+	return ERR_PTR(-ENOENT);
+}
+
+static inline int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func)
+{
+	return ERR_PTR(-ENOENT);
+}
+
 static inline union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev,
 						       union acpi_object *data,
 						       int data_size,
-- 
2.26.2

Re: [PATCH 04/11] iwlwifi: acpi: support device specific method (DSM)

[Kalle Valo]

Luca Coelho <luca@coelho.fi> writes:

> From: Gil Adam <gil.adam@intel.com>
>
> ACPI Device Specific Method (DSM) allows standardized feature
> configuration through the ACPI interface without the namespace
> pollution of the usual mechanism (ACPI method for each feature).
> Add generic function for evaluating DSM objects and function for
> evaluating a DSM with no arguments and a single int return value.
> also implement the required backport for UUID.
>
> Signed-off-by: Gil Adam <gil.adam@intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

[...]

> -void *iwl_acpi_get_object(struct device *dev, acpi_string method)
> +const static guid_t intel_wifi_guid = GUID_INIT(0xF21202BF, 0x8F78, 0x4DC6,

Isn't the standard style "static const"?

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

Re: [PATCH 04/11] iwlwifi: acpi: support device specific method (DSM)

[Luca Coelho]

On Mon, 2020-05-11 at 14:43 +0300, Kalle Valo wrote:
> Luca Coelho <luca@coelho.fi> writes:
> 
> > From: Gil Adam <gil.adam@intel.com>
> > 
> > ACPI Device Specific Method (DSM) allows standardized feature
> > configuration through the ACPI interface without the namespace
> > pollution of the usual mechanism (ACPI method for each feature).
> > Add generic function for evaluating DSM objects and function for
> > evaluating a DSM with no arguments and a single int return value.
> > also implement the required backport for UUID.
> > 
> > Signed-off-by: Gil Adam <gil.adam@intel.com>
> > Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
> 
> [...]
> 
> > -void *iwl_acpi_get_object(struct device *dev, acpi_string method)
> > +const static guid_t intel_wifi_guid = GUID_INIT(0xF21202BF, 0x8F78, 0x4DC6,
> 
> Isn't the standard style "static const"?

Yep, sorry, I'll fix it.

--
Luca.

[PATCH 05/11] iwlwifi: acpi: evaluate dsm to enable 5.2 bands in Indonesia

[Luca Coelho]

From: Gil Adam <gil.adam@intel.com>

Evaluate the appropriate DSM from ACPI to enable 5.15,5.35 GHz
bands in Indonesia. If enabled send LARI_CONFIG_CHANGE cmd to fw.

Signed-off-by: Gil Adam <gil.adam@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../wireless/intel/iwlwifi/fw/api/nvm-reg.h   | 34 ++++++++++++++-
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c   | 43 +++++++++++++++++++
 2 files changed, 75 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h b/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
index 2d230a7893c2..fd719c37428c 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
@@ -8,7 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(C) 2018 - 2019 Intel Corporation
+ * Copyright(C) 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(C) 2018 - 2019 Intel Corporation
+ * Copyright(C) 2018 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -74,6 +74,11 @@ enum iwl_regulatory_and_nvm_subcmd_ids {
 	 */
 	NVM_ACCESS_COMPLETE = 0x0,
 
+	/**
+	 * @LARI_CONFIG_CHANGE: &struct iwl_lari_config_change_cmd
+	 */
+	LARI_CONFIG_CHANGE = 0x1,
+
 	/**
 	 * @NVM_GET_INFO:
 	 * Command is &struct iwl_nvm_get_info,
@@ -446,4 +451,29 @@ struct iwl_tas_config_cmd {
 	__le32 black_list_size;
 	__le32 black_list_array[IWL_TAS_BLACK_LIST_MAX];
 } __packed; /* TAS_CONFIG_CMD_API_S_VER_2 */
+
+/**
+ * enum iwl_lari_configs - bit masks for the various LARI config operations
+ * @LARI_CONFIG_DISABLE_11AC_UKRAINE_MSK: disable 11ac in ukraine
+ * @LARI_CONFIG_CHANGE_ETSI_TO_PASSIVE_MSK: ETSI 5.8GHz SRD passive scan
+ * @LARI_CONFIG_CHANGE_ETSI_TO_DISABLED_MSK: ETSI 5.8GHz SRD disabled
+ * @LARI_CONFIG_ENABLE_5G2_IN_INDONESIA_MSK: enable 5.15/5.35GHz bands in
+ * 	Indonesia
+ */
+enum iwl_lari_config_masks {
+	LARI_CONFIG_DISABLE_11AC_UKRAINE_MSK		= BIT(0),
+	LARI_CONFIG_CHANGE_ETSI_TO_PASSIVE_MSK		= BIT(1),
+	LARI_CONFIG_CHANGE_ETSI_TO_DISABLED_MSK		= BIT(2),
+	LARI_CONFIG_ENABLE_5G2_IN_INDONESIA_MSK		= BIT(3),
+};
+
+/**
+ * struct iwl_lari_config_change_cmd - change LARI configuration
+ * @config_bitmap: bit map of the config commands. each bit will trigger a
+ * different predefined FW config operation
+ */
+struct iwl_lari_config_change_cmd {
+	__le32 config_bitmap;
+} __packed; /* LARI_CHANGE_CONF_CMD_S_VER_1 */
+
 #endif /* __iwl_fw_api_nvm_reg_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 5e8d3f8c3d86..99e599862359 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -988,6 +988,44 @@ static void iwl_mvm_tas_init(struct iwl_mvm *mvm)
 	if (ret < 0)
 		IWL_DEBUG_RADIO(mvm, "failed to send TAS_CONFIG (%d)\n", ret);
 }
+
+static int iwl_mvm_eval_dsm_indonesia_5g2(struct iwl_mvm *mvm)
+{
+	int ret = iwl_acpi_get_dsm_u8((&mvm->fwrt)->dev, 0,
+				      DSM_FUNC_ENABLE_INDONESIA_5G2);
+
+	IWL_DEBUG_RADIO(mvm,
+			"Evaluated DSM function ENABLE_INDONESIA_5G2, ret=%d\n",
+			ret);
+
+	return ret == 1 ? 1 : 0;
+}
+
+static void iwl_mvm_lari_cfg(struct iwl_mvm *mvm)
+{
+	int ret;
+	struct iwl_lari_config_change_cmd cmd = {};
+
+	if (iwl_mvm_eval_dsm_indonesia_5g2(mvm))
+		cmd.config_bitmap |=
+			cpu_to_le32(LARI_CONFIG_ENABLE_5G2_IN_INDONESIA_MSK);
+
+	/* apply more config masks here */
+
+	if (cmd.config_bitmap) {
+		IWL_DEBUG_RADIO(mvm,
+				"sending LARI_CONFIG_CHANGE, config_bitmap=0x%x\n",
+				le32_to_cpu(cmd.config_bitmap));
+		ret = iwl_mvm_send_cmd_pdu(mvm,
+					   WIDE_ID(REGULATORY_AND_NVM_GROUP,
+						   LARI_CONFIG_CHANGE),
+					   0, sizeof(cmd), &cmd);
+		if (ret < 0)
+			IWL_DEBUG_RADIO(mvm,
+					"Failed to send LARI_CONFIG_CHANGE (%d)\n",
+					ret);
+	}
+}
 #else /* CONFIG_ACPI */
 
 inline int iwl_mvm_sar_select_profile(struct iwl_mvm *mvm,
@@ -1019,6 +1057,10 @@ static int iwl_mvm_ppag_init(struct iwl_mvm *mvm)
 static void iwl_mvm_tas_init(struct iwl_mvm *mvm)
 {
 }
+
+static void iwl_mvm_lari_cfg(struct iwl_mvm *mvm)
+{
+}
 #endif /* CONFIG_ACPI */
 
 void iwl_mvm_send_recovery_cmd(struct iwl_mvm *mvm, u32 flags)
@@ -1293,6 +1335,7 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	if (ret)
 		goto error;
 
+	iwl_mvm_lari_cfg(mvm);
 	/*
 	 * RTNL is not taken during Ct-kill, but we don't need to scan/Tx
 	 * anyway, so don't init MCC.
-- 
2.26.2

Re: [PATCH 05/11] iwlwifi: acpi: evaluate dsm to enable 5.2 bands in Indonesia

[Kalle Valo]

Luca Coelho <luca@coelho.fi> writes:

> From: Gil Adam <gil.adam@intel.com>
>
> Evaluate the appropriate DSM from ACPI to enable 5.15,5.35 GHz
> bands in Indonesia. If enabled send LARI_CONFIG_CHANGE cmd to fw.
>
> Signed-off-by: Gil Adam <gil.adam@intel.com>
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

[...]

> +static int iwl_mvm_eval_dsm_indonesia_5g2(struct iwl_mvm *mvm)
> +{
> +	int ret = iwl_acpi_get_dsm_u8((&mvm->fwrt)->dev, 0,
> +				      DSM_FUNC_ENABLE_INDONESIA_5G2);
> +
> +	IWL_DEBUG_RADIO(mvm,
> +			"Evaluated DSM function ENABLE_INDONESIA_5G2, ret=%d\n",
> +			ret);
> +
> +	return ret == 1 ? 1 : 0;

Ugh. If it's _really_ important not to return anything bigger than 1
maybe "!!ret"? Or maybe even just change the function to return boolean?

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

Re: [PATCH 05/11] iwlwifi: acpi: evaluate dsm to enable 5.2 bands in Indonesia

[Luca Coelho]

On Mon, 2020-05-11 at 14:47 +0300, Kalle Valo wrote:
> Luca Coelho <luca@coelho.fi> writes:
> 
> > From: Gil Adam <gil.adam@intel.com>
> > 
> > Evaluate the appropriate DSM from ACPI to enable 5.15,5.35 GHz
> > bands in Indonesia. If enabled send LARI_CONFIG_CHANGE cmd to fw.
> > 
> > Signed-off-by: Gil Adam <gil.adam@intel.com>
> > Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
> 
> [...]
> 
> > +static int iwl_mvm_eval_dsm_indonesia_5g2(struct iwl_mvm *mvm)
> > +{
> > +	int ret = iwl_acpi_get_dsm_u8((&mvm->fwrt)->dev, 0,
> > +				      DSM_FUNC_ENABLE_INDONESIA_5G2);
> > +
> > +	IWL_DEBUG_RADIO(mvm,
> > +			"Evaluated DSM function ENABLE_INDONESIA_5G2, ret=%d\n",
> > +			ret);
> > +
> > +	return ret == 1 ? 1 : 0;
> 
> Ugh. If it's _really_ important not to return anything bigger than 1
> maybe "!!ret"? Or maybe even just change the function to return boolean?

Ugh, indeed.  Guess who was not paying attention? Sorry.

I'll fix it.

--
Luca.

Re: [PATCH 05/11] iwlwifi: acpi: evaluate dsm to enable 5.2 bands in Indonesia

[Luca Coelho]

On Mon, 2020-05-11 at 15:08 +0300, Luca Coelho wrote:
> On Mon, 2020-05-11 at 14:47 +0300, Kalle Valo wrote:
> > Luca Coelho <luca@coelho.fi> writes:
> > 
> > > From: Gil Adam <gil.adam@intel.com>
> > > 
> > > Evaluate the appropriate DSM from ACPI to enable 5.15,5.35 GHz
> > > bands in Indonesia. If enabled send LARI_CONFIG_CHANGE cmd to fw.
> > > 
> > > Signed-off-by: Gil Adam <gil.adam@intel.com>
> > > Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
> > 
> > [...]
> > 
> > > +static int iwl_mvm_eval_dsm_indonesia_5g2(struct iwl_mvm *mvm)
> > > +{
> > > +	int ret = iwl_acpi_get_dsm_u8((&mvm->fwrt)->dev, 0,
> > > +				      DSM_FUNC_ENABLE_INDONESIA_5G2);
> > > +
> > > +	IWL_DEBUG_RADIO(mvm,
> > > +			"Evaluated DSM function ENABLE_INDONESIA_5G2, ret=%d\n",
> > > +			ret);
> > > +
> > > +	return ret == 1 ? 1 : 0;
> > 
> > Ugh. If it's _really_ important not to return anything bigger than 1
> > maybe "!!ret"? Or maybe even just change the function to return boolean?
> 
> Ugh, indeed.  Guess who was not paying attention? Sorry.

Actually the idea was to turn errors (negative numbers) into 0.  But in
any case, a boolean would be better here.  This function was changed in
a later patch snf handles more values, though.

--
Luca.

[PATCH 06/11] iwlwifi: pcie: gen3: indicate 8k/12k RB size to device

[Luca Coelho]

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

Newer firmware versions will parse a few extra bits in the
context info to be able to determine whether we are using
bigger than 4k RBs, indicate 8k/12k to them if we actually
use those (e.g. for sniffer based on the module parameter).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../wireless/intel/iwlwifi/iwl-context-info-gen3.h   | 12 ++++++++++--
 .../net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c |  8 ++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h b/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h
index ebea99189ca9..9d7a04833cd0 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-context-info-gen3.h
@@ -5,7 +5,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018, 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -18,7 +18,7 @@
  *
  * BSD LICENSE
  *
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018, 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -93,6 +93,11 @@ enum iwl_prph_scratch_mtr_format {
  * @IWL_PRPH_SCRATCH_MTR_FORMAT: a mask for the size of the tfd.
  *	There are 4 optional values: 0: 16 bit, 1: 32 bit, 2: 64 bit,
  *	3: 256 bit.
+ * @IWL_PRPH_SCRATCH_RB_SIZE_EXT_MASK: RB size full information, ignored
+ *	by older firmware versions, so set IWL_PRPH_SCRATCH_RB_SIZE_4K
+ *	appropriately; use the below values for this.
+ * @IWL_PRPH_SCRATCH_RB_SIZE_EXT_8K: 8kB RB size
+ * @IWL_PRPH_SCRATCH_RB_SIZE_EXT_12K: 12kB RB size
  */
 enum iwl_prph_scratch_flags {
 	IWL_PRPH_SCRATCH_EARLY_DEBUG_EN		= BIT(4),
@@ -103,6 +108,9 @@ enum iwl_prph_scratch_flags {
 	IWL_PRPH_SCRATCH_RB_SIZE_4K		= BIT(16),
 	IWL_PRPH_SCRATCH_MTR_MODE		= BIT(17),
 	IWL_PRPH_SCRATCH_MTR_FORMAT		= BIT(18) | BIT(19),
+	IWL_PRPH_SCRATCH_RB_SIZE_EXT_MASK	= 0xf << 20,
+	IWL_PRPH_SCRATCH_RB_SIZE_EXT_8K		= 8 << 20,
+	IWL_PRPH_SCRATCH_RB_SIZE_EXT_12K	= 9 << 20,
 };
 
 /*
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
index b6a5921a63c3..dcd81ee1f773 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
@@ -138,9 +138,17 @@ int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
 	case IWL_AMSDU_2K:
 		break;
 	case IWL_AMSDU_4K:
+		control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_4K;
+		break;
 	case IWL_AMSDU_8K:
+		control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_4K;
+		/* if firmware supports the ext size, tell it */
+		control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_EXT_8K;
+		break;
 	case IWL_AMSDU_12K:
 		control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_4K;
+		/* if firmware supports the ext size, tell it */
+		control_flags |= IWL_PRPH_SCRATCH_RB_SIZE_EXT_12K;
 		break;
 	}
 
-- 
2.26.2

[PATCH 07/11] iwlwifi: move iwl_txq and substructures to a common trans header

[Luca Coelho]

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

The txq code is not directly related to the PCIe transport, so move the
structures it uses to the common iwl-trans.h header.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-trans.h    | 107 ++++++++++++++++++
 .../wireless/intel/iwlwifi/pcie/internal.h    | 107 ------------------
 2 files changed, 107 insertions(+), 107 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index bba527b339b5..57361b27351e 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -795,6 +795,113 @@ struct iwl_trans_debug {
 	u32 domains_bitmap;
 };
 
+struct iwl_dma_ptr {
+	dma_addr_t dma;
+	void *addr;
+	size_t size;
+};
+
+struct iwl_cmd_meta {
+	/* only for SYNC commands, iff the reply skb is wanted */
+	struct iwl_host_cmd *source;
+	u32 flags;
+	u32 tbs;
+};
+
+/*
+ * The FH will write back to the first TB only, so we need to copy some data
+ * into the buffer regardless of whether it should be mapped or not.
+ * This indicates how big the first TB must be to include the scratch buffer
+ * and the assigned PN.
+ * Since PN location is 8 bytes at offset 12, it's 20 now.
+ * If we make it bigger then allocations will be bigger and copy slower, so
+ * that's probably not useful.
+ */
+#define IWL_FIRST_TB_SIZE	20
+#define IWL_FIRST_TB_SIZE_ALIGN ALIGN(IWL_FIRST_TB_SIZE, 64)
+
+struct iwl_pcie_txq_entry {
+	void *cmd;
+	struct sk_buff *skb;
+	/* buffer to free after command completes */
+	const void *free_buf;
+	struct iwl_cmd_meta meta;
+};
+
+struct iwl_pcie_first_tb_buf {
+	u8 buf[IWL_FIRST_TB_SIZE_ALIGN];
+};
+
+/**
+ * struct iwl_txq - Tx Queue for DMA
+ * @q: generic Rx/Tx queue descriptor
+ * @tfds: transmit frame descriptors (DMA memory)
+ * @first_tb_bufs: start of command headers, including scratch buffers, for
+ *	the writeback -- this is DMA memory and an array holding one buffer
+ *	for each command on the queue
+ * @first_tb_dma: DMA address for the first_tb_bufs start
+ * @entries: transmit entries (driver state)
+ * @lock: queue lock
+ * @stuck_timer: timer that fires if queue gets stuck
+ * @trans: pointer back to transport (for timer)
+ * @need_update: indicates need to update read/write index
+ * @ampdu: true if this queue is an ampdu queue for an specific RA/TID
+ * @wd_timeout: queue watchdog timeout (jiffies) - per queue
+ * @frozen: tx stuck queue timer is frozen
+ * @frozen_expiry_remainder: remember how long until the timer fires
+ * @bc_tbl: byte count table of the queue (relevant only for gen2 transport)
+ * @write_ptr: 1-st empty entry (index) host_w
+ * @read_ptr: last used entry (index) host_r
+ * @dma_addr:  physical addr for BD's
+ * @n_window: safe queue window
+ * @id: queue id
+ * @low_mark: low watermark, resume queue if free space more than this
+ * @high_mark: high watermark, stop queue if free space less than this
+ *
+ * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
+ * descriptors) and required locking structures.
+ *
+ * Note the difference between TFD_QUEUE_SIZE_MAX and n_window: the hardware
+ * always assumes 256 descriptors, so TFD_QUEUE_SIZE_MAX is always 256 (unless
+ * there might be HW changes in the future). For the normal TX
+ * queues, n_window, which is the size of the software queue data
+ * is also 256; however, for the command queue, n_window is only
+ * 32 since we don't need so many commands pending. Since the HW
+ * still uses 256 BDs for DMA though, TFD_QUEUE_SIZE_MAX stays 256.
+ * This means that we end up with the following:
+ *  HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
+ *  SW entries:           | 0      | ... | 31          |
+ * where N is a number between 0 and 7. This means that the SW
+ * data is a window overlayed over the HW queue.
+ */
+struct iwl_txq {
+	void *tfds;
+	struct iwl_pcie_first_tb_buf *first_tb_bufs;
+	dma_addr_t first_tb_dma;
+	struct iwl_pcie_txq_entry *entries;
+	/* lock for syncing changes on the queue */
+	spinlock_t lock;
+	unsigned long frozen_expiry_remainder;
+	struct timer_list stuck_timer;
+	struct iwl_trans *trans;
+	bool need_update;
+	bool frozen;
+	bool ampdu;
+	int block;
+	unsigned long wd_timeout;
+	struct sk_buff_head overflow_q;
+	struct iwl_dma_ptr bc_tbl;
+
+	int write_ptr;
+	int read_ptr;
+	dma_addr_t dma_addr;
+	int n_window;
+	u32 id;
+	int low_mark;
+	int high_mark;
+
+	bool overflow_tx;
+};
 /**
  * struct iwl_trans - transport common data
  *
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index 3950f5784a15..3c6a119aede4 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -246,12 +246,6 @@ struct iwl_rb_allocator {
 	struct work_struct rx_alloc;
 };
 
-struct iwl_dma_ptr {
-	dma_addr_t dma;
-	void *addr;
-	size_t size;
-};
-
 /**
  * iwl_queue_inc_wrap - increment queue index, wrap back to beginning
  * @index -- current index
@@ -290,107 +284,6 @@ static inline int iwl_queue_dec_wrap(struct iwl_trans *trans, int index)
 		(trans->trans_cfg->base_params->max_tfd_queue_size - 1);
 }
 
-struct iwl_cmd_meta {
-	/* only for SYNC commands, iff the reply skb is wanted */
-	struct iwl_host_cmd *source;
-	u32 flags;
-	u32 tbs;
-};
-
-/*
- * The FH will write back to the first TB only, so we need to copy some data
- * into the buffer regardless of whether it should be mapped or not.
- * This indicates how big the first TB must be to include the scratch buffer
- * and the assigned PN.
- * Since PN location is 8 bytes at offset 12, it's 20 now.
- * If we make it bigger then allocations will be bigger and copy slower, so
- * that's probably not useful.
- */
-#define IWL_FIRST_TB_SIZE	20
-#define IWL_FIRST_TB_SIZE_ALIGN ALIGN(IWL_FIRST_TB_SIZE, 64)
-
-struct iwl_pcie_txq_entry {
-	void *cmd;
-	struct sk_buff *skb;
-	/* buffer to free after command completes */
-	const void *free_buf;
-	struct iwl_cmd_meta meta;
-};
-
-struct iwl_pcie_first_tb_buf {
-	u8 buf[IWL_FIRST_TB_SIZE_ALIGN];
-};
-
-/**
- * struct iwl_txq - Tx Queue for DMA
- * @q: generic Rx/Tx queue descriptor
- * @tfds: transmit frame descriptors (DMA memory)
- * @first_tb_bufs: start of command headers, including scratch buffers, for
- *	the writeback -- this is DMA memory and an array holding one buffer
- *	for each command on the queue
- * @first_tb_dma: DMA address for the first_tb_bufs start
- * @entries: transmit entries (driver state)
- * @lock: queue lock
- * @stuck_timer: timer that fires if queue gets stuck
- * @trans: pointer back to transport (for timer)
- * @need_update: indicates need to update read/write index
- * @ampdu: true if this queue is an ampdu queue for an specific RA/TID
- * @wd_timeout: queue watchdog timeout (jiffies) - per queue
- * @frozen: tx stuck queue timer is frozen
- * @frozen_expiry_remainder: remember how long until the timer fires
- * @bc_tbl: byte count table of the queue (relevant only for gen2 transport)
- * @write_ptr: 1-st empty entry (index) host_w
- * @read_ptr: last used entry (index) host_r
- * @dma_addr:  physical addr for BD's
- * @n_window: safe queue window
- * @id: queue id
- * @low_mark: low watermark, resume queue if free space more than this
- * @high_mark: high watermark, stop queue if free space less than this
- *
- * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
- * descriptors) and required locking structures.
- *
- * Note the difference between TFD_QUEUE_SIZE_MAX and n_window: the hardware
- * always assumes 256 descriptors, so TFD_QUEUE_SIZE_MAX is always 256 (unless
- * there might be HW changes in the future). For the normal TX
- * queues, n_window, which is the size of the software queue data
- * is also 256; however, for the command queue, n_window is only
- * 32 since we don't need so many commands pending. Since the HW
- * still uses 256 BDs for DMA though, TFD_QUEUE_SIZE_MAX stays 256.
- * This means that we end up with the following:
- *  HW entries: | 0 | ... | N * 32 | ... | N * 32 + 31 | ... | 255 |
- *  SW entries:           | 0      | ... | 31          |
- * where N is a number between 0 and 7. This means that the SW
- * data is a window overlayed over the HW queue.
- */
-struct iwl_txq {
-	void *tfds;
-	struct iwl_pcie_first_tb_buf *first_tb_bufs;
-	dma_addr_t first_tb_dma;
-	struct iwl_pcie_txq_entry *entries;
-	spinlock_t lock;
-	unsigned long frozen_expiry_remainder;
-	struct timer_list stuck_timer;
-	struct iwl_trans *trans;
-	bool need_update;
-	bool frozen;
-	bool ampdu;
-	int block;
-	unsigned long wd_timeout;
-	struct sk_buff_head overflow_q;
-	struct iwl_dma_ptr bc_tbl;
-
-	int write_ptr;
-	int read_ptr;
-	dma_addr_t dma_addr;
-	int n_window;
-	u32 id;
-	int low_mark;
-	int high_mark;
-
-	bool overflow_tx;
-};
-
 static inline dma_addr_t
 iwl_pcie_get_first_tb_dma(struct iwl_txq *txq, int idx)
 {
-- 
2.26.2

[PATCH 08/11] iwlwifi: move txq-specific from trans_pcie to common trans

[Luca Coelho]

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

We don't want to have txq code in the PCIe transport code, so move all
the relevant elements to a new iwl_txq structure and store it in
iwl_trans.

spatch

@ replace_pcie @
struct iwl_trans_pcie *trans_pcie;
@@

(
-trans_pcie->queue_stopped
+trans->txqs.queue_stopped
|
-trans_pcie->queue_used
+trans->txqs.queue_used
|
-trans_pcie->txq
+trans->txqs.txq
|
-trans_pcie->txq
+trans->txqs.txq
|
-trans_pcie->cmd_queue
+trans->txqs.cmd.q_id
|
-trans_pcie->cmd_fifo
+trans->txqs.cmd.fifo
|
-trans_pcie->cmd_q_wdg_timeout
+trans->txqs.cmd.wdg_timeout
)

// clean all new unused variables
@ depends on replace_pcie @
type T;
identifier i;
expression E;
@@
- T i = E;
 ... when != i

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/iwl-trans.h    |  21 ++++
 .../intel/iwlwifi/pcie/ctxt-info-gen3.c       |   2 +-
 .../wireless/intel/iwlwifi/pcie/ctxt-info.c   |   6 +-
 .../wireless/intel/iwlwifi/pcie/internal.h    |  14 +--
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c  |   6 +-
 .../wireless/intel/iwlwifi/pcie/trans-gen2.c  |  11 +-
 .../net/wireless/intel/iwlwifi/pcie/trans.c   |  35 +++---
 .../net/wireless/intel/iwlwifi/pcie/tx-gen2.c |  70 +++++------
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c  | 112 +++++++++---------
 9 files changed, 138 insertions(+), 139 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 57361b27351e..a301e2484cdb 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -902,6 +902,25 @@ struct iwl_txq {
 
 	bool overflow_tx;
 };
+
+/**
+ * struct iwl_trans_txqs - transport tx queues data
+ *
+ * @queue_used - bit mask of used queues
+ * @queue_stopped - bit mask of stopped queues
+ */
+struct iwl_trans_txqs {
+	unsigned long queue_used[BITS_TO_LONGS(IWL_MAX_TVQM_QUEUES)];
+	unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_TVQM_QUEUES)];
+	struct iwl_txq *txq[IWL_MAX_TVQM_QUEUES];
+	struct {
+		u8 fifo;
+		u8 q_id;
+		unsigned int wdg_timeout;
+	} cmd;
+
+};
+
 /**
  * struct iwl_trans - transport common data
  *
@@ -935,6 +954,7 @@ struct iwl_txq {
  * @system_pm_mode: the system-wide power management mode in use.
  *	This mode is set dynamically, depending on the WoWLAN values
  *	configured from the userspace at runtime.
+ * @iwl_trans_txqs: transport tx queues data.
  */
 struct iwl_trans {
 	const struct iwl_trans_ops *ops;
@@ -982,6 +1002,7 @@ struct iwl_trans {
 	enum iwl_plat_pm_mode system_pm_mode;
 
 	const char *name;
+	struct iwl_trans_txqs txqs;
 
 	/* pointer to trans specific struct */
 	/*Ensure that this pointer will always be aligned to sizeof pointer */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
index dcd81ee1f773..1ab136600415 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c
@@ -221,7 +221,7 @@ int iwl_pcie_ctxt_info_gen3_init(struct iwl_trans *trans,
 	ctxt_info_gen3->tr_idx_arr_size =
 		cpu_to_le16(IWL_NUM_OF_TRANSFER_RINGS);
 	ctxt_info_gen3->mtr_base_addr =
-		cpu_to_le64(trans_pcie->txq[trans_pcie->cmd_queue]->dma_addr);
+		cpu_to_le64(trans->txqs.txq[trans->txqs.cmd.q_id]->dma_addr);
 	ctxt_info_gen3->mcr_base_addr =
 		cpu_to_le64(trans_pcie->rxq->used_bd_dma);
 	ctxt_info_gen3->mtr_size =
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c
index b65405009d02..23abfbd096b0 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.c
@@ -6,7 +6,7 @@
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -20,7 +20,7 @@
  * BSD LICENSE
  *
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -263,7 +263,7 @@ int iwl_pcie_ctxt_info_init(struct iwl_trans *trans,
 
 	/* initialize TX command queue */
 	ctxt_info->hcmd_cfg.cmd_queue_addr =
-		cpu_to_le64(trans_pcie->txq[trans_pcie->cmd_queue]->dma_addr);
+		cpu_to_le64(trans->txqs.txq[trans->txqs.cmd.q_id]->dma_addr);
 	ctxt_info->hcmd_cfg.cmd_queue_size =
 		TFD_QUEUE_CB_SIZE(IWL_CMD_QUEUE_SIZE);
 
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
index 3c6a119aede4..55808ba10d27 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/internal.h
@@ -454,9 +454,6 @@ struct iwl_trans_pcie {
 	struct dma_pool *bc_pool;
 
 	struct iwl_txq *txq_memory;
-	struct iwl_txq *txq[IWL_MAX_TVQM_QUEUES];
-	unsigned long queue_used[BITS_TO_LONGS(IWL_MAX_TVQM_QUEUES)];
-	unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_TVQM_QUEUES)];
 
 	/* PCI bus related data */
 	struct pci_dev *pci_dev;
@@ -470,10 +467,7 @@ struct iwl_trans_pcie {
 
 	u8 page_offs, dev_cmd_offs;
 
-	u8 cmd_queue;
 	u8 def_rx_queue;
-	u8 cmd_fifo;
-	unsigned int cmd_q_wdg_timeout;
 	u8 n_no_reclaim_cmds;
 	u8 no_reclaim_cmds[MAX_NO_RECLAIM_CMDS];
 	u8 max_tbs;
@@ -876,9 +870,7 @@ void iwl_pcie_handle_rfkill_irq(struct iwl_trans *trans);
 static inline void iwl_wake_queue(struct iwl_trans *trans,
 				  struct iwl_txq *txq)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
-	if (test_and_clear_bit(txq->id, trans_pcie->queue_stopped)) {
+	if (test_and_clear_bit(txq->id, trans->txqs.queue_stopped)) {
 		IWL_DEBUG_TX_QUEUES(trans, "Wake hwq %d\n", txq->id);
 		iwl_op_mode_queue_not_full(trans->op_mode, txq->id);
 	}
@@ -887,9 +879,7 @@ static inline void iwl_wake_queue(struct iwl_trans *trans,
 static inline void iwl_stop_queue(struct iwl_trans *trans,
 				  struct iwl_txq *txq)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
-	if (!test_and_set_bit(txq->id, trans_pcie->queue_stopped)) {
+	if (!test_and_set_bit(txq->id, trans->txqs.queue_stopped)) {
 		iwl_op_mode_queue_full(trans->op_mode, txq->id);
 		IWL_DEBUG_TX_QUEUES(trans, "Stop hwq %d\n", txq->id);
 	} else
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index 72d1cf27e6a4..24cb1b1f21f0 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -1284,7 +1284,7 @@ static void iwl_pcie_rx_handle_rb(struct iwl_trans *trans,
 				int i)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[trans_pcie->cmd_queue];
+	struct iwl_txq *txq = trans->txqs.txq[trans->txqs.cmd.q_id];
 	bool page_stolen = false;
 	int max_len = trans_pcie->rx_buf_bytes;
 	u32 offset = 0;
@@ -1671,9 +1671,9 @@ static void iwl_pcie_irq_handle_error(struct iwl_trans *trans)
 	}
 
 	for (i = 0; i < trans->trans_cfg->base_params->num_of_queues; i++) {
-		if (!trans_pcie->txq[i])
+		if (!trans->txqs.txq[i])
 			continue;
-		del_timer(&trans_pcie->txq[i]->stuck_timer);
+		del_timer(&trans->txqs.txq[i]->stuck_timer);
 	}
 
 	/* The STATUS_FW_ERROR bit is set in this function. This must happen
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
index 19a2c72081ab..97c9e9c87436 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans-gen2.c
@@ -6,7 +6,7 @@
  * GPL LICENSE SUMMARY
  *
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -20,7 +20,7 @@
  * BSD LICENSE
  *
  * Copyright(c) 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -245,7 +245,7 @@ static int iwl_pcie_gen2_nic_init(struct iwl_trans *trans)
 		return -ENOMEM;
 
 	/* Allocate or reset and init all Tx and Command queues */
-	if (iwl_pcie_gen2_tx_init(trans, trans_pcie->cmd_queue, queue_size))
+	if (iwl_pcie_gen2_tx_init(trans, trans->txqs.cmd.q_id, queue_size))
 		return -ENOMEM;
 
 	/* enable shadow regs in HW */
@@ -262,8 +262,9 @@ void iwl_trans_pcie_gen2_fw_alive(struct iwl_trans *trans, u32 scd_addr)
 	iwl_pcie_reset_ict(trans);
 
 	/* make sure all queue are not stopped/used */
-	memset(trans_pcie->queue_stopped, 0, sizeof(trans_pcie->queue_stopped));
-	memset(trans_pcie->queue_used, 0, sizeof(trans_pcie->queue_used));
+	memset(trans->txqs.queue_stopped, 0,
+	       sizeof(trans->txqs.queue_stopped));
+	memset(trans->txqs.queue_used, 0, sizeof(trans->txqs.queue_used));
 
 	/* now that we got alive we can free the fw image & the context info.
 	 * paging memory cannot be freed included since FW will still use it
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 3bcbc2967c88..e5160d620868 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -1904,9 +1904,9 @@ static void iwl_trans_pcie_configure(struct iwl_trans *trans,
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_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;
+	trans->txqs.cmd.q_id = trans_cfg->cmd_queue;
+	trans->txqs.cmd.fifo = trans_cfg->cmd_fifo;
+	trans->txqs.cmd.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
@@ -2199,11 +2199,10 @@ static void iwl_trans_pcie_freeze_txq_timer(struct iwl_trans *trans,
 					    unsigned long txqs,
 					    bool freeze)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int queue;
 
 	for_each_set_bit(queue, &txqs, BITS_PER_LONG) {
-		struct iwl_txq *txq = trans_pcie->txq[queue];
+		struct iwl_txq *txq = trans->txqs.txq[queue];
 		unsigned long now;
 
 		spin_lock_bh(&txq->lock);
@@ -2251,13 +2250,12 @@ static void iwl_trans_pcie_freeze_txq_timer(struct iwl_trans *trans,
 
 static void iwl_trans_pcie_block_txq_ptrs(struct iwl_trans *trans, bool block)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int i;
 
 	for (i = 0; i < trans->trans_cfg->base_params->num_of_queues; i++) {
-		struct iwl_txq *txq = trans_pcie->txq[i];
+		struct iwl_txq *txq = trans->txqs.txq[i];
 
-		if (i == trans_pcie->cmd_queue)
+		if (i == trans->txqs.cmd.q_id)
 			continue;
 
 		spin_lock_bh(&txq->lock);
@@ -2326,7 +2324,6 @@ static int iwl_trans_pcie_rxq_dma_data(struct iwl_trans *trans, int queue,
 
 static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans, int txq_idx)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_txq *txq;
 	unsigned long now = jiffies;
 	bool overflow_tx;
@@ -2336,11 +2333,11 @@ static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans, int txq_idx)
 	if (test_bit(STATUS_TRANS_DEAD, &trans->status))
 		return -ENODEV;
 
-	if (!test_bit(txq_idx, trans_pcie->queue_used))
+	if (!test_bit(txq_idx, trans->txqs.queue_used))
 		return -EINVAL;
 
 	IWL_DEBUG_TX_QUEUES(trans, "Emptying queue %d...\n", txq_idx);
-	txq = trans_pcie->txq[txq_idx];
+	txq = trans->txqs.txq[txq_idx];
 
 	spin_lock_bh(&txq->lock);
 	overflow_tx = txq->overflow_tx ||
@@ -2388,7 +2385,6 @@ static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans, int txq_idx)
 
 static int iwl_trans_pcie_wait_txqs_empty(struct iwl_trans *trans, u32 txq_bm)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int cnt;
 	int ret = 0;
 
@@ -2397,9 +2393,9 @@ static int iwl_trans_pcie_wait_txqs_empty(struct iwl_trans *trans, u32 txq_bm)
 	     cnt < trans->trans_cfg->base_params->num_of_queues;
 	     cnt++) {
 
-		if (cnt == trans_pcie->cmd_queue)
+		if (cnt == trans->txqs.cmd.q_id)
 			continue;
-		if (!test_bit(cnt, trans_pcie->queue_used))
+		if (!test_bit(cnt, trans->txqs.queue_used))
 			continue;
 		if (!(BIT(cnt) & txq_bm))
 			continue;
@@ -2573,13 +2569,12 @@ static int iwl_dbgfs_tx_queue_seq_show(struct seq_file *seq, void *v)
 	struct iwl_dbgfs_tx_queue_priv *priv = seq->private;
 	struct iwl_dbgfs_tx_queue_state *state = v;
 	struct iwl_trans *trans = priv->trans;
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[state->pos];
+	struct iwl_txq *txq = trans->txqs.txq[state->pos];
 
 	seq_printf(seq, "hwq %.3u: used=%d stopped=%d ",
 		   (unsigned int)state->pos,
-		   !!test_bit(state->pos, trans_pcie->queue_used),
-		   !!test_bit(state->pos, trans_pcie->queue_stopped));
+		   !!test_bit(state->pos, trans->txqs.queue_used),
+		   !!test_bit(state->pos, trans->txqs.queue_stopped));
 	if (txq)
 		seq_printf(seq,
 			   "read=%u write=%u need_update=%d frozen=%d n_window=%d ampdu=%d",
@@ -2589,7 +2584,7 @@ static int iwl_dbgfs_tx_queue_seq_show(struct seq_file *seq, void *v)
 	else
 		seq_puts(seq, "(unallocated)");
 
-	if (state->pos == trans_pcie->cmd_queue)
+	if (state->pos == trans->txqs.cmd.q_id)
 		seq_puts(seq, " (HCMD)");
 	seq_puts(seq, "\n");
 
@@ -3265,7 +3260,7 @@ static struct iwl_trans_dump_data
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_fw_error_dump_data *data;
-	struct iwl_txq *cmdq = trans_pcie->txq[trans_pcie->cmd_queue];
+	struct iwl_txq *cmdq = trans->txqs.txq[trans->txqs.cmd.q_id];
 	struct iwl_fw_error_dump_txcmd *txcmd;
 	struct iwl_trans_dump_data *dump_data;
 	u32 len, num_rbs = 0, monitor_len = 0;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
index bb55563bba68..7fc7542535d8 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
@@ -64,7 +64,6 @@
  */
 void iwl_pcie_gen2_tx_stop(struct iwl_trans *trans)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int txq_id;
 
 	/*
@@ -72,12 +71,13 @@ void iwl_pcie_gen2_tx_stop(struct iwl_trans *trans)
 	 * queues. This happens when we have an rfkill interrupt.
 	 * Since we stop Tx altogether - mark the queues as stopped.
 	 */
-	memset(trans_pcie->queue_stopped, 0, sizeof(trans_pcie->queue_stopped));
-	memset(trans_pcie->queue_used, 0, sizeof(trans_pcie->queue_used));
+	memset(trans->txqs.queue_stopped, 0,
+	       sizeof(trans->txqs.queue_stopped));
+	memset(trans->txqs.queue_used, 0, sizeof(trans->txqs.queue_used));
 
 	/* Unmap DMA from host system and free skb's */
-	for (txq_id = 0; txq_id < ARRAY_SIZE(trans_pcie->txq); txq_id++) {
-		if (!trans_pcie->txq[txq_id])
+	for (txq_id = 0; txq_id < ARRAY_SIZE(trans->txqs.txq); txq_id++) {
+		if (!trans->txqs.txq[txq_id])
 			continue;
 		iwl_pcie_gen2_txq_unmap(trans, txq_id);
 	}
@@ -716,7 +716,7 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_cmd_meta *out_meta;
-	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 	u16 cmd_len;
 	int idx;
 	void *tfd;
@@ -725,7 +725,7 @@ int iwl_trans_pcie_gen2_tx(struct iwl_trans *trans, struct sk_buff *skb,
 		      "queue %d out of range", txq_id))
 		return -EINVAL;
 
-	if (WARN_ONCE(!test_bit(txq_id, trans_pcie->queue_used),
+	if (WARN_ONCE(!test_bit(txq_id, trans->txqs.queue_used),
 		      "TX on unused queue %d\n", txq_id))
 		return -EINVAL;
 
@@ -819,7 +819,7 @@ static int iwl_pcie_gen2_enqueue_hcmd(struct iwl_trans *trans,
 				      struct iwl_host_cmd *cmd)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[trans_pcie->cmd_queue];
+	struct iwl_txq *txq = trans->txqs.txq[trans->txqs.cmd.q_id];
 	struct iwl_device_cmd *out_cmd;
 	struct iwl_cmd_meta *out_meta;
 	unsigned long flags;
@@ -931,7 +931,7 @@ static int iwl_pcie_gen2_enqueue_hcmd(struct iwl_trans *trans,
 		cpu_to_le16(cmd_size - sizeof(struct iwl_cmd_header_wide));
 	out_cmd->hdr_wide.reserved = 0;
 	out_cmd->hdr_wide.sequence =
-		cpu_to_le16(QUEUE_TO_SEQ(trans_pcie->cmd_queue) |
+		cpu_to_le16(QUEUE_TO_SEQ(trans->txqs.cmd.q_id) |
 					 INDEX_TO_SEQ(txq->write_ptr));
 
 	cmd_pos = sizeof(struct iwl_cmd_header_wide);
@@ -979,7 +979,7 @@ static int iwl_pcie_gen2_enqueue_hcmd(struct iwl_trans *trans,
 		     "Sending command %s (%.2x.%.2x), seq: 0x%04X, %d bytes at %d[%d]:%d\n",
 		     iwl_get_cmd_string(trans, cmd->id), group_id,
 		     out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
-		     cmd_size, txq->write_ptr, idx, trans_pcie->cmd_queue);
+		     cmd_size, txq->write_ptr, idx, trans->txqs.cmd.q_id);
 
 	/* start the TFD with the minimum copy bytes */
 	tb0_size = min_t(int, copy_size, IWL_FIRST_TB_SIZE);
@@ -1056,7 +1056,7 @@ static int iwl_pcie_gen2_send_hcmd_sync(struct iwl_trans *trans,
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	const char *cmd_str = iwl_get_cmd_string(trans, cmd->id);
-	struct iwl_txq *txq = trans_pcie->txq[trans_pcie->cmd_queue];
+	struct iwl_txq *txq = trans->txqs.txq[trans->txqs.cmd.q_id];
 	int cmd_idx;
 	int ret;
 
@@ -1175,14 +1175,14 @@ int iwl_trans_pcie_gen2_send_hcmd(struct iwl_trans *trans,
 void iwl_pcie_gen2_txq_unmap(struct iwl_trans *trans, int txq_id)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 
 	spin_lock_bh(&txq->lock);
 	while (txq->write_ptr != txq->read_ptr) {
 		IWL_DEBUG_TX_REPLY(trans, "Q %d Free %d\n",
 				   txq_id, txq->read_ptr);
 
-		if (txq_id != trans_pcie->cmd_queue) {
+		if (txq_id != trans->txqs.cmd.q_id) {
 			int idx = iwl_pcie_get_cmd_index(txq, txq->read_ptr);
 			struct sk_buff *skb = txq->entries[idx].skb;
 
@@ -1240,7 +1240,6 @@ void iwl_pcie_gen2_txq_free_memory(struct iwl_trans *trans,
  */
 static void iwl_pcie_gen2_txq_free(struct iwl_trans *trans, int txq_id)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_txq *txq;
 	int i;
 
@@ -1248,7 +1247,7 @@ static void iwl_pcie_gen2_txq_free(struct iwl_trans *trans, int txq_id)
 		      "queue %d out of range", txq_id))
 		return;
 
-	txq = trans_pcie->txq[txq_id];
+	txq = trans->txqs.txq[txq_id];
 
 	if (WARN_ON(!txq))
 		return;
@@ -1256,7 +1255,7 @@ static void iwl_pcie_gen2_txq_free(struct iwl_trans *trans, int txq_id)
 	iwl_pcie_gen2_txq_unmap(trans, txq_id);
 
 	/* De-alloc array of command/tx buffers */
-	if (txq_id == trans_pcie->cmd_queue)
+	if (txq_id == trans->txqs.cmd.q_id)
 		for (i = 0; i < txq->n_window; i++) {
 			kzfree(txq->entries[i].cmd);
 			kzfree(txq->entries[i].free_buf);
@@ -1265,9 +1264,9 @@ static void iwl_pcie_gen2_txq_free(struct iwl_trans *trans, int txq_id)
 
 	iwl_pcie_gen2_txq_free_memory(trans, txq);
 
-	trans_pcie->txq[txq_id] = NULL;
+	trans->txqs.txq[txq_id] = NULL;
 
-	clear_bit(txq_id, trans_pcie->queue_used);
+	clear_bit(txq_id, trans->txqs.queue_used);
 }
 
 int iwl_trans_pcie_dyn_txq_alloc_dma(struct iwl_trans *trans,
@@ -1327,7 +1326,6 @@ int iwl_trans_pcie_txq_alloc_response(struct iwl_trans *trans,
 				      struct iwl_txq *txq,
 				      struct iwl_host_cmd *hcmd)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_tx_queue_cfg_rsp *rsp;
 	int ret, qid;
 	u32 wr_ptr;
@@ -1342,20 +1340,20 @@ int iwl_trans_pcie_txq_alloc_response(struct iwl_trans *trans,
 	qid = le16_to_cpu(rsp->queue_number);
 	wr_ptr = le16_to_cpu(rsp->write_pointer);
 
-	if (qid >= ARRAY_SIZE(trans_pcie->txq)) {
+	if (qid >= ARRAY_SIZE(trans->txqs.txq)) {
 		WARN_ONCE(1, "queue index %d unsupported", qid);
 		ret = -EIO;
 		goto error_free_resp;
 	}
 
-	if (test_and_set_bit(qid, trans_pcie->queue_used)) {
+	if (test_and_set_bit(qid, trans->txqs.queue_used)) {
 		WARN_ONCE(1, "queue %d already used", qid);
 		ret = -EIO;
 		goto error_free_resp;
 	}
 
 	txq->id = qid;
-	trans_pcie->txq[qid] = txq;
+	trans->txqs.txq[qid] = txq;
 	wr_ptr &= (trans->trans_cfg->base_params->max_tfd_queue_size - 1);
 
 	/* Place first TFD at index corresponding to start sequence number */
@@ -1413,8 +1411,6 @@ int iwl_trans_pcie_dyn_txq_alloc(struct iwl_trans *trans,
 
 void iwl_trans_pcie_dyn_txq_free(struct iwl_trans *trans, int queue)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-
 	if (WARN(queue >= IWL_MAX_TVQM_QUEUES,
 		 "queue %d out of range", queue))
 		return;
@@ -1425,7 +1421,7 @@ void iwl_trans_pcie_dyn_txq_free(struct iwl_trans *trans, int queue)
 	 * allow the op_mode to call txq_disable after it already called
 	 * stop_device.
 	 */
-	if (!test_and_clear_bit(queue, trans_pcie->queue_used)) {
+	if (!test_and_clear_bit(queue, trans->txqs.queue_used)) {
 		WARN_ONCE(test_bit(STATUS_DEVICE_ENABLED, &trans->status),
 			  "queue %d not used", queue);
 		return;
@@ -1433,22 +1429,21 @@ void iwl_trans_pcie_dyn_txq_free(struct iwl_trans *trans, int queue)
 
 	iwl_pcie_gen2_txq_unmap(trans, queue);
 
-	iwl_pcie_gen2_txq_free_memory(trans, trans_pcie->txq[queue]);
-	trans_pcie->txq[queue] = NULL;
+	iwl_pcie_gen2_txq_free_memory(trans, trans->txqs.txq[queue]);
+	trans->txqs.txq[queue] = NULL;
 
 	IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", queue);
 }
 
 void iwl_pcie_gen2_tx_free(struct iwl_trans *trans)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int i;
 
-	memset(trans_pcie->queue_used, 0, sizeof(trans_pcie->queue_used));
+	memset(trans->txqs.queue_used, 0, sizeof(trans->txqs.queue_used));
 
 	/* Free all TX queues */
-	for (i = 0; i < ARRAY_SIZE(trans_pcie->txq); i++) {
-		if (!trans_pcie->txq[i])
+	for (i = 0; i < ARRAY_SIZE(trans->txqs.txq); i++) {
+		if (!trans->txqs.txq[i])
 			continue;
 
 		iwl_pcie_gen2_txq_free(trans, i);
@@ -1457,35 +1452,34 @@ void iwl_pcie_gen2_tx_free(struct iwl_trans *trans)
 
 int iwl_pcie_gen2_tx_init(struct iwl_trans *trans, int txq_id, int queue_size)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	struct iwl_txq *queue;
 	int ret;
 
 	/* alloc and init the tx queue */
-	if (!trans_pcie->txq[txq_id]) {
+	if (!trans->txqs.txq[txq_id]) {
 		queue = kzalloc(sizeof(*queue), GFP_KERNEL);
 		if (!queue) {
 			IWL_ERR(trans, "Not enough memory for tx queue\n");
 			return -ENOMEM;
 		}
-		trans_pcie->txq[txq_id] = queue;
+		trans->txqs.txq[txq_id] = queue;
 		ret = iwl_pcie_txq_alloc(trans, queue, queue_size, true);
 		if (ret) {
 			IWL_ERR(trans, "Tx %d queue init failed\n", txq_id);
 			goto error;
 		}
 	} else {
-		queue = trans_pcie->txq[txq_id];
+		queue = trans->txqs.txq[txq_id];
 	}
 
 	ret = iwl_pcie_txq_init(trans, queue, queue_size,
-				(txq_id == trans_pcie->cmd_queue));
+				(txq_id == trans->txqs.cmd.q_id));
 	if (ret) {
 		IWL_ERR(trans, "Tx %d queue alloc failed\n", txq_id);
 		goto error;
 	}
-	trans_pcie->txq[txq_id]->id = txq_id;
-	set_bit(txq_id, trans_pcie->queue_used);
+	trans->txqs.txq[txq_id]->id = txq_id;
+	set_bit(txq_id, trans->txqs.queue_used);
 
 	return 0;
 
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
index 757cf4e9de33..5c6c3fa0d29f 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c
@@ -261,7 +261,7 @@ static void iwl_pcie_txq_inval_byte_cnt_tbl(struct iwl_trans *trans,
 
 	WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX);
 
-	if (txq_id != trans_pcie->cmd_queue)
+	if (txq_id != trans->txqs.cmd.q_id)
 		sta_id = tx_cmd->sta_id;
 
 	bc_ent = cpu_to_le16(1 | (sta_id << 12));
@@ -279,7 +279,6 @@ static void iwl_pcie_txq_inval_byte_cnt_tbl(struct iwl_trans *trans,
 static void iwl_pcie_txq_inc_wr_ptr(struct iwl_trans *trans,
 				    struct iwl_txq *txq)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	u32 reg = 0;
 	int txq_id = txq->id;
 
@@ -292,7 +291,7 @@ static void iwl_pcie_txq_inc_wr_ptr(struct iwl_trans *trans,
 	 * 3. there is a chance that the NIC is asleep
 	 */
 	if (!trans->trans_cfg->base_params->shadow_reg_enable &&
-	    txq_id != trans_pcie->cmd_queue &&
+	    txq_id != trans->txqs.cmd.q_id &&
 	    test_bit(STATUS_TPOWER_PMI, &trans->status)) {
 		/*
 		 * wake up nic if it's powered down ...
@@ -323,13 +322,12 @@ static void iwl_pcie_txq_inc_wr_ptr(struct iwl_trans *trans,
 
 void iwl_pcie_txq_check_wrptrs(struct iwl_trans *trans)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int i;
 
 	for (i = 0; i < trans->trans_cfg->base_params->num_of_queues; i++) {
-		struct iwl_txq *txq = trans_pcie->txq[i];
+		struct iwl_txq *txq = trans->txqs.txq[i];
 
-		if (!test_bit(i, trans_pcie->queue_used))
+		if (!test_bit(i, trans->txqs.queue_used))
 			continue;
 
 		spin_lock_bh(&txq->lock);
@@ -660,14 +658,14 @@ static void iwl_pcie_clear_cmd_in_flight(struct iwl_trans *trans)
 static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 
 	spin_lock_bh(&txq->lock);
 	while (txq->write_ptr != txq->read_ptr) {
 		IWL_DEBUG_TX_REPLY(trans, "Q %d Free %d\n",
 				   txq_id, txq->read_ptr);
 
-		if (txq_id != trans_pcie->cmd_queue) {
+		if (txq_id != trans->txqs.cmd.q_id) {
 			struct sk_buff *skb = txq->entries[txq->read_ptr].skb;
 
 			if (WARN_ON_ONCE(!skb))
@@ -682,7 +680,7 @@ static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id)
 			unsigned long flags;
 
 			spin_lock_irqsave(&trans_pcie->reg_lock, flags);
-			if (txq_id == trans_pcie->cmd_queue)
+			if (txq_id == trans->txqs.cmd.q_id)
 				iwl_pcie_clear_cmd_in_flight(trans);
 			spin_unlock_irqrestore(&trans_pcie->reg_lock, flags);
 		}
@@ -711,7 +709,7 @@ static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id)
 static void iwl_pcie_txq_free(struct iwl_trans *trans, int txq_id)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 	struct device *dev = trans->dev;
 	int i;
 
@@ -721,7 +719,7 @@ static void iwl_pcie_txq_free(struct iwl_trans *trans, int txq_id)
 	iwl_pcie_txq_unmap(trans, txq_id);
 
 	/* De-alloc array of command/tx buffers */
-	if (txq_id == trans_pcie->cmd_queue)
+	if (txq_id == trans->txqs.cmd.q_id)
 		for (i = 0; i < txq->n_window; i++) {
 			kzfree(txq->entries[i].cmd);
 			kzfree(txq->entries[i].free_buf);
@@ -760,8 +758,9 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr)
 				SCD_CONTEXT_MEM_LOWER_BOUND) / sizeof(u32);
 
 	/* make sure all queue are not stopped/used */
-	memset(trans_pcie->queue_stopped, 0, sizeof(trans_pcie->queue_stopped));
-	memset(trans_pcie->queue_used, 0, sizeof(trans_pcie->queue_used));
+	memset(trans->txqs.queue_stopped, 0,
+	       sizeof(trans->txqs.queue_stopped));
+	memset(trans->txqs.queue_used, 0, sizeof(trans->txqs.queue_used));
 
 	trans_pcie->scd_base_addr =
 		iwl_read_prph(trans, SCD_SRAM_BASE_ADDR);
@@ -783,9 +782,9 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr)
 	if (trans->trans_cfg->base_params->scd_chain_ext_wa)
 		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_q_wdg_timeout);
+	iwl_trans_ac_txq_enable(trans, trans->txqs.cmd.q_id,
+				trans->txqs.cmd.fifo,
+				trans->txqs.cmd.wdg_timeout);
 
 	/* Activate all Tx DMA/FIFO channels */
 	iwl_scd_activate_fifos(trans);
@@ -821,7 +820,7 @@ void iwl_trans_pcie_tx_reset(struct iwl_trans *trans)
 
 	for (txq_id = 0; txq_id < trans->trans_cfg->base_params->num_of_queues;
 	     txq_id++) {
-		struct iwl_txq *txq = trans_pcie->txq[txq_id];
+		struct iwl_txq *txq = trans->txqs.txq[txq_id];
 		if (trans->trans_cfg->use_tfh)
 			iwl_write_direct64(trans,
 					   FH_MEM_CBBC_QUEUE(trans, txq_id),
@@ -897,8 +896,9 @@ int iwl_pcie_tx_stop(struct iwl_trans *trans)
 	 * queues. This happens when we have an rfkill interrupt.
 	 * Since we stop Tx altogether - mark the queues as stopped.
 	 */
-	memset(trans_pcie->queue_stopped, 0, sizeof(trans_pcie->queue_stopped));
-	memset(trans_pcie->queue_used, 0, sizeof(trans_pcie->queue_used));
+	memset(trans->txqs.queue_stopped, 0,
+	       sizeof(trans->txqs.queue_stopped));
+	memset(trans->txqs.queue_used, 0, sizeof(trans->txqs.queue_used));
 
 	/* This can happen: start_hw, stop_device */
 	if (!trans_pcie->txq_memory)
@@ -922,7 +922,7 @@ void iwl_pcie_tx_free(struct iwl_trans *trans)
 	int txq_id;
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 
-	memset(trans_pcie->queue_used, 0, sizeof(trans_pcie->queue_used));
+	memset(trans->txqs.queue_used, 0, sizeof(trans->txqs.queue_used));
 
 	/* Tx queues */
 	if (trans_pcie->txq_memory) {
@@ -930,7 +930,7 @@ void iwl_pcie_tx_free(struct iwl_trans *trans)
 		     txq_id < trans->trans_cfg->base_params->num_of_queues;
 		     txq_id++) {
 			iwl_pcie_txq_free(trans, txq_id);
-			trans_pcie->txq[txq_id] = NULL;
+			trans->txqs.txq[txq_id] = NULL;
 		}
 	}
 
@@ -991,7 +991,7 @@ static int iwl_pcie_tx_alloc(struct iwl_trans *trans)
 	/* Alloc and init all Tx queues, including the command queue (#4/#9) */
 	for (txq_id = 0; txq_id < trans->trans_cfg->base_params->num_of_queues;
 	     txq_id++) {
-		bool cmd_queue = (txq_id == trans_pcie->cmd_queue);
+		bool cmd_queue = (txq_id == trans->txqs.cmd.q_id);
 
 		if (cmd_queue)
 			slots_num = max_t(u32, IWL_CMD_QUEUE_SIZE,
@@ -999,14 +999,14 @@ static int iwl_pcie_tx_alloc(struct iwl_trans *trans)
 		else
 			slots_num = max_t(u32, IWL_DEFAULT_QUEUE_SIZE,
 					  trans->cfg->min_256_ba_txq_size);
-		trans_pcie->txq[txq_id] = &trans_pcie->txq_memory[txq_id];
-		ret = iwl_pcie_txq_alloc(trans, trans_pcie->txq[txq_id],
+		trans->txqs.txq[txq_id] = &trans_pcie->txq_memory[txq_id];
+		ret = iwl_pcie_txq_alloc(trans, trans->txqs.txq[txq_id],
 					 slots_num, cmd_queue);
 		if (ret) {
 			IWL_ERR(trans, "Tx %d queue alloc failed\n", txq_id);
 			goto error;
 		}
-		trans_pcie->txq[txq_id]->id = txq_id;
+		trans->txqs.txq[txq_id]->id = txq_id;
 	}
 
 	return 0;
@@ -1045,7 +1045,7 @@ int iwl_pcie_tx_init(struct iwl_trans *trans)
 	/* Alloc and init all Tx queues, including the command queue (#4/#9) */
 	for (txq_id = 0; txq_id < trans->trans_cfg->base_params->num_of_queues;
 	     txq_id++) {
-		bool cmd_queue = (txq_id == trans_pcie->cmd_queue);
+		bool cmd_queue = (txq_id == trans->txqs.cmd.q_id);
 
 		if (cmd_queue)
 			slots_num = max_t(u32, IWL_CMD_QUEUE_SIZE,
@@ -1053,7 +1053,7 @@ int iwl_pcie_tx_init(struct iwl_trans *trans)
 		else
 			slots_num = max_t(u32, IWL_DEFAULT_QUEUE_SIZE,
 					  trans->cfg->min_256_ba_txq_size);
-		ret = iwl_pcie_txq_init(trans, trans_pcie->txq[txq_id],
+		ret = iwl_pcie_txq_init(trans, trans->txqs.txq[txq_id],
 					slots_num, cmd_queue);
 		if (ret) {
 			IWL_ERR(trans, "Tx %d queue init failed\n", txq_id);
@@ -1067,7 +1067,7 @@ int iwl_pcie_tx_init(struct iwl_trans *trans)
 		 * Circular buffer (TFD queue in DRAM) physical base address
 		 */
 		iwl_write_direct32(trans, FH_MEM_CBBC_QUEUE(trans, txq_id),
-				   trans_pcie->txq[txq_id]->dma_addr >> 8);
+				   trans->txqs.txq[txq_id]->dma_addr >> 8);
 	}
 
 	iwl_set_bits_prph(trans, SCD_GP_CTRL, SCD_GP_CTRL_AUTO_ACTIVE_MODE);
@@ -1112,18 +1112,18 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 			    struct sk_buff_head *skbs)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 	int tfd_num = iwl_pcie_get_cmd_index(txq, ssn);
 	int read_ptr = iwl_pcie_get_cmd_index(txq, txq->read_ptr);
 	int last_to_free;
 
 	/* This function is not meant to release cmd queue*/
-	if (WARN_ON(txq_id == trans_pcie->cmd_queue))
+	if (WARN_ON(txq_id == trans->txqs.cmd.q_id))
 		return;
 
 	spin_lock_bh(&txq->lock);
 
-	if (!test_bit(txq_id, trans_pcie->queue_used)) {
+	if (!test_bit(txq_id, trans->txqs.queue_used)) {
 		IWL_DEBUG_TX_QUEUES(trans, "Q %d inactive - ignoring idx %d\n",
 				    txq_id, ssn);
 		goto out;
@@ -1175,7 +1175,7 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 	iwl_pcie_txq_progress(txq);
 
 	if (iwl_queue_space(trans, txq) > txq->low_mark &&
-	    test_bit(txq_id, trans_pcie->queue_stopped)) {
+	    test_bit(txq_id, trans->txqs.queue_stopped)) {
 		struct sk_buff_head overflow_skbs;
 
 		__skb_queue_head_init(&overflow_skbs);
@@ -1228,8 +1228,7 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn,
 /* Set wr_ptr of specific device and txq  */
 void iwl_trans_pcie_set_q_ptrs(struct iwl_trans *trans, int txq_id, int ptr)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 
 	spin_lock_bh(&txq->lock);
 
@@ -1289,7 +1288,7 @@ static int iwl_pcie_set_cmd_in_flight(struct iwl_trans *trans,
 static void iwl_pcie_cmdq_reclaim(struct iwl_trans *trans, int txq_id, int idx)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 	unsigned long flags;
 	int nfreed = 0;
 	u16 r;
@@ -1301,7 +1300,7 @@ static void iwl_pcie_cmdq_reclaim(struct iwl_trans *trans, int txq_id, int idx)
 
 	if (idx >= trans->trans_cfg->base_params->max_tfd_queue_size ||
 	    (!iwl_queue_used(txq, idx))) {
-		WARN_ONCE(test_bit(txq_id, trans_pcie->queue_used),
+		WARN_ONCE(test_bit(txq_id, trans->txqs.queue_used),
 			  "%s: Read index for DMA queue txq id (%d), index %d is out of range [0-%d] %d %d.\n",
 			  __func__, txq_id, idx,
 			  trans->trans_cfg->base_params->max_tfd_queue_size,
@@ -1363,11 +1362,11 @@ bool iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 			       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];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 	int fifo = -1;
 	bool scd_bug = false;
 
-	if (test_and_set_bit(txq_id, trans_pcie->queue_used))
+	if (test_and_set_bit(txq_id, trans->txqs.queue_used))
 		WARN_ONCE(1, "queue %d already used - expect issues", txq_id);
 
 	txq->wd_timeout = msecs_to_jiffies(wdg_timeout);
@@ -1376,7 +1375,7 @@ bool iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 		fifo = cfg->fifo;
 
 		/* Disable the scheduler prior configuring the cmd queue */
-		if (txq_id == trans_pcie->cmd_queue &&
+		if (txq_id == trans->txqs.cmd.q_id &&
 		    trans_pcie->scd_set_active)
 			iwl_scd_enable_set_active(trans, 0);
 
@@ -1384,7 +1383,7 @@ bool iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 		iwl_scd_txq_set_inactive(trans, txq_id);
 
 		/* Set this queue as a chain-building queue unless it is CMD */
-		if (txq_id != trans_pcie->cmd_queue)
+		if (txq_id != trans->txqs.cmd.q_id)
 			iwl_scd_txq_set_chain(trans, txq_id);
 
 		if (cfg->aggregate) {
@@ -1454,7 +1453,7 @@ bool iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 			       SCD_QUEUE_STTS_REG_MSK);
 
 		/* enable the scheduler for this queue (only) */
-		if (txq_id == trans_pcie->cmd_queue &&
+		if (txq_id == trans->txqs.cmd.q_id &&
 		    trans_pcie->scd_set_active)
 			iwl_scd_enable_set_active(trans, BIT(txq_id));
 
@@ -1473,8 +1472,7 @@ bool iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, u16 ssn,
 void iwl_trans_pcie_txq_set_shared_mode(struct iwl_trans *trans, u32 txq_id,
 					bool shared_mode)
 {
-	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[txq_id];
+	struct iwl_txq *txq = trans->txqs.txq[txq_id];
 
 	txq->ampdu = !shared_mode;
 }
@@ -1487,8 +1485,8 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id,
 			SCD_TX_STTS_QUEUE_OFFSET(txq_id);
 	static const u32 zero_val[4] = {};
 
-	trans_pcie->txq[txq_id]->frozen_expiry_remainder = 0;
-	trans_pcie->txq[txq_id]->frozen = false;
+	trans->txqs.txq[txq_id]->frozen_expiry_remainder = 0;
+	trans->txqs.txq[txq_id]->frozen = false;
 
 	/*
 	 * Upon HW Rfkill - we stop the device, and then stop the queues
@@ -1496,7 +1494,7 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id,
 	 * allow the op_mode to call txq_disable after it already called
 	 * stop_device.
 	 */
-	if (!test_and_clear_bit(txq_id, trans_pcie->queue_used)) {
+	if (!test_and_clear_bit(txq_id, trans->txqs.queue_used)) {
 		WARN_ONCE(test_bit(STATUS_DEVICE_ENABLED, &trans->status),
 			  "queue %d not used", txq_id);
 		return;
@@ -1510,7 +1508,7 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id,
 	}
 
 	iwl_pcie_txq_unmap(trans, txq_id);
-	trans_pcie->txq[txq_id]->ampdu = false;
+	trans->txqs.txq[txq_id]->ampdu = false;
 
 	IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id);
 }
@@ -1530,7 +1528,7 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans,
 				 struct iwl_host_cmd *cmd)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[trans_pcie->cmd_queue];
+	struct iwl_txq *txq = trans->txqs.txq[trans->txqs.cmd.q_id];
 	struct iwl_device_cmd *out_cmd;
 	struct iwl_cmd_meta *out_meta;
 	unsigned long flags;
@@ -1656,7 +1654,7 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans,
 				    sizeof(struct iwl_cmd_header_wide));
 		out_cmd->hdr_wide.reserved = 0;
 		out_cmd->hdr_wide.sequence =
-			cpu_to_le16(QUEUE_TO_SEQ(trans_pcie->cmd_queue) |
+			cpu_to_le16(QUEUE_TO_SEQ(trans->txqs.cmd.q_id) |
 						 INDEX_TO_SEQ(txq->write_ptr));
 
 		cmd_pos = sizeof(struct iwl_cmd_header_wide);
@@ -1664,7 +1662,7 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans,
 	} else {
 		out_cmd->hdr.cmd = iwl_cmd_opcode(cmd->id);
 		out_cmd->hdr.sequence =
-			cpu_to_le16(QUEUE_TO_SEQ(trans_pcie->cmd_queue) |
+			cpu_to_le16(QUEUE_TO_SEQ(trans->txqs.cmd.q_id) |
 						 INDEX_TO_SEQ(txq->write_ptr));
 		out_cmd->hdr.group_id = 0;
 
@@ -1715,7 +1713,7 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans,
 		     iwl_get_cmd_string(trans, cmd->id),
 		     group_id, out_cmd->hdr.cmd,
 		     le16_to_cpu(out_cmd->hdr.sequence),
-		     cmd_size, txq->write_ptr, idx, trans_pcie->cmd_queue);
+		     cmd_size, txq->write_ptr, idx, trans->txqs.cmd.q_id);
 
 	/* start the TFD with the minimum copy bytes */
 	tb0_size = min_t(int, copy_size, IWL_FIRST_TB_SIZE);
@@ -1815,14 +1813,14 @@ void iwl_pcie_hcmd_complete(struct iwl_trans *trans,
 	struct iwl_device_cmd *cmd;
 	struct iwl_cmd_meta *meta;
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[trans_pcie->cmd_queue];
+	struct iwl_txq *txq = trans->txqs.txq[trans->txqs.cmd.q_id];
 
 	/* If a Tx command is being handled and it isn't in the actual
 	 * command queue then there a command routing bug has been introduced
 	 * in the queue management code. */
-	if (WARN(txq_id != trans_pcie->cmd_queue,
+	if (WARN(txq_id != trans->txqs.cmd.q_id,
 		 "wrong command queue %d (should be %d), sequence 0x%X readp=%d writep=%d\n",
-		 txq_id, trans_pcie->cmd_queue, sequence, txq->read_ptr,
+		 txq_id, trans->txqs.cmd.q_id, sequence, txq->read_ptr,
 		 txq->write_ptr)) {
 		iwl_print_hex_error(trans, pkt, 32);
 		return;
@@ -1894,7 +1892,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 				   struct iwl_host_cmd *cmd)
 {
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
-	struct iwl_txq *txq = trans_pcie->txq[trans_pcie->cmd_queue];
+	struct iwl_txq *txq = trans->txqs.txq[trans->txqs.cmd.q_id];
 	int cmd_idx;
 	int ret;
 
@@ -2332,9 +2330,9 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
 	u16 wifi_seq;
 	bool amsdu;
 
-	txq = trans_pcie->txq[txq_id];
+	txq = trans->txqs.txq[txq_id];
 
-	if (WARN_ONCE(!test_bit(txq_id, trans_pcie->queue_used),
+	if (WARN_ONCE(!test_bit(txq_id, trans->txqs.queue_used),
 		      "TX on unused queue %d\n", txq_id))
 		return -EINVAL;
 
-- 
2.26.2

[PATCH 09/11] iwlwifi: mvm: fix aux station leak

[Luca Coelho]

From: Sharon <sara.sharon@intel.com>

When mvm is initialized we alloc aux station with aux queue.
We later free the station memory when driver is stopped, but we
never free the queue's memory, which casues a leak.

Add a proper de-initialization of the station.

Signed-off-by: Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c  |  5 ++---
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c   | 18 +++++++++++++-----
 drivers/net/wireless/intel/iwlwifi/mvm/sta.h   |  6 +++---
 3 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 10df77ab1a77..77916231ff7d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1208,14 +1208,13 @@ void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
 	 */
 	flush_work(&mvm->roc_done_wk);
 
+	iwl_mvm_rm_aux_sta(mvm);
+
 	iwl_mvm_stop_device(mvm);
 
 	iwl_mvm_async_handlers_purge(mvm);
 	/* async_handlers_list is empty and will stay empty: HW is stopped */
 
-	/* the fw is stopped, the aux sta is dead: clean up driver state */
-	iwl_mvm_del_aux_sta(mvm);
-
 	/*
 	 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
 	 * hw (as restart_complete() won't be called in this case) and mac80211
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 44d4720b7629..fee01cbbd3ac 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -2093,16 +2093,24 @@ int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	return ret;
 }
 
-void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm)
+int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm)
 {
-	iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta);
-}
+	int ret;
 
-void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm)
-{
 	lockdep_assert_held(&mvm->mutex);
 
+	iwl_mvm_disable_txq(mvm, NULL, mvm->aux_queue, IWL_MAX_TID_COUNT, 0);
+	ret = iwl_mvm_rm_sta_common(mvm, mvm->aux_sta.sta_id);
+	if (ret)
+		IWL_WARN(mvm, "Failed sending remove station\n");
 	iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
+
+	return ret;
+}
+
+void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm)
+{
+	iwl_mvm_dealloc_int_sta(mvm, &mvm->snif_sta);
 }
 
 /*
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
index 8d70093847cb..da2d1ac01229 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
@@ -8,7 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -541,7 +541,7 @@ int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		       int tid, u8 queue, bool start);
 
 int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm);
-void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm);
+int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm);
 
 int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
-- 
2.26.2

[PATCH 10/11] iwlwifi: mvm: add support for range request version 10

[Luca Coelho]

From: Avraham Stern <avraham.stern@intel.com>

Range request version 10 keeps the same command size as version 9
but uses 2 reserved fields for the responder beacon interval and
station id (if exists).
For now, since the beacon interval of unassoc APs is unknown, use
a value of 100 TUs which is a common value for many APs.

While at it, remove the definition for CCMP_256 cipher, since this
is not supported.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 .../wireless/intel/iwlwifi/fw/api/location.h  | 14 +++----
 .../intel/iwlwifi/mvm/ftm-initiator.c         | 42 +++++++++++++++++--
 2 files changed, 45 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/location.h b/drivers/net/wireless/intel/iwlwifi/fw/api/location.h
index 7ffad19d80fd..1df2e497fabf 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/location.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/location.h
@@ -550,13 +550,11 @@ struct iwl_tof_range_req_ap_entry_v4 {
 /**
  * enum iwl_location_cipher - location cipher selection
  * @IWL_LOCATION_CIPHER_CCMP_128: CCMP 128
- * @IWL_LOCATION_CIPHER_CCMP_256: CCMP 256
  * @IWL_LOCATION_CIPHER_GCMP_128: GCMP 128
  * @IWL_LOCATION_CIPHER_GCMP_256: GCMP 256
  */
 enum iwl_location_cipher {
 	IWL_LOCATION_CIPHER_CCMP_128,
-	IWL_LOCATION_CIPHER_CCMP_256,
 	IWL_LOCATION_CIPHER_GCMP_128,
 	IWL_LOCATION_CIPHER_GCMP_256,
 };
@@ -577,7 +575,8 @@ enum iwl_location_cipher {
  * @samples_per_burst: the number of FTMs pairs in single Burst (1-31);
  * @num_of_bursts: Recommended value to be sent to the AP. 2s Exponent of
  *	the number of measurement iterations (min 2^0 = 1, max 2^14)
- * @reserved: For alignment and future use
+ * @sta_id: the station id of the AP. Only relevant when associated to the AP,
+ *	otherwise should be set to &IWL_MVM_INVALID_STA.
  * @cipher: pairwise cipher suite for secured measurement.
  *          &enum iwl_location_cipher.
  * @hltk: HLTK to be used for secured 11az measurement
@@ -586,7 +585,8 @@ enum iwl_location_cipher {
  *         If &IWL_INITIATOR_AP_FLAGS_USE_CALIB is set, the fw will use the
  *         calibration value that corresponds to the rx bandwidth of the FTM
  *         frame.
- * @reserved2: For alignment and future use.
+ * @beacon_interval: beacon interval of the AP in TUs. Only required if
+ *	&IWL_INITIATOR_AP_FLAGS_TB is set.
  */
 struct iwl_tof_range_req_ap_entry {
 	__le32 initiator_ap_flags;
@@ -598,13 +598,13 @@ struct iwl_tof_range_req_ap_entry {
 	__le16 burst_period;
 	u8 samples_per_burst;
 	u8 num_of_bursts;
-	u8 reserved;
+	u8 sta_id;
 	u8 cipher;
 	u8 hltk[HLTK_11AZ_LEN];
 	u8 tk[TK_11AZ_LEN];
 	__le16 calib[IWL_TOF_BW_NUM];
-	__le16 reserved2;
-} __packed; /* LOCATION_RANGE_REQ_AP_ENTRY_CMD_API_S_VER_5 */
+	__le16 beacon_interval;
+} __packed; /* LOCATION_RANGE_REQ_AP_ENTRY_CMD_API_S_VER_6 */
 
 /**
  * enum iwl_tof_response_mode
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
index aaa7dd1788b1..5ca45915cf7c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
@@ -391,9 +391,27 @@ iwl_mvm_ftm_put_target_v3(struct iwl_mvm *mvm,
 }
 
 static int
-iwl_mvm_ftm_put_target(struct iwl_mvm *mvm,
+iwl_mvm_ftm_put_target_v4(struct iwl_mvm *mvm,
+			  struct cfg80211_pmsr_request_peer *peer,
+			  struct iwl_tof_range_req_ap_entry_v4 *target)
+{
+	int ret;
+
+	ret = iwl_mvm_ftm_target_chandef_v2(mvm, peer, &target->channel_num,
+					    &target->format_bw,
+					    &target->ctrl_ch_position);
+	if (ret)
+		return ret;
+
+	iwl_mvm_ftm_put_target_common(mvm, peer, (void *)target);
+
+	return 0;
+}
+
+static int
+iwl_mvm_ftm_put_target(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		       struct cfg80211_pmsr_request_peer *peer,
-		       struct iwl_tof_range_req_ap_entry_v4 *target)
+		       struct iwl_tof_range_req_ap_entry *target)
 {
 	int ret;
 
@@ -405,6 +423,20 @@ iwl_mvm_ftm_put_target(struct iwl_mvm *mvm,
 
 	iwl_mvm_ftm_put_target_common(mvm, peer, (void *)target);
 
+	if (vif->bss_conf.assoc &&
+	    !memcmp(peer->addr, vif->bss_conf.bssid, ETH_ALEN)) {
+		struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
+		target->sta_id = mvmvif->ap_sta_id;
+	} else {
+		target->sta_id = IWL_MVM_INVALID_STA;
+	}
+
+	/*
+	 * TODO: Beacon interval is currently unknown, so use the common value
+	 * of 100 TUs.
+	 */
+	target->beacon_interval = cpu_to_le16(100);
 	return 0;
 }
 
@@ -496,7 +528,7 @@ static int iwl_mvm_ftm_start_v8(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	for (i = 0; i < cmd.num_of_ap; i++) {
 		struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
 
-		err = iwl_mvm_ftm_put_target(mvm, peer, &cmd.ap[i]);
+		err = iwl_mvm_ftm_put_target_v4(mvm, peer, &cmd.ap[i]);
 		if (err)
 			return err;
 	}
@@ -521,8 +553,9 @@ static int iwl_mvm_ftm_start_v9(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	for (i = 0; i < cmd.num_of_ap; i++) {
 		struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
+		struct iwl_tof_range_req_ap_entry *target = &cmd.ap[i];
 
-		err = iwl_mvm_ftm_put_target(mvm, peer, (void *)&cmd.ap[i]);
+		err = iwl_mvm_ftm_put_target(mvm, vif, peer, target);
 		if (err)
 			return err;
 	}
@@ -548,6 +581,7 @@ int iwl_mvm_ftm_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 		switch (cmd_ver) {
 		case 9:
+		case 10:
 			err = iwl_mvm_ftm_start_v9(mvm, vif, req);
 			break;
 		case 8:
-- 
2.26.2

[PATCH 11/11] iwlwifi: bump FW API to 56 for AX devices

[Luca Coelho]

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

Start supporting API version 56 for AX devices.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/cfg/22000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/22000.c b/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
index 1daa653bcb99..efe427049a6e 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
@@ -57,7 +57,7 @@
 #include "iwl-prph.h"
 
 /* Highest firmware API version supported */
-#define IWL_22000_UCODE_API_MAX	55
+#define IWL_22000_UCODE_API_MAX	56
 
 /* Lowest firmware API version supported */
 #define IWL_22000_UCODE_API_MIN	39
-- 
2.26.2

[PATCH 00/11] iwlwifi: updates intended for v5.8 2020-05-08-2

[Luca Coelho]

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

Hi,

Here's the an update to the sixth set of patches intended for v5.8.
It's the usual development, new features, cleanups and bugfixes.

The changes are:

* Update range request API;
* Add ACPI DSM support;
* Support enabling 5.2GHz bands in Indonesia via ACPI;
* Bump FW API version to 56;
* TX queues refactoring started;
* Fix one memory leak;
* Some other small fixes and clean-ups;

In v2:
  * Replaced one "static const" to "const static" [04/11];
  * Return int instead of ERR_PTR() in iwl_acpi_get_dsm_u8() [04/11];
  * Return bool instead of funky logic [05/11].

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

Please review.

Cheers,
Luca.


Avraham Stern (1):
  iwlwifi: mvm: add support for range request version 10

Gil Adam (2):
  iwlwifi: acpi: support device specific method (DSM)
  iwlwifi: acpi: evaluate dsm to enable 5.2 bands in Indonesia

Haim Dreyfuss (2):
  iwlwifi: set NO_HE if the regulatory domain forbids it
  iwlwifi: pcie: don't count on the FW to set persistence mode

Johannes Berg (1):
  iwlwifi: pcie: gen3: indicate 8k/12k RB size to device

Luca Coelho (1):
  iwlwifi: bump FW API to 56 for AX devices

Mordechay Goodstein (3):
  iwlwifi: pcie: keep trans instead of trans_pcie in iwl_txq
  iwlwifi: move iwl_txq and substructures to a common trans header
  iwlwifi: move txq-specific from trans_pcie to common trans

Sharon (1):
  iwlwifi: mvm: fix aux station leak

 .../net/wireless/intel/iwlwifi/cfg/22000.c    |   2 +-
 drivers/net/wireless/intel/iwlwifi/fw/acpi.c  |  99 ++++++++++++--
 drivers/net/wireless/intel/iwlwifi/fw/acpi.h  |  22 +++
 .../wireless/intel/iwlwifi/fw/api/location.h  |  14 +-
 .../wireless/intel/iwlwifi/fw/api/nvm-reg.h   |  34 ++++-
 .../intel/iwlwifi/iwl-context-info-gen3.h     |  12 +-
 .../wireless/intel/iwlwifi/iwl-nvm-parse.c    |   5 +
 .../net/wireless/intel/iwlwifi/iwl-trans.h    | 128 ++++++++++++++++++
 .../intel/iwlwifi/mvm/ftm-initiator.c         |  42 +++++-
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c   |  43 ++++++
 .../net/wireless/intel/iwlwifi/mvm/mac80211.c |   5 +-
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c  |  18 ++-
 drivers/net/wireless/intel/iwlwifi/mvm/sta.h  |   6 +-
 .../intel/iwlwifi/pcie/ctxt-info-gen3.c       |  10 +-
 .../wireless/intel/iwlwifi/pcie/ctxt-info.c   |   6 +-
 .../wireless/intel/iwlwifi/pcie/internal.h    | 121 +----------------
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c  |   6 +-
 .../wireless/intel/iwlwifi/pcie/trans-gen2.c  |  11 +-
 .../net/wireless/intel/iwlwifi/pcie/trans.c   |  47 +++----
 .../net/wireless/intel/iwlwifi/pcie/tx-gen2.c |  70 +++++-----
 drivers/net/wireless/intel/iwlwifi/pcie/tx.c  | 120 ++++++++--------
 21 files changed, 524 insertions(+), 297 deletions(-)

-- 
2.26.2

[PATCH 01/11] iwlwifi: set NO_HE if the regulatory domain forbids it

[Luca Coelho]

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

If the firmware's regulatory domain forbids HE operation, set it
in the cfg80211 regdomain.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index d91a8e8349e6..ee410417761d 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -240,6 +240,7 @@ enum iwl_nvm_channel_flags {
  * @REG_CAPA_40MHZ_FORBIDDEN: 11n channel with a width of 40Mhz is forbidden
  *	for this regulatory domain (valid only in 5Ghz).
  * @REG_CAPA_DC_HIGH_ENABLED: DC HIGH allowed.
+ * @REG_CAPA_11AX_DISABLED: 11ax is forbidden for this regulatory domain.
  */
 enum iwl_reg_capa_flags {
 	REG_CAPA_BF_CCD_LOW_BAND	= BIT(0),
@@ -250,6 +251,7 @@ enum iwl_reg_capa_flags {
 	REG_CAPA_MCS_9_ALLOWED		= BIT(5),
 	REG_CAPA_40MHZ_FORBIDDEN	= BIT(7),
 	REG_CAPA_DC_HIGH_ENABLED	= BIT(9),
+	REG_CAPA_11AX_DISABLED		= BIT(10),
 };
 
 static inline void iwl_nvm_print_channel_flags(struct device *dev, u32 level,
@@ -1115,6 +1117,9 @@ static u32 iwl_nvm_get_regdom_bw_flags(const u16 *nvm_chan,
 			flags |= NL80211_RRF_NO_160MHZ;
 	}
 
+	if (cap_flags & REG_CAPA_11AX_DISABLED)
+		flags |= NL80211_RRF_NO_HE;
+
 	return flags;
 }
 
-- 
2.26.2