* [PATCH for v5.11 1/7] iwlwifi: mvm: fix the return type for DSM functions 1 and 2
2021-01-22 12:52 [PATCH for v5.11 0/7] iwlwifi: fixes intended for v5.11 2021-01-22 Luca Coelho
@ 2021-01-22 12:52 ` Luca Coelho
2021-01-25 14:00 ` Kalle Valo
2021-01-22 12:52 ` [PATCH for v5.11 2/7] iwlwifi: mvm: invalidate IDs of internal stations at mvm start Luca Coelho
` (5 subsequent siblings)
6 siblings, 1 reply; 9+ messages in thread
From: Luca Coelho @ 2021-01-22 12:52 UTC (permalink / raw)
To: kvalo; +Cc: linux-wireless
From: Matt Chen <matt.chen@intel.com>
The return type value of functions 1 and 2 were considered to be an
integer inside a buffer, but they can also be only an integer, without
the buffer. Fix the code in iwl_acpi_get_dsm_u8() to handle it as a
single integer value, as well as packed inside a buffer.
Signed-off-by: Matt Chen <matt.chen@intel.com>
Fixes: 9db93491f29e ("iwlwifi: acpi: support device specific method (DSM)")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
drivers/net/wireless/intel/iwlwifi/fw/acpi.c | 65 +++++++++++++++-----
drivers/net/wireless/intel/iwlwifi/fw/acpi.h | 7 ++-
drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 25 ++++----
3 files changed, 68 insertions(+), 29 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
index 15248b064380..d8b7776a8dde 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
@@ -80,19 +80,45 @@ static void *iwl_acpi_get_dsm_object(struct device *dev, int rev, int func,
}
/*
- * Evaluate a DSM with no arguments and a single u8 return value (inside a
- * buffer object), verify and return that value.
+ * Generic function to evaluate a DSM with no arguments
+ * and an integer return value,
+ * (as an integer object or inside a buffer object),
+ * verify and assign the value in the "value" parameter.
+ * return 0 in success and the appropriate errno otherwise.
*/
-int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func)
+static int iwl_acpi_get_dsm_integer(struct device *dev, int rev, int func,
+ u64 *value, size_t expected_size)
{
union acpi_object *obj;
- int ret;
+ int ret = 0;
obj = iwl_acpi_get_dsm_object(dev, rev, func, NULL);
- if (IS_ERR(obj))
+ if (IS_ERR(obj)) {
+ IWL_DEBUG_DEV_RADIO(dev,
+ "Failed to get DSM object. func= %d\n",
+ func);
return -ENOENT;
+ }
+
+ if (obj->type == ACPI_TYPE_INTEGER) {
+ *value = obj->integer.value;
+ } else if (obj->type == ACPI_TYPE_BUFFER) {
+ __le64 le_value = 0;
- if (obj->type != ACPI_TYPE_BUFFER) {
+ if (WARN_ON_ONCE(expected_size > sizeof(le_value)))
+ return -EINVAL;
+
+ /* if the buffer size doesn't match the expected size */
+ if (obj->buffer.length != expected_size)
+ IWL_DEBUG_DEV_RADIO(dev,
+ "ACPI: DSM invalid buffer size, padding or truncating (%d)\n",
+ obj->buffer.length);
+
+ /* assuming LE from Intel BIOS spec */
+ memcpy(&le_value, obj->buffer.pointer,
+ min_t(size_t, expected_size, (size_t)obj->buffer.length));
+ *value = le64_to_cpu(le_value);
+ } else {
IWL_DEBUG_DEV_RADIO(dev,
"ACPI: DSM method did not return a valid object, type=%d\n",
obj->type);
@@ -100,15 +126,6 @@ int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func)
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);
@@ -116,6 +133,24 @@ int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func)
ACPI_FREE(obj);
return ret;
}
+
+/*
+ * Evaluate a DSM with no arguments and a u8 return value,
+ */
+int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func, u8 *value)
+{
+ int ret;
+ u64 val;
+
+ ret = iwl_acpi_get_dsm_integer(dev, rev, func, &val, sizeof(u8));
+
+ if (ret < 0)
+ return ret;
+
+ /* cast val (u64) to be u8 */
+ *value = (u8)val;
+ return 0;
+}
IWL_EXPORT_SYMBOL(iwl_acpi_get_dsm_u8);
union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev,
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
index 042dd247d387..1cce30d1ef55 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
* Copyright (C) 2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2020 Intel Corporation
+ * Copyright (C) 2018-2021 Intel Corporation
*/
#ifndef __iwl_fw_acpi__
#define __iwl_fw_acpi__
@@ -99,7 +99,7 @@ struct iwl_fw_runtime;
void *iwl_acpi_get_object(struct device *dev, acpi_string method);
-int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func);
+int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func, u8 *value);
union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev,
union acpi_object *data,
@@ -159,7 +159,8 @@ static inline void *iwl_acpi_get_dsm_object(struct device *dev, int rev,
return ERR_PTR(-ENOENT);
}
-static inline int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func)
+static inline
+int iwl_acpi_get_dsm_u8(struct device *dev, int rev, int func, u8 *value)
{
return -ENOENT;
}
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 0637eb1cff4e..313e9f106f46 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1090,20 +1090,22 @@ static void iwl_mvm_tas_init(struct iwl_mvm *mvm)
static u8 iwl_mvm_eval_dsm_indonesia_5g2(struct iwl_mvm *mvm)
{
+ u8 value;
+
int ret = iwl_acpi_get_dsm_u8((&mvm->fwrt)->dev, 0,
- DSM_FUNC_ENABLE_INDONESIA_5G2);
+ DSM_FUNC_ENABLE_INDONESIA_5G2, &value);
if (ret < 0)
IWL_DEBUG_RADIO(mvm,
"Failed to evaluate DSM function ENABLE_INDONESIA_5G2, ret=%d\n",
ret);
- else if (ret >= DSM_VALUE_INDONESIA_MAX)
+ else if (value >= DSM_VALUE_INDONESIA_MAX)
IWL_DEBUG_RADIO(mvm,
- "DSM function ENABLE_INDONESIA_5G2 return invalid value, ret=%d\n",
- ret);
+ "DSM function ENABLE_INDONESIA_5G2 return invalid value, value=%d\n",
+ value);
- else if (ret == DSM_VALUE_INDONESIA_ENABLE) {
+ else if (value == DSM_VALUE_INDONESIA_ENABLE) {
IWL_DEBUG_RADIO(mvm,
"Evaluated DSM function ENABLE_INDONESIA_5G2: Enabling 5g2\n");
return DSM_VALUE_INDONESIA_ENABLE;
@@ -1114,25 +1116,26 @@ static u8 iwl_mvm_eval_dsm_indonesia_5g2(struct iwl_mvm *mvm)
static u8 iwl_mvm_eval_dsm_disable_srd(struct iwl_mvm *mvm)
{
+ u8 value;
int ret = iwl_acpi_get_dsm_u8((&mvm->fwrt)->dev, 0,
- DSM_FUNC_DISABLE_SRD);
+ DSM_FUNC_DISABLE_SRD, &value);
if (ret < 0)
IWL_DEBUG_RADIO(mvm,
"Failed to evaluate DSM function DISABLE_SRD, ret=%d\n",
ret);
- else if (ret >= DSM_VALUE_SRD_MAX)
+ else if (value >= DSM_VALUE_SRD_MAX)
IWL_DEBUG_RADIO(mvm,
- "DSM function DISABLE_SRD return invalid value, ret=%d\n",
- ret);
+ "DSM function DISABLE_SRD return invalid value, value=%d\n",
+ value);
- else if (ret == DSM_VALUE_SRD_PASSIVE) {
+ else if (value == DSM_VALUE_SRD_PASSIVE) {
IWL_DEBUG_RADIO(mvm,
"Evaluated DSM function DISABLE_SRD: setting SRD to passive\n");
return DSM_VALUE_SRD_PASSIVE;
- } else if (ret == DSM_VALUE_SRD_DISABLE) {
+ } else if (value == DSM_VALUE_SRD_DISABLE) {
IWL_DEBUG_RADIO(mvm,
"Evaluated DSM function DISABLE_SRD: disabling SRD\n");
return DSM_VALUE_SRD_DISABLE;
--
2.29.2
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH for v5.11 2/7] iwlwifi: mvm: invalidate IDs of internal stations at mvm start
2021-01-22 12:52 [PATCH for v5.11 0/7] iwlwifi: fixes intended for v5.11 2021-01-22 Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 1/7] iwlwifi: mvm: fix the return type for DSM functions 1 and 2 Luca Coelho
@ 2021-01-22 12:52 ` Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 3/7] iwlwifi: pcie: add rules to match Qu with Hr2 Luca Coelho
` (4 subsequent siblings)
6 siblings, 0 replies; 9+ messages in thread
From: Luca Coelho @ 2021-01-22 12:52 UTC (permalink / raw)
To: kvalo; +Cc: linux-wireless
From: Gregory Greenman <gregory.greenman@intel.com>
Having sta_id not set for aux_sta and snif_sta can potentially lead to a
hard to debug issue in case remove station is called without an add. In
this case sta_id 0, an unrelated regular station, will be removed.
In fact, we do have a FW assert that occures rarely and from the debug
data analysis it looks like sta_id 0 is removed by mistake, though it's
hard to pinpoint the exact flow. The WARN_ON in this patch should help
to find it.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 4 ++++
drivers/net/wireless/intel/iwlwifi/mvm/sta.c | 6 ++++++
2 files changed, 10 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 98f62d78cf9c..03b41d911338 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -791,6 +791,10 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
if (!mvm->scan_cmd)
goto out_free;
+ /* invalidate ids to prevent accidental removal of sta_id 0 */
+ mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
+ mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
+
/* Set EBS as successful as long as not stated otherwise by the FW. */
mvm->last_ebs_successful = true;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index dc174410bf9c..578c353ae02c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -2057,6 +2057,9 @@ int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
lockdep_assert_held(&mvm->mutex);
+ if (WARN_ON_ONCE(mvm->snif_sta.sta_id == IWL_MVM_INVALID_STA))
+ return -EINVAL;
+
iwl_mvm_disable_txq(mvm, NULL, mvm->snif_queue, IWL_MAX_TID_COUNT, 0);
ret = iwl_mvm_rm_sta_common(mvm, mvm->snif_sta.sta_id);
if (ret)
@@ -2071,6 +2074,9 @@ int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm)
lockdep_assert_held(&mvm->mutex);
+ if (WARN_ON_ONCE(mvm->aux_sta.sta_id == IWL_MVM_INVALID_STA))
+ return -EINVAL;
+
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)
--
2.29.2
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH for v5.11 3/7] iwlwifi: pcie: add rules to match Qu with Hr2
2021-01-22 12:52 [PATCH for v5.11 0/7] iwlwifi: fixes intended for v5.11 2021-01-22 Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 1/7] iwlwifi: mvm: fix the return type for DSM functions 1 and 2 Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 2/7] iwlwifi: mvm: invalidate IDs of internal stations at mvm start Luca Coelho
@ 2021-01-22 12:52 ` Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 4/7] iwlwifi: mvm: clear IN_D3 after wowlan status cmd Luca Coelho
` (3 subsequent siblings)
6 siblings, 0 replies; 9+ messages in thread
From: Luca Coelho @ 2021-01-22 12:52 UTC (permalink / raw)
To: kvalo; +Cc: linux-wireless
From: Luca Coelho <luciano.coelho@intel.com>
Until now we have been relying on matching the PCI ID and subsystem
device ID in order to recognize Qu devices with Hr2. Add rules to
match these devices, so that we don't have to add a new rule for every
new ID we get.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
.../net/wireless/intel/iwlwifi/cfg/22000.c | 25 +++++++++++++++++++
.../net/wireless/intel/iwlwifi/iwl-config.h | 3 +++
drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 10 ++++++++
3 files changed, 38 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/22000.c b/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
index 7220fc8fd9b0..8280092066e7 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/22000.c
@@ -314,6 +314,7 @@ const struct iwl_cfg_trans_params iwl_ma_trans_cfg = {
const char iwl_ax101_name[] = "Intel(R) Wi-Fi 6 AX101";
const char iwl_ax200_name[] = "Intel(R) Wi-Fi 6 AX200 160MHz";
const char iwl_ax201_name[] = "Intel(R) Wi-Fi 6 AX201 160MHz";
+const char iwl_ax203_name[] = "Intel(R) Wi-Fi 6 AX203";
const char iwl_ax211_name[] = "Intel(R) Wi-Fi 6 AX211 160MHz";
const char iwl_ax411_name[] = "Intel(R) Wi-Fi 6 AX411 160MHz";
const char iwl_ma_name[] = "Intel(R) Wi-Fi 6";
@@ -340,6 +341,18 @@ const struct iwl_cfg iwl_qu_b0_hr1_b0 = {
.num_rbds = IWL_NUM_RBDS_22000_HE,
};
+const struct iwl_cfg iwl_qu_b0_hr_b0 = {
+ .fw_name_pre = IWL_QU_B_HR_B_FW_PRE,
+ IWL_DEVICE_22500,
+ /*
+ * This device doesn't support receiving BlockAck with a large bitmap
+ * so we need to restrict the size of transmitted aggregation to the
+ * HT size; mac80211 would otherwise pick the HE max (256) by default.
+ */
+ .max_tx_agg_size = IEEE80211_MAX_AMPDU_BUF_HT,
+ .num_rbds = IWL_NUM_RBDS_22000_HE,
+};
+
const struct iwl_cfg iwl_ax201_cfg_qu_hr = {
.name = "Intel(R) Wi-Fi 6 AX201 160MHz",
.fw_name_pre = IWL_QU_B_HR_B_FW_PRE,
@@ -366,6 +379,18 @@ const struct iwl_cfg iwl_qu_c0_hr1_b0 = {
.num_rbds = IWL_NUM_RBDS_22000_HE,
};
+const struct iwl_cfg iwl_qu_c0_hr_b0 = {
+ .fw_name_pre = IWL_QU_C_HR_B_FW_PRE,
+ IWL_DEVICE_22500,
+ /*
+ * This device doesn't support receiving BlockAck with a large bitmap
+ * so we need to restrict the size of transmitted aggregation to the
+ * HT size; mac80211 would otherwise pick the HE max (256) by default.
+ */
+ .max_tx_agg_size = IEEE80211_MAX_AMPDU_BUF_HT,
+ .num_rbds = IWL_NUM_RBDS_22000_HE,
+};
+
const struct iwl_cfg iwl_ax201_cfg_qu_c0_hr_b0 = {
.name = "Intel(R) Wi-Fi 6 AX201 160MHz",
.fw_name_pre = IWL_QU_C_HR_B_FW_PRE,
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-config.h b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
index 27cb0406ba9a..4826f5575dae 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
@@ -491,6 +491,7 @@ extern const char iwl9260_killer_1550_name[];
extern const char iwl9560_killer_1550i_name[];
extern const char iwl9560_killer_1550s_name[];
extern const char iwl_ax200_name[];
+extern const char iwl_ax203_name[];
extern const char iwl_ax201_name[];
extern const char iwl_ax101_name[];
extern const char iwl_ax200_killer_1650w_name[];
@@ -574,6 +575,8 @@ extern const struct iwl_cfg iwl9560_2ac_cfg_soc;
extern const struct iwl_cfg iwl_qu_b0_hr1_b0;
extern const struct iwl_cfg iwl_qu_c0_hr1_b0;
extern const struct iwl_cfg iwl_quz_a0_hr1_b0;
+extern const struct iwl_cfg iwl_qu_b0_hr_b0;
+extern const struct iwl_cfg iwl_qu_c0_hr_b0;
extern const struct iwl_cfg iwl_ax200_cfg_cc;
extern const struct iwl_cfg iwl_ax201_cfg_qu_hr;
extern const struct iwl_cfg iwl_ax201_cfg_qu_hr;
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
index 965982612e74..ed3f5b7aa71e 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c
@@ -910,6 +910,11 @@ static const struct iwl_dev_info iwl_dev_info_table[] = {
IWL_CFG_RF_TYPE_HR1, IWL_CFG_ANY,
IWL_CFG_ANY, IWL_CFG_ANY,
iwl_qu_b0_hr1_b0, iwl_ax101_name),
+ _IWL_DEV_INFO(IWL_CFG_ANY, IWL_CFG_ANY,
+ IWL_CFG_MAC_TYPE_QU, SILICON_C_STEP,
+ IWL_CFG_RF_TYPE_HR2, IWL_CFG_ANY,
+ IWL_CFG_ANY, IWL_CFG_ANY,
+ iwl_qu_b0_hr_b0, iwl_ax203_name),
/* Qu C step */
_IWL_DEV_INFO(IWL_CFG_ANY, IWL_CFG_ANY,
@@ -917,6 +922,11 @@ static const struct iwl_dev_info iwl_dev_info_table[] = {
IWL_CFG_RF_TYPE_HR1, IWL_CFG_ANY,
IWL_CFG_ANY, IWL_CFG_ANY,
iwl_qu_c0_hr1_b0, iwl_ax101_name),
+ _IWL_DEV_INFO(IWL_CFG_ANY, IWL_CFG_ANY,
+ IWL_CFG_MAC_TYPE_QU, SILICON_C_STEP,
+ IWL_CFG_RF_TYPE_HR2, IWL_CFG_ANY,
+ IWL_CFG_ANY, IWL_CFG_ANY,
+ iwl_qu_c0_hr_b0, iwl_ax203_name),
/* QuZ */
_IWL_DEV_INFO(IWL_CFG_ANY, IWL_CFG_ANY,
--
2.29.2
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH for v5.11 4/7] iwlwifi: mvm: clear IN_D3 after wowlan status cmd
2021-01-22 12:52 [PATCH for v5.11 0/7] iwlwifi: fixes intended for v5.11 2021-01-22 Luca Coelho
` (2 preceding siblings ...)
2021-01-22 12:52 ` [PATCH for v5.11 3/7] iwlwifi: pcie: add rules to match Qu with Hr2 Luca Coelho
@ 2021-01-22 12:52 ` Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 5/7] iwlwifi: Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit Luca Coelho
` (2 subsequent siblings)
6 siblings, 0 replies; 9+ messages in thread
From: Luca Coelho @ 2021-01-22 12:52 UTC (permalink / raw)
To: kvalo; +Cc: linux-wireless
From: Shaul Triebitz <shaul.triebitz@intel.com>
In D3 resume flow, avoid the following race where sending
packets before updating the sequence number (sequence
number received from the wowlan status command response):
Thread 1:
__iwl_mvm_resume clears IWL_MVM_STATUS_IN_D3 and is cut
by thread 2 before reaching iwl_mvm_query_wakeup_reasons.
Thread 2:
iwl_mvm_mac_itxq_xmit calls iwl_mvm_tx_skb since
IWL_MVM_STATUS_IN_D3 is not set using a wrong sequence number.
Thread 1:
__iwl_mvm_resume continues and calls iwl_mvm_query_wakeup_reasons
updating the sequence number received from the firmware.
The next packet that will be sent now will cause sysassert 0x1096.
Fix the bug by moving 'clear IWL_MVM_STATUS_IN_D3' to after
sending the wowlan status command and updating the sequence
number.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index c025188fa9bc..df018972a46b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
- * Copyright (C) 2012-2014, 2018-2020 Intel Corporation
+ * Copyright (C) 2012-2014, 2018-2021 Intel Corporation
* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
@@ -2032,8 +2032,6 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
mutex_lock(&mvm->mutex);
- clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
-
/* get the BSS vif pointer again */
vif = iwl_mvm_get_bss_vif(mvm);
if (IS_ERR_OR_NULL(vif))
@@ -2148,6 +2146,8 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
out:
+ clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
+
/* no need to reset the device in unified images, if successful */
if (unified_image && !ret) {
/* nothing else to do if we already sent D0I3_END_CMD */
--
2.29.2
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH for v5.11 5/7] iwlwifi: Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit.
2021-01-22 12:52 [PATCH for v5.11 0/7] iwlwifi: fixes intended for v5.11 2021-01-22 Luca Coelho
` (3 preceding siblings ...)
2021-01-22 12:52 ` [PATCH for v5.11 4/7] iwlwifi: mvm: clear IN_D3 after wowlan status cmd Luca Coelho
@ 2021-01-22 12:52 ` Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 6/7] iwlwifi: mvm: guard against device removal in reprobe Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 7/7] iwlwifi: queue: bail out on invalid freeing Luca Coelho
6 siblings, 0 replies; 9+ messages in thread
From: Luca Coelho @ 2021-01-22 12:52 UTC (permalink / raw)
To: kvalo; +Cc: linux-wireless
From: Matti Gottlieb <matti.gottlieb@intel.com>
The bit that indicates if the device supports 160MHZ
is bit #9. The macro checks bit #8.
Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit.
Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Fixes: d6f2134a3831 ("iwlwifi: add mac/rf types and 160MHz to the device tables")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
drivers/net/wireless/intel/iwlwifi/iwl-config.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-config.h b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
index 4826f5575dae..86e1d57df65e 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
- * Copyright (C) 2005-2014, 2018-2020 Intel Corporation
+ * Copyright (C) 2005-2014, 2018-2021 Intel Corporation
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
#ifndef __IWL_CONFIG_H__
@@ -445,7 +445,7 @@ struct iwl_cfg {
#define IWL_CFG_CORES_BT_GNSS 0x5
#define IWL_SUBDEVICE_RF_ID(subdevice) ((u16)((subdevice) & 0x00F0) >> 4)
-#define IWL_SUBDEVICE_NO_160(subdevice) ((u16)((subdevice) & 0x0100) >> 9)
+#define IWL_SUBDEVICE_NO_160(subdevice) ((u16)((subdevice) & 0x0200) >> 9)
#define IWL_SUBDEVICE_CORES(subdevice) ((u16)((subdevice) & 0x1C00) >> 10)
struct iwl_dev_info {
--
2.29.2
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH for v5.11 6/7] iwlwifi: mvm: guard against device removal in reprobe
2021-01-22 12:52 [PATCH for v5.11 0/7] iwlwifi: fixes intended for v5.11 2021-01-22 Luca Coelho
` (4 preceding siblings ...)
2021-01-22 12:52 ` [PATCH for v5.11 5/7] iwlwifi: Fix IWL_SUBDEVICE_NO_160 macro to use the correct bit Luca Coelho
@ 2021-01-22 12:52 ` Luca Coelho
2021-01-22 12:52 ` [PATCH for v5.11 7/7] iwlwifi: queue: bail out on invalid freeing Luca Coelho
6 siblings, 0 replies; 9+ messages in thread
From: Luca Coelho @ 2021-01-22 12:52 UTC (permalink / raw)
To: kvalo; +Cc: linux-wireless
From: Johannes Berg <johannes.berg@intel.com>
If we get into a problem severe enough to attempt a reprobe,
we schedule a worker to do that. However, if the problem gets
more severe and the device is actually destroyed before this
worker has a chance to run, we use a free device. Bump up the
reference count of the device until the worker runs to avoid
this situation.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 03b41d911338..61618f607927 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1209,6 +1209,7 @@ static void iwl_mvm_reprobe_wk(struct work_struct *wk)
reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
if (device_reprobe(reprobe->dev))
dev_err(reprobe->dev, "reprobe failed!\n");
+ put_device(reprobe->dev);
kfree(reprobe);
module_put(THIS_MODULE);
}
@@ -1259,7 +1260,7 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
module_put(THIS_MODULE);
return;
}
- reprobe->dev = mvm->trans->dev;
+ reprobe->dev = get_device(mvm->trans->dev);
INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
schedule_work(&reprobe->work);
} else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
--
2.29.2
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH for v5.11 7/7] iwlwifi: queue: bail out on invalid freeing
2021-01-22 12:52 [PATCH for v5.11 0/7] iwlwifi: fixes intended for v5.11 2021-01-22 Luca Coelho
` (5 preceding siblings ...)
2021-01-22 12:52 ` [PATCH for v5.11 6/7] iwlwifi: mvm: guard against device removal in reprobe Luca Coelho
@ 2021-01-22 12:52 ` Luca Coelho
6 siblings, 0 replies; 9+ messages in thread
From: Luca Coelho @ 2021-01-22 12:52 UTC (permalink / raw)
To: kvalo; +Cc: linux-wireless
From: Johannes Berg <johannes.berg@intel.com>
If we find an entry without an SKB, we currently continue, but
that will just result in an infinite loop since we won't increment
the read pointer, and will try the same thing over and over again.
Fix this.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
drivers/net/wireless/intel/iwlwifi/queue/tx.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
index 27eea909e32d..794c6d0836ab 100644
--- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c
@@ -841,10 +841,8 @@ void iwl_txq_gen2_unmap(struct iwl_trans *trans, int txq_id)
int idx = iwl_txq_get_cmd_index(txq, txq->read_ptr);
struct sk_buff *skb = txq->entries[idx].skb;
- if (WARN_ON_ONCE(!skb))
- continue;
-
- iwl_txq_free_tso_page(trans, skb);
+ if (!WARN_ON_ONCE(!skb))
+ iwl_txq_free_tso_page(trans, skb);
}
iwl_txq_gen2_free_tfd(trans, txq);
txq->read_ptr = iwl_txq_inc_wrap(trans, txq->read_ptr);
--
2.29.2
^ permalink raw reply related [flat|nested] 9+ messages in thread