diff mbox series

[v4,07/12] wifi: ath12k: Cache vdev configs before vdev create

Message ID 20240312135557.1778379-8-quic_ramess@quicinc.com (mailing list archive)
State Changes Requested
Delegated to: Kalle Valo
Headers show
Series wifi: ath12k: Add single wiphy support | expand

Commit Message

Rameshkumar Sundaram March 12, 2024, 1:55 p.m. UTC
From: Sriram R <quic_srirrama@quicinc.com>

Since the vdev create for a corresponding vif is deferred
until a channel is assigned, cache the information which
are received through mac80211 ops between add_interface()
and assign_vif_chanctx() and set them once the vdev is
created on one of the ath12k radios as the channel gets
assigned via assign_vif_chanctx().

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/core.h |  19 ++++
 drivers/net/wireless/ath/ath12k/mac.c  | 116 +++++++++++++++++++------
 2 files changed, 107 insertions(+), 28 deletions(-)

Comments

Jeff Johnson March 12, 2024, 11:01 p.m. UTC | #1
On 3/12/2024 6:55 AM, Rameshkumar Sundaram wrote:
> From: Sriram R <quic_srirrama@quicinc.com>
> 
> Since the vdev create for a corresponding vif is deferred
> until a channel is assigned, cache the information which
> are received through mac80211 ops between add_interface()
> and assign_vif_chanctx() and set them once the vdev is
> created on one of the ath12k radios as the channel gets
> assigned via assign_vif_chanctx().
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> 
> Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
> Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
> ---
>  drivers/net/wireless/ath/ath12k/core.h |  19 ++++
>  drivers/net/wireless/ath/ath12k/mac.c  | 116 +++++++++++++++++++------
>  2 files changed, 107 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
> index 70daec38d486..fe151aa90687 100644
> --- a/drivers/net/wireless/ath/ath12k/core.h
> +++ b/drivers/net/wireless/ath/ath12k/core.h
> @@ -214,6 +214,24 @@ enum ath12k_monitor_flags {
>  	ATH12K_FLAG_MONITOR_ENABLED,
>  };
>  
> +struct ath12k_tx_conf {
> +	bool changed;
> +	u16 ac;
> +	struct ieee80211_tx_queue_params tx_queue_params;
> +};
> +
> +struct ath12k_key_conf {
> +	bool changed;
> +	enum set_key_cmd cmd;
> +	struct ieee80211_key_conf *key;
> +};
> +
> +struct ath12k_vif_cache {
> +	struct ath12k_tx_conf tx_conf;
> +	struct ath12k_key_conf key_conf;
> +	u32 bss_conf_changed;
> +};
> +
>  struct ath12k_vif {
>  	u32 vdev_id;
>  	enum wmi_vdev_type vdev_type;
> @@ -268,6 +286,7 @@ struct ath12k_vif {
>  	u8 vdev_stats_id;
>  	u32 punct_bitmap;
>  	bool ps;
> +	struct ath12k_vif_cache cache;

is there a reason this isn't a *cache?
this allocation is only needed for the time between when a vdev is created and
when a channel is assigned, so why not have a dynamic allocation that is only
around for that time? otherwise for every vdev you waste this memory for the
lifetime of the vdev.

>  };
>  
>  struct ath12k_vif_iter {
> diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
> index 6d2176b0a556..fab92f08fdb7 100644
> --- a/drivers/net/wireless/ath/ath12k/mac.c
> +++ b/drivers/net/wireless/ath/ath12k/mac.c
> @@ -3021,12 +3021,14 @@ static void ath12k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
>  
>  	ar = ath12k_get_ar_by_vif(hw, vif);
>  
> -	/* TODO if the vdev is not created on a certain radio,
> +	/* if the vdev is not created on a certain radio,
>  	 * cache the info to be updated later on vdev creation
>  	 */
>  
> -	if (!ar)
> +	if (!ar) {
> +		arvif->cache.bss_conf_changed |= changed;

why don't you need to save the actual *info as well?

>  		return;
> +	}
>  
>  	mutex_lock(&ar->conf_mutex);
>  
> @@ -3517,12 +3519,11 @@ static int ath12k_clear_peer_keys(struct ath12k_vif *arvif,
>  	return first_errno;
>  }
>  
> -static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
> -				 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
> -				 struct ieee80211_key_conf *key)
> +static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
> +			      struct ieee80211_vif *vif, struct ieee80211_sta *sta,
> +			      struct ieee80211_key_conf *key)
>  {
> -	struct ath12k *ar;
> -	struct ath12k_base *ab;
> +	struct ath12k_base *ab = ar->ab;
>  	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
>  	struct ath12k_peer *peer;
>  	struct ath12k_sta *arsta;
> @@ -3530,28 +3531,11 @@ static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
>  	int ret = 0;
>  	u32 flags = 0;
>  
> -	/* BIP needs to be done in software */
> -	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
> -	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
> -	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
> -	    key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
> -		return 1;
> -
> -	ar = ath12k_get_ar_by_vif(hw, vif);
> -	if (!ar) {
> -		WARN_ON_ONCE(1);
> -		return -EINVAL;
> -	}
> -	ab = ar->ab;
> +	lockdep_assert_held(&ar->conf_mutex);
>  
> -	if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ar->ab->dev_flags))
> +	if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags))
>  		return 1;
>  
> -	if (key->keyidx > WMI_MAX_KEY_INDEX)
> -		return -ENOSPC;
> -
> -	mutex_lock(&ar->conf_mutex);
> -
>  	if (sta)
>  		peer_addr = sta->addr;
>  	else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
> @@ -3643,6 +3627,43 @@ static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
>  	spin_unlock_bh(&ab->base_lock);
>  
>  exit:
> +	return ret;
> +}
> +
> +
> +static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
> +				 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
> +				 struct ieee80211_key_conf *key)
> +{
> +	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
> +	struct ath12k *ar;
> +	int ret;
> +
> +	/* BIP needs to be done in software */
> +	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
> +	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
> +	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
> +	    key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
> +		return 1;
> +
> +	if (key->keyidx > WMI_MAX_KEY_INDEX)
> +		return -ENOSPC;
> +
> +	ar = ath12k_get_ar_by_vif(hw, vif);
> +	if (!ar) {
> +		/* ar is expected to be valid when sta ptr is available */
> +		if (sta) {
> +			WARN_ON_ONCE(1);
> +			return -EINVAL;
> +		}
> +		arvif->cache.key_conf.cmd = cmd;
> +		arvif->cache.key_conf.key = key;
> +		arvif->cache.key_conf.changed = true;
> +		return 0;
> +	}
> +
> +	mutex_lock(&ar->conf_mutex);
> +	ret = ath12k_mac_set_key(ar, cmd, vif, sta, key);
>  	mutex_unlock(&ar->conf_mutex);
>  	return ret;
>  }
> @@ -4477,7 +4498,10 @@ static int ath12k_mac_op_conf_tx(struct ieee80211_hw *hw,
>  
>  	ar = ath12k_get_ar_by_vif(hw, vif);
>  	if (!ar) {
> -		/* TODO cache the info and apply after vdev is created */
> +		/* cache the info and apply after vdev is created */
> +		arvif->cache.tx_conf.changed = true;
> +		arvif->cache.tx_conf.ac = ac;
> +		arvif->cache.tx_conf.tx_queue_params = *params;
>  		return -EINVAL;
>  	}
>  
> @@ -6121,6 +6145,41 @@ static int ath12k_mac_vdev_create(struct ath12k *ar, struct ieee80211_vif *vif)
>  	return ret;
>  }
>  
> +static void ath12k_mac_vif_cache_flush(struct ath12k *ar,  struct ieee80211_vif *vif)
> +{
> +	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
> +	struct ath12k_base *ab = ar->ab;
> +	int ret;
> +
> +	lockdep_assert_held(&ar->conf_mutex);
> +
> +	if (arvif->cache.tx_conf.changed) {
> +		ret = ath12k_mac_conf_tx(arvif, 0, arvif->cache.tx_conf.ac,
> +					 &arvif->cache.tx_conf.tx_queue_params);
> +		if (ret)
> +			ath12k_warn(ab,
> +				    "unable to apply tx config parameters to vdev %d\n",
> +				    ret);
> +	}
> +
> +	if (arvif->cache.bss_conf_changed)
> +		ath12k_mac_bss_info_changed(ar, arvif, &vif->bss_conf,
> +					    arvif->cache.bss_conf_changed);
> +
> +	if (arvif->cache.key_conf.changed) {
> +		ret = ath12k_mac_set_key(ar, arvif->cache.key_conf.cmd,
> +					 vif, NULL,
> +					 arvif->cache.key_conf.key);
> +		if (ret) {
> +			WARN_ON_ONCE(1);
> +			ath12k_warn(ab, "unable to apply set key param to vdev %d ret %d\n",
> +				    arvif->vdev_id, ret);
> +		}
> +	}
> +
> +	memset(&arvif->cache, 0, sizeof(struct ath12k_vif_cache));

sizeof(arvif->cache)

> +}
> +
>  static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
>  						    struct ieee80211_vif *vif,
>  						    struct ieee80211_chanctx_conf *ctx)
> @@ -6203,10 +6262,11 @@ static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
>  		goto unlock;
>  	}
>  
> -	/* TODO If the vdev is created during channel assign and not during
> +	/* If the vdev is created during channel assign and not during
>  	 * add_interface(), Apply any parameters for the vdev which were received
>  	 * after add_interface, corresponding to this vif.
>  	 */
> +	ath12k_mac_vif_cache_flush(ar, vif);
>  unlock:
>  	mutex_unlock(&ar->conf_mutex);
>  out:
Rameshkumar Sundaram March 19, 2024, 4:12 p.m. UTC | #2
On 3/13/2024 4:31 AM, Jeff Johnson wrote:
> On 3/12/2024 6:55 AM, Rameshkumar Sundaram wrote:
>> From: Sriram R <quic_srirrama@quicinc.com>
>>
>> Since the vdev create for a corresponding vif is deferred
>> until a channel is assigned, cache the information which
>> are received through mac80211 ops between add_interface()
>> and assign_vif_chanctx() and set them once the vdev is
>> created on one of the ath12k radios as the channel gets
>> assigned via assign_vif_chanctx().
>>
>> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
>> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>>
>> Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
>> Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
>> ---
>>   drivers/net/wireless/ath/ath12k/core.h |  19 ++++
>>   drivers/net/wireless/ath/ath12k/mac.c  | 116 +++++++++++++++++++------
>>   2 files changed, 107 insertions(+), 28 deletions(-)
>>
>> diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
>> index 70daec38d486..fe151aa90687 100644
>> --- a/drivers/net/wireless/ath/ath12k/core.h
>> +++ b/drivers/net/wireless/ath/ath12k/core.h
>> @@ -214,6 +214,24 @@ enum ath12k_monitor_flags {
>>   	ATH12K_FLAG_MONITOR_ENABLED,
>>   };
>>   
>> +struct ath12k_tx_conf {
>> +	bool changed;
>> +	u16 ac;
>> +	struct ieee80211_tx_queue_params tx_queue_params;
>> +};
>> +
>> +struct ath12k_key_conf {
>> +	bool changed;
>> +	enum set_key_cmd cmd;
>> +	struct ieee80211_key_conf *key;
>> +};
>> +
>> +struct ath12k_vif_cache {
>> +	struct ath12k_tx_conf tx_conf;
>> +	struct ath12k_key_conf key_conf;
>> +	u32 bss_conf_changed;
>> +};
>> +
>>   struct ath12k_vif {
>>   	u32 vdev_id;
>>   	enum wmi_vdev_type vdev_type;
>> @@ -268,6 +286,7 @@ struct ath12k_vif {
>>   	u8 vdev_stats_id;
>>   	u32 punct_bitmap;
>>   	bool ps;
>> +	struct ath12k_vif_cache cache;
> 
> is there a reason this isn't a *cache?
> this allocation is only needed for the time between when a vdev is created and
> when a channel is assigned, so why not have a dynamic allocation that is only
> around for that time? otherwise for every vdev you waste this memory for the
> lifetime of the vdev.
> 
There is no specific reason behind it.
Your point makes sense, we need not have this for lifetime of the vdev. 
Shall we have cache as such and have *tx_conf and *key_conf as 
dynamically allocated members ?
That way we can allocate them whenever corresponding config is received 
and have it in cache.
>>   };
>>   
>>   struct ath12k_vif_iter {
>> diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
>> index 6d2176b0a556..fab92f08fdb7 100644
>> --- a/drivers/net/wireless/ath/ath12k/mac.c
>> +++ b/drivers/net/wireless/ath/ath12k/mac.c
>> @@ -3021,12 +3021,14 @@ static void ath12k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
>>   
>>   	ar = ath12k_get_ar_by_vif(hw, vif);
>>   
>> -	/* TODO if the vdev is not created on a certain radio,
>> +	/* if the vdev is not created on a certain radio,
>>   	 * cache the info to be updated later on vdev creation
>>   	 */
>>   
>> -	if (!ar)
>> +	if (!ar) {
>> +		arvif->cache.bss_conf_changed |= changed;
> 
> why don't you need to save the actual *info as well?
> 
info(ieee80211_bss_conf) can be obtained from arvif->vif(ieee80211_vif) 
whenever needed.
>>   		return;
>> +	}
>>   
>>   	mutex_lock(&ar->conf_mutex);
>>   
>> @@ -3517,12 +3519,11 @@ static int ath12k_clear_peer_keys(struct ath12k_vif *arvif,
>>   	return first_errno;
>>   }
>>   
>> -static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
>> -				 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
>> -				 struct ieee80211_key_conf *key)
>> +static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
>> +			      struct ieee80211_vif *vif, struct ieee80211_sta *sta,
>> +			      struct ieee80211_key_conf *key)
>>   {
>> -	struct ath12k *ar;
>> -	struct ath12k_base *ab;
>> +	struct ath12k_base *ab = ar->ab;
>>   	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
>>   	struct ath12k_peer *peer;
>>   	struct ath12k_sta *arsta;
>> @@ -3530,28 +3531,11 @@ static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
>>   	int ret = 0;
>>   	u32 flags = 0;
>>   
>> -	/* BIP needs to be done in software */
>> -	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
>> -	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
>> -	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
>> -	    key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
>> -		return 1;
>> -
>> -	ar = ath12k_get_ar_by_vif(hw, vif);
>> -	if (!ar) {
>> -		WARN_ON_ONCE(1);
>> -		return -EINVAL;
>> -	}
>> -	ab = ar->ab;
>> +	lockdep_assert_held(&ar->conf_mutex);
>>   
>> -	if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ar->ab->dev_flags))
>> +	if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags))
>>   		return 1;
>>   
>> -	if (key->keyidx > WMI_MAX_KEY_INDEX)
>> -		return -ENOSPC;
>> -
>> -	mutex_lock(&ar->conf_mutex);
>> -
>>   	if (sta)
>>   		peer_addr = sta->addr;
>>   	else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
>> @@ -3643,6 +3627,43 @@ static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
>>   	spin_unlock_bh(&ab->base_lock);
>>   
>>   exit:
>> +	return ret;
>> +}
>> +
>> +
>> +static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
>> +				 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
>> +				 struct ieee80211_key_conf *key)
>> +{
>> +	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
>> +	struct ath12k *ar;
>> +	int ret;
>> +
>> +	/* BIP needs to be done in software */
>> +	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
>> +	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
>> +	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
>> +	    key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
>> +		return 1;
>> +
>> +	if (key->keyidx > WMI_MAX_KEY_INDEX)
>> +		return -ENOSPC;
>> +
>> +	ar = ath12k_get_ar_by_vif(hw, vif);
>> +	if (!ar) {
>> +		/* ar is expected to be valid when sta ptr is available */
>> +		if (sta) {
>> +			WARN_ON_ONCE(1);
>> +			return -EINVAL;
>> +		}
>> +		arvif->cache.key_conf.cmd = cmd;
>> +		arvif->cache.key_conf.key = key;
>> +		arvif->cache.key_conf.changed = true;
>> +		return 0;
>> +	}
>> +
>> +	mutex_lock(&ar->conf_mutex);
>> +	ret = ath12k_mac_set_key(ar, cmd, vif, sta, key);
>>   	mutex_unlock(&ar->conf_mutex);
>>   	return ret;
>>   }
>> @@ -4477,7 +4498,10 @@ static int ath12k_mac_op_conf_tx(struct ieee80211_hw *hw,
>>   
>>   	ar = ath12k_get_ar_by_vif(hw, vif);
>>   	if (!ar) {
>> -		/* TODO cache the info and apply after vdev is created */
>> +		/* cache the info and apply after vdev is created */
>> +		arvif->cache.tx_conf.changed = true;
>> +		arvif->cache.tx_conf.ac = ac;
>> +		arvif->cache.tx_conf.tx_queue_params = *params;
>>   		return -EINVAL;
>>   	}
>>   
>> @@ -6121,6 +6145,41 @@ static int ath12k_mac_vdev_create(struct ath12k *ar, struct ieee80211_vif *vif)
>>   	return ret;
>>   }
>>   
>> +static void ath12k_mac_vif_cache_flush(struct ath12k *ar,  struct ieee80211_vif *vif)
>> +{
>> +	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
>> +	struct ath12k_base *ab = ar->ab;
>> +	int ret;
>> +
>> +	lockdep_assert_held(&ar->conf_mutex);
>> +
>> +	if (arvif->cache.tx_conf.changed) {
>> +		ret = ath12k_mac_conf_tx(arvif, 0, arvif->cache.tx_conf.ac,
>> +					 &arvif->cache.tx_conf.tx_queue_params);
>> +		if (ret)
>> +			ath12k_warn(ab,
>> +				    "unable to apply tx config parameters to vdev %d\n",
>> +				    ret);
>> +	}
>> +
>> +	if (arvif->cache.bss_conf_changed)
>> +		ath12k_mac_bss_info_changed(ar, arvif, &vif->bss_conf,
>> +					    arvif->cache.bss_conf_changed);
>> +
>> +	if (arvif->cache.key_conf.changed) {
>> +		ret = ath12k_mac_set_key(ar, arvif->cache.key_conf.cmd,
>> +					 vif, NULL,
>> +					 arvif->cache.key_conf.key);
>> +		if (ret) {
>> +			WARN_ON_ONCE(1);
>> +			ath12k_warn(ab, "unable to apply set key param to vdev %d ret %d\n",
>> +				    arvif->vdev_id, ret);
>> +		}
>> +	}
>> +
>> +	memset(&arvif->cache, 0, sizeof(struct ath12k_vif_cache));
> 
> sizeof(arvif->cache)
> 
>> +}
>> +
>>   static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
>>   						    struct ieee80211_vif *vif,
>>   						    struct ieee80211_chanctx_conf *ctx)
>> @@ -6203,10 +6262,11 @@ static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
>>   		goto unlock;
>>   	}
>>   
>> -	/* TODO If the vdev is created during channel assign and not during
>> +	/* If the vdev is created during channel assign and not during
>>   	 * add_interface(), Apply any parameters for the vdev which were received
>>   	 * after add_interface, corresponding to this vif.
>>   	 */
>> +	ath12k_mac_vif_cache_flush(ar, vif);
>>   unlock:
>>   	mutex_unlock(&ar->conf_mutex);
>>   out:
>
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index 70daec38d486..fe151aa90687 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -214,6 +214,24 @@  enum ath12k_monitor_flags {
 	ATH12K_FLAG_MONITOR_ENABLED,
 };
 
+struct ath12k_tx_conf {
+	bool changed;
+	u16 ac;
+	struct ieee80211_tx_queue_params tx_queue_params;
+};
+
+struct ath12k_key_conf {
+	bool changed;
+	enum set_key_cmd cmd;
+	struct ieee80211_key_conf *key;
+};
+
+struct ath12k_vif_cache {
+	struct ath12k_tx_conf tx_conf;
+	struct ath12k_key_conf key_conf;
+	u32 bss_conf_changed;
+};
+
 struct ath12k_vif {
 	u32 vdev_id;
 	enum wmi_vdev_type vdev_type;
@@ -268,6 +286,7 @@  struct ath12k_vif {
 	u8 vdev_stats_id;
 	u32 punct_bitmap;
 	bool ps;
+	struct ath12k_vif_cache cache;
 };
 
 struct ath12k_vif_iter {
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 6d2176b0a556..fab92f08fdb7 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -3021,12 +3021,14 @@  static void ath12k_mac_op_bss_info_changed(struct ieee80211_hw *hw,
 
 	ar = ath12k_get_ar_by_vif(hw, vif);
 
-	/* TODO if the vdev is not created on a certain radio,
+	/* if the vdev is not created on a certain radio,
 	 * cache the info to be updated later on vdev creation
 	 */
 
-	if (!ar)
+	if (!ar) {
+		arvif->cache.bss_conf_changed |= changed;
 		return;
+	}
 
 	mutex_lock(&ar->conf_mutex);
 
@@ -3517,12 +3519,11 @@  static int ath12k_clear_peer_keys(struct ath12k_vif *arvif,
 	return first_errno;
 }
 
-static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
-				 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
-				 struct ieee80211_key_conf *key)
+static int ath12k_mac_set_key(struct ath12k *ar, enum set_key_cmd cmd,
+			      struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+			      struct ieee80211_key_conf *key)
 {
-	struct ath12k *ar;
-	struct ath12k_base *ab;
+	struct ath12k_base *ab = ar->ab;
 	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
 	struct ath12k_peer *peer;
 	struct ath12k_sta *arsta;
@@ -3530,28 +3531,11 @@  static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	int ret = 0;
 	u32 flags = 0;
 
-	/* BIP needs to be done in software */
-	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
-	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
-	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
-	    key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
-		return 1;
-
-	ar = ath12k_get_ar_by_vif(hw, vif);
-	if (!ar) {
-		WARN_ON_ONCE(1);
-		return -EINVAL;
-	}
-	ab = ar->ab;
+	lockdep_assert_held(&ar->conf_mutex);
 
-	if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ar->ab->dev_flags))
+	if (test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags))
 		return 1;
 
-	if (key->keyidx > WMI_MAX_KEY_INDEX)
-		return -ENOSPC;
-
-	mutex_lock(&ar->conf_mutex);
-
 	if (sta)
 		peer_addr = sta->addr;
 	else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
@@ -3643,6 +3627,43 @@  static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	spin_unlock_bh(&ab->base_lock);
 
 exit:
+	return ret;
+}
+
+
+static int ath12k_mac_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+				 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+				 struct ieee80211_key_conf *key)
+{
+	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+	struct ath12k *ar;
+	int ret;
+
+	/* BIP needs to be done in software */
+	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
+	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
+	    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256 ||
+	    key->cipher == WLAN_CIPHER_SUITE_BIP_CMAC_256)
+		return 1;
+
+	if (key->keyidx > WMI_MAX_KEY_INDEX)
+		return -ENOSPC;
+
+	ar = ath12k_get_ar_by_vif(hw, vif);
+	if (!ar) {
+		/* ar is expected to be valid when sta ptr is available */
+		if (sta) {
+			WARN_ON_ONCE(1);
+			return -EINVAL;
+		}
+		arvif->cache.key_conf.cmd = cmd;
+		arvif->cache.key_conf.key = key;
+		arvif->cache.key_conf.changed = true;
+		return 0;
+	}
+
+	mutex_lock(&ar->conf_mutex);
+	ret = ath12k_mac_set_key(ar, cmd, vif, sta, key);
 	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }
@@ -4477,7 +4498,10 @@  static int ath12k_mac_op_conf_tx(struct ieee80211_hw *hw,
 
 	ar = ath12k_get_ar_by_vif(hw, vif);
 	if (!ar) {
-		/* TODO cache the info and apply after vdev is created */
+		/* cache the info and apply after vdev is created */
+		arvif->cache.tx_conf.changed = true;
+		arvif->cache.tx_conf.ac = ac;
+		arvif->cache.tx_conf.tx_queue_params = *params;
 		return -EINVAL;
 	}
 
@@ -6121,6 +6145,41 @@  static int ath12k_mac_vdev_create(struct ath12k *ar, struct ieee80211_vif *vif)
 	return ret;
 }
 
+static void ath12k_mac_vif_cache_flush(struct ath12k *ar,  struct ieee80211_vif *vif)
+{
+	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+	struct ath12k_base *ab = ar->ab;
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (arvif->cache.tx_conf.changed) {
+		ret = ath12k_mac_conf_tx(arvif, 0, arvif->cache.tx_conf.ac,
+					 &arvif->cache.tx_conf.tx_queue_params);
+		if (ret)
+			ath12k_warn(ab,
+				    "unable to apply tx config parameters to vdev %d\n",
+				    ret);
+	}
+
+	if (arvif->cache.bss_conf_changed)
+		ath12k_mac_bss_info_changed(ar, arvif, &vif->bss_conf,
+					    arvif->cache.bss_conf_changed);
+
+	if (arvif->cache.key_conf.changed) {
+		ret = ath12k_mac_set_key(ar, arvif->cache.key_conf.cmd,
+					 vif, NULL,
+					 arvif->cache.key_conf.key);
+		if (ret) {
+			WARN_ON_ONCE(1);
+			ath12k_warn(ab, "unable to apply set key param to vdev %d ret %d\n",
+				    arvif->vdev_id, ret);
+		}
+	}
+
+	memset(&arvif->cache, 0, sizeof(struct ath12k_vif_cache));
+}
+
 static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
 						    struct ieee80211_vif *vif,
 						    struct ieee80211_chanctx_conf *ctx)
@@ -6203,10 +6262,11 @@  static struct ath12k *ath12k_mac_assign_vif_to_vdev(struct ieee80211_hw *hw,
 		goto unlock;
 	}
 
-	/* TODO If the vdev is created during channel assign and not during
+	/* If the vdev is created during channel assign and not during
 	 * add_interface(), Apply any parameters for the vdev which were received
 	 * after add_interface, corresponding to this vif.
 	 */
+	ath12k_mac_vif_cache_flush(ar, vif);
 unlock:
 	mutex_unlock(&ar->conf_mutex);
 out: