[PATCH 0/3] ath11k: Add Mesh mode support

[PATCH 0/3] ath11k: Add Mesh mode support

[Rajkumar Manoharan]

Hi,

Posting initial patches to bring Mesh support to ath11k. There are known
issues which is also captured in first patch.

Known issues:
 - Depends on firmware fix to allow other BSS frames
 - Failed to complete path negotiation in secured mode
 - Target assert while shutting down interface in secured mode

-Rajkumar

Rajkumar Manoharan (3):
  ath11k: enable mesh mode
  ath11k: allow 4 address transmission for mesh packet
  ath11k: remove addition check for PMF

 drivers/net/wireless/ath/ath11k/dp_tx.c |  3 +++
 drivers/net/wireless/ath/ath11k/mac.c   | 19 ++++++++++++++++++-
 drivers/net/wireless/ath/ath11k/wmi.c   | 21 ++++++++++-----------
 drivers/net/wireless/ath/ath11k/wmi.h   | 11 +++++++----
 4 files changed, 38 insertions(+), 16 deletions(-)

-- 
1.9.1


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[PATCH 1/3] ath11k: enable mesh mode

[Rajkumar Manoharan]

Allow Meshpoint configuration from ath11k and advertise MP
support to mac80211. Firmware supports mesh type from
WLAN.HK.2.1.0.1-00113-QCAHKSWPL_SILICONZ-1 onwards. As of now,
only open auth mesh networking is working.

Known issues:
 - Depends on firmware fix to allow other BSS frames
 - Failed to complete path negotiation in secured mode
 - Target assert while shutting down interface in secured mode

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/mac.c | 10 +++++++++-
 drivers/net/wireless/ath/ath11k/wmi.h | 11 +++++++----
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 12a2c4421264..b384395bb08c 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2579,6 +2579,7 @@ static int ath11k_sta_state(struct ieee80211_hw *hw,
 	} else if (old_state == IEEE80211_STA_AUTH &&
 		   new_state == IEEE80211_STA_ASSOC &&
 		   (vif->type == NL80211_IFTYPE_AP ||
+		    vif->type == NL80211_IFTYPE_MESH_POINT ||
 		    vif->type == NL80211_IFTYPE_ADHOC)) {
 		ret = ath11k_station_assoc(ar, vif, sta, false);
 		if (ret)
@@ -2591,6 +2592,7 @@ static int ath11k_sta_state(struct ieee80211_hw *hw,
 	} else if (old_state == IEEE80211_STA_ASSOC &&
 		   new_state == IEEE80211_STA_AUTH &&
 		   (vif->type == NL80211_IFTYPE_AP ||
+		    vif->type == NL80211_IFTYPE_MESH_POINT ||
 		    vif->type == NL80211_IFTYPE_ADHOC)) {
 		ret = ath11k_station_disassoc(ar, vif, sta);
 		if (ret)
@@ -3436,6 +3438,8 @@ static int ath11k_add_interface(struct ieee80211_hw *hw,
 	case NL80211_IFTYPE_STATION:
 		arvif->vdev_type = WMI_VDEV_TYPE_STA;
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
+		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_MESH_11S;
 	case NL80211_IFTYPE_AP:
 		arvif->vdev_type = WMI_VDEV_TYPE_AP;
 		break;
@@ -4702,6 +4706,9 @@ static int ath11k_get_survey(struct ieee80211_hw *hw, int idx,
 	{
 		.max    = 16,
 		.types  = BIT(NL80211_IFTYPE_AP)
+#ifdef CONFIG_MAC80211_MESH
+			| BIT(NL80211_IFTYPE_MESH_POINT)
+#endif
 	},
 };
 
@@ -4820,7 +4827,8 @@ static int ath11k_mac_register(struct ath11k *ar)
 	ar->hw->wiphy->available_antennas_tx = cap->tx_chain_mask;
 
 	ar->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
-					 BIT(NL80211_IFTYPE_AP);
+					 BIT(NL80211_IFTYPE_AP) |
+					 BIT(NL80211_IFTYPE_MESH_POINT);
 
 	ieee80211_hw_set(ar->hw, SIGNAL_DBM);
 	ieee80211_hw_set(ar->hw, SUPPORTS_PS);
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 8102e80506fa..5d20f57fbacc 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -4720,10 +4720,13 @@ enum wmi_vdev_type {
 };
 
 enum wmi_vdev_subtype {
-	WMI_VDEV_SUBTYPE_NONE       = 0,
-	WMI_VDEV_SUBTYPE_P2P_DEVICE = 1,
-	WMI_VDEV_SUBTYPE_P2P_CLIENT = 2,
-	WMI_VDEV_SUBTYPE_P2P_GO     = 3,
+	WMI_VDEV_SUBTYPE_NONE,
+	WMI_VDEV_SUBTYPE_P2P_DEVICE,
+	WMI_VDEV_SUBTYPE_P2P_CLIENT,
+	WMI_VDEV_SUBTYPE_P2P_GO,
+	WMI_VDEV_SUBTYPE_PROXY_STA,
+	WMI_VDEV_SUBTYPE_MESH_NON_11S,
+	WMI_VDEV_SUBTYPE_MESH_11S,
 };
 
 enum wmi_sta_powersave_param {
-- 
1.9.1


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[PATCH 2/3] ath11k: allow 4 address transmission for mesh packet

[Rajkumar Manoharan]

Inform the target to use 4 adressses in 802.11 header for mesh data
by marking the peer is capable of operating in 4 address format.
Also ensure to inform TCL ring that mesh header is pesent in payload.
This will be useful for enabling HW checksumming form mesh packets.

Co-developed-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/dp_tx.c |  3 +++
 drivers/net/wireless/ath/ath11k/mac.c   | 11 +++++++++++
 2 files changed, 14 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c
index 5324c5f514f8..b2807a88df9c 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
@@ -131,7 +131,10 @@ int ath11k_dp_tx(struct ath11k *ar, struct ath11k_vif *arvif,
 			     FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_TCP6_CKSUM_EN, 1);
 	}
 
+	if (ieee80211_vif_is_mesh(arvif->vif))
+		ti.flags1 |= FIELD_PREP(HAL_TCL_DATA_CMD_INFO2_MESH_ENABLE, 1);
 	ti.flags1 |= FIELD_PREP(HAL_TCL_DATA_CMD_INFO2_TID_OVERWRITE, 1);
+
 	ti.tid = ath11k_dp_get_tid(skb);
 
 	switch (ti.encap_type) {
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index b384395bb08c..aea99d9d8d1f 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2550,6 +2550,17 @@ static int ath11k_sta_state(struct ieee80211_hw *hw,
 				goto exit;
 		}
 
+		if (ieee80211_vif_is_mesh(vif)) {
+			ret = ath11k_wmi_set_peer_param(ar, sta->addr,
+							arvif->vdev_id,
+							WMI_PEER_USE_4ADDR, 1);
+			if (ret) {
+				ath11k_warn(ar->ab, "failed to STA %pM 4addr capability: %d\n",
+						sta->addr, ret);
+				goto exit;
+			}
+		}
+
 		ret = ath11k_dp_peer_setup(ar, arvif->vdev_id, sta->addr);
 		if (ret) {
 			ath11k_warn(ar->ab, "failed to setup dp for peer %pM on vdev %i (%d)\n",
-- 
1.9.1


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[PATCH 3/3] ath11k: remove unnecessary check for PMF

[Rajkumar Manoharan]

Firmware delivers mesh group action frame as encrypted payload.
To allow software decryption for these group action frames, rx
status should not be marked as RX_FLAG_DECRYPTED and protected
bit in frame control should not be cleared. Existing robust
management check is enough to handle RX_FLAG_DECRYPTED. Hence
removing unnecessary protected frame validation.

Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index cdacbaea188c..5712ac030419 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -5196,18 +5196,17 @@ void ath11k_mgmt_rx_event(struct ath11k_base *ab, struct sk_buff *skb)
 	 */
 	status->flag |= RX_FLAG_SKIP_MONITOR;
 
-	if (ieee80211_has_protected(hdr->frame_control)) {
-		/* In case of PMF, FW delivers decrypted frames
-		 * with Protected Bit set. Don't clear that.
-		 */
-		if (!ieee80211_is_robust_mgmt_frame(skb))  {
-			status->flag |= RX_FLAG_DECRYPTED;
+	/* In case of PMF, FW delivers decrypted frames with Protected Bit set.
+	 * Don't clear that. FW also delivers broadcast management frames
+	 * (ex: group privacy action frames in mesh) as encrypted payload.
+	 */
+	if (!ieee80211_is_robust_mgmt_frame(skb))  {
+		status->flag |= RX_FLAG_DECRYPTED;
 
-			status->flag |= RX_FLAG_IV_STRIPPED |
-					RX_FLAG_MMIC_STRIPPED;
-			hdr->frame_control = __cpu_to_le16(fc &
-					~IEEE80211_FCTL_PROTECTED);
-		}
+		status->flag |= RX_FLAG_IV_STRIPPED |
+			RX_FLAG_MMIC_STRIPPED;
+		hdr->frame_control = __cpu_to_le16(fc &
+				~IEEE80211_FCTL_PROTECTED);
 	}
 
 	/* TODO: Pending handle beacon implementation
-- 
1.9.1


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Re: [PATCH 1/3] ath11k: enable mesh mode

[John Crispin]

On 17/04/2019 11:29, Rajkumar Manoharan wrote:
> Allow Meshpoint configuration from ath11k and advertise MP
> support to mac80211. Firmware supports mesh type from
> WLAN.HK.2.1.0.1-00113-QCAHKSWPL_SILICONZ-1 onwards. As of now,
> only open auth mesh networking is working.
>
> Known issues:
>   - Depends on firmware fix to allow other BSS frames
>   - Failed to complete path negotiation in secured mode
>   - Target assert while shutting down interface in secured mode
>
> Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org>
> ---
>   drivers/net/wireless/ath/ath11k/mac.c | 10 +++++++++-
>   drivers/net/wireless/ath/ath11k/wmi.h | 11 +++++++----
>   2 files changed, 16 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
> index 12a2c4421264..b384395bb08c 100644
> --- a/drivers/net/wireless/ath/ath11k/mac.c
> +++ b/drivers/net/wireless/ath/ath11k/mac.c
> @@ -2579,6 +2579,7 @@ static int ath11k_sta_state(struct ieee80211_hw *hw,
>   	} else if (old_state == IEEE80211_STA_AUTH &&
>   		   new_state == IEEE80211_STA_ASSOC &&
>   		   (vif->type == NL80211_IFTYPE_AP ||
> +		    vif->type == NL80211_IFTYPE_MESH_POINT ||
>   		    vif->type == NL80211_IFTYPE_ADHOC)) {
>   		ret = ath11k_station_assoc(ar, vif, sta, false);
>   		if (ret)
> @@ -2591,6 +2592,7 @@ static int ath11k_sta_state(struct ieee80211_hw *hw,
>   	} else if (old_state == IEEE80211_STA_ASSOC &&
>   		   new_state == IEEE80211_STA_AUTH &&
>   		   (vif->type == NL80211_IFTYPE_AP ||
> +		    vif->type == NL80211_IFTYPE_MESH_POINT ||
>   		    vif->type == NL80211_IFTYPE_ADHOC)) {
>   		ret = ath11k_station_disassoc(ar, vif, sta);
>   		if (ret)
> @@ -3436,6 +3438,8 @@ static int ath11k_add_interface(struct ieee80211_hw *hw,
>   	case NL80211_IFTYPE_STATION:
>   		arvif->vdev_type = WMI_VDEV_TYPE_STA;
>   		break;
> +	case NL80211_IFTYPE_MESH_POINT:
> +		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_MESH_11S;

there should be a comment here that the drop is intentional

     John



>   	case NL80211_IFTYPE_AP:
>   		arvif->vdev_type = WMI_VDEV_TYPE_AP;
>   		break;
> @@ -4702,6 +4706,9 @@ static int ath11k_get_survey(struct ieee80211_hw *hw, int idx,
>   	{
>   		.max    = 16,
>   		.types  = BIT(NL80211_IFTYPE_AP)
> +#ifdef CONFIG_MAC80211_MESH
> +			| BIT(NL80211_IFTYPE_MESH_POINT)
> +#endif
>   	},
>   };
>   
> @@ -4820,7 +4827,8 @@ static int ath11k_mac_register(struct ath11k *ar)
>   	ar->hw->wiphy->available_antennas_tx = cap->tx_chain_mask;
>   
>   	ar->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
> -					 BIT(NL80211_IFTYPE_AP);
> +					 BIT(NL80211_IFTYPE_AP) |
> +					 BIT(NL80211_IFTYPE_MESH_POINT);
>   
>   	ieee80211_hw_set(ar->hw, SIGNAL_DBM);
>   	ieee80211_hw_set(ar->hw, SUPPORTS_PS);
> diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
> index 8102e80506fa..5d20f57fbacc 100644
> --- a/drivers/net/wireless/ath/ath11k/wmi.h
> +++ b/drivers/net/wireless/ath/ath11k/wmi.h
> @@ -4720,10 +4720,13 @@ enum wmi_vdev_type {
>   };
>   
>   enum wmi_vdev_subtype {
> -	WMI_VDEV_SUBTYPE_NONE       = 0,
> -	WMI_VDEV_SUBTYPE_P2P_DEVICE = 1,
> -	WMI_VDEV_SUBTYPE_P2P_CLIENT = 2,
> -	WMI_VDEV_SUBTYPE_P2P_GO     = 3,
> +	WMI_VDEV_SUBTYPE_NONE,
> +	WMI_VDEV_SUBTYPE_P2P_DEVICE,
> +	WMI_VDEV_SUBTYPE_P2P_CLIENT,
> +	WMI_VDEV_SUBTYPE_P2P_GO,
> +	WMI_VDEV_SUBTYPE_PROXY_STA,
> +	WMI_VDEV_SUBTYPE_MESH_NON_11S,
> +	WMI_VDEV_SUBTYPE_MESH_11S,
>   };
>   
>   enum wmi_sta_powersave_param {

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Re: [PATCH 2/3] ath11k: allow 4 address transmission for mesh packet

[John Crispin]

On 17/04/2019 11:29, Rajkumar Manoharan wrote:
> diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
> index b384395bb08c..aea99d9d8d1f 100644
> --- a/drivers/net/wireless/ath/ath11k/mac.c
> +++ b/drivers/net/wireless/ath/ath11k/mac.c
> @@ -2550,6 +2550,17 @@ static int ath11k_sta_state(struct ieee80211_hw *hw,
>   				goto exit;
>   		}
>   
> +		if (ieee80211_vif_is_mesh(vif)) {
> +			ret = ath11k_wmi_set_peer_param(ar, sta->addr,
> +							arvif->vdev_id,
> +							WMI_PEER_USE_4ADDR, 1);
> +			if (ret) {
> +				ath11k_warn(ar->ab, "failed to STA %pM 4addr capability: %d\n",
> +						sta->addr, ret);

Hi,

looks like the indentation is bad here

     John



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Re: [PATCH 1/3] ath11k: enable mesh mode

[Rajkumar Manoharan]

On 2019-04-17 02:56, John Crispin wrote:
> On 17/04/2019 11:29, Rajkumar Manoharan wrote:
> 
>> @@ -3436,6 +3438,8 @@ static int ath11k_add_interface(struct 
>> ieee80211_hw *hw,
>>   	case NL80211_IFTYPE_STATION:
>>   		arvif->vdev_type = WMI_VDEV_TYPE_STA;
>>   		break;
>> +	case NL80211_IFTYPE_MESH_POINT:
>> +		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_MESH_11S;
> 
> there should be a comment here that the drop is intentional
> 
Hmm.. Agree to have fall through comment.

-Rajkumar

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Re: [PATCH 2/3] ath11k: allow 4 address transmission for mesh packet

[Rajkumar Manoharan]

On 2019-04-17 02:57, John Crispin wrote:
> On 17/04/2019 11:29, Rajkumar Manoharan wrote:
>> diff --git a/drivers/net/wireless/ath/ath11k/mac.c 
>> b/drivers/net/wireless/ath/ath11k/mac.c
>> index b384395bb08c..aea99d9d8d1f 100644
>> --- a/drivers/net/wireless/ath/ath11k/mac.c
>> +++ b/drivers/net/wireless/ath/ath11k/mac.c
>> @@ -2550,6 +2550,17 @@ static int ath11k_sta_state(struct ieee80211_hw 
>> *hw,
>>   				goto exit;
>>   		}
>>   +		if (ieee80211_vif_is_mesh(vif)) {
>> +			ret = ath11k_wmi_set_peer_param(ar, sta->addr,
>> +							arvif->vdev_id,
>> +							WMI_PEER_USE_4ADDR, 1);
>> +			if (ret) {
>> +				ath11k_warn(ar->ab, "failed to STA %pM 4addr capability: %d\n",
>> +						sta->addr, ret);
> 
> Hi,
> 
> looks like the indentation is bad here
> 
John,

I don't see the indentation issue from patch and no warning in 
checkpatch.

-Rajkumar

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