[PATCH v3 00/10] wifi: ath12k: P2P support for WCN7850

[PATCH v3 00/10] wifi: ath12k: P2P support for WCN7850

[Kang Yang]

Add P2P support for WCN7850.

Kang Yang (10):
  wifi: ath12k: change interface combination for P2P mode
  wifi: ath12k: add P2P IE in beacon template
  wifi: ath12k: implement handling of P2P NoA event
  wifi: ath12k: implement remain on channel for P2P mode
  wifi: ath12k: change WLAN_SCAN_PARAMS_MAX_IE_LEN from 256 to 512
  wifi: ath12k: allow specific mgmt frame tx while vdev is not up
  wifi: ath12k: fix broken structure wmi_vdev_create_cmd
  wifi: ath12k: move peer delete after vdev stop of station for WCN7850
  wifi: ath12k: designating channel frequency for ROC scan
  wifi: ath12k: advertise P2P dev support for WCN7850

v3: rebase on new ath-tag, use ath12k_ah_to_ar() get ar(Karthikeyan).
v2:
    1. add Tested-on tag of QCN9274.
    2. update copyright in patch #1, #2, #4 and #10.

 drivers/net/wireless/ath/ath12k/Makefile |   3 +-
 drivers/net/wireless/ath/ath12k/core.c   |   1 +
 drivers/net/wireless/ath/ath12k/hw.c     |   7 +-
 drivers/net/wireless/ath/ath12k/mac.c    | 366 +++++++++++++++++++----
 drivers/net/wireless/ath/ath12k/p2p.c    | 142 +++++++++
 drivers/net/wireless/ath/ath12k/p2p.h    |  23 ++
 drivers/net/wireless/ath/ath12k/wmi.c    | 116 ++++++-
 drivers/net/wireless/ath/ath12k/wmi.h    |  50 +++-
 8 files changed, 643 insertions(+), 65 deletions(-)
 create mode 100644 drivers/net/wireless/ath/ath12k/p2p.c
 create mode 100644 drivers/net/wireless/ath/ath12k/p2p.h


base-commit: 8ff464a183f92836d7fd99edceef50a89d8ea797
-- 
2.34.1

[PATCH v3 01/10] wifi: ath12k: change interface combination for P2P mode

[Kang Yang]

Current interface combination doesn't support P2P mode. Change the
combination for P2P mode.

Also, there is a bug that when mesh is enabled but ap is not enabled.
In this situation, the mesh's max_interface of interface combination
won't be set.

So assign the max_interfaces for mesh directly.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: rebase on new ath-tag.
v2: 
    1. add Tested-on tag of QCN9274.
    2. update copyright.

---
 drivers/net/wireless/ath/ath12k/mac.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index fe600dbef875..4751bfeaf46f 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -7479,9 +7479,10 @@ static int ath12k_mac_setup_iface_combinations(struct ath12k_hw *ah)
 	struct ieee80211_iface_combination *combinations;
 	struct ieee80211_iface_limit *limits;
 	int n_limits, max_interfaces;
-	bool ap, mesh;
+	bool ap, mesh, p2p;
 
 	ap = ath12k_mac_is_iface_mode_enable(ah, NL80211_IFTYPE_AP);
+	p2p = ath12k_mac_is_iface_mode_enable(ah, NL80211_IFTYPE_P2P_DEVICE);
 
 	mesh = IS_ENABLED(CONFIG_MAC80211_MESH) &&
 		ath12k_mac_is_iface_mode_enable(ah, NL80211_IFTYPE_MESH_POINT);
@@ -7490,9 +7491,15 @@ static int ath12k_mac_setup_iface_combinations(struct ath12k_hw *ah)
 	if (!combinations)
 		return -ENOMEM;
 
-	if (ap || mesh) {
+	if ((ap || mesh) && !p2p) {
 		n_limits = 2;
 		max_interfaces = 16;
+	} else if (p2p) {
+		n_limits = 3;
+		if (ap || mesh)
+			max_interfaces = 16;
+		else
+			max_interfaces = 3;
 	} else {
 		n_limits = 1;
 		max_interfaces = 1;
@@ -7507,14 +7514,22 @@ static int ath12k_mac_setup_iface_combinations(struct ath12k_hw *ah)
 	limits[0].max = 1;
 	limits[0].types |= BIT(NL80211_IFTYPE_STATION);
 
-	if (ap) {
+	if (ap || mesh || p2p)
 		limits[1].max = max_interfaces;
+
+	if (ap)
 		limits[1].types |= BIT(NL80211_IFTYPE_AP);
-	}
 
 	if (mesh)
 		limits[1].types |= BIT(NL80211_IFTYPE_MESH_POINT);
 
+	if (p2p) {
+		limits[1].types |= BIT(NL80211_IFTYPE_P2P_CLIENT) |
+				   BIT(NL80211_IFTYPE_P2P_GO);
+		limits[2].max = 1;
+		limits[2].types |= BIT(NL80211_IFTYPE_P2P_DEVICE);
+	}
+
 	combinations[0].limits = limits;
 	combinations[0].n_limits = n_limits;
 	combinations[0].max_interfaces = max_interfaces;
-- 
2.34.1

[PATCH v3 02/10] wifi: ath12k: add P2P IE in beacon template

[Kang Yang]

P2P Element is a necessary component of P2P protocol communication.
It contains the Vendor Specific Information Element which includes
the WFA OUI and an OUI Type indicating P2P.

Add P2P IE in beacon template, and implement WMI interface for it.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: rebase on new ath-tag.
v2:
    1. add Tested-on tag of QCN9274.
    2. update copyright.

---
 drivers/net/wireless/ath/ath12k/mac.c | 85 ++++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath12k/wmi.c | 39 ++++++++++++
 drivers/net/wireless/ath/ath12k/wmi.h | 10 +++-
 3 files changed, 131 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 4751bfeaf46f..86eb11072aec 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -1138,6 +1138,64 @@ static int ath12k_mac_op_config(struct ieee80211_hw *hw, u32 changed)
 	return ret;
 }
 
+static int ath12k_mac_setup_bcn_p2p_ie(struct ath12k_vif *arvif,
+				       struct sk_buff *bcn)
+{
+	struct ath12k *ar = arvif->ar;
+	struct ieee80211_mgmt *mgmt;
+	const u8 *p2p_ie;
+	int ret;
+
+	mgmt = (void *)bcn->data;
+	p2p_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
+					 mgmt->u.beacon.variable,
+					 bcn->len - (mgmt->u.beacon.variable -
+						     bcn->data));
+	if (!p2p_ie) {
+		ath12k_warn(ar->ab, "no P2P ie found in beacon\n");
+		return -ENOENT;
+	}
+
+	ret = ath12k_wmi_p2p_go_bcn_ie(ar, arvif->vdev_id, p2p_ie);
+	if (ret) {
+		ath12k_warn(ar->ab, "failed to submit P2P GO bcn ie for vdev %i: %d\n",
+			    arvif->vdev_id, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ath12k_mac_remove_vendor_ie(struct sk_buff *skb, unsigned int oui,
+				       u8 oui_type, size_t ie_offset)
+{
+	size_t len;
+	const u8 *next;
+	const u8 *end;
+	u8 *ie;
+
+	if (WARN_ON(skb->len < ie_offset))
+		return -EINVAL;
+
+	ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
+					   skb->data + ie_offset,
+					   skb->len - ie_offset);
+	if (!ie)
+		return -ENOENT;
+
+	len = ie[1] + 2;
+	end = skb->data + skb->len;
+	next = ie + len;
+
+	if (WARN_ON(next > end))
+		return -EINVAL;
+
+	memmove(ie, next, end - next);
+	skb_trim(skb, skb->len - len);
+
+	return 0;
+}
+
 static int ath12k_mac_setup_bcn_tmpl(struct ath12k_vif *arvif)
 {
 	struct ath12k *ar = arvif->ar;
@@ -1170,14 +1228,37 @@ static int ath12k_mac_setup_bcn_tmpl(struct ath12k_vif *arvif)
 				    ies, (skb_tail_pointer(bcn) - ies)))
 		arvif->wpaie_present = true;
 
-	ret = ath12k_wmi_bcn_tmpl(ar, arvif->vdev_id, &offs, bcn);
+	if (arvif->vif->type == NL80211_IFTYPE_AP && arvif->vif->p2p) {
+		ret = ath12k_mac_setup_bcn_p2p_ie(arvif, bcn);
+		if (ret) {
+			ath12k_warn(ab, "failed to setup P2P GO bcn ie: %d\n",
+				    ret);
+			goto free_bcn_skb;
+		}
 
-	kfree_skb(bcn);
+		/* P2P IE is inserted by firmware automatically (as
+		 * configured above) so remove it from the base beacon
+		 * template to avoid duplicate P2P IEs in beacon frames.
+		 */
+		ret = ath12k_mac_remove_vendor_ie(bcn, WLAN_OUI_WFA,
+						  WLAN_OUI_TYPE_WFA_P2P,
+						  offsetof(struct ieee80211_mgmt,
+							   u.beacon.variable));
+		if (ret) {
+			ath12k_warn(ab, "failed to remove P2P vendor ie: %d\n",
+				    ret);
+			goto free_bcn_skb;
+		}
+	}
+
+	ret = ath12k_wmi_bcn_tmpl(ar, arvif->vdev_id, &offs, bcn);
 
 	if (ret)
 		ath12k_warn(ab, "failed to submit beacon template command: %d\n",
 			    ret);
 
+free_bcn_skb:
+	kfree_skb(bcn);
 	return ret;
 }
 
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 2fa724e5851a..f202c21f8b64 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -1710,6 +1710,45 @@ int ath12k_wmi_send_bcn_offload_control_cmd(struct ath12k *ar,
 	return ret;
 }
 
+int ath12k_wmi_p2p_go_bcn_ie(struct ath12k *ar, u32 vdev_id,
+			     const u8 *p2p_ie)
+{
+	struct ath12k_wmi_pdev *wmi = ar->wmi;
+	struct wmi_p2p_go_set_beacon_ie_cmd *cmd;
+	struct wmi_tlv *tlv;
+	struct sk_buff *skb;
+	void *ptr;
+	int ret, len;
+	size_t p2p_ie_len = p2p_ie[1] + 2;
+	size_t aligned_len = roundup(p2p_ie_len, sizeof(u32));
+
+	len = sizeof(*cmd) + TLV_HDR_SIZE + aligned_len;
+
+	skb = ath12k_wmi_alloc_skb(wmi->wmi_ab, len);
+	if (!skb)
+		return -ENOMEM;
+	ptr = skb->data;
+	cmd = ptr;
+	cmd->tlv_header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_P2P_GO_SET_BEACON_IE,
+						 sizeof(*cmd));
+	cmd->vdev_id = cpu_to_le32(vdev_id);
+	cmd->ie_buf_len = cpu_to_le32(p2p_ie_len);
+
+	ptr = skb->data + sizeof(*cmd);
+	tlv = ptr;
+	tlv->header = ath12k_wmi_tlv_cmd_hdr(WMI_TAG_ARRAY_BYTE,
+					     aligned_len);
+	memcpy(tlv->value, p2p_ie, p2p_ie_len);
+
+	ret = ath12k_wmi_cmd_send(wmi, skb, WMI_P2P_GO_SET_BEACON_IE);
+	if (ret) {
+		ath12k_warn(ar->ab, "failed to send WMI_P2P_GO_SET_BEACON_IE\n");
+		dev_kfree_skb(skb);
+	}
+
+	return ret;
+}
+
 int ath12k_wmi_bcn_tmpl(struct ath12k *ar, u32 vdev_id,
 			struct ieee80211_mutable_offsets *offs,
 			struct sk_buff *bcn)
diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index 06e5b9b4049b..b92b37784f09 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
 /*
  * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #ifndef ATH12K_WMI_H
@@ -3503,6 +3503,12 @@ struct wmi_bcn_tmpl_cmd {
 	__le32 esp_ie_offset;
 } __packed;
 
+struct wmi_p2p_go_set_beacon_ie_cmd {
+	__le32 tlv_header;
+	__le32 vdev_id;
+	__le32 ie_buf_len;
+} __packed;
+
 struct wmi_vdev_install_key_cmd {
 	__le32 tlv_header;
 	__le32 vdev_id;
@@ -4806,6 +4812,8 @@ int ath12k_wmi_cmd_send(struct ath12k_wmi_pdev *wmi, struct sk_buff *skb,
 struct sk_buff *ath12k_wmi_alloc_skb(struct ath12k_wmi_base *wmi_sc, u32 len);
 int ath12k_wmi_mgmt_send(struct ath12k *ar, u32 vdev_id, u32 buf_id,
 			 struct sk_buff *frame);
+int ath12k_wmi_p2p_go_bcn_ie(struct ath12k *ar, u32 vdev_id,
+			     const u8 *p2p_ie);
 int ath12k_wmi_bcn_tmpl(struct ath12k *ar, u32 vdev_id,
 			struct ieee80211_mutable_offsets *offs,
 			struct sk_buff *bcn);
-- 
2.34.1

[PATCH v3 03/10] wifi: ath12k: implement handling of P2P NoA event

[Kang Yang]

The NoA(Notice of Absence) attribute is used by the P2P Group Owner to
signal its absence due to power save timing, concurrent operation, or
off-channel scanning. It is also used in the P2P Presence Request-Response
mechanism.

The NoA attribute shall be present in the P2P IE in the beacon frames
transmitted by a P2P Group Owner when a NoA schedule is being advertised,
or when the CTWindow is non-zero.

So add support to update P2P information after P2P GO is up through
event WMI_P2P_NOA_EVENTID, and always put it in probe resp.

Create p2p.c and p2p.h for P2P related functions and definitions.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: use ath12k_ah_to_ar() to get ar.
v2: add Tested-on tag of QCN9274.

--
 drivers/net/wireless/ath/ath12k/Makefile |   3 +-
 drivers/net/wireless/ath/ath12k/mac.c    |  27 ++++-
 drivers/net/wireless/ath/ath12k/p2p.c    | 142 +++++++++++++++++++++++
 drivers/net/wireless/ath/ath12k/p2p.h    |  23 ++++
 drivers/net/wireless/ath/ath12k/wmi.c    |  51 +++++++-
 drivers/net/wireless/ath/ath12k/wmi.h    |  31 +++++
 6 files changed, 274 insertions(+), 3 deletions(-)
 create mode 100644 drivers/net/wireless/ath/ath12k/p2p.c
 create mode 100644 drivers/net/wireless/ath/ath12k/p2p.h

diff --git a/drivers/net/wireless/ath/ath12k/Makefile b/drivers/net/wireless/ath/ath12k/Makefile
index 62c52e733b5e..e296fe7f8d64 100644
--- a/drivers/net/wireless/ath/ath12k/Makefile
+++ b/drivers/net/wireless/ath/ath12k/Makefile
@@ -19,7 +19,8 @@ ath12k-y += core.o \
 	    hw.o \
 	    mhi.o \
 	    pci.o \
-	    dp_mon.o
+	    dp_mon.o \
+	    p2p.o
 
 ath12k-$(CONFIG_ATH12K_TRACING) += trace.o
 
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 86eb11072aec..49f1d5a9d36d 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -5119,6 +5119,27 @@ static int ath12k_mac_mgmt_tx(struct ath12k *ar, struct sk_buff *skb,
 	return 0;
 }
 
+static void ath12k_mac_add_p2p_noa_ie(struct ath12k *ar,
+				      struct ieee80211_vif *vif,
+				      struct sk_buff *skb,
+				      bool is_prb_rsp)
+{
+	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+
+	if (likely(!is_prb_rsp))
+		return;
+
+	spin_lock_bh(&ar->data_lock);
+
+	if (arvif->u.ap.noa_data &&
+	    !pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
+			      GFP_ATOMIC))
+		skb_put_data(skb, arvif->u.ap.noa_data,
+			     arvif->u.ap.noa_len);
+
+	spin_unlock_bh(&ar->data_lock);
+}
+
 static void ath12k_mac_op_tx(struct ieee80211_hw *hw,
 			     struct ieee80211_tx_control *control,
 			     struct sk_buff *skb)
@@ -5142,10 +5163,10 @@ static void ath12k_mac_op_tx(struct ieee80211_hw *hw,
 		skb_cb->flags |= ATH12K_SKB_CIPHER_SET;
 	}
 
+	is_prb_rsp = ieee80211_is_probe_resp(hdr->frame_control);
 	if (info_flags & IEEE80211_TX_CTL_HW_80211_ENCAP) {
 		skb_cb->flags |= ATH12K_SKB_HW_80211_ENCAP;
 	} else if (ieee80211_is_mgmt(hdr->frame_control)) {
-		is_prb_rsp = ieee80211_is_probe_resp(hdr->frame_control);
 		ret = ath12k_mac_mgmt_tx(ar, skb, is_prb_rsp);
 		if (ret) {
 			ath12k_warn(ar->ab, "failed to queue management frame %d\n",
@@ -5155,6 +5176,10 @@ static void ath12k_mac_op_tx(struct ieee80211_hw *hw,
 		return;
 	}
 
+	/* This is case only for P2P_GO */
+	if (vif->type == NL80211_IFTYPE_AP && vif->p2p)
+		ath12k_mac_add_p2p_noa_ie(ar, vif, skb, is_prb_rsp);
+
 	ret = ath12k_dp_tx(ar, arvif, skb);
 	if (ret) {
 		ath12k_warn(ar->ab, "failed to transmit frame %d\n", ret);
diff --git a/drivers/net/wireless/ath/ath12k/p2p.c b/drivers/net/wireless/ath/ath12k/p2p.c
new file mode 100644
index 000000000000..61e919b23b16
--- /dev/null
+++ b/drivers/net/wireless/ath/ath12k/p2p.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <net/mac80211.h>
+#include "core.h"
+#include "mac.h"
+#include "p2p.h"
+
+static void ath12k_p2p_noa_ie_fill(u8 *data, size_t len,
+				   const struct ath12k_wmi_p2p_noa_info *noa)
+{
+	struct ieee80211_p2p_noa_attr *noa_attr;
+	u8 ctwindow = le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_CTWIN_TU);
+	bool oppps = le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_OPP_PS);
+	__le16 *noa_attr_len;
+	u16 attr_len;
+	u8 noa_descriptors = le32_get_bits(noa->noa_attr,
+					   WMI_P2P_NOA_INFO_DESC_NUM);
+	int i;
+
+	/* P2P IE */
+	data[0] = WLAN_EID_VENDOR_SPECIFIC;
+	data[1] = len - 2;
+	data[2] = (WLAN_OUI_WFA >> 16) & 0xff;
+	data[3] = (WLAN_OUI_WFA >> 8) & 0xff;
+	data[4] = (WLAN_OUI_WFA >> 0) & 0xff;
+	data[5] = WLAN_OUI_TYPE_WFA_P2P;
+
+	/* NOA ATTR */
+	data[6] = IEEE80211_P2P_ATTR_ABSENCE_NOTICE;
+	noa_attr_len = (__le16 *)&data[7]; /* 2 bytes */
+	noa_attr = (struct ieee80211_p2p_noa_attr *)&data[9];
+
+	noa_attr->index = le32_get_bits(noa->noa_attr,
+					WMI_P2P_NOA_INFO_INDEX);
+	noa_attr->oppps_ctwindow = ctwindow;
+	if (oppps)
+		noa_attr->oppps_ctwindow |= IEEE80211_P2P_OPPPS_ENABLE_BIT;
+
+	for (i = 0; i < noa_descriptors; i++) {
+		noa_attr->desc[i].count =
+			__le32_to_cpu(noa->descriptors[i].type_count);
+		noa_attr->desc[i].duration = noa->descriptors[i].duration;
+		noa_attr->desc[i].interval = noa->descriptors[i].interval;
+		noa_attr->desc[i].start_time = noa->descriptors[i].start_time;
+	}
+
+	attr_len = 2; /* index + oppps_ctwindow */
+	attr_len += noa_descriptors * sizeof(struct ieee80211_p2p_noa_desc);
+	*noa_attr_len = __cpu_to_le16(attr_len);
+}
+
+static size_t ath12k_p2p_noa_ie_len_compute(const struct ath12k_wmi_p2p_noa_info *noa)
+{
+	size_t len = 0;
+
+	if (!(le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_DESC_NUM)) &&
+	    !(le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_OPP_PS)))
+		return 0;
+
+	len += 1 + 1 + 4; /* EID + len + OUI */
+	len += 1 + 2; /* noa attr + attr len */
+	len += 1 + 1; /* index + oppps_ctwindow */
+	len += le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_DESC_NUM) *
+			sizeof(struct ieee80211_p2p_noa_desc);
+
+	return len;
+}
+
+static void ath12k_p2p_noa_ie_assign(struct ath12k_vif *arvif, void *ie,
+				     size_t len)
+{
+	struct ath12k *ar = arvif->ar;
+
+	lockdep_assert_held(&ar->data_lock);
+
+	kfree(arvif->u.ap.noa_data);
+
+	arvif->u.ap.noa_data = ie;
+	arvif->u.ap.noa_len = len;
+}
+
+static void __ath12k_p2p_noa_update(struct ath12k_vif *arvif,
+				    const struct ath12k_wmi_p2p_noa_info *noa)
+{
+	struct ath12k *ar = arvif->ar;
+	void *ie;
+	size_t len;
+
+	lockdep_assert_held(&ar->data_lock);
+
+	ath12k_p2p_noa_ie_assign(arvif, NULL, 0);
+
+	len = ath12k_p2p_noa_ie_len_compute(noa);
+	if (!len)
+		return;
+
+	ie = kmalloc(len, GFP_ATOMIC);
+	if (!ie)
+		return;
+
+	ath12k_p2p_noa_ie_fill(ie, len, noa);
+	ath12k_p2p_noa_ie_assign(arvif, ie, len);
+}
+
+void ath12k_p2p_noa_update(struct ath12k_vif *arvif,
+			   const struct ath12k_wmi_p2p_noa_info *noa)
+{
+	struct ath12k *ar = arvif->ar;
+
+	spin_lock_bh(&ar->data_lock);
+	__ath12k_p2p_noa_update(arvif, noa);
+	spin_unlock_bh(&ar->data_lock);
+}
+
+static void ath12k_p2p_noa_update_vdev_iter(void *data, u8 *mac,
+					    struct ieee80211_vif *vif)
+{
+	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+	struct ath12k_p2p_noa_arg *arg = data;
+
+	if (arvif->vdev_id != arg->vdev_id)
+		return;
+
+	ath12k_p2p_noa_update(arvif, arg->noa);
+}
+
+void ath12k_p2p_noa_update_by_vdev_id(struct ath12k *ar, u32 vdev_id,
+				      const struct ath12k_wmi_p2p_noa_info *noa)
+{
+	struct ath12k_p2p_noa_arg arg = {
+		.vdev_id = vdev_id,
+		.noa = noa,
+	};
+
+	ieee80211_iterate_active_interfaces_atomic(ath12k_ar_to_hw(ar),
+						   IEEE80211_IFACE_ITER_NORMAL,
+						   ath12k_p2p_noa_update_vdev_iter,
+						   &arg);
+}
diff --git a/drivers/net/wireless/ath/ath12k/p2p.h b/drivers/net/wireless/ath/ath12k/p2p.h
new file mode 100644
index 000000000000..b6f177fe4ff4
--- /dev/null
+++ b/drivers/net/wireless/ath/ath12k/p2p.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: ISC */
+/*
+ * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved..
+ */
+
+#ifndef ATH12K_P2P_H
+#define ATH12K_P2P_H
+
+#include "wmi.h"
+
+struct ath12k_wmi_p2p_noa_info;
+
+struct ath12k_p2p_noa_arg {
+	u32 vdev_id;
+	const struct ath12k_wmi_p2p_noa_info *noa;
+};
+
+void ath12k_p2p_noa_update(struct ath12k_vif *arvif,
+			   const struct ath12k_wmi_p2p_noa_info *noa);
+void ath12k_p2p_noa_update_by_vdev_id(struct ath12k *ar, u32 vdev_id,
+				      const struct ath12k_wmi_p2p_noa_info *noa);
+
+#endif
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index f202c21f8b64..7b48f8a2e397 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -19,6 +19,7 @@
 #include "mac.h"
 #include "hw.h"
 #include "peer.h"
+#include "p2p.h"
 
 struct ath12k_wmi_svc_ready_parse {
 	bool wmi_svc_bitmap_done;
@@ -162,6 +163,10 @@ static const struct ath12k_wmi_tlv_policy ath12k_wmi_tlv_policies[] = {
 		.min_len = sizeof(struct wmi_probe_resp_tx_status_event) },
 	[WMI_TAG_VDEV_DELETE_RESP_EVENT] = {
 		.min_len = sizeof(struct wmi_vdev_delete_resp_event) },
+	[WMI_TAG_P2P_NOA_INFO] = {
+		.min_len = sizeof(struct ath12k_wmi_p2p_noa_info) },
+	[WMI_TAG_P2P_NOA_EVENT] = {
+		.min_len = sizeof(struct wmi_p2p_noa_event) },
 };
 
 static __le32 ath12k_wmi_tlv_hdr(u32 cmd, u32 len)
@@ -1051,7 +1056,7 @@ int ath12k_wmi_vdev_start(struct ath12k *ar, struct wmi_vdev_start_req_arg *arg,
 	tlv->header = ath12k_wmi_tlv_hdr(WMI_TAG_ARRAY_STRUCT, 0);
 
 	/* Note: This is a nested TLV containing:
-	 * [wmi_tlv][wmi_p2p_noa_descriptor][wmi_tlv]..
+	 * [wmi_tlv][ath12k_wmi_p2p_noa_descriptor][wmi_tlv]..
 	 */
 
 	ptr += sizeof(*tlv);
@@ -6669,6 +6674,47 @@ static void ath12k_probe_resp_tx_status_event(struct ath12k_base *ab,
 	kfree(tb);
 }
 
+static int ath12k_wmi_p2p_noa_event(struct ath12k_base *ab,
+				    struct sk_buff *skb)
+{
+	const void **tb;
+	const struct wmi_p2p_noa_event *ev;
+	const struct ath12k_wmi_p2p_noa_info *noa;
+	struct ath12k *ar;
+	int ret, vdev_id;
+
+	tb = ath12k_wmi_tlv_parse_alloc(ab, skb, GFP_ATOMIC);
+	if (IS_ERR(tb)) {
+		ret = PTR_ERR(tb);
+		ath12k_warn(ab, "failed to parse tlv: %d\n", ret);
+		return ret;
+	}
+
+	ev = tb[WMI_TAG_P2P_NOA_EVENT];
+	noa = tb[WMI_TAG_P2P_NOA_INFO];
+
+	if (!ev || !noa) {
+		kfree(tb);
+		return -EPROTO;
+	}
+
+	vdev_id = __le32_to_cpu(ev->vdev_id);
+
+	ath12k_dbg(ab, ATH12K_DBG_WMI,
+		   "wmi tlv p2p noa vdev_id %i descriptors %u\n",
+		   vdev_id, le32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_DESC_NUM));
+	ar = ath12k_mac_get_ar_by_vdev_id(ab, vdev_id);
+	if (!ar) {
+		ath12k_warn(ab, "invalid vdev id %d in P2P NoA event\n",
+			    vdev_id);
+		return -EINVAL;
+	}
+
+	ath12k_p2p_noa_update_by_vdev_id(ar, vdev_id, noa);
+	kfree(tb);
+	return 0;
+}
+
 static void ath12k_rfkill_state_change_event(struct ath12k_base *ab,
 					     struct sk_buff *skb)
 {
@@ -6804,6 +6850,9 @@ static void ath12k_wmi_op_rx(struct ath12k_base *ab, struct sk_buff *skb)
 	case WMI_RFKILL_STATE_CHANGE_EVENTID:
 		ath12k_rfkill_state_change_event(ab, skb);
 		break;
+	case WMI_P2P_NOA_EVENTID:
+		ath12k_wmi_p2p_noa_event(ab, skb);
+		break;
 	/* add Unsupported events here */
 	case WMI_TBTTOFFSET_EXT_UPDATE_EVENTID:
 	case WMI_PEER_OPER_MODE_CHANGE_EVENTID:
diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index b92b37784f09..0b8203bb5381 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -3489,6 +3489,37 @@ struct wmi_get_pdev_temperature_cmd {
 	__le32 pdev_id;
 } __packed;
 
+#define WMI_P2P_MAX_NOA_DESCRIPTORS		4
+
+struct wmi_p2p_noa_event {
+	__le32 vdev_id;
+} __packed;
+
+struct ath12k_wmi_p2p_noa_descriptor {
+	__le32 type_count; /* 255: continuous schedule, 0: reserved */
+	__le32 duration;  /* Absent period duration in micro seconds */
+	__le32 interval;   /* Absent period interval in micro seconds */
+	__le32 start_time; /* 32 bit tsf time when in starts */
+} __packed;
+
+#define WMI_P2P_NOA_INFO_CHANGED_FLAG		BIT(0)
+#define WMI_P2P_NOA_INFO_INDEX			GENMASK(15, 8)
+#define WMI_P2P_NOA_INFO_OPP_PS			BIT(16)
+#define WMI_P2P_NOA_INFO_CTWIN_TU		GENMASK(23, 17)
+#define WMI_P2P_NOA_INFO_DESC_NUM		GENMASK(31, 24)
+
+struct ath12k_wmi_p2p_noa_info {
+	/* Bit 0 - Flag to indicate an update in NOA schedule
+	 * Bits 7-1 - Reserved
+	 * Bits 15-8 - Index (identifies the instance of NOA sub element)
+	 * Bit  16 - Opp PS state of the AP
+	 * Bits 23-17 -  Ctwindow in TUs
+	 * Bits 31-24 -  Number of NOA descriptors
+	 */
+	__le32 noa_attr;
+	struct ath12k_wmi_p2p_noa_descriptor descriptors[WMI_P2P_MAX_NOA_DESCRIPTORS];
+} __packed;
+
 #define WMI_BEACON_TX_BUFFER_SIZE	512
 
 struct wmi_bcn_tmpl_cmd {
-- 
2.34.1

[PATCH v3 04/10] wifi: ath12k: implement remain on channel for P2P mode

[Kang Yang]

Implement remain on channel for p2p mode in ath12k_ops:
        ath12k_mac_op_remain_on_channel
        ath12k_mac_op_cancel_remain_on_channel

P2P device can trigger ROC scan. Then keep listening or sending management
frames on particular channels.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: use ath12k_ah_to_ar() to get ar.
v2:
    1. add Tested-on tag of QCN9274.
    2. update copyright.

---
 drivers/net/wireless/ath/ath12k/core.c |   1 +
 drivers/net/wireless/ath/ath12k/mac.c  | 119 +++++++++++++++++++++++++
 drivers/net/wireless/ath/ath12k/wmi.c  |   4 +
 3 files changed, 124 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c
index 1baad3302157..ffe4fd6e36f5 100644
--- a/drivers/net/wireless/ath/ath12k/core.c
+++ b/drivers/net/wireless/ath/ath12k/core.c
@@ -950,6 +950,7 @@ static void ath12k_core_pre_reconfigure_recovery(struct ath12k_base *ab)
 		ath12k_mac_drain_tx(ar);
 		complete(&ar->scan.started);
 		complete(&ar->scan.completed);
+		complete(&ar->scan.on_channel);
 		complete(&ar->peer_assoc_done);
 		complete(&ar->peer_delete_done);
 		complete(&ar->install_key_done);
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 49f1d5a9d36d..8b106aae3260 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -7391,6 +7391,122 @@ static void ath12k_mac_op_sta_statistics(struct ieee80211_hw *hw,
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
 }
 
+static int ath12k_mac_op_cancel_remain_on_channel(struct ieee80211_hw *hw,
+						  struct ieee80211_vif *vif)
+{
+	struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
+	struct ath12k *ar;
+
+	ar = ath12k_ah_to_ar(ah);
+
+	mutex_lock(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	ar->scan.roc_notify = false;
+	spin_unlock_bh(&ar->data_lock);
+
+	ath12k_scan_abort(ar);
+
+	mutex_unlock(&ar->conf_mutex);
+
+	cancel_delayed_work_sync(&ar->scan.timeout);
+
+	return 0;
+}
+
+static int ath12k_mac_op_remain_on_channel(struct ieee80211_hw *hw,
+					   struct ieee80211_vif *vif,
+					   struct ieee80211_channel *chan,
+					   int duration,
+					   enum ieee80211_roc_type type)
+{
+	struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
+	struct ath12k *ar;
+	struct ath12k_vif *arvif = ath12k_vif_to_arvif(vif);
+	struct ath12k_wmi_scan_req_arg arg;
+	int ret;
+	u32 scan_time_msec;
+
+	ar = ath12k_ah_to_ar(ah);
+
+	mutex_lock(&ar->conf_mutex);
+	spin_lock_bh(&ar->data_lock);
+	switch (ar->scan.state) {
+	case ATH12K_SCAN_IDLE:
+		reinit_completion(&ar->scan.started);
+		reinit_completion(&ar->scan.completed);
+		reinit_completion(&ar->scan.on_channel);
+		ar->scan.state = ATH12K_SCAN_STARTING;
+		ar->scan.is_roc = true;
+		ar->scan.vdev_id = arvif->vdev_id;
+		ar->scan.roc_freq = chan->center_freq;
+		ar->scan.roc_notify = true;
+		ret = 0;
+		break;
+	case ATH12K_SCAN_STARTING:
+	case ATH12K_SCAN_RUNNING:
+	case ATH12K_SCAN_ABORTING:
+		ret = -EBUSY;
+		break;
+	}
+	spin_unlock_bh(&ar->data_lock);
+
+	if (ret)
+		goto exit;
+
+	scan_time_msec = hw->wiphy->max_remain_on_channel_duration * 2;
+
+	memset(&arg, 0, sizeof(arg));
+	ath12k_wmi_start_scan_init(ar, &arg);
+	arg.num_chan = 1;
+	arg.chan_list = kcalloc(arg.num_chan, sizeof(*arg.chan_list),
+				GFP_KERNEL);
+	if (!arg.chan_list) {
+		ret = -ENOMEM;
+		goto exit;
+	}
+
+	arg.vdev_id = arvif->vdev_id;
+	arg.scan_id = ATH12K_SCAN_ID;
+	arg.chan_list[0] = chan->center_freq;
+	arg.dwell_time_active = scan_time_msec;
+	arg.dwell_time_passive = scan_time_msec;
+	arg.max_scan_time = scan_time_msec;
+	arg.scan_flags |= WMI_SCAN_FLAG_PASSIVE;
+	arg.burst_duration = duration;
+
+	ret = ath12k_start_scan(ar, &arg);
+	if (ret) {
+		ath12k_warn(ar->ab, "failed to start roc scan: %d\n", ret);
+
+		spin_lock_bh(&ar->data_lock);
+		ar->scan.state = ATH12K_SCAN_IDLE;
+		spin_unlock_bh(&ar->data_lock);
+		goto free_chan_list;
+	}
+
+	ret = wait_for_completion_timeout(&ar->scan.on_channel, 3 * HZ);
+	if (ret == 0) {
+		ath12k_warn(ar->ab, "failed to switch to channel for roc scan\n");
+		ret = ath12k_scan_stop(ar);
+		if (ret)
+			ath12k_warn(ar->ab, "failed to stop scan: %d\n", ret);
+		ret = -ETIMEDOUT;
+		goto free_chan_list;
+	}
+
+	ieee80211_queue_delayed_work(hw, &ar->scan.timeout,
+				     msecs_to_jiffies(duration));
+
+	ret = 0;
+
+free_chan_list:
+	kfree(arg.chan_list);
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
 static const struct ieee80211_ops ath12k_ops = {
 	.tx				= ath12k_mac_op_tx,
 	.wake_tx_queue			= ieee80211_handle_wake_tx_queue,
@@ -7425,6 +7541,8 @@ static const struct ieee80211_ops ath12k_ops = {
 	.get_survey			= ath12k_mac_op_get_survey,
 	.flush				= ath12k_mac_op_flush,
 	.sta_statistics			= ath12k_mac_op_sta_statistics,
+	.remain_on_channel              = ath12k_mac_op_remain_on_channel,
+	.cancel_remain_on_channel       = ath12k_mac_op_cancel_remain_on_channel,
 };
 
 static void ath12k_mac_update_ch_list(struct ath12k *ar,
@@ -7952,6 +8070,7 @@ static void ath12k_mac_setup(struct ath12k *ar)
 	init_completion(&ar->bss_survey_done);
 	init_completion(&ar->scan.started);
 	init_completion(&ar->scan.completed);
+	init_completion(&ar->scan.on_channel);
 
 	INIT_DELAYED_WORK(&ar->scan.timeout, ath12k_scan_timeout_work);
 	INIT_WORK(&ar->regd_update_work, ath12k_regd_update_work);
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 7b48f8a2e397..c7e732c6c145 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -5050,6 +5050,8 @@ static void ath12k_wmi_event_scan_started(struct ath12k *ar)
 		break;
 	case ATH12K_SCAN_STARTING:
 		ar->scan.state = ATH12K_SCAN_RUNNING;
+		if (ar->scan.is_roc)
+			ieee80211_ready_on_channel(ath12k_ar_to_hw(ar));
 		complete(&ar->scan.started);
 		break;
 	}
@@ -5134,6 +5136,8 @@ static void ath12k_wmi_event_scan_foreign_chan(struct ath12k *ar, u32 freq)
 	case ATH12K_SCAN_RUNNING:
 	case ATH12K_SCAN_ABORTING:
 		ar->scan_channel = ieee80211_get_channel(hw->wiphy, freq);
+		if (ar->scan.is_roc && ar->scan.roc_freq == freq)
+			complete(&ar->scan.on_channel);
 		break;
 	}
 }
-- 
2.34.1

[PATCH v3 05/10] wifi: ath12k: change WLAN_SCAN_PARAMS_MAX_IE_LEN from 256 to 512

[Kang Yang]

Mac80211 needs more space for P2P scan ie in P2P mode, 256 is not
enough, resize it to 512.

Also delete the duplicate macro definitions in wmi.h.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: no change.
v2: add Tested-on tag of QCN9274.

--
 drivers/net/wireless/ath/ath12k/wmi.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index 0b8203bb5381..0efed12dd7ab 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -168,10 +168,6 @@ struct wmi_tlv {
 #define WLAN_SCAN_MAX_HINT_BSSID         10
 #define MAX_RNR_BSS                    5
 
-#define WLAN_SCAN_PARAMS_MAX_SSID    16
-#define WLAN_SCAN_PARAMS_MAX_BSSID   4
-#define WLAN_SCAN_PARAMS_MAX_IE_LEN  256
-
 #define WMI_APPEND_TO_EXISTING_CHAN_LIST_FLAG 1
 
 #define WMI_BA_MODE_BUFFER_SIZE_256  3
@@ -3146,7 +3142,7 @@ struct ath12k_wmi_element_info_arg {
 
 #define WLAN_SCAN_PARAMS_MAX_SSID    16
 #define WLAN_SCAN_PARAMS_MAX_BSSID   4
-#define WLAN_SCAN_PARAMS_MAX_IE_LEN  256
+#define WLAN_SCAN_PARAMS_MAX_IE_LEN  512
 
 /* Values lower than this may be refused by some firmware revisions with a scan
  * completion with a timedout reason.
-- 
2.34.1

[PATCH v3 06/10] wifi: ath12k: allow specific mgmt frame tx while vdev is not up

[Kang Yang]

In current code, the management frames must be sent after vdev is started.
But for P2P device, vdev won't start until P2P negotiation is done. So
this logic doesn't make sense for P2P device.

Also use ar->conf_mutex to synchronize vdev delete and mgmt, TX.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: no change.
v2: add Tested-on tag of QCN9274.

---
 drivers/net/wireless/ath/ath12k/mac.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 8b106aae3260..65ac1d0b52a4 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -5069,8 +5069,8 @@ static void ath12k_mgmt_over_wmi_tx_work(struct work_struct *work)
 		}
 
 		arvif = ath12k_vif_to_arvif(skb_cb->vif);
-		if (ar->allocated_vdev_map & (1LL << arvif->vdev_id) &&
-		    arvif->is_started) {
+		mutex_lock(&ar->conf_mutex);
+		if (ar->allocated_vdev_map & (1LL << arvif->vdev_id)) {
 			ret = ath12k_mac_mgmt_tx_wmi(ar, arvif, skb);
 			if (ret) {
 				ath12k_warn(ar->ab, "failed to tx mgmt frame, vdev_id %d :%d\n",
@@ -5084,6 +5084,7 @@ static void ath12k_mgmt_over_wmi_tx_work(struct work_struct *work)
 				    arvif->is_started);
 			ath12k_mgmt_over_wmi_tx_drop(ar, skb);
 		}
+		mutex_unlock(&ar->conf_mutex);
 	}
 }
 
-- 
2.34.1

[PATCH v3 07/10] wifi: ath12k: fix broken structure wmi_vdev_create_cmd

[Kang Yang]

Current structure wmi_vdev_create_cmd is not matched to the firmware
definition. So update it.

And update vdev_stats_id_valid for vdev_stats_id.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: no change.
v2: add Tested-on tag of QCN9274.

---
 drivers/net/wireless/ath/ath12k/wmi.c | 5 +++++
 drivers/net/wireless/ath/ath12k/wmi.h | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index c7e732c6c145..34e676799616 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -828,7 +828,12 @@ int ath12k_wmi_vdev_create(struct ath12k *ar, u8 *macaddr,
 	cmd->vdev_subtype = cpu_to_le32(args->subtype);
 	cmd->num_cfg_txrx_streams = cpu_to_le32(WMI_NUM_SUPPORTED_BAND_MAX);
 	cmd->pdev_id = cpu_to_le32(args->pdev_id);
+	if (args->if_stats_id != ATH12K_INVAL_VDEV_STATS_ID)
+		cmd->vdev_stats_id_valid = cpu_to_le32(true);
+	else
+		cmd->vdev_stats_id_valid = cpu_to_le32(false);
 	cmd->vdev_stats_id = cpu_to_le32(args->if_stats_id);
+
 	ether_addr_copy(cmd->vdev_macaddr.addr, macaddr);
 
 	ptr = skb->data + sizeof(*cmd);
diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h
index 0efed12dd7ab..74b0ee9f86bf 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.h
+++ b/drivers/net/wireless/ath/ath12k/wmi.h
@@ -2712,6 +2712,9 @@ struct wmi_vdev_create_cmd {
 	struct ath12k_wmi_mac_addr_params vdev_macaddr;
 	__le32 num_cfg_txrx_streams;
 	__le32 pdev_id;
+	__le32 mbssid_flags;
+	__le32 mbssid_tx_vdev_id;
+	__le32 vdev_stats_id_valid;
 	__le32 vdev_stats_id;
 } __packed;
 
-- 
2.34.1

[PATCH v3 08/10] wifi: ath12k: move peer delete after vdev stop of station for WCN7850

[Kang Yang]

In current code, when STA/P2P Client connect to AP/P2P GO, the WMI
command sequence is:

peer_create->vdev_start->vdev_up

And sequence of STA/P2P Client disconnect from AP/P2P GO is:

peer_delete->vdev_down->vdev_stop

This sequence of disconnect is not opposite of connect. For STA or P2P
GO, bss peer is not needed by firmware during handling vdev stop
command. So with this sequence, STA and P2P GO can work normally.

But for P2P Client, firmware needs bss peer in some functions during
handling vdev stop command. The opposite sequence of disconnect should
be:

vdev_down->vdev_stop->peer_delete

So change the sequence of disconnect as above opposite sequence for
WCN7850.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: no change.
v2: add Tested-on tag of QCN9274.

---
 drivers/net/wireless/ath/ath12k/mac.c | 99 +++++++++++++++------------
 1 file changed, 54 insertions(+), 45 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 65ac1d0b52a4..10aa8b20ef7a 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -1083,6 +1083,46 @@ static int ath12k_mac_monitor_stop(struct ath12k *ar)
 	return ret;
 }
 
+static int ath12k_mac_vdev_stop(struct ath12k_vif *arvif)
+{
+	struct ath12k *ar = arvif->ar;
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	reinit_completion(&ar->vdev_setup_done);
+
+	ret = ath12k_wmi_vdev_stop(ar, arvif->vdev_id);
+	if (ret) {
+		ath12k_warn(ar->ab, "failed to stop WMI vdev %i: %d\n",
+			    arvif->vdev_id, ret);
+		goto err;
+	}
+
+	ret = ath12k_mac_vdev_setup_sync(ar);
+	if (ret) {
+		ath12k_warn(ar->ab, "failed to synchronize setup for vdev %i: %d\n",
+			    arvif->vdev_id, ret);
+		goto err;
+	}
+
+	WARN_ON(ar->num_started_vdevs == 0);
+
+	ar->num_started_vdevs--;
+	ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "vdev %pM stopped, vdev_id %d\n",
+		   arvif->vif->addr, arvif->vdev_id);
+
+	if (test_bit(ATH12K_CAC_RUNNING, &ar->dev_flags)) {
+		clear_bit(ATH12K_CAC_RUNNING, &ar->dev_flags);
+		ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "CAC Stopped for vdev %d\n",
+			   arvif->vdev_id);
+	}
+
+	return 0;
+err:
+	return ret;
+}
+
 static int ath12k_mac_config(struct ath12k *ar, u32 changed)
 {
 	struct ieee80211_hw *hw = ath12k_ar_to_hw(ar);
@@ -3905,6 +3945,13 @@ static int ath12k_mac_op_sta_state(struct ieee80211_hw *hw,
 				    sta->addr, arvif->vdev_id);
 	} else if ((old_state == IEEE80211_STA_NONE &&
 		    new_state == IEEE80211_STA_NOTEXIST)) {
+		if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
+			ath12k_bss_disassoc(ar, arvif);
+			ret = ath12k_mac_vdev_stop(arvif);
+			if (ret)
+				ath12k_warn(ar->ab, "failed to stop vdev %i: %d\n",
+					    arvif->vdev_id, ret);
+		}
 		ath12k_dp_peer_cleanup(ar, arvif->vdev_id, sta->addr);
 
 		ret = ath12k_peer_delete(ar, arvif->vdev_id, sta->addr);
@@ -6336,46 +6383,6 @@ ath12k_mac_vdev_start_restart(struct ath12k_vif *arvif,
 	return 0;
 }
 
-static int ath12k_mac_vdev_stop(struct ath12k_vif *arvif)
-{
-	struct ath12k *ar = arvif->ar;
-	int ret;
-
-	lockdep_assert_held(&ar->conf_mutex);
-
-	reinit_completion(&ar->vdev_setup_done);
-
-	ret = ath12k_wmi_vdev_stop(ar, arvif->vdev_id);
-	if (ret) {
-		ath12k_warn(ar->ab, "failed to stop WMI vdev %i: %d\n",
-			    arvif->vdev_id, ret);
-		goto err;
-	}
-
-	ret = ath12k_mac_vdev_setup_sync(ar);
-	if (ret) {
-		ath12k_warn(ar->ab, "failed to synchronize setup for vdev %i: %d\n",
-			    arvif->vdev_id, ret);
-		goto err;
-	}
-
-	WARN_ON(ar->num_started_vdevs == 0);
-
-	ar->num_started_vdevs--;
-	ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "vdev %pM stopped, vdev_id %d\n",
-		   arvif->vif->addr, arvif->vdev_id);
-
-	if (test_bit(ATH12K_CAC_RUNNING, &ar->dev_flags)) {
-		clear_bit(ATH12K_CAC_RUNNING, &ar->dev_flags);
-		ath12k_dbg(ar->ab, ATH12K_DBG_MAC, "CAC Stopped for vdev %d\n",
-			   arvif->vdev_id);
-	}
-
-	return 0;
-err:
-	return ret;
-}
-
 static int ath12k_mac_vdev_start(struct ath12k_vif *arvif,
 				 struct ieee80211_chanctx_conf *ctx)
 {
@@ -6742,11 +6749,13 @@ ath12k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
 		arvif->is_started = false;
 	}
 
-	ret = ath12k_mac_vdev_stop(arvif);
-	if (ret)
-		ath12k_warn(ab, "failed to stop vdev %i: %d\n",
-			    arvif->vdev_id, ret);
-
+	if (arvif->vdev_type != WMI_VDEV_TYPE_STA) {
+		ath12k_bss_disassoc(ar, arvif);
+		ret = ath12k_mac_vdev_stop(arvif);
+		if (ret)
+			ath12k_warn(ab, "failed to stop vdev %i: %d\n",
+				    arvif->vdev_id, ret);
+	}
 	arvif->is_started = false;
 
 	if (ab->hw_params->vdev_start_delay &&
-- 
2.34.1

[PATCH v3 09/10] wifi: ath12k: designating channel frequency for ROC scan

[Kang Yang]

For P2P mode, the WLAN interface may be requested to remain on a
specific channel and then to send some management frames on that
channel. Now chananel frequency of wmi_mgmt_send_cmd is set as 0. As
a result, firmware may choose a default but wrong channel.

Fix it by assigning chanfreq field with the ROC channel frequency.

This change only applies to WCN7850, other chips are not affected.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: no change.
v2: add Tested-on tag of QCN9274.

---
 drivers/net/wireless/ath/ath12k/wmi.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 34e676799616..9e2c6b98166b 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -732,6 +732,20 @@ static int ath12k_service_ready_event(struct ath12k_base *ab, struct sk_buff *sk
 	return 0;
 }
 
+static u32 ath12k_wmi_mgmt_get_freq(struct ath12k *ar,
+				    struct ieee80211_tx_info *info)
+{
+	struct ath12k_base *ab = ar->ab;
+	u32 freq = 0;
+
+	if (ab->hw_params->single_pdev_only &&
+	    ar->scan.is_roc &&
+	    (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN))
+		freq = ar->scan.roc_freq;
+
+	return freq;
+}
+
 struct sk_buff *ath12k_wmi_alloc_skb(struct ath12k_wmi_base *wmi_ab, u32 len)
 {
 	struct sk_buff *skb;
@@ -757,6 +771,7 @@ int ath12k_wmi_mgmt_send(struct ath12k *ar, u32 vdev_id, u32 buf_id,
 {
 	struct ath12k_wmi_pdev *wmi = ar->wmi;
 	struct wmi_mgmt_send_cmd *cmd;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(frame);
 	struct wmi_tlv *frame_tlv;
 	struct sk_buff *skb;
 	u32 buf_len;
@@ -775,7 +790,7 @@ int ath12k_wmi_mgmt_send(struct ath12k *ar, u32 vdev_id, u32 buf_id,
 						 sizeof(*cmd));
 	cmd->vdev_id = cpu_to_le32(vdev_id);
 	cmd->desc_id = cpu_to_le32(buf_id);
-	cmd->chanfreq = 0;
+	cmd->chanfreq = cpu_to_le32(ath12k_wmi_mgmt_get_freq(ar, info));
 	cmd->paddr_lo = cpu_to_le32(lower_32_bits(ATH12K_SKB_CB(frame)->paddr));
 	cmd->paddr_hi = cpu_to_le32(upper_32_bits(ATH12K_SKB_CB(frame)->paddr));
 	cmd->frame_len = cpu_to_le32(frame->len);
-- 
2.34.1

[PATCH v3 10/10] wifi: ath12k: advertise P2P dev support for WCN7850

[Kang Yang]

Now that all the necessary pieces are implemented we can enable P2P
support for WCN7850.

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

Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
---

v3: no change.
v2:
    1. add Tested-on tag of QCN9274.
    2. update copyright.

---
 drivers/net/wireless/ath/ath12k/hw.c  | 7 +++++--
 drivers/net/wireless/ath/ath12k/mac.c | 8 ++++++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/hw.c b/drivers/net/wireless/ath/ath12k/hw.c
index cbb6e2b6d826..b804d9f88a1b 100644
--- a/drivers/net/wireless/ath/ath12k/hw.c
+++ b/drivers/net/wireless/ath/ath12k/hw.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <linux/types.h>
@@ -953,7 +953,10 @@ static const struct ath12k_hw_params ath12k_hw_params[] = {
 		.vdev_start_delay = true,
 
 		.interface_modes = BIT(NL80211_IFTYPE_STATION) |
-				   BIT(NL80211_IFTYPE_AP),
+				   BIT(NL80211_IFTYPE_AP) |
+				   BIT(NL80211_IFTYPE_P2P_DEVICE) |
+				   BIT(NL80211_IFTYPE_P2P_CLIENT) |
+				   BIT(NL80211_IFTYPE_P2P_GO),
 		.supports_monitor = false,
 
 		.idle_ps = true,
diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 10aa8b20ef7a..d811bcc01456 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -5745,17 +5745,25 @@ static int ath12k_mac_op_add_interface(struct ieee80211_hw *hw,
 	case NL80211_IFTYPE_UNSPECIFIED:
 	case NL80211_IFTYPE_STATION:
 		arvif->vdev_type = WMI_VDEV_TYPE_STA;
+		if (vif->p2p)
+			arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_CLIENT;
 		break;
 	case NL80211_IFTYPE_MESH_POINT:
 		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_MESH_11S;
 		fallthrough;
 	case NL80211_IFTYPE_AP:
 		arvif->vdev_type = WMI_VDEV_TYPE_AP;
+		if (vif->p2p)
+			arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_GO;
 		break;
 	case NL80211_IFTYPE_MONITOR:
 		arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
 		ar->monitor_vdev_id = bit;
 		break;
+	case NL80211_IFTYPE_P2P_DEVICE:
+		arvif->vdev_type = WMI_VDEV_TYPE_STA;
+		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;
+		break;
 	default:
 		WARN_ON(1);
 		break;
-- 
2.34.1

Re: [PATCH v3 00/10] wifi: ath12k: P2P support for WCN7850

[Jeff Johnson]

On 1/22/2024 3:38 AM, Kang Yang wrote:
> Add P2P support for WCN7850.
> 
> Kang Yang (10):
>   wifi: ath12k: change interface combination for P2P mode
>   wifi: ath12k: add P2P IE in beacon template
>   wifi: ath12k: implement handling of P2P NoA event
>   wifi: ath12k: implement remain on channel for P2P mode
>   wifi: ath12k: change WLAN_SCAN_PARAMS_MAX_IE_LEN from 256 to 512
>   wifi: ath12k: allow specific mgmt frame tx while vdev is not up
>   wifi: ath12k: fix broken structure wmi_vdev_create_cmd
>   wifi: ath12k: move peer delete after vdev stop of station for WCN7850
>   wifi: ath12k: designating channel frequency for ROC scan
>   wifi: ath12k: advertise P2P dev support for WCN7850
> 
> v3: rebase on new ath-tag, use ath12k_ah_to_ar() get ar(Karthikeyan).
> v2:
>     1. add Tested-on tag of QCN9274.
>     2. update copyright in patch #1, #2, #4 and #10.
> 
>  drivers/net/wireless/ath/ath12k/Makefile |   3 +-
>  drivers/net/wireless/ath/ath12k/core.c   |   1 +
>  drivers/net/wireless/ath/ath12k/hw.c     |   7 +-
>  drivers/net/wireless/ath/ath12k/mac.c    | 366 +++++++++++++++++++----
>  drivers/net/wireless/ath/ath12k/p2p.c    | 142 +++++++++
>  drivers/net/wireless/ath/ath12k/p2p.h    |  23 ++
>  drivers/net/wireless/ath/ath12k/wmi.c    | 116 ++++++-
>  drivers/net/wireless/ath/ath12k/wmi.h    |  50 +++-
>  8 files changed, 643 insertions(+), 65 deletions(-)
>  create mode 100644 drivers/net/wireless/ath/ath12k/p2p.c
>  create mode 100644 drivers/net/wireless/ath/ath12k/p2p.h
> 
> 
> base-commit: 8ff464a183f92836d7fd99edceef50a89d8ea797
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>

Re: [PATCH v3 00/10] wifi: ath12k: P2P support for WCN7850

[Kalle Valo]

Kang Yang <quic_kangyang@quicinc.com> writes:

> Add P2P support for WCN7850.
>
> Kang Yang (10):
>   wifi: ath12k: change interface combination for P2P mode
>   wifi: ath12k: add P2P IE in beacon template
>   wifi: ath12k: implement handling of P2P NoA event
>   wifi: ath12k: implement remain on channel for P2P mode
>   wifi: ath12k: change WLAN_SCAN_PARAMS_MAX_IE_LEN from 256 to 512
>   wifi: ath12k: allow specific mgmt frame tx while vdev is not up
>   wifi: ath12k: fix broken structure wmi_vdev_create_cmd
>   wifi: ath12k: move peer delete after vdev stop of station for WCN7850
>   wifi: ath12k: designating channel frequency for ROC scan
>   wifi: ath12k: advertise P2P dev support for WCN7850
>
> v3: rebase on new ath-tag, use ath12k_ah_to_ar() get ar(Karthikeyan).
> v2:
>     1. add Tested-on tag of QCN9274.
>     2. update copyright in patch #1, #2, #4 and #10.

I have not been able to run any p2p tests yet but during rmmod with
WCN7850 I now see:

[  136.260660] ------------[ cut here ]------------
[  136.260909] UBSAN: shift-out-of-bounds in drivers/net/wireless/ath/ath12k/mac.c:6005:38
[  136.261008] shift exponent 255 is too large for 64-bit type 'long long int'
[  136.261096] CPU: 1 PID: 1993 Comm: rmmod Not tainted 6.8.0-rc1-wt-ath+ #1262
[  136.261180] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021
[  136.261261] Call Trace:
[  136.261343]  <TASK>
[  136.261427]  dump_stack_lvl+0x82/0xc0
[  136.261513]  dump_stack+0x10/0x20
[  136.261597]  __ubsan_handle_shift_out_of_bounds+0x13f/0x300
[  136.261711]  ath12k_mac_op_remove_interface.cold+0x17/0x86 [ath12k]
[  136.261941]  drv_remove_interface+0x215/0x4a0 [mac80211]
[  136.262102]  ieee80211_do_stop+0xfe4/0x2390 [mac80211]
[  136.262258]  ? trace_contention_end+0xe2/0x110
[  136.262359]  ? ieee80211_del_virtual_monitor+0x60/0x60 [mac80211]
[  136.262507]  ? mutex_lock_io_nested+0x1260/0x1260
[  136.262610]  ? debug_smp_processor_id+0x17/0x20
[  136.262702]  ? trace_contention_end+0xe2/0x110
[  136.262792]  ieee80211_sdata_stop+0x4d/0x70 [mac80211]
[  136.262961]  ieee80211_stop_p2p_device+0xd/0x10 [mac80211]
[  136.263127]  cfg80211_stop_p2p_device+0x18e/0x580 [cfg80211]
[  136.263282]  cfg80211_shutdown_all_interfaces+0x10c/0x190 [cfg80211]
[  136.263434]  ieee80211_remove_interfaces+0xc7/0x8f0 [mac80211]
[  136.263611]  ? __wait_for_common+0x42f/0x6d0
[  136.263702]  ? ieee80211_sdata_stop+0x70/0x70 [mac80211]
[  136.263881]  ieee80211_unregister_hw+0x4f/0x380 [mac80211]
[  136.264045]  ath12k_mac_hw_unregister+0x7a/0x250 [ath12k]
[  136.264155]  ath12k_mac_unregister+0x7f/0xc0 [ath12k]
[  136.264265]  ath12k_core_deinit+0x2e/0x130 [ath12k]
[  136.264372]  ath12k_pci_remove+0xad/0x1a0 [ath12k]
[  136.264478]  pci_device_remove+0x93/0x1b0
[  136.264567]  device_remove+0xbf/0x150
[  136.264662]  device_release_driver_internal+0x3c3/0x580
[  136.264746]  ? __kasan_check_read+0x11/0x20
[  136.264836]  driver_detach+0xc4/0x190
[  136.264924]  bus_remove_driver+0x130/0x2a0
[  136.265012]  driver_unregister+0x68/0x90
[  136.265095]  pci_unregister_driver+0x24/0x240
[  136.265177]  ? find_module_all+0x13e/0x1c0
[  136.265267]  ath12k_pci_exit+0x10/0x20 [ath12k]
[  136.265372]  __do_sys_delete_module+0x32d/0x540
[  136.265454]  ? module_flags+0x300/0x300
[  136.265708]  ? kmem_cache_free+0xea/0x3a0
[  136.265795]  ? __fput+0x404/0xa50
[  136.265887]  ? debug_smp_processor_id+0x17/0x20
[  136.265983]  __x64_sys_delete_module+0x4f/0x70
[  136.266064]  do_syscall_64+0x66/0x130
[  136.266149]  entry_SYSCALL_64_after_hwframe+0x46/0x4e
[  136.266256] RIP: 0033:0x7efe74591c8b
[  136.266347] Code: 73 01 c3 48 8b 0d 05 c2 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d d5 c1 0c 00 f7 d8 64 89 01 48
[  136.266435] RSP: 002b:00007ffea9c34cb8 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[  136.266550] RAX: ffffffffffffffda RBX: 000055db95b4c7e0 RCX: 00007efe74591c8b
[  136.266679] RDX: 000000000000000a RSI: 0000000000000800 RDI: 000055db95b4c848
[  136.266808] RBP: 00007ffea9c34d18 R08: 0000000000000000 R09: 0000000000000000
[  136.266934] R10: 00007efe7460dac0 R11: 0000000000000206 R12: 00007ffea9c34ef0
[  136.267062] R13: 00007ffea9c36ebf R14: 000055db95b4b2a0 R15: 000055db95b4c7e0
[  136.267221]  </TASK>
[  136.267390] ---[ end trace ]---

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

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

Re: [PATCH v3 00/10] wifi: ath12k: P2P support for WCN7850

[Kang Yang]

On 1/25/2024 10:44 PM, Kalle Valo wrote:
> Kang Yang <quic_kangyang@quicinc.com> writes:
> 
>> Add P2P support for WCN7850.
>>
>> Kang Yang (10):
>>    wifi: ath12k: change interface combination for P2P mode
>>    wifi: ath12k: add P2P IE in beacon template
>>    wifi: ath12k: implement handling of P2P NoA event
>>    wifi: ath12k: implement remain on channel for P2P mode
>>    wifi: ath12k: change WLAN_SCAN_PARAMS_MAX_IE_LEN from 256 to 512
>>    wifi: ath12k: allow specific mgmt frame tx while vdev is not up
>>    wifi: ath12k: fix broken structure wmi_vdev_create_cmd
>>    wifi: ath12k: move peer delete after vdev stop of station for WCN7850
>>    wifi: ath12k: designating channel frequency for ROC scan
>>    wifi: ath12k: advertise P2P dev support for WCN7850
>>
>> v3: rebase on new ath-tag, use ath12k_ah_to_ar() get ar(Karthikeyan).
>> v2:
>>      1. add Tested-on tag of QCN9274.
>>      2. update copyright in patch #1, #2, #4 and #10.
> 
> I have not been able to run any p2p tests yet but during rmmod with
> WCN7850 I now see:
> 
> [  136.260660] ------------[ cut here ]------------
> [  136.260909] UBSAN: shift-out-of-bounds in drivers/net/wireless/ath/ath12k/mac.c:6005:38
> [  136.261008] shift exponent 255 is too large for 64-bit type 'long long int'


It seems you enable CONFIG_UBSAN, CONFIG_UBSAN_SANITIZE_ALL and other 
CONFIG_UBSAN_XXX.

I will add them to my config file and debug this warning.

It's been a long time since the last update of kernel config. Can you 
share the new one if convenient?


> [  136.261096] CPU: 1 PID: 1993 Comm: rmmod Not tainted 6.8.0-rc1-wt-ath+ #1262
> [  136.261180] Hardware name: Intel(R) Client Systems NUC8i7HVK/NUC8i7HVB, BIOS HNKBLi70.86A.0067.2021.0528.1339 05/28/2021
> [  136.261261] Call Trace:
> [  136.261343]  <TASK>
> [  136.261427]  dump_stack_lvl+0x82/0xc0
> [  136.261513]  dump_stack+0x10/0x20
> [  136.261597]  __ubsan_handle_shift_out_of_bounds+0x13f/0x300
> [  136.261711]  ath12k_mac_op_remove_interface.cold+0x17/0x86 [ath12k]
> [  136.261941]  drv_remove_interface+0x215/0x4a0 [mac80211]
> [  136.262102]  ieee80211_do_stop+0xfe4/0x2390 [mac80211]
> [  136.262258]  ? trace_contention_end+0xe2/0x110
> [  136.262359]  ? ieee80211_del_virtual_monitor+0x60/0x60 [mac80211]
> [  136.262507]  ? mutex_lock_io_nested+0x1260/0x1260
> [  136.262610]  ? debug_smp_processor_id+0x17/0x20
> [  136.262702]  ? trace_contention_end+0xe2/0x110
> [  136.262792]  ieee80211_sdata_stop+0x4d/0x70 [mac80211]
> [  136.262961]  ieee80211_stop_p2p_device+0xd/0x10 [mac80211]
> [  136.263127]  cfg80211_stop_p2p_device+0x18e/0x580 [cfg80211]
> [  136.263282]  cfg80211_shutdown_all_interfaces+0x10c/0x190 [cfg80211]
> [  136.263434]  ieee80211_remove_interfaces+0xc7/0x8f0 [mac80211]
> [  136.263611]  ? __wait_for_common+0x42f/0x6d0
> [  136.263702]  ? ieee80211_sdata_stop+0x70/0x70 [mac80211]
> [  136.263881]  ieee80211_unregister_hw+0x4f/0x380 [mac80211]
> [  136.264045]  ath12k_mac_hw_unregister+0x7a/0x250 [ath12k]
> [  136.264155]  ath12k_mac_unregister+0x7f/0xc0 [ath12k]
> [  136.264265]  ath12k_core_deinit+0x2e/0x130 [ath12k]
> [  136.264372]  ath12k_pci_remove+0xad/0x1a0 [ath12k]
> [  136.264478]  pci_device_remove+0x93/0x1b0
> [  136.264567]  device_remove+0xbf/0x150
> [  136.264662]  device_release_driver_internal+0x3c3/0x580
> [  136.264746]  ? __kasan_check_read+0x11/0x20
> [  136.264836]  driver_detach+0xc4/0x190
> [  136.264924]  bus_remove_driver+0x130/0x2a0
> [  136.265012]  driver_unregister+0x68/0x90
> [  136.265095]  pci_unregister_driver+0x24/0x240
> [  136.265177]  ? find_module_all+0x13e/0x1c0
> [  136.265267]  ath12k_pci_exit+0x10/0x20 [ath12k]
> [  136.265372]  __do_sys_delete_module+0x32d/0x540
> [  136.265454]  ? module_flags+0x300/0x300
> [  136.265708]  ? kmem_cache_free+0xea/0x3a0
> [  136.265795]  ? __fput+0x404/0xa50
> [  136.265887]  ? debug_smp_processor_id+0x17/0x20
> [  136.265983]  __x64_sys_delete_module+0x4f/0x70
> [  136.266064]  do_syscall_64+0x66/0x130
> [  136.266149]  entry_SYSCALL_64_after_hwframe+0x46/0x4e
> [  136.266256] RIP: 0033:0x7efe74591c8b
> [  136.266347] Code: 73 01 c3 48 8b 0d 05 c2 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d d5 c1 0c 00 f7 d8 64 89 01 48
> [  136.266435] RSP: 002b:00007ffea9c34cb8 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
> [  136.266550] RAX: ffffffffffffffda RBX: 000055db95b4c7e0 RCX: 00007efe74591c8b
> [  136.266679] RDX: 000000000000000a RSI: 0000000000000800 RDI: 000055db95b4c848
> [  136.266808] RBP: 00007ffea9c34d18 R08: 0000000000000000 R09: 0000000000000000
> [  136.266934] R10: 00007efe7460dac0 R11: 0000000000000206 R12: 00007ffea9c34ef0
> [  136.267062] R13: 00007ffea9c36ebf R14: 000055db95b4b2a0 R15: 000055db95b4c7e0
> [  136.267221]  </TASK>
> [  136.267390] ---[ end trace ]---
> 

Re: [PATCH v3 00/10] wifi: ath12k: P2P support for WCN7850

[Kalle Valo]

Kang Yang <quic_kangyang@quicinc.com> writes:

> On 1/25/2024 10:44 PM, Kalle Valo wrote:
>> Kang Yang <quic_kangyang@quicinc.com> writes:
>> 
>>> Add P2P support for WCN7850.
>>>
>>> Kang Yang (10):
>>>    wifi: ath12k: change interface combination for P2P mode
>>>    wifi: ath12k: add P2P IE in beacon template
>>>    wifi: ath12k: implement handling of P2P NoA event
>>>    wifi: ath12k: implement remain on channel for P2P mode
>>>    wifi: ath12k: change WLAN_SCAN_PARAMS_MAX_IE_LEN from 256 to 512
>>>    wifi: ath12k: allow specific mgmt frame tx while vdev is not up
>>>    wifi: ath12k: fix broken structure wmi_vdev_create_cmd
>>>    wifi: ath12k: move peer delete after vdev stop of station for WCN7850
>>>    wifi: ath12k: designating channel frequency for ROC scan
>>>    wifi: ath12k: advertise P2P dev support for WCN7850
>>>
>>> v3: rebase on new ath-tag, use ath12k_ah_to_ar() get ar(Karthikeyan).
>>> v2:
>>>      1. add Tested-on tag of QCN9274.
>>>      2. update copyright in patch #1, #2, #4 and #10.
>> I have not been able to run any p2p tests yet but during rmmod with
>> WCN7850 I now see:
>> [  136.260660] ------------[ cut here ]------------
>> [ 136.260909] UBSAN: shift-out-of-bounds in
>> drivers/net/wireless/ath/ath12k/mac.c:6005:38
>> [  136.261008] shift exponent 255 is too large for 64-bit type 'long long int'
>
>
> It seems you enable CONFIG_UBSAN, CONFIG_UBSAN_SANITIZE_ALL and other
> CONFIG_UBSAN_XXX.

Yes, I try to enable debug facilities as much as possible. They are
really good at finding issues in the code.

> I will add them to my config file and debug this warning.

Thanks.

> It's been a long time since the last update of kernel config. Can you
> share the new one if convenient?

Yeah, it is. I updated it now.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

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

Re: [PATCH v3 00/10] wifi: ath12k: P2P support for WCN7850

[quic_kangyang]

On 1/29/24 9:02 PM, Kalle Valo <kvalo@kernel.org> wrote:
> Kang Yang <quic_kangyang@quicinc.com> writes:
> 
> > On 1/25/2024 10:44 PM, Kalle Valo wrote:
> >> Kang Yang <quic_kangyang@quicinc.com> writes:
> >>
> >>> Add P2P support for WCN7850.
> >>>
> >>> Kang Yang (10):
> >>>     wifi: ath12k: change interface combination for P2P mode
> >>>     wifi: ath12k: add P2P IE in beacon template
> >>>     wifi: ath12k: implement handling of P2P NoA event
> >>>     wifi: ath12k: implement remain on channel for P2P mode
> >>>     wifi: ath12k: change WLAN_SCAN_PARAMS_MAX_IE_LEN from 256 to 512
> >>>     wifi: ath12k: allow specific mgmt frame tx while vdev is not up
> >>>     wifi: ath12k: fix broken structure wmi_vdev_create_cmd
> >>>     wifi: ath12k: move peer delete after vdev stop of station for WCN7850
> >>>     wifi: ath12k: designating channel frequency for ROC scan
> >>>     wifi: ath12k: advertise P2P dev support for WCN7850
> >>>
> >>> v3: rebase on new ath-tag, use ath12k_ah_to_ar() get ar(Karthikeyan).
> >>> v2:
> >>>       1. add Tested-on tag of QCN9274.
> >>>       2. update copyright in patch #1, #2, #4 and #10.
> >> I have not been able to run any p2p tests yet but during rmmod with
> >> WCN7850 I now see:
> >> [  136.260660] ------------[ cut here ]------------
> >> [ 136.260909] UBSAN: shift-out-of-bounds in
> >> drivers/net/wireless/ath/ath12k/mac.c:6005:38
> >> [  136.261008] shift exponent 255 is too large for 64-bit type 'long long int'
> >
> >
> > It seems you enable CONFIG_UBSAN, CONFIG_UBSAN_SANITIZE_ALL and other
> > CONFIG_UBSAN_XXX.
> 
> Yes, I try to enable debug facilities as much as possible. They are
> really good at finding issues in the code.
> 
> > I will add them to my config file and debug this warning.
> 
> Thanks.
> 

Now, i fix this warning with new patch '[PATCH v6 02/11] wifi: ath12k: fix incorrect logic of calculating vdev_stats_id'.

Please ignore this version.


> > It's been a long time since the last update of kernel config. Can you
> > share the new one if convenient?
> 
> Yeah, it is. I updated it now.
> 
>