From patchwork Wed Feb 28 09:35:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kang Yang X-Patchwork-Id: 776837 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2BEF636123 for ; Wed, 28 Feb 2024 09:36:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709112964; cv=none; b=TvK1mkiFzf9Kg5m1e8Y+g2ZNuYpBdJgOTf97X95ZQvJfbNCwq4m3Wr/lvGCIzyzFN4UrEhhPsjUvmC6LwOR0SlwoURnOciN8S7IoPAo5ywp+Puyh0Zv+bFetZXUl0D+x57rxxYHRfy0qEScri01nc5DM92ljKM+WgzoHR6HbEdg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709112964; c=relaxed/simple; bh=ph+inMJpVBelNmK0UOnV/piW2DzFDy2/ZI/yazSrecY=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=s+kaVAEXXgJLw8TlsfKXqa65w8yeTkp2JUA0DO/vb5FqdZ5+GYWPqNV2QvNjpDiGlWrsJhxDTnQLIwp5cvMBGFyy9F/gGIN9+gNo8yBusSfM+S9qg6zRzuyO5kcnCXqYhVPB3SDHTASMUxR+i5o7h1/fmYE8iG3dWkLgc6nHUXw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=lRsrjPIA; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="lRsrjPIA" Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 41S6OUlS003609; Wed, 28 Feb 2024 09:35:59 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= qcppdkim1; bh=/JjLnKsiyO7yJp+LU5B2/Dm3b081IRrmMYYJ3f835Jo=; b=lR srjPIA3b/Fzo5mNEGSgRempc9mxs16Gapq8nCvSWBzFjUdfzRoIqcEc7b/q2Y0u2 UvqYdiDUB3YhpmrvAc/YcLIawOFHaudtL5PxTVO2+KHXAZL2t1TlxF+lb2+7S1S+ aILEMLUYgTfSbXb8d26+JAib8aWa3awzJA4RSHu/vJPgiwnUx7Dw+Ns/rrYGbl/o 8hFi/YLOexxB21NKiqy2vH4d1FUbXWT5BVOLy0Vk69oTwUZO6MpPTayixqrK+p9O Xu9q+Vk4HMSm5xYBjPDvuLID2idf4Ygg+6AA1Q+y1LzSHUG40/WuyYqGv7SWkLKA s/5Rz1y2onCndcp5ff9g== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3whw3f0kqj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Feb 2024 09:35:59 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 41S9ZxwM020623 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Feb 2024 09:35:59 GMT Received: from Mayan.qca.qualcomm.com (10.80.80.8) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 28 Feb 2024 01:35:57 -0800 From: Kang Yang To: CC: , Subject: [PATCH v2 3/6] wifi: ath11k: implement handling of P2P NoA event Date: Wed, 28 Feb 2024 17:35:34 +0800 Message-ID: <20240228093537.25052-4-quic_kangyang@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240228093537.25052-1-quic_kangyang@quicinc.com> References: <20240228093537.25052-1-quic_kangyang@quicinc.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: DSc90_wGwJJKgK5CqzQ7Kbdj4SoUKpXi X-Proofpoint-GUID: DSc90_wGwJJKgK5CqzQ7Kbdj4SoUKpXi X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-28_04,2024-02-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 spamscore=0 suspectscore=0 adultscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 mlxscore=0 clxscore=1015 malwarescore=0 phishscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2402120000 definitions=main-2402280075 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: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.37 Tested-on: QCA2066 hw2.1 PCI WLAN.HSP.1.1-03926.13-QCAHSPSWPL_V2_SILICONZ_CE-2.52297.2 Signed-off-by: Kang Yang Acked-by: Jeff Johnson --- drivers/net/wireless/ath/ath11k/Makefile | 3 +- drivers/net/wireless/ath/ath11k/p2p.c | 149 +++++++++++++++++++++++ drivers/net/wireless/ath/ath11k/p2p.h | 22 ++++ drivers/net/wireless/ath/ath11k/wmi.c | 68 ++++++++++- drivers/net/wireless/ath/ath11k/wmi.h | 31 +++++ 5 files changed, 271 insertions(+), 2 deletions(-) create mode 100644 drivers/net/wireless/ath/ath11k/p2p.c create mode 100644 drivers/net/wireless/ath/ath11k/p2p.h diff --git a/drivers/net/wireless/ath/ath11k/Makefile b/drivers/net/wireless/ath/ath11k/Makefile index 2c94d50ae36f..43d2d8ddcdc0 100644 --- a/drivers/net/wireless/ath/ath11k/Makefile +++ b/drivers/net/wireless/ath/ath11k/Makefile @@ -18,7 +18,8 @@ ath11k-y += core.o \ dbring.o \ hw.o \ pcic.o \ - fw.o + fw.o \ + p2p.o ath11k-$(CONFIG_ATH11K_DEBUGFS) += debugfs.o debugfs_htt_stats.o debugfs_sta.o ath11k-$(CONFIG_NL80211_TESTMODE) += testmode.o diff --git a/drivers/net/wireless/ath/ath11k/p2p.c b/drivers/net/wireless/ath/ath11k/p2p.c new file mode 100644 index 000000000000..aabf1e04b465 --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/p2p.c @@ -0,0 +1,149 @@ +// SPDX-License-Identifier: BSD-3-Clause-Clear +/* + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include "core.h" +#include "wmi.h" +#include "mac.h" +#include "p2p.h" + +static void ath11k_p2p_noa_ie_fill(u8 *data, size_t len, + const struct ath11k_wmi_p2p_noa_info *noa) +{ + struct ieee80211_p2p_noa_attr *noa_attr; + u8 noa_descriptors, ctwindow; + bool oppps; + __le16 *noa_attr_len; + u16 attr_len; + int i; + + ctwindow = u32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_CTWIN_TU); + oppps = u32_get_bits(noa->noa_attr, WMI_P2P_NOA_INFO_OPP_PS); + noa_descriptors = u32_get_bits(noa->noa_attr, + WMI_P2P_NOA_INFO_DESC_NUM); + + /* 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 = u32_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 = noa->descriptors[i].type_count; + noa_attr->desc[i].duration = + cpu_to_le32(noa->descriptors[i].duration); + noa_attr->desc[i].interval = + cpu_to_le32(noa->descriptors[i].interval); + noa_attr->desc[i].start_time = + cpu_to_le32(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 +ath11k_p2p_noa_ie_len_compute(const struct ath11k_wmi_p2p_noa_info *noa) +{ + size_t len = 0; + u8 noa_descriptors = u32_get_bits(noa->noa_attr, + WMI_P2P_NOA_INFO_DESC_NUM); + + if (!(noa_descriptors) && + !(u32_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 += noa_descriptors * + sizeof(struct ieee80211_p2p_noa_desc); + + return len; +} + +static void ath11k_p2p_noa_ie_assign(struct ath11k_vif *arvif, void *ie, + size_t len) +{ + struct ath11k *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 __ath11k_p2p_noa_update(struct ath11k_vif *arvif, + const struct ath11k_wmi_p2p_noa_info *noa) +{ + struct ath11k *ar = arvif->ar; + void *ie; + size_t len; + + lockdep_assert_held(&ar->data_lock); + + ath11k_p2p_noa_ie_assign(arvif, NULL, 0); + + len = ath11k_p2p_noa_ie_len_compute(noa); + if (!len) + return; + + ie = kmalloc(len, GFP_ATOMIC); + if (!ie) + return; + + ath11k_p2p_noa_ie_fill(ie, len, noa); + ath11k_p2p_noa_ie_assign(arvif, ie, len); } + +void ath11k_p2p_noa_update(struct ath11k_vif *arvif, + const struct ath11k_wmi_p2p_noa_info *noa) +{ + struct ath11k *ar = arvif->ar; + + spin_lock_bh(&ar->data_lock); + __ath11k_p2p_noa_update(arvif, noa); + spin_unlock_bh(&ar->data_lock); +} + +static void ath11k_p2p_noa_update_vdev_iter(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct ath11k_vif *arvif = ath11k_vif_to_arvif(vif); + struct ath11k_p2p_noa_arg *arg = data; + + if (arvif->vdev_id != arg->vdev_id) + return; + + ath11k_p2p_noa_update(arvif, arg->noa); +} + +void ath11k_p2p_noa_update_by_vdev_id(struct ath11k *ar, u32 vdev_id, + const struct ath11k_wmi_p2p_noa_info *noa) +{ + struct ath11k_p2p_noa_arg arg = { + .vdev_id = vdev_id, + .noa = noa, + }; + + ieee80211_iterate_active_interfaces_atomic(ar->hw, + IEEE80211_IFACE_ITER_NORMAL, + ath11k_p2p_noa_update_vdev_iter, + &arg); +} diff --git a/drivers/net/wireless/ath/ath11k/p2p.h b/drivers/net/wireless/ath/ath11k/p2p.h new file mode 100644 index 000000000000..d907940a9b09 --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/p2p.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: BSD-3-Clause-Clear */ +/* + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef ATH11K_P2P_H +#define ATH11K_P2P_H + +#include "wmi.h" + +struct ath11k_wmi_p2p_noa_info; + +struct ath11k_p2p_noa_arg { + u32 vdev_id; + const struct ath11k_wmi_p2p_noa_info *noa; +}; + +void ath11k_p2p_noa_update(struct ath11k_vif *arvif, + const struct ath11k_wmi_p2p_noa_info *noa); +void ath11k_p2p_noa_update_by_vdev_id(struct ath11k *ar, u32 vdev_id, + const struct ath11k_wmi_p2p_noa_info *noa); +#endif diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index d86fcdd374c6..c74aa3f95658 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -20,6 +20,7 @@ #include "hw.h" #include "peer.h" #include "testmode.h" +#include "p2p.h" struct wmi_tlv_policy { size_t min_len; @@ -154,6 +155,10 @@ static const struct wmi_tlv_policy wmi_tlv_policies[] = { .min_len = sizeof(struct wmi_per_chain_rssi_stats) }, [WMI_TAG_TWT_ADD_DIALOG_COMPLETE_EVENT] = { .min_len = sizeof(struct wmi_twt_add_dialog_event) }, + [WMI_TAG_P2P_NOA_INFO] = { + .min_len = sizeof(struct ath11k_wmi_p2p_noa_info) }, + [WMI_TAG_P2P_NOA_EVENT] = { + .min_len = sizeof(struct wmi_p2p_noa_event) }, }; #define PRIMAP(_hw_mode_) \ @@ -981,7 +986,7 @@ int ath11k_wmi_vdev_start(struct ath11k *ar, struct wmi_vdev_start_req_arg *arg, FIELD_PREP(WMI_TLV_LEN, 0); /* Note: This is a nested TLV containing: - * [wmi_tlv][wmi_p2p_noa_descriptor][wmi_tlv].. + * [wmi_tlv][ath11k_wmi_p2p_noa_descriptor][wmi_tlv].. */ ptr += sizeof(*tlv); @@ -8645,6 +8650,64 @@ static void ath11k_wmi_gtk_offload_status_event(struct ath11k_base *ab, kfree(tb); } +static int ath11k_wmi_p2p_noa_event(struct ath11k_base *ab, + struct sk_buff *skb) +{ + const void **tb; + const struct wmi_p2p_noa_event *ev; + const struct ath11k_wmi_p2p_noa_info *noa; + struct ath11k *ar; + int ret, vdev_id; + u8 noa_descriptors; + + tb = ath11k_wmi_tlv_parse_alloc(ab, skb, GFP_ATOMIC); + if (IS_ERR(tb)) { + ret = PTR_ERR(tb); + ath11k_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) { + ret = -EPROTO; + goto out; + } + + vdev_id = ev->vdev_id; + noa_descriptors = u32_get_bits(noa->noa_attr, + WMI_P2P_NOA_INFO_DESC_NUM); + + if (noa_descriptors > WMI_P2P_MAX_NOA_DESCRIPTORS) { + ath11k_warn(ab, "invalid descriptor num %d in P2P NoA event\n", + noa_descriptors); + return -EINVAL; + goto out; + } + + ath11k_dbg(ab, ATH11K_DBG_WMI, + "wmi tlv p2p noa vdev_id %i descriptors %u\n", + vdev_id, noa_descriptors); + + rcu_read_lock(); + ar = ath11k_mac_get_ar_by_vdev_id(ab, vdev_id); + if (!ar) { + ath11k_warn(ab, "invalid vdev id %d in P2P NoA event\n", + vdev_id); + ret = -EINVAL; + goto unlock; + } + + ath11k_p2p_noa_update_by_vdev_id(ar, vdev_id, noa); + +unlock: + rcu_read_unlock(); +out: + kfree(tb); + return 0; +} + static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb) { struct wmi_cmd_hdr *cmd_hdr; @@ -8772,6 +8835,9 @@ static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb) case WMI_GTK_OFFLOAD_STATUS_EVENTID: ath11k_wmi_gtk_offload_status_event(ab, skb); break; + case WMI_P2P_NOA_EVENTID: + ath11k_wmi_p2p_noa_event(ab, skb); + break; default: ath11k_dbg(ab, ATH11K_DBG_WMI, "unsupported event id 0x%x\n", id); break; diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h index 4c20202947c7..564f4a9ac8ce 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.h +++ b/drivers/net/wireless/ath/ath11k/wmi.h @@ -3630,6 +3630,37 @@ struct wmi_ftm_event_msg { u8 data[]; } __packed; +#define WMI_P2P_MAX_NOA_DESCRIPTORS 4 + +struct wmi_p2p_noa_event { + u32 vdev_id; +} __packed; + +struct ath11k_wmi_p2p_noa_descriptor { + u32 type_count; /* 255: continuous schedule, 0: reserved */ + u32 duration; /* Absent period duration in micro seconds */ + u32 interval; /* Absent period interval in micro seconds */ + u32 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 ath11k_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 + */ + u32 noa_attr; + struct ath11k_wmi_p2p_noa_descriptor descriptors[WMI_P2P_MAX_NOA_DESCRIPTORS]; +} __packed; + #define WMI_BEACON_TX_BUFFER_SIZE 512 #define WMI_EMA_TMPL_IDX_SHIFT 8