From patchwork Fri Feb 11 15:07:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Venkateswara Naralasetty \(QUIC\)" X-Patchwork-Id: 542504 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6983C4332F for ; Fri, 11 Feb 2022 15:08:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351229AbiBKPIY (ORCPT ); Fri, 11 Feb 2022 10:08:24 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:57176 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351227AbiBKPIW (ORCPT ); Fri, 11 Feb 2022 10:08:22 -0500 Received: from alexa-out-sd-01.qualcomm.com (alexa-out-sd-01.qualcomm.com [199.106.114.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6349530D for ; Fri, 11 Feb 2022 07:08:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1644592100; x=1676128100; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=WS55KOAa2Ac9Mi1dthF4LSFjepf8/FLtLDumfVlEVKQ=; b=RL41dftswAuuwTQ4JZa957hNPrAiVn0dMXri4QXtO4kec8w5x02P5flf LUy6rfukm/lLXZuNhbHsbiIeid7hGBsjVThRkd6n0Ht8/WGhxNKi5O6AA zXdetxxp+CGBOp8fBTi4IzVtMnsVwzjv8WMZ6Oj1fkfKZXcGDMuZyUv0k w=; Received: from unknown (HELO ironmsg02-sd.qualcomm.com) ([10.53.140.142]) by alexa-out-sd-01.qualcomm.com with ESMTP; 11 Feb 2022 07:08:20 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg02-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Feb 2022 07:08:20 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.15; Fri, 11 Feb 2022 07:08:19 -0800 Received: from vnaralas-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Fri, 11 Feb 2022 07:08:17 -0800 From: Venkateswara Naralasetty To: CC: , Venkateswara Naralasetty Subject: [PATCH 6/6] ath11k: Register handler for CFR capture event Date: Fri, 11 Feb 2022 20:37:55 +0530 Message-ID: <1644592075-27082-7-git-send-email-quic_vnaralas@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1644592075-27082-1-git-send-email-quic_vnaralas@quicinc.com> References: <1644592075-27082-1-git-send-email-quic_vnaralas@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Firmware sends CFR meta data through the WMI event WMI_PEER_CFR_CAPTURE_EVENT. Parse the meta data coming from the firmware and invoke correlate_and_relay function to correlate the CFR meta data with the CFR payload coming from the other WMI event WMI_PDEV_DMA_RING_BUF_RELEASE_EVENT. Release the buffer to user space once correlate and relay return success. Tested-on: IPQ8074 WLAN.HK.2.5.0.1-00991-QCAHKSWPL_SILICONZ-1 Signed-off-by: Venkateswara Naralasetty --- drivers/net/wireless/ath/ath11k/cfr.c | 152 ++++++++++++++++++++++++++++++++++ drivers/net/wireless/ath/ath11k/cfr.h | 62 +++++++++++++- drivers/net/wireless/ath/ath11k/wmi.c | 90 ++++++++++++++++++++ drivers/net/wireless/ath/ath11k/wmi.h | 44 ++++++++++ 4 files changed, 347 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath11k/cfr.c b/drivers/net/wireless/ath/ath11k/cfr.c index e2ad690..1814e4b 100644 --- a/drivers/net/wireless/ath/ath11k/cfr.c +++ b/drivers/net/wireless/ath/ath11k/cfr.c @@ -247,6 +247,158 @@ static int ath11k_cfr_process_data(struct ath11k *ar, return status; } +static void ath11k_cfr_fill_hdr_info(struct ath11k *ar, + struct ath11k_csi_cfr_header *header, + struct ath11k_cfr_peer_tx_param *params) +{ + header->cfr_metadata_version = ATH11K_CFR_META_VERSION_4; + header->cfr_data_version = ATH11K_CFR_DATA_VERSION_1; + header->cfr_metadata_len = sizeof(struct cfr_metadata); + header->chip_type = ar->ab->hw_rev; + header->meta_data.status = FIELD_GET(WMI_CFR_PEER_CAPTURE_STATUS, + params->status); + header->meta_data.capture_bw = params->bandwidth; + header->meta_data.phy_mode = params->phy_mode; + header->meta_data.prim20_chan = params->primary_20mhz_chan; + header->meta_data.center_freq1 = params->band_center_freq1; + header->meta_data.center_freq2 = params->band_center_freq2; + + /* Currently CFR data is captured on ACK of a Qos NULL frame. + * For 20 MHz, ACK is Legacy and for 40/80/160, ACK is DUP Legacy. + */ + header->meta_data.capture_mode = params->bandwidth ? + ATH11K_CFR_CAPTURE_DUP_LEGACY_ACK : ATH11K_CFR_CAPTURE_LEGACY_ACK; + header->meta_data.capture_type = params->capture_method; + header->meta_data.num_rx_chain = ar->num_rx_chains; + header->meta_data.sts_count = params->spatial_streams; + header->meta_data.timestamp = params->timestamp_us; + ether_addr_copy(header->meta_data.peer_addr, params->peer_mac_addr); + memcpy(header->meta_data.chain_rssi, params->chain_rssi, + sizeof(params->chain_rssi)); + memcpy(header->meta_data.chain_phase, params->chain_phase, + sizeof(params->chain_phase)); + memcpy(header->meta_data.agc_gain, params->agc_gain, + sizeof(params->agc_gain)); +} + +int ath11k_process_cfr_capture_event(struct ath11k_base *ab, + struct ath11k_cfr_peer_tx_param *params) +{ + struct ath11k *ar; + struct ath11k_cfr *cfr; + struct ath11k_vif *arvif; + struct ath11k_look_up_table *lut = NULL; + struct ath11k_dbring_element *buff; + struct ath11k_csi_cfr_header *header; + dma_addr_t buf_addr; + u32 end_magic = ATH11K_CFR_END_MAGIC; + u8 tx_status; + int status; + int i; + + rcu_read_lock(); + arvif = ath11k_mac_get_arvif_by_vdev_id(ab, params->vdev_id); + if (!arvif) { + rcu_read_unlock(); + ath11k_warn(ab, "Failed to get arvif for vdev id %d\n", + params->vdev_id); + return -ENOENT; + } + + ar = arvif->ar; + cfr = &ar->cfr; + rcu_read_unlock(); + + if (WMI_CFR_CAPTURE_STATUS_PEER_PS & params->status) { + ath11k_dbg(ab, ATH11K_DBG_CFR, + "CFR capture failed as peer %pM is in powersave", + params->peer_mac_addr); + return -EINVAL; + } + + if (!(WMI_CFR_PEER_CAPTURE_STATUS & params->status)) { + ath11k_dbg(ab, ATH11K_DBG_CFR, + "CFR capture failed for the peer : %pM", + params->peer_mac_addr); + cfr->tx_peer_status_cfr_fail++; + return -EINVAL; + } + + tx_status = FIELD_GET(WMI_CFR_FRAME_TX_STATUS, params->status); + + if (tx_status != WMI_FRAME_TX_STATUS_OK) { + ath11k_dbg(ab, ATH11K_DBG_CFR, + "WMI tx status %d for the peer %pM", + tx_status, params->peer_mac_addr); + cfr->tx_evt_status_cfr_fail++; + return -EINVAL; + } + + buf_addr = (((u64)FIELD_GET(WMI_CFR_CORRELATION_INFO2_BUF_ADDR_HIGH, + params->correlation_info_2)) << 32) | + params->correlation_info_1; + + spin_lock_bh(&cfr->lut_lock); + + if (!cfr->lut) { + spin_unlock_bh(&cfr->lut_lock); + return -EINVAL; + } + + for (i = 0; i < cfr->lut_num; i++) { + struct ath11k_look_up_table *temp = &cfr->lut[i]; + + if (temp->dbr_address == buf_addr) { + lut = &cfr->lut[i]; + break; + } + } + + if (!lut) { + spin_unlock_bh(&cfr->lut_lock); + ath11k_dbg(ab, ATH11K_DBG_CFR, + "lut failure to process tx event\n"); + cfr->tx_dbr_lookup_fail++; + return -EINVAL; + } + + lut->tx_ppdu_id = FIELD_GET(WMI_CFR_CORRELATION_INFO2_PPDU_ID, + params->correlation_info_2); + lut->tx_address1 = params->correlation_info_1; + lut->tx_address2 = params->correlation_info_2; + lut->txrx_tstamp = jiffies; + + header = &lut->header; + header->start_magic_num = ATH11K_CFR_START_MAGIC; + header->vendorid = VENDOR_QCA; + header->platform_type = PLATFORM_TYPE_ARM; + + ath11k_cfr_fill_hdr_info(ar, header, params); + + status = ath11k_cfr_correlate_and_relay(ar, lut, + ATH11K_CORRELATE_TX_EVENT); + if (status == ATH11K_CORRELATE_STATUS_RELEASE) { + ath11k_dbg(ab, ATH11K_DBG_CFR, + "Releasing CFR data to user space"); + ath11k_cfr_rfs_write(ar, &lut->header, + sizeof(struct ath11k_csi_cfr_header), + lut->data, lut->data_len, + &end_magic, sizeof(u32)); + buff = lut->buff; + ath11k_cfr_release_lut_entry(lut); + + ath11k_dbring_bufs_replenish(ar, &cfr->rx_ring, buff, + WMI_DIRECT_BUF_CFR); + } else if (status == ATH11K_CORRELATE_STATUS_HOLD) { + ath11k_dbg(ab, ATH11K_DBG_CFR, + "dbr event is not yet received holding buf\n"); + } + + spin_unlock_bh(&cfr->lut_lock); + + return 0; +} + /* Helper function to check whether the given peer mac address * is in unassociated peer pool or not. */ diff --git a/drivers/net/wireless/ath/ath11k/cfr.h b/drivers/net/wireless/ath/ath11k/cfr.h index 7ea4bb8..ca45632 100644 --- a/drivers/net/wireless/ath/ath11k/cfr.h +++ b/drivers/net/wireless/ath/ath11k/cfr.h @@ -24,8 +24,37 @@ struct ath11k_sta; struct ath11k_per_peer_cfr_capture; +#define ATH11K_CFR_START_MAGIC 0xDEADBEAF #define ATH11K_CFR_END_MAGIC 0xBEAFDEAD +#define VENDOR_QCA 0x8cfdf0 +#define PLATFORM_TYPE_ARM 2 + +enum ath11k_cfr_meta_version { + ATH11K_CFR_META_VERSION_NONE, + ATH11K_CFR_META_VERSION_1, + ATH11K_CFR_META_VERSION_2, + ATH11K_CFR_META_VERSION_3, + ATH11K_CFR_META_VERSION_4, + ATH11K_CFR_META_VERSION_MAX = 0xFF, +}; + +enum ath11k_cfr_data_version { + ATH11K_CFR_DATA_VERSION_NONE, + ATH11K_CFR_DATA_VERSION_1, + ATH11K_CFR_DATA_VERSION_MAX = 0xFF, +}; + +enum ath11k_cfr_capture_ack_mode { + ATH11K_CFR_CAPTURE_LEGACY_ACK, + ATH11K_CFR_CAPTURE_DUP_LEGACY_ACK, + ATH11K_CFR_CAPTURE_HT_ACK, + ATH11K_CFR_CAPTURE_VHT_ACK, + + /*Always keep this at last*/ + ATH11K_CFR_CAPTURE_INVALID_ACK +}; + enum ath11k_cfr_correlate_status { ATH11K_CORRELATE_STATUS_RELEASE, ATH11K_CORRELATE_STATUS_HOLD, @@ -38,6 +67,28 @@ enum ath11k_cfr_preamble_type { ATH11K_CFR_PREAMBLE_TYPE_VHT, }; +struct ath11k_cfr_peer_tx_param { + u32 capture_method; + u32 vdev_id; + u8 peer_mac_addr[ETH_ALEN]; + u32 primary_20mhz_chan; + u32 bandwidth; + u32 phy_mode; + u32 band_center_freq1; + u32 band_center_freq2; + u32 spatial_streams; + u32 correlation_info_1; + u32 correlation_info_2; + u32 status; + u32 timestamp_us; + u32 counter; + u32 chain_rssi[WMI_MAX_CHAINS]; + u16 chain_phase[WMI_MAX_CHAINS]; + u32 cfo_measurement; + u8 agc_gain[HOST_MAX_CHAINS]; + u32 rx_start_ts; +}; + struct cfr_metadata { u8 peer_addr[ETH_ALEN]; u8 status; @@ -67,7 +118,7 @@ struct ath11k_csi_cfr_header { u8 cfr_data_version; u8 chip_type; u8 platform_type; - u32 reserved; + u32 cfr_metadata_len; struct cfr_metadata meta_data; } __packed; @@ -183,6 +234,8 @@ int ath11k_cfr_send_peer_cfr_capture_cmd(struct ath11k *ar, const u8 *peer_mac); struct ath11k_dbring *ath11k_cfr_get_dbring(struct ath11k *ar); void ath11k_cfr_release_lut_entry(struct ath11k_look_up_table *lut); +int ath11k_process_cfr_capture_event(struct ath11k_base *ab, + struct ath11k_cfr_peer_tx_param *params); #else static inline int ath11k_cfr_init(struct ath11k_base *ab) @@ -240,5 +293,12 @@ struct ath11k_dbring *ath11k_cfr_get_dbring(struct ath11k *ar) { return NULL; } + +static inline +int ath11k_process_cfr_capture_event(struct ath11k_base *ab, + struct ath11k_cfr_peer_tx_param *params) +{ + return 0; +} #endif /* CONFIG_ATH11K_CFR */ #endif /* ATH11K_CFR_H */ diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index f945d45..e273db2 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -7819,6 +7819,93 @@ static void ath11k_wmi_twt_add_dialog_event(struct ath11k_base *ab, kfree(tb); } +static void ath11k_wmi_tlv_cfr_capture_event_fixed_param(const void *ptr, + void *data) +{ + struct ath11k_cfr_peer_tx_param *tx_params = data; + const struct ath11k_wmi_cfr_peer_tx_event_param *params = ptr; + + tx_params->capture_method = params->capture_method; + tx_params->vdev_id = params->vdev_id; + ether_addr_copy(tx_params->peer_mac_addr, params->mac_addr.addr); + tx_params->primary_20mhz_chan = params->chan_mhz; + tx_params->bandwidth = params->bandwidth; + tx_params->phy_mode = params->phy_mode; + tx_params->band_center_freq1 = params->band_center_freq1; + tx_params->band_center_freq2 = params->band_center_freq2; + tx_params->spatial_streams = params->sts_count; + tx_params->correlation_info_1 = params->correlation_info_1; + tx_params->correlation_info_2 = params->correlation_info_2; + tx_params->status = params->status; + tx_params->timestamp_us = params->timestamp_us; + tx_params->counter = params->counter; + tx_params->rx_start_ts = params->rx_start_ts; + + memcpy(tx_params->chain_rssi, params->chain_rssi, + sizeof(tx_params->chain_rssi)); + + if (WMI_CFR_CFO_MEASUREMENT_VALID & params->cfo_measurement) + tx_params->cfo_measurement = FIELD_GET(WMI_CFR_CFO_MEASUREMENT_RAW_DATA, + params->cfo_measurement); +} + +static void ath11k_wmi_tlv_cfr_capture_phase_fixed_param(const void *ptr, + void *data) +{ + struct ath11k_cfr_peer_tx_param *tx_params = data; + const struct ath11k_wmi_cfr_peer_tx_event_phase_param *params = ptr; + int i; + + for (i = 0; i < WMI_MAX_CHAINS; i++) { + tx_params->chain_phase[i] = params->chain_phase[i]; + tx_params->agc_gain[i] = params->agc_gain[i]; + } +} + +static int ath11k_wmi_tlv_cfr_capture_evt_parse(struct ath11k_base *ab, + u16 tag, u16 len, + const void *ptr, void *data) +{ + switch (tag) { + case WMI_TAG_PEER_CFR_CAPTURE_EVENT: + ath11k_wmi_tlv_cfr_capture_event_fixed_param(ptr, data); + break; + case WMI_TAG_CFR_CAPTURE_PHASE_PARAM: + ath11k_wmi_tlv_cfr_capture_phase_fixed_param(ptr, data); + break; + default: + ath11k_warn(ab, "Invalid tag received tag %d len %d\n", + tag, len); + return -EINVAL; + } + + return 0; +} + +static void ath11k_wmi_parse_cfr_capture_event(struct ath11k_base *ab, + struct sk_buff *skb) +{ + struct ath11k_cfr_peer_tx_param params = {}; + int ret; + + ath11k_dbg_dump(ab, ATH11K_DBG_CFR_DUMP, "cfr_dump:", "", + skb->data, skb->len); + + ret = ath11k_wmi_tlv_iter(ab, skb->data, skb->len, + ath11k_wmi_tlv_cfr_capture_evt_parse, + ¶ms); + if (ret) { + ath11k_warn(ab, "failed to parse cfr capture event tlv %d\n", + ret); + return; + } + + ret = ath11k_process_cfr_capture_event(ab, ¶ms); + if (ret) + ath11k_dbg(ab, ATH11K_DBG_CFR, + "failed to process cfr capture ret = %d\n", ret); +} + static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb) { struct wmi_cmd_hdr *cmd_hdr; @@ -7950,6 +8037,9 @@ static void ath11k_wmi_tlv_op_rx(struct ath11k_base *ab, struct sk_buff *skb) case WMI_DIAG_EVENTID: ath11k_wmi_diag_event(ab, skb); break; + case WMI_PEER_CFR_CAPTURE_EVENTID: + ath11k_wmi_parse_cfr_capture_event(ab, skb); + break; /* TODO: Add remaining events */ default: ath11k_dbg(ab, ATH11K_DBG_WMI, "Unknown eventid: 0x%x\n", id); diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h index 15357a0..1e22052 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.h +++ b/drivers/net/wireless/ath/ath11k/wmi.h @@ -1857,6 +1857,8 @@ enum wmi_tlv_tag { WMI_TAG_NDP_EVENT, WMI_TAG_PDEV_PEER_PKTLOG_FILTER_CMD = 0x301, WMI_TAG_PDEV_PEER_PKTLOG_FILTER_INFO, + WMI_TAG_PEER_CFR_CAPTURE_EVENT = 0x317, + WMI_TAG_CFR_CAPTURE_PHASE_PARAM = 0x33b, WMI_TAG_FILS_DISCOVERY_TMPL_CMD = 0x344, WMI_TAG_PDEV_SRG_BSS_COLOR_BITMAP_CMD = 0x37b, WMI_TAG_PDEV_SRG_PARTIAL_BSSID_BITMAP_CMD, @@ -3354,6 +3356,48 @@ enum ath11k_wmi_cfr_capture_method { WMI_CFR_CAPTURE_METHOD_MAX, }; +#define WMI_CFR_FRAME_TX_STATUS GENMASK(1, 0) +#define WMI_CFR_CAPTURE_STATUS_PEER_PS BIT(30) +#define WMI_CFR_PEER_CAPTURE_STATUS BIT(31) + +#define WMI_CFR_CORRELATION_INFO2_BUF_ADDR_HIGH GENMASK(3, 0) +#define WMI_CFR_CORRELATION_INFO2_PPDU_ID GENMASK(31, 16) + +#define WMI_CFR_CFO_MEASUREMENT_VALID BIT(0) +#define WMI_CFR_CFO_MEASUREMENT_RAW_DATA GENMASK(14, 1) + +struct ath11k_wmi_cfr_peer_tx_event_param { + u32 capture_method; + u32 vdev_id; + struct wmi_mac_addr mac_addr; + u32 chan_mhz; + u32 bandwidth; + u32 phy_mode; + u32 band_center_freq1; + u32 band_center_freq2; + u32 sts_count; + u32 correlation_info_1; + u32 correlation_info_2; + u32 status; + u32 timestamp_us; + u32 counter; + u32 chain_rssi[WMI_MAX_CHAINS]; + u32 cfo_measurement; + u32 rx_start_ts; +} __packed; + +struct ath11k_wmi_cfr_peer_tx_event_phase_param { + u32 chain_phase[WMI_MAX_CHAINS]; + u8 agc_gain[WMI_MAX_CHAINS]; +} __packed; + +enum ath11k_wmi_frame_tx_status { + WMI_FRAME_TX_STATUS_OK, + WMI_FRAME_TX_STATUS_XRETRY, + WMI_FRAME_TX_STATUS_DROP, + WMI_FRAME_TX_STATUS_FILTERED, +}; + struct wmi_peer_cfr_capture_conf_arg { enum ath11k_wmi_cfr_capture_bw bw; enum ath11k_wmi_cfr_capture_method method;