From 7005eafc1f1cb0a525631c2214f760d6fb636ebb Mon Sep 17 00:00:00 2001 From: Wen Gong Date: Thu, 14 Nov 2019 19:19:31 +0800 Subject: [PATCH] ath10k: report rssi of each chain to mac80211 for sdio iw command only show rssi without each chain's rssi on sdio iw wlan0 station dump Station a0:40:a0:93:3e:de (on wlan0) signal: -82 dBm signal avg: -82 dBm after this patch, it will show each chain's rssi on sdio Station a0:40:a0:93:3e:de (on wlan0) signal: -82 [-84, -88] dBm signal avg: -82 [-84, -87] dBm For QCA6174 PCIe, the ppdu have the correct rssi of each chain, it indicate rssi of rx data by ath10k_htt_rx_h_signal. For sdio chip, the rssi of each chain stored in rx management reported by firmware, the ath10k_wmi_tlv_op_pull_mgmt_rx_ev which used for tlv wmi will get the rssi of each chain and stored them in wmi_mgmt_rx_ev_arg, then indicate them to mac80211. For non-tlv wmi chip, it will not get the rssi of each chain and not indicate to mac80211, for non-tlv wmi chip, this patch will not have impact. For tlv wmi chip, if the rssi of chain in mgmt is valid, it will be indicate to mac80211, tested with QCA6174 PCIe/SDIO, the rssi of 2 chain in mgmt is valid. rssi of chains in mgmt of QCA6174 SDIO: 92096.652780: ath10k:ath10k_log_warn: ath10k_sdio mmc1:0001:1 rssi[0]:70 92096.657324: ath10k:ath10k_log_warn: ath10k_sdio mmc1:0001:1 rssi[1]:68 92096.662009: ath10k:ath10k_log_warn: ath10k_sdio mmc1:0001:1 rssi[2]:128 92096.666647: ath10k:ath10k_log_warn: ath10k_sdio mmc1:0001:1 rssi[3]:128 rssi of chains in mgmt of QCA6174 PCIe: [ 1581.049816] ath10k_pci 0000:02:00.0: mgmt rssi[0]:17 [ 1581.049818] ath10k_pci 0000:02:00.0: mgmt rssi[1]:22 [ 1581.049821] ath10k_pci 0000:02:00.0: mgmt rssi[2]:128 [ 1581.049823] ath10k_pci 0000:02:00.0: mgmt rssi[3]:128 after apply this patch, the iw's rssi of PCIe do not changed, result is same with before. iw wlan0 station dump of QCA6174 PCIe: Station 6c:e8:73:b8:92:dc (on wlan0) signal: -70 [-77, -72] dBm signal avg: -69 [-78, -72] dBm iw wlan-5000mhz station dump of QCA9984 PCIe connected with 2 client which has 2 chain: Station 70:48:0f:1f:1a:b2 (on wlan-5000mhz) signal: -47 [-55, -48, -87, -88] dBm signal avg: -42 [-50, -43, -83, -86] dBm Station ac:c1:ee:39:e3:83 (on wlan-5000mhz) signal: -43 [-46, -45, -79, -84] dBm signal avg: -43 [-46, -46, -82, -83] dBm Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00017-QCARMSWP-1. Tested with QCA6174 PCIe with firmware WLAN.RM.4.4.1-00110-QCARMSWP-1. Tested with QCA9984 PCIe with firmware 10.4-3.9.0.2-00040. Signed-off-by: Wen Gong Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/htt_rx.c | 1 - drivers/net/wireless/ath/ath10k/wmi-tlv.c | 5 ++++- drivers/net/wireless/ath/ath10k/wmi.c | 18 ++++++++++++++++-- drivers/net/wireless/ath/ath10k/wmi.h | 2 ++ 4 files changed, 22 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index edda6dd..0f1f71e 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -2239,7 +2239,6 @@ static bool ath10k_htt_rx_proc_rx_ind_hl(struct ath10k_htt *htt, rx_status = IEEE80211_SKB_RXCB(skb); memset(rx_status, 0, sizeof(*rx_status)); - rx_status->chains |= BIT(0); if (rx->ppdu.combined_rssi == 0) { /* SDIO firmware does not provide signal */ rx_status->signal = 0; diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c index 7b35848..4e68deb 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -841,7 +841,7 @@ static int ath10k_wmi_tlv_op_pull_mgmt_rx_ev(struct ath10k *ar, const struct wmi_tlv_mgmt_rx_ev *ev; const u8 *frame; u32 msdu_len; - int ret; + int ret, i; tb = ath10k_wmi_tlv_parse_alloc(ar, skb->data, skb->len, GFP_ATOMIC); if (IS_ERR(tb)) { @@ -865,6 +865,9 @@ static int ath10k_wmi_tlv_op_pull_mgmt_rx_ev(struct ath10k *ar, arg->phy_mode = ev->phy_mode; arg->rate = ev->rate; + for (i = 0; i < ARRAY_SIZE(ev->rssi); i++) + arg->rssi[i] = ev->rssi[i]; + msdu_len = __le32_to_cpu(arg->buf_len); if (skb->len < (frame - skb->data) + msdu_len) { diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 9f564e2..13f7531 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -2463,10 +2463,10 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb) u32 rx_status; u32 channel; u32 phy_mode; - u32 snr; + u32 snr, rssi; u32 rate; u16 fc; - int ret; + int ret, i; ret = ath10k_wmi_pull_mgmt_rx(ar, skb, &arg); if (ret) { @@ -2525,6 +2525,20 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb) status->freq = ieee80211_channel_to_frequency(channel, status->band); status->signal = snr + ATH10K_DEFAULT_NOISE_FLOOR; + + BUILD_BUG_ON(ARRAY_SIZE(status->chain_signal) != ARRAY_SIZE(arg.rssi)); + + for (i = 0; i < ARRAY_SIZE(status->chain_signal); i++) { + status->chains &= ~BIT(i); + rssi = __le32_to_cpu(arg.rssi[i]); + ath10k_dbg(ar, ATH10K_DBG_MGMT, "mgmt rssi[%d]:%d\n", i, arg.rssi[i]); + + if (rssi != ATH10K_INVALID_RSSI && rssi != 0) { + status->chain_signal[i] = ATH10K_DEFAULT_NOISE_FLOOR + rssi; + status->chains |= BIT(i); + } + } + status->rate_idx = ath10k_mac_bitrate_to_idx(sband, rate / 100); hdr = (struct ieee80211_hdr *)skb->data; diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h index 74adce1..972d53d 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.h +++ b/drivers/net/wireless/ath/ath10k/wmi.h @@ -6786,6 +6786,7 @@ struct wmi_peer_delete_resp_ev_arg { struct wmi_mac_addr peer_addr; }; +#define WMI_MGMT_RX_NUM_RSSI 4 struct wmi_mgmt_rx_ev_arg { __le32 channel; __le32 snr; @@ -6794,6 +6795,7 @@ struct wmi_mgmt_rx_ev_arg { __le32 buf_len; __le32 status; /* %WMI_RX_STATUS_ */ struct wmi_mgmt_rx_ext_info ext_info; + __le32 rssi[WMI_MGMT_RX_NUM_RSSI]; }; struct wmi_ch_info_ev_arg { -- 2.7.4