Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:58350 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726401AbeIXNIW (ORCPT ); Mon, 24 Sep 2018 09:08:22 -0400 From: Anilkumar Kolli To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Anilkumar Kolli Subject: [RFC v4 2/2] ath10k: report tx rate using ieee80211_tx_rate_update() Date: Mon, 24 Sep 2018 12:40:00 +0530 Message-Id: <1537773000-2587-3-git-send-email-akolli@codeaurora.org> (sfid-20180924_090804_631975_9A1872D1) In-Reply-To: <1537773000-2587-1-git-send-email-akolli@codeaurora.org> References: <1537773000-2587-1-git-send-email-akolli@codeaurora.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: Mesh path metric needs tx rate information from ieee80211_tx_status() call but in ath10k there is no mechanism to report tx rate information via ieee80211_tx_status(), the tx rate is only accessible via sta_statiscs() op. Per peer tx stats has tx rate info available, Tx rate is available to ath10k driver after every 4 PPDU sent in the air. For each PPDU, ath10k driver updates rate informattion to mac80211 using ieee80211_tx_rate_update(). Per peer txrate information is updated through per peer statistics and is available for QCA9888/QCA9984/QCA4019/QCA998X only Tested on QCA9984 with firmware-5.bin_10.4-3.5.3-00053 Tested on QCA998X with firmware-5.bin_10.2.4-1.0-00036 Signed-off-by: Anilkumar Kolli --- V3: - added new API to update tx rate alone. - Tx rate is updated for each PPDUs sent drivers/net/wireless/ath/ath10k/core.h | 1 + drivers/net/wireless/ath/ath10k/htt_rx.c | 66 ++++++++++++++++++++++++++++-- drivers/net/wireless/ath/ath10k/wmi.h | 1 + 3 files changed, 64 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h index f6e5c29f74e7..abeed6cdc4ae 100644 --- a/drivers/net/wireless/ath/ath10k/core.h +++ b/drivers/net/wireless/ath/ath10k/core.h @@ -493,6 +493,7 @@ struct ath10k_sta { u32 smps; u16 peer_id; struct rate_info txrate; + struct ieee80211_tx_info tx_info; struct work_struct update_wk; u64 rx_duration; diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index f2405258a6d3..355c39a0486c 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -2753,8 +2753,11 @@ static inline int ath10k_get_legacy_rate_idx(struct ath10k *ar, u8 rate) struct ath10k_per_peer_tx_stats *peer_stats) { struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv; - u8 rate = 0, rate_idx = 0, sgi; + struct ieee80211_chanctx_conf *conf = NULL; struct rate_info txrate; + u8 rate = 0, sgi; + int rate_idx = 0; + bool skip_auto_rate; lockdep_assert_held(&ar->data_lock); @@ -2763,6 +2766,13 @@ static inline int ath10k_get_legacy_rate_idx(struct ath10k *ar, u8 rate) txrate.nss = ATH10K_HW_NSS(peer_stats->ratecode); txrate.mcs = ATH10K_HW_MCS_RATE(peer_stats->ratecode); sgi = ATH10K_HW_GI(peer_stats->flags); + skip_auto_rate = ATH10K_FW_SKIPPED_RATE_CTRL(peer_stats->flags); + + /* Firmware's rate control skips broadcast/management frames, + * if host has configure fixed rates and in some other special cases. + */ + if (skip_auto_rate) + return; if (txrate.flags == WMI_RATE_PREAMBLE_VHT && txrate.mcs > 9) { ath10k_warn(ar, "Invalid VHT mcs %hhd peer stats", txrate.mcs); @@ -2777,7 +2787,7 @@ static inline int ath10k_get_legacy_rate_idx(struct ath10k *ar, u8 rate) } memset(&arsta->txrate, 0, sizeof(arsta->txrate)); - + memset(&arsta->tx_info.status, 0, sizeof(arsta->tx_info.status)); if (txrate.flags == WMI_RATE_PREAMBLE_CCK || txrate.flags == WMI_RATE_PREAMBLE_OFDM) { rate = ATH10K_HW_LEGACY_RATE(peer_stats->ratecode); @@ -2796,11 +2806,59 @@ static inline int ath10k_get_legacy_rate_idx(struct ath10k *ar, u8 rate) arsta->txrate.mcs = txrate.mcs; } - if (sgi) - arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; + switch (txrate.flags) { + case WMI_RATE_PREAMBLE_OFDM: + if (arsta->arvif && arsta->arvif->vif) + conf = rcu_dereference(arsta->arvif->vif->chanctx_conf); + if (conf && conf->def.chan->band == NL80211_BAND_5GHZ) + arsta->tx_info.status.rates[0].idx = rate_idx - 4; + break; + case WMI_RATE_PREAMBLE_CCK: + arsta->tx_info.status.rates[0].idx = rate_idx; + if (sgi) + arsta->tx_info.status.rates[0].flags |= + (IEEE80211_TX_RC_USE_SHORT_PREAMBLE | + IEEE80211_TX_RC_SHORT_GI); + break; + case WMI_RATE_PREAMBLE_HT: + arsta->tx_info.status.rates[0].idx = + txrate.mcs + ((txrate.nss - 1) * 8); + if (sgi) + arsta->tx_info.status.rates[0].flags |= + IEEE80211_TX_RC_SHORT_GI; + arsta->tx_info.status.rates[0].flags |= IEEE80211_TX_RC_MCS; + break; + case WMI_RATE_PREAMBLE_VHT: + ieee80211_rate_set_vht(&arsta->tx_info.status.rates[0], + txrate.mcs, txrate.nss); + if (sgi) + arsta->tx_info.status.rates[0].flags |= + IEEE80211_TX_RC_SHORT_GI; + arsta->tx_info.status.rates[0].flags |= IEEE80211_TX_RC_VHT_MCS; + break; + } arsta->txrate.nss = txrate.nss; arsta->txrate.bw = ath10k_bw_to_mac80211_bw(txrate.bw); + if (sgi) + arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; + + switch (arsta->txrate.bw) { + case RATE_INFO_BW_40: + arsta->tx_info.status.rates[0].flags |= + IEEE80211_TX_RC_40_MHZ_WIDTH; + break; + case RATE_INFO_BW_80: + arsta->tx_info.status.rates[0].flags |= + IEEE80211_TX_RC_80_MHZ_WIDTH; + break; + } + + if (peer_stats->succ_pkts) { + arsta->tx_info.flags = IEEE80211_TX_STAT_ACK; + arsta->tx_info.status.rates[0].count = 1; + ieee80211_tx_rate_update(ar->hw, sta, &arsta->tx_info); + } if (ath10k_debug_is_extd_tx_stats_enabled(ar)) ath10k_accumulate_per_peer_tx_stats(ar, arsta, peer_stats, diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h index 15622943a885..f6799f3939bd 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.h +++ b/drivers/net/wireless/ath/ath10k/wmi.h @@ -4968,6 +4968,7 @@ enum wmi_rate_preamble { (((preamble) << 6) | ((nss) << 4) | (rate)) #define ATH10K_HW_AMPDU(flags) ((flags) & 0x1) #define ATH10K_HW_BA_FAIL(flags) (((flags) >> 1) & 0x3) +#define ATH10K_FW_SKIPPED_RATE_CTRL(flags) (((flags) >> 6) & 0x1) #define ATH10K_VHT_MCS_NUM 10 #define ATH10K_BW_NUM 4 -- 1.7.9.5