diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/htt_rx.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/htt_rx.c | 137 |
1 files changed, 131 insertions, 6 deletions
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 0b4c156..86d082c 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -1463,8 +1463,7 @@ static int ath10k_unchain_msdu(struct sk_buff_head *amsdu) } static void ath10k_htt_rx_h_unchain(struct ath10k *ar, - struct sk_buff_head *amsdu, - bool chained) + struct sk_buff_head *amsdu) { struct sk_buff *first; struct htt_rx_desc *rxd; @@ -1475,9 +1474,6 @@ static void ath10k_htt_rx_h_unchain(struct ath10k *ar, decap = MS(__le32_to_cpu(rxd->msdu_start.common.info1), RX_MSDU_START_INFO1_DECAP_FORMAT); - if (!chained) - return; - /* FIXME: Current unchaining logic can only handle simple case of raw * msdu chaining. If decapping is other than raw the chaining may be * more complex and this isn't handled by the current code. Don't even @@ -1555,7 +1551,11 @@ static int ath10k_htt_rx_handle_amsdu(struct ath10k_htt *htt) num_msdus = skb_queue_len(&amsdu); ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff); - ath10k_htt_rx_h_unchain(ar, &amsdu, ret > 0); + + /* only for ret = 1 indicates chained msdus */ + if (ret > 0) + ath10k_htt_rx_h_unchain(ar, &amsdu); + ath10k_htt_rx_h_filter(ar, &amsdu, rx_status); ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status); ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status); @@ -2194,6 +2194,128 @@ void ath10k_htt_htc_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) dev_kfree_skb_any(skb); } +static inline bool is_valid_legacy_rate(u8 rate) +{ + static const u8 legacy_rates[] = {1, 2, 5, 11, 6, 9, 12, + 18, 24, 36, 48, 54}; + int i; + + for (i = 0; i < ARRAY_SIZE(legacy_rates); i++) { + if (rate == legacy_rates[i]) + return true; + } + + return false; +} + +static void +ath10k_update_per_peer_tx_stats(struct ath10k *ar, + struct ieee80211_sta *sta, + struct ath10k_per_peer_tx_stats *peer_stats) +{ + struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv; + u8 rate = 0, sgi; + struct rate_info txrate; + + lockdep_assert_held(&ar->data_lock); + + txrate.flags = ATH10K_HW_PREAMBLE(peer_stats->ratecode); + txrate.bw = ATH10K_HW_BW(peer_stats->flags); + txrate.nss = ATH10K_HW_NSS(peer_stats->ratecode); + txrate.mcs = ATH10K_HW_MCS_RATE(peer_stats->ratecode); + sgi = ATH10K_HW_GI(peer_stats->flags); + + if (((txrate.flags == WMI_RATE_PREAMBLE_HT) || + (txrate.flags == WMI_RATE_PREAMBLE_VHT)) && txrate.mcs > 9) { + ath10k_warn(ar, "Invalid mcs %hhd peer stats", txrate.mcs); + return; + } + + if (txrate.flags == WMI_RATE_PREAMBLE_CCK || + txrate.flags == WMI_RATE_PREAMBLE_OFDM) { + rate = ATH10K_HW_LEGACY_RATE(peer_stats->ratecode); + + if (!is_valid_legacy_rate(rate)) { + ath10k_warn(ar, "Invalid legacy rate %hhd peer stats", + rate); + return; + } + + /* This is hacky, FW sends CCK rate 5.5Mbps as 6 */ + rate *= 10; + if (rate == 60 && txrate.flags == WMI_RATE_PREAMBLE_CCK) + rate = rate - 5; + arsta->txrate.legacy = rate * 10; + } else if (txrate.flags == WMI_RATE_PREAMBLE_HT) { + arsta->txrate.flags = RATE_INFO_FLAGS_MCS; + arsta->txrate.mcs = txrate.mcs; + } else { + arsta->txrate.flags = RATE_INFO_FLAGS_VHT_MCS; + arsta->txrate.mcs = txrate.mcs; + } + + if (sgi) + arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; + + arsta->txrate.nss = txrate.nss; + arsta->txrate.bw = txrate.bw + RATE_INFO_BW_20; +} + +static void ath10k_htt_fetch_peer_stats(struct ath10k *ar, + struct sk_buff *skb) +{ + struct htt_resp *resp = (struct htt_resp *)skb->data; + struct ath10k_per_peer_tx_stats *p_tx_stats = &ar->peer_tx_stats; + struct htt_per_peer_tx_stats_ind *tx_stats; + struct ieee80211_sta *sta; + struct ath10k_peer *peer; + int peer_id, i; + u8 ppdu_len, num_ppdu; + + num_ppdu = resp->peer_tx_stats.num_ppdu; + ppdu_len = resp->peer_tx_stats.ppdu_len * sizeof(__le32); + + if (skb->len < sizeof(struct htt_resp_hdr) + num_ppdu * ppdu_len) { + ath10k_warn(ar, "Invalid peer stats buf length %d\n", skb->len); + return; + } + + tx_stats = (struct htt_per_peer_tx_stats_ind *) + (resp->peer_tx_stats.payload); + peer_id = __le16_to_cpu(tx_stats->peer_id); + + rcu_read_lock(); + spin_lock_bh(&ar->data_lock); + peer = ath10k_peer_find_by_id(ar, peer_id); + if (!peer) { + ath10k_warn(ar, "Invalid peer id %d peer stats buffer\n", + peer_id); + goto out; + } + + sta = peer->sta; + for (i = 0; i < num_ppdu; i++) { + tx_stats = (struct htt_per_peer_tx_stats_ind *) + (resp->peer_tx_stats.payload + i * ppdu_len); + + p_tx_stats->succ_bytes = __le32_to_cpu(tx_stats->succ_bytes); + p_tx_stats->retry_bytes = __le32_to_cpu(tx_stats->retry_bytes); + p_tx_stats->failed_bytes = + __le32_to_cpu(tx_stats->failed_bytes); + p_tx_stats->ratecode = tx_stats->ratecode; + p_tx_stats->flags = tx_stats->flags; + p_tx_stats->succ_pkts = __le16_to_cpu(tx_stats->succ_pkts); + p_tx_stats->retry_pkts = __le16_to_cpu(tx_stats->retry_pkts); + p_tx_stats->failed_pkts = __le16_to_cpu(tx_stats->failed_pkts); + + ath10k_update_per_peer_tx_stats(ar, sta, p_tx_stats); + } + +out: + spin_unlock_bh(&ar->data_lock); + rcu_read_unlock(); +} + bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) { struct ath10k_htt *htt = &ar->htt; @@ -2354,6 +2476,9 @@ bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) case HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND: ath10k_htt_rx_tx_mode_switch_ind(ar, skb); break; + case HTT_T2H_MSG_TYPE_PEER_STATS: + ath10k_htt_fetch_peer_stats(ar, skb); + break; case HTT_T2H_MSG_TYPE_EN_STATS: default: ath10k_warn(ar, "htt event (%d) not handled\n", |
