From 4c29ff7cb8fcfd4ba26942019837656ed0258cfb Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 6 Jun 2021 20:58:33 +0200 Subject: [PATCH] mac80211: add support for 802.3 encap offload with software rate control Signed-off-by: Felix Fietkau (cherry-picked from commit f2c6d892cacb5d884bdd638bc7574c1ee98514a5) --- ...te-control-support-for-encap-offload.patch | 119 ++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 package/kernel/mac80211/patches/subsys/376-mac80211-add-rate-control-support-for-encap-offload.patch diff --git a/package/kernel/mac80211/patches/subsys/376-mac80211-add-rate-control-support-for-encap-offload.patch b/package/kernel/mac80211/patches/subsys/376-mac80211-add-rate-control-support-for-encap-offload.patch new file mode 100644 index 0000000000..eefeaa4a8d --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/376-mac80211-add-rate-control-support-for-encap-offload.patch @@ -0,0 +1,119 @@ +From: Ryder Lee +Date: Fri, 28 May 2021 14:05:43 +0800 +Subject: [PATCH] mac80211: add rate control support for encap offload + +The software rate control cannot deal with encap offload, so fix it. + +Signed-off-by: Ryder Lee +--- + +--- a/net/mac80211/ieee80211_i.h ++++ b/net/mac80211/ieee80211_i.h +@@ -2024,6 +2024,15 @@ static inline void ieee80211_tx_skb(stru + ieee80211_tx_skb_tid(sdata, skb, 7); + } + ++static inline bool ieee80211_is_tx_data(struct sk_buff *skb) ++{ ++ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; ++ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); ++ ++ return info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP || ++ ieee80211_is_data(hdr->frame_control); ++} ++ + u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, + struct ieee802_11_elems *elems, + u64 filter, u32 crc, u8 *transmitter_bssid, +--- a/net/mac80211/rate.c ++++ b/net/mac80211/rate.c +@@ -297,15 +297,11 @@ void ieee80211_check_rate_mask(struct ie + static bool rc_no_data_or_no_ack_use_min(struct ieee80211_tx_rate_control *txrc) + { + struct sk_buff *skb = txrc->skb; +- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); +- __le16 fc; +- +- fc = hdr->frame_control; + + return (info->flags & (IEEE80211_TX_CTL_NO_ACK | + IEEE80211_TX_CTL_USE_MINRATE)) || +- !ieee80211_is_data(fc); ++ !ieee80211_is_tx_data(skb); + } + + static void rc_send_low_basicrate(struct ieee80211_tx_rate *rate, +@@ -870,7 +866,6 @@ void ieee80211_get_tx_rates(struct ieee8 + int max_rates) + { + struct ieee80211_sub_if_data *sdata; +- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_supported_band *sband; + +@@ -882,7 +877,7 @@ void ieee80211_get_tx_rates(struct ieee8 + sdata = vif_to_sdata(vif); + sband = sdata->local->hw.wiphy->bands[info->band]; + +- if (ieee80211_is_data(hdr->frame_control)) ++ if (ieee80211_is_tx_data(skb)) + rate_control_apply_mask(sdata, sta, sband, dest, max_rates); + + if (dest[0].idx < 0) +--- a/net/mac80211/tx.c ++++ b/net/mac80211/tx.c +@@ -679,6 +679,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021 + u32 len; + struct ieee80211_tx_rate_control txrc; + struct ieee80211_sta_rates *ratetbl = NULL; ++ bool encap = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP; + bool assoc = false; + + memset(&txrc, 0, sizeof(txrc)); +@@ -720,7 +721,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021 + * just wants a probe response. + */ + if (tx->sdata->vif.bss_conf.use_short_preamble && +- (ieee80211_is_data(hdr->frame_control) || ++ (ieee80211_is_tx_data(tx->skb) || + (tx->sta && test_sta_flag(tx->sta, WLAN_STA_SHORT_PREAMBLE)))) + txrc.short_preamble = true; + +@@ -742,7 +743,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021 + "%s: Dropped data frame as no usable bitrate found while " + "scanning and associated. Target station: " + "%pM on %d GHz band\n", +- tx->sdata->name, hdr->addr1, ++ tx->sdata->name, ++ encap ? ((struct ethhdr *)hdr)->h_dest : hdr->addr1, + info->band ? 5 : 2)) + return TX_DROP; + +@@ -776,7 +778,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee8021 + + if (txrc.reported_rate.idx < 0) { + txrc.reported_rate = tx->rate; +- if (tx->sta && ieee80211_is_data(hdr->frame_control)) ++ if (tx->sta && ieee80211_is_tx_data(tx->skb)) + tx->sta->tx_stats.last_rate = txrc.reported_rate; + } else if (tx->sta) + tx->sta->tx_stats.last_rate = txrc.reported_rate; +@@ -3662,8 +3664,16 @@ begin: + else + info->flags &= ~IEEE80211_TX_CTL_AMPDU; + +- if (info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) ++ if (info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) { ++ if (!ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { ++ r = ieee80211_tx_h_rate_ctrl(&tx); ++ if (r != TX_CONTINUE) { ++ ieee80211_free_txskb(&local->hw, skb); ++ goto begin; ++ } ++ } + goto encap_out; ++ } + + if (info->control.flags & IEEE80211_TX_CTRL_FAST_XMIT) { + struct sta_info *sta = container_of(txq->sta, struct sta_info, -- 2.30.2