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-rw-r--r--net/mac80211/iface.c1
-rw-r--r--net/mac80211/tx.c283
2 files changed, 187 insertions, 97 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 7b2843df3813..d49a5906a943 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -2178,6 +2178,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
ndev->hw_features |= ndev->features &
MAC80211_SUPPORTED_FEATURES_TX;
+ sdata->vif.netdev_features = local->hw.netdev_features;
netdev_set_default_ethtool_ops(ndev, &ieee80211_ethtool_ops);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 774e62860c45..2171cd1ca807 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1355,7 +1355,11 @@ static struct txq_info *ieee80211_get_txq(struct ieee80211_local *local,
static void ieee80211_set_skb_enqueue_time(struct sk_buff *skb)
{
- IEEE80211_SKB_CB(skb)->control.enqueue_time = codel_get_time();
+ struct sk_buff *next;
+ codel_time_t now = codel_get_time();
+
+ skb_list_walk_safe(skb, skb, next)
+ IEEE80211_SKB_CB(skb)->control.enqueue_time = now;
}
static u32 codel_skb_len_func(const struct sk_buff *skb)
@@ -3578,55 +3582,79 @@ ieee80211_xmit_fast_finish(struct ieee80211_sub_if_data *sdata,
return TX_CONTINUE;
}
-static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta,
- struct ieee80211_fast_tx *fast_tx,
- struct sk_buff *skb)
+static netdev_features_t
+ieee80211_sdata_netdev_features(struct ieee80211_sub_if_data *sdata)
{
- struct ieee80211_local *local = sdata->local;
- u16 ethertype = (skb->data[12] << 8) | skb->data[13];
- int extra_head = fast_tx->hdr_len - (ETH_HLEN - 2);
- int hw_headroom = sdata->local->hw.extra_tx_headroom;
- struct ethhdr eth;
- struct ieee80211_tx_info *info;
- struct ieee80211_hdr *hdr = (void *)fast_tx->hdr;
- struct ieee80211_tx_data tx;
- ieee80211_tx_result r;
- struct tid_ampdu_tx *tid_tx = NULL;
- u8 tid = IEEE80211_NUM_TIDS;
+ if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN)
+ return sdata->vif.netdev_features;
- /* control port protocol needs a lot of special handling */
- if (cpu_to_be16(ethertype) == sdata->control_port_protocol)
- return false;
+ if (!sdata->bss)
+ return 0;
- /* only RFC 1042 SNAP */
- if (ethertype < ETH_P_802_3_MIN)
- return false;
+ sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, u.ap);
+ return sdata->vif.netdev_features;
+}
- /* don't handle TX status request here either */
- if (skb->sk && skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)
- return false;
+static struct sk_buff *
+ieee80211_tx_skb_fixup(struct sk_buff *skb, netdev_features_t features)
+{
+ if (skb_is_gso(skb)) {
+ struct sk_buff *segs;
- if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
- tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
- tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
- if (tid_tx) {
- if (!test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state))
- return false;
- if (tid_tx->timeout)
- tid_tx->last_tx = jiffies;
- }
+ segs = skb_gso_segment(skb, features);
+ if (!segs)
+ return skb;
+ if (IS_ERR(segs))
+ goto free;
+
+ consume_skb(skb);
+ return segs;
}
- /* after this point (skb is modified) we cannot return false */
+ if (skb_needs_linearize(skb, features) && __skb_linearize(skb))
+ goto free;
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ int ofs = skb_checksum_start_offset(skb);
+
+ if (skb->encapsulation)
+ skb_set_inner_transport_header(skb, ofs);
+ else
+ skb_set_transport_header(skb, ofs);
+
+ if (skb_csum_hwoffload_help(skb, features))
+ goto free;
+ }
+
+ skb_mark_not_on_list(skb);
+ return skb;
+
+free:
+ kfree_skb(skb);
+ return NULL;
+}
+
+static void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ struct ieee80211_fast_tx *fast_tx,
+ struct sk_buff *skb, u8 tid, bool ampdu)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_hdr *hdr = (void *)fast_tx->hdr;
+ struct ieee80211_tx_info *info;
+ struct ieee80211_tx_data tx;
+ ieee80211_tx_result r;
+ int hw_headroom = sdata->local->hw.extra_tx_headroom;
+ int extra_head = fast_tx->hdr_len - (ETH_HLEN - 2);
+ struct ethhdr eth;
skb = skb_share_check(skb, GFP_ATOMIC);
if (unlikely(!skb))
- return true;
+ return;
if ((hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) &&
ieee80211_amsdu_aggregate(sdata, sta, fast_tx, skb))
- return true;
+ return;
/* will not be crypto-handled beyond what we do here, so use false
* as the may-encrypt argument for the resize to not account for
@@ -3635,10 +3663,8 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
if (unlikely(ieee80211_skb_resize(sdata, skb,
max_t(int, extra_head + hw_headroom -
skb_headroom(skb), 0),
- ENCRYPT_NO))) {
- kfree_skb(skb);
- return true;
- }
+ ENCRYPT_NO)))
+ goto free;
memcpy(&eth, skb->data, ETH_HLEN - 2);
hdr = skb_push(skb, extra_head);
@@ -3652,7 +3678,7 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
info->control.vif = &sdata->vif;
info->flags = IEEE80211_TX_CTL_FIRST_FRAGMENT |
IEEE80211_TX_CTL_DONTFRAG |
- (tid_tx ? IEEE80211_TX_CTL_AMPDU : 0);
+ (ampdu ? IEEE80211_TX_CTL_AMPDU : 0);
info->control.flags = IEEE80211_TX_CTRL_FAST_XMIT |
u32_encode_bits(IEEE80211_LINK_UNSPECIFIED,
IEEE80211_TX_CTRL_MLO_LINK);
@@ -3676,16 +3702,14 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
tx.key = fast_tx->key;
if (ieee80211_queue_skb(local, sdata, sta, skb))
- return true;
+ return;
tx.skb = skb;
r = ieee80211_xmit_fast_finish(sdata, sta, fast_tx->pn_offs,
fast_tx->key, &tx);
tx.skb = NULL;
- if (r == TX_DROP) {
- kfree_skb(skb);
- return true;
- }
+ if (r == TX_DROP)
+ goto free;
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
@@ -3693,6 +3717,56 @@ static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
__skb_queue_tail(&tx.skbs, skb);
ieee80211_tx_frags(local, &sdata->vif, sta, &tx.skbs, false);
+ return;
+
+free:
+ kfree_skb(skb);
+}
+
+static bool ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ struct ieee80211_fast_tx *fast_tx,
+ struct sk_buff *skb)
+{
+ u16 ethertype = (skb->data[12] << 8) | skb->data[13];
+ struct ieee80211_hdr *hdr = (void *)fast_tx->hdr;
+ struct tid_ampdu_tx *tid_tx = NULL;
+ struct sk_buff *next;
+ u8 tid = IEEE80211_NUM_TIDS;
+
+ /* control port protocol needs a lot of special handling */
+ if (cpu_to_be16(ethertype) == sdata->control_port_protocol)
+ return false;
+
+ /* only RFC 1042 SNAP */
+ if (ethertype < ETH_P_802_3_MIN)
+ return false;
+
+ /* don't handle TX status request here either */
+ if (skb->sk && skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)
+ return false;
+
+ if (hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
+ tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+ tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[tid]);
+ if (tid_tx) {
+ if (!test_bit(HT_AGG_STATE_OPERATIONAL, &tid_tx->state))
+ return false;
+ if (tid_tx->timeout)
+ tid_tx->last_tx = jiffies;
+ }
+ }
+
+ /* after this point (skb is modified) we cannot return false */
+ skb = ieee80211_tx_skb_fixup(skb, ieee80211_sdata_netdev_features(sdata));
+ if (!skb)
+ return true;
+
+ skb_list_walk_safe(skb, skb, next) {
+ skb_mark_not_on_list(skb);
+ __ieee80211_xmit_fast(sdata, sta, fast_tx, skb, tid, tid_tx);
+ }
+
return true;
}
@@ -4192,31 +4266,14 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb,
goto out;
}
- if (skb_is_gso(skb)) {
- struct sk_buff *segs;
-
- segs = skb_gso_segment(skb, 0);
- if (IS_ERR(segs)) {
- goto out_free;
- } else if (segs) {
- consume_skb(skb);
- skb = segs;
- }
- } else {
- /* we cannot process non-linear frames on this path */
- if (skb_linearize(skb))
- goto out_free;
-
- /* the frame could be fragmented, software-encrypted, and other
- * things so we cannot really handle checksum offload with it -
- * fix it up in software before we handle anything else.
- */
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- skb_set_transport_header(skb,
- skb_checksum_start_offset(skb));
- if (skb_checksum_help(skb))
- goto out_free;
- }
+ /* the frame could be fragmented, software-encrypted, and other
+ * things so we cannot really handle checksum or GSO offload.
+ * fix it up in software before we handle anything else.
+ */
+ skb = ieee80211_tx_skb_fixup(skb, 0);
+ if (!skb) {
+ len = 0;
+ goto out;
}
skb_list_walk_safe(skb, skb, next) {
@@ -4434,9 +4491,11 @@ normal:
return NETDEV_TX_OK;
}
-static bool ieee80211_tx_8023(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb, struct sta_info *sta,
- bool txpending)
+
+
+static bool __ieee80211_tx_8023(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, struct sta_info *sta,
+ bool txpending)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_tx_control control = {};
@@ -4445,14 +4504,6 @@ static bool ieee80211_tx_8023(struct ieee80211_sub_if_data *sdata,
unsigned long flags;
int q = info->hw_queue;
- if (sta)
- sk_pacing_shift_update(skb->sk, local->hw.tx_sk_pacing_shift);
-
- ieee80211_tpt_led_trig_tx(local, skb->len);
-
- if (ieee80211_queue_skb(local, sdata, sta, skb))
- return true;
-
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
if (local->queue_stop_reasons[q] ||
@@ -4479,6 +4530,26 @@ static bool ieee80211_tx_8023(struct ieee80211_sub_if_data *sdata,
return true;
}
+static bool ieee80211_tx_8023(struct ieee80211_sub_if_data *sdata,
+ struct sk_buff *skb, struct sta_info *sta,
+ bool txpending)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *next;
+ bool ret = true;
+
+ if (ieee80211_queue_skb(local, sdata, sta, skb))
+ return true;
+
+ skb_list_walk_safe(skb, skb, next) {
+ skb_mark_not_on_list(skb);
+ if (!__ieee80211_tx_8023(sdata, skb, sta, txpending))
+ ret = false;
+ }
+
+ return ret;
+}
+
static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
struct net_device *dev, struct sta_info *sta,
struct ieee80211_key *key, struct sk_buff *skb)
@@ -4486,9 +4557,13 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
struct ieee80211_tx_info *info;
struct ieee80211_local *local = sdata->local;
struct tid_ampdu_tx *tid_tx;
+ struct sk_buff *seg, *next;
+ unsigned int skbs = 0, len = 0;
+ u16 queue;
u8 tid;
- skb_set_queue_mapping(skb, ieee80211_select_queue(sdata, sta, skb));
+ queue = ieee80211_select_queue(sdata, sta, skb);
+ skb_set_queue_mapping(skb, queue);
if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning)) &&
test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state))
@@ -4498,9 +4573,6 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
if (unlikely(!skb))
return;
- info = IEEE80211_SKB_CB(skb);
- memset(info, 0, sizeof(*info));
-
ieee80211_aggr_check(sdata, sta, skb);
tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
@@ -4514,22 +4586,20 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
return;
}
- info->flags |= IEEE80211_TX_CTL_AMPDU;
if (tid_tx->timeout)
tid_tx->last_tx = jiffies;
}
- if (unlikely(skb->sk &&
- skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS))
- info->ack_frame_id = ieee80211_store_ack_skb(local, skb,
- &info->flags, NULL);
-
- info->hw_queue = sdata->vif.hw_queue[skb_get_queue_mapping(skb)];
+ skb = ieee80211_tx_skb_fixup(skb, ieee80211_sdata_netdev_features(sdata));
+ if (!skb)
+ return;
- dev_sw_netstats_tx_add(dev, 1, skb->len);
+ info = IEEE80211_SKB_CB(skb);
+ memset(info, 0, sizeof(*info));
+ if (tid_tx)
+ info->flags |= IEEE80211_TX_CTL_AMPDU;
- sta->deflink.tx_stats.bytes[skb_get_queue_mapping(skb)] += skb->len;
- sta->deflink.tx_stats.packets[skb_get_queue_mapping(skb)]++;
+ info->hw_queue = sdata->vif.hw_queue[queue];
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
@@ -4541,6 +4611,24 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
if (key)
info->control.hw_key = &key->conf;
+ skb_list_walk_safe(skb, seg, next) {
+ skbs++;
+ len += seg->len;
+ if (seg != skb)
+ memcpy(IEEE80211_SKB_CB(seg), info, sizeof(*info));
+ }
+
+ if (unlikely(skb->sk &&
+ skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS))
+ info->ack_frame_id = ieee80211_store_ack_skb(local, skb,
+ &info->flags, NULL);
+
+ dev_sw_netstats_tx_add(dev, skbs, len);
+ sta->deflink.tx_stats.packets[queue] += skbs;
+ sta->deflink.tx_stats.bytes[queue] += len;
+
+ ieee80211_tpt_led_trig_tx(local, len);
+
ieee80211_tx_8023(sdata, skb, sta, false);
return;
@@ -4582,6 +4670,7 @@ netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
key->conf.cipher == WLAN_CIPHER_SUITE_TKIP))
goto skip_offload;
+ sk_pacing_shift_update(skb->sk, sdata->local->hw.tx_sk_pacing_shift);
ieee80211_8023_xmit(sdata, dev, sta, key, skb);
goto out;