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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 17:22:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-06 17:22:09 -0800
commit9753dfe19a85e7e45a34a56f4cb2048bb4f50e27 (patch)
treec017a1b4a70b8447c71b01d8b320e071546b5c9d /net/mac80211/status.c
parentedf7c8148ec40c0fd27c0ef3f688defcc65e3913 (diff)
parent9f42f126154786e6e76df513004800c8c633f020 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits) net: pack skb_shared_info more efficiently net_sched: red: split red_parms into parms and vars net_sched: sfq: extend limits cnic: Improve error recovery on bnx2x devices cnic: Re-init dev->stats_addr after chip reset net_sched: Bug in netem reordering bna: fix sparse warnings/errors bna: make ethtool_ops and strings const xgmac: cleanups net: make ethtool_ops const vmxnet3" make ethtool ops const xen-netback: make ops structs const virtio_net: Pass gfp flags when allocating rx buffers. ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call igb: reset PHY after recovering from PHY power down igb: add basic runtime PM support igb: Add support for byte queue limits. e1000: cleanup CE4100 MDIO registers access e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove ...
Diffstat (limited to 'net/mac80211/status.c')
-rw-r--r--net/mac80211/status.c102
1 files changed, 75 insertions, 27 deletions
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 16518f38611..30c265c98f7 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -340,7 +340,6 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- u16 frag, type;
__le16 fc;
struct ieee80211_supported_band *sband;
struct ieee80211_sub_if_data *sdata;
@@ -476,12 +475,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
* Fragments are passed to low-level drivers as separate skbs, so these
* are actually fragments, not frames. Update frame counters only for
* the first fragment of the frame. */
-
- frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
- type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE;
-
if (info->flags & IEEE80211_TX_STAT_ACK) {
- if (frag == 0) {
+ if (ieee80211_is_first_frag(hdr->seq_ctrl)) {
local->dot11TransmittedFrameCount++;
if (is_multicast_ether_addr(hdr->addr1))
local->dot11MulticastTransmittedFrameCount++;
@@ -496,11 +491,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
* with a multicast address in the address 1 field of type Data
* or Management. */
if (!is_multicast_ether_addr(hdr->addr1) ||
- type == IEEE80211_FTYPE_DATA ||
- type == IEEE80211_FTYPE_MGMT)
+ ieee80211_is_data(fc) ||
+ ieee80211_is_mgmt(fc))
local->dot11TransmittedFragmentCount++;
} else {
- if (frag == 0)
+ if (ieee80211_is_first_frag(hdr->seq_ctrl))
local->dot11FailedCount++;
}
@@ -517,27 +512,54 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
}
if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
- struct ieee80211_work *wk;
u64 cookie = (unsigned long)skb;
- rcu_read_lock();
- list_for_each_entry_rcu(wk, &local->work_list, list) {
- if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
- continue;
- if (wk->offchan_tx.frame != skb)
- continue;
- wk->offchan_tx.status = true;
- break;
- }
- rcu_read_unlock();
- if (local->hw_roc_skb_for_status == skb) {
- cookie = local->hw_roc_cookie ^ 2;
- local->hw_roc_skb_for_status = NULL;
+ if (ieee80211_is_nullfunc(hdr->frame_control) ||
+ ieee80211_is_qos_nullfunc(hdr->frame_control)) {
+ bool acked = info->flags & IEEE80211_TX_STAT_ACK;
+ cfg80211_probe_status(skb->dev, hdr->addr1,
+ cookie, acked, GFP_ATOMIC);
+ } else {
+ struct ieee80211_work *wk;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(wk, &local->work_list, list) {
+ if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
+ continue;
+ if (wk->offchan_tx.frame != skb)
+ continue;
+ wk->offchan_tx.status = true;
+ break;
+ }
+ rcu_read_unlock();
+ if (local->hw_roc_skb_for_status == skb) {
+ cookie = local->hw_roc_cookie ^ 2;
+ local->hw_roc_skb_for_status = NULL;
+ }
+
+ cfg80211_mgmt_tx_status(
+ skb->dev, cookie, skb->data, skb->len,
+ !!(info->flags & IEEE80211_TX_STAT_ACK),
+ GFP_ATOMIC);
}
+ }
- cfg80211_mgmt_tx_status(
- skb->dev, cookie, skb->data, skb->len,
- !!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC);
+ if (unlikely(info->ack_frame_id)) {
+ struct sk_buff *ack_skb;
+ unsigned long flags;
+
+ spin_lock_irqsave(&local->ack_status_lock, flags);
+ ack_skb = idr_find(&local->ack_status_frames,
+ info->ack_frame_id);
+ if (ack_skb)
+ idr_remove(&local->ack_status_frames,
+ info->ack_frame_id);
+ spin_unlock_irqrestore(&local->ack_status_lock, flags);
+
+ /* consumes ack_skb */
+ if (ack_skb)
+ skb_complete_wifi_ack(ack_skb,
+ info->flags & IEEE80211_TX_STAT_ACK);
}
/* this was a transmitted frame, but now we want to reuse it */
@@ -545,7 +567,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
/* Need to make a copy before skb->cb gets cleared */
send_to_cooked = !!(info->flags & IEEE80211_TX_CTL_INJECTED) ||
- (type != IEEE80211_FTYPE_DATA);
+ !(ieee80211_is_data(fc));
/*
* This is a bit racy but we can avoid a lot of work
@@ -610,3 +632,29 @@ void ieee80211_report_low_ack(struct ieee80211_sta *pubsta, u32 num_packets)
num_packets, GFP_ATOMIC);
}
EXPORT_SYMBOL(ieee80211_report_low_ack);
+
+void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+ if (unlikely(info->ack_frame_id)) {
+ struct sk_buff *ack_skb;
+ unsigned long flags;
+
+ spin_lock_irqsave(&local->ack_status_lock, flags);
+ ack_skb = idr_find(&local->ack_status_frames,
+ info->ack_frame_id);
+ if (ack_skb)
+ idr_remove(&local->ack_status_frames,
+ info->ack_frame_id);
+ spin_unlock_irqrestore(&local->ack_status_lock, flags);
+
+ /* consumes ack_skb */
+ if (ack_skb)
+ dev_kfree_skb_any(ack_skb);
+ }
+
+ dev_kfree_skb_any(skb);
+}
+EXPORT_SYMBOL(ieee80211_free_txskb);