[source] mac80211: tweak TSQ settings

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/111b49902465116a8353d29afe02eff0f56ea0a3

commit 111b49902465116a8353d29afe02eff0f56ea0a3
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Thu Nov 16 09:57:13 2017 +0100

    mac80211: tweak TSQ settings
    
    Latencies can be much higher on wifi devices, especially with
    aggregation. Tune the network stack setting introduced in the previous
    commit to account for that.
    This commit reintroduces the previously reverted one with a fix for the
    crash issues
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 .../kernel/mac80211/patches/140-tweak-TSQ-setting.patch   | 15 +++++++++++++++
 .../307-mac80211-add-hdrlen-to-ieee80211_tx_data.patch    |  2 +-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/package/kernel/mac80211/patches/140-tweak-TSQ-setting.patch b/package/kernel/mac80211/patches/140-tweak-TSQ-setting.patch
new file mode 100644
index 0000000..6e9a07a
--- /dev/null
+++ b/package/kernel/mac80211/patches/140-tweak-TSQ-setting.patch
@@ -0,0 +1,15 @@
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -3750,6 +3750,12 @@ out:
+ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
+ 				       struct net_device *dev)
+ {
++#if defined(sk_pacing_shift) || LINUX_VERSION_IS_GEQ(4,15,0)
++	if (skb->sk && sk_fullsock(skb->sk) &&
++	    skb->sk->sk_pacing_shift != 6)
++		skb->sk->sk_pacing_shift = 6;
++#endif
++
+ 	if (unlikely(ieee80211_multicast_to_unicast(skb, dev))) {
+ 		struct sk_buff_head queue;
+ 
diff --git a/package/kernel/mac80211/patches/307-mac80211-add-hdrlen-to-ieee80211_tx_data.patch b/package/kernel/mac80211/patches/307-mac80211-add-hdrlen-to-ieee80211_tx_data.patch
index 934e2e1..83c6134 100644
--- a/package/kernel/mac80211/patches/307-mac80211-add-hdrlen-to-ieee80211_tx_data.patch
+++ b/package/kernel/mac80211/patches/307-mac80211-add-hdrlen-to-ieee80211_tx_data.patch
@@ -56,7 +56,7 @@ Signed-off-by: Janusz Dziedzic <janusz.dziedzic at tieto.com>
  
  	if (txq->sta)
  		tx.sta = container_of(txq->sta, struct sta_info, sta);
-@@ -3790,6 +3791,7 @@ ieee80211_build_data_template(struct iee
+@@ -3796,6 +3797,7 @@ ieee80211_build_data_template(struct iee
  	hdr = (void *)skb->data;
  	tx.sta = sta_info_get(sdata, hdr->addr1);
  	tx.skb = skb;