From: Dave Taht <dave.t...@bufferbloat.net>
This moves all but EF marked traffic out of the VO queue,
allowing for aggregation of other forms of traffic.
It more aggressively uses the VI queue for interactive-ish
traffic.
---
...901-Add-full-diffserv-support-to-wireless.patch | 126 ++++++++++++++++++++
1 file changed, 126 insertions(+)
create mode 100644
package/mac80211/patches/901-Add-full-diffserv-support-to-wireless.patch
diff --git
a/package/mac80211/patches/901-Add-full-diffserv-support-to-wireless.patch
b/package/mac80211/patches/901-Add-full-diffserv-support-to-wireless.patch
new file mode 100644
index 0000000..7c19e05
--- /dev/null
+++ b/package/mac80211/patches/901-Add-full-diffserv-support-to-wireless.patch
@@ -0,0 +1,126 @@
+From 12b7c8b3cb5750f58e560076b93d3a0af1d70e09 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Dave=20T=C3=A4ht?= <dave.t...@bufferbloat.net>
+Date: Sun, 8 Jul 2012 14:38:32 -0400
+Subject: [PATCH] Add full diffserv support to wireless
+
+The previous dscp scheme in linux wireless only respected the topmost
+3 diffserv priority bits (e.g. CS0 through CS7). This patch respects
+all the diffserv bits and all the old-style tos bits that make sense.
+
+It moves all but EF marked traffic out of the VO queue, where CS6 and
+CS7 have been going.
+
+The imm bit (set by ssh) now moves to VI
+Background goes to BK
+Most other (obsolete) options move into VI, notably CS6 and CS7 traffic.
+
+Sort of in keeping with the 802.1q spirit, but not along the actual
+performance of 802.1q, the queues are marked with the range 0-7.
+---
+ net/wireless/util.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 71 insertions(+), 2 deletions(-)
+
+diff --git a/net/wireless/util.c b/net/wireless/util.c
+index 316cfd0..304a6c7 100644
+--- a/net/wireless/util.c
++++ b/net/wireless/util.c
+@@ -12,6 +12,8 @@
+ #include <net/dsfield.h>
+ #include "core.h"
+
++/* VI, VO, BE, BK */
++
+ struct ieee80211_rate *
+ ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
+ u32 basic_rates, int bitrate)
+@@ -635,10 +637,77 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb,
struct sk_buff_head *list,
+ }
+ EXPORT_SYMBOL(ieee80211_amsdu_to_8023s);
+
++static u8 dscp_table[] = {
++ 0, /* BE = 0x0 */
++ 0, /* Max-Reliability = 0x1 */
++ 3, /* Max-Throughput = 0x2 */
++ 0, /* 0x3 Undefined */
++ 5, /* Min-Delay = 0x4 */
++ 0, /* 0x5 Undefined */
++ 0, /* 0x6 Undefined */
++ 0, /* 0x7 Undefined */
++ 1, /* CS1 = 0x8 */
++ 0, /* 0x9 Undefined */
++ 3, /* AF11 = 0xa */
++ 0, /* 0xb Undefined */
++ 3, /* AF12 = 0xc */
++ 0, /* 0xd Undefined */
++ 3, /* AF13 = 0xe */
++ 0, /* 0xf Undefined */
++ 2, /* CS2 = 0x10 */
++ 0, /* 0x11 Undefined */
++ 3, /* AF21 = 0x12 */
++ 0, /* 0x13 Undefined */
++ 3, /* AF22 = 0x14 */
++ 0, /* 0x15 Undefined */
++ 3, /* AF23 = 0x16 */
++ 0, /* 0x17 Undefined */
++ 4, /* CS3 = 0x18 */
++ 0, /* 0x19 Undefined */
++ 3, /* AF31 = 0x1a */
++ 0, /* 0x1b Undefined */
++ 3, /* AF32 = 0x1c */
++ 0, /* 0x1d Undefined */
++ 3, /* AF33 = 0x1e */
++ 0, /* 0x1f Undefined */
++ 5, /* CS4 = 0x20 */
++ 0, /* 0x21 Undefined */
++ 5, /* AF41 = 0x22 */
++ 0, /* 0x23 Undefined */
++ 5, /* AF42 = 0x24 */
++ 0, /* 0x25 Undefined */
++ 4, /* AF43 = 0x26 */
++ 0, /* 0x27 Undefined */
++ 5, /* CS5 = 0x28 */
++ 0, /* 0x29 Undefined */
++ 0, /* 0x2a Undefined */
++ 0, /* 0x2b Undefined */
++ 4, /* VA = 0x2c */
++ 0, /* 0x2d Undefined */
++ 6, /* EF = 0x2e */
++ 0, /* 0x2f Undefined */
++ 5, /* CS6 = 0x30 */
++ 0, /* 0x31 Undefined */
++ 0, /* 0x32 Undefined */
++ 0, /* 0x33 Undefined */
++ 0, /* 0x34 Undefined */
++ 0, /* 0x35 Undefined */
++ 0, /* 0x36 Undefined */
++ 0, /* 0x37 Undefined */
++ 5, /* CS7 = 0x38 */
++ 0, /* 0x39 Undefined */
++ 0, /* 0x3a Undefined */
++ 0, /* 0x3b Undefined */
++ 0, /* 0x3c Undefined */
++ 0, /* 0x3d Undefined */
++ 0, /* 0x3e Undefined */
++ 0, /* 0x3f Undefined */
++};
++
+ /* Given a data frame determine the 802.1p/1d tag to use. */
+ unsigned int cfg80211_classify8021d(struct sk_buff *skb)
+ {
+- unsigned int dscp;
++ unsigned char dscp;
+
+ /* skb->priority values from 256->263 are magic values to
+ * directly indicate a specific 802.1d priority. This is used
+@@ -659,7 +728,7 @@ unsigned int cfg80211_classify8021d(struct sk_buff *skb)
+ return 0;
+ }
+
+- return dscp >> 5;
++ return (dscp_table[dscp>>2]);
+ }
+ EXPORT_SYMBOL(cfg80211_classify8021d);
+
+--
+1.7.9.5
+
--
1.7.9.5
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