net_sched: Add size table for qdiscs

Add size table functions for qdiscs and calculate packet size in
qdisc_enqueue().

Based on patch by Patrick McHardy
 http://marc.info/?l=linux-netdev&m=115201979221729&w=2

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 20 insertions, 0 deletions

diff --git a/include/linux/pkt_sched.h b/include/linux/pkt_sched.h
index 87f4e0fa8f27..e5de421ac7b4 100644
--- a/include/linux/pkt_sched.h
+++ b/include/linux/pkt_sched.h
@@ -85,6 +85,26 @@ struct tc_ratespec
 
 #define TC_RTAB_SIZE    1024
 
+struct tc_sizespec {
+        unsigned char   cell_log;
+        unsigned char   size_log;
+        short           cell_align;
+        int             overhead;
+        unsigned int    linklayer;
+        unsigned int    mpu;
+        unsigned int    mtu;
+        unsigned int    tsize;
+};
+
+enum {
+        TCA_STAB_UNSPEC,
+        TCA_STAB_BASE,
+        TCA_STAB_DATA,
+        __TCA_STAB_MAX
+};
+
+#define TCA_STAB_MAX (__TCA_STAB_MAX - 1)
+
 /* FIFO section */
 
 struct tc_fifo_qopt