[NET_SCHED]: Add HFSC packet scheduler.

2 files changed, 34 insertions, 0 deletions

diff --git a/include/linux/pkt_sched.h b/include/linux/pkt_sched.h
index d97edad0effc..8ae0e141cb05 100644
--- a/include/linux/pkt_sched.h
+++ b/include/linux/pkt_sched.h
@@ -290,6 +290,37 @@ struct tc_htb_xstats
 	__u32 ctokens;
 };
 
+/* HFSC section */
+
+struct tc_hfsc_qopt
+{
+	__u16	defcls;		/* default class */
+};
+
+struct tc_service_curve
+{
+	__u32	m1;		/* slope of the first segment in bps */
+	__u32	d;		/* x-projection of the first segment in us */
+	__u32	m2;		/* slope of the second segment in bps */
+};
+
+struct tc_hfsc_stats
+{
+	__u64	work;		/* total work done */
+	__u64	rtwork;		/* work done by real-time criteria */
+	__u32	period;		/* current period */
+	__u32	level;		/* class level in hierarchy */
+};
+
+enum
+{
+	TCA_HFSC_UNSPEC,
+	TCA_HFSC_RSC,
+	TCA_HFSC_FSC,
+	TCA_HFSC_USC,
+	TCA_HFSC_MAX = TCA_HFSC_USC
+};
+
 /* CBQ section */
 
 #define TC_CBQ_MAXPRIO		8
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 270523896c4d..35f600ba43ba 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -203,6 +203,7 @@ typedef long		psched_tdiff_t;
 
 #define PSCHED_GET_TIME(stamp) do_gettimeofday(&(stamp))
 #define PSCHED_US2JIFFIE(usecs) (((usecs)+(1000000/HZ-1))/(1000000/HZ))
+#define PSCHED_JIFFIE2US(delay) ((delay)*(1000000/HZ))
 
 #define PSCHED_EXPORTLIST EXPORT_SYMBOL(psched_tod_diff);
 
@@ -251,6 +252,7 @@ extern PSCHED_WATCHER psched_time_mark;
 #endif
 
 #define PSCHED_US2JIFFIE(delay) (((delay)+(1<<PSCHED_JSCALE)-1)>>PSCHED_JSCALE)
+#define PSCHED_JIFFIE2US(delay) ((delay)<<PSCHED_JSCALE)
 
 #elif PSCHED_CLOCK_SOURCE == PSCHED_CPU
 
@@ -261,6 +263,7 @@ extern int psched_clock_scale;
                             EXPORT_SYMBOL(psched_clock_scale);
 
 #define PSCHED_US2JIFFIE(delay) (((delay)+psched_clock_per_hz-1)/psched_clock_per_hz)
+#define PSCHED_JIFFIE2US(delay) ((delay)*psched_clock_per_hz)
 
 #ifdef CONFIG_X86_TSC