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Date: Sat, 9 Mar 2013 19:24:56 -0800
From: Vimalkumar <j.vimal@...il.com>
To: netdev@...r.kernel.org, eric.dumazet@...il.com,
shemminger@...tta.com, davem@...emloft.net, jiri@...nulli.us,
jhs@...atatu.com
Cc: Vimalkumar <j.vimal@...il.com>
Subject: [PATCH] sch: Rate (in bits/sec) should be u64 so it doesn't overflow at 40Gbit.
Signed-off-by: Vimalkumar <j.vimal@...il.com>
---
include/net/sch_generic.h | 4 ++--
include/uapi/linux/gen_stats.h | 2 +-
include/uapi/linux/pkt_sched.h | 10 +++++-----
net/sched/sch_generic.c | 2 +-
net/sched/sch_hfsc.c | 8 ++++----
5 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index f10818f..c9098c8 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -690,9 +690,9 @@ static inline u64 psched_l2t_ns(const struct psched_ratecfg *r,
return ((u64)len * r->mult) >> r->shift;
}
-extern void psched_ratecfg_precompute(struct psched_ratecfg *r, u32 rate);
+extern void psched_ratecfg_precompute(struct psched_ratecfg *r, u64 rate);
-static inline u32 psched_ratecfg_getrate(const struct psched_ratecfg *r)
+static inline u64 psched_ratecfg_getrate(const struct psched_ratecfg *r)
{
return r->rate_bps >> 3;
}
diff --git a/include/uapi/linux/gen_stats.h b/include/uapi/linux/gen_stats.h
index 552c8a0..5ca6015 100644
--- a/include/uapi/linux/gen_stats.h
+++ b/include/uapi/linux/gen_stats.h
@@ -33,7 +33,7 @@ struct gnet_stats_basic_packed {
* @pps: current packet rate
*/
struct gnet_stats_rate_est {
- __u32 bps;
+ __u64 bps;
__u32 pps;
};
diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index 32aef0a..d6bc658 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -35,7 +35,7 @@ struct tc_stats {
__u32 drops; /* Packets dropped because of lack of resources */
__u32 overlimits; /* Number of throttle events when this
* flow goes out of allocated bandwidth */
- __u32 bps; /* Current flow byte rate */
+ __u64 bps; /* Current flow byte rate */
__u32 pps; /* Current flow packet rate */
__u32 qlen;
__u32 backlog;
@@ -79,7 +79,7 @@ struct tc_ratespec {
unsigned short overhead;
short cell_align;
unsigned short mpu;
- __u32 rate;
+ __u64 rate;
};
#define TC_RTAB_SIZE 1024
@@ -368,9 +368,9 @@ struct tc_hfsc_qopt {
};
struct tc_service_curve {
- __u32 m1; /* slope of the first segment in bps */
+ __u64 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 */
+ __u64 m2; /* slope of the second segment in bps */
};
struct tc_hfsc_stats {
@@ -541,7 +541,7 @@ struct tc_netem_corrupt {
};
struct tc_netem_rate {
- __u32 rate; /* byte/s */
+ __u64 rate; /* byte/s */
__s32 packet_overhead;
__u32 cell_size;
__s32 cell_overhead;
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index ffad481..37a178c 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -898,7 +898,7 @@ void dev_shutdown(struct net_device *dev)
WARN_ON(timer_pending(&dev->watchdog_timer));
}
-void psched_ratecfg_precompute(struct psched_ratecfg *r, u32 rate)
+void psched_ratecfg_precompute(struct psched_ratecfg *r, u64 rate)
{
u64 factor;
u64 mult;
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 9facea0..f06b447 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -419,7 +419,7 @@ seg_y2x(u64 y, u64 ism)
/* Convert m (bps) into sm (bytes/psched us) */
static u64
-m2sm(u32 m)
+m2sm(u64 m)
{
u64 sm;
@@ -431,7 +431,7 @@ m2sm(u32 m)
/* convert m (bps) into ism (psched us/byte) */
static u64
-m2ism(u32 m)
+m2ism(u64 m)
{
u64 ism;
@@ -458,13 +458,13 @@ d2dx(u32 d)
}
/* convert sm (bytes/psched us) into m (bps) */
-static u32
+static u64
sm2m(u64 sm)
{
u64 m;
m = (sm * PSCHED_TICKS_PER_SEC) >> SM_SHIFT;
- return (u32)m;
+ return m;
}
/* convert dx (psched us) into d (us) */
--
1.7.5.3
--
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