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authorDavid S. Miller <davem@davemloft.net>2013-08-16 15:37:26 -0700
committerDavid S. Miller <davem@davemloft.net>2013-08-16 15:37:26 -0700
commit2ff1cf12c9fe70e75e600404e6a4274b19d293ed (patch)
treebeafddac0a8098e3f07d2ec60e44a2a7d006e605 /include/net/sch_generic.h
parent16b304f3404f8e0243d5ee2b70b68767b7b59b2b (diff)
parent0f7dd1aa8f959216f1faa71513b9d3c1a9065e5a (diff)
downloadlinux-2ff1cf12c9fe70e75e600404e6a4274b19d293ed.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'include/net/sch_generic.h')
-rw-r--r--include/net/sch_generic.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index ffc9d883b163..76368c9d4503 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -685,13 +685,19 @@ struct psched_ratecfg {
 	u64	rate_bytes_ps; /* bytes per second */
 	u32	mult;
 	u16	overhead;
+	u8	linklayer;
 	u8	shift;
 };
 
 static inline u64 psched_l2t_ns(const struct psched_ratecfg *r,
 				unsigned int len)
 {
-	return ((u64)(len + r->overhead) * r->mult) >> r->shift;
+	len += r->overhead;
+
+	if (unlikely(r->linklayer == TC_LINKLAYER_ATM))
+		return ((u64)(DIV_ROUND_UP(len,48)*53) * r->mult) >> r->shift;
+
+	return ((u64)len * r->mult) >> r->shift;
 }
 
 void psched_ratecfg_precompute(struct psched_ratecfg *r,
@@ -703,6 +709,7 @@ static inline void psched_ratecfg_getrate(struct tc_ratespec *res,
 	memset(res, 0, sizeof(*res));
 	res->rate = r->rate_bytes_ps;
 	res->overhead = r->overhead;
+	res->linklayer = (r->linklayer & TC_LINKLAYER_MASK);
 }
 
 #endif