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authorDaniel Borkmann <daniel@iogearbox.net>2016-06-06 22:50:39 +0200
committerDavid S. Miller <davem@davemloft.net>2016-06-07 16:59:53 -0700
commit92c075dbdeed02bdf293cb0f513bad70aa714b8d (patch)
treef15e2f03239246b5927ac2975feb7ee1e55a1ff7 /net/sched/sch_ingress.c
parenta03e6fe569713fb3ff0714f8fd7c8785c0ca9e22 (diff)
downloadlinux-92c075dbdeed02bdf293cb0f513bad70aa714b8d.tar.bz2
net: sched: fix tc_should_offload for specific clsact classes
When offloading classifiers such as u32 or flower to hardware, and the qdisc is clsact (TC_H_CLSACT), then we need to differentiate its classes, since not all of them handle ingress, therefore we must leave those in software path. Add a .tcf_cl_offload() callback, so we can generically handle them, tested on ixgbe. Fixes: 10cbc6843446 ("net/sched: cls_flower: Hardware offloaded filters statistics support") Fixes: 5b33f48842fa ("net/flower: Introduce hardware offload support") Fixes: a1b7c5fd7fe9 ("net: sched: add cls_u32 offload hooks for netdevs") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_ingress.c')
-rw-r--r--net/sched/sch_ingress.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c
index 10adbc617905..8fe6999b642a 100644
--- a/net/sched/sch_ingress.c
+++ b/net/sched/sch_ingress.c
@@ -27,6 +27,11 @@ static unsigned long ingress_get(struct Qdisc *sch, u32 classid)
return TC_H_MIN(classid) + 1;
}
+static bool ingress_cl_offload(u32 classid)
+{
+ return true;
+}
+
static unsigned long ingress_bind_filter(struct Qdisc *sch,
unsigned long parent, u32 classid)
{
@@ -86,6 +91,7 @@ static const struct Qdisc_class_ops ingress_class_ops = {
.put = ingress_put,
.walk = ingress_walk,
.tcf_chain = ingress_find_tcf,
+ .tcf_cl_offload = ingress_cl_offload,
.bind_tcf = ingress_bind_filter,
.unbind_tcf = ingress_put,
};
@@ -110,6 +116,11 @@ static unsigned long clsact_get(struct Qdisc *sch, u32 classid)
}
}
+static bool clsact_cl_offload(u32 classid)
+{
+ return TC_H_MIN(classid) == TC_H_MIN(TC_H_MIN_INGRESS);
+}
+
static unsigned long clsact_bind_filter(struct Qdisc *sch,
unsigned long parent, u32 classid)
{
@@ -158,6 +169,7 @@ static const struct Qdisc_class_ops clsact_class_ops = {
.put = ingress_put,
.walk = ingress_walk,
.tcf_chain = clsact_find_tcf,
+ .tcf_cl_offload = clsact_cl_offload,
.bind_tcf = clsact_bind_filter,
.unbind_tcf = ingress_put,
};