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net/sched: cls_flower: Set the filter Hardware device for all use-cases 

Check if the returned device from tcf_exts_get_dev function supports tc
offload and in case the rule can't be offloaded, set the filter hw_dev
parameter to the original device given by the user.

The filter hw_device parameter should always be set by fl_hw_replace_filter
function, since this pointer is used by dump stats and destroy
filter for each flower rule (offloaded or not).

Fixes: 7091d8c705 ('net/sched: cls_flower: Add offload support using egress Hardware device')
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Reported-by: Simon Horman <horms@verge.net.au>
Tested-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hadar Hen Zion 2016-12-04 15:25:19 +02:00 committed by David S. Miller
parent 96d5822c1d
commit a6e1693129
1 changed files with 4 additions and 1 deletions
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5
net/sched/cls_flower.c
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@ -236,8 +236,11 @@ static int fl_hw_replace_filter(struct tcf_proto *tp,
int err;
if (!tc_can_offload(dev, tp)) {
if (tcf_exts_get_dev(dev, &f->exts, &f->hw_dev))
if (tcf_exts_get_dev(dev, &f->exts, &f->hw_dev) ||
(f->hw_dev && !tc_can_offload(f->hw_dev, tp))) {
f->hw_dev = dev;
return tc_skip_sw(f->flags) ? -EINVAL : 0;
}
dev = f->hw_dev;
tc->egress_dev = true;
} else {