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net/sched: cls_bpf: Reflect HW offload status 

BPF classifier support for the "in hw" offloading flags.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Amir Vadai <amir@vadai.me>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Or Gerlitz 2017-02-16 10:31:16 +02:00 committed by David S. Miller
parent 24d3dc6d27
commit 5cecb6cc00
1 changed files with 11 additions and 2 deletions
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13
net/sched/cls_bpf.c
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@ -148,6 +148,7 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
struct net_device *dev = tp->q->dev_queue->dev;
struct tc_cls_bpf_offload bpf_offload = {};
struct tc_to_netdev offload;
int err;
offload.type = TC_SETUP_CLSBPF;
offload.cls_bpf = &bpf_offload;
@ -159,8 +160,13 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
bpf_offload.exts_integrated = prog->exts_integrated;
bpf_offload.gen_flags = prog->gen_flags;
return dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle,
tp->protocol, &offload);
err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle,
tp->protocol, &offload);
if (!err && (cmd == TC_CLSBPF_ADD || cmd == TC_CLSBPF_REPLACE))
prog->gen_flags |= TCA_CLS_FLAGS_IN_HW;
return err;
}
static int cls_bpf_offload(struct tcf_proto *tp, struct cls_bpf_prog *prog,
@ -511,6 +517,9 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
return ret;
}
if (!tc_in_hw(prog->gen_flags))
prog->gen_flags |= TCA_CLS_FLAGS_NOT_IN_HW;
if (oldprog) {
list_replace_rcu(&oldprog->link, &prog->link);
tcf_unbind_filter(tp, &oldprog->res);