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| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-11-07 17:33:34 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-11-08 16:19:47 -0800 |
| commit | b592843c6723a850be70bf9618578082f3b73851 (patch) | |
| tree | 3acb38ec73ec6f293b022814ef62e2434a06ff60 /net/sched/sch_api.c | |
| parent | Merge branch 'net-phy-improve-and-simplify-phylib-state-machine' (diff) | |
| download | linux-dev-b592843c6723a850be70bf9618578082f3b73851.tar.xz linux-dev-b592843c6723a850be70bf9618578082f3b73851.zip | |
net: sched: add an offload dump helper
Qdisc dump operation of offload-capable qdiscs performs a few
extra steps which are identical among all the qdiscs. Add
a helper to share this code.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_api.c')
| -rw-r--r-- | net/sched/sch_api.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index ca3b0f46de53..e534825d3d3a 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -810,6 +810,27 @@ void qdisc_tree_reduce_backlog(struct Qdisc *sch, unsigned int n, } EXPORT_SYMBOL(qdisc_tree_reduce_backlog); +int qdisc_offload_dump_helper(struct Qdisc *sch, enum tc_setup_type type, + void *type_data) +{ + struct net_device *dev = qdisc_dev(sch); + int err; + + sch->flags &= ~TCQ_F_OFFLOADED; + if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc) + return 0; + + err = dev->netdev_ops->ndo_setup_tc(dev, type, type_data); + if (err == -EOPNOTSUPP) + return 0; + + if (!err) + sch->flags |= TCQ_F_OFFLOADED; + + return err; +} +EXPORT_SYMBOL(qdisc_offload_dump_helper); + static int tc_fill_qdisc(struct sk_buff *skb, struct Qdisc *q, u32 clid, u32 portid, u32 seq, u16 flags, int event) { |