diff options
| author | Nogah Frankel <nogahf@mellanox.com> | 2017-12-25 11:51:41 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-02 21:17:45 +0300 |
| commit | 8234af2db3614d78b49e77ef46ea8cfab6586568 (patch) | |
| tree | c0aff4a155d19ce10b30b9afc61227fc3fb8bb9c /net/sched/sch_red.c | |
| parent | 75ce7191eac5972405d1752a991bc002c2957b65 (diff) | |
| download | linux-8234af2db3614d78b49e77ef46ea8cfab6586568.tar.xz | |
net_sch: red: Fix the new offload indication
Update the offload flag, TCQ_F_OFFLOADED, in each dump call (and ignore
the offloading function return value in relation to this flag).
This is done because a qdisc is being initialized, and therefore offloaded
before being grafted. Since the ability of the driver to offload the qdisc
depends on its location, a qdisc can be offloaded and un-offloaded by graft
calls, that doesn't effect the qdisc itself.
Fixes: 428a68af3a7c ("net: sched: Move to new offload indication in RED"
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Yuval Mintz <yuvalm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_red.c')
| -rw-r--r-- | net/sched/sch_red.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index ec0bd36e09a9..a392eaa4a0b4 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -157,7 +157,6 @@ static int red_offload(struct Qdisc *sch, bool enable) .handle = sch->handle, .parent = sch->parent, }; - int err; if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc) return -EOPNOTSUPP; @@ -172,14 +171,7 @@ static int red_offload(struct Qdisc *sch, bool enable) opt.command = TC_RED_DESTROY; } - err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_RED, &opt); - - if (!err && enable) - sch->flags |= TCQ_F_OFFLOADED; - else - sch->flags &= ~TCQ_F_OFFLOADED; - - return err; + return dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_RED, &opt); } static void red_destroy(struct Qdisc *sch) @@ -297,12 +289,22 @@ static int red_dump_offload_stats(struct Qdisc *sch, struct tc_red_qopt *opt) .stats.qstats = &sch->qstats, }, }; + int err; + + sch->flags &= ~TCQ_F_OFFLOADED; - if (!(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, TC_SETUP_QDISC_RED, + &hw_stats); + if (err == -EOPNOTSUPP) return 0; - return dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_RED, - &hw_stats); + if (!err) + sch->flags |= TCQ_F_OFFLOADED; + + return err; } static int red_dump(struct Qdisc *sch, struct sk_buff *skb) |