diff options
| -rw-r--r-- | include/linux/netdevice.h | 1 | ||||
| -rw-r--r-- | include/net/pkt_cls.h | 22 | ||||
| -rw-r--r-- | net/sched/sch_tbf.c | 55 |
3 files changed, 78 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 5ec3537fbdb1..11bdf6cb30bd 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -850,6 +850,7 @@ enum tc_setup_type { TC_SETUP_QDISC_TAPRIO, TC_SETUP_FT, TC_SETUP_QDISC_ETS, + TC_SETUP_QDISC_TBF, }; /* These structures hold the attributes of bpf state that are being passed diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index 47b115e2012a..ce036492986a 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -854,4 +854,26 @@ struct tc_ets_qopt_offload { }; }; +enum tc_tbf_command { + TC_TBF_REPLACE, + TC_TBF_DESTROY, + TC_TBF_STATS, +}; + +struct tc_tbf_qopt_offload_replace_params { + struct psched_ratecfg rate; + u32 max_size; + struct gnet_stats_queue *qstats; +}; + +struct tc_tbf_qopt_offload { + enum tc_tbf_command command; + u32 handle; + u32 parent; + union { + struct tc_tbf_qopt_offload_replace_params replace_params; + struct tc_qopt_offload_stats stats; + }; +}; + #endif diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c index 7ae317958090..78e79029dc63 100644 --- a/net/sched/sch_tbf.c +++ b/net/sched/sch_tbf.c @@ -15,6 +15,7 @@ #include <linux/skbuff.h> #include <net/netlink.h> #include <net/sch_generic.h> +#include <net/pkt_cls.h> #include <net/pkt_sched.h> @@ -137,6 +138,52 @@ static u64 psched_ns_t2l(const struct psched_ratecfg *r, return len; } +static void tbf_offload_change(struct Qdisc *sch) +{ + struct tbf_sched_data *q = qdisc_priv(sch); + struct net_device *dev = qdisc_dev(sch); + struct tc_tbf_qopt_offload qopt; + + if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc) + return; + + qopt.command = TC_TBF_REPLACE; + qopt.handle = sch->handle; + qopt.parent = sch->parent; + qopt.replace_params.rate = q->rate; + qopt.replace_params.max_size = q->max_size; + qopt.replace_params.qstats = &sch->qstats; + + dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_TBF, &qopt); +} + +static void tbf_offload_destroy(struct Qdisc *sch) +{ + struct net_device *dev = qdisc_dev(sch); + struct tc_tbf_qopt_offload qopt; + + if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc) + return; + + qopt.command = TC_TBF_DESTROY; + qopt.handle = sch->handle; + qopt.parent = sch->parent; + dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_TBF, &qopt); +} + +static int tbf_offload_dump(struct Qdisc *sch) +{ + struct tc_tbf_qopt_offload qopt; + + qopt.command = TC_TBF_STATS; + qopt.handle = sch->handle; + qopt.parent = sch->parent; + qopt.stats.bstats = &sch->bstats; + qopt.stats.qstats = &sch->qstats; + + return qdisc_offload_dump_helper(sch, TC_SETUP_QDISC_TBF, &qopt); +} + /* GSO packet is too big, segment it so that tbf can transmit * each segment in time */ @@ -407,6 +454,8 @@ static int tbf_change(struct Qdisc *sch, struct nlattr *opt, sch_tree_unlock(sch); err = 0; + + tbf_offload_change(sch); done: return err; } @@ -432,6 +481,7 @@ static void tbf_destroy(struct Qdisc *sch) struct tbf_sched_data *q = qdisc_priv(sch); qdisc_watchdog_cancel(&q->watchdog); + tbf_offload_destroy(sch); qdisc_put(q->qdisc); } @@ -440,6 +490,11 @@ static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb) struct tbf_sched_data *q = qdisc_priv(sch); struct nlattr *nest; struct tc_tbf_qopt opt; + int err; + + err = tbf_offload_dump(sch); + if (err) + return err; nest = nla_nest_start_noflag(skb, TCA_OPTIONS); if (nest == NULL) |