Jesper Dangaard Brouer e543002f77 qdisc: add tracepoint qdisc:qdisc_dequeue for dequeued SKBs ...

The main purpose of this tracepoint is to monitor bulk dequeue
in the network qdisc layer, as it cannot be deducted from the
existing qdisc stats.

The txq_state can be used for determining the reason for zero packet
dequeues, see enum netdev_queue_state_t.

Notice all packets doesn't necessary activate this tracepoint. As
qdiscs with flag TCQ_F_CAN_BYPASS, can directly invoke
sch_direct_xmit() when qdisc_qlen is zero.

Remember that perf record supports filters like:

 perf record -e qdisc:qdisc_dequeue \
  --filter 'ifindex == 4 && (packets > 1 || txq_state > 0)'

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2017-08-16 14:10:10 -07:00

..

act_api.c

rtnetlink: make rtnl_register accept a flags parameter

2017-08-09 16:57:38 -07:00

act_bpf.c

bpf: expose prog id for cls_bpf and act_bpf

2017-06-21 15:14:23 -04:00

act_connmark.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_csum.c

net: Remove all references to SKB_GSO_UDP.

2017-07-17 09:52:58 -07:00

act_gact.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_ife.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_ipt.c

net: sched: set xt_tgchk_param par.nft_compat as 0 in ipt_init_target

2017-08-09 22:46:44 -07:00

act_meta_mark.c

Support to encoding decoding skb mark on IFE action

2016-03-01 17:15:23 -05:00

act_meta_skbprio.c

Support to encoding decoding skb prio on IFE action

2016-03-01 17:15:23 -05:00

act_meta_skbtcindex.c

net sched ife action: Introduce skb tcindex metadata encap decap

2016-09-19 21:55:28 -04:00

act_mirred.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_nat.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_pedit.c

net/act_pedit: fix an error code

2017-06-14 15:24:18 -04:00

act_police.c

net_sched: move tcf_lock down after gen_replace_estimator()

2017-06-14 14:39:19 -04:00

act_sample.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_simple.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_skbedit.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_skbmod.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

act_tunnel_key.c

net: sched: act_tunnel_key: make UDP checksum configurable

2017-06-15 14:21:03 -04:00

act_vlan.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

cls_api.c

rtnetlink: make rtnl_register accept a flags parameter

2017-08-09 16:57:38 -07:00

cls_basic.c

net_sched: use void pointer for filter handle

2017-08-07 14:12:17 -07:00

cls_bpf.c

net: sched: remove cops->tcf_cl_offload

2017-08-11 13:47:01 -07:00

cls_cgroup.c

net_sched: use void pointer for filter handle

2017-08-07 14:12:17 -07:00

cls_flow.c

net_sched: use void pointer for filter handle

2017-08-07 14:12:17 -07:00

cls_flower.c

net: sched: remove cops->tcf_cl_offload

2017-08-11 13:47:01 -07:00

cls_fw.c

net_sched: use void pointer for filter handle

2017-08-07 14:12:17 -07:00

cls_matchall.c

net: sched: remove cops->tcf_cl_offload

2017-08-11 13:47:01 -07:00

cls_route.c

net_sched: use void pointer for filter handle

2017-08-07 14:12:17 -07:00

cls_rsvp6.c

…

cls_rsvp.c

…

cls_rsvp.h

net_sched: use void pointer for filter handle

2017-08-07 14:12:17 -07:00

cls_tcindex.c

net_sched: use void pointer for filter handle

2017-08-07 14:12:17 -07:00

cls_u32.c

net: sched: remove cops->tcf_cl_offload

2017-08-11 13:47:01 -07:00

em_canid.c

net: sched: remove tcf_proto from ematch calls

2014-10-06 18:02:32 -04:00

em_cmp.c

…

em_ipset.c

netfilter: x_tables: move hook state into xt_action_param structure

2016-11-03 10:56:21 +01:00

em_meta.c

net: convert sock.sk_refcnt from atomic_t to refcount_t

2017-07-01 07:39:08 -07:00

em_nbyte.c

net: sched: remove tcf_proto from ematch calls

2014-10-06 18:02:32 -04:00

em_text.c

net: Remove state argument from skb_find_text()

2015-02-22 15:59:54 -05:00

em_u32.c

…

ematch.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

Kconfig

net: sched: select cls when cls_act is enabled

2017-06-05 10:56:36 -04:00

Makefile

net/sched: Introduce sample tc action

2017-01-24 13:44:28 -05:00

sch_api.c

net_sched: call qlen_notify only if child qdisc is empty

2017-08-16 10:55:34 -07:00

sch_atm.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-08-15 20:23:23 -07:00

sch_blackhole.c

net_sched: drop packets after root qdisc lock is released

2016-06-25 12:19:35 -04:00

sch_cbq.c

net_sched: call qlen_notify only if child qdisc is empty

2017-08-16 10:55:34 -07:00

sch_choke.c

treewide: use kv[mz]alloc* rather than opencoded variants

2017-05-08 17:15:13 -07:00

sch_codel.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

sch_drr.c

net_sched: call qlen_notify only if child qdisc is empty

2017-08-16 10:55:34 -07:00

sch_dsmark.c

net: sched: introduce a TRAP control action

2017-06-06 12:45:23 -04:00

sch_fifo.c

sched: don't use skb queue helpers

2016-09-19 01:47:18 -04:00

sch_fq_codel.c

net: sched: introduce a TRAP control action

2017-06-06 12:45:23 -04:00

sch_fq.c

mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic

2017-07-12 16:26:03 -07:00

sch_generic.c

qdisc: add tracepoint qdisc:qdisc_dequeue for dequeued SKBs

2017-08-16 14:10:10 -07:00

sch_gred.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

sch_hfsc.c

net_sched/hfsc: opencode trivial set_active() and set_passive()

2017-08-16 10:55:34 -07:00

sch_hhf.c

treewide: use kv[mz]alloc* rather than opencoded variants

2017-05-08 17:15:13 -07:00

sch_htb.c

net_sched: call qlen_notify only if child qdisc is empty

2017-08-16 10:55:34 -07:00

sch_ingress.c

net: sched: remove cops->tcf_cl_offload

2017-08-11 13:47:01 -07:00

sch_mq.c

net: sched: make default fifo qdiscs appear in the dump

2017-03-12 22:53:02 -07:00

sch_mqprio.c

net: sched: get rid of struct tc_to_netdev

2017-08-07 09:42:37 -07:00

sch_multiq.c

net: sched: introduce a TRAP control action

2017-06-06 12:45:23 -04:00

sch_netem.c

treewide: use kv[mz]alloc* rather than opencoded variants

2017-05-08 17:15:13 -07:00

sch_pie.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

sch_plug.c

net_sched: drop packets after root qdisc lock is released

2016-06-25 12:19:35 -04:00

sch_prio.c

net: sched: introduce a TRAP control action

2017-06-06 12:45:23 -04:00

sch_qfq.c

net_sched: call qlen_notify only if child qdisc is empty

2017-08-16 10:55:34 -07:00

sch_red.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

sch_sfb.c

net: sched: introduce a TRAP control action

2017-06-06 12:45:23 -04:00

sch_sfq.c

net_sched/sfq: update hierarchical backlog when drop packet

2017-08-15 17:16:39 -07:00

sch_tbf.c

netlink: pass extended ACK struct to parsing functions

2017-04-13 13:58:22 -04:00

sch_teql.c

net: make ndo_get_stats64 a void function

2017-01-08 17:51:44 -05:00