Vinicius Costa Gomes 9c66d15646 taprio: Add support for hardware offloading ... This allows taprio to offload the schedule enforcement to capable network cards, resulting in more precise windows and less CPU usage. The gate mask acts on traffic classes (groups of queues of same priority), as specified in IEEE 802.1Q-2018, and following the existing taprio and mqprio semantics. It is up to the driver to perform conversion between tc and individual netdev queues if for some reason it needs to make that distinction. Full offload is requested from the network interface by specifying "flags 2" in the tc qdisc creation command, which in turn corresponds to the TCA_TAPRIO_ATTR_FLAG_FULL_OFFLOAD bit. The important detail here is the clockid which is implicitly /dev/ptpN for full offload, and hence not configurable. A reference counting API is added to support the use case where Ethernet drivers need to keep the taprio offload structure locally (i.e. they are a multi-port switch driver, and configuring a port depends on the settings of other ports as well). The refcount_t variable is kept in a private structure (__tc_taprio_qopt_offload) and not exposed to drivers. In the future, the private structure might also be expanded with a backpointer to taprio_sched *q, to implement the notification system described in the patch (of when admin became oper, or an error occurred, etc, so the offload can be monitored with 'tc qdisc show'). Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by: Voon Weifeng <weifeng.voon@intel.com> Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2019-09-16 21:32:57 +02:00
..
act_api.c	idr: fix overflow case for idr_for_each_entry_ul()	2019-07-01 19:15:46 -07:00
act_bpf.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_connmark.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_csum.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_ct.c	netfilter: update include directives.	2019-09-13 12:33:06 +02:00
act_ctinfo.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_gact.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_ife.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_ipt.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_meta_mark.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
act_meta_skbprio.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
act_meta_skbtcindex.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
act_mirred.c	net: sched: use get_dev() action API in flow_action infra	2019-09-16 09:18:03 +02:00
act_mpls.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_nat.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_pedit.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_police.c	net_sched: act_police: add 2 new attributes to support police 64bit rate and peakrate	2019-09-06 15:02:16 +02:00
act_sample.c	net: sched: take reference to psample group in flow_action infra	2019-09-16 09:18:03 +02:00
act_simple.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_skbedit.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_skbmod.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_tunnel_key.c	net_sched: fix a NULL pointer deref in ipt action	2019-08-27 15:05:58 -07:00
act_vlan.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-09-02 11:20:17 -07:00
cls_api.c	net: sched: use get_dev() action API in flow_action infra	2019-09-16 09:18:03 +02:00
cls_basic.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cls_bpf.c	net: sched: refactor block offloads counter usage	2019-08-26 14:17:43 -07:00
cls_cgroup.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cls_flow.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cls_flower.c	net: sched: flower: don't take rtnl lock for cls hw offloads API	2019-08-26 14:17:43 -07:00
cls_fw.c	net: sched: remove NET_CLS_IND config option	2019-06-15 14:06:13 -07:00
cls_matchall.c	net: sched: cls_matchall: cleanup flow_action before deallocating	2019-08-30 15:12:05 -07:00
cls_route.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cls_rsvp6.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cls_rsvp.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cls_rsvp.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cls_tcindex.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
cls_u32.c	net: sched: refactor block offloads counter usage	2019-08-26 14:17:43 -07:00
em_canid.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 11	2019-05-21 11:28:45 +02:00
em_cmp.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
em_ipset.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
em_ipt.c	net: sched: em_ipt: add support for addrtype matching	2019-06-29 11:15:12 -07:00
em_meta.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
em_nbyte.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
em_text.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
em_u32.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
ematch.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
Kconfig	net: openvswitch: Set OvS recirc_id from tc chain index	2019-09-06 14:59:18 +02:00
Makefile	net/sched: Introduce action ct	2019-07-09 12:11:59 -07:00
sch_api.c	net_sched: check cops->tcf_block in tc_bind_tclass()	2019-09-10 18:28:56 +01:00
sch_atm.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
sch_blackhole.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_cake.c	netlink: make validation more configurable for future strictness	2019-04-27 17:07:21 -04:00
sch_cbq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_cbs.c	net/sched: cbs: remove redundant assignment to variable port_rate	2019-09-05 09:37:02 +02:00
sch_choke.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
sch_codel.c	net: sched: Fix a possible null-pointer dereference in dequeue_func()	2019-07-29 09:46:58 -07:00
sch_drr.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
sch_dsmark.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
sch_etf.c	etf: Add skip_sock_check	2019-06-28 14:45:33 -07:00
sch_fifo.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_fq_codel.c	fq_codel: remove set but not used variables 'prev_ecn_mark' and 'prev_drop_count'	2019-08-08 22:32:19 -07:00
sch_fq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_generic.c	net: sched: fix reordering issues	2019-09-06 15:12:33 +02:00
sch_gred.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_hfsc.c	netlink: make validation more configurable for future strictness	2019-04-27 17:07:21 -04:00
sch_hhf.c	sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero	2019-09-10 18:31:00 +01:00
sch_htb.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_ingress.c	net: flow_offload: rename TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_*	2019-07-09 14:38:50 -07:00
sch_mq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
sch_mqprio.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
sch_multiq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
sch_netem.c	net: netem: fix use after free and double free with packet corruption	2019-06-18 21:30:38 -04:00
sch_pie.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235	2019-06-19 17:09:07 +02:00
sch_plug.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_prio.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_qfq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
sch_red.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_sfb.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
sch_sfq.c	net_sched: unset TCQ_F_CAN_BYPASS when adding filters	2019-07-17 13:34:09 -07:00
sch_skbprio.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_taprio.c	taprio: Add support for hardware offloading	2019-09-16 21:32:57 +02:00
sch_tbf.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sch_teql.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00