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Petr Machata 0a7fad2376 net: sched: RED: Introduce an ECN nodrop mode 
When the RED Qdisc is currently configured to enable ECN, the RED algorithm
is used to decide whether a certain SKB should be marked. If that SKB is
not ECN-capable, it is early-dropped.

It is also possible to keep all traffic in the queue, and just mark the
ECN-capable subset of it, as appropriate under the RED algorithm. Some
switches support this mode, and some installations make use of it.

To that end, add a new RED flag, TC_RED_NODROP. When the Qdisc is
configured with this flag, non-ECT traffic is enqueued instead of being
early-dropped.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-14 21:03:46 -07:00
..
act_api.c
sched: act: allow user to specify type of HW stats for a filter
2020-03-08 21:07:48 -07:00
act_bpf.c
net: sched: update action implementations to support flags
2019-10-30 18:07:51 -07:00
act_connmark.c
net: sched: update action implementations to support flags
2019-10-30 18:07:51 -07:00
act_csum.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-11-26 15:42:43 -08:00
act_ct.c
net/sched: act_ct: Enable hardware offload of flow table entires
2020-03-12 15:00:39 -07:00
act_ctinfo.c
net: sched: act_ctinfo: fix memory leak
2020-01-19 16:02:15 +01:00
act_gact.c
net: sched: update action implementations to support flags
2019-10-30 18:07:51 -07:00
act_ife.c
net/sched: act_ife: initalize ife->metalist earlier
2020-01-17 10:58:15 +01:00
act_ipt.c
net: sched: update action implementations to support flags
2019-10-30 18:07:51 -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: act_mirred: Pull mac prior redir to non mac_header_xmit device
2019-12-27 16:35:32 -08:00
act_mpls.c
net: Fixed updating of ethertype in skb_mpls_push()
2019-12-04 17:11:25 -08:00
act_nat.c
icmp: remove duplicate code
2019-11-05 14:03:11 -08:00
act_pedit.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2019-11-22 16:27:24 -08:00
act_police.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-11-26 15:42:43 -08:00
act_sample.c
net: sched: lock action when translating it to flow_action infra
2020-02-17 14:17:02 -08:00
act_simple.c
net_sched: extend packet counter to 64bit
2019-11-05 18:20:55 -08:00
act_skbedit.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-11-26 15:42:43 -08:00
act_skbmod.c
net: sched: update action implementations to support flags
2019-10-30 18:07:51 -07:00
act_tunnel_key.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-11-26 15:42:43 -08:00
act_vlan.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-11-26 15:42:43 -08:00
cls_api.c
net/sched: act_ct: Enable hardware offload of flow table entires
2020-03-12 15:00:39 -07:00
cls_basic.c
net_sched: fix ops->bind_class() implementations
2020-01-27 10:51:43 +01:00
cls_bpf.c
net_sched: fix ops->bind_class() implementations
2020-01-27 10:51:43 +01:00
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
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-02-21 13:39:34 -08:00
cls_fw.c
net_sched: fix ops->bind_class() implementations
2020-01-27 10:51:43 +01:00
cls_matchall.c
net: sched: don't take rtnl lock during flow_action setup
2020-02-17 14:17:02 -08:00
cls_route.c
net_sched: fix ops->bind_class() implementations
2020-01-27 10:51:43 +01:00
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
cls_rsvp: fix rsvp_policy
2020-02-01 12:25:06 -08:00
cls_tcindex.c
net_sched: fix a resource leak in tcindex_set_parms()
2020-02-05 14:11:57 +01:00
cls_u32.c
net_sched: fix ops->bind_class() implementations
2020-01-27 10:51:43 +01:00
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: Replace zero-length array with flexible-array member
2020-02-29 21:27:02 -08:00
em_meta.c
net: annotate lockless accesses to sk->sk_max_ack_backlog
2019-11-06 16:14:48 -08:00
em_nbyte.c
net: sched: Replace zero-length array with flexible-array member
2020-02-29 21:27:02 -08:00
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
net_sched: ematch: reject invalid TCF_EM_SIMPLE
2020-01-27 10:55:26 +01:00
Kconfig
net/sched: act_ct: Create nf flow table per zone
2020-03-03 15:09:12 -08:00
Makefile
net: sched: add Flow Queue PIE packet scheduler
2020-01-23 11:38:31 +01:00
sch_api.c
net_sched: walk through all child classes in tc_bind_tclass()
2020-01-27 10:52:46 +01:00
sch_atm.c
net: sched: Replace zero-length array with flexible-array member
2020-02-29 21:27:02 -08:00
sch_blackhole.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
sch_cake.c
net: sched: use skb_list_walk_safe helper for gso segments
2020-01-14 11:48:41 -08:00
sch_cbq.c
sch_cbq: validate TCA_CBQ_WRROPT to avoid crash
2019-09-30 11:07:46 -07:00
sch_cbs.c
net: sched: cbs: Avoid division by zero when calculating the port rate
2019-10-01 09:51:39 -07:00
sch_choke.c
sch_choke: Use kvcalloc
2020-01-29 11:58:10 +01:00
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
sch_dsmark: fix potential NULL deref in dsmark_init()
2019-10-04 18:28:30 -07:00
sch_etf.c
sched: etf: Fix ordering of packets with same txtime
2019-10-15 20:32:04 -07:00
sch_ets.c
net: sch_ets: Make the ETS qdisc offloadable
2019-12-18 13:32:29 -08:00
sch_fifo.c
net: sched: Make FIFO Qdisc offloadable
2020-03-05 14:03:31 -08:00
sch_fq_codel.c
fq_codel: do not include <linux/jhash.h>
2019-10-22 15:31:42 -07:00
sch_fq_pie.c
pie: remove pie_vars->accu_prob_overflows
2020-03-04 13:25:55 -08:00
sch_fq.c
net: fq: add missing attribute validation for orphan mask
2020-03-03 13:28:48 -08:00
sch_generic.c
Revert "net: sched: make newly activated qdiscs visible"
2020-03-12 11:19:24 -07:00
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
net/flow_dissector: switch to siphash
2019-10-23 20:13:22 -07:00
sch_htb.c
net: sched: sch_htb: don't call qdisc_put() while holding tree lock
2019-09-27 12:13:55 +02:00
sch_ingress.c
net: sched: Pass ingress block to tcf_classify_ingress
2020-02-19 17:49:48 -08:00
sch_mq.c
net: sched: fix dump qlen for sch_mq/sch_mqprio with NOLOCK subqueues
2019-12-03 11:53:55 -08:00
sch_mqprio.c
mqprio: Fix out-of-bounds access in mqprio_dump
2019-12-06 11:58:45 -08:00
sch_multiq.c
net: sched: fix tc -s class show no bstats on class with nolock subqueues
2019-11-30 10:38:40 -08:00
sch_netem.c
net: sched: Replace zero-length array with flexible-array member
2020-02-29 21:27:02 -08:00
sch_pie.c
net: sched: pie: change tc_pie_xstats->prob
2020-03-09 18:05:55 -07:00
sch_plug.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
sch_prio.c
net: sch_prio: When ungrafting, replace with FIFO
2020-01-08 12:45:53 -08:00
sch_qfq.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
sch_red.c
net: sched: RED: Introduce an ECN nodrop mode
2020-03-14 21:03:46 -07:00
sch_sfb.c
net/flow_dissector: switch to siphash
2019-10-23 20:13:22 -07:00
sch_sfq.c
net/flow_dissector: switch to siphash
2019-10-23 20:13:22 -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: Fix sending packets without dequeueing them
2020-03-12 11:25:08 -07:00
sch_tbf.c
net: sched: Make TBF Qdisc offloadable
2020-01-25 10:56:31 +01:00
sch_teql.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00