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David Ward a3eb95f891 net_sched: gred: add TCA_GRED_LIMIT attribute 
In a GRED qdisc, if the default "virtual queue" (VQ) does not have drop
parameters configured, then packets for the default VQ are not subjected
to RED and are only dropped if the queue is larger than the net_device's
tx_queue_len. This behavior is useful for WRED mode, since these packets
will still influence the calculated average queue length and (therefore)
the drop probability for all of the other VQs. However, for some drivers
tx_queue_len is zero. In other cases the user may wish to make the limit
the same for all VQs (including the default VQ with no drop parameters).

This change adds a TCA_GRED_LIMIT attribute to set the GRED queue limit,
in bytes, during qdisc setup. (This limit is in bytes to be consistent
with the drop parameters.) The default limit is the same as for a bfifo
queue (tx_queue_len * psched_mtu). If the drop parameters of any VQ are
configured with a smaller limit than the GRED queue limit, that VQ will
still observe the smaller limit instead.

Signed-off-by: David Ward <david.ward@ll.mit.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2015-05-12 18:22:49 -04:00
..
Kconfig Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2015-02-19 10:36:45 -08:00
Makefile net: sched: Introduce connmark action 2015-01-19 16:02:06 -05:00
act_api.c net: sched: remove TC_MUNGED bits 2015-05-02 22:25:17 -04:00
act_bpf.c bpf: fix bpf helpers to use skb->mac_header relative offsets 2015-04-16 14:08:49 -04:00
act_connmark.c net: sched: act_connmark: don't zap skb->nfct 2015-04-29 14:56:40 -04:00
act_csum.c net: sched: fix skb->protocol use in case of accelerated vlan path 2015-01-13 17:51:08 -05:00
act_gact.c sched: fix act file names in header comment 2014-11-06 15:04:41 -05:00
act_ipt.c sched: fix act file names in header comment 2014-11-06 15:04:41 -05:00
act_mirred.c act_mirred: Fix bogus header when redirecting from VLAN 2015-04-17 13:29:28 -04:00
act_nat.c net_sched: act: move tcf_hashinfo_init() into tcf_register_action() 2014-02-12 19:23:32 -05:00
act_pedit.c net: sched: remove TC_MUNGED bits 2015-05-02 22:25:17 -04:00
act_police.c sched: fix act file names in header comment 2014-11-06 15:04:41 -05:00
act_simple.c sched: fix act file names in header comment 2014-11-06 15:04:41 -05:00
act_skbedit.c net_sched: act: move tcf_hashinfo_init() into tcf_register_action() 2014-02-12 19:23:32 -05:00
act_vlan.c sched: introduce vlan action 2014-11-21 14:20:18 -05:00
cls_api.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_basic.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_bpf.c bpf: fix bpf helpers to use skb->mac_header relative offsets 2015-04-16 14:08:49 -04:00
cls_cgroup.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_flow.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_fw.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_route.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_rsvp.c
…
cls_rsvp.h net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_rsvp6.c
…
cls_tcindex.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
cls_u32.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-03-20 18:51:09 -04:00
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 net: sched: fix skb->protocol use in case of accelerated vlan path 2015-01-13 17:51:08 -05:00
em_meta.c net: rename vlan_tx_* helpers since "tx" is misleading there 2015-01-13 17:51:08 -05:00
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 ematch: Fix auto-loading of ematch modules. 2015-02-20 15:30:56 -05:00
sch_api.c net_sched: destroy proto tp when all filters are gone 2015-03-09 15:35:55 -04:00
sch_atm.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_blackhole.c
…
sch_cbq.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_choke.c sch_choke: Use flow_keys_digest 2015-05-04 00:09:09 -04:00
sch_codel.c codel: add ce_threshold attribute 2015-05-10 19:50:20 -04:00
sch_drr.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_dsmark.c net: sched: fix skb->protocol use in case of accelerated vlan path 2015-01-13 17:51:08 -05:00
sch_fifo.c net: sched: implement qstat helper routines 2014-09-30 01:02:26 -04:00
sch_fq.c pkt_sched: fq: correct spelling of locally 2015-04-01 22:52:29 -04:00
sch_fq_codel.c codel: add ce_threshold attribute 2015-05-10 19:50:20 -04:00
sch_generic.c net_sched: restore qdisc quota fairness limits after bulk dequeue 2014-10-09 19:12:26 -04:00
sch_gred.c net_sched: gred: add TCA_GRED_LIMIT attribute 2015-05-12 18:22:49 -04:00
sch_hfsc.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_hhf.c sched: Call skb_get_hash_perturb in sch_hhf 2015-05-04 00:09:08 -04:00
sch_htb.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_ingress.c net: sched: further simplify handle_ing 2015-05-11 11:10:35 -04:00
sch_mq.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_mqprio.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_multiq.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_netem.c net: sched: deprecate enqueue_root() 2015-05-11 14:17:32 -04:00
sch_pie.c sch_pie: schedule the timer after all init succeed 2014-10-29 14:28:01 -04:00
sch_plug.c
…
sch_prio.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_qfq.c net: sched: enable per cpu qstats 2014-09-30 01:02:26 -04:00
sch_red.c net: sched: implement qstat helper routines 2014-09-30 01:02:26 -04:00
sch_sfb.c sched: Call skb_get_hash_perturb in sch_sfb 2015-05-04 00:09:08 -04:00
sch_sfq.c sched: Call skb_get_hash_perturb in sch_sfq 2015-05-04 00:09:08 -04:00
sch_tbf.c net: sched: avoid costly atomic operation in fq_dequeue() 2014-10-06 00:55:10 -04:00
sch_teql.c net: sched: fix skb->protocol use in case of accelerated vlan path 2015-01-13 17:51:08 -05:00