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OpenCloudOS-Kernel/net/sched
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Vladimir Oltean a54fc09e4c net/sched: taprio: allow user input of per-tc max SDU 
IEEE 802.1Q clause 12.29.1.1 "The queueMaxSDUTable structure and data
types" and 8.6.8.4 "Enhancements for scheduled traffic" talk about the
existence of a per traffic class limitation of maximum frame sizes, with
a fallback on the port-based MTU.

As far as I am able to understand, the 802.1Q Service Data Unit (SDU)
represents the MAC Service Data Unit (MSDU, i.e. L2 payload), excluding
any number of prepended VLAN headers which may be otherwise present in
the MSDU. Therefore, the queueMaxSDU is directly comparable to the
device MTU (1500 means L2 payload sizes are accepted, or frame sizes of
1518 octets, or 1522 plus one VLAN header). Drivers which offload this
are directly responsible of translating into other units of measurement.

To keep the fast path checks optimized, we keep 2 arrays in the qdisc,
one for max_sdu translated into frame length (so that it's comparable to
skb->len), and another for offloading and for dumping back to the user.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2022-09-29 18:52:05 -07:00
..
Kconfig net: sched: incorrect Kconfig dependencies on Netfilter modules 2020-12-09 15:49:29 -08:00
Makefile net/sched: sch_frag: add generic packet fragment support. 2020-11-27 14:36:02 -08:00
act_api.c net: sched: act_api: implement generic walker and search for tc action 2022-09-09 08:24:41 +01:00
act_bpf.c net: sched: act_bpf: simplify code logic in tcf_bpf_init() 2022-09-28 09:38:56 +01:00
act_connmark.c net: sched: act_connmark: get rid of tcf_connmark_walker and tcf_connmark_search 2022-09-09 08:24:41 +01:00
act_csum.c net: sched: act_csum: get rid of tcf_csum_walker and tcf_csum_search 2022-09-09 08:24:41 +01:00
act_ct.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-09-29 14:30:51 -07:00
act_ctinfo.c net: sched: act_ctinfo: get rid of tcf_ctinfo_walker and tcf_ctinfo_search 2022-09-09 08:24:41 +01:00
act_gact.c net: sched: act_gact: get rid of tcf_gact_walker and tcf_gact_search 2022-09-09 08:24:41 +01:00
act_gate.c net: sched: act_gate: get rid of tcf_gate_walker and tcf_gate_search 2022-09-09 08:24:42 +01:00
act_ife.c net: sched: act_ife: get rid of tcf_ife_walker and tcf_ife_search 2022-09-09 08:24:42 +01:00
act_ipt.c net: sched: act_ipt: get rid of tcf_ipt_walker/tcf_xt_walker and tcf_ipt_search/tcf_xt_search 2022-09-09 08:24:42 +01:00
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: remove unused tcf_result extension 2022-09-21 18:32:33 -07:00
act_mpls.c net: sched: act_mpls: get rid of tcf_mpls_walker and tcf_mpls_search 2022-09-09 08:24:42 +01:00
act_nat.c net: sched: act_nat: get rid of tcf_nat_walker and tcf_nat_search 2022-09-09 08:24:42 +01:00
act_pedit.c net: sched: act_pedit: get rid of tcf_pedit_walker and tcf_pedit_search 2022-09-09 08:24:42 +01:00
act_police.c net: sched: act_police: get rid of tcf_police_walker and tcf_police_search 2022-09-09 08:24:42 +01:00
act_sample.c net: sched: act_sample: get rid of tcf_sample_walker and tcf_sample_search 2022-09-09 08:24:42 +01:00
act_simple.c net: sched: act_simple: get rid of tcf_simp_walker and tcf_simp_search 2022-09-09 08:24:42 +01:00
act_skbedit.c net: sched: act_skbedit: get rid of tcf_skbedit_walker and tcf_skbedit_search 2022-09-09 08:24:42 +01:00
act_skbmod.c net: sched: act_skbmod: get rid of tcf_skbmod_walker and tcf_skbmod_search 2022-09-09 08:24:42 +01:00
act_tunnel_key.c net: sched: act_tunnel_key: get rid of tunnel_key_walker and tunnel_key_search 2022-09-09 08:24:42 +01:00
act_vlan.c net: sched: act_vlan: get rid of tcf_vlan_walker and tcf_vlan_search 2022-09-09 08:24:43 +01:00
cls_api.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-09-22 13:02:10 -07:00
cls_basic.c net/sched: use tc_cls_stats_dump() in filter 2022-09-20 15:54:13 -07:00
cls_bpf.c net/sched: use tc_cls_stats_dump() in filter 2022-09-20 15:54:13 -07:00
cls_cgroup.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_flow.c net/sched: use tc_cls_stats_dump() in filter 2022-09-20 15:54:13 -07:00
cls_flower.c net/sched: flower: Add L2TPv3 filter 2022-09-20 09:13:38 +02:00
cls_fw.c net/sched: use tc_cls_stats_dump() in filter 2022-09-20 15:54:13 -07:00
cls_matchall.c net: sched: simplify code in mall_reoffload 2022-09-21 18:22:04 -07:00
cls_route.c net/sched: use tc_cls_stats_dump() in filter 2022-09-20 15:54:13 -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 net/sched: use tc_cls_stats_dump() in filter 2022-09-20 15:54:13 -07:00
cls_rsvp6.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cls_tcindex.c net/sched: use tc_cls_stats_dump() in filter 2022-09-20 15:54:13 -07:00
cls_u32.c net: sched: cls_u32: Avoid memcpy() false-positive warning 2022-09-29 18:44:07 -07:00
em_canid.c net: sched: kerneldoc fixes 2020-07-13 17:20:40 -07:00
em_cmp.c net: sched: fix misspellings using misspell-fixer tool 2020-11-10 17:00:28 -08:00
em_ipset.c sched: consistently handle layer3 header accesses in the presence of VLANs 2020-07-03 14:34:53 -07:00
em_ipt.c sched: consistently handle layer3 header accesses in the presence of VLANs 2020-07-03 14:34:53 -07:00
em_meta.c net_sched: em_meta: add READ_ONCE() in var_sk_bound_if() 2022-05-16 10:31:06 +01:00
em_nbyte.c net: sched: Return the correct errno code 2021-02-06 11:15:28 -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: Fix spelling mistakes 2021-05-31 22:44:56 -07:00
sch_api.c net/sched: query offload capabilities through ndo_setup_tc() 2022-09-29 18:52:01 -07:00
sch_atm.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_blackhole.c Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sch_cake.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_cbq.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_cbs.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_choke.c net: sched: choke: remove unused variables in struct choke_sched_data 2022-08-31 19:39:53 -07:00
sch_codel.c net: sched: remove redundant NULL check in change hook function 2022-09-01 08:06:45 +02:00
sch_drr.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_dsmark.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_etf.c net: sched: etf: remove true check in etf_enable_offload() 2022-09-01 20:08:32 -07:00
sch_ets.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_fifo.c net_sched: fix NULL deref in fifo_set_limit() 2021-10-01 14:59:10 -07:00
sch_fq.c net: sched: remove redundant NULL check in change hook function 2022-09-01 08:06:45 +02:00
sch_fq_codel.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_fq_pie.c net: sched: remove redundant NULL check in change hook function 2022-09-01 08:06:45 +02:00
sch_frag.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-12-31 14:35:40 +00:00
sch_generic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-09-01 12:58:02 -07:00
sch_gred.c net: sched: gred: remove NULL check before free table->tab in gred_destroy() 2022-09-01 13:32:26 +02:00
sch_hfsc.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_hhf.c net: sched: remove redundant NULL check in change hook function 2022-09-01 08:06:45 +02:00
sch_htb.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
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: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_mqprio.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_multiq.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_netem.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_pie.c net: sched: remove redundant NULL check in change hook function 2022-09-01 08:06:45 +02:00
sch_plug.c net: sched: remove redundant NULL check in change hook function 2022-09-01 08:06:45 +02:00
sch_prio.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_qfq.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_red.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_sfb.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_sfq.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_skbprio.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_taprio.c net/sched: taprio: allow user input of per-tc max SDU 2022-09-29 18:52:05 -07:00
sch_tbf.c net/sched: use tc_qdisc_stats_dump() in qdisc 2022-09-22 17:34:10 -07:00
sch_teql.c net: sched: delete duplicate cleanup of backlog and qlen 2022-08-25 15:10:17 +02:00