linux/net/sched
Jiri Pirko 7960d1daf2 net: sched: use block index as a handle instead of qdisc when block is shared
As the tcm_ifindex with value TCM_IFINDEX_MAGIC_BLOCK is invalid ifindex,
use it to indicate that we work with block, instead of qdisc.
So if tcm_ifindex is set to TCM_IFINDEX_MAGIC_BLOCK, tcm_parent is used
to carry block_index.

If the block is set to be shared between at least 2 qdiscs, it is
forbidden to use the qdisc handle to add/delete filters. In that case,
userspace has to pass block_index.

Also, for dump of the filters, in case the block is shared in between at
least 2 qdiscs, the each filter is dumped with tcm_ifindex value
TCM_IFINDEX_MAGIC_BLOCK and tcm_parent set to block_index. That gives
the user clear indication, that the filter belongs to a shared block
and not only to one qdisc under which it is dumped.

Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17 14:53:57 -05:00
..
act_api.c net_sched: remove unused parameter from act cleanup ops 2017-12-05 18:07:58 -05:00
act_bpf.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_connmark.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_csum.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_gact.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
act_ife.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_ipt.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_meta_mark.c net: remove duplicate includes 2017-12-13 13:18:46 -05:00
act_meta_skbprio.c net sched actions: change IFE modules alias names 2017-10-12 22:13:20 -07:00
act_meta_skbtcindex.c net: remove duplicate includes 2017-12-13 13:18:46 -05:00
act_mirred.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-09 10:37:00 -05:00
act_nat.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_pedit.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_police.c net: sch: api: add extack support in qdisc_get_rtab 2017-12-21 12:32:50 -05:00
act_sample.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_simple.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_skbedit.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_skbmod.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_tunnel_key.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
act_vlan.c net_sched: switch to exit_batch for action pernet ops 2017-12-13 13:58:41 -05:00
cls_api.c net: sched: use block index as a handle instead of qdisc when block is shared 2018-01-17 14:53:57 -05:00
cls_basic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_bpf.c net: sched: keep track of offloaded filters and check tc offload feature 2018-01-17 14:53:57 -05:00
cls_cgroup.c cls_cgroup: use tcf_exts_get_net() before call_rcu() 2017-11-09 10:03:09 +09:00
cls_flow.c net: sched: introduce block mechanism to handle netif_keep_dst calls 2018-01-17 14:53:56 -05:00
cls_flower.c net: sched: keep track of offloaded filters and check tc offload feature 2018-01-17 14:53:57 -05:00
cls_fw.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_matchall.c net: sched: keep track of offloaded filters and check tc offload feature 2018-01-17 14:53:57 -05:00
cls_route.c net: sched: introduce block mechanism to handle netif_keep_dst calls 2018-01-17 14:53:56 -05:00
cls_rsvp6.c
cls_rsvp.c
cls_rsvp.h cls_rsvp: use tcf_exts_get_net() before call_rcu() 2017-11-09 10:03:10 +09:00
cls_tcindex.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-10 10:00:18 +09:00
cls_u32.c net: sched: keep track of offloaded filters and check tc offload feature 2018-01-17 14:53:57 -05:00
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 net: sched: ematch: obtain net pointer from blocks 2017-10-16 21:00:40 +01:00
Kconfig net/sched: Introduce Credit Based Shaper (CBS) qdisc 2017-10-27 09:48:02 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
sch_api.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-17 00:10:42 -05:00
sch_atm.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
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: sch: sch_cbq: add extack support 2017-12-21 12:32:51 -05:00
sch_cbs.c net: sch: sch_cbs: add extack support 2017-12-21 12:32:51 -05:00
sch_choke.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_codel.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_drr.c net: sch: sch_drr: add extack support 2017-12-21 12:32:51 -05:00
sch_dsmark.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_fifo.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_fq_codel.c net: sch: api: add extack support in tcf_block_get 2017-12-21 12:32:51 -05:00
sch_fq.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_generic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-17 00:10:42 -05:00
sch_gred.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_hfsc.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_hhf.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_htb.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_ingress.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-01-17 00:10:42 -05:00
sch_mq.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_mqprio.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_multiq.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_netem.c net: sched: sch: add extack for graft callback 2017-12-21 12:32:50 -05:00
sch_pie.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_plug.c net: sched: sch: add extack for change qdisc ops 2017-12-21 12:32:50 -05:00
sch_prio.c net: sch: prio: Add offload ability to PRIO qdisc 2018-01-14 12:21:11 -05:00
sch_qfq.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_red.c net: sched: red: don't reset the backlog on every stat dump 2018-01-17 14:29:32 -05:00
sch_sfb.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_sfq.c net: sch: api: add extack support in tcf_block_get 2017-12-21 12:32:51 -05:00
sch_tbf.c net: sch: api: add extack support in qdisc_create_dflt 2017-12-21 12:32:51 -05:00
sch_teql.c net: sched: sch: add extack for init callback 2017-12-21 12:32:50 -05:00