linux/include/net/act_api.h, branch v5.11

net/sched: sch_frag: add generic packet fragment support.

2020-11-27T22:36:02Z

Currently kernel tc subsystem can do conntrack in cat_ct. But when several fragment packets go through the act_ct, function tcf_ct_handle_fragments will defrag the packets to a big one. But the last action will redirect mirred to a device which maybe lead the reassembly big packet over the mtu of target device. This patch add support for a xmit hook to mirred, that gets executed before xmiting the packet. Then, when act_ct gets loaded, it configs that hook. The frag xmit hook maybe reused by other modules. Signed-off-by: wenxu Acked-by: Cong Wang Acked-by: Jamal Hadi Salim Signed-off-by: Jakub Kicinski

net_sched: defer tcf_idr_insert() in tcf_action_init_1()

2020-09-25T02:46:21Z

All TC actions call tcf_idr_insert() for new action at the end of their ->init(), so we can actually move it to a central place in tcf_action_init_1(). And once the action is inserted into the global IDR, other parallel process could free it immediately as its refcnt is still 1, so we can not fail after this, we need to move it after the goto action validation to avoid handling the failure case after insertion. This is found during code review, is not directly triggered by syzbot. And this prepares for the next patch. Cc: Vlad Buslov Cc: Jamal Hadi Salim Cc: Jiri Pirko Signed-off-by: Cong Wang Signed-off-by: David S. Miller

net: qos offload add flow status with dropped count

2020-06-19T19:53:30Z

This patch adds a drop frames counter to tc flower offloading. Reporting h/w dropped frames is necessary for some actions. Some actions like police action and the coming introduced stream gate action would produce dropped frames which is necessary for user. Status update shows how many filtered packets increasing and how many dropped in those packets. v2: Changes - Update commit comments suggest by Jiri Pirko. Signed-off-by: Po Liu Reviewed-by: Simon Horman Reviewed-by: Vlad Buslov Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-05-24T20:47:27Z

The MSCC bug fix in 'net' had to be slightly adjusted because the register accesses are done slightly differently in net-next. Signed-off-by: David S. Miller

net sched: fix reporting the first-time use timestamp

2020-05-19T00:32:19Z

When a new action is installed, firstuse field of 'tcf_t' is explicitly set to 0. Value of zero means "new action, not yet used"; as a packet hits the action, 'firstuse' is stamped with the current jiffies value. tcf_tm_dump() should return 0 for firstuse if action has not yet been hit. Fixes: 48d8ee1694dd ("net sched actions: aggregate dumping of actions timeinfo") Cc: Jamal Hadi Salim Signed-off-by: Roman Mashak Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller

net: sched: implement terse dump support in act

2020-05-15T17:23:11Z

Extend tcf_action_dump() with boolean argument 'terse' that is used to request terse-mode action dump. In terse mode only essential data needed to identify particular action (action kind, cookie, etc.) and its stats is put to resulting skb and everything else is omitted. Implement tcf_exts_terse_dump() helper in cls API that is intended to be used to request terse dump of all exts (actions) attached to the filter. Signed-off-by: Vlad Buslov Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

net: sched: expose HW stats types per action used by drivers

2020-03-30T18:06:49Z

It may be up to the driver (in case ANY HW stats is passed) to select which type of HW stats he is going to use. Add an infrastructure to expose this information to user. $ tc filter add dev enp3s0np1 ingress proto ip handle 1 pref 1 flower dst_ip 192.168.1.1 action drop $ tc -s filter show dev enp3s0np1 ingress filter protocol ip pref 1 flower chain 0 filter protocol ip pref 1 flower chain 0 handle 0x1 eth_type ipv4 dst_ip 192.168.1.1 in_hw in_hw_count 2 action order 1: gact action drop random type none pass val 0 index 1 ref 1 bind 1 installed 10 sec used 10 sec Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 used_hw_stats immediate <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

net: sched: rename more stats_types

2020-03-24T03:54:23Z

Commit 53eca1f3479f ("net: rename flow_action_hw_stats_types* -> flow_action_hw_stats*") renamed just the flow action types and helpers. For consistency rename variables, enums, struct members and UAPI too (note that this UAPI was not in any official release, yet). Signed-off-by: Jakub Kicinski Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller

sched: act: allow user to specify type of HW stats for a filter

2020-03-09T04:07:48Z

Currently, user who is adding an action expects HW to report stats, however it does not have exact expectations about the stats types. That is aligned with TCA_ACT_HW_STATS_TYPE_ANY. Allow user to specify the type of HW stats for an action and require it. Pass the information down to flow_offload layer. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

net/sched: actions: remove unused 'order'

2019-11-12T20:11:22Z

after commit 4097e9d250fb ("net: sched: don't use tc_action->order during action dump"), 'act->order' is initialized but then it's no more read, so we can just remove this member of struct tc_action. CC: Ivan Vecera Signed-off-by: Davide Caratti Acked-by: Jiri Pirko Reviewed-by: Ivan Vecera Signed-off-by: David S. Miller