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| author |   Jiri Pirko <jiri@mellanox.com> | 2020-03-28 16:37:43 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-03-30 11:06:49 -0700 |
| commit | 93a129eb8c520b032e1823447b2e1badcc650666 (patch) | |
| tree | 856a1f369cdb6d52dc265833fd83e2d40cc73d5e /include | |
| parent | net: introduce nla_put_bitfield32() helper and use it (diff) | |
| download | linux-dev-93a129eb8c520b032e1823447b2e1badcc650666.tar.xz linux-dev-93a129eb8c520b032e1823447b2e1badcc650666.zip | |
net: sched: expose HW stats types per action used by drivers
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 <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/act_api.h | 2 | ||||
| -rw-r--r-- | include/net/flow_offload.h | 12 | ||||
| -rw-r--r-- | include/net/pkt_cls.h | 5 | ||||
| -rw-r--r-- | include/uapi/linux/pkt_cls.h | 1 |
4 files changed, 18 insertions, 2 deletions
diff --git a/include/net/act_api.h b/include/net/act_api.h index ecdec9d6ead0..c24d7643548e 100644 --- a/include/net/act_api.h +++ b/include/net/act_api.h @@ -42,6 +42,8 @@ struct tc_action { struct tcf_chain __rcu *goto_chain; u32 tcfa_flags; u8 hw_stats; + u8 used_hw_stats; + bool used_hw_stats_valid; }; #define tcf_index common.tcfa_index #define tcf_refcnt common.tcfa_refcnt diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h index ff071eaede17..f66fc6a3020d 100644 --- a/include/net/flow_offload.h +++ b/include/net/flow_offload.h @@ -370,14 +370,24 @@ struct flow_stats { u64 pkts; u64 bytes; u64 lastused; + enum flow_action_hw_stats used_hw_stats; + bool used_hw_stats_valid; }; static inline void flow_stats_update(struct flow_stats *flow_stats, - u64 bytes, u64 pkts, u64 lastused) + u64 bytes, u64 pkts, u64 lastused, + enum flow_action_hw_stats used_hw_stats) { flow_stats->pkts += pkts; flow_stats->bytes += bytes; flow_stats->lastused = max_t(u64, flow_stats->lastused, lastused); + + /* The driver should pass value with a maximum of one bit set. + * Passing FLOW_ACTION_HW_STATS_ANY is invalid. + */ + WARN_ON(used_hw_stats == FLOW_ACTION_HW_STATS_ANY); + flow_stats->used_hw_stats |= used_hw_stats; + flow_stats->used_hw_stats_valid = true; } enum flow_block_command { diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index 41902e10d503..04aa0649f3b0 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -262,7 +262,8 @@ static inline void tcf_exts_put_net(struct tcf_exts *exts) static inline void tcf_exts_stats_update(const struct tcf_exts *exts, - u64 bytes, u64 packets, u64 lastuse) + u64 bytes, u64 packets, u64 lastuse, + u8 used_hw_stats, bool used_hw_stats_valid) { #ifdef CONFIG_NET_CLS_ACT int i; @@ -273,6 +274,8 @@ tcf_exts_stats_update(const struct tcf_exts *exts, struct tc_action *a = exts->actions[i]; tcf_action_stats_update(a, bytes, packets, lastuse, true); + a->used_hw_stats = used_hw_stats; + a->used_hw_stats_valid = used_hw_stats_valid; } preempt_enable(); diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h index 6fcf7307e534..9f06d29cab70 100644 --- a/include/uapi/linux/pkt_cls.h +++ b/include/uapi/linux/pkt_cls.h @@ -18,6 +18,7 @@ enum { TCA_ACT_COOKIE, TCA_ACT_FLAGS, TCA_ACT_HW_STATS, + TCA_ACT_USED_HW_STATS, __TCA_ACT_MAX }; |