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| author |   Vlad Buslov <vladbu@nvidia.com> | 2022-06-15 12:43:55 +0200 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2022-07-11 16:25:14 +0200 |
| commit | b038177636f83bbf87c2b238706474145dd2cd04 (patch) | |
| tree | a6bb5e9804de43eb12800ad61e6918080227164f /include/net/net_namespace.h | |
| parent | net/sched: act_ct: set 'net' pointer when creating new nf_flow_table (diff) | |
| download | linux-dev-b038177636f83bbf87c2b238706474145dd2cd04.tar.xz linux-dev-b038177636f83bbf87c2b238706474145dd2cd04.zip | |
netfilter: nf_flow_table: count pending offload workqueue tasks
To improve hardware offload debuggability count pending 'add', 'del' and
'stats' flow_table offload workqueue tasks. Counters are incremented before
scheduling new task and decremented when workqueue handler finishes
executing. These counters allow user to diagnose congestion on hardware
offload workqueues that can happen when either CPU is starved and workqueue
jobs are executed at lower rate than new ones are added or when
hardware/driver can't keep up with the rate.
Implement the described counters as percpu counters inside new struct
netns_ft which is stored inside struct net. Expose them via new procfs file
'/proc/net/stats/nf_flowtable' that is similar to existing 'nf_conntrack'
file.
Signed-off-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/net_namespace.h')
| -rw-r--r-- | include/net/net_namespace.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 20a2992901c2..8c3587d5c308 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -26,6 +26,9 @@ #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) #include <net/netns/conntrack.h> #endif +#if IS_ENABLED(CONFIG_NF_FLOW_TABLE) +#include <net/netns/flow_table.h> +#endif #include <net/netns/nftables.h> #include <net/netns/xfrm.h> #include <net/netns/mpls.h> @@ -142,6 +145,9 @@ struct net { #if defined(CONFIG_NF_TABLES) || defined(CONFIG_NF_TABLES_MODULE) struct netns_nftables nft; #endif +#if IS_ENABLED(CONFIG_NF_FLOW_TABLE) + struct netns_ft ft; +#endif #endif #ifdef CONFIG_WEXT_CORE struct sk_buff_head wext_nlevents; |