diff options
| author | Vlad Buslov <vladbu@nvidia.com> | 2022-06-15 13:43:55 +0300 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-07-11 17:25:14 +0300 |
| commit | b038177636f83bbf87c2b238706474145dd2cd04 (patch) | |
| tree | a6bb5e9804de43eb12800ad61e6918080227164f /net/netfilter/Kconfig | |
| parent | fc54d9065f90dd25063883f404e6ff9a76913e73 (diff) | |
| download | linux-b038177636f83bbf87c2b238706474145dd2cd04.tar.xz | |
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 'net/netfilter/Kconfig')
| -rw-r--r-- | net/netfilter/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index ddc54b6d18ee..df6abbfe0079 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -734,6 +734,15 @@ config NF_FLOW_TABLE To compile it as a module, choose M here. +config NF_FLOW_TABLE_PROCFS + bool "Supply flow table statistics in procfs" + default y + depends on PROC_FS + depends on SYSCTL + help + This option enables for the flow table offload statistics + to be shown in procfs under net/netfilter/nf_flowtable. + config NETFILTER_XTABLES tristate "Netfilter Xtables support (required for ip_tables)" default m if NETFILTER_ADVANCED=n |