diff options
| author | Samiullah Khawaja <skhawaja@google.com> | 2025-07-10 21:12:03 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-14 18:02:37 -0700 |
| commit | 2677010e7793451c20d895c477c4dc76f6e6a10e (patch) | |
| tree | b01196cdc5e5b9804e2a073f1ec4abff855c0665 /net/core/dev.h | |
| parent | a44312d58e78cfe8f0e72435101b7a9187b21d46 (diff) | |
Add support to set NAPI threaded for individual NAPI
A net device has a threaded sysctl that can be used to enable threaded
NAPI polling on all of the NAPI contexts under that device. Allow
enabling threaded NAPI polling at individual NAPI level using netlink.
Extend the netlink operation `napi-set` and allow setting the threaded
attribute of a NAPI. This will enable the threaded polling on a NAPI
context.
Add a test in `nl_netdev.py` that verifies various cases of threaded
NAPI being set at NAPI and at device level.
Tested
./tools/testing/selftests/net/nl_netdev.py
TAP version 13
1..7
ok 1 nl_netdev.empty_check
ok 2 nl_netdev.lo_check
ok 3 nl_netdev.page_pool_check
ok 4 nl_netdev.napi_list_check
ok 5 nl_netdev.dev_set_threaded
ok 6 nl_netdev.napi_set_threaded
ok 7 nl_netdev.nsim_rxq_reset_down
# Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Samiullah Khawaja <skhawaja@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20250710211203.3979655-1-skhawaja@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core/dev.h')
| -rw-r--r-- | net/core/dev.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/core/dev.h b/net/core/dev.h index e93f36b7ddf3..a603387fb566 100644 --- a/net/core/dev.h +++ b/net/core/dev.h @@ -315,6 +315,13 @@ static inline void napi_set_irq_suspend_timeout(struct napi_struct *n, WRITE_ONCE(n->irq_suspend_timeout, timeout); } +static inline bool napi_get_threaded(struct napi_struct *n) +{ + return test_bit(NAPI_STATE_THREADED, &n->state); +} + +int napi_set_threaded(struct napi_struct *n, bool threaded); + int rps_cpumask_housekeeping(struct cpumask *mask); #if defined(CONFIG_DEBUG_NET) && defined(CONFIG_BPF_SYSCALL) |