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 /Documentation/netlink/specs | |
| parent | net: phy: Don't register LEDs for genphy (diff) | |
| download | wireguard-linux-2677010e7793451c20d895c477c4dc76f6e6a10e.tar.xz wireguard-linux-2677010e7793451c20d895c477c4dc76f6e6a10e.zip | |
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 'Documentation/netlink/specs')
| -rw-r--r-- | Documentation/netlink/specs/netdev.yaml | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index ce4cfec82100..85d0ea6ac426 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -283,6 +283,14 @@ attribute-sets: doc: The timeout, in nanoseconds, of how long to suspend irq processing, if event polling finds events type: uint + - + name: threaded + doc: Whether the NAPI is configured to operate in threaded polling + mode. If this is set to 1 then the NAPI context operates in + threaded polling mode. + type: uint + checks: + max: 1 - name: xsk-info attributes: [] @@ -694,6 +702,7 @@ operations: - defer-hard-irqs - gro-flush-timeout - irq-suspend-timeout + - threaded dump: request: attributes: @@ -746,6 +755,7 @@ operations: - defer-hard-irqs - gro-flush-timeout - irq-suspend-timeout + - threaded - name: bind-tx doc: Bind dmabuf to netdev for TX |