diff options
| author | Jie Wang <wangjie125@huawei.com> | 2024-08-13 22:10:22 +0800 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-08-15 13:07:08 +0200 |
| commit | be5e816d00a506719e9dbb1a9c861c5ced30a109 (patch) | |
| tree | df41efa6e0d8c463f6a1231c429dc315ef3007e2 /tools/perf/scripts/python/flamegraph.py | |
| parent | 30545e17eac1f50c5ef49644daf6af205100a965 (diff) | |
net: hns3: fix a deadlock problem when config TC during resetting
When config TC during the reset process, may cause a deadlock, the flow is
as below:
pf reset start
│
▼
......
setup tc │
│ ▼
▼ DOWN: napi_disable()
napi_disable()(skip) │
│ │
▼ ▼
...... ......
│ │
▼ │
napi_enable() │
▼
UINIT: netif_napi_del()
│
▼
......
│
▼
INIT: netif_napi_add()
│
▼
...... global reset start
│ │
▼ ▼
UP: napi_enable()(skip) ......
│ │
▼ ▼
...... napi_disable()
In reset process, the driver will DOWN the port and then UINIT, in this
case, the setup tc process will UP the port before UINIT, so cause the
problem. Adds a DOWN process in UINIT to fix it.
Fixes: bb6b94a896d4 ("net: hns3: Add reset interface implementation in client")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions