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5dbbbd01cb
linux/drivers/net/ethernet/intel
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Dave Ertman 5dbbbd01cb ice: Avoid RTNL lock when re-creating auxiliary device 
If a call to re-create the auxiliary device happens in a context that has
already taken the RTNL lock, then the call flow that recreates auxiliary
device can hang if there is another attempt to claim the RTNL lock by the
auxiliary driver.

To avoid this, any call to re-create auxiliary devices that comes from
an source that is holding the RTNL lock (e.g. netdev notifier when
interface exits a bond) should execute in a separate thread.  To
accomplish this, add a flag to the PF that will be evaluated in the
service task and dealt with there.

Fixes: f9f5301e7e ("ice: Register auxiliary device to provide RDMA")
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Reviewed-by: Jonathan Toppins <jtoppins@redhat.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-02-10 08:47:27 -08:00
..
e1000 e1000: switch to napi_build_skb() 2021-12-28 09:42:25 -08:00
e1000e e1000e: Handshake with CSME starts from ADL platforms 2022-02-01 08:59:51 -08:00
fm10k fm10k: Fix syntax errors in comments 2021-12-21 09:17:47 -08:00
i40e i40e: Fix reset path while removing the driver 2022-01-31 14:15:07 -08:00
iavf Updates for the interrupt subsystem: 2022-01-13 08:53:45 -08:00
ice ice: Avoid RTNL lock when re-creating auxiliary device 2022-02-10 08:47:27 -08:00
igb Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-12-31 14:35:40 +00:00
igbvf igbvf: Refactor trace 2021-12-21 09:17:47 -08:00
igc Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-12-31 14:35:40 +00:00
ixgb ethtool: extend ringparam setting/getting API with rx_buf_len 2021-11-22 12:31:49 +00:00
ixgbe Updates for the interrupt subsystem: 2022-01-13 08:53:45 -08:00
ixgbevf ixgbevf: Require large buffers for build_skb on 82599VF 2022-02-04 10:23:21 +00:00
e100.c ethtool: extend ringparam setting/getting API with rx_buf_len 2021-11-22 12:31:49 +00:00
Kconfig ice: support crosstimestamping on E822 devices if supported 2021-12-21 09:11:40 -08:00
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