iavf: use mutexes for locking of critical sections

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As follow-up to the discussion with Jakub Kicinski about iavf locking
being insufficient [1] convert iavf to use mutexes instead of bitops.
The locking logic is kept as is, just a drop-in replacement of
enum iavf_critical_section_t with separate mutexes.
The only difference is that the mutexes will be destroyed before the
module is unloaded.

[1] https://lwn.net/ml/netdev/20210316150210.00007249%40intel.com/

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Marek Szlosek <marek.szlosek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

...

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Stefan Assmann 2021-08-04 10:22:24 +02:00 • committed by Tony Nguyen

parent 752be29764

commit 5ac49f3c27

3 changed files with 56 additions and 63 deletions

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9

drivers/net/ethernet/intel/iavf/iavf.h

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10

drivers/net/ethernet/intel/iavf/iavf_ethtool.c

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100

drivers/net/ethernet/intel/iavf/iavf_main.c

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