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| author |  Aleksandr Loktionov <aleksandr.loktionov@intel.com>
| 2024-03-13 10:44:00 +0100 |
|---|---|---|
| committer |  Tony Nguyen <anthony.l.nguyen@intel.com>
| 2024-03-26 08:56:06 -0700 |
| commit | eb58c598ce45b7e787568fe27016260417c3d807 (patch) | |
| tree | 35fc598ea725058315a7c06cd5bc650a92eee7df /drivers/net/ethernet/intel/i40e | |
| parent | i40e: Enforce software interrupt during busy-poll exit (diff) | |
| download | linux-eb58c598ce45b7e787568fe27016260417c3d807.tar.gz linux-eb58c598ce45b7e787568fe27016260417c3d807.tar.bz2 linux-eb58c598ce45b7e787568fe27016260417c3d807.zip | |
i40e: fix i40e_count_filters() to count only active/new filters
The bug usually affects untrusted VFs, because they are limited to 18 MACs,
it affects them badly, not letting to create MAC all filters.
Not stable to reproduce, it happens when VF user creates MAC filters
when other MACVLAN operations are happened in parallel.
But consequence is that VF can't receive desired traffic.
Fix counter to be bumped only for new or active filters.
Fixes: 621650cabee5 ("i40e: Refactoring VF MAC filters counting to make more reliable")
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 6576a0081093..48b9ddb2b1b3 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -1253,8 +1253,11 @@ int i40e_count_filters(struct i40e_vsi *vsi) int bkt; int cnt = 0; - hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) - ++cnt; + hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) { + if (f->state == I40E_FILTER_NEW || + f->state == I40E_FILTER_ACTIVE) + ++cnt; + } return cnt; } |