diff options
| author | Radoslaw Tyl <radoslawx.tyl@intel.com> | 2018-09-24 09:24:20 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-24 08:23:04 +0100 |
| commit | 2778c84d3754966ee3da5f1eef8a4717fbfface2 (patch) | |
| tree | 7740cb6304096a79e6811166012a70dd706cf83c /drivers/net/ethernet/intel | |
| parent | 01b71317fedfbf6a6c56a77713e3ba28b1c13e00 (diff) | |
ixgbe: Fix crash with VFs and flow director on interface flap
[ Upstream commit 5d826d209164b0752c883607be4cdbbcf7cab494 ]
This patch fix crash when we have restore flow director filters after reset
adapter. In ixgbe_fdir_filter_restore() filter->action is outside of the
rx_ring array, as it has a VF identifier in the upper 32 bits.
Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index d1472727ef88..4801d96c4fa9 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -5129,6 +5129,7 @@ static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter) struct ixgbe_hw *hw = &adapter->hw; struct hlist_node *node2; struct ixgbe_fdir_filter *filter; + u64 action; spin_lock(&adapter->fdir_perfect_lock); @@ -5137,12 +5138,17 @@ static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter) hlist_for_each_entry_safe(filter, node2, &adapter->fdir_filter_list, fdir_node) { + action = filter->action; + if (action != IXGBE_FDIR_DROP_QUEUE && action != 0) + action = + (action >> ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF) - 1; + ixgbe_fdir_write_perfect_filter_82599(hw, &filter->filter, filter->sw_idx, - (filter->action == IXGBE_FDIR_DROP_QUEUE) ? + (action == IXGBE_FDIR_DROP_QUEUE) ? IXGBE_FDIR_DROP_QUEUE : - adapter->rx_ring[filter->action]->reg_idx); + adapter->rx_ring[action]->reg_idx); } spin_unlock(&adapter->fdir_perfect_lock); |