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authorRadoslaw Tyl <radoslawx.tyl@intel.com>2025-02-17 10:06:36 +0100
committerTony Nguyen <anthony.l.nguyen@intel.com>2025-07-03 09:39:04 -0700
commit1a3ebc59f7175c9b41e488fe6e4c47b85fcbe275 (patch)
treeddedfe5210a381e556c3227adbd5835a84127974
parentb11aa9614df095ee6f15640873dfa6aaf51dd7ef (diff)
ixgbe: turn off MDD while modifying SRRCTL
Modifying SRRCTL register can generate MDD event. Turn MDD off during SRRCTL register write to prevent generating MDD. Fix RCT in ixgbe_set_rx_drop_en(). Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index f1c51ddbaf9e..4f2d7f6e3faa 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -4104,8 +4104,12 @@ void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter)
static void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter)
#endif
{
- int i;
bool pfc_en = adapter->dcb_cfg.pfc_mode_enable;
+ struct ixgbe_hw *hw = &adapter->hw;
+ int i;
+
+ if (hw->mac.ops.disable_mdd)
+ hw->mac.ops.disable_mdd(hw);
if (adapter->ixgbe_ieee_pfc)
pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en);
@@ -4127,6 +4131,9 @@ static void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter)
for (i = 0; i < adapter->num_rx_queues; i++)
ixgbe_disable_rx_drop(adapter, adapter->rx_ring[i]);
}
+
+ if (hw->mac.ops.enable_mdd)
+ hw->mac.ops.enable_mdd(hw);
}
#define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2