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path: root/drivers/net/ixgbe/ixgbe_dcb_82599.c
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Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb_82599.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_dcb_82599.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb_82599.c b/drivers/net/ixgbe/ixgbe_dcb_82599.c
index 05f224715073..374e1f74d0f5 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_82599.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_82599.c
@@ -251,19 +251,17 @@ s32 ixgbe_dcb_config_pfc_82599(struct ixgbe_hw *hw,
/* Configure PFC Tx thresholds per TC */
for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
- if (dcb_config->rx_pba_cfg == pba_equal)
- rx_pba_size = IXGBE_RXPBSIZE_64KB;
- else
- rx_pba_size = (i < 4) ? IXGBE_RXPBSIZE_80KB
- : IXGBE_RXPBSIZE_48KB;
+ rx_pba_size = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
+ rx_pba_size >>= IXGBE_RXPBSIZE_SHIFT;
+
+ reg = (rx_pba_size - hw->fc.low_water) << 10;
- reg = ((rx_pba_size >> 5) & 0xFFE0);
if (dcb_config->tc_config[i].dcb_pfc == pfc_enabled_full ||
dcb_config->tc_config[i].dcb_pfc == pfc_enabled_tx)
reg |= IXGBE_FCRTL_XONE;
IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), reg);
- reg = ((rx_pba_size >> 2) & 0xFFE0);
+ reg = (rx_pba_size - hw->fc.high_water) << 10;
if (dcb_config->tc_config[i].dcb_pfc == pfc_enabled_full ||
dcb_config->tc_config[i].dcb_pfc == pfc_enabled_tx)
reg |= IXGBE_FCRTH_FCEN;