diff options
| author | Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> | 2009-05-17 12:35:16 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-05-18 04:04:13 (GMT) |
| commit | 264857b8fe8a16fc95f12e898951fc6bd4bdaa7a (patch) | |
| tree | efb090175b49f72170555eab18cdcf1156ed2a4a /drivers/net/ixgbe/ixgbe_dcb_82598.c | |
| parent | 70b77628d8d943b27cc0f72002b5884028aee38c (diff) | |
| download | linux-fsl-qoriq-264857b8fe8a16fc95f12e898951fc6bd4bdaa7a.tar.xz | |
ixgbe: Allow link flow control in DCB mode for 82599 adapters
82599 supports using either link flow control or priority flow control when
in DCB mode. The dcbnl interface already supports sending down
configurations through rtnetlink that can enable LFC when DCB is enabled,
so the driver should take advantage of this.
82598 does not support using LFC when DCB is enabled, so explicitly disable
it when we're in DCB mode. This means we always run in PFC mode when DCB
is enabled.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb_82598.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_dcb_82598.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb_82598.c b/drivers/net/ixgbe/ixgbe_dcb_82598.c index 6220627..f302638 100644 --- a/drivers/net/ixgbe/ixgbe_dcb_82598.c +++ b/drivers/net/ixgbe/ixgbe_dcb_82598.c @@ -294,6 +294,9 @@ s32 ixgbe_dcb_config_pfc_82598(struct ixgbe_hw *hw, u32 reg, rx_pba_size; u8 i; + if (!dcb_config->pfc_mode_enable) + goto out; + /* Enable Transmit Priority Flow Control */ reg = IXGBE_READ_REG(hw, IXGBE_RMCS); reg &= ~IXGBE_RMCS_TFCE_802_3X; @@ -341,6 +344,7 @@ s32 ixgbe_dcb_config_pfc_82598(struct ixgbe_hw *hw, /* Configure flow control refresh threshold value */ IXGBE_WRITE_REG(hw, IXGBE_FCRTV, 0x3400); +out: return 0; } |