diff options
| author | Lendacky, Thomas <Thomas.Lendacky@amd.com> | 2014-08-29 13:16:50 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-01 20:38:14 -0700 |
| commit | a9a4a2d9d622e3bde41356aa4e2694cee052d002 (patch) | |
| tree | a7b206d5ac94abaf19044a20c24333902cdc2186 /drivers/net/ethernet/amd/xgbe/xgbe-dev.c | |
| parent | e148e1bf6fcdecb19015c63ba8c6c25ed5dc3a2a (diff) | |
amd-xgbe: Check for Tx hardware queue flushing support
The flushing of the Tx hardware queues is only supported at a certain
level of the hardware. Retrieve the current version of the hardware
and use that to determine if flushing is supported.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-dev.c')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c index edaca4496264..e43747a9926f 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c @@ -1633,6 +1633,9 @@ static int xgbe_flush_tx_queues(struct xgbe_prv_data *pdata) { unsigned int i, count; + if (XGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER) < 0x21) + return 0; + for (i = 0; i < pdata->tx_q_count; i++) XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, FTQ, 1); |