diff options
| author | Jose Abreu <jose.abreu@synopsys.com> | 2019-01-09 12:05:58 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-12 02:35:06 +0300 |
| commit | 0650d4017f4d2eee67230a02285a7ae5204240c2 (patch) | |
| tree | ad26020d5c0dadd0a810f7fe18f2941cae80ae63 /drivers/net | |
| parent | fcc509eb10ff4794641e6ad3082118287a750d0a (diff) | |
| download | linux-0650d4017f4d2eee67230a02285a7ae5204240c2.tar.xz | |
net: stmmac: Check if CBS is supported before configuring
Check if CBS is currently supported before trying to configure it in HW.
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c index 531294f4978b..58ea18af9813 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c @@ -301,6 +301,8 @@ static int tc_setup_cbs(struct stmmac_priv *priv, /* Queue 0 is not AVB capable */ if (queue <= 0 || queue >= tx_queues_count) return -EINVAL; + if (!priv->dma_cap.av) + return -EOPNOTSUPP; if (priv->speed != SPEED_100 && priv->speed != SPEED_1000) return -EOPNOTSUPP; |