dpaa2-mac: export MAC counters even when in TYPE_FIXED

If the network interface object is connected to a MAC of TYPE_FIXED, the
link status management is handled exclusively by the firmware. This does
not mean that the driver cannot access the MAC counters and export them
in ethtool.

For this to happen, we open the attached dpmac device and keep a pointer
to it in priv->mac. Because of this, all the checks in the driver of the
following form 'if (priv->mac)' have to be updated to actually check
the dpmac attribute and not rely on the presence of a non-NULL value.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
index d236b8695c39..c3d456c45102 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
@@ -693,6 +693,19 @@ static inline unsigned int dpaa2_eth_rx_head_room(struct dpaa2_eth_priv *priv)
 	return priv->tx_data_offset - DPAA2_ETH_RX_HWA_SIZE;
 }
 
+static inline bool dpaa2_eth_is_type_phy(struct dpaa2_eth_priv *priv)
+{
+	if (priv->mac && priv->mac->attr.link_type == DPMAC_LINK_TYPE_PHY)
+		return true;
+
+	return false;
+}
+
+static inline bool dpaa2_eth_has_mac(struct dpaa2_eth_priv *priv)
+{
+	return priv->mac ? true : false;
+}
+
 int dpaa2_eth_set_hash(struct net_device *net_dev, u64 flags);
 int dpaa2_eth_set_cls(struct net_device *net_dev, u64 key);
 int dpaa2_eth_cls_key_size(u64 key);