5 files changed, 61 insertions, 2 deletions

diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index d58dbc2c4270..f6b00c68451b 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -742,9 +742,14 @@ void enetc_get_si_caps(struct enetc_si *si)
 	si->num_rss = 0;
 	val = enetc_rd(hw, ENETC_SIPCAPR0);
 	if (val & ENETC_SIPCAPR0_RSS) {
-		val = enetc_rd(hw, ENETC_SIRSSCAPR);
-		si->num_rss = ENETC_SIRSSCAPR_GET_NUM_RSS(val);
+		u32 rss;
+
+		rss = enetc_rd(hw, ENETC_SIRSSCAPR);
+		si->num_rss = ENETC_SIRSSCAPR_GET_NUM_RSS(rss);
 	}
+
+	if (val & ENETC_SIPCAPR0_QBV)
+		si->hw_features |= ENETC_SI_F_QBV;
 }
 
 static int enetc_dma_alloc_bdr(struct enetc_bdr *r, size_t bd_size)
@@ -1314,8 +1319,12 @@ static void enetc_disable_interrupts(struct enetc_ndev_priv *priv)
 
 static void adjust_link(struct net_device *ndev)
 {
+	struct enetc_ndev_priv *priv = netdev_priv(ndev);
 	struct phy_device *phydev = ndev->phydev;
 
+	if (priv->active_offloads & ENETC_F_QBV)
+		enetc_sched_speed_set(ndev);
+
 	phy_print_status(phydev);
 }
 
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h
index 8ca2f97050c8..89f23156f330 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc.h
@@ -118,6 +118,8 @@ enum enetc_errata {
 	ENETC_ERR_UCMCSWP	= BIT(2),
 };
 
+#define ENETC_SI_F_QBV BIT(0)
+
 /* PCI IEP device data */
 struct enetc_si {
 	struct pci_dev *pdev;
@@ -133,6 +135,7 @@ struct enetc_si {
 	int num_fs_entries;
 	int num_rss; /* number of RSS buckets */
 	unsigned short pad;
+	int hw_features;
 };
 
 #define ENETC_SI_ALIGN	32
@@ -173,6 +176,7 @@ struct enetc_cls_rule {
 enum enetc_active_offloads {
 	ENETC_F_RX_TSTAMP	= BIT(0),
 	ENETC_F_TX_TSTAMP	= BIT(1),
+	ENETC_F_QBV             = BIT(2),
 };
 
 struct enetc_ndev_priv {
@@ -188,6 +192,8 @@ struct enetc_ndev_priv {
 	u16 msg_enable;
 	int active_offloads;
 
+	u32 speed; /* store speed for compare update pspeed */
+
 	struct enetc_bdr *tx_ring[16];
 	struct enetc_bdr *rx_ring[16];
 
@@ -248,6 +254,8 @@ int enetc_send_cmd(struct enetc_si *si, struct enetc_cbd *cbd);
 
 #ifdef CONFIG_FSL_ENETC_QOS
 int enetc_setup_tc_taprio(struct net_device *ndev, void *type_data);
+void enetc_sched_speed_set(struct net_device *ndev);
 #else
 #define enetc_setup_tc_taprio(ndev, type_data) -EOPNOTSUPP
+#define enetc_sched_speed_set(ndev) (void)0
 #endif
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_hw.h b/drivers/net/ethernet/freescale/enetc/enetc_hw.h
index df6b35dc3534..924ddb6d358a 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_hw.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc_hw.h
@@ -149,6 +149,11 @@ enum enetc_bdr_type {TX, RX};
 #define ENETC_PORT_BASE		0x10000
 #define ENETC_PMR		0x0000
 #define ENETC_PMR_EN	GENMASK(18, 16)
+#define ENETC_PMR_PSPEED_MASK GENMASK(11, 8)
+#define ENETC_PMR_PSPEED_10M	0
+#define ENETC_PMR_PSPEED_100M	BIT(8)
+#define ENETC_PMR_PSPEED_1000M	BIT(9)
+#define ENETC_PMR_PSPEED_2500M	BIT(10)
 #define ENETC_PSR		0x0004 /* RO */
 #define ENETC_PSIPMR		0x0018
 #define ENETC_PSIPMR_SET_UP(n)	BIT(n) /* n = SI index */
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
index 7da79b816416..e7482d483b28 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -742,6 +742,9 @@ static void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev,
 
 	ndev->priv_flags |= IFF_UNICAST_FLT;
 
+	if (si->hw_features & ENETC_SI_F_QBV)
+		priv->active_offloads |= ENETC_F_QBV;
+
 	/* pick up primary MAC address from SI */
 	enetc_get_primary_mac_addr(&si->hw, ndev->dev_addr);
 }
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_qos.c b/drivers/net/ethernet/freescale/enetc/enetc_qos.c
index 84c2ab98fae9..66a3da61ca16 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_qos.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_qos.c
@@ -11,6 +11,40 @@ static u16 enetc_get_max_gcl_len(struct enetc_hw *hw)
 		& ENETC_QBV_MAX_GCL_LEN_MASK;
 }
 
+void enetc_sched_speed_set(struct net_device *ndev)
+{
+	struct enetc_ndev_priv *priv = netdev_priv(ndev);
+	struct phy_device *phydev = ndev->phydev;
+	u32 old_speed = priv->speed;
+	u32 speed, pspeed;
+
+	if (phydev->speed == old_speed)
+		return;
+
+	speed = phydev->speed;
+	switch (speed) {
+	case SPEED_1000:
+		pspeed = ENETC_PMR_PSPEED_1000M;
+		break;
+	case SPEED_2500:
+		pspeed = ENETC_PMR_PSPEED_2500M;
+		break;
+	case SPEED_100:
+		pspeed = ENETC_PMR_PSPEED_100M;
+		break;
+	case SPEED_10:
+	default:
+		pspeed = ENETC_PMR_PSPEED_10M;
+		netdev_err(ndev, "Qbv PSPEED set speed link down.\n");
+	}
+
+	priv->speed = speed;
+	enetc_port_wr(&priv->si->hw, ENETC_PMR,
+		      (enetc_port_rd(&priv->si->hw, ENETC_PMR)
+		      & (~ENETC_PMR_PSPEED_MASK))
+		      | pspeed);
+}
+
 static int enetc_setup_taprio(struct net_device *ndev,
 			      struct tc_taprio_qopt_offload *admin_conf)
 {