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net: bcmasp: Add support for PHY interrupts

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Hook up the phy interrupts for internal phys to reduce mdio traffic
and improve responsiveness of link changes.

Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Justin Chen 2024-02-28 14:54:00 -08:00 committed by David S. Miller
parent 4688f4f41c
commit cc7f105e76
3 changed files with 26 additions and 0 deletions
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17
drivers/net/ethernet/broadcom/asp2/bcmasp.c
View file

@ -31,6 +31,20 @@ static void _intr2_mask_set(struct bcmasp_priv *priv, u32 mask)
priv->irq_mask |= mask;
}
void bcmasp_enable_phy_irq(struct bcmasp_intf *intf, int en)
{
struct bcmasp_priv *priv = intf->parent;
/* Only supported with internal phys */
if (!intf->internal_phy)
return;
if (en)
_intr2_mask_clear(priv, ASP_INTR2_PHY_EVENT(intf->channel));
else
_intr2_mask_set(priv, ASP_INTR2_PHY_EVENT(intf->channel));
}
void bcmasp_enable_tx_irq(struct bcmasp_intf *intf, int en)
{
struct bcmasp_priv *priv = intf->parent;
@ -79,6 +93,9 @@ static void bcmasp_intr2_handling(struct bcmasp_intf *intf, u32 status)
__napi_schedule_irqoff(&intf->tx_napi);
}
}
if (status & ASP_INTR2_PHY_EVENT(intf->channel))
phy_mac_interrupt(intf->ndev->phydev);
}
static irqreturn_t bcmasp_isr(int irq, void *data)

4
drivers/net/ethernet/broadcom/asp2/bcmasp.h
View file

@ -19,6 +19,8 @@
#define ASP_INTR2_TX_DESC(intr) BIT((intr) + 14)
#define ASP_INTR2_UMC0_WAKE BIT(22)
#define ASP_INTR2_UMC1_WAKE BIT(28)
#define ASP_INTR2_PHY_EVENT(intr) ((intr) ? BIT(30) | BIT(31) : \
BIT(24) | BIT(25))
#define ASP_WAKEUP_INTR2_OFFSET 0x1200
#define ASP_WAKEUP_INTR2_STATUS 0x0
@ -556,6 +558,8 @@ void bcmasp_enable_tx_irq(struct bcmasp_intf *intf, int en);
void bcmasp_enable_rx_irq(struct bcmasp_intf *intf, int en);
void bcmasp_enable_phy_irq(struct bcmasp_intf *intf, int en);
void bcmasp_flush_rx_port(struct bcmasp_intf *intf);
extern const struct ethtool_ops bcmasp_ethtool_ops;

5
drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c
View file

@ -382,6 +382,7 @@ static void bcmasp_netif_start(struct net_device *dev)
bcmasp_enable_rx_irq(intf, 1);
bcmasp_enable_tx_irq(intf, 1);
bcmasp_enable_phy_irq(intf, 1);
phy_start(dev->phydev);
}
@ -890,6 +891,7 @@ static void bcmasp_netif_deinit(struct net_device *dev)
/* Disable interrupts */
bcmasp_enable_tx_irq(intf, 0);
bcmasp_enable_rx_irq(intf, 0);
bcmasp_enable_phy_irq(intf, 0);
netif_napi_del(&intf->tx_napi);
netif_napi_del(&intf->rx_napi);
@ -1028,6 +1030,9 @@ static int bcmasp_netif_init(struct net_device *dev, bool phy_connect)
goto err_phy_disable;
}
if (intf->internal_phy)
dev->phydev->irq = PHY_MAC_INTERRUPT;
/* Indicate that the MAC is responsible for PHY PM */
phydev->mac_managed_pm = true;
} else if (!intf->wolopts) {