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path: root/drivers/net/ethernet/broadcom/genet
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-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmgenet.c40
-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmgenet.h2
-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c39
-rw-r--r--drivers/net/ethernet/broadcom/genet/bcmmii.c33
4 files changed, 79 insertions, 35 deletions
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 2369b4bd63e3..795ef2de5506 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -69,6 +69,9 @@
#define GENET_RDMA_REG_OFF (priv->hw_params->rdma_offset + \
TOTAL_DESC * DMA_DESC_SIZE)
+/* Forward declarations */
+static void bcmgenet_set_rx_mode(struct net_device *dev);
+
static inline void bcmgenet_writel(u32 value, void __iomem *offset)
{
/* MIPS chips strapped for BE will automagically configure the
@@ -995,6 +998,8 @@ static void bcmgenet_get_ethtool_stats(struct net_device *dev,
if (netif_running(dev))
bcmgenet_update_mib_counters(priv);
+ dev->netdev_ops->ndo_get_stats(dev);
+
for (i = 0; i < BCMGENET_STATS_LEN; i++) {
const struct bcmgenet_stats *s;
char *p;
@@ -1585,11 +1590,6 @@ static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
goto out;
}
- if (skb_padto(skb, ETH_ZLEN)) {
- ret = NETDEV_TX_OK;
- goto out;
- }
-
/* Retain how many bytes will be sent on the wire, without TSB inserted
* by transmit checksum offload
*/
@@ -1638,6 +1638,9 @@ static netdev_tx_t bcmgenet_xmit(struct sk_buff *skb, struct net_device *dev)
len_stat = (size << DMA_BUFLENGTH_SHIFT) |
(priv->hw_params->qtag_mask << DMA_TX_QTAG_SHIFT);
+ /* Note: if we ever change from DMA_TX_APPEND_CRC below we
+ * will need to restore software padding of "runt" packets
+ */
if (!i) {
len_stat |= DMA_TX_APPEND_CRC | DMA_SOP;
if (skb->ip_summed == CHECKSUM_PARTIAL)
@@ -1694,7 +1697,8 @@ static struct sk_buff *bcmgenet_rx_refill(struct bcmgenet_priv *priv,
dma_addr_t mapping;
/* Allocate a new Rx skb */
- skb = netdev_alloc_skb(priv->dev, priv->rx_buf_len + SKB_ALIGNMENT);
+ skb = __netdev_alloc_skb(priv->dev, priv->rx_buf_len + SKB_ALIGNMENT,
+ GFP_ATOMIC | __GFP_NOWARN);
if (!skb) {
priv->mib.alloc_rx_buff_failed++;
netif_err(priv, rx_err, priv->dev,
@@ -1995,8 +1999,6 @@ static void reset_umac(struct bcmgenet_priv *priv)
/* issue soft reset with (rg)mii loopback to ensure a stable rxclk */
bcmgenet_umac_writel(priv, CMD_SW_RESET | CMD_LCL_LOOP_EN, UMAC_CMD);
- udelay(2);
- bcmgenet_umac_writel(priv, 0, UMAC_CMD);
}
static void bcmgenet_intr_disable(struct bcmgenet_priv *priv)
@@ -2017,6 +2019,8 @@ static void bcmgenet_link_intr_enable(struct bcmgenet_priv *priv)
*/
if (priv->internal_phy) {
int0_enable |= UMAC_IRQ_LINK_EVENT;
+ if (GENET_IS_V1(priv) || GENET_IS_V2(priv) || GENET_IS_V3(priv))
+ int0_enable |= UMAC_IRQ_PHY_DET_R;
} else if (priv->ext_phy) {
int0_enable |= UMAC_IRQ_LINK_EVENT;
} else if (priv->phy_interface == PHY_INTERFACE_MODE_MOCA) {
@@ -2163,8 +2167,8 @@ static void bcmgenet_init_tx_ring(struct bcmgenet_priv *priv,
DMA_END_ADDR);
/* Initialize Tx NAPI */
- netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll,
- NAPI_POLL_WEIGHT);
+ netif_tx_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll,
+ NAPI_POLL_WEIGHT);
}
/* Initialize a RDMA ring */
@@ -2615,11 +2619,16 @@ static void bcmgenet_irq_task(struct work_struct *work)
priv->irq0_stat = 0;
spin_unlock_irq(&priv->lock);
+ if (status & UMAC_IRQ_PHY_DET_R &&
+ priv->dev->phydev->autoneg != AUTONEG_ENABLE) {
+ phy_init_hw(priv->dev->phydev);
+ genphy_config_aneg(priv->dev->phydev);
+ }
+
/* Link UP/DOWN event */
- if (status & UMAC_IRQ_LINK_EVENT) {
- priv->dev->phydev->link = !!(status & UMAC_IRQ_LINK_UP);
+ if (status & UMAC_IRQ_LINK_EVENT)
phy_mac_interrupt(priv->dev->phydev);
- }
+
}
/* bcmgenet_isr1: handle Rx and Tx priority queues */
@@ -2714,7 +2723,7 @@ static irqreturn_t bcmgenet_isr0(int irq, void *dev_id)
}
/* all other interested interrupts handled in bottom half */
- status &= UMAC_IRQ_LINK_EVENT;
+ status &= (UMAC_IRQ_LINK_EVENT | UMAC_IRQ_PHY_DET_R);
if (status) {
/* Save irq status for bottom-half processing. */
spin_lock_irqsave(&priv->lock, flags);
@@ -2848,6 +2857,7 @@ static void bcmgenet_netif_start(struct net_device *dev)
struct bcmgenet_priv *priv = netdev_priv(dev);
/* Start the network engine */
+ bcmgenet_set_rx_mode(dev);
bcmgenet_enable_rx_napi(priv);
umac_enable_set(priv, CMD_TX_EN | CMD_RX_EN, true);
@@ -3203,6 +3213,7 @@ static struct net_device_stats *bcmgenet_get_stats(struct net_device *dev)
dev->stats.rx_packets = rx_packets;
dev->stats.rx_errors = rx_errors;
dev->stats.rx_missed_errors = rx_errors;
+ dev->stats.rx_dropped = rx_dropped;
return &dev->stats;
}
@@ -3637,6 +3648,7 @@ static int bcmgenet_resume(struct device *d)
phy_init_hw(dev->phydev);
/* Speed settings must be restored */
+ genphy_config_aneg(dev->phydev);
bcmgenet_mii_config(priv->dev, false);
bcmgenet_set_hw_addr(priv, dev->dev_addr);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index 51fc419f7410..b4df5e408f36 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -14,6 +14,7 @@
#include <linux/if_vlan.h>
#include <linux/phy.h>
#include <linux/net_dim.h>
+#include <linux/ethtool.h>
/* total number of Buffer Descriptors, same for Rx/Tx */
#define TOTAL_DESC 256
@@ -674,6 +675,7 @@ struct bcmgenet_priv {
/* WOL */
struct clk *clk_wol;
u32 wolopts;
+ u8 sopass[SOPASS_MAX];
struct bcmgenet_mib_counters mib;
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
index ea20d94bd050..a41f82379369 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c
@@ -41,18 +41,13 @@
void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
- u32 reg;
wol->supported = WAKE_MAGIC | WAKE_MAGICSECURE;
wol->wolopts = priv->wolopts;
memset(wol->sopass, 0, sizeof(wol->sopass));
- if (wol->wolopts & WAKE_MAGICSECURE) {
- reg = bcmgenet_umac_readl(priv, UMAC_MPD_PW_MS);
- put_unaligned_be16(reg, &wol->sopass[0]);
- reg = bcmgenet_umac_readl(priv, UMAC_MPD_PW_LS);
- put_unaligned_be32(reg, &wol->sopass[2]);
- }
+ if (wol->wolopts & WAKE_MAGICSECURE)
+ memcpy(wol->sopass, priv->sopass, sizeof(priv->sopass));
}
/* ethtool function - set WOL (Wake on LAN) settings.
@@ -62,7 +57,6 @@ int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
struct device *kdev = &priv->pdev->dev;
- u32 reg;
if (!device_can_wakeup(kdev))
return -ENOTSUPP;
@@ -70,17 +64,8 @@ int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
if (wol->wolopts & ~(WAKE_MAGIC | WAKE_MAGICSECURE))
return -EINVAL;
- reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
- if (wol->wolopts & WAKE_MAGICSECURE) {
- bcmgenet_umac_writel(priv, get_unaligned_be16(&wol->sopass[0]),
- UMAC_MPD_PW_MS);
- bcmgenet_umac_writel(priv, get_unaligned_be32(&wol->sopass[2]),
- UMAC_MPD_PW_LS);
- reg |= MPD_PW_EN;
- } else {
- reg &= ~MPD_PW_EN;
- }
- bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
+ if (wol->wolopts & WAKE_MAGICSECURE)
+ memcpy(priv->sopass, wol->sopass, sizeof(priv->sopass));
/* Flag the device and relevant IRQ as wakeup capable */
if (wol->wolopts) {
@@ -120,6 +105,14 @@ static int bcmgenet_poll_wol_status(struct bcmgenet_priv *priv)
return retries;
}
+static void bcmgenet_set_mpd_password(struct bcmgenet_priv *priv)
+{
+ bcmgenet_umac_writel(priv, get_unaligned_be16(&priv->sopass[0]),
+ UMAC_MPD_PW_MS);
+ bcmgenet_umac_writel(priv, get_unaligned_be32(&priv->sopass[2]),
+ UMAC_MPD_PW_LS);
+}
+
int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
enum bcmgenet_power_mode mode)
{
@@ -140,13 +133,17 @@ int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv,
reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
reg |= MPD_EN;
+ if (priv->wolopts & WAKE_MAGICSECURE) {
+ bcmgenet_set_mpd_password(priv);
+ reg |= MPD_PW_EN;
+ }
bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
/* Do not leave UniMAC in MPD mode only */
retries = bcmgenet_poll_wol_status(priv);
if (retries < 0) {
reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
- reg &= ~MPD_EN;
+ reg &= ~(MPD_EN | MPD_PW_EN);
bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
return retries;
}
@@ -185,7 +182,7 @@ void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv,
reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL);
if (!(reg & MPD_EN))
return; /* already powered up so skip the rest */
- reg &= ~MPD_EN;
+ reg &= ~(MPD_EN | MPD_PW_EN);
bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL);
/* Disable CRC Forward */
diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index e7c291bf4ed1..dbe18cdf6c1b 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -181,8 +181,38 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
const char *phy_name = NULL;
u32 id_mode_dis = 0;
u32 port_ctrl;
+ int bmcr = -1;
+ int ret;
u32 reg;
+ /* MAC clocking workaround during reset of umac state machines */
+ reg = bcmgenet_umac_readl(priv, UMAC_CMD);
+ if (reg & CMD_SW_RESET) {
+ /* An MII PHY must be isolated to prevent TXC contention */
+ if (priv->phy_interface == PHY_INTERFACE_MODE_MII) {
+ ret = phy_read(phydev, MII_BMCR);
+ if (ret >= 0) {
+ bmcr = ret;
+ ret = phy_write(phydev, MII_BMCR,
+ bmcr | BMCR_ISOLATE);
+ }
+ if (ret) {
+ netdev_err(dev, "failed to isolate PHY\n");
+ return ret;
+ }
+ }
+ /* Switch MAC clocking to RGMII generated clock */
+ bcmgenet_sys_writel(priv, PORT_MODE_EXT_GPHY, SYS_PORT_CTRL);
+ /* Ensure 5 clks with Rx disabled
+ * followed by 5 clks with Reset asserted
+ */
+ udelay(4);
+ reg &= ~(CMD_SW_RESET | CMD_LCL_LOOP_EN);
+ bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ /* Ensure 5 more clocks before Rx is enabled */
+ udelay(2);
+ }
+
priv->ext_phy = !priv->internal_phy &&
(priv->phy_interface != PHY_INTERFACE_MODE_MOCA);
@@ -214,6 +244,9 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
phy_set_max_speed(phydev, SPEED_100);
bcmgenet_sys_writel(priv,
PORT_MODE_EXT_EPHY, SYS_PORT_CTRL);
+ /* Restore the MII PHY after isolation */
+ if (bmcr >= 0)
+ phy_write(phydev, MII_BMCR, bmcr);
break;
case PHY_INTERFACE_MODE_REVMII:
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-01 06:43:25 +0000