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path: root/drivers/net/enc28j60.c
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Diffstat (limited to 'drivers/net/enc28j60.c')
-rw-r--r--drivers/net/enc28j60.c89
1 files changed, 60 insertions, 29 deletions
diff --git a/drivers/net/enc28j60.c b/drivers/net/enc28j60.c
index e1b441effbb..fc6cc038c7b 100644
--- a/drivers/net/enc28j60.c
+++ b/drivers/net/enc28j60.c
@@ -196,16 +196,32 @@ static void enc28j60_soft_reset(struct enc28j60_net *priv)
*/
static void enc28j60_set_bank(struct enc28j60_net *priv, u8 addr)
{
- if ((addr & BANK_MASK) != priv->bank) {
- u8 b = (addr & BANK_MASK) >> 5;
+ u8 b = (addr & BANK_MASK) >> 5;
- if (b != (ECON1_BSEL1 | ECON1_BSEL0))
+ /* These registers (EIE, EIR, ESTAT, ECON2, ECON1)
+ * are present in all banks, no need to switch bank
+ */
+ if (addr >= EIE && addr <= ECON1)
+ return;
+
+ /* Clear or set each bank selection bit as needed */
+ if ((b & ECON1_BSEL0) != (priv->bank & ECON1_BSEL0)) {
+ if (b & ECON1_BSEL0)
+ spi_write_op(priv, ENC28J60_BIT_FIELD_SET, ECON1,
+ ECON1_BSEL0);
+ else
+ spi_write_op(priv, ENC28J60_BIT_FIELD_CLR, ECON1,
+ ECON1_BSEL0);
+ }
+ if ((b & ECON1_BSEL1) != (priv->bank & ECON1_BSEL1)) {
+ if (b & ECON1_BSEL1)
+ spi_write_op(priv, ENC28J60_BIT_FIELD_SET, ECON1,
+ ECON1_BSEL1);
+ else
spi_write_op(priv, ENC28J60_BIT_FIELD_CLR, ECON1,
- ECON1_BSEL1 | ECON1_BSEL0);
- if (b != 0)
- spi_write_op(priv, ENC28J60_BIT_FIELD_SET, ECON1, b);
- priv->bank = (addr & BANK_MASK);
+ ECON1_BSEL1);
}
+ priv->bank = b;
}
/*
@@ -477,12 +493,10 @@ static int enc28j60_set_hw_macaddr(struct net_device *ndev)
mutex_lock(&priv->lock);
if (!priv->hw_enable) {
- if (netif_msg_drv(priv)) {
- DECLARE_MAC_BUF(mac);
+ if (netif_msg_drv(priv))
printk(KERN_INFO DRV_NAME
- ": %s: Setting MAC address to %s\n",
- ndev->name, print_mac(mac, ndev->dev_addr));
- }
+ ": %s: Setting MAC address to %pM\n",
+ ndev->name, ndev->dev_addr);
/* NOTE: MAC address in ENC28J60 is byte-backward */
nolock_regb_write(priv, MAADR5, ndev->dev_addr[0]);
nolock_regb_write(priv, MAADR4, ndev->dev_addr[1]);
@@ -568,6 +582,17 @@ static u16 erxrdpt_workaround(u16 next_packet_ptr, u16 start, u16 end)
return erxrdpt;
}
+/*
+ * Calculate wrap around when reading beyond the end of the RX buffer
+ */
+static u16 rx_packet_start(u16 ptr)
+{
+ if (ptr + RSV_SIZE > RXEND_INIT)
+ return (ptr + RSV_SIZE) - (RXEND_INIT - RXSTART_INIT + 1);
+ else
+ return ptr + RSV_SIZE;
+}
+
static void nolock_rxfifo_init(struct enc28j60_net *priv, u16 start, u16 end)
{
u16 erxrdpt;
@@ -919,7 +944,7 @@ static void enc28j60_hw_rx(struct net_device *ndev)
if (netif_msg_rx_status(priv))
enc28j60_dump_rsv(priv, __func__, next_packet, len, rxstat);
- if (!RSV_GETBIT(rxstat, RSV_RXOK)) {
+ if (!RSV_GETBIT(rxstat, RSV_RXOK) || len > MAX_FRAMELEN) {
if (netif_msg_rx_err(priv))
dev_err(&ndev->dev, "Rx Error (%04x)\n", rxstat);
ndev->stats.rx_errors++;
@@ -927,6 +952,8 @@ static void enc28j60_hw_rx(struct net_device *ndev)
ndev->stats.rx_crc_errors++;
if (RSV_GETBIT(rxstat, RSV_LENCHECKERR))
ndev->stats.rx_frame_errors++;
+ if (len > MAX_FRAMELEN)
+ ndev->stats.rx_over_errors++;
} else {
skb = dev_alloc_skb(len + NET_IP_ALIGN);
if (!skb) {
@@ -938,16 +965,16 @@ static void enc28j60_hw_rx(struct net_device *ndev)
skb->dev = ndev;
skb_reserve(skb, NET_IP_ALIGN);
/* copy the packet from the receive buffer */
- enc28j60_mem_read(priv, priv->next_pk_ptr + sizeof(rsv),
- len, skb_put(skb, len));
+ enc28j60_mem_read(priv,
+ rx_packet_start(priv->next_pk_ptr),
+ len, skb_put(skb, len));
if (netif_msg_pktdata(priv))
dump_packet(__func__, skb->len, skb->data);
skb->protocol = eth_type_trans(skb, ndev);
/* update statistics */
ndev->stats.rx_packets++;
ndev->stats.rx_bytes += len;
- ndev->last_rx = jiffies;
- netif_rx(skb);
+ netif_rx_ni(skb);
}
}
/*
@@ -1328,11 +1355,9 @@ static int enc28j60_net_open(struct net_device *dev)
printk(KERN_DEBUG DRV_NAME ": %s() enter\n", __func__);
if (!is_valid_ether_addr(dev->dev_addr)) {
- if (netif_msg_ifup(priv)) {
- DECLARE_MAC_BUF(mac);
- dev_err(&dev->dev, "invalid MAC address %s\n",
- print_mac(mac, dev->dev_addr));
- }
+ if (netif_msg_ifup(priv))
+ dev_err(&dev->dev, "invalid MAC address %pM\n",
+ dev->dev_addr);
return -EADDRNOTAVAIL;
}
/* Reset the hardware here (and take it out of low power mode) */
@@ -1453,7 +1478,7 @@ enc28j60_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
strlcpy(info->version, DRV_VERSION, sizeof(info->version));
strlcpy(info->bus_info,
- dev->dev.parent->bus_id, sizeof(info->bus_info));
+ dev_name(dev->dev.parent), sizeof(info->bus_info));
}
static int
@@ -1506,6 +1531,17 @@ static int enc28j60_chipset_init(struct net_device *dev)
return enc28j60_hw_init(priv);
}
+static const struct net_device_ops enc28j60_netdev_ops = {
+ .ndo_open = enc28j60_net_open,
+ .ndo_stop = enc28j60_net_close,
+ .ndo_start_xmit = enc28j60_send_packet,
+ .ndo_set_multicast_list = enc28j60_set_multicast_list,
+ .ndo_set_mac_address = enc28j60_set_mac_address,
+ .ndo_tx_timeout = enc28j60_tx_timeout,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
static int __devinit enc28j60_probe(struct spi_device *spi)
{
struct net_device *dev;
@@ -1560,12 +1596,7 @@ static int __devinit enc28j60_probe(struct spi_device *spi)
dev->if_port = IF_PORT_10BASET;
dev->irq = spi->irq;
- dev->open = enc28j60_net_open;
- dev->stop = enc28j60_net_close;
- dev->hard_start_xmit = enc28j60_send_packet;
- dev->set_multicast_list = &enc28j60_set_multicast_list;
- dev->set_mac_address = enc28j60_set_mac_address;
- dev->tx_timeout = &enc28j60_tx_timeout;
+ dev->netdev_ops = &enc28j60_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
SET_ETHTOOL_OPS(dev, &enc28j60_ethtool_ops);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-18 05:40:38 +0000