#include <asm/uaccess.h>
#define DRV_NAME "natsemi"
-#define DRV_VERSION "2.0"
-#define DRV_RELDATE "June 27, 2006"
+#define DRV_VERSION "2.1"
+#define DRV_RELDATE "Sept 11, 2006"
#define RX_OFFSET 2
module_param_array(full_duplex, int, NULL, 0);
MODULE_PARM_DESC(mtu, "DP8381x MTU (all boards)");
MODULE_PARM_DESC(debug, "DP8381x default debug level");
-MODULE_PARM_DESC(rx_copybreak,
+MODULE_PARM_DESC(rx_copybreak,
"DP8381x copy breakpoint for copy-only-tiny-frames");
-MODULE_PARM_DESC(options,
+MODULE_PARM_DESC(options,
"DP8381x: Bits 0-3: media type, bit 17: full duplex");
MODULE_PARM_DESC(full_duplex, "DP8381x full duplex setting(s) (1)");
MII_EN_SCRM = 0x0004, /* enable scrambler (tp) */
};
-
+enum {
+ NATSEMI_FLAG_IGNORE_PHY = 0x1,
+};
+
/* array of board data directly indexed by pci_tbl[x].driver_data */
static const struct {
const char *name;
unsigned long flags;
unsigned int eeprom_size;
} natsemi_pci_info[] __devinitdata = {
+ { "Aculab E1/T1 PMXc cPCI carrier card", NATSEMI_FLAG_IGNORE_PHY, 128 },
{ "NatSemi DP8381[56]", 0, 24 },
};
static const struct pci_device_id natsemi_pci_tbl[] __devinitdata = {
- { PCI_VENDOR_ID_NS, 0x0020, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_NS, 0x0020, 0x12d9, 0x000c, 0, 0, 0 },
+ { PCI_VENDOR_ID_NS, 0x0020, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
{ } /* terminate list */
};
MODULE_DEVICE_TABLE(pci, natsemi_pci_tbl);
TxCarrierIgn = 0x80000000
};
-/*
+/*
* Tx Configuration:
* - 256 byte DMA burst length
* - fill threshold 512 bytes (i.e. restart DMA when 512 bytes are free)
u32 intr_status;
/* Do not touch the nic registers */
int hands_off;
+ /* Don't pay attention to the reported link state. */
+ int ignore_phy;
/* external phy that is used: only valid if dev->if_port != PORT_TP */
int mii;
int phy_addr_external;
static void reinit_ring(struct net_device *dev);
static void init_registers(struct net_device *dev);
static int start_tx(struct sk_buff *skb, struct net_device *dev);
-static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *regs);
+static irqreturn_t intr_handler(int irq, void *dev_instance);
static void netdev_error(struct net_device *dev, int intr_status);
static int natsemi_poll(struct net_device *dev, int *budget);
static void netdev_rx(struct net_device *dev, int *work_done, int work_to_do);
static int netdev_close(struct net_device *dev);
static int netdev_get_regs(struct net_device *dev, u8 *buf);
static int netdev_get_eeprom(struct net_device *dev, u8 *buf);
-static struct ethtool_ops ethtool_ops;
+static const struct ethtool_ops ethtool_ops;
static inline void __iomem *ns_ioaddr(struct net_device *dev)
{
void __iomem *ioaddr = ns_ioaddr(dev);
int target = 31;
- /*
+ /*
* The internal phy is visible on the external mii bus. Therefore we must
* move it away before we can send commands to an external phy.
* There are two addresses we must avoid:
struct netdev_private *np = netdev_priv(dev);
u32 tmp;
- netif_carrier_off(dev);
+ if (np->ignore_phy)
+ netif_carrier_on(dev);
+ else
+ netif_carrier_off(dev);
/* get the initial settings from hardware */
tmp = mdio_read(dev, MII_BMCR);
np->hands_off = 0;
np->intr_status = 0;
np->eeprom_size = natsemi_pci_info[chip_idx].eeprom_size;
+ if (natsemi_pci_info[chip_idx].flags & NATSEMI_FLAG_IGNORE_PHY)
+ np->ignore_phy = 1;
+ else
+ np->ignore_phy = 0;
/* Initial port:
+ * - If configured to ignore the PHY set up for external.
* - If the nic was configured to use an external phy and if find_mii
* finds a phy: use external port, first phy that replies.
* - Otherwise: internal port.
* The address would be used to access a phy over the mii bus, but
* the internal phy is accessed through mapped registers.
*/
- if (readl(ioaddr + ChipConfig) & CfgExtPhy)
+ if (np->ignore_phy || readl(ioaddr + ChipConfig) & CfgExtPhy)
dev->if_port = PORT_MII;
else
dev->if_port = PORT_TP;
if (dev->if_port != PORT_TP) {
np->phy_addr_external = find_mii(dev);
- if (np->phy_addr_external == PHY_ADDR_NONE) {
+ /* If we're ignoring the PHY it doesn't matter if we can't
+ * find one. */
+ if (!np->ignore_phy && np->phy_addr_external == PHY_ADDR_NONE) {
dev->if_port = PORT_TP;
np->phy_addr_external = PHY_ADDR_INTERNAL;
}
printk("%02x, IRQ %d", dev->dev_addr[i], irq);
if (dev->if_port == PORT_TP)
printk(", port TP.\n");
+ else if (np->ignore_phy)
+ printk(", port MII, ignoring PHY\n");
else
printk(", port MII, phy ad %d.\n", np->phy_addr_external);
}
tmp |= BMCR_SPEED100;
if (np->duplex == DUPLEX_FULL)
tmp |= BMCR_FULLDPLX;
- /*
+ /*
* Note: there is no good way to inform the link partner
* that our capabilities changed. The user has to unplug
* and replug the network cable after some changes, e.g.
writel(cfg, ioaddr + ChipConfig);
readl(ioaddr + ChipConfig);
udelay(1);
-
+
/* 2) reset the internal phy: */
bmcr = readw(ioaddr+BasicControl+(MII_BMCR<<2));
writel(bmcr | BMCR_RESET, ioaddr+BasicControl+(MII_BMCR<<2));
/* Switch to external phy */
did_switch = switch_port_external(dev);
-
+
/* Scan the possible phy addresses:
*
* PHY address 0 means that the phy is in isolate mode. Not yet
{
struct netdev_private *np = netdev_priv(dev);
void __iomem * ioaddr = ns_ioaddr(dev);
- int duplex;
+ int duplex = np->duplex;
u16 bmsr;
-
+
+ /* If we are ignoring the PHY then don't try reading it. */
+ if (np->ignore_phy)
+ goto propagate_state;
+
/* The link status field is latched: it remains low after a temporary
* link failure until it's read. We need the current link status,
* thus read twice.
if (netif_carrier_ok(dev)) {
if (netif_msg_link(np))
printk(KERN_NOTICE "%s: link down.\n",
- dev->name);
+ dev->name);
netif_carrier_off(dev);
undo_cable_magic(dev);
}
duplex = 1;
}
+propagate_state:
/* if duplex is set then bit 28 must be set, too */
if (duplex ^ !!(np->rx_config & RxAcceptTx)) {
if (netif_msg_link(np))
struct netdev_private *np = netdev_priv(dev);
void __iomem * ioaddr = ns_ioaddr(dev);
unsigned entry;
+ unsigned long flags;
/* Note: Ordering is important here, set the field with the
"ownership" bit last, and only then increment cur_tx. */
np->tx_ring[entry].addr = cpu_to_le32(np->tx_dma[entry]);
- spin_lock_irq(&np->lock);
+ spin_lock_irqsave(&np->lock, flags);
if (!np->hands_off) {
np->tx_ring[entry].cmd_status = cpu_to_le32(DescOwn | skb->len);
dev_kfree_skb_irq(skb);
np->stats.tx_dropped++;
}
- spin_unlock_irq(&np->lock);
+ spin_unlock_irqrestore(&np->lock, flags);
dev->trans_start = jiffies;
/* The interrupt handler doesn't actually handle interrupts itself, it
* schedules a NAPI poll if there is anything to do. */
-static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs)
+static irqreturn_t intr_handler(int irq, void *dev_instance)
{
struct net_device *dev = dev_instance;
struct netdev_private *np = netdev_priv(dev);
if (np->hands_off)
return IRQ_NONE;
-
+
/* Reading automatically acknowledges. */
np->intr_status = readl(ioaddr + IntrStatus);
dev->name, np->intr_status,
readl(ioaddr + IntrMask));
- if (!np->intr_status)
+ if (!np->intr_status)
return IRQ_NONE;
prefetch(&np->rx_skbuff[np->cur_rx % RX_RING_SIZE]);
/* Abnormal error summary/uncommon events handlers. */
if (np->intr_status & IntrAbnormalSummary)
netdev_error(dev, np->intr_status);
-
+
if (np->intr_status &
(IntrRxDone | IntrRxIntr | RxStatusFIFOOver |
IntrRxErr | IntrRxOverrun)) {
netdev_rx(dev, &work_done, work_to_do);
}
-
+
*budget -= work_done;
dev->quota -= work_done;
pkt_len = (desc_status & DescSizeMask) - 4;
if ((desc_status&(DescMore|DescPktOK|DescRxLong)) != DescPktOK){
if (desc_status & DescMore) {
+ unsigned long flags;
+
if (netif_msg_rx_err(np))
printk(KERN_WARNING
"%s: Oversized(?) Ethernet "
* reset procedure documented in
* AN-1287. */
- spin_lock_irq(&np->lock);
+ spin_lock_irqsave(&np->lock, flags);
reset_rx(dev);
reinit_rx(dev);
writel(np->ring_dma, ioaddr + RxRingPtr);
check_link(dev);
- spin_unlock_irq(&np->lock);
+ spin_unlock_irqrestore(&np->lock, flags);
/* We'll enable RX on exit from this
* function. */
#ifdef CONFIG_NET_POLL_CONTROLLER
static void natsemi_poll_controller(struct net_device *dev)
{
+ struct netdev_private *np = netdev_priv(dev);
+
disable_irq(dev->irq);
- intr_handler(dev->irq, dev, NULL);
+
+ /*
+ * A real interrupt might have already reached us at this point
+ * but NAPI might still haven't called us back. As the interrupt
+ * status register is cleared by reading, we should prevent an
+ * interrupt loss in this case...
+ */
+ if (!np->intr_status)
+ intr_handler(dev->irq, dev);
+
enable_irq(dev->irq);
}
#endif
u32 rx_mode;
if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
- /* Unconditionally log net taps. */
- printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n",
- dev->name);
rx_mode = RxFilterEnable | AcceptBroadcast
| AcceptAllMulticast | AcceptAllPhys | AcceptMyPhys;
} else if ((dev->mc_count > multicast_filter_limit)
return res;
}
-static struct ethtool_ops ethtool_ops = {
+static const struct ethtool_ops ethtool_ops = {
.get_drvinfo = get_drvinfo,
.get_regs_len = get_regs_len,
.get_eeprom_len = get_eeprom_len,
* phy, even if the internal phy is used. This is necessary
* to work around a deficiency of the ethtool interface:
* It's only possible to query the settings of the active
- * port. Therefore
+ * port. Therefore
* # ethtool -s ethX port mii
* actually sends an ioctl to switch to port mii with the
* settings that are used for the current active port.
return -EINVAL;
}
+ /*
+ * If we're ignoring the PHY then autoneg and the internal
+ * transciever are really not going to work so don't let the
+ * user select them.
+ */
+ if (np->ignore_phy && (ecmd->autoneg == AUTONEG_ENABLE ||
+ ecmd->port == PORT_TP))
+ return -EINVAL;
+
/*
* maxtxpkt, maxrxpkt: ignored for now.
*
projects / powerpc.git / blobdiff