#define RX_RING_SIZE 512
#define TX_RING_SIZE 512
+#define DEFAULT_MSG_ENABLE \
+ (NETIF_MSG_DRV | \
+ NETIF_MSG_PROBE | \
+ NETIF_MSG_LINK | \
+ NETIF_MSG_TIMER | \
+ NETIF_MSG_IFDOWN | \
+ NETIF_MSG_IFUP | \
+ NETIF_MSG_RX_ERR | \
+ NETIF_MSG_TX_ERR)
+
#define TX_DESC(mac, num) ((mac)->tx->desc[(num) & (TX_RING_SIZE-1)])
#define TX_DESC_INFO(mac, num) ((mac)->tx->desc_info[(num) & (TX_RING_SIZE-1)])
#define RX_DESC(mac, num) ((mac)->rx->desc[(num) & (RX_RING_SIZE-1)])
#define BUF_SIZE 1646 /* 1500 MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");
+MODULE_DESCRIPTION("PA Semi PWRficient Ethernet driver");
+
+static int debug = -1; /* -1 == use DEFAULT_MSG_ENABLE as value */
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "PA Semi MAC bitmapped debugging message enable value");
+
static struct pasdma_status *dma_status;
static int pasemi_get_mac_addr(struct pasemi_mac *mac)
{
struct pci_dev *pdev = mac->pdev;
struct device_node *dn = pci_device_to_OF_node(pdev);
+ int len;
const u8 *maddr;
u8 addr[6];
return -ENOENT;
}
- maddr = get_property(dn, "mac-address", NULL);
+ maddr = of_get_property(dn, "local-mac-address", &len);
+
+ if (maddr && len == 6) {
+ memcpy(mac->mac_addr, maddr, 6);
+ return 0;
+ }
+
+ /* Some old versions of firmware mistakenly uses mac-address
+ * (and as a string) instead of a byte array in local-mac-address.
+ */
+
+ if (maddr == NULL)
+ maddr = of_get_property(dn, "mac-address", NULL);
+
if (maddr == NULL) {
dev_warn(&pdev->dev,
"no mac address in device tree, not configuring\n");
return -ENOENT;
}
+
if (sscanf(maddr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &addr[0],
&addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) != 6) {
dev_warn(&pdev->dev,
return -EINVAL;
}
- memcpy(mac->mac_addr, addr, sizeof(addr));
+ memcpy(mac->mac_addr, addr, 6);
+
return 0;
}
static void pasemi_mac_restart_rx_intr(struct pasemi_mac *mac)
{
- unsigned int reg, stat;
+ unsigned int reg, pcnt;
/* Re-enable packet count interrupts: finally
* ack the packet count interrupt we got in rx_intr.
*/
- pci_read_config_dword(mac->iob_pdev,
- PAS_IOB_DMA_RXCH_STAT(mac->dma_rxch),
- &stat);
+ pcnt = *mac->rx_status & PAS_STATUS_PCNT_M;
- reg = PAS_IOB_DMA_RXCH_RESET_PCNT(stat & PAS_IOB_DMA_RXCH_STAT_CNTDEL_M)
- | PAS_IOB_DMA_RXCH_RESET_PINTC;
+ reg = PAS_IOB_DMA_RXCH_RESET_PCNT(pcnt) | PAS_IOB_DMA_RXCH_RESET_PINTC;
pci_write_config_dword(mac->iob_pdev,
PAS_IOB_DMA_RXCH_RESET(mac->dma_rxch),
static void pasemi_mac_restart_tx_intr(struct pasemi_mac *mac)
{
- unsigned int reg, stat;
+ unsigned int reg, pcnt;
/* Re-enable packet count interrupts */
- pci_read_config_dword(mac->iob_pdev,
- PAS_IOB_DMA_TXCH_STAT(mac->dma_txch), &stat);
+ pcnt = *mac->tx_status & PAS_STATUS_PCNT_M;
- reg = PAS_IOB_DMA_TXCH_RESET_PCNT(stat & PAS_IOB_DMA_TXCH_STAT_CNTDEL_M)
- | PAS_IOB_DMA_TXCH_RESET_PINTC;
+ reg = PAS_IOB_DMA_TXCH_RESET_PCNT(pcnt) | PAS_IOB_DMA_TXCH_RESET_PINTC;
pci_write_config_dword(mac->iob_pdev,
PAS_IOB_DMA_TXCH_RESET(mac->dma_txch), reg);
{
struct net_device *dev = data;
struct pasemi_mac *mac = netdev_priv(dev);
- unsigned int reg;
+ unsigned int reg, pcnt;
if (!(*mac->tx_status & PAS_STATUS_CAUSE_M))
return IRQ_NONE;
pasemi_mac_clean_tx(mac);
- reg = PAS_IOB_DMA_TXCH_RESET_PINTC;
+ pcnt = *mac->tx_status & PAS_STATUS_PCNT_M;
+
+ reg = PAS_IOB_DMA_TXCH_RESET_PCNT(pcnt) | PAS_IOB_DMA_TXCH_RESET_PINTC;
if (*mac->tx_status & PAS_STATUS_SOFT)
reg |= PAS_IOB_DMA_TXCH_RESET_SINTC;
if (*mac->tx_status & PAS_STATUS_ERROR)
reg |= PAS_IOB_DMA_TXCH_RESET_DINTC;
- pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_TXCH_RESET(mac->dma_txch),
+ pci_write_config_dword(mac->iob_pdev,
+ PAS_IOB_DMA_TXCH_RESET(mac->dma_txch),
reg);
return IRQ_HANDLED;
}
+static void pasemi_adjust_link(struct net_device *dev)
+{
+ struct pasemi_mac *mac = netdev_priv(dev);
+ int msg;
+ unsigned int flags;
+ unsigned int new_flags;
+
+ if (!mac->phydev->link) {
+ /* If no link, MAC speed settings don't matter. Just report
+ * link down and return.
+ */
+ if (mac->link && netif_msg_link(mac))
+ printk(KERN_INFO "%s: Link is down.\n", dev->name);
+
+ netif_carrier_off(dev);
+ mac->link = 0;
+
+ return;
+ } else
+ netif_carrier_on(dev);
+
+ pci_read_config_dword(mac->pdev, PAS_MAC_CFG_PCFG, &flags);
+ new_flags = flags & ~(PAS_MAC_CFG_PCFG_HD | PAS_MAC_CFG_PCFG_SPD_M |
+ PAS_MAC_CFG_PCFG_TSR_M);
+
+ if (!mac->phydev->duplex)
+ new_flags |= PAS_MAC_CFG_PCFG_HD;
+
+ switch (mac->phydev->speed) {
+ case 1000:
+ new_flags |= PAS_MAC_CFG_PCFG_SPD_1G |
+ PAS_MAC_CFG_PCFG_TSR_1G;
+ break;
+ case 100:
+ new_flags |= PAS_MAC_CFG_PCFG_SPD_100M |
+ PAS_MAC_CFG_PCFG_TSR_100M;
+ break;
+ case 10:
+ new_flags |= PAS_MAC_CFG_PCFG_SPD_10M |
+ PAS_MAC_CFG_PCFG_TSR_10M;
+ break;
+ default:
+ printk("Unsupported speed %d\n", mac->phydev->speed);
+ }
+
+ /* Print on link or speed/duplex change */
+ msg = mac->link != mac->phydev->link || flags != new_flags;
+
+ mac->duplex = mac->phydev->duplex;
+ mac->speed = mac->phydev->speed;
+ mac->link = mac->phydev->link;
+
+ if (new_flags != flags)
+ pci_write_config_dword(mac->pdev, PAS_MAC_CFG_PCFG, new_flags);
+
+ if (msg && netif_msg_link(mac))
+ printk(KERN_INFO "%s: Link is up at %d Mbps, %s duplex.\n",
+ dev->name, mac->speed, mac->duplex ? "full" : "half");
+}
+
+static int pasemi_mac_phy_init(struct net_device *dev)
+{
+ struct pasemi_mac *mac = netdev_priv(dev);
+ struct device_node *dn, *phy_dn;
+ struct phy_device *phydev;
+ unsigned int phy_id;
+ const phandle *ph;
+ const unsigned int *prop;
+ struct resource r;
+ int ret;
+
+ dn = pci_device_to_OF_node(mac->pdev);
+ ph = of_get_property(dn, "phy-handle", NULL);
+ if (!ph)
+ return -ENODEV;
+ phy_dn = of_find_node_by_phandle(*ph);
+
+ prop = of_get_property(phy_dn, "reg", NULL);
+ ret = of_address_to_resource(phy_dn->parent, 0, &r);
+ if (ret)
+ goto err;
+
+ phy_id = *prop;
+ snprintf(mac->phy_id, BUS_ID_SIZE, PHY_ID_FMT, (int)r.start, phy_id);
+
+ of_node_put(phy_dn);
+
+ mac->link = 0;
+ mac->speed = 0;
+ mac->duplex = -1;
+
+ phydev = phy_connect(dev, mac->phy_id, &pasemi_adjust_link, 0, PHY_INTERFACE_MODE_SGMII);
+
+ if (IS_ERR(phydev)) {
+ printk(KERN_ERR "%s: Could not attach to phy\n", dev->name);
+ return PTR_ERR(phydev);
+ }
+
+ mac->phydev = phydev;
+
+ return 0;
+
+err:
+ of_node_put(phy_dn);
+ return -ENODEV;
+}
+
+
static int pasemi_mac_open(struct net_device *dev)
{
struct pasemi_mac *mac = netdev_priv(dev);
pasemi_mac_replenish_rx_ring(dev);
+ ret = pasemi_mac_phy_init(dev);
+ /* Some configs don't have PHYs (XAUI etc), so don't complain about
+ * failed init due to -ENODEV.
+ */
+ if (ret && ret != -ENODEV)
+ dev_warn(&mac->pdev->dev, "phy init failed: %d\n", ret);
+
netif_start_queue(dev);
netif_poll_enable(dev);
goto out_rx_int;
}
+ if (mac->phydev)
+ phy_start(mac->phydev);
+
return 0;
out_rx_int:
unsigned int stat;
int retries;
+ if (mac->phydev) {
+ phy_stop(mac->phydev);
+ phy_disconnect(mac->phydev);
+ }
+
netif_stop_queue(dev);
/* Clean out any pending buffers */
if (txring->next_to_clean - txring->next_to_use == TX_RING_SIZE) {
spin_unlock_irqrestore(&txring->lock, flags);
pasemi_mac_clean_tx(mac);
+ pasemi_mac_restart_tx_intr(mac);
spin_lock_irqsave(&txring->lock, flags);
if (txring->next_to_clean - txring->next_to_use ==
return &mac->stats;
}
+
static void pasemi_mac_set_rx_mode(struct net_device *dev)
{
struct pasemi_mac *mac = netdev_priv(dev);
mac->rx_status = &dma_status->rx_sta[mac->dma_rxch];
mac->tx_status = &dma_status->tx_sta[mac->dma_txch];
+ mac->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
+
+ /* Enable most messages by default */
+ mac->msg_enable = (NETIF_MSG_IFUP << 1 ) - 1;
+
err = register_netdev(dev);
if (err) {
static struct pci_device_id pasemi_mac_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_PASEMI, 0xa005) },
{ PCI_DEVICE(PCI_VENDOR_ID_PASEMI, 0xa006) },
+ { },
};
MODULE_DEVICE_TABLE(pci, pasemi_mac_pci_tbl);
return pci_register_driver(&pasemi_mac_driver);
}
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");
-MODULE_DESCRIPTION("PA Semi PWRficient Ethernet driver");
-
module_init(pasemi_mac_init_module);
module_exit(pasemi_mac_cleanup_module);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff