static void batadv_interface_setup(struct net_device *dev)
{
	struct batadv_priv *priv = netdev_priv(dev);

	ether_setup(dev);

	dev->netdev_ops = &batadv_netdev_ops;
	dev->destructor = free_netdev;
	dev->tx_queue_len = 0;

	/* can't call min_mtu, because the needed variables
	 * have not been initialized yet
	 */
	dev->mtu = ETH_DATA_LEN;
	/* reserve more space in the skbuff for our header */
	dev->hard_header_len = BATADV_HEADER_LEN;

	/* generate random address */
	eth_hw_addr_random(dev);

	SET_ETHTOOL_OPS(dev, &batadv_ethtool_ops);

	memset(priv, 0, sizeof(*priv));
}
Example #2
0
static void do_setup(struct net_device *netdev)
{
	ether_setup(netdev);

	netdev->netdev_ops = &internal_dev_netdev_ops;

	netdev->priv_flags &= ~IFF_TX_SKB_SHARING;
	netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_OPENVSWITCH |
			      IFF_PHONY_HEADROOM | IFF_NO_QUEUE;
	netdev->destructor = internal_dev_destructor;
	netdev->ethtool_ops = &internal_dev_ethtool_ops;
	netdev->rtnl_link_ops = &internal_dev_link_ops;

	netdev->features = NETIF_F_LLTX | NETIF_F_SG | NETIF_F_FRAGLIST |
			   NETIF_F_HIGHDMA | NETIF_F_HW_CSUM |
			   NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ENCAP_ALL;

	netdev->vlan_features = netdev->features;
	netdev->hw_enc_features = netdev->features;
	netdev->features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX;
	netdev->hw_features = netdev->features & ~NETIF_F_LLTX;

	eth_hw_addr_random(netdev);
}
Example #3
0
static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
{
	int status = -1;
	u8 *buf = intf->cur_altsetting->extra;
	int len = intf->cur_altsetting->extralen;
	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
	struct usb_cdc_union_desc *cdc_union = NULL;
	struct usb_cdc_ether_desc *cdc_ether = NULL;
	u32 found = 0;
	struct usb_driver *driver = driver_of(intf);
	struct qmi_wwan_state *info = (void *)&dev->data;

	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
		      sizeof(struct qmi_wwan_state)));

	/* set up initial state */
	info->control = intf;
	info->data = intf;

	/* and a number of CDC descriptors */
	while (len > 3) {
		struct usb_descriptor_header *h = (void *)buf;

		/* ignore any misplaced descriptors */
		if (h->bDescriptorType != USB_DT_CS_INTERFACE)
			goto next_desc;

		/* buf[2] is CDC descriptor subtype */
		switch (buf[2]) {
		case USB_CDC_HEADER_TYPE:
			if (found & 1 << USB_CDC_HEADER_TYPE) {
				dev_dbg(&intf->dev, "extra CDC header\n");
				goto err;
			}
			if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
				dev_dbg(&intf->dev, "CDC header len %u\n",
					h->bLength);
				goto err;
			}
			break;
		case USB_CDC_UNION_TYPE:
			if (found & 1 << USB_CDC_UNION_TYPE) {
				dev_dbg(&intf->dev, "extra CDC union\n");
				goto err;
			}
			if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
				dev_dbg(&intf->dev, "CDC union len %u\n",
					h->bLength);
				goto err;
			}
			cdc_union = (struct usb_cdc_union_desc *)buf;
			break;
		case USB_CDC_ETHERNET_TYPE:
			if (found & 1 << USB_CDC_ETHERNET_TYPE) {
				dev_dbg(&intf->dev, "extra CDC ether\n");
				goto err;
			}
			if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
				dev_dbg(&intf->dev, "CDC ether len %u\n",
					h->bLength);
				goto err;
			}
			cdc_ether = (struct usb_cdc_ether_desc *)buf;
			break;
		}

		/* Remember which CDC functional descriptors we've seen.  Works
		 * for all types we care about, of which USB_CDC_ETHERNET_TYPE
		 * (0x0f) is the highest numbered
		 */
		if (buf[2] < 32)
			found |= 1 << buf[2];

next_desc:
		len -= h->bLength;
		buf += h->bLength;
	}

	/* Use separate control and data interfaces if we found a CDC Union */
	if (cdc_union) {
		info->data = usb_ifnum_to_if(dev->udev,
					     cdc_union->bSlaveInterface0);
		if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
		    !info->data) {
			dev_err(&intf->dev,
				"bogus CDC Union: master=%u, slave=%u\n",
				cdc_union->bMasterInterface0,
				cdc_union->bSlaveInterface0);
			goto err;
		}
	}

	/* errors aren't fatal - we can live with the dynamic address */
	if (cdc_ether) {
		dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
		usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
	}

	/* claim data interface and set it up */
	if (info->control != info->data) {
		status = usb_driver_claim_interface(driver, info->data, dev);
		if (status < 0)
			goto err;
	}

	status = qmi_wwan_register_subdriver(dev);
	if (status < 0 && info->control != info->data) {
		usb_set_intfdata(info->data, NULL);
		usb_driver_release_interface(driver, info->data);
	}

	/* Never use the same address on both ends of the link, even if the
	 * buggy firmware told us to. Or, if device is assigned the well-known
	 * buggy firmware MAC address, replace it with a random address,
	 */
	if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
	    ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
		eth_hw_addr_random(dev->net);

	/* make MAC addr easily distinguishable from an IP header */
	if (possibly_iphdr(dev->net->dev_addr)) {
		dev->net->dev_addr[0] |= 0x02;	/* set local assignment bit */
		dev->net->dev_addr[0] &= 0xbf;	/* clear "IP" bit */
	}
	dev->net->netdev_ops = &qmi_wwan_netdev_ops;
err:
	return status;
}
Example #4
0
static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
{
	int status = -1;
	u8 *buf = intf->cur_altsetting->extra;
	int len = intf->cur_altsetting->extralen;
	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
	struct usb_cdc_union_desc *cdc_union;
	struct usb_cdc_ether_desc *cdc_ether;
	struct usb_driver *driver = driver_of(intf);
	struct qmi_wwan_state *info = (void *)&dev->data;
	struct usb_cdc_parsed_header hdr;

	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
		      sizeof(struct qmi_wwan_state)));

	/* set up initial state */
	info->control = intf;
	info->data = intf;

	/* and a number of CDC descriptors */
	cdc_parse_cdc_header(&hdr, intf, buf, len);
	cdc_union = hdr.usb_cdc_union_desc;
	cdc_ether = hdr.usb_cdc_ether_desc;

	/* Use separate control and data interfaces if we found a CDC Union */
	if (cdc_union) {
		info->data = usb_ifnum_to_if(dev->udev,
					     cdc_union->bSlaveInterface0);
		if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
		    !info->data) {
			dev_err(&intf->dev,
				"bogus CDC Union: master=%u, slave=%u\n",
				cdc_union->bMasterInterface0,
				cdc_union->bSlaveInterface0);
			goto err;
		}
	}

	/* errors aren't fatal - we can live with the dynamic address */
	if (cdc_ether) {
		dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
		usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
	}

	/* claim data interface and set it up */
	if (info->control != info->data) {
		status = usb_driver_claim_interface(driver, info->data, dev);
		if (status < 0)
			goto err;
	}

	status = qmi_wwan_register_subdriver(dev);
	if (status < 0 && info->control != info->data) {
		usb_set_intfdata(info->data, NULL);
		usb_driver_release_interface(driver, info->data);
	}

	/* Never use the same address on both ends of the link, even if the
	 * buggy firmware told us to. Or, if device is assigned the well-known
	 * buggy firmware MAC address, replace it with a random address,
	 */
	if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
	    ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
		eth_hw_addr_random(dev->net);

	/* make MAC addr easily distinguishable from an IP header */
	if (possibly_iphdr(dev->net->dev_addr)) {
		dev->net->dev_addr[0] |= 0x02;	/* set local assignment bit */
		dev->net->dev_addr[0] &= 0xbf;	/* clear "IP" bit */
	}
	dev->net->netdev_ops = &qmi_wwan_netdev_ops;
err:
	return status;
}
Example #5
0
/* Search EMAC board, allocate space and register it
 */
static int emac_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct emac_board_info *db;
	struct net_device *ndev;
	int ret = 0;
	const char *mac_addr;

	ndev = alloc_etherdev(sizeof(struct emac_board_info));
	if (!ndev) {
		dev_err(&pdev->dev, "could not allocate device.\n");
		return -ENOMEM;
	}

	SET_NETDEV_DEV(ndev, &pdev->dev);

	db = netdev_priv(ndev);
	memset(db, 0, sizeof(*db));

	db->dev = &pdev->dev;
	db->ndev = ndev;
	db->pdev = pdev;
	db->msg_enable = netif_msg_init(debug, EMAC_DEFAULT_MSG_ENABLE);

	spin_lock_init(&db->lock);

	db->membase = of_iomap(np, 0);
	if (!db->membase) {
		dev_err(&pdev->dev, "failed to remap registers\n");
		ret = -ENOMEM;
		goto out;
	}

	/* fill in parameters for net-dev structure */
	ndev->base_addr = (unsigned long)db->membase;
	ndev->irq = irq_of_parse_and_map(np, 0);
	if (ndev->irq == -ENXIO) {
		netdev_err(ndev, "No irq resource\n");
		ret = ndev->irq;
		goto out_iounmap;
	}

	db->clk = devm_clk_get(&pdev->dev, NULL);
	if (IS_ERR(db->clk)) {
		ret = PTR_ERR(db->clk);
		goto out_iounmap;
	}

	ret = clk_prepare_enable(db->clk);
	if (ret) {
		dev_err(&pdev->dev, "Error couldn't enable clock (%d)\n", ret);
		goto out_iounmap;
	}

	ret = sunxi_sram_claim(&pdev->dev);
	if (ret) {
		dev_err(&pdev->dev, "Error couldn't map SRAM to device\n");
		goto out_clk_disable_unprepare;
	}

	db->phy_node = of_parse_phandle(np, "phy", 0);
	if (!db->phy_node) {
		dev_err(&pdev->dev, "no associated PHY\n");
		ret = -ENODEV;
		goto out_release_sram;
	}

	/* Read MAC-address from DT */
	mac_addr = of_get_mac_address(np);
	if (mac_addr)
		memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);

	/* Check if the MAC address is valid, if not get a random one */
	if (!is_valid_ether_addr(ndev->dev_addr)) {
		eth_hw_addr_random(ndev);
		dev_warn(&pdev->dev, "using random MAC address %pM\n",
			 ndev->dev_addr);
	}

	db->emacrx_completed_flag = 1;
	emac_powerup(ndev);
	emac_reset(db);

	ndev->netdev_ops = &emac_netdev_ops;
	ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
	ndev->ethtool_ops = &emac_ethtool_ops;

	platform_set_drvdata(pdev, ndev);

	/* Carrier starts down, phylib will bring it up */
	netif_carrier_off(ndev);

	ret = register_netdev(ndev);
	if (ret) {
		dev_err(&pdev->dev, "Registering netdev failed!\n");
		ret = -ENODEV;
		goto out_release_sram;
	}

	dev_info(&pdev->dev, "%s: at %p, IRQ %d MAC: %pM\n",
		 ndev->name, db->membase, ndev->irq, ndev->dev_addr);

	return 0;

out_release_sram:
	sunxi_sram_release(&pdev->dev);
out_clk_disable_unprepare:
	clk_disable_unprepare(db->clk);
out_iounmap:
	iounmap(db->membase);
out:
	dev_err(db->dev, "not found (%d).\n", ret);

	free_netdev(ndev);

	return ret;
}
Example #6
0
static void __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev)
{
	struct sonic_local *lp = netdev_priv(dev);
	const int prom_addr = ONBOARD_SONIC_PROM_BASE;
	unsigned short val;

	/*
	 * On NuBus boards we can sometimes look in the ROM resources.
	 * No such luck for comm-slot/onboard.
	 * On the PowerBook 520, the PROM base address is a mystery.
	 */
	if (hwreg_present((void *)prom_addr)) {
		int i;

		for (i = 0; i < 6; i++)
			dev->dev_addr[i] = SONIC_READ_PROM(i);
		if (!INVALID_MAC(dev->dev_addr))
			return;

		/*
		 * Most of the time, the address is bit-reversed. The NetBSD
		 * source has a rather long and detailed historical account of
		 * why this is so.
		 */
		bit_reverse_addr(dev->dev_addr);
		if (!INVALID_MAC(dev->dev_addr))
			return;

		/*
		 * If we still have what seems to be a bogus address, we'll
		 * look in the CAM. The top entry should be ours.
		 */
		printk(KERN_WARNING "macsonic: MAC address in PROM seems "
		                    "to be invalid, trying CAM\n");
	} else {
		printk(KERN_WARNING "macsonic: cannot read MAC address from "
		                    "PROM, trying CAM\n");
	}

	/* This only works if MacOS has already initialized the card. */

	SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
	SONIC_WRITE(SONIC_CEP, 15);

	val = SONIC_READ(SONIC_CAP2);
	dev->dev_addr[5] = val >> 8;
	dev->dev_addr[4] = val & 0xff;
	val = SONIC_READ(SONIC_CAP1);
	dev->dev_addr[3] = val >> 8;
	dev->dev_addr[2] = val & 0xff;
	val = SONIC_READ(SONIC_CAP0);
	dev->dev_addr[1] = val >> 8;
	dev->dev_addr[0] = val & 0xff;

	if (!INVALID_MAC(dev->dev_addr))
		return;

	/* Still nonsense ... messed up someplace! */

	printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
	                    "seems invalid, will use a random MAC\n");
	eth_hw_addr_random(dev);
}
Example #7
0
/******************************************************************************
 * struct platform_driver functions
 *****************************************************************************/
static int ftmac100_probe(struct platform_device *pdev)
{
	struct resource *res;
	int irq;
	struct net_device *netdev;
	struct ftmac100 *priv;
	int err;

	if (!pdev)
		return -ENODEV;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res)
		return -ENXIO;

	irq = platform_get_irq(pdev, 0);
	if (irq < 0)
		return irq;

	/* setup net_device */
	netdev = alloc_etherdev(sizeof(*priv));
	if (!netdev) {
		err = -ENOMEM;
		goto err_alloc_etherdev;
	}

	SET_NETDEV_DEV(netdev, &pdev->dev);
	netdev->ethtool_ops = &ftmac100_ethtool_ops;
	netdev->netdev_ops = &ftmac100_netdev_ops;

	platform_set_drvdata(pdev, netdev);

	/* setup private data */
	priv = netdev_priv(netdev);
	priv->netdev = netdev;
	priv->dev = &pdev->dev;

	spin_lock_init(&priv->tx_lock);

	/* initialize NAPI */
	netif_napi_add(netdev, &priv->napi, ftmac100_poll, 64);

	/* map io memory */
	priv->res = request_mem_region(res->start, resource_size(res),
				       dev_name(&pdev->dev));
	if (!priv->res) {
		dev_err(&pdev->dev, "Could not reserve memory region\n");
		err = -ENOMEM;
		goto err_req_mem;
	}

	priv->base = ioremap(res->start, resource_size(res));
	if (!priv->base) {
		dev_err(&pdev->dev, "Failed to ioremap ethernet registers\n");
		err = -EIO;
		goto err_ioremap;
	}

	priv->irq = irq;

	/* initialize struct mii_if_info */
	priv->mii.phy_id	= 0;
	priv->mii.phy_id_mask	= 0x1f;
	priv->mii.reg_num_mask	= 0x1f;
	priv->mii.dev		= netdev;
	priv->mii.mdio_read	= ftmac100_mdio_read;
	priv->mii.mdio_write	= ftmac100_mdio_write;

	/* register network device */
	err = register_netdev(netdev);
	if (err) {
		dev_err(&pdev->dev, "Failed to register netdev\n");
		goto err_register_netdev;
	}

	netdev_info(netdev, "irq %d, mapped at %p\n", priv->irq, priv->base);

	if (!is_valid_ether_addr(netdev->dev_addr)) {
		eth_hw_addr_random(netdev);
		netdev_info(netdev, "generated random MAC address %pM\n",
			    netdev->dev_addr);
	}

	return 0;

err_register_netdev:
	iounmap(priv->base);
err_ioremap:
	release_resource(priv->res);
err_req_mem:
	netif_napi_del(&priv->napi);
	free_netdev(netdev);
err_alloc_etherdev:
	return err;
}
Example #8
0
int bgmac_phy_connect_direct(struct bgmac *bgmac)
{
	struct fixed_phy_status fphy_status = {
		.link = 1,
		.speed = SPEED_1000,
		.duplex = DUPLEX_FULL,
	};
	struct phy_device *phy_dev;
	int err;

	phy_dev = fixed_phy_register(PHY_POLL, &fphy_status, -1, NULL);
	if (!phy_dev || IS_ERR(phy_dev)) {
		dev_err(bgmac->dev, "Failed to register fixed PHY device\n");
		return -ENODEV;
	}

	err = phy_connect_direct(bgmac->net_dev, phy_dev, bgmac_adjust_link,
				 PHY_INTERFACE_MODE_MII);
	if (err) {
		dev_err(bgmac->dev, "Connecting PHY failed\n");
		return err;
	}

	return err;
}
EXPORT_SYMBOL_GPL(bgmac_phy_connect_direct);

struct bgmac *bgmac_alloc(struct device *dev)
{
	struct net_device *net_dev;
	struct bgmac *bgmac;

	/* Allocation and references */
	net_dev = devm_alloc_etherdev(dev, sizeof(*bgmac));
	if (!net_dev)
		return NULL;

	net_dev->netdev_ops = &bgmac_netdev_ops;
	net_dev->ethtool_ops = &bgmac_ethtool_ops;

	bgmac = netdev_priv(net_dev);
	bgmac->dev = dev;
	bgmac->net_dev = net_dev;

	return bgmac;
}
EXPORT_SYMBOL_GPL(bgmac_alloc);

int bgmac_enet_probe(struct bgmac *bgmac)
{
	struct net_device *net_dev = bgmac->net_dev;
	int err;

	net_dev->irq = bgmac->irq;
	SET_NETDEV_DEV(net_dev, bgmac->dev);
	dev_set_drvdata(bgmac->dev, bgmac);

	if (!is_valid_ether_addr(net_dev->dev_addr)) {
		dev_err(bgmac->dev, "Invalid MAC addr: %pM\n",
			net_dev->dev_addr);
		eth_hw_addr_random(net_dev);
		dev_warn(bgmac->dev, "Using random MAC: %pM\n",
			 net_dev->dev_addr);
	}

	/* This (reset &) enable is not preset in specs or reference driver but
	 * Broadcom does it in arch PCI code when enabling fake PCI device.
	 */
	bgmac_clk_enable(bgmac, 0);

	/* This seems to be fixing IRQ by assigning OOB #6 to the core */
	if (!(bgmac->feature_flags & BGMAC_FEAT_IDM_MASK)) {
		if (bgmac->feature_flags & BGMAC_FEAT_IRQ_ID_OOB_6)
			bgmac_idm_write(bgmac, BCMA_OOB_SEL_OUT_A30, 0x86);
	}

	bgmac_chip_reset(bgmac);

	err = bgmac_dma_alloc(bgmac);
	if (err) {
		dev_err(bgmac->dev, "Unable to alloc memory for DMA\n");
		goto err_out;
	}

	bgmac->int_mask = BGMAC_IS_ERRMASK | BGMAC_IS_RX | BGMAC_IS_TX_MASK;
	if (bcm47xx_nvram_getenv("et0_no_txint", NULL, 0) == 0)
		bgmac->int_mask &= ~BGMAC_IS_TX_MASK;

	netif_napi_add(net_dev, &bgmac->napi, bgmac_poll, BGMAC_WEIGHT);

	err = bgmac_phy_connect(bgmac);
	if (err) {
		dev_err(bgmac->dev, "Cannot connect to phy\n");
		goto err_dma_free;
	}

	net_dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
	net_dev->hw_features = net_dev->features;
	net_dev->vlan_features = net_dev->features;

	err = register_netdev(bgmac->net_dev);
	if (err) {
		dev_err(bgmac->dev, "Cannot register net device\n");
		goto err_phy_disconnect;
	}

	netif_carrier_off(net_dev);

	return 0;

err_phy_disconnect:
	phy_disconnect(net_dev->phydev);
err_dma_free:
	bgmac_dma_free(bgmac);
err_out:

	return err;
}
EXPORT_SYMBOL_GPL(bgmac_enet_probe);

void bgmac_enet_remove(struct bgmac *bgmac)
{
	unregister_netdev(bgmac->net_dev);
	phy_disconnect(bgmac->net_dev->phydev);
	netif_napi_del(&bgmac->napi);
	bgmac_dma_free(bgmac);
	free_netdev(bgmac->net_dev);
}
Example #9
0
static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
{
	int status = -1;
	u8 *buf = intf->cur_altsetting->extra;
	int len = intf->cur_altsetting->extralen;
	struct usb_interface_descriptor *desc = &intf->cur_altsetting->desc;
	struct usb_cdc_union_desc *cdc_union;
	struct usb_cdc_ether_desc *cdc_ether;
	struct usb_driver *driver = driver_of(intf);
	struct qmi_wwan_state *info = (void *)&dev->data;
	struct usb_cdc_parsed_header hdr;

	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
		      sizeof(struct qmi_wwan_state)));

	/* set up initial state */
	info->control = intf;
	info->data = intf;

	/* and a number of CDC descriptors */
	cdc_parse_cdc_header(&hdr, intf, buf, len);
	cdc_union = hdr.usb_cdc_union_desc;
	cdc_ether = hdr.usb_cdc_ether_desc;

	/* Use separate control and data interfaces if we found a CDC Union */
	if (cdc_union) {
		info->data = usb_ifnum_to_if(dev->udev,
					     cdc_union->bSlaveInterface0);
		if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
		    !info->data) {
			dev_err(&intf->dev,
				"bogus CDC Union: master=%u, slave=%u\n",
				cdc_union->bMasterInterface0,
				cdc_union->bSlaveInterface0);

			/* ignore and continue... */
			cdc_union = NULL;
			info->data = intf;
		}
	}

	/* errors aren't fatal - we can live with the dynamic address */
	if (cdc_ether) {
		dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
		usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
	}

	/* claim data interface and set it up */
	if (info->control != info->data) {
		status = usb_driver_claim_interface(driver, info->data, dev);
		if (status < 0)
			goto err;
	}

	status = qmi_wwan_register_subdriver(dev);
	if (status < 0 && info->control != info->data) {
		usb_set_intfdata(info->data, NULL);
		usb_driver_release_interface(driver, info->data);
	}

	/* disabling remote wakeup on MDM9x30 devices has the same
	 * effect as clearing DTR. The device will not respond to QMI
	 * requests until we set DTR again.  This is similar to a
	 * QMI_CTL SYNC request, clearing a lot of firmware state
	 * including the client ID allocations.
	 *
	 * Our usage model allows a session to span multiple
	 * open/close events, so we must prevent the firmware from
	 * clearing out state the clients might need.
	 *
	 * MDM9x30 is the first QMI chipset with USB3 support. Abuse
	 * this fact to enable the quirk.
	 */
	if (le16_to_cpu(dev->udev->descriptor.bcdUSB) >= 0x0201) {
		qmi_wwan_manage_power(dev, 1);
		qmi_wwan_change_dtr(dev, true);
	}

	/* Never use the same address on both ends of the link, even if the
	 * buggy firmware told us to. Or, if device is assigned the well-known
	 * buggy firmware MAC address, replace it with a random address,
	 */
	if (ether_addr_equal(dev->net->dev_addr, default_modem_addr) ||
	    ether_addr_equal(dev->net->dev_addr, buggy_fw_addr))
		eth_hw_addr_random(dev->net);

	/* make MAC addr easily distinguishable from an IP header */
	if (possibly_iphdr(dev->net->dev_addr)) {
		dev->net->dev_addr[0] |= 0x02;	/* set local assignment bit */
		dev->net->dev_addr[0] &= 0xbf;	/* clear "IP" bit */
	}
	dev->net->netdev_ops = &qmi_wwan_netdev_ops;
	dev->net->sysfs_groups[0] = &qmi_wwan_sysfs_attr_group;
err:
	return status;
}
Example #10
0
static int
qca_spi_probe(struct spi_device *spi_device)
{
	struct qcaspi *qca = NULL;
	struct net_device *qcaspi_devs = NULL;
	u8 legacy_mode = 0;
	u16 signature;
	const char *mac;

	if (!spi_device->dev.of_node) {
		dev_err(&spi_device->dev, "Missing device tree\n");
		return -EINVAL;
	}

	legacy_mode = of_property_read_bool(spi_device->dev.of_node,
					    "qca,legacy-mode");

	if (qcaspi_clkspeed == 0) {
		if (spi_device->max_speed_hz)
			qcaspi_clkspeed = spi_device->max_speed_hz;
		else
			qcaspi_clkspeed = QCASPI_CLK_SPEED;
	}

	if ((qcaspi_clkspeed < QCASPI_CLK_SPEED_MIN) ||
	    (qcaspi_clkspeed > QCASPI_CLK_SPEED_MAX)) {
		dev_info(&spi_device->dev, "Invalid clkspeed: %d\n",
			 qcaspi_clkspeed);
		return -EINVAL;
	}

	if ((qcaspi_burst_len < QCASPI_BURST_LEN_MIN) ||
	    (qcaspi_burst_len > QCASPI_BURST_LEN_MAX)) {
		dev_info(&spi_device->dev, "Invalid burst len: %d\n",
			 qcaspi_burst_len);
		return -EINVAL;
	}

	if ((qcaspi_pluggable < QCASPI_PLUGGABLE_MIN) ||
	    (qcaspi_pluggable > QCASPI_PLUGGABLE_MAX)) {
		dev_info(&spi_device->dev, "Invalid pluggable: %d\n",
			 qcaspi_pluggable);
		return -EINVAL;
	}

	dev_info(&spi_device->dev, "ver=%s, clkspeed=%d, burst_len=%d, pluggable=%d\n",
		 QCASPI_DRV_VERSION,
		 qcaspi_clkspeed,
		 qcaspi_burst_len,
		 qcaspi_pluggable);

	spi_device->mode = SPI_MODE_3;
	spi_device->max_speed_hz = qcaspi_clkspeed;
	if (spi_setup(spi_device) < 0) {
		dev_err(&spi_device->dev, "Unable to setup SPI device\n");
		return -EFAULT;
	}

	qcaspi_devs = alloc_etherdev(sizeof(struct qcaspi));
	if (!qcaspi_devs)
		return -ENOMEM;

	qcaspi_netdev_setup(qcaspi_devs);

	qca = netdev_priv(qcaspi_devs);
	if (!qca) {
		free_netdev(qcaspi_devs);
		dev_err(&spi_device->dev, "Fail to retrieve private structure\n");
		return -ENOMEM;
	}
	qca->net_dev = qcaspi_devs;
	qca->spi_dev = spi_device;
	qca->legacy_mode = legacy_mode;

	mac = of_get_mac_address(spi_device->dev.of_node);

	if (mac)
		ether_addr_copy(qca->net_dev->dev_addr, mac);

	if (!is_valid_ether_addr(qca->net_dev->dev_addr)) {
		eth_hw_addr_random(qca->net_dev);
		dev_info(&spi_device->dev, "Using random MAC address: %pM\n",
			 qca->net_dev->dev_addr);
	}

	netif_carrier_off(qca->net_dev);

	if (!qcaspi_pluggable) {
		qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);
		qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);

		if (signature != QCASPI_GOOD_SIGNATURE) {
			dev_err(&spi_device->dev, "Invalid signature (0x%04X)\n",
				signature);
			free_netdev(qcaspi_devs);
			return -EFAULT;
		}
	}

	if (register_netdev(qcaspi_devs)) {
		dev_info(&spi_device->dev, "Unable to register net device %s\n",
			 qcaspi_devs->name);
		free_netdev(qcaspi_devs);
		return -EFAULT;
	}

	spi_set_drvdata(spi_device, qcaspi_devs);

	qcaspi_init_device_debugfs(qca);

	return 0;
}
Example #11
0
static s32 nps_enet_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct net_device *ndev;
	struct nps_enet_priv *priv;
	s32 err = 0;
	const char *mac_addr;
	struct resource *res_regs;

	if (!dev->of_node)
		return -ENODEV;

	ndev = alloc_etherdev(sizeof(struct nps_enet_priv));
	if (!ndev)
		return -ENOMEM;

	platform_set_drvdata(pdev, ndev);
	SET_NETDEV_DEV(ndev, dev);
	priv = netdev_priv(ndev);

	/* The EZ NET specific entries in the device structure. */
	ndev->netdev_ops = &nps_netdev_ops;
	ndev->watchdog_timeo = (400 * HZ / 1000);
	/* FIXME :: no multicast support yet */
	ndev->flags &= ~IFF_MULTICAST;

	res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	priv->regs_base = devm_ioremap_resource(dev, res_regs);
	if (IS_ERR(priv->regs_base)) {
		err = PTR_ERR(priv->regs_base);
		goto out_netdev;
	}
	dev_dbg(dev, "Registers base address is 0x%p\n", priv->regs_base);

	/* set kernel MAC address to dev */
	mac_addr = of_get_mac_address(dev->of_node);
	if (mac_addr)
		ether_addr_copy(ndev->dev_addr, mac_addr);
	else
		eth_hw_addr_random(ndev);

	/* Get IRQ number */
	priv->irq = platform_get_irq(pdev, 0);
	if (!priv->irq) {
		dev_err(dev, "failed to retrieve <irq Rx-Tx> value from device tree\n");
		err = -ENODEV;
		goto out_netdev;
	}

	netif_napi_add(ndev, &priv->napi, nps_enet_poll,
		       NPS_ENET_NAPI_POLL_WEIGHT);

	/* Register the driver. Should be the last thing in probe */
	err = register_netdev(ndev);
	if (err) {
		dev_err(dev, "Failed to register ndev for %s, err = 0x%08x\n",
			ndev->name, (s32)err);
		goto out_netif_api;
	}

	dev_info(dev, "(rx/tx=%d)\n", priv->irq);
	return 0;

out_netif_api:
	netif_napi_del(&priv->napi);
out_netdev:
	if (err)
		free_netdev(ndev);

	return err;
}
Example #12
0
static int octeon_mgmt_probe(struct platform_device *pdev)
{
	struct net_device *netdev;
	struct octeon_mgmt *p;
	const __be32 *data;
	const u8 *mac;
	struct resource *res_mix;
	struct resource *res_agl;
	struct resource *res_agl_prt_ctl;
	int len;
	int result;

	netdev = alloc_etherdev(sizeof(struct octeon_mgmt));
	if (netdev == NULL)
		return -ENOMEM;

	SET_NETDEV_DEV(netdev, &pdev->dev);

	platform_set_drvdata(pdev, netdev);
	p = netdev_priv(netdev);
	netif_napi_add(netdev, &p->napi, octeon_mgmt_napi_poll,
		       OCTEON_MGMT_NAPI_WEIGHT);

	p->netdev = netdev;
	p->dev = &pdev->dev;
	p->has_rx_tstamp = false;

	data = of_get_property(pdev->dev.of_node, "cell-index", &len);
	if (data && len == sizeof(*data)) {
		p->port = be32_to_cpup(data);
	} else {
		dev_err(&pdev->dev, "no 'cell-index' property\n");
		result = -ENXIO;
		goto err;
	}

	snprintf(netdev->name, IFNAMSIZ, "mgmt%d", p->port);

	result = platform_get_irq(pdev, 0);
	if (result < 0)
		goto err;

	p->irq = result;

	res_mix = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (res_mix == NULL) {
		dev_err(&pdev->dev, "no 'reg' resource\n");
		result = -ENXIO;
		goto err;
	}

	res_agl = platform_get_resource(pdev, IORESOURCE_MEM, 1);
	if (res_agl == NULL) {
		dev_err(&pdev->dev, "no 'reg' resource\n");
		result = -ENXIO;
		goto err;
	}

	res_agl_prt_ctl = platform_get_resource(pdev, IORESOURCE_MEM, 3);
	if (res_agl_prt_ctl == NULL) {
		dev_err(&pdev->dev, "no 'reg' resource\n");
		result = -ENXIO;
		goto err;
	}

	p->mix_phys = res_mix->start;
	p->mix_size = resource_size(res_mix);
	p->agl_phys = res_agl->start;
	p->agl_size = resource_size(res_agl);
	p->agl_prt_ctl_phys = res_agl_prt_ctl->start;
	p->agl_prt_ctl_size = resource_size(res_agl_prt_ctl);


	if (!devm_request_mem_region(&pdev->dev, p->mix_phys, p->mix_size,
				     res_mix->name)) {
		dev_err(&pdev->dev, "request_mem_region (%s) failed\n",
			res_mix->name);
		result = -ENXIO;
		goto err;
	}

	if (!devm_request_mem_region(&pdev->dev, p->agl_phys, p->agl_size,
				     res_agl->name)) {
		result = -ENXIO;
		dev_err(&pdev->dev, "request_mem_region (%s) failed\n",
			res_agl->name);
		goto err;
	}

	if (!devm_request_mem_region(&pdev->dev, p->agl_prt_ctl_phys,
				     p->agl_prt_ctl_size, res_agl_prt_ctl->name)) {
		result = -ENXIO;
		dev_err(&pdev->dev, "request_mem_region (%s) failed\n",
			res_agl_prt_ctl->name);
		goto err;
	}

	p->mix = (u64)devm_ioremap(&pdev->dev, p->mix_phys, p->mix_size);
	p->agl = (u64)devm_ioremap(&pdev->dev, p->agl_phys, p->agl_size);
	p->agl_prt_ctl = (u64)devm_ioremap(&pdev->dev, p->agl_prt_ctl_phys,
					   p->agl_prt_ctl_size);
	spin_lock_init(&p->lock);

	skb_queue_head_init(&p->tx_list);
	skb_queue_head_init(&p->rx_list);
	tasklet_init(&p->tx_clean_tasklet,
		     octeon_mgmt_clean_tx_tasklet, (unsigned long)p);

	netdev->priv_flags |= IFF_UNICAST_FLT;

	netdev->netdev_ops = &octeon_mgmt_ops;
	netdev->ethtool_ops = &octeon_mgmt_ethtool_ops;

	mac = of_get_mac_address(pdev->dev.of_node);

	if (mac)
		memcpy(netdev->dev_addr, mac, ETH_ALEN);
	else
		eth_hw_addr_random(netdev);

	p->phy_np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);

	result = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
	if (result)
		goto err;

	netif_carrier_off(netdev);
	result = register_netdev(netdev);
	if (result)
		goto err;

	dev_info(&pdev->dev, "Version " DRV_VERSION "\n");
	return 0;

err:
	free_netdev(netdev);
	return result;
}
Example #13
0
/* Search EMAC board, allocate space and register it
 */
static int emac_probe(struct vmm_device *pdev,
			const struct vmm_devtree_nodeid *devid)
{
	struct device_node *np = pdev->node;
	struct emac_board_info *db;
	struct net_device *ndev;
	int ret = 0;
	const char *mac_addr;
	virtual_addr_t  reg_addr;

	ndev = alloc_etherdev(sizeof(struct emac_board_info));
	if (!ndev) {
		dev_err(pdev, "%s: could not allocate device.\n", __func__);
		return -ENOMEM;
	}

	strlcpy(ndev->name, pdev->name, sizeof(ndev->name));

	SET_NETDEV_DEV(ndev, pdev);

	db = netdev_priv(ndev);
	memset(db, 0, sizeof(*db));

	db->ndev = ndev;
	db->pdev = pdev;

	spin_lock_init(&db->lock);

	if ((ret = vmm_devtree_request_regmap(np, &reg_addr, 0,
					      "Sun4i EMAC"))) {
		vmm_printf("%s: Failed to ioreamp\n", __func__);
		return -ENOMEM;
	}

	db->membase = (void *) reg_addr;

	/* fill in parameters for net-dev structure */
	ndev->base_addr = (unsigned long)db->membase;

	ret = vmm_devtree_irq_get(np, &ndev->irq, 0);
	if (ret) {
		vmm_printf("%s: No irq resource\n", __func__);
		goto out;
	}

	db->clk = clk_get(pdev, NULL);
	if (IS_ERR(db->clk))
		goto out;

	clk_prepare_enable(db->clk);

	db->phy_node = vmm_devtree_parse_phandle(np, "phy", 0);
	if (!db->phy_node) {
		dev_err(pdev, "%s: no associated PHY\n", __func__);
		ret = -ENODEV;
		goto out;
	}

	/* Read MAC-address from DT */
	mac_addr = of_get_mac_address(np);
	if (mac_addr)
		memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);

	/* Check if the MAC address is valid, if not get a random one */
	if (!is_valid_ether_addr(ndev->dev_addr)) {
		eth_hw_addr_random(ndev);
		dev_info(pdev, "using random MAC address: ");
		print_mac_address_fmt(ndev->dev_addr);
	}

	db->emacrx_completed_flag = 1;
	emac_powerup(ndev);
	emac_reset(db);

	ether_setup(ndev);

	ndev->netdev_ops = &emac_netdev_ops;
	ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
	ndev->ethtool_ops = &emac_ethtool_ops;

	platform_set_drvdata(pdev, ndev);

	/* Carrier starts down, phylib will bring it up */
	netif_carrier_off(ndev);

	ret = register_netdev(ndev);
	if (ret) {
		dev_err(pdev, "%s: Registering netdev failed!\n", __func__);
		ret = -ENODEV;
		goto out;
	}

	dev_info(pdev, "%s: at %p, IRQ %d MAC: ",
		 ndev->name, db->membase, ndev->irq);
	print_mac_address_fmt(ndev->dev_addr);

	return 0;

out:
	dev_err(pdev, "%s: not found (%d).\n", __func__, ret);
	free_netdev(ndev);

	return ret;
}
Example #14
0
static int veth_newlink(struct net *src_net, struct net_device *dev,
			 struct nlattr *tb[], struct nlattr *data[])
{
	int err;
	struct net_device *peer;
	struct veth_priv *priv;
	char ifname[IFNAMSIZ];
	struct nlattr *peer_tb[IFLA_MAX + 1], **tbp;
	struct ifinfomsg *ifmp;
	struct net *net;

	/*
	 * create and register peer first
	 */
	if (data != NULL && data[VETH_INFO_PEER] != NULL) {
		struct nlattr *nla_peer;

		nla_peer = data[VETH_INFO_PEER];
		ifmp = nla_data(nla_peer);
		err = nla_parse(peer_tb, IFLA_MAX,
				nla_data(nla_peer) + sizeof(struct ifinfomsg),
				nla_len(nla_peer) - sizeof(struct ifinfomsg),
				ifla_policy);
		if (err < 0)
			return err;

		err = veth_validate(peer_tb, NULL);
		if (err < 0)
			return err;

		tbp = peer_tb;
	} else {
		ifmp = NULL;
		tbp = tb;
	}

	if (tbp[IFLA_IFNAME])
		nla_strlcpy(ifname, tbp[IFLA_IFNAME], IFNAMSIZ);
	else
		snprintf(ifname, IFNAMSIZ, DRV_NAME "%%d");

	net = rtnl_link_get_net(src_net, tbp);
	if (IS_ERR(net))
		return PTR_ERR(net);

	peer = rtnl_create_link(src_net, net, ifname, &veth_link_ops, tbp);
	if (IS_ERR(peer)) {
		put_net(net);
		return PTR_ERR(peer);
	}

	if (tbp[IFLA_ADDRESS] == NULL)
		eth_hw_addr_random(peer);

	if (ifmp && (dev->ifindex != 0))
		peer->ifindex = ifmp->ifi_index;

	err = register_netdevice(peer);
	put_net(net);
	net = NULL;
	if (err < 0)
		goto err_register_peer;

	netif_carrier_off(peer);

	err = rtnl_configure_link(peer, ifmp);
	if (err < 0)
		goto err_configure_peer;

	/*
	 * register dev last
	 *
	 * note, that since we've registered new device the dev's name
	 * should be re-allocated
	 */

	if (tb[IFLA_ADDRESS] == NULL)
		eth_hw_addr_random(dev);

	if (tb[IFLA_IFNAME])
		nla_strlcpy(dev->name, tb[IFLA_IFNAME], IFNAMSIZ);
	else
		snprintf(dev->name, IFNAMSIZ, DRV_NAME "%%d");

	if (strchr(dev->name, '%')) {
		err = dev_alloc_name(dev, dev->name);
		if (err < 0)
			goto err_alloc_name;
	}

	err = register_netdevice(dev);
	if (err < 0)
		goto err_register_dev;

	netif_carrier_off(dev);

	/*
	 * tie the deviced together
	 */

	priv = netdev_priv(dev);
	priv->peer = peer;

	priv = netdev_priv(peer);
	priv->peer = dev;
	return 0;

err_register_dev:
	/* nothing to do */
err_alloc_name:
err_configure_peer:
	unregister_netdevice(peer);
	return err;

err_register_peer:
	free_netdev(peer);
	return err;
}
Example #15
0
static int arc_emac_probe(struct platform_device *pdev)
{
	struct resource res_regs;
	struct device_node *phy_node;
	struct arc_emac_priv *priv;
	struct net_device *ndev;
	const char *mac_addr;
	unsigned int id, clock_frequency, irq;
	int err;

	if (!pdev->dev.of_node)
		return -ENODEV;

	/* Get PHY from device tree */
	phy_node = of_parse_phandle(pdev->dev.of_node, "phy", 0);
	if (!phy_node) {
		dev_err(&pdev->dev, "failed to retrieve phy description from device tree\n");
		return -ENODEV;
	}

	/* Get EMAC registers base address from device tree */
	err = of_address_to_resource(pdev->dev.of_node, 0, &res_regs);
	if (err) {
		dev_err(&pdev->dev, "failed to retrieve registers base from device tree\n");
		return -ENODEV;
	}

	/* Get CPU clock frequency from device tree */
	if (of_property_read_u32(pdev->dev.of_node, "clock-frequency",
				 &clock_frequency)) {
		dev_err(&pdev->dev, "failed to retrieve <clock-frequency> from device tree\n");
		return -EINVAL;
	}

	/* Get IRQ from device tree */
	irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
	if (!irq) {
		dev_err(&pdev->dev, "failed to retrieve <irq> value from device tree\n");
		return -ENODEV;
	}

	ndev = alloc_etherdev(sizeof(struct arc_emac_priv));
	if (!ndev)
		return -ENOMEM;

	platform_set_drvdata(pdev, ndev);
	SET_NETDEV_DEV(ndev, &pdev->dev);

	ndev->netdev_ops = &arc_emac_netdev_ops;
	ndev->ethtool_ops = &arc_emac_ethtool_ops;
	ndev->watchdog_timeo = TX_TIMEOUT;
	/* FIXME :: no multicast support yet */
	ndev->flags &= ~IFF_MULTICAST;

	priv = netdev_priv(ndev);
	priv->dev = &pdev->dev;
	priv->ndev = ndev;

	priv->regs = devm_ioremap_resource(&pdev->dev, &res_regs);
	if (IS_ERR(priv->regs)) {
		err = PTR_ERR(priv->regs);
		goto out;
	}
	dev_dbg(&pdev->dev, "Registers base address is 0x%p\n", priv->regs);

	id = arc_reg_get(priv, R_ID);

	/* Check for EMAC revision 5 or 7, magic number */
	if (!(id == 0x0005fd02 || id == 0x0007fd02)) {
		dev_err(&pdev->dev, "ARC EMAC not detected, id=0x%x\n", id);
		err = -ENODEV;
		goto out;
	}
	dev_info(&pdev->dev, "ARC EMAC detected with id: 0x%x\n", id);

	/* Set poll rate so that it polls every 1 ms */
	arc_reg_set(priv, R_POLLRATE, clock_frequency / 1000000);

	/* Get max speed of operation from device tree */
	if (of_property_read_u32(pdev->dev.of_node, "max-speed",
				 &priv->max_speed)) {
		dev_err(&pdev->dev, "failed to retrieve <max-speed> from device tree\n");
		err = -EINVAL;
		goto out;
	}

	ndev->irq = irq;
	dev_info(&pdev->dev, "IRQ is %d\n", ndev->irq);

	/* Register interrupt handler for device */
	err = devm_request_irq(&pdev->dev, ndev->irq, arc_emac_intr, 0,
			       ndev->name, ndev);
	if (err) {
		dev_err(&pdev->dev, "could not allocate IRQ\n");
		goto out;
	}

	/* Get MAC address from device tree */
	mac_addr = of_get_mac_address(pdev->dev.of_node);

	if (mac_addr)
		memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);
	else
		eth_hw_addr_random(ndev);

	dev_info(&pdev->dev, "MAC address is now %pM\n", ndev->dev_addr);

	/* Do 1 allocation instead of 2 separate ones for Rx and Tx BD rings */
	priv->rxbd = dmam_alloc_coherent(&pdev->dev, RX_RING_SZ + TX_RING_SZ,
					 &priv->rxbd_dma, GFP_KERNEL);

	if (!priv->rxbd) {
		dev_err(&pdev->dev, "failed to allocate data buffers\n");
		err = -ENOMEM;
		goto out;
	}

	priv->txbd = priv->rxbd + RX_BD_NUM;

	priv->txbd_dma = priv->rxbd_dma + RX_RING_SZ;
	dev_dbg(&pdev->dev, "EMAC Device addr: Rx Ring [0x%x], Tx Ring[%x]\n",
		(unsigned int)priv->rxbd_dma, (unsigned int)priv->txbd_dma);

	err = arc_mdio_probe(pdev, priv);
	if (err) {
		dev_err(&pdev->dev, "failed to probe MII bus\n");
		goto out;
	}

	priv->phy_dev = of_phy_connect(ndev, phy_node, arc_emac_adjust_link, 0,
				       PHY_INTERFACE_MODE_MII);
	if (!priv->phy_dev) {
		dev_err(&pdev->dev, "of_phy_connect() failed\n");
		err = -ENODEV;
		goto out;
	}

	dev_info(&pdev->dev, "connected to %s phy with id 0x%x\n",
		 priv->phy_dev->drv->name, priv->phy_dev->phy_id);

	netif_napi_add(ndev, &priv->napi, arc_emac_poll, ARC_EMAC_NAPI_WEIGHT);

	err = register_netdev(ndev);
	if (err) {
		netif_napi_del(&priv->napi);
		dev_err(&pdev->dev, "failed to register network device\n");
		goto out;
	}

	return 0;

out:
	free_netdev(ndev);
	return err;
}
Example #16
0
File: main.c Project: krzk/linux
static int
nfp_flower_spawn_vnic_reprs(struct nfp_app *app,
			    enum nfp_flower_cmsg_port_vnic_type vnic_type,
			    enum nfp_repr_type repr_type, unsigned int cnt)
{
	u8 nfp_pcie = nfp_cppcore_pcie_unit(app->pf->cpp);
	struct nfp_flower_priv *priv = app->priv;
	atomic_t *replies = &priv->reify_replies;
	struct nfp_flower_repr_priv *repr_priv;
	enum nfp_port_type port_type;
	struct nfp_repr *nfp_repr;
	struct nfp_reprs *reprs;
	int i, err, reify_cnt;
	const u8 queue = 0;

	port_type = repr_type == NFP_REPR_TYPE_PF ? NFP_PORT_PF_PORT :
						    NFP_PORT_VF_PORT;

	reprs = nfp_reprs_alloc(cnt);
	if (!reprs)
		return -ENOMEM;

	for (i = 0; i < cnt; i++) {
		struct net_device *repr;
		struct nfp_port *port;
		u32 port_id;

		repr = nfp_repr_alloc(app);
		if (!repr) {
			err = -ENOMEM;
			goto err_reprs_clean;
		}

		repr_priv = kzalloc(sizeof(*repr_priv), GFP_KERNEL);
		if (!repr_priv) {
			err = -ENOMEM;
			goto err_reprs_clean;
		}

		nfp_repr = netdev_priv(repr);
		nfp_repr->app_priv = repr_priv;

		/* For now we only support 1 PF */
		WARN_ON(repr_type == NFP_REPR_TYPE_PF && i);

		port = nfp_port_alloc(app, port_type, repr);
		if (IS_ERR(port)) {
			err = PTR_ERR(port);
			nfp_repr_free(repr);
			goto err_reprs_clean;
		}
		if (repr_type == NFP_REPR_TYPE_PF) {
			port->pf_id = i;
			port->vnic = priv->nn->dp.ctrl_bar;
		} else {
			port->pf_id = 0;
			port->vf_id = i;
			port->vnic =
				app->pf->vf_cfg_mem + i * NFP_NET_CFG_BAR_SZ;
		}

		eth_hw_addr_random(repr);

		port_id = nfp_flower_cmsg_pcie_port(nfp_pcie, vnic_type,
						    i, queue);
		err = nfp_repr_init(app, repr,
				    port_id, port, priv->nn->dp.netdev);
		if (err) {
			nfp_port_free(port);
			nfp_repr_free(repr);
			goto err_reprs_clean;
		}

		RCU_INIT_POINTER(reprs->reprs[i], repr);
		nfp_info(app->cpp, "%s%d Representor(%s) created\n",
			 repr_type == NFP_REPR_TYPE_PF ? "PF" : "VF", i,
			 repr->name);
	}

	nfp_app_reprs_set(app, repr_type, reprs);

	atomic_set(replies, 0);
	reify_cnt = nfp_flower_reprs_reify(app, repr_type, true);
	if (reify_cnt < 0) {
		err = reify_cnt;
		nfp_warn(app->cpp, "Failed to notify firmware about repr creation\n");
		goto err_reprs_remove;
	}

	err = nfp_flower_wait_repr_reify(app, replies, reify_cnt);
	if (err)
		goto err_reprs_remove;

	return 0;
err_reprs_remove:
	reprs = nfp_app_reprs_set(app, repr_type, NULL);
err_reprs_clean:
	nfp_reprs_clean_and_free(app, reprs);
	return err;
}