Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from Davic Miller:

 1) Support busy polling generically, for all NAPI drivers.  From Eric
    Dumazet.

 2) Add byte/packet counter support to nft_ct, from Floriani Westphal.

 3) Add RSS/XPS support to mvneta driver, from Gregory Clement.

 4) Implement IPV6_HDRINCL socket option for raw sockets, from Hannes
    Frederic Sowa.

 5) Add support for T6 adapter to cxgb4 driver, from Hariprasad Shenai.

 6) Add support for VLAN device bridging to mlxsw switch driver, from
    Ido Schimmel.

 7) Add driver for Netronome NFP4000/NFP6000, from Jakub Kicinski.

 8) Provide hwmon interface to mlxsw switch driver, from Jiri Pirko.

 9) Reorganize wireless drivers into per-vendor directories just like we
    do for ethernet drivers.  From Kalle Valo.

10) Provide a way for administrators "destroy" connected sockets via the
    SOCK_DESTROY socket netlink diag operation.  From Lorenzo Colitti.

11) Add support to add/remove multicast routes via netlink, from Nikolay
    Aleksandrov.

12) Make TCP keepalive settings per-namespace, from Nikolay Borisov.

13) Add forwarding and packet duplication facilities to nf_tables, from
    Pablo Neira Ayuso.

14) Dead route support in MPLS, from Roopa Prabhu.

15) TSO support for thunderx chips, from Sunil Goutham.

16) Add driver for IBM's System i/p VNIC protocol, from Thomas Falcon.

17) Rationalize, consolidate, and more completely document the checksum
    offloading facilities in the networking stack.  From Tom Herbert.

18) Support aborting an ongoing scan in mac80211/cfg80211, from
    Vidyullatha Kanchanapally.

19) Use per-bucket spinlock for bpf hash facility, from Tom Leiming.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1375 commits)
  net: bnxt: always return values from _bnxt_get_max_rings
  net: bpf: reject invalid shifts
  phonet: properly unshare skbs in phonet_rcv()
  dwc_eth_qos: Fix dma address for multi-fragment skbs
  phy: remove an unneeded condition
  mdio: remove an unneed condition
  mdio_bus: NULL dereference on allocation error
  net: Fix typo in netdev_intersect_features
  net: freescale: mac-fec: Fix build error from phy_device API change
  net: freescale: ucc_geth: Fix build error from phy_device API change
  bonding: Prevent IPv6 link local address on enslaved devices
  IB/mlx5: Add flow steering support
  net/mlx5_core: Export flow steering API
  net/mlx5_core: Make ipv4/ipv6 location more clear
  net/mlx5_core: Enable flow steering support for the IB driver
  net/mlx5_core: Initialize namespaces only when supported by device
  net/mlx5_core: Set priority attributes
  net/mlx5_core: Connect flow tables
  net/mlx5_core: Introduce modify flow table command
  net/mlx5_core: Managing root flow table
  ...

1 files changed, 459 insertions, 0 deletions

diff --git a/drivers/net/wireless/intersil/hostap/hostap_pci.c b/drivers/net/wireless/intersil/hostap/hostap_pci.c
new file mode 100644
index 000000000000..c864ef4b0015
--- /dev/null
+++ b/drivers/net/wireless/intersil/hostap/hostap_pci.c
@@ -0,0 +1,459 @@
+#define PRISM2_PCI
+
+/* Host AP driver's support for Intersil Prism2.5 PCI cards is based on
+ * driver patches from Reyk Floeter <reyk@vantronix.net> and
+ * Andy Warner <andyw@pobox.com> */
+
+#include <linux/module.h>
+#include <linux/if.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/wireless.h>
+#include <net/iw_handler.h>
+
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+
+#include "hostap_wlan.h"
+
+
+static char *dev_info = "hostap_pci";
+
+
+MODULE_AUTHOR("Jouni Malinen");
+MODULE_DESCRIPTION("Support for Intersil Prism2.5-based 802.11 wireless LAN "
+		   "PCI cards.");
+MODULE_SUPPORTED_DEVICE("Intersil Prism2.5-based WLAN PCI cards");
+MODULE_LICENSE("GPL");
+
+
+/* struct local_info::hw_priv */
+struct hostap_pci_priv {
+	void __iomem *mem_start;
+};
+
+
+/* FIX: do we need mb/wmb/rmb with memory operations? */
+
+
+static const struct pci_device_id prism2_pci_id_table[] = {
+	/* Intersil Prism3 ISL3872 11Mb/s WLAN Controller */
+	{ 0x1260, 0x3872, PCI_ANY_ID, PCI_ANY_ID },
+	/* Intersil Prism2.5 ISL3874 11Mb/s WLAN Controller */
+	{ 0x1260, 0x3873, PCI_ANY_ID, PCI_ANY_ID },
+	/* Samsung MagicLAN SWL-2210P */
+	{ 0x167d, 0xa000, PCI_ANY_ID, PCI_ANY_ID },
+	{ 0 }
+};
+
+
+#ifdef PRISM2_IO_DEBUG
+
+static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v)
+{
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+	local_info_t *local;
+	unsigned long flags;
+
+	iface = netdev_priv(dev);
+	local = iface->local;
+	hw_priv = local->hw_priv;
+
+	spin_lock_irqsave(&local->lock, flags);
+	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v);
+	writeb(v, hw_priv->mem_start + a);
+	spin_unlock_irqrestore(&local->lock, flags);
+}
+
+static inline u8 hfa384x_inb_debug(struct net_device *dev, int a)
+{
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+	local_info_t *local;
+	unsigned long flags;
+	u8 v;
+
+	iface = netdev_priv(dev);
+	local = iface->local;
+	hw_priv = local->hw_priv;
+
+	spin_lock_irqsave(&local->lock, flags);
+	v = readb(hw_priv->mem_start + a);
+	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v);
+	spin_unlock_irqrestore(&local->lock, flags);
+	return v;
+}
+
+static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v)
+{
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+	local_info_t *local;
+	unsigned long flags;
+
+	iface = netdev_priv(dev);
+	local = iface->local;
+	hw_priv = local->hw_priv;
+
+	spin_lock_irqsave(&local->lock, flags);
+	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v);
+	writew(v, hw_priv->mem_start + a);
+	spin_unlock_irqrestore(&local->lock, flags);
+}
+
+static inline u16 hfa384x_inw_debug(struct net_device *dev, int a)
+{
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+	local_info_t *local;
+	unsigned long flags;
+	u16 v;
+
+	iface = netdev_priv(dev);
+	local = iface->local;
+	hw_priv = local->hw_priv;
+
+	spin_lock_irqsave(&local->lock, flags);
+	v = readw(hw_priv->mem_start + a);
+	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v);
+	spin_unlock_irqrestore(&local->lock, flags);
+	return v;
+}
+
+#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v))
+#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a))
+#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v))
+#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a))
+#define HFA384X_OUTW_DATA(v,a) hfa384x_outw_debug(dev, (a), le16_to_cpu((v)))
+#define HFA384X_INW_DATA(a) cpu_to_le16(hfa384x_inw_debug(dev, (a)))
+
+#else /* PRISM2_IO_DEBUG */
+
+static inline void hfa384x_outb(struct net_device *dev, int a, u8 v)
+{
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+	iface = netdev_priv(dev);
+	hw_priv = iface->local->hw_priv;
+	writeb(v, hw_priv->mem_start + a);
+}
+
+static inline u8 hfa384x_inb(struct net_device *dev, int a)
+{
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+	iface = netdev_priv(dev);
+	hw_priv = iface->local->hw_priv;
+	return readb(hw_priv->mem_start + a);
+}
+
+static inline void hfa384x_outw(struct net_device *dev, int a, u16 v)
+{
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+	iface = netdev_priv(dev);
+	hw_priv = iface->local->hw_priv;
+	writew(v, hw_priv->mem_start + a);
+}
+
+static inline u16 hfa384x_inw(struct net_device *dev, int a)
+{
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+	iface = netdev_priv(dev);
+	hw_priv = iface->local->hw_priv;
+	return readw(hw_priv->mem_start + a);
+}
+
+#define HFA384X_OUTB(v,a) hfa384x_outb(dev, (a), (v))
+#define HFA384X_INB(a) hfa384x_inb(dev, (a))
+#define HFA384X_OUTW(v,a) hfa384x_outw(dev, (a), (v))
+#define HFA384X_INW(a) hfa384x_inw(dev, (a))
+#define HFA384X_OUTW_DATA(v,a) hfa384x_outw(dev, (a), le16_to_cpu((v)))
+#define HFA384X_INW_DATA(a) cpu_to_le16(hfa384x_inw(dev, (a)))
+
+#endif /* PRISM2_IO_DEBUG */
+
+
+static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf,
+			    int len)
+{
+	u16 d_off;
+	__le16 *pos;
+
+	d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
+	pos = (__le16 *) buf;
+
+	for ( ; len > 1; len -= 2)
+		*pos++ = HFA384X_INW_DATA(d_off);
+
+	if (len & 1)
+		*((char *) pos) = HFA384X_INB(d_off);
+
+	return 0;
+}
+
+
+static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len)
+{
+	u16 d_off;
+	__le16 *pos;
+
+	d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
+	pos = (__le16 *) buf;
+
+	for ( ; len > 1; len -= 2)
+		HFA384X_OUTW_DATA(*pos++, d_off);
+
+	if (len & 1)
+		HFA384X_OUTB(*((char *) pos), d_off);
+
+	return 0;
+}
+
+
+/* FIX: This might change at some point.. */
+#include "hostap_hw.c"
+
+static void prism2_pci_cor_sreset(local_info_t *local)
+{
+	struct net_device *dev = local->dev;
+	u16 reg;
+
+	reg = HFA384X_INB(HFA384X_PCICOR_OFF);
+	printk(KERN_DEBUG "%s: Original COR value: 0x%0x\n", dev->name, reg);
+
+	/* linux-wlan-ng uses extremely long hold and settle times for
+	 * COR sreset. A comment in the driver code mentions that the long
+	 * delays appear to be necessary. However, at least IBM 22P6901 seems
+	 * to work fine with shorter delays.
+	 *
+	 * Longer delays can be configured by uncommenting following line: */
+/* #define PRISM2_PCI_USE_LONG_DELAYS */
+
+#ifdef PRISM2_PCI_USE_LONG_DELAYS
+	int i;
+
+	HFA384X_OUTW(reg | 0x0080, HFA384X_PCICOR_OFF);
+	mdelay(250);
+
+	HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF);
+	mdelay(500);
+
+	/* Wait for f/w to complete initialization (CMD:BUSY == 0) */
+	i = 2000000 / 10;
+	while ((HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) && --i)
+		udelay(10);
+
+#else /* PRISM2_PCI_USE_LONG_DELAYS */
+
+	HFA384X_OUTW(reg | 0x0080, HFA384X_PCICOR_OFF);
+	mdelay(2);
+	HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF);
+	mdelay(2);
+
+#endif /* PRISM2_PCI_USE_LONG_DELAYS */
+
+	if (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) {
+		printk(KERN_DEBUG "%s: COR sreset timeout\n", dev->name);
+	}
+}
+
+
+static void prism2_pci_genesis_reset(local_info_t *local, int hcr)
+{
+	struct net_device *dev = local->dev;
+
+	HFA384X_OUTW(0x00C5, HFA384X_PCICOR_OFF);
+	mdelay(10);
+	HFA384X_OUTW(hcr, HFA384X_PCIHCR_OFF);
+	mdelay(10);
+	HFA384X_OUTW(0x0045, HFA384X_PCICOR_OFF);
+	mdelay(10);
+}
+
+
+static struct prism2_helper_functions prism2_pci_funcs =
+{
+	.card_present	= NULL,
+	.cor_sreset	= prism2_pci_cor_sreset,
+	.genesis_reset	= prism2_pci_genesis_reset,
+	.hw_type	= HOSTAP_HW_PCI,
+};
+
+
+static int prism2_pci_probe(struct pci_dev *pdev,
+			    const struct pci_device_id *id)
+{
+	unsigned long phymem;
+	void __iomem *mem = NULL;
+	local_info_t *local = NULL;
+	struct net_device *dev = NULL;
+	static int cards_found /* = 0 */;
+	int irq_registered = 0;
+	struct hostap_interface *iface;
+	struct hostap_pci_priv *hw_priv;
+
+	hw_priv = kzalloc(sizeof(*hw_priv), GFP_KERNEL);
+	if (hw_priv == NULL)
+		return -ENOMEM;
+
+	if (pci_enable_device(pdev))
+		goto err_out_free;
+
+	phymem = pci_resource_start(pdev, 0);
+
+	if (!request_mem_region(phymem, pci_resource_len(pdev, 0), "Prism2")) {
+		printk(KERN_ERR "prism2: Cannot reserve PCI memory region\n");
+		goto err_out_disable;
+	}
+
+	mem = pci_ioremap_bar(pdev, 0);
+	if (mem == NULL) {
+		printk(KERN_ERR "prism2: Cannot remap PCI memory region\n") ;
+		goto fail;
+	}
+
+	dev = prism2_init_local_data(&prism2_pci_funcs, cards_found,
+				     &pdev->dev);
+	if (dev == NULL)
+		goto fail;
+	iface = netdev_priv(dev);
+	local = iface->local;
+	local->hw_priv = hw_priv;
+	cards_found++;
+
+        dev->irq = pdev->irq;
+        hw_priv->mem_start = mem;
+	dev->base_addr = (unsigned long) mem;
+
+	prism2_pci_cor_sreset(local);
+
+	pci_set_drvdata(pdev, dev);
+
+	if (request_irq(dev->irq, prism2_interrupt, IRQF_SHARED, dev->name,
+			dev)) {
+		printk(KERN_WARNING "%s: request_irq failed\n", dev->name);
+		goto fail;
+	} else
+		irq_registered = 1;
+
+	if (!local->pri_only && prism2_hw_config(dev, 1)) {
+		printk(KERN_DEBUG "%s: hardware initialization failed\n",
+		       dev_info);
+		goto fail;
+	}
+
+	printk(KERN_INFO "%s: Intersil Prism2.5 PCI: "
+	       "mem=0x%lx, irq=%d\n", dev->name, phymem, dev->irq);
+
+	return hostap_hw_ready(dev);
+
+ fail:
+	if (irq_registered && dev)
+		free_irq(dev->irq, dev);
+
+	if (mem)
+		iounmap(mem);
+
+	release_mem_region(phymem, pci_resource_len(pdev, 0));
+
+ err_out_disable:
+	pci_disable_device(pdev);
+	prism2_free_local_data(dev);
+
+ err_out_free:
+	kfree(hw_priv);
+
+	return -ENODEV;
+}
+
+
+static void prism2_pci_remove(struct pci_dev *pdev)
+{
+	struct net_device *dev;
+	struct hostap_interface *iface;
+	void __iomem *mem_start;
+	struct hostap_pci_priv *hw_priv;
+
+	dev = pci_get_drvdata(pdev);
+	iface = netdev_priv(dev);
+	hw_priv = iface->local->hw_priv;
+
+	/* Reset the hardware, and ensure interrupts are disabled. */
+	prism2_pci_cor_sreset(iface->local);
+	hfa384x_disable_interrupts(dev);
+
+	if (dev->irq)
+		free_irq(dev->irq, dev);
+
+	mem_start = hw_priv->mem_start;
+	prism2_free_local_data(dev);
+	kfree(hw_priv);
+
+	iounmap(mem_start);
+
+	release_mem_region(pci_resource_start(pdev, 0),
+			   pci_resource_len(pdev, 0));
+	pci_disable_device(pdev);
+}
+
+
+#ifdef CONFIG_PM
+static int prism2_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+
+	if (netif_running(dev)) {
+		netif_stop_queue(dev);
+		netif_device_detach(dev);
+	}
+	prism2_suspend(dev);
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
+}
+
+static int prism2_pci_resume(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	int err;
+
+	err = pci_enable_device(pdev);
+	if (err) {
+		printk(KERN_ERR "%s: pci_enable_device failed on resume\n",
+		       dev->name);
+		return err;
+	}
+	pci_restore_state(pdev);
+	prism2_hw_config(dev, 0);
+	if (netif_running(dev)) {
+		netif_device_attach(dev);
+		netif_start_queue(dev);
+	}
+
+	return 0;
+}
+#endif /* CONFIG_PM */
+
+
+MODULE_DEVICE_TABLE(pci, prism2_pci_id_table);
+
+static struct pci_driver prism2_pci_driver = {
+	.name		= "hostap_pci",
+	.id_table	= prism2_pci_id_table,
+	.probe		= prism2_pci_probe,
+	.remove		= prism2_pci_remove,
+#ifdef CONFIG_PM
+	.suspend	= prism2_pci_suspend,
+	.resume		= prism2_pci_resume,
+#endif /* CONFIG_PM */
+};
+
+module_pci_driver(prism2_pci_driver);