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

Pull networking update from David Miller:

 1) Checkpoint/restarted TCP sockets now can properly propagate the TCP
    timestamp offset.  From Andrey Vagin.

 2) VMWARE VM VSOCK layer, from Andy King.

 3) Much improved support for virtual functions and SR-IOV in bnx2x,
    from Ariel ELior.

 4) All protocols on ipv4 and ipv6 are now network namespace aware, and
    all the compatability checks for initial-namespace-only protocols is
    removed.  Thanks to Tom Parkin for helping deal with the last major
    holdout, L2TP.

 5) IPV6 support in netpoll and network namespace support in pktgen,
    from Cong Wang.

 6) Multiple Registration Protocol (MRP) and Multiple VLAN Registration
    Protocol (MVRP) support, from David Ward.

 7) Compute packet lengths more accurately in the packet scheduler, from
    Eric Dumazet.

 8) Use per-task page fragment allocator in skb_append_datato_frags(),
    also from Eric Dumazet.

 9) Add support for connection tracking labels in netfilter, from
    Florian Westphal.

10) Fix default multicast group joining on ipv6, and add anti-spoofing
    checks to 6to4 and 6rd.  From Hannes Frederic Sowa.

11) Make ipv4/ipv6 fragmentation memory limits more reasonable in modern
    times, rearrange inet frag datastructures for better cacheline
    locality, and move more operations outside of locking.  From Jesper
    Dangaard Brouer.

12) Instead of strict master <--> slave relationships, allow arbitrary
    scenerios with "upper device lists".  From Jiri Pirko.

13) Improve rate limiting accuracy in TBF and act_police, also from Jiri
    Pirko.

14) Add a BPF filter netfilter match target, from Willem de Bruijn.

15) Orphan and delete a bunch of pre-historic networking drivers from
    Paul Gortmaker.

16) Add TSO support for GRE tunnels, from Pravin B SHelar.  Although
    this still needs some minor bug fixing before it's %100 correct in
    all cases.

17) Handle unresolved IPSEC states like ARP, with a resolution packet
    queue.  From Steffen Klassert.

18) Remove TCP Appropriate Byte Count support (ABC), from Stephen
    Hemminger.  This was long overdue.

19) Support SO_REUSEPORT, from Tom Herbert.

20) Allow locking a socket BPF filter, so that it cannot change after a
    process drops capabilities.

21) Add VLAN filtering to bridge, from Vlad Yasevich.

22) Bring ipv6 on-par with ipv4 and do not cache neighbour entries in
    the ipv6 routes, from YOSHIFUJI Hideaki.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1538 commits)
  ipv6: fix race condition regarding dst->expires and dst->from.
  net: fix a wrong assignment in skb_split()
  ip_gre: remove an extra dst_release()
  ppp: set qdisc_tx_busylock to avoid LOCKDEP splat
  atl1c: restore buffer state
  net: fix a build failure when !CONFIG_PROC_FS
  net: ipv4: fix waring -Wunused-variable
  net: proc: fix build failed when procfs is not configured
  Revert "xen: netback: remove redundant xenvif_put"
  net: move procfs code to net/core/net-procfs.c
  qmi_wwan, cdc-ether: add ADU960S
  bonding: set sysfs device_type to 'bond'
  bonding: fix bond_release_all inconsistencies
  b44: use netdev_alloc_skb_ip_align()
  xen: netback: remove redundant xenvif_put
  net: fec: Do a sanity check on the gpio number
  ip_gre: propogate target device GSO capability to the tunnel device
  ip_gre: allow CSUM capable devices to handle packets
  bonding: Fix initialize after use for 3ad machine state spinlock
  bonding: Fix race condition between bond_enslave() and bond_3ad_update_lacp_rate()
  ...

7 files changed, 231 insertions, 11 deletions

diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index 5d6f2ec1c705..5ff3a4f19443 100644
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -136,6 +136,11 @@ config SSB_DRIVER_MIPS
 
 	  If unsure, say N
 
+config SSB_SFLASH
+	bool "SSB serial flash support"
+	depends on SSB_DRIVER_MIPS && BROKEN
+	default y
+
 # Assumption: We are on embedded, if we compile the MIPS core.
 config SSB_EMBEDDED
 	bool
diff --git a/drivers/ssb/Makefile b/drivers/ssb/Makefile
index 9159ba77c388..b1ddc116d387 100644
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -11,6 +11,7 @@ ssb-$(CONFIG_SSB_SDIOHOST)		+= sdio.o
 # built-in drivers
 ssb-y					+= driver_chipcommon.o
 ssb-y					+= driver_chipcommon_pmu.o
+ssb-$(CONFIG_SSB_SFLASH)		+= driver_chipcommon_sflash.o
 ssb-$(CONFIG_SSB_DRIVER_MIPS)		+= driver_mipscore.o
 ssb-$(CONFIG_SSB_DRIVER_EXTIF)		+= driver_extif.o
 ssb-$(CONFIG_SSB_DRIVER_PCICORE)	+= driver_pcicore.o
diff --git a/drivers/ssb/driver_chipcommon_sflash.c b/drivers/ssb/driver_chipcommon_sflash.c
new file mode 100644
index 000000000000..720665ca2bb1
--- /dev/null
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -0,0 +1,140 @@
+/*
+ * Sonics Silicon Backplane
+ * ChipCommon serial flash interface
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+
+#include "ssb_private.h"
+
+struct ssb_sflash_tbl_e {
+	char *name;
+	u32 id;
+	u32 blocksize;
+	u16 numblocks;
+};
+
+static struct ssb_sflash_tbl_e ssb_sflash_st_tbl[] = {
+	{ "M25P20", 0x11, 0x10000, 4, },
+	{ "M25P40", 0x12, 0x10000, 8, },
+
+	{ "M25P16", 0x14, 0x10000, 32, },
+	{ "M25P32", 0x15, 0x10000, 64, },
+	{ "M25P64", 0x16, 0x10000, 128, },
+	{ "M25FL128", 0x17, 0x10000, 256, },
+	{ 0 },
+};
+
+static struct ssb_sflash_tbl_e ssb_sflash_sst_tbl[] = {
+	{ "SST25WF512", 1, 0x1000, 16, },
+	{ "SST25VF512", 0x48, 0x1000, 16, },
+	{ "SST25WF010", 2, 0x1000, 32, },
+	{ "SST25VF010", 0x49, 0x1000, 32, },
+	{ "SST25WF020", 3, 0x1000, 64, },
+	{ "SST25VF020", 0x43, 0x1000, 64, },
+	{ "SST25WF040", 4, 0x1000, 128, },
+	{ "SST25VF040", 0x44, 0x1000, 128, },
+	{ "SST25VF040B", 0x8d, 0x1000, 128, },
+	{ "SST25WF080", 5, 0x1000, 256, },
+	{ "SST25VF080B", 0x8e, 0x1000, 256, },
+	{ "SST25VF016", 0x41, 0x1000, 512, },
+	{ "SST25VF032", 0x4a, 0x1000, 1024, },
+	{ "SST25VF064", 0x4b, 0x1000, 2048, },
+	{ 0 },
+};
+
+static struct ssb_sflash_tbl_e ssb_sflash_at_tbl[] = {
+	{ "AT45DB011", 0xc, 256, 512, },
+	{ "AT45DB021", 0x14, 256, 1024, },
+	{ "AT45DB041", 0x1c, 256, 2048, },
+	{ "AT45DB081", 0x24, 256, 4096, },
+	{ "AT45DB161", 0x2c, 512, 4096, },
+	{ "AT45DB321", 0x34, 512, 8192, },
+	{ "AT45DB642", 0x3c, 1024, 8192, },
+	{ 0 },
+};
+
+static void ssb_sflash_cmd(struct ssb_chipcommon *cc, u32 opcode)
+{
+	int i;
+	chipco_write32(cc, SSB_CHIPCO_FLASHCTL,
+		       SSB_CHIPCO_FLASHCTL_START | opcode);
+	for (i = 0; i < 1000; i++) {
+		if (!(chipco_read32(cc, SSB_CHIPCO_FLASHCTL) &
+		      SSB_CHIPCO_FLASHCTL_BUSY))
+			return;
+		cpu_relax();
+	}
+	pr_err("SFLASH control command failed (timeout)!\n");
+}
+
+/* Initialize serial flash access */
+int ssb_sflash_init(struct ssb_chipcommon *cc)
+{
+	struct ssb_sflash_tbl_e *e;
+	u32 id, id2;
+
+	switch (cc->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+	case SSB_CHIPCO_FLASHT_STSER:
+		ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_DP);
+
+		chipco_write32(cc, SSB_CHIPCO_FLASHADDR, 0);
+		ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_RES);
+		id = chipco_read32(cc, SSB_CHIPCO_FLASHDATA);
+
+		chipco_write32(cc, SSB_CHIPCO_FLASHADDR, 1);
+		ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_RES);
+		id2 = chipco_read32(cc, SSB_CHIPCO_FLASHDATA);
+
+		switch (id) {
+		case 0xbf:
+			for (e = ssb_sflash_sst_tbl; e->name; e++) {
+				if (e->id == id2)
+					break;
+			}
+			break;
+		case 0x13:
+			return -ENOTSUPP;
+		default:
+			for (e = ssb_sflash_st_tbl; e->name; e++) {
+				if (e->id == id)
+					break;
+			}
+			break;
+		}
+		if (!e->name) {
+			pr_err("Unsupported ST serial flash (id: 0x%X, id2: 0x%X)\n",
+			       id, id2);
+			return -ENOTSUPP;
+		}
+
+		break;
+	case SSB_CHIPCO_FLASHT_ATSER:
+		ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_AT_STATUS);
+		id = chipco_read32(cc, SSB_CHIPCO_FLASHDATA) & 0x3c;
+
+		for (e = ssb_sflash_at_tbl; e->name; e++) {
+			if (e->id == id)
+				break;
+		}
+		if (!e->name) {
+			pr_err("Unsupported Atmel serial flash (id: 0x%X)\n",
+			       id);
+			return -ENOTSUPP;
+		}
+
+		break;
+	default:
+		pr_err("Unsupported flash type\n");
+		return -ENOTSUPP;
+	}
+
+	pr_info("Found %s serial flash (blocksize: 0x%X, blocks: %d)\n",
+		e->name, e->blocksize, e->numblocks);
+
+	pr_err("Serial flash support is not implemented yet!\n");
+
+	return -ENOTSUPP;
+}
diff --git a/drivers/ssb/driver_gpio.c b/drivers/ssb/driver_gpio.c
index eb2753008ef0..dc109de228c6 100644
--- a/drivers/ssb/driver_gpio.c
+++ b/drivers/ssb/driver_gpio.c
@@ -74,6 +74,16 @@ static void ssb_gpio_chipco_free(struct gpio_chip *chip, unsigned gpio)
 	ssb_chipco_gpio_pullup(&bus->chipco, 1 << gpio, 0);
 }
 
+static int ssb_gpio_chipco_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	if (bus->bustype == SSB_BUSTYPE_SSB)
+		return ssb_mips_irq(bus->chipco.dev) + 2;
+	else
+		return -EINVAL;
+}
+
 static int ssb_gpio_chipco_init(struct ssb_bus *bus)
 {
 	struct gpio_chip *chip = &bus->gpio;
@@ -86,6 +96,7 @@ static int ssb_gpio_chipco_init(struct ssb_bus *bus)
 	chip->set		= ssb_gpio_chipco_set_value;
 	chip->direction_input	= ssb_gpio_chipco_direction_input;
 	chip->direction_output	= ssb_gpio_chipco_direction_output;
+	chip->to_irq		= ssb_gpio_chipco_to_irq;
 	chip->ngpio		= 16;
 	/* There is just one SoC in one device and its GPIO addresses should be
 	 * deterministic to address them more easily. The other buses could get
@@ -134,6 +145,16 @@ static int ssb_gpio_extif_direction_output(struct gpio_chip *chip,
 	return 0;
 }
 
+static int ssb_gpio_extif_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	if (bus->bustype == SSB_BUSTYPE_SSB)
+		return ssb_mips_irq(bus->extif.dev) + 2;
+	else
+		return -EINVAL;
+}
+
 static int ssb_gpio_extif_init(struct ssb_bus *bus)
 {
 	struct gpio_chip *chip = &bus->gpio;
@@ -144,6 +165,7 @@ static int ssb_gpio_extif_init(struct ssb_bus *bus)
 	chip->set		= ssb_gpio_extif_set_value;
 	chip->direction_input	= ssb_gpio_extif_direction_input;
 	chip->direction_output	= ssb_gpio_extif_direction_output;
+	chip->to_irq		= ssb_gpio_extif_to_irq;
 	chip->ngpio		= 5;
 	/* There is just one SoC in one device and its GPIO addresses should be
 	 * deterministic to address them more easily. The other buses could get
diff --git a/drivers/ssb/driver_mipscore.c b/drivers/ssb/driver_mipscore.c
index 5bd05b136d22..33b37dac40bd 100644
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -10,6 +10,7 @@
 
 #include <linux/ssb/ssb.h>
 
+#include <linux/mtd/physmap.h>
 #include <linux/serial.h>
 #include <linux/serial_core.h>
 #include <linux/serial_reg.h>
@@ -17,6 +18,25 @@
 
 #include "ssb_private.h"
 
+static const char *part_probes[] = { "bcm47xxpart", NULL };
+
+static struct physmap_flash_data ssb_pflash_data = {
+	.part_probe_types	= part_probes,
+};
+
+static struct resource ssb_pflash_resource = {
+	.name	= "ssb_pflash",
+	.flags  = IORESOURCE_MEM,
+};
+
+struct platform_device ssb_pflash_dev = {
+	.name		= "physmap-flash",
+	.dev		= {
+		.platform_data  = &ssb_pflash_data,
+	},
+	.resource	= &ssb_pflash_resource,
+	.num_resources	= 1,
+};
 
 static inline u32 mips_read32(struct ssb_mipscore *mcore,
 			      u16 offset)
@@ -189,34 +209,43 @@ static void ssb_mips_serial_init(struct ssb_mipscore *mcore)
 static void ssb_mips_flash_detect(struct ssb_mipscore *mcore)
 {
 	struct ssb_bus *bus = mcore->dev->bus;
+	struct ssb_pflash *pflash = &mcore->pflash;
 
 	/* When there is no chipcommon on the bus there is 4MB flash */
 	if (!ssb_chipco_available(&bus->chipco)) {
-		mcore->pflash.present = true;
-		mcore->pflash.buswidth = 2;
-		mcore->pflash.window = SSB_FLASH1;
-		mcore->pflash.window_size = SSB_FLASH1_SZ;
-		return;
+		pflash->present = true;
+		pflash->buswidth = 2;
+		pflash->window = SSB_FLASH1;
+		pflash->window_size = SSB_FLASH1_SZ;
+		goto ssb_pflash;
 	}
 
 	/* There is ChipCommon, so use it to read info about flash */
 	switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
 	case SSB_CHIPCO_FLASHT_STSER:
 	case SSB_CHIPCO_FLASHT_ATSER:
-		pr_err("Serial flash not supported\n");
+		pr_debug("Found serial flash\n");
+		ssb_sflash_init(&bus->chipco);
 		break;
 	case SSB_CHIPCO_FLASHT_PARA:
 		pr_debug("Found parallel flash\n");
-		mcore->pflash.present = true;
-		mcore->pflash.window = SSB_FLASH2;
-		mcore->pflash.window_size = SSB_FLASH2_SZ;
+		pflash->present = true;
+		pflash->window = SSB_FLASH2;
+		pflash->window_size = SSB_FLASH2_SZ;
 		if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
 		               & SSB_CHIPCO_CFG_DS16) == 0)
-			mcore->pflash.buswidth = 1;
+			pflash->buswidth = 1;
 		else
-			mcore->pflash.buswidth = 2;
+			pflash->buswidth = 2;
 		break;
 	}
+
+ssb_pflash:
+	if (pflash->present) {
+		ssb_pflash_data.width = pflash->buswidth;
+		ssb_pflash_resource.start = pflash->window;
+		ssb_pflash_resource.end = pflash->window + pflash->window_size;
+	}
 }
 
 u32 ssb_cpu_clock(struct ssb_mipscore *mcore)
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 24dc331b4701..3b645b8a261f 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -549,6 +549,14 @@ static int ssb_devices_register(struct ssb_bus *bus)
 		dev_idx++;
 	}
 
+#ifdef CONFIG_SSB_DRIVER_MIPS
+	if (bus->mipscore.pflash.present) {
+		err = platform_device_register(&ssb_pflash_dev);
+		if (err)
+			pr_err("Error registering parallel flash\n");
+	}
+#endif
+
 	return 0;
 error:
 	/* Unwind the already registered devices. */
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index da38305a2d22..466171b77f68 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -217,6 +217,21 @@ extern u32 ssb_chipco_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt,
 					     u32 ticks);
 extern u32 ssb_chipco_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
 
+/* driver_chipcommon_sflash.c */
+#ifdef CONFIG_SSB_SFLASH
+int ssb_sflash_init(struct ssb_chipcommon *cc);
+#else
+static inline int ssb_sflash_init(struct ssb_chipcommon *cc)
+{
+	pr_err("Serial flash not supported\n");
+	return 0;
+}
+#endif /* CONFIG_SSB_SFLASH */
+
+#ifdef CONFIG_SSB_DRIVER_MIPS
+extern struct platform_device ssb_pflash_dev;
+#endif
+
 #ifdef CONFIG_SSB_DRIVER_EXTIF
 extern u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks);
 extern u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);