Commit Graph

5296 Commits

Author SHA1 Message Date
Maxime Bizon 6f00a02296 bcm63xx_enet: add support for Broadcom BCM63xx integrated gigabit switch
Newer Broadcom BCM63xx SoCs: 6328, 6362 and 6368 have an integrated switch
which needs to be driven slightly differently from the traditional
external switches. This patch introduces changes in arch/mips/bcm63xx in order
to:

- register a bcm63xx_enetsw driver instead of bcm63xx_enet driver
- update DMA channels configuration & state RAM base addresses
- add a new platform data configuration knob to define the number of
  ports per switch/device and force link on some ports
- define the required switch registers

On the driver side, the following changes are required:

- the switch ports need to be polled to ensure the link is up and
  running and RX/TX can properly work
- basic switch configuration needs to be performed for the switch to
  forward packets to the CPU
- update the MIB counters since the integrated

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-10 14:28:28 -07:00
Maxime Bizon 0ae99b5fed bcm63xx_enet: split DMA channel register accesses
The current bcm63xx_enet driver always uses bcmenet_shared_base whenever
it needs to access DMA channel configuration space or access the DMA
channel state RAM. Split these register in 3 parts to be more accurate:

- global DMA configuration
- per DMA channel configuration space
- per DMA channel state RAM space

This is preliminary to support new chips where the global DMA
configuration remains the same, but there is a varying number of DMA
channels located at a different memory offset.

Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-10 14:28:27 -07:00
David S. Miller 6bc19fb82d Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merge 'net' bug fixes into 'net-next' as we have patches
that will build on top of them.

This merge commit includes a change from Emil Goode
(emilgoode@gmail.com) that fixes a warning that would
have been introduced by this merge.  Specifically it
fixes the pingv6_ops method ipv6_chk_addr() to add a
"const" to the "struct net_device *dev" argument and
likewise update the dummy_ipv6_chk_addr() declaration.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-05 16:37:30 -07:00
David Daney ed829857b3 mips/kvm: Use ENOIOCTLCMD to indicate unimplemented ioctls.
The Linux Way is to return -ENOIOCTLCMD to the vfs when an
unimplemented ioctl is requested.  Do this in kvm_mips instead of a
random mixture of -ENOTSUPP and -EINVAL.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03 10:58:55 +03:00
David Daney 4c73fb2b05 mips/kvm: Fix ABI by moving manipulation of CP0 registers to KVM_{G,S}ET_ONE_REG
Because not all 256 CP0 registers are ever implemented, we need a
different method of manipulating them.  Use the
KVM_SET_ONE_REG/KVM_GET_ONE_REG mechanism.

Now unused code and definitions are removed.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03 10:58:54 +03:00
David Daney 8d17dd041a mips/kvm: Use ARRAY_SIZE() instead of hardcoded constants in kvm_arch_vcpu_ioctl_{s,g}et_regs
Also we cannot set special zero register, so force it to zero.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03 10:58:53 +03:00
David Daney bf32ebf66d mips/kvm: Fix name of gpr field in struct kvm_regs.
Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03 10:58:53 +03:00
David Daney 688cded320 mips/kvm: Fix ABI for use of 64-bit registers.
All registers are 64-bits wide, 32-bit guests use the least
significant portion of the register storage fields.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03 10:58:52 +03:00
David Daney 1f3dc6d764 mips/kvm: Fix ABI for use of FPU.
Define a non-empty struct kvm_fpu.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-03 10:58:50 +03:00
Jiri Pirko 351638e7de net: pass info struct via netdevice notifier
So far, only net_device * could be passed along with netdevice notifier
event. This patch provides a possibility to pass custom structure
able to provide info that event listener needs to know.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>

v2->v3: fix typo on simeth
	shortened dev_getter
	shortened notifier_info struct name
v1->v2: fix notifier_call parameter in call_netdevice_notifier()
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-28 13:11:01 -07:00
Linus Torvalds b64194068b Merge tag 'usb-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
 "Here are a number of tiny USB bugfixes / new device ids for 3.10-rc2

  The majority of these are USB gadget fixes, but they are all small.
  Other than that, some USB host controller fixes, and USB serial driver
  fixes for problems reported with them.

  Also hopefully a fixed up USB_OTG Kconfig dependancy, that one seems
  to be almost impossible to get right for all of the different
  platforms these days."

* tag 'usb-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (56 commits)
  USB: cxacru: potential underflow in cxacru_cm_get_array()
  USB: ftdi_sio: Add support for Newport CONEX motor drivers
  USB: option: add device IDs for Dell 5804 (Novatel E371) WWAN card
  usb: ohci: fix goto wrong tag in err case
  usb: isp1760-if: fix memleak when platform_get_resource fail
  usb: ehci-s5p: fix memleak when fallback to pdata
  USB: serial: clean up chars_in_buffer
  USB: ti_usb_3410_5052: fix chars_in_buffer overhead
  USB: io_ti: fix chars_in_buffer overhead
  USB: ftdi_sio: fix chars_in_buffer overhead
  USB: ftdi_sio: clean up get_modem_status
  USB: serial: add generic wait_until_sent implementation
  USB: serial: add wait_until_sent operation
  USB: set device dma_mask without reference to global data
  USB: Blacklisted Cinterion's PLxx WWAN Interface
  usb: option: Add Telewell TW-LTE 4G
  USB: EHCI: remove bogus #error
  USB: reset resume quirk needed by a hub
  USB: usb-stor: realtek_cr: Fix compile error
  usb, chipidea: fix link error when USB_EHCI_HCD is a module
  ...
2013-05-23 09:23:32 -07:00
Linus Torvalds 72dd4e7980 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm bugfixes from Gleb Natapov.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM/MIPS32: Wrap calls to gfn_to_pfn() with srcu_read_lock/unlock()
  KVM/MIPS32: Move include/asm/kvm.h => include/uapi/asm/kvm.h since it is a user visible API.
  KVM: take over co-maintainership from Marcelo, fix MAINTAINERS entry
2013-05-23 09:18:08 -07:00
Aron Xu dec33abaaf MIPS: N64: Wire getdents64(2)
As a relatively new ABI, N64 only had getdents syscall while other modern
architectures have getdents64.

This was noticed when Python 3.3 shifted to the latter one for aarch64.

[ralf@linux-mips.org: The history of getdents64 is a little complicated.
Commit 1a1d77dd589de5a567fa95e36aa6999c704ceca4 [Merge with 2.4.0-test7.]
added N64 getdents(2) to arch/mips64/kernel/scall_64.S as syscall 5213,
then dropped again in 578720675c44e54e8aa7c68f6dce59ed37ce3d3b [Overhaul
of the 64-bit syscall interface.  Now heritage free.] for 2.5.18 in 2002.]

Signed-off-by: Aron Xu <aron@debian.org>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5285/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 15:37:58 +02:00
Masami Hiramatsu 22047b8517 kprobes/mips: Fix to check double free of insn slot
Fix to check double free of insn_slot at arch_remove_kprobe
as other arches do.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: Maneesh Soni <manesoni@cisco.com>
Cc: Victor Kamensky <kamensky@cisco.com>
Cc: linux-mips@linux-mips.org
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: yrl.pp-manager.tt@hitachi.com
Cc: systemtap@sourceware.org
Patchwork: https://patchwork.linux-mips.org/patch/5293/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 12:48:30 +02:00
Sanjay Lal 6d17c0d1e8 KVM/MIPS32: Wrap calls to gfn_to_pfn() with srcu_read_lock/unlock()
- As suggested by Gleb, wrap calls to gfn_to_pfn() with srcu_read_lock/unlock().
  Memory slots should be acccessed from a SRCU read section.
- kvm_mips_map_page() now returns an error code to it's callers, instead of
  calling panic() if it cannot find a mapping for a particular gfn.

Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-05-22 11:44:09 +03:00
Sanjay Lal ba86e4dda7 KVM/MIPS32: Move include/asm/kvm.h => include/uapi/asm/kvm.h since it is a user visible API.
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-05-22 11:42:53 +03:00
Ralf Baechle 087d990b37 MIPS: Idle: Break r4k_wait into two functions and fix it.
local_irq_enable() may expand into very different code, so it rather should
stay in C.  Also this keeps the assembler code size constant which keeps
the rollback code simple.  So it's best to split r4k_wait into two parts,
one C and one assembler.

Finally add the local_irq_enable() to r4k_wait to ensure the WAIT
instruction in __r4k_wait() will work properly.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:28 +02:00
Ralf Baechle f94d9a8ef9 MIPS: Idle: Do address fiddlery in helper functions.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:28 +02:00
Ralf Baechle bdc92d74e0 MIPS: Idle: Consolidate all declarations in <asm/idle.h>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:27 +02:00
Ralf Baechle d882f07a83 MIPS: Idle: Don't call local_irq_disable() in cpu_wait() implementations.
The generic idle loop has already disabled interrupts so this is redundant.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:27 +02:00
Ralf Baechle fb40bc3e94 MIPS: Idle: Re-enable irqs at the end of r3081, au1k and loongson2 cpu_wait.
Without this, the

    WARN_ON_ONCE(irqs_disabled());

in the idle loop will be triggered.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:26 +02:00
Ralf Baechle c9b6869dbb MIPS: Idle: Make call of function pointer readable.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:26 +02:00
Ralf Baechle f91a148aa2 MIPS: Idle: Consistently reformat inline assembler.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:25 +02:00
Ralf Baechle 00baf8576c MIPS: Idle: cleaup SMTC idle hook as per Linux coding style.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:25 +02:00
Ralf Baechle 49f2ec91e1 MIPS: Consolidate idle loop / WAIT instruction support in a single file.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-22 01:34:25 +02:00