Commit Graph

121989 Commits

Author SHA1 Message Date
Matthew Wilcox
2930353f9f NVMe: Allow queues to be allocated above 4GB
Need to call dma_set_coherent_mask() to allow queues to be allocated
above 4GB.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:53 -04:00
Matthew Wilcox
f64d3365a3 NVMe: Enable device DMA
Need to call pci_set_master() to enable device DMA

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:53 -04:00
Shane Michael Matthews
0ee5a7d7cb NVMe: Enable and disable the PCI device
Call pci_enable_device_mem() at initialisation and pci_disable_device
at exit.

Signed-off-by: Shane Michael Matthews <shane.matthews@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:53 -04:00
Matthew Wilcox
3f85d50b60 NVMe: Check returns from nvme_alloc_queue()
It can return NULL, so handle that.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:53 -04:00
Matthew Wilcox
8e9f0e7115 NVMe: Remove 'node' from nvme_dev
We don't keep a list of nvme_dev any more

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:53 -04:00
Matthew Wilcox
51814232ec NVMe: Read the model, serial & firmware rev from the controller
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:53 -04:00
Matthew Wilcox
a53295b699 NVMe: Add NVME_IOCTL_SUBMIT_IO
Allow userspace to submit synchronous I/O like the SCSI sg interface does.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:53 -04:00
Matthew Wilcox
7fc3cdabba NVMe: Create nvme_map_user_pages() and nvme_unmap_user_pages()
These are generalisations of the code that was in
nvme_submit_user_admin_command().

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:52 -04:00
Matthew Wilcox
bd38c5557c NVMe: Change NVME_IOCTL_GET_RANGE_TYPE to return all the ranges
Factor out most of nvme_identify() into a new nvme_submit_user_admin_command()
function.  Change nvme_get_range_type() to call it and change nvme_ioctl to
realise that it's getting back all 64 ranges.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:52 -04:00
Matthew Wilcox
b8deb62cf2 NVMe: Zero the command before we send it
Make sure there's no left-over bits set from previous commands that used
this slot.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:52 -04:00
Matthew Wilcox
ff22b54fda NVMe: Add nvme_setup_prps()
Generalise the code from nvme_identify() that sets PRP1 & PRP2 so that
it's usable for commands sent by nvme_submit_bio_queue().

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:52 -04:00
Matthew Wilcox
36c14ed9ca NVMe: Use PRP2 for the nvme_identify ioctl
DMA the result straight to userspace instead of bounce-buffering in the
kernel.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:52 -04:00
Matthew Wilcox
53c9577e9c NVMe: Fix admin IRQ claim on real hardware
The admin IRQ is supposed to use the pin-based (or single message MSI)
interrupt.  Accomplish this by filling in entry[0]'s vector with the
INTx irq number.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:51 -04:00
Matthew Wilcox
821234603b NVMe: Rename 'cycle' to 'phase'
It's called the phase bit in the current draft

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:51 -04:00
Matthew Wilcox
1b23484bd0 NVMe: Implement per-CPU queues
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:51 -04:00
Matthew Wilcox
b3b06812e1 NVMe: Reduce set_queue_count arguments by one
sq_count and cq_count are always the same, so just call it 'count'.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:51 -04:00
Matthew Wilcox
3001082cac NVMe: Factor out queue_request_irq()
Two callers with an almost identical long string of arguments, and
introducing a third soon.  Time to factor out the commonalities.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:51 -04:00
Matthew Wilcox
b60503ba43 NVMe: New driver
This driver is for devices that follow the NVM Express standard

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:52:51 -04:00
Matthew Wilcox
0b934ccd70 Xen: Export xen_biovec_phys_mergeable
When Xen is enabled, using BIOVEC_PHYS_MERGEABLE in a module
causes xen_biovec_phys_mergeable to be referenced, so it needs
to be exported.

Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
2011-11-04 15:41:27 -04:00
Linus Torvalds
6a0596583f Merge git://git.infradead.org/iommu-2.6
* git://git.infradead.org/iommu-2.6:
  intel-iommu: fix superpage support in pfn_to_dma_pte()
  intel-iommu: set iommu_superpage on VM domains to lowest common denominator
  intel-iommu: fix return value of iommu_unmap() API
  MAINTAINERS: Update VT-d entry for drivers/pci -> drivers/iommu move
  intel-iommu: Export a flag indicating that the IOMMU is used for iGFX.
  intel-iommu: Workaround IOTLB hang on Ironlake GPU
  intel-iommu: Fix AB-BA lockdep report
2011-10-24 07:08:24 +02:00
Linus Torvalds
15cc910112 Merge branch 'for-linus' of http://people.redhat.com/agk/git/linux-dm
* 'for-linus' of http://people.redhat.com/agk/git/linux-dm:
  dm kcopyd: fix job_pool leak
2011-10-24 07:05:38 +02:00
Alasdair G Kergon
d136f2efdf dm kcopyd: fix job_pool leak
Fix memory leak introduced by commit a6e50b409d
(dm snapshot: skip reading origin when overwriting complete chunk).

When allocating a set of jobs from kc->job_pool, job->master_job must be
set (to point to itself) so that the mempool item gets freed when the
master_job completes.

master_job was introduced by commit c6ea41fbbe
(dm kcopyd: preallocate sub jobs to avoid deadlock)

Reported-by: Michael Leun <ml@newton.leun.net>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-10-23 20:55:17 +01:00
Linus Torvalds
5117cc25fd Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (w83627ehf) Fix negative 8-bit temperature values
2011-10-23 10:43:31 +03:00
Linus Torvalds
505f48b534 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  fib_rules: fix unresolved_rules counting
  r8169: fix wrong eee setting for rlt8111evl
  r8169: fix driver shutdown WoL regression.
  ehea: Change maintainer to me
  pptp: pptp_rcv_core() misses pskb_may_pull() call
  tproxy: copy transparent flag when creating a time wait
  pptp: fix skb leak in pptp_xmit()
  bonding: use local function pointer of bond->recv_probe in bond_handle_frame
  smsc911x: Add support for SMSC LAN89218
  tg3: negate USE_PHYLIB flag check
  netconsole: enable netconsole can make net_device refcnt incorrent
  bluetooth: Properly clone LSM attributes to newly created child connections
  l2tp: fix a potential skb leak in l2tp_xmit_skb()
  bridge: fix hang on removal of bridge via netlink
  x25: Prevent skb overreads when checking call user data
  x25: Handle undersized/fragmented skbs
  x25: Validate incoming call user data lengths
  udplite: fast-path computation of checksum coverage
  IPVS netns shutdown/startup dead-lock
  netfilter: nf_conntrack: fix event flooding in GRE protocol tracker
2011-10-20 22:15:20 +03:00
Jean Delvare
133d324d82 hwmon: (w83627ehf) Fix negative 8-bit temperature values
Since 8-bit temperature values are now handled in 16-bit struct
members, values have to be cast to s8 for negative temperatures to be
properly handled. This is broken since kernel version 2.6.39
(commit bce26c58df86599c9570cee83eac58bdaae760e4.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@kernel.org	# 2.6.39+
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-10-20 07:17:08 -07:00
hayeswang
1b23a3e3d1 r8169: fix wrong eee setting for rlt8111evl
Correct the wrong parameter for setting EEE for RTL8111E-VL.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19 18:48:17 -04:00
françois romieu
649b3b8c4e r8169: fix driver shutdown WoL regression.
Due to commit 92fc43b415 ("r8169: modify the
flow of the hw reset."), rtl8169_hw_reset stomps during driver shutdown on
RxConfig bits which are needed for WOL on some versions of the hardware.

As these bits were formerly set from the r81{0x, 68}_pll_power_down methods,
factor them out for use in the driver shutdown (rtl_shutdown) handler.

I favored __rtl8169_get_wol() -hardware state indication- over
RTL_FEATURE_WOL as the latter has become a good candidate for removal.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes <hayeswang@realtek.com>
Tested-by: Marc Ballarin <ballarin.marc@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19 17:08:21 -04:00
Linus Torvalds
e4fcd69c9e Merge branch 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus
* 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus:
  [media] videodev: fix a NULL pointer dereference in v4l2_device_release()
2011-10-19 06:44:11 -07:00
Antonio Ospite
e58fced201 [media] videodev: fix a NULL pointer dereference in v4l2_device_release()
The change in 8280b66 does not cover the case when v4l2_dev is already
NULL, fix that.

With a Kinect sensor, seen as an USB camera using GSPCA in this context,
a NULL pointer dereference BUG can be triggered by just unplugging the
device after the camera driver has been loaded.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-10-19 09:48:08 -02:00
Allen Kay
4399c8bf2b intel-iommu: fix superpage support in pfn_to_dma_pte()
If target_level == 0, current code breaks out of the while-loop if
SUPERPAGE bit is set. We should also break out if PTE is not present.
If we don't do this, KVM calls to iommu_iova_to_phys() will cause
pfn_to_dma_pte() to create mapping for 4KiB pages.

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-19 12:06:22 +01:00
Allen Kay
8140a95d22 intel-iommu: set iommu_superpage on VM domains to lowest common denominator
set dmar->iommu_superpage field to the smallest common denominator
of super page sizes supported by all active VT-d engines.  Initialize
this field in intel_iommu_domain_init() API so intel_iommu_map() API
will be able to use iommu_superpage field to determine the appropriate
super page size to use.

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-19 12:06:20 +01:00
Allen Kay
292827cb16 intel-iommu: fix return value of iommu_unmap() API
iommu_unmap() API expects IOMMU drivers to return the actual page order
of the address being unmapped.  Previous code was just returning page
order passed in from the caller.  This patch fixes this problem.

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-19 12:06:18 +01:00
Alex Deucher
5a6e8482a1 drm/radeon/kms/atom: fix handling of FB scratch indices
FB scratch indices are dword indices, but we were treating
them as byte indices.  As such, we were getting the wrong
FB scratch data for non-0 indices.  Fix the indices and
guard the indexing against indices larger than the scratch
allocation.

Fixes memory corruption on some boards if data was written
past the end of the FB scratch array.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reported-by: Dave Airlie <airlied@redhat.com>
Tested-by: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-19 09:47:47 +01:00
Eric Dumazet
4ea2739ea8 pptp: pptp_rcv_core() misses pskb_may_pull() call
e1000e uses paged frags, so any layer incorrectly pulling bytes from skb
can trigger a BUG in skb_pull()

[951.142737]  [<ffffffff813d2f36>] skb_pull+0x15/0x17
[951.142737]  [<ffffffffa0286824>] pptp_rcv_core+0x126/0x19a [pptp]
[951.152725]  [<ffffffff813d17c4>] sk_receive_skb+0x69/0x105
[951.163558]  [<ffffffffa0286993>] pptp_rcv+0xc8/0xdc [pptp]
[951.165092]  [<ffffffffa02800a3>] gre_rcv+0x62/0x75 [gre]
[951.165092]  [<ffffffff81410784>] ip_local_deliver_finish+0x150/0x1c1
[951.177599]  [<ffffffff81410634>] ? ip_local_deliver_finish+0x0/0x1c1
[951.177599]  [<ffffffff81410846>] NF_HOOK.clone.7+0x51/0x58
[951.177599]  [<ffffffff81410996>] ip_local_deliver+0x51/0x55
[951.177599]  [<ffffffff814105b9>] ip_rcv_finish+0x31a/0x33e
[951.177599]  [<ffffffff8141029f>] ? ip_rcv_finish+0x0/0x33e
[951.204898]  [<ffffffff81410846>] NF_HOOK.clone.7+0x51/0x58
[951.214651]  [<ffffffff81410bb5>] ip_rcv+0x21b/0x246

pptp_rcv_core() is a nice example of a function assuming everything it
needs is available in skb head.

Reported-by: Bradley Peterson <despite@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19 03:50:43 -04:00
Eric Dumazet
8bae8bd6cb pptp: fix skb leak in pptp_xmit()
In case we cant transmit skb, we must free it

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19 02:39:43 -04:00
Mitsuo Hayasaka
4d97480b18 bonding: use local function pointer of bond->recv_probe in bond_handle_frame
The bond->recv_probe is called in bond_handle_frame() when
a packet is received, but bond_close() sets it to NULL. So,
a panic occurs when both functions work in parallel.

Why this happen:
After null pointer check of bond->recv_probe, an sk_buff is
duplicated and bond->recv_probe is called in bond_handle_frame.
So, a panic occurs when bond_close() is called between the
check and call of bond->recv_probe.

Patch:
This patch uses a local function pointer of bond->recv_probe
in bond_handle_frame(). So, it can avoid the null pointer
dereference.

Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19 00:14:22 -04:00
Phil Edworthy
28c213793c smsc911x: Add support for SMSC LAN89218
LAN89218 is register compatible with LAN911x.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-19 00:01:01 -04:00
Jiri Pirko
e730c82347 tg3: negate USE_PHYLIB flag check
USE_PHYLIB flag in tg3_remove_one() is being checked incorrectly. This
results tg3_phy_fini->phy_disconnect is never called and when tg3 module
is removed.

In my case this resulted in panics in phy_state_machine calling function
phydev->adjust_link.

So correct this check.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Acked-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-18 23:59:33 -04:00
Gao feng
d5123480b1 netconsole: enable netconsole can make net_device refcnt incorrent
There is no check if netconsole is enabled current.
so when exec echo 1 > enabled;
the reference of net_device will increment always.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-18 23:55:29 -04:00
Alex Deucher
a4863ca93c drm/radeon/kms/DCE4.1: fix Select_CrtcSource EncodeMode setting for DP bridges (v2)
Settings in this table reflect the physical panel/connector rather
than the internal dig encoding.

v2: fix typo for DRM_MODE_CONNECTOR_VGA case.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-18 10:16:55 +01:00
Alex Deucher
09cc6506f9 drm/radeon/kms/DCE4.1: ss is not supported on the internal pplls
It's handled via external clock.  It should already be protected
by the external ss flag, but add an explicit check just in case.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-18 10:16:33 +01:00
Alex Deucher
3a6dea3145 drm/radeon/kms/DCE4.1: fix dig encoder to transmitter mapping
llano has fully routeable dig encoders similar to DCE3.2 while
ontario has a hardcoded mapping similar to DCE4.0.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-18 10:16:10 +01:00
Thomas Hellstrom
e22469ca88 ttm: Fix error-path using an uninitialized value
Pointed out by Michel Daenzer.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-18 09:37:49 +01:00
Linus Torvalds
4c41042d1d Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (w83627ehf) Properly report thermal diode sensors
2011-10-15 08:29:09 +12:00
David Woodhouse
c0771df8d5 intel-iommu: Export a flag indicating that the IOMMU is used for iGFX.
We really don't want this to work in the general case; device drivers
*shouldn't* care whether they are behind an IOMMU or not. But the
integrated graphics is a special case, because the IOMMU and the GTT are
all kind of smashed into one and generally horrifically buggy, so it's
reasonable for the graphics driver to want to know when the IOMMU is
active for the graphics hardware.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-14 20:59:46 +01:00
David Woodhouse
6fbcfb3e46 intel-iommu: Workaround IOTLB hang on Ironlake GPU
To work around a hardware issue, we have to submit IOTLB flushes while
the graphics engine is idle. The graphics driver will (we hope) go to
great lengths to ensure that it gets that right on the affected
chipset(s)... so let's not screw it over by deferring the unmap and
doing it later. That wouldn't be very helpful.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-14 20:51:44 +01:00
Linus Torvalds
e9308cfd5a Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6
* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6:
  gpio-pca953x: fix gpio_base
  gpio/omap: fix build error with certain OMAP1 configs
2011-10-14 17:07:52 +12:00
Jean Delvare
bf164c58e5 hwmon: (w83627ehf) Properly report thermal diode sensors
The w83627ehf driver is improperly reporting thermal diode sensors as
type 2, instead of 3. This caused "sensors" and possibly other
monitoring tools to report these sensors as "transistor" instead of
"thermal diode".

Furthermore, diode subtype selection (CPU vs. external) is only
supported by the original W83627EHF/EHG. All later models only support
CPU diode type, and some (NCT6776F) don't even have the register in
question so we should avoid reading from it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-10-13 16:51:29 -07:00
Hartmut Knaack
25fcf2b7f1 gpio-pca953x: fix gpio_base
gpio_base was set to 0 if no system platform data or open firmware
platform data was provided. This led to conflicts, if any other gpiochip
with a gpiobase of 0 was instantiated already. Setting it to -1 will
automatically use the first one available.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-13 13:49:37 -06:00
Janusz Krzysztofik
78a4315872 gpio/omap: fix build error with certain OMAP1 configs
With commit f64ad1a0e2, "gpio/omap: cleanup _set_gpio_wakeup(), remove
ifdefs", access to build time conditionally omitted 'suspend_wakeup'
member of the 'gpio_bank' structure has been placed unconditionally in
function _set_gpio_wakeup(), which is always built. This resulted in the
driver compilation broken for certain OMAP1, i.e., non-OMAP16xx,
configurations.

Really required or not in previously excluded cases, define this
structure member unconditionally as a fix.

Tested with a custom OMAP1510 only configuration.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Kevin Hilman <khilman@ti.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-13 11:48:25 -06:00