Commit Graph

328673 Commits

Author SHA1 Message Date
Jack Morgenstein
54679e1482 mlx4: Implement QP paravirtualization and maintain phys_pkey_cache for smp_snoop
This requires:

1. Replacing the paravirtualized P_Key index (inserted by the guest)
   with the real P_Key index.

2. For UD QPs, placing the guest's true source GID index in the
   address path structure mgid field, and setting the ud_force_mgid
   bit so that the mgid is taken from the QP context and not from the
   WQE when posting sends.

3. For UC and RC QPs, placing the guest's true source GID index in the
   address path structure mgid field.

4. For tunnel and proxy QPs, setting the Q_Key value reserved for that
   proxy/tunnel pair.

Since not all the above adjustments occur in all the QP transitions,
the QP transitions require separate wrapper functions.

Secondly, initialize the P_Key virtualization table to its default
values: Master virtualized table is 1-1 with the real P_Key table,
guest virtualized table has P_Key index 0 mapped to the real P_Key
index 0, and all the other P_Key indices mapped to the reserved
(invalid) P_Key at index 127.

Finally, add logic in smp_snoop for maintaining the phys_P_Key_cache.
and generating events on the master only if a P_Key actually changed.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:33 -07:00
Jack Morgenstein
fc06573dfa IB/mlx4: Initialize SR-IOV IB support for slaves in master context
Allocate SR-IOV paravirtualization resources and MAD demuxing contexts
on the master.

This has two parts.  The first part is to initialize the structures to
contain the contexts.  This is done at master startup time in
mlx4_ib_init_sriov().

The second part is to actually create the tunneling resources required
on the master to support a slave.  This is performed the master
detects that a slave has started up (MLX4_DEV_EVENT_SLAVE_INIT event
generated when a slave initializes its comm channel).

For the master, there is no such startup event, so it creates its own
tunneling resources when it starts up.  In addition, the master also
creates the real special QPs.  The ib_core layer on the master causes
creation of proxy special QPs, since the master is also
paravirtualized at the ib_core layer.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:32 -07:00
Jack Morgenstein
e2c76824ca mlx4_core: Add proxy and tunnel QPs to the reserved QP area
In addition, pass the proxy and tunnel QP numbers to slaves so the
driver can perform special QP paravirtualization.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:31 -07:00
Jack Morgenstein
1ffeb2eb8b IB/mlx4: SR-IOV IB context objects and proxy/tunnel SQP support
1. Introduce the basic SR-IOV parvirtualization context objects for
   multiplexing and demultiplexing MADs.
2. Introduce support for the new proxy and tunnel QP types.

This patch introduces the objects required by the master for managing
QP paravirtualization for guests.

struct mlx4_ib_sriov is created by the master only.
It is a container for the following:

1. All the info required by the PPF to multiplex and de-multiplex MADs
   (including those from the PF). (struct mlx4_ib_demux_ctx demux)
2. All the info required to manage alias GUIDs (i.e., the GUID at
   index 0 that each guest perceives.  In fact, this is not the GUID
   which is actually at index 0, but is, in fact, the GUID which is at
   index[<VF number>] in the physical table.
3. structures which are used to manage CM paravirtualization
4. structures for managing the real special QPs when running in SR-IOV
   mode.  The real SQPs are controlled by the PPF in this case.  All
   SQPs created and controlled by the ib core layer are proxy SQP.

struct mlx4_ib_demux_ctx contains the information per port needed
to manage paravirtualization:

1. All multicast paravirt info
2. All tunnel-qp paravirt info for the port.
3. GUID-table and GUID-prefix for the port
4. work queues.

struct mlx4_ib_demux_pv_ctx contains all the info for managing the
paravirtualized QPs for one slave/port.

struct mlx4_ib_demux_pv_qp contains the info need to run an individual
QP (either tunnel qp or real SQP).

Note:  We made use of the 2 most significant bits in enum
mlx4_ib_qp_flags (based on enum ib_qp_create_flags in ib_verbs.h).
We need these bits in the low-level driver for internal purposes.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:30 -07:00
Jack Morgenstein
73aaa7418f IB/core: Add ib_find_exact_cached_pkey()
When P_Key tables potentially contain both full and partial membership
copies for the same P_Key, we need a function to find the index for an
exact (16-bit) P_Key.

This is necessary when the master forwards QP1 MADs sent by guests.
If the guest has sent the MAD with a limited membership P_Key, we need
to to forward the MAD using the same limited membership P_Key.  Since
the master may have both the limited and the full member P_Keys in its
table, we must make sure to retrieve the limited membership P_Key in
this case.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:30 -07:00
Jack Morgenstein
ff7166c447 IB/core: Handle table with full and partial membership for the same P_Key
Extend the cached and non-cached P_Key table lookups to handle limited
and full membership of the same P_Key to co-exist in the P_Key table.

This is necessary for SR-IOV, to allow for some guests would to have
the full membership P_Key in their virtual P_Key table, while other
guests on the same physical HCA would have the limited one.
To support this, we need both the limited and full membership P_Keys
to be present in the master's (hypervisor physical port) P_Key table.

The algorithm for handling P_Key tables which contain both the limited
and the full membership versions of the same P_Key works as follows:

When scanning the P_Key table for a 15-bit P_Key:

A. If there is a full member version of that P_Key anywhere in the
    table, return its index (even if a limited-member version of the
    P_Key exists earlier in the table).

B. If the full member version is not in the table, but the
   limited-member version is in the table, return the index of the
   limited P_Key.

Signed-off-by: Liran Liss <liranl@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:29 -07:00
Jack Morgenstein
d2b57063e4 IB/core: Reserve bits in enum ib_qp_create_flags for low-level driver use
Reserve bits 26-31 for internal use by low-level drivers. Two such
bits are used in the mlx4_b driver SR-IOV implementation.

These enum additions guarantee that the core layer will never use
these bits, so that low level drivers may safely make use of them.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:28 -07:00
Or Gerlitz
a084feebd2 mlx4_core: Remove annoying debug message in the resource tracker
This innocent print makes it very hard to actually use the mlx4_core
debug messages -- for example, the module load sequence of a device
with two VFs yielded 3200 debug prints, with 2800 of them being this
one.  Let's just remove it.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:09 -07:00
Dotan Barak
426dd00d76 mlx4_core: Fix wrong offset in parsing query device caps response
The wrong offset was used when parsing the number of XRCs in
mlx4_QUERY_DEV_CAP().

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:08 -07:00
Dotan Barak
46db567deb IB/mlx4: Fill in sq_sig_type in query QP
Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:08 -07:00
Patrick McHardy
bea1e22df4 IPoIB: Fix use-after-free of multicast object
Fix a crash in ipoib_mcast_join_task().  (with help from Or Gerlitz)

Commit c8c2afe360 ("IPoIB: Use rtnl lock/unlock when changing device
flags") added a call to rtnl_lock() in ipoib_mcast_join_task(), which
is run from the ipoib_workqueue, and hence the workqueue can't be
flushed from the context of ipoib_stop().

In the current code, ipoib_stop() (which doesn't flush the workqueue)
calls ipoib_mcast_dev_flush(), which goes and deletes all the
multicast entries.  This takes place without any synchronization with
a possible running instance of ipoib_mcast_join_task() for the same
ipoib device, leading to a crash due to NULL pointer dereference.

Fix this by making sure that the workqueue is flushed before
ipoib_mcast_dev_flush() is called.  To make that possible, we move the
RTNL-lock wrapped code to ipoib_mcast_join_finish().

Signed-off-by: Patrick McHardy <kaber@trash.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:32:33 -07:00
Emil Goode
c079c28714 RDMA/cxgb4: Fix error handling in create_qp()
The variable ret is assigned return values in a couple of places, but
its value is never returned.  This patch makes use of the ret variable
so that the caller get correct error codes returned.

The following changes are also introduced:

- The alloc_oc_sq function can return -ENOSYS or -ENOMEM so we want to
  get the return value from it.

- Change the label names to improve readability.

Signed-off-by: Emil Goode <emilgoode@gmail.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:32:14 -07:00
Dotan Barak
2a22fb8c69 RDMA/cma: Use consistent component mask for IPoIB port space multicast joins
CMA multicast joins for the IPoIB port space need to use the same
component mask used by the ipoib driver.  Otherwise, it's possible for
the CMA to create a group to which a join made by ipoib will fail, or
vise-versa.  Some of the component mask fields set by ipoib weren't
set by the CMA, fix that.

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:31:47 -07:00
Dotan Barak
d8c9166961 IB/core: Remove unused variables in ucm/ucma
Remove unused wait objects from ucm/ucma events flow.

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:31:46 -07:00
Linus Torvalds
a0d271cbfe Linux 3.6 2012-09-30 16:47:46 -07:00
Arnd Bergmann
901acf5b29 gpio: pcf857x: select IRQ_DOMAIN
Patch 6e20a0a4 "gpio: pcf857x: enable gpio_to_irq() support"
added IRQ domain support to the pcf857x driver, but some configurations
(e.g. davinci_all_defconfig) don't already enable CONFIG_IRQ_DOMAIN.

Always selecting it from the Kconfig in this case is what other
such drivers do as well, and avoids these build errors:

Without this patch, building davinci_all_defconfig results in:

drivers/gpio/gpio-pcf857x.c: In function 'pcf857x_to_irq':
drivers/gpio/gpio-pcf857x.c:167:2: error: implicit declaration of function 'irq_create_mapping'
drivers/gpio/gpio-pcf857x.c: In function 'pcf857x_irq_demux_work':
drivers/gpio/gpio-pcf857x.c:183:3: error: implicit declaration of function 'irq_find_mapping'
drivers/gpio/gpio-pcf857x.c: In function 'pcf857x_irq_domain_cleanup':
drivers/gpio/gpio-pcf857x.c:218:3: error: implicit declaration of function 'irq_domain_remove'
drivers/gpio/gpio-pcf857x.c: In function 'pcf857x_irq_domain_init':
drivers/gpio/gpio-pcf857x.c:230:2: error: implicit declaration of function 'irq_domain_add_linear'

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-30 23:38:53 +02:00
Roland Stigge
1ae963143e gpio: Document device_node's det_debounce
This patch adds documentation for set_debounce in struct device_node.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-30 10:27:01 +02:00
Roland Stigge
71fde00095 gpio-lpc32xx: Add GPI_28
This patch adds the missing gpi28 to the list of GPIOs in the GPI P3 "chip".

NOTE: This patch depends on incrementing LPC32XX_GPI_P3_MAX.  When applied
without the respective mach-lpc32xx patch (merged via arm-soc.git), gcc will
give a warning about "excess elements in array initializer" but this doesn't
harm.

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-30 10:25:45 +02:00
David S. Miller
a248afdc1b Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:

====================
Here is another batch of updates intended for 3.7...

Highlights include an hci_connect re-write in Bluetooth, HCI/LLC
layer separation in NFC, removal of the raw pn544 NFC driver, NFC LLCP
raw sockets support, improved IBSS auth frame handling in mac80211,
full-MAC AP mode notification support in mac80211, a lot of attention
paid to brcmfmac, and the usual level of updates to iwlwifi, ath9k,
mwifiex, and rt2x00, and various other updates.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:30:16 -04:00
Sathya Perla
d379142bc4 be2net: fixup log messages
Added and modified a few log messages mostly in probe path.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:15:34 -04:00
Sathya Perla
323ff71e56 be2net: cleanup code related to be_link_status_query()
1) link_status_query() is always called to query the link-speed (speed
after applying qos). When there is no qos setting, link-speed is derived from
port-speed. Do all this inside this routine and hide this from the callers.

2) adpater->phy.forced_port_speed is not being set anywhere after being
initialized. Get rid of this variable.

3) Ignore async link_speed notifications till the initial value has been
fetched from FW.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:15:34 -04:00
Sathya Perla
55f5c3c55b be2net: fix wrong handling of be_setup() failure in be_probe()
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:15:34 -04:00
Sathya Perla
5ee4979ba5 be2net: remove type argument of be_cmd_mac_addr_query()
All invocations of this routine use the same type value.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:15:34 -04:00
Michael Chan
cf6d6ea660 tg3: Disable multiple TX rings by default due to hardware flaw
Simple round-robin hardware TX scheduling can cause starvation of TX rings
with small packets when other TX rings have large TSO or jumbo packets.

In the simplest case, consider 2 TCP streams running in opposite
directions.  The TSO TX traffic will hash to one ring and the ACKs for the
incoming data on a different TCP connection will hash to a different TX
ring.  The hardware fetches one complete TSO packet (up to 64K data)
before servicing the other TX ring.  When it gets to the other TX ring, it
will only fetch one packet (64-byte ACK packet in this case).  After that,
it will switch back to the 1st ring filled with more TSO packets.  Because
only one ACK can go out roughly every 500 usec in this case, the incoming
data rate becomes very low.

Update version to 3.125.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:10:36 -04:00
Michael Chan
0968169c92 tg3: Add support for ethtool -L|-l to get/set the number of rings.
Default remains the same.

Reviewed-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:10:36 -04:00
Michael Chan
6513859479 tg3: Refactor tg3_close()
by introducing tg3_stop() that does the opposite of tg3_start().  This
function will be useful when adding the support for changing the numbe
of rx and tx rings.

Reviewed-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:10:35 -04:00
Michael Chan
d8f4cd3880 tg3: Refactor tg3_open()
by introducing tg3_start() that handles all initialization steps from
IRQ allocation.  This function will be needed when adding support for
changing the number of rx and tx rings.

Reviewed-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:10:35 -04:00
Michael Chan
a489b6d999 tg3: Separate coalescing setup for rx and tx
since the number of rings can be different.

Reviewed-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:10:35 -04:00
Michael Chan
9102426a87 tg3: Allow number of rx and tx rings to be set independently.
irq_cnt is no longer necessarily equal to the number rx or tx rings.

Reviewed-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:10:35 -04:00
Michael Chan
49a359e317 tg3: Introduce separate functions to allocate/free RX/TX rings.
This is preparation work to allow the number of RX and TX rings to be
configured separately.

Reviewed-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-30 02:10:35 -04:00
Miklos Szeredi
8110e16d42 vfs: dcache: fix deadlock in tree traversal
IBM reported a deadlock in select_parent().  This was found to be caused
by taking rename_lock when already locked when restarting the tree
traversal.

There are two cases when the traversal needs to be restarted:

 1) concurrent d_move(); this can only happen when not already locked,
    since taking rename_lock protects against concurrent d_move().

 2) racing with final d_put() on child just at the moment of ascending
    to parent; rename_lock doesn't protect against this rare race, so it
    can happen when already locked.

Because of case 2, we need to be able to handle restarting the traversal
when rename_lock is already held.  This patch fixes all three callers of
try_to_ascend().

IBM reported that the deadlock is gone with this patch.

[ I rewrote the patch to be smaller and just do the "goto again" if the
  lock was already held, but credit goes to Miklos for the real work.
   - Linus ]

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-09-29 17:41:40 -07:00
Rob Herring
1ec9c26ad0 ARM: add v7 multi-platform defconfig
Add a v7 defconfig enabling highbank, socfpga, mvebu, and vexpress
platforms and their drivers. Most other options are left to the default.

The existing individual platform defconfigs are kept for now as they are
a bit different. In some cases, the choices look pretty arbitrary and
just copied from other defconfigs.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Dinh Nguyen <dinguyen@altera.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-29 14:34:37 -07:00
Olof Johansson
b10dcdcac4 Merge tag 'ep93xx-fixes-for-3.7' of git://github.com/RyanMallon/linux-ep93xx into next/fixes-non-critical
From Ryan Mallon:

* tag 'ep93xx-fixes-for-3.7' of git://github.com/RyanMallon/linux-ep93xx:
  ARM: ep93xx: Move ts72xx.h out of include/mach
  ARM: ep93xx: use __iomem pointers for MMIO
  ARM: ep93xx: Fix build error due to 'SZ_32M' undeclared
2012-09-29 14:31:55 -07:00
Olof Johansson
b6e3b5c2fe Merge branch 'lpc32xx/core' of git://git.antcom.de/linux-2.6 into next/soc
From Roland Stigge, three more updates to lpc32xx.

* 'lpc32xx/core' of git://git.antcom.de/linux-2.6:
  ARM: LPC32xx: Support GPI 28
  ARM: LPC32xx: Platform update for devicetree completion of spi-pl022
  ARM: LPC32xx: Board cleanup
2012-09-29 14:29:51 -07:00
Olof Johansson
99261fbad0 Merge branch 'lpc32xx/dts' of git://git.antcom.de/linux-2.6 into next/dt
From Roland Stigge. Pulling in one bugfix to the lpc32xx DT conversion.

* 'lpc32xx/dts' of git://git.antcom.de/linux-2.6:
  ARM: LPC32xx: LED fix in PHY3250 DTS file
2012-09-29 14:26:35 -07:00
Olof Johansson
325f067133 Merge branch 'vt8500/devel' into next/dt
Picked up one more bugfix by Tony Prisk:
* vt8500/devel:
  arm: vt8500: Fixup for missing gpio.h
2012-09-29 14:14:37 -07:00
Tony Prisk
075954b1a9 arm: vt8500: Fixup for missing gpio.h
mach/include/gpio.h was removed as part of the multiplatform-3.7
update. This patch removes the include from arch-vt8500/vt8500.c

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-29 14:14:25 -07:00
Olof Johansson
9cf1c87152 These board and platform related patches have been posted
quite a while ago but have somehow fallen though the cracks
 as most of the focus has been making things to work with
 device tree. As the first patch depends on sparse IRQ
 related removal of irqs.h and related header moves, these
 are based on omap-cleanup-local-headers-for-v3.7 tag.
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Merge tag 'omap-devel-board-late-v3-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

From Tony Lindgren:

These board and platform related patches have been posted
quite a while ago but have somehow fallen though the cracks
as most of the focus has been making things to work with
device tree. As the first patch depends on sparse IRQ
related removal of irqs.h and related header moves, these
are based on omap-cleanup-local-headers-for-v3.7 tag.

* tag 'omap-devel-board-late-v3-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: serial: Change MAX_HSUART_PORTS to 6
  ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus
2012-09-29 14:01:47 -07:00
Olof Johansson
d5f73cd6e2 Few late patches to enable arch timer for omap5
using device tree.
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Merge tag 'devel-dt-arch-timer-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt

From Tony Lindgren:

Few late patches to enable arch timer for omap5
using device tree.

* tag 'devel-dt-arch-timer-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP5: Enable arch timer support
  ARM: OMAP: Add initialisation for the real-time counter.
2012-09-29 13:54:59 -07:00
Josh Triplett
2223af3890 efi: Fix the ACPI BGRT driver for images located in EFI boot services memory
The ACPI BGRT driver accesses the BIOS logo image when it initializes.
However, ACPI 5.0 (which introduces the BGRT) recommends putting the
logo image in EFI boot services memory, so that the OS can reclaim that
memory.  Production systems follow this recommendation, breaking the
ACPI BGRT driver.

Move the bulk of the BGRT code to run during a new EFI late
initialization phase, which occurs after switching EFI to virtual mode,
and after initializing ACPI, but before freeing boot services memory.
Copy the BIOS logo image to kernel memory at that point, and make it
accessible to the BGRT driver.  Rework the existing ACPI BGRT driver to
act as a simple wrapper exposing that image (and the properties from the
BGRT) via sysfs.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Link: http://lkml.kernel.org/r/93ce9f823f1c1f3bb88bdd662cce08eee7a17f5d.1348876882.git.josh@joshtriplett.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-09-29 12:21:03 -07:00
Josh Triplett
7bc90e01c3 efi: Add a function to look up existing IO memory mappings
The EFI initialization creates virtual mappings for EFI boot services
memory, so if a driver wants to access EFI boot services memory, it
cannot call ioremap itself; doing so will trip the WARN about mapping
RAM twice.  Thus, a driver accessing EFI boot services memory must do so
via the existing mapping already created during EFI intiialization.
Since the EFI code already maintains a memory map for that memory, add a
function efi_lookup_mapped_addr to look up mappings in that memory map.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Link: http://lkml.kernel.org/r/0eb48ae012797912874919110660ad420b90268b.1348876882.git.josh@joshtriplett.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-09-29 12:21:02 -07:00
Josh Triplett
785107923a efi: Defer freeing boot services memory until after ACPI init
Some new ACPI 5.0 tables reference resources stored in boot services
memory, so keep that memory around until we have ACPI and can extract
data from it.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Link: http://lkml.kernel.org/r/baaa6d44bdc4eb0c58e5d1b4ccd2c729f854ac55.1348876882.git.josh@joshtriplett.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-09-29 12:21:01 -07:00
Olof Johansson
4b1ebb64ab Merge branch 'dt2' of git://github.com/hzhuang1/linux into next/dt
From Haojian Zhuang:
* 'dt2' of git://github.com/hzhuang1/linux:
  ARM: dt: mmp-dma: add binding file
2012-09-29 11:43:51 -07:00
Olof Johansson
6fd9b70e1b Merge branch 'next/dt-samsung-new' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt2
From Kukjin Kim:

* 'next/dt-samsung-new' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: dts: Add nodes for dw_mmc controllers for Samsung EXYNOS5250 platforms
  ARM: EXYNOS: Add AUXDATA support for MSHC controllers
  ARM: EXYNOS: Add support for MSHC controller clocks
  ARM: dts: Enable on-board keys as wakeup source for exynos4210-origen
  ARM: dts: use uart2 for console on smdkv310 and smdk5250
  ARM: dts: Add basic dts file for Samsung Trats board
  ARM: EXYNOS: Add OF compatibility lookups for EXYNOS4 i2c adapters
  ARM: dts: Specify address and size cells for i2c controllers for EXYNOS4
  ARM: dts: Assume status of all optional nodes as disabled for exynos4
  ARM: EXYNOS: Use exynos4 prefix instead of exynos4210 on exynos4-dt
  ARM: dts: Move parts common to EXYNOS4 from exynos4210.dtsi to exynos4.dtsi
2012-09-29 11:30:23 -07:00
Olof Johansson
f514202112 Merge branch 'samsung/pinctrl' into next/dt2
* samsung/pinctrl:
  pinctrl: exynos: Fix wakeup IRQ domain registration check
  pinctrl: samsung: Uninline samsung_pinctrl_get_soc_data
  pinctrl: exynos: Correct the detection of wakeup-eint node
  pinctrl: exynos: Mark exynos_irq_demux_eint as inline
  pinctrl: exynos: Handle only unmasked wakeup interrupts
  pinctrl: exynos: Fix typos in gpio/wkup _irq_mask
  pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa
  ARM: EXYNOS: Enable pinctrl driver support for EXYNOS4 device tree enabled platform
  ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC
  ARM: EXYNOS: skip wakeup interrupt setup if pinctrl driver is used
  gpio: exynos4: skip gpiolib registration if pinctrl driver is used
  pinctrl: add exynos4210 specific extensions for samsung pinctrl driver
  pinctrl: add samsung pinctrl and gpiolib driver
2012-09-29 11:30:11 -07:00
Olof Johansson
6590147b62 Merge branch 'samsung/boards' into next/dt2
* samsung/boards:
  ARM: EXYNOS: Add generic PWM lookup support for SMDKV310
  ARM: EXYNOS: Add generic PWM lookup support for SMDK4X12
  ARM: EXYNOS: Use generic pwm driver in Origen board
  ARM: dts: Add heartbeat gpio-leds support to Origen
  ARM: dts: Use active low flag for gpio-keys on Origen
  ARM: S3C64XX: Register audio platform devices for Bells on Cragganmore
  ARM: S3C64XX: Update configuration for WM5102 module on Cragganmore

Add/add conflict in arch/arm/mach-exynos/mach-smdkv310.c.

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-29 11:28:41 -07:00
Linus Torvalds
6a3e3dbee6 IOMMU fixes for Linux v3.6-rc7
Two small patches:
 
 	* One patch to fix the function declarations for
 	  !CONFIG_IOMMU_API. This is causing build errors
 	  in linux-next and should be fixed for v3.6.
 
 	* Another patch to fix an IOMMU group related NULL pointer
 	  dereference.
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Merge tag 'iommu-fixes-v3.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:
 "Two small patches:

	* One patch to fix the function declarations for
	  !CONFIG_IOMMU_API. This is causing build errors
	  in linux-next and should be fixed for v3.6.

	* Another patch to fix an IOMMU group related NULL pointer
	  dereference."

* tag 'iommu-fixes-v3.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Fix wrong assumption in iommu-group specific code
  iommu: static inline iommu group stub functions
2012-09-29 10:37:04 -07:00
Linus Torvalds
21e98932dc Merge git://git.infradead.org/users/willy/linux-nvme
Pull NVMe driver fixes from Matthew Wilcox:
 "Now that actual hardware has been released (don't have any yet
  myself), people are starting to want some of these fixes merged."

Willy doesn't have hardware? Guys...

* git://git.infradead.org/users/willy/linux-nvme:
  NVMe: Cancel outstanding IOs on queue deletion
  NVMe: Free admin queue memory on initialisation failure
  NVMe: Use ida for nvme device instance
  NVMe: Fix whitespace damage in nvme_init
  NVMe: handle allocation failure in nvme_map_user_pages()
  NVMe: Fix uninitialized iod compiler warning
  NVMe: Do not set IO queue depth beyond device max
  NVMe: Set block queue max sectors
  NVMe: use namespace id for nvme_get_features
  NVMe: replace nvme_ns with nvme_dev for user admin
  NVMe: Fix nvme module init when nvme_major is set
  NVMe: Set request queue logical block size
2012-09-29 10:31:52 -07:00
Ingo Molnar
39ba5010d3 Option to let the bios set per-bank CMCI thresholds so they can
filter noisy error sources at a fine grained level based on platform
 specific knowledge.
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Merge tag 'please-pull-naveen' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/mce

Pull MCE updates from Tony Luck:

 "Option to let the bios set per-bank CMCI thresholds so they can
  filter noisy error sources at a fine grained level based on platform
  specific knowledge."

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-09-29 10:16:29 +02:00
Lin Ming
188c517a05 ipv6: return errno pointers consistently for fib6_add_1()
fib6_add_1() should consistently return errno pointers,
rather than a mixture of NULL and errno pointers.

Signed-off-by: Lin Ming <mlin@ss.pku.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-28 18:48:28 -04:00