105797 Commits

Author SHA1 Message Date
Linus Torvalds
5d7e8af3c5 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (26 commits)
  MIPS: Malta: enable Cirrus FB console
  MIPS: add CONFIG_VIRTUALIZATION for virtio support
  MIPS: Implement __read_mostly
  MIPS: ath79: add common WMAC device for AR913X based boards
  MIPS: ath79: Add initial support for the Atheros AP81 reference board
  MIPS: ath79: add common SPI controller device
  SPI: Add SPI controller driver for the Atheros AR71XX/AR724X/AR913X SoCs
  MIPS: ath79: add common GPIO buttons device
  MIPS: ath79: add common watchdog device
  MIPS: ath79: add common GPIO LEDs device
  MIPS: ath79: add initial support for the Atheros PB44 reference board
  MIPS: ath79: utilize the MIPS multi-machine support
  MIPS: ath79: add GPIOLIB support
  MIPS: Add initial support for the Atheros AR71XX/AR724X/AR931X SoCs
  MIPS: jump label: Add MIPS support.
  MIPS: Use WARN() in uasm for better diagnostics.
  MIPS: Optimize TLB handlers for Octeon CPUs
  MIPS: Add LDX and LWX instructions to uasm.
  MIPS: Use BBIT instructions in TLB handlers
  MIPS: Declare uasm bbit0 and bbit1 functions.
  ...
2011-01-18 14:28:48 -08:00
David S. Miller
f966a13f92 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2011-01-18 12:50:19 -08:00
Guenter Roeck
c7bf71c517 hwmon: (lm93) Add support for LM94
This patch adds basic support for LM94 to the LM93 driver. LM94 specific
sensors and features are not supported.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
2011-01-18 12:22:54 -08:00
Wey-Yi Guy
38d59392b2 iwlwifi: fix valid chain reading from EEPROM
When read valid tx/rx chains from EEPROM, there is a bug to use the
tx chain value for both tx and rx, the result of this cause low
receive throughput on 1x2 devices becuase rx will only utilize single
chain instead of two chains

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-18 15:10:31 -05:00
Bob Copeland
599b13adc2 ath5k: fix locking in tx_complete_poll_work
ath5k_reset must be called with sc->lock.  Since the tx queue
watchdog runs in a workqueue and accesses sc, it's appropriate
to just take the lock over the whole function.

Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-18 15:10:31 -05:00
Gabor Juhos
8efaef4dc8 SPI: Add SPI controller driver for the Atheros AR71XX/AR724X/AR913X SoCs
The Atheros AR71XX/AR724X/AR913X SoCs have a built-in SPI controller. This
patch implements a driver for that.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: spi-devel-general@lists.sourceforge.net
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: linux-mips@linux-mips.org
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Luis R. Rodriguez <lrodriguez@atheros.com>
Cc: Cliff Holden <Cliff.Holden@Atheros.com>
Cc: Kathy Giori <Kathy.Giori@Atheros.com>
Patchwork: https://patchwork.linux-mips.org/patch/1960/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-01-18 19:30:27 +01:00
Andres Salomon
e6f597a142 staging: fix build failure in bcm driver
While building latest Linus git, I hit the following:

    CC [M]  drivers/staging/bcm/Qos.o
  drivers/staging/bcm/Qos.c: In function ‘PruneQueue’:
  drivers/staging/bcm/Qos.c:367: error: ‘struct netdev_queue’ has no member named ‘tx_dropped’
  drivers/staging/bcm/Qos.c: In function ‘flush_all_queues’:
  drivers/staging/bcm/Qos.c:416: error: ‘struct netdev_queue’ has no member named ‘tx_dropped’
  make[5]: *** [drivers/staging/bcm/Qos.o] Error 1
  make[4]: *** [drivers/staging/bcm] Error 2
  make[3]: *** [drivers/staging] Error 2

As well as:

    CC [M]  drivers/staging/bcm/Transmit.o
  drivers/staging/bcm/Transmit.c: In function ‘SetupNextSend’:
  drivers/staging/bcm/Transmit.c:163: error: ‘struct netdev_queue’ has no member named ‘tx_bytes’
  drivers/staging/bcm/Transmit.c:164: error: ‘struct netdev_queue’ has no member named ‘tx_packets’
  make[2]: *** [drivers/staging/bcm/Transmit.o] Error 1

tx_dropped/tx_bytes_tx_packets were removed in commit 1ac9ad13.  This patch
converts bcm to use net_device_stats instead of netdev_queue.

Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-17 17:39:39 -08:00
Linus Torvalds
6845a44a31 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA: Update workqueue usage
  RDMA/nes: Fix incorrect SFP+ link status detection on driver init
  RDMA/nes: Fix SFP+ link down detection issue with switch port disable
  RDMA/nes: Generate IB_EVENT_PORT_ERR/PORT_ACTIVE events
  RDMA/nes: Fix bonding on iw_nes
  IB/srp: Test only once whether iu allocation succeeded
  IB/mlx4: Handle protocol field in multicast table
  RDMA: Use vzalloc() to replace vmalloc()+memset(0)
  mlx4_{core, ib, en}: Fix driver when sizeof (phys_addr_t) > sizeof (long)
  IB/mthca: Fix driver when sizeof (phys_addr_t) > sizeof (long)
2011-01-17 14:45:48 -08:00
Rajkumar Manoharan
811ea256b3 ath9k_hw: do PA offset calibration only on longcal interval
The power detector adc offset calibration has to be done
on 4 minutes interval (longcal * pa_skip_count). But the commit
"ath9k_hw: fix a noise floor calibration related race condition"
makes the PA calibration executed more frequently beased on
nfcal_pending value. Running PAOffset calibration lesser than
longcal interval doesn't help anything and the worse part is that
it causes NF load timeouts and RX deaf conditions.

In a very noisy environment, where the distance b/w AP & station
is ~10 meter and running a downlink udp traffic with frequent
background scan causes "Timeout while waiting for nf to load:
AR_PHY_AGC_CONTROL=0x40d1a" and moves the chip into deaf state.
This issue was originaly reported in Android platform where
the network-manager application does bgscan more frequently
on AR9271 chips. (AR9285 family usb device).

Cc: stable@kernel.org
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-17 16:09:03 -05:00
Rajkumar Manoharan
dc738cb6c5 ath9k_htc: Fix endian issue in tx header
Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-17 16:09:03 -05:00
Luis R. Rodriguez
58c5296991 ath9k_hw: ASPM interoperability fix for AR9380/AR9382
There is an interoperability with AR9382/AR9380 in L1 state with a
few root complexes which can cause a hang. This is fixed by
setting some work around bits on the PCIE PHY. We fix by using
a new ini array to modify these bits when the radio is idle.

Cc: stable@kernel.org
Cc: Jack Lee <jack.lee@atheros.com>
Cc: Carl Huang <carl.huang@atheros.com>
Cc: David Quan <david.quan@atheros.com>
Cc: Nael Atallah <nael.atallah@atheros.com>
Cc: Sarvesh Shrivastava <sarvesh.shrivastava@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-17 16:09:02 -05:00
Linus Torvalds
8c34482c17 Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  spi/spi_sh_msiof: fix a wrong free_irq() parameter
  dt/flattree: Return virtual address from early_init_dt_alloc_memory_arch()
2011-01-17 11:18:40 -08:00
Linus Torvalds
ab2020f2f1 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (59 commits)
  mtd: mtdpart: disallow reading OOB past the end of the partition
  mtd: pxa3xx_nand: NULL dereference in pxa3xx_nand_probe
  UBI: use mtd->writebufsize to set minimal I/O unit size
  mtd: initialize writebufsize in the MTD object of a partition
  mtd: onenand: add mtd->writebufsize initialization
  mtd: nand: add mtd->writebufsize initialization
  mtd: cfi: add writebufsize initialization
  mtd: add writebufsize field to mtd_info struct
  mtd: OneNAND: OMAP2/3: prevent regulator sleeping while OneNAND is in use
  mtd: OneNAND: add enable / disable methods to onenand_chip
  mtd: m25p80: Fix JEDEC ID for AT26DF321
  mtd: txx9ndfmc: limit transfer bytes to 512 (ECC provides 6 bytes max)
  mtd: cfi_cmdset_0002: add support for Samsung K8D3x16UxC NOR chips
  mtd: cfi_cmdset_0002: add support for Samsung K8D6x16UxM NOR chips
  mtd: nand: ams-delta: drop omap_read/write, use ioremap
  mtd: m25p80: add debugging trace in sst_write
  mtd: nand: ams-delta: select for built-in by default
  mtd: OneNAND: lighten scary initial bad block messages
  mtd: OneNAND: OMAP2/3: add support for command line partitioning
  mtd: nand: rearrange ONFI revision checking, add ONFI 2.3
  ...

Fix up trivial conflict in drivers/mtd/Kconfig as per DavidW.
2011-01-17 11:15:30 -08:00
Linus Torvalds
235646a486 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  fs: fix address space warnings in ioctl_fiemap()
  aio: check return value of create_workqueue()
  hpfs_setattr error case avoids unlock_kernel
  compat: copy missing fields in compat_statfs64 to user
  compat: update comment of compat statfs syscalls
  compat: remove unnecessary assignment in compat_rw_copy_check_uvector()
  fs: FS_POSIX_ACL does not depend on BLOCK
  fs: Remove unlikely() from fget_light()
  fs: Remove unlikely() from fput_light()
  fallocate should be a file operation
  make the feature checks in ->fallocate future proof
  staging: smbfs building fix
  tidy up around finish_automount()
  don't drop newmnt on error in do_add_mount()
  Take the completion of automount into new helper
2011-01-17 11:00:09 -08:00
Linus Torvalds
584ef2cd70 Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: balance asic_reset functions
  drm/radeon/kms: remove duplicate card_posted() functions
  drm/radeon/kms: add module option for pcie gen2
  drm/radeon/kms: fix typo in evergreen safe reg
  drm/nouveau: fix gpu page faults triggered by plymouthd
  drm/nouveau: greatly simplify mm, killing some bugs in the process
  drm/nvc0: enable protection of system-use-only structures in vm
  drm/nv40: initialise 0x17xx on all chipsets that have it
  drm/nv40: make detection of 0x4097-ful chipsets available everywhere
2011-01-17 10:57:59 -08:00
Linus Torvalds
e1288cd72f Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (63 commits)
  ARM: PL08x: cleanup comments
  Update CONFIG_MD_RAID6_PQ to CONFIG_RAID6_PQ in drivers/dma/iop-adma.c
  ARM: PL08x: fix a warning
  Fix dmaengine_submit() return type
  dmaengine: at_hdmac: fix race while monitoring channel status
  dmaengine: at_hdmac: flags located in first descriptor
  dmaengine: at_hdmac: use subsys_initcall instead of module_init
  dmaengine: at_hdmac: no need set ACK in new descriptor
  dmaengine: at_hdmac: trivial add precision to unmapping comment
  dmaengine: at_hdmac: use dma_address to program DMA hardware
  pch_dma: support new device ML7213 IOH
  ARM: PL08x: prevent dma_set_runtime_config() reconfiguring memcpy channels
  ARM: PL08x: allow dma_set_runtime_config() to return errors
  ARM: PL08x: fix locking between prepare function and submit function
  ARM: PL08x: introduce 'phychan_hold' to hold on to physical channels
  ARM: PL08x: put txd's on the pending list in pl08x_tx_submit()
  ARM: PL08x: rename 'desc_list' as 'pend_list'
  ARM: PL08x: implement unmapping of memcpy buffers
  ARM: PL08x: store prep_* flags in async_tx structure
  ARM: PL08x: shrink srcbus/dstbus in txd structure
  ...
2011-01-17 10:54:41 -08:00
Guennadi Liakhovetski
d95defaca7 spi/spi_sh_msiof: fix a wrong free_irq() parameter
Without this fix reloading of the driver is impossible.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-01-17 10:17:36 -07:00
Artem Bityutskiy
154bf89f5e mtd: mtdpart: disallow reading OOB past the end of the partition
This patch fixes the mtdpart bug which allows users reading OOB past the
end of the partition. This happens because 'part_read_oob()' allows reading
multiple OOB areas in one go, and mtdparts does not validate the OOB
length in the request.

Although there is such check in 'nand_do_read_oob()' in nand_base.c, but
it checks that we do not read past the flash chip, not the partition,
because in nand_base.c we work with the whole chip (e.g., mtd->size
in nand_base.c is the size of the whole chip). So this check cannot
be done correctly in nand_base.c and should be instead done in mtdparts.c.

This problem was reported by Jason Liu <r64343@freescale.com> and reproduced
with nandsim:

$ modprobe nandsim first_id_byte=0x20 second_id_byte=0xaa third_id_byte=0x00 \
                   fourth_id_byte=0x15 parts=0x400,0x400
$ modprobe nandsim mtd_oobtest.ko dev=0
$ dmesg
= snip =
mtd_oobtest: attempting to read past end of device
mtd_oobtest: an error is expected...
mtd_oobtest: error: read past end of device
= snip =
mtd_oobtest: finished with 2 errors

Reported-by: Jason Liu <liu.h.jason@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-01-17 15:25:48 +00:00
Yang Ruirui
eb745dbccc staging: smbfs building fix
Building error for smbfs:

drivers/staging/smbfs/dir.c:286: error: static declaration of 'smbfs_dentry_operations' follows non-static declaration
drivers/staging/smbfs/proto.h:42: error: previous declaration of 'smbfs_dentry_operations' was here
drivers/staging/smbfs/dir.c:294: error: static declaration of 'smbfs_dentry_operations_case' follows non-static declaration
drivers/staging/smbfs/proto.h:41: error: previous declaration of 'smbfs_dentry_operations_case' was here
make[3]: *** [drivers/staging/smbfs/dir.o] Error 1
make[2]: *** [drivers/staging/smbfs] Error 2
make[1]: *** [drivers/staging] Error 2
make[1]: *** Waiting for unfinished jobs....

Fix it by removing static keywords

Signed-off-by: Yang Ruirui <ruirui.r.yang@tieto.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-17 01:50:52 -05:00
Roland Dreier
4790f4dc5f Merge branches 'misc', 'mlx4', 'mthca', 'nes' and 'srp' into for-next 2011-01-16 21:22:41 -08:00
Tejun Heo
f06267104d RDMA: Update workqueue usage
* ib_wq is added, which is used as the common workqueue for infiniband
  instead of the system workqueue.  All system workqueue usages
  including flush_scheduled_work() callers are converted to use and
  flush ib_wq.

* cancel_delayed_work() + flush_scheduled_work() converted to
  cancel_delayed_work_sync().

* qib_wq is removed and ib_wq is used instead.

This is to prepare for deprecation of flush_scheduled_work().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-16 21:16:31 -08:00
Alex Deucher
25b2ec5b64 drm/radeon/kms: balance asic_reset functions
First, we were calling mc_stop() at the top of the function
which turns off all MC (memory controller) clients,
then checking if the GPU is idle.  If it was idle we
returned without re-enabling the MC clients which would
lead to a blank screen, etc.  This patch checks if the
GPU is idle before calling mc_stop().

Second, if the reset failed, we were returning without
re-enabling the MC clients.  This patch re-enables
the MC clients before returning regardless of whether
the reset was successful or not.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-01-17 12:21:57 +10:00
Alex Deucher
fd909c3718 drm/radeon/kms: remove duplicate card_posted() functions
Use the common one for all asics.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-01-17 12:21:38 +10:00
Alex Deucher
d42dd579ac drm/radeon/kms: add module option for pcie gen2
Switching to pcie gen2 causes problems on some
boards.  Add a module option to turn it on/off.

There are gen2 compatability issues with some
motherboards it seems.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=33027

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-01-17 12:21:34 +10:00
Alex Deucher
394d83c17f drm/radeon/kms: fix typo in evergreen safe reg
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-01-17 12:20:55 +10:00
Dave Airlie
51fda92223 Merge remote branch 'nouveau/drm-nouveau-next' of /ssd/git/drm-nouveau-next into drm-fixes
* 'nouveau/drm-nouveau-next' of /ssd/git/drm-nouveau-next:
  drm/nouveau: fix gpu page faults triggered by plymouthd
  drm/nouveau: greatly simplify mm, killing some bugs in the process
  drm/nvc0: enable protection of system-use-only structures in vm
  drm/nv40: initialise 0x17xx on all chipsets that have it
  drm/nv40: make detection of 0x4097-ful chipsets available everywhere
2011-01-17 12:20:31 +10:00
Ben Skeggs
f01a9720cb drm/nouveau: fix gpu page faults triggered by plymouthd
The switch to separate BAR and channel address spaces made the fbcon memory
address calculation incorrect on NV50+ boards, this commit fixes that.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-17 11:28:59 +10:00
Ben Skeggs
8b464bfed6 drm/nouveau: greatly simplify mm, killing some bugs in the process
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-17 11:28:54 +10:00
Ben Skeggs
c906ca0fbf drm/nvc0: enable protection of system-use-only structures in vm
Somehow missed this in the original merge of the nvc0 code.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-17 11:28:50 +10:00
Ben Skeggs
1380da4979 drm/nv40: initialise 0x17xx on all chipsets that have it
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-17 11:28:43 +10:00
Ben Skeggs
c693931d93 drm/nv40: make detection of 0x4097-ful chipsets available everywhere
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2011-01-17 11:28:31 +10:00
Andrew Morton
e78bf5e6cb drivers/nfc/pn544.c: fix min_t warnings
Fix these:

  drivers/nfc/pn544.c: In function 'pn544_read':
  drivers/nfc/pn544.c:356: warning: comparison of distinct pointer types lacks a cast
  drivers/nfc/pn544.c:377: warning: comparison of distinct pointer types lacks a cast
  drivers/nfc/pn544.c: In function 'pn544_write':
  drivers/nfc/pn544.c:463: warning: comparison of distinct pointer types lacks a cast
  drivers/nfc/pn544.c:485: warning: comparison of distinct pointer types lacks a cast

Cc: "Matti J. Aaltonen" <matti.j.aaltonen@nokia.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-16 17:28:21 -08:00
Russell King - ARM Linux
94ae85220a ARM: PL08x: cleanup comments
Cleanup the formatting of comments, remove some which don't make sense
anymore.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[fix conflict with 96a608a4]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2011-01-16 16:55:43 -08:00
Linus Torvalds
8a335bc631 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/scsi-post-merge-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/scsi-post-merge-2.6:
  ocfs2: Make OCFS2_FS depend on CONFIGFS_FS
  dlm: Make DLM depend on CONFIGFS_FS
  net: Make NETCONSOLE_DYNAMIC depend on CONFIGFS_FS
  configfs: change depends -> select SYSFS
  [SCSI] sd,sr: kill compat SDEV_MEDIA_CHANGE event
  [SCSI] sd: implement sd_check_events()
2011-01-16 15:06:43 -08:00
Maciej Sosnowski
843276ad98 RDMA/nes: Fix incorrect SFP+ link status detection on driver init
During iw_nes initialization the link status for SFP+ PHY is always
detected as "up" regardless of real state (cable either connected or
disconnected).  Add SFP+ PHY specific link status detection to the
iw_nes initialization procedure.  Use link status recheck for
netdev_open to detect delayed state updates.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-16 13:23:35 -08:00
Maciej Sosnowski
5f61b2c693 RDMA/nes: Fix SFP+ link down detection issue with switch port disable
In case of SFP+ PHY, link status check at interrupt processing can
give false results.  For proper link status change detection a delayed
recheck is needed to give nes registers time to settle.  Add a
periodic link status recheck scheduled at interrupt to detect
potential delayed registers state changes.

Addresses: http://bugs.openfabrics.org/bugzilla/show_bug.cgi?id=2117
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-16 13:23:34 -08:00
Maciej Sosnowski
ea623455b7 RDMA/nes: Generate IB_EVENT_PORT_ERR/PORT_ACTIVE events
Depending on link state change, IB_EVENT_PORT_ERR or
IB_EVENT_PORT_ACTIVE should be generated when handling MAC interrupts.

Plugging in a cable happens to result in series of interrupts changing
driver's link state a number of times before finally staying at link
up (e.g. link up, link down, link up, link down, ..., link up).  To
prevent sending series of redundant IB_EVENT_PORT_ACTIVE and
IB_EVENT_PORT_ERR events, we use a timer to debounce them in
nes_port_ibevent().

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-16 13:23:34 -08:00
Maciej Sosnowski
2a4c97ead4 RDMA/nes: Fix bonding on iw_nes
Enable configuring bonds on nes devices by adding missing support for
master net_device to the driver.

Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2011-01-16 13:23:33 -08:00
Nicholas Bellinger
d9f9ab51e5 net: Make NETCONSOLE_DYNAMIC depend on CONFIGFS_FS
This patch fixes the following kconfig error after changing
CONFIGFS_FS -> select SYSFS:

fs/sysfs/Kconfig:1:error: recursive dependency detected!
fs/sysfs/Kconfig:1:	symbol SYSFS is selected by CONFIGFS_FS
fs/configfs/Kconfig:1:	symbol CONFIGFS_FS is selected by NETCONSOLE_DYNAMIC
drivers/net/Kconfig:3390:	symbol NETCONSOLE_DYNAMIC depends on SYSFS

Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: James Bottomley <James.Bottomley@suse.de>
2011-01-16 21:22:34 +00:00
Rafael J. Wysocki
d3072e6a7e ACPI: Fix boot problem related to APEI with acpi_disabled set
Commit 415e12b23792 ("PCI/ACPI: Request _OSC control once for each root
bridge (v3)") put the acpi_hest_init() call in acpi_pci_root_init() into
a wrong place, presumably because the author confused acpi_pci_disabled
with acpi_disabled.  Bring the code ordering in acpi_pci_root_init()
back to sanity.

Additionally, make sure that hest_disable is set when acpi_disabled is
set, which is going to prevent acpi_hest_parse(), that still may be
executed for acpi_disabled=1 through aer_acpi_firmware_first(), from
crashing because of uninitialized hest_tab.

Reported-and-tested-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-16 11:56:26 -08:00
Linus Torvalds
f8206b925f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (23 commits)
  sanitize vfsmount refcounting changes
  fix old umount_tree() breakage
  autofs4: Merge the remaining dentry ops tables
  Unexport do_add_mount() and add in follow_automount(), not ->d_automount()
  Allow d_manage() to be used in RCU-walk mode
  Remove a further kludge from __do_follow_link()
  autofs4: Bump version
  autofs4: Add v4 pseudo direct mount support
  autofs4: Fix wait validation
  autofs4: Clean up autofs4_free_ino()
  autofs4: Clean up dentry operations
  autofs4: Clean up inode operations
  autofs4: Remove unused code
  autofs4: Add d_manage() dentry operation
  autofs4: Add d_automount() dentry operation
  Remove the automount through follow_link() kludge code from pathwalk
  CIFS: Use d_automount() rather than abusing follow_link()
  NFS: Use d_automount() rather than abusing follow_link()
  AFS: Use d_automount() rather than abusing follow_link()
  Add an AT_NO_AUTOMOUNT flag to suppress terminal automount
  ...
2011-01-16 11:31:50 -08:00
Al Viro
f03c65993b sanitize vfsmount refcounting changes
Instead of splitting refcount between (per-cpu) mnt_count
and (SMP-only) mnt_longrefs, make all references contribute
to mnt_count again and keep track of how many are longterm
ones.

Accounting rules for longterm count:
	* 1 for each fs_struct.root.mnt
	* 1 for each fs_struct.pwd.mnt
	* 1 for having non-NULL ->mnt_ns
	* decrement to 0 happens only under vfsmount lock exclusive

That allows nice common case for mntput() - since we can't drop the
final reference until after mnt_longterm has reached 0 due to the rules
above, mntput() can grab vfsmount lock shared and check mnt_longterm.
If it turns out to be non-zero (which is the common case), we know
that this is not the final mntput() and can just blindly decrement
percpu mnt_count.  Otherwise we grab vfsmount lock exclusive and
do usual decrement-and-check of percpu mnt_count.

For fs_struct.c we have mnt_make_longterm() and mnt_make_shortterm();
namespace.c uses the latter in places where we don't already hold
vfsmount lock exclusive and opencodes a few remaining spots where
we need to manipulate mnt_longterm.

Note that we mostly revert the code outside of fs/namespace.c back
to what we used to have; in particular, normal code doesn't need
to care about two kinds of references, etc.  And we get to keep
the optimization Nick's variant had bought us...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-16 13:47:07 -05:00
Shreyas Bhatewara
7e96fbf232 vmxnet3: Dont allocate extra MSI-x vectors
In case of single tx and rx queues, three MSI-x vectors are allocated instead
of two. This patch fixes that.

Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-15 21:21:14 -08:00
Shreyas Bhatewara
83d0feffc5 vmxnet3: Add locking for access to command register
Access to cmd register is racey, especially in smp environments. Protect
it using a spinlock.

Signed-off-by: Matthieu Bucchianeri <matthieu@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-15 21:21:14 -08:00
Shreyas Bhatewara
51956cd68b vmxnet3: Disable napi in suspend, reenable in resume.
There is a small possibility of a race where the suspend routine gets
called, while a napi callback is still pending and when that comes up,
it enables interrupts which just got disabled in the suspend routine.
This change adds napi disable call in suspend and enable in resume to
avoid race.

Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Acked-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-15 21:21:13 -08:00
Shreyas Bhatewara
76d39dae0a vmxnet3: Make ethtool handlers multiqueue aware
Show per-queue stats in ethtool -S output for vmxnet3 interface. Register dump
of ethtool should dump registers for all tx and rx queues.

Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-15 21:21:13 -08:00
Shreyas Bhatewara
39d4a96fd7 vmxnet3: Provide required number of bytes in first SG buffer
This is a performance enhancement fix. vmxnet3 device performs better when
provided with at least 54 bytes (ethernet 14 + IP 20+ TCP 20) in the first SG
buffer. For UDP packets driver provides lesser than that in first sg. This
change fixes the same. Also avoid the redundant pskb_may_pull() call.

Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-15 21:21:12 -08:00
Shreyas Bhatewara
54da3d00f6 vmxnet3: Enable HW Rx VLAN stripping by default
Make hw vlan tag stripping as enabled by default. Thereby remove
the code to conditionally enable it later.

Signed-off-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-15 21:21:12 -08:00
Shreyas Bhatewara
f9f2502626 vmxnet3: Preserve the MAC address configured by ifconfig
While activating the device get it's MAC address from netdev. This will allow
the MAC address configured using ifconfig to persist through the reset.

Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-15 21:21:11 -08:00
Shreyas Bhatewara
a53255d38e vmxnet3: fix ring size update
Fix a bug while changing ring size when MTU is changed.

Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Acked-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-15 21:21:11 -08:00