161755 Commits

Author SHA1 Message Date
Yaniv Rosner
fd5dfca79a bnx2x: Change duplex setting in EEE function
This is not a real problem, since the EEE is supported for devices where the
actual_phy_selection is zero, such that the req_duplex of params will match
the one of the phy struct.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:22 -05:00
Yaniv Rosner
52160da71a bnx2x: Add warning message in case of non-10G SFP module
The string was split to several lines since it reached over 180 chars, which
seems too much.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:22 -05:00
Yaniv Rosner
503976e998 bnx2x: Cosmetic changes
This patch makes some cosmetic changes to the code:
1. Code alignment.
2. Merge read-modify-write into a single function (read_or_write /
read_and_write).
3. Merge several write registers into a for-loop write using a static array.
4. Remove empty lines.
5. Fix comments.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:22 -05:00
Yaniv Rosner
8203c4b6c9 bnx2x: Always take PHY lock
Taking PHY lock is not required on some older designs, but we are removing this
complication and always taking it since it is always required on newer designs
and does not worth the code complication on the older boards.

Taking PHY lock was initially required only on specific boards which had their
MDC/MDIO bus crossed, but since this lock is now always required, for example,
when NCSI is present, the PHY lock will always be taken.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:21 -05:00
Yaniv Rosner
0f6bb03dd0 bnx2x: Add support for BCM84834
Add support for the 10G-baseT PHY - BCM84834, which is the quad-port version of
the dual-port BCM84833.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:21 -05:00
Yaniv Rosner
5a1fbf4046 bnx2x: Fix SFP+ current leakage
Per measurements, the SFP+ suffered from small current leakage in two cases:
 - When no module was plugged and TX laser was disabled. The fix was to enable
   it, and when module is plugged in, check if it needs to be disabled.
 - When over-current event occurs due to invalid SFP+ module, the HW basically
   shuts down the current for this module, but the SW needs to complete this
   by issuing a power down via a GPIO.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:21 -05:00
Yaniv Rosner
55386fe883 bnx2x: Change MDIO clock settings
When drivers works on top of an old bootcode, it is theoretically subjected to
MDC/MDIO failures since the MDIO clock is set in the beginning of each sequence,
rather than per CL45 command. On rare cases an old bootcodes may change that in
the middle, so to address that, the MDIO clock is set for each CL45 access.
In addition, setting the MDIO clock is now done per EMAC base, and
not per port number, since a specific port can potentially use both EMACs for
different PHY accesses.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:21 -05:00
Yaniv Rosner
4e7b499788 bnx2x: Add support for 20G-KR2
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:20 -05:00
Yaniv Rosner
b884d95b82 bnx2x: Activate LFA
In case Link Flap Avoidance feature is supported by the MCP, bnx2x will enable
it, and will pass the appropriate parameter when load request is sent to
the MCP.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-28 10:59:20 -05:00
John W. Linville
79d38f7d6c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/iwlwifi/pcie/tx.c
2012-11-28 10:56:03 -05:00
Don Skidmore
14a8d4bb56 ixgbe: bump version number
Move the version string to better reflect the driver functionality with
that of the out of tree driver.  Also since we no longer need the MAJ,
MIN, BUILD defines remove them to clean up the code.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-28 04:53:36 -08:00
Greg Rose
9b735984fb ixgbe: Make the bridge mode setting sticky
The internal bridge mode setting needs to be sticky so that it can be
configured correctly after a device reset.  This change is required now
that the driver supports setting the bridge mode to VEB or VEPA.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Sibai Li <Sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-28 04:46:11 -08:00
Parikh, Neerav
2afaa00d2f ixgbe: Fix incorrect disabling of Tx hang check in case of PFC
The XOFF received statistic registers are per priority based and not per
traffic class. The ixgbe driver was incorrectly considering them to be for
each traffic class; and then disabling the "Tx hang" check for the queues
that belonged to the particular traffic class that had received PFC frames.

The above logic worked fine in scenario where the user priority and traffic
class number matched e.g. priority 0 is mapped to traffic class 0 and so on.
But, when multiple user priorities are mapped to a single traffic class or
when user priorities and traffic class numbers do not line up; the ixgbe
driver may disable the "Tx hang" check for queues belonging to a traffic
class that did not receive PFC frames and keep the "Tx hang" check enabled
for the queues that did receive the PFC frames.

This patch corrects the above in the code by considering the statistics
on a per priority basis; then getting the traffic class the user priority
belongs to and disabling the "Tx hang" check for queues that belong
to that traffic class.

Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-28 04:28:56 -08:00
Alexander Duyck
9de0c8ed78 ixgbe: Drop RLPML configuration from x540 RXDCTL register configuration
Since we are doing a page based receive there is no point in setting a maximum
packet length on the x540 RXDCTL register.  As such we can drop the code from
the driver entirely.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-28 04:21:18 -08:00
Matthew Vick
d48507fed9 igb: Use a 32-bit mask when calculating the flow control watermarks
For some devices, the result of the flow control high watermark gets
truncated when programming it into the registers because of the mask used.
Switch the mask to 32-bit to prevent this from happening.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-28 04:13:39 -08:00
Mitch A Williams
76f640f147 igbvf: update version number
Update version number.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-28 04:05:23 -08:00
Mitch A Williams
2c1a101965 igbvf: work around i350 erratum
On i350 VF devices, VLAN tags will be byte-swapped in the receive
descriptor only when received packets are looped back from other
VFs. Check for this condition and swab the tag if needed.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-11-28 03:57:23 -08:00
Linus Torvalds
e23739b4ad Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
 "For some media fixes:
   - dvb_usb_v2: some fixes at the core
   - Some fixes on some embedded drivers: soc_camera, adv7604, omap3isp,
     exynos/s5p
   - Several Exynos4/5 camera fixes
   - a fix at stv0900 driver
   - a few USB ID additions to detect more variants of rtl28xxu-based
     sticks"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (25 commits)
  [media] rtl28xxu: 0ccd:00d7 TerraTec Cinergy T Stick+
  [media] rtl28xxu: 1d19:1102 Dexatek DK mini DVB-T Dongle
  [media] mt9v022: fix the V4L2_CID_EXPOSURE control
  [media] mx2_camera: fix missing unlock on error in mx2_start_streaming()
  [media] media: omap1_camera: fix const cropping related warnings
  [media] media: mx1_camera: use the default .set_crop() implementation
  [media] media: mx2_camera: fix const cropping related warnings
  [media] media: mx3_camera: fix const cropping related warnings
  [media] media: pxa_camera: fix const cropping related warnings
  [media] media: sh_mobile_ceu_camera: fix const cropping related warnings
  [media] media: sh_vou: fix const cropping related warnings
  [media] adv7604: restart STDI once if format is not found
  [media] adv7604: use presets where possible
  [media] adv7604: Replace prim_mode by mode
  [media] adv7604: cleanup references
  [media] dvb_usb_v2: switch interruptible mutex to normal
  [media] dvb_usb_v2: fix pid_filter callback error logging
  [media] exynos-gsc: change driver compatible string
  [media] omap3isp: Fix warning caused by bad subdev events operations prototypes
  [media] omap3isp: video: Fix warning caused by bad vidioc_s_crop prototype
  ...
2012-11-27 12:27:37 -08:00
Marc Kleine-Budde
fc8f40b10e can: mpc5xxx_can: add MODULE_DEVICE_TABLE
This patch adds a MODULE_DEVICE_TABLE for the of bindings, so that the module
can be loaded automatically by udev.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:36 +01:00
Marc Kleine-Budde
69c0c5b15a can: c_can_platform: add MODULE_DEVICE_TABLE
This patch adds a MODULE_DEVICE_TABLE for the of and platform bindings, so that
the module can be loaded automatically by udev.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:34 +01:00
Marc Kleine-Budde
09ca71cae2 can: at91_can: add MODULE_DEVICE_TABLE
This patch adds a MODULE_DEVICE_TABLE for the platform bindings, so that the
module can be loaded automatically by udev.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:34 +01:00
Marc Kleine-Budde
4358a9dc94 can: flexcan: add MODULE_DEVICE_TABLE
This patch adds a MODULE_DEVICE_TABLE for the of and platform bindings, so that
the module can be loaded automatically by udev.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:33 +01:00
Marc Kleine-Budde
f190a50c49 can: cc770_platform: add MODULE_ALIAS and MODULE_DEVICE_TABLE
This patch adds a MODULE_ALIAS for the platform bindings and a
MODULE_DEVICE_TABLE for of bindings, so that the module can be loaded
automatically by udev.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:33 +01:00
Marc Kleine-Budde
d8c4386d16 can: sja1000_platform: add MODULE_ALIAS
This patch adds a MODULE_ALIAS for the platform bindings, so that the module
can be loaded automatically by udev.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:33 +01:00
Marc Kleine-Budde
64116c148c can: ti_hecc: add MODULE_ALIAS
This patch adds a MODULE_ALIAS for the platform bindings, so that
the module can be loaded automatically udev.

Tested-by: Jan Lübbe <jlu@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:32 +01:00
Marc Kleine-Budde
73ae9499db can: bfin_can: add MODULE_ALIAS
This patch adds a MODULE_ALIAS for the platform bindings, so that the module
can be loaded automatically by udev.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:32 +01:00
Andreas Larsson
04df251073 can: sja1000: Make sja1000_of_platform selectable and compilable on SPARC
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:32 +01:00
Olivier Sobrie
080f40a6fa can: kvaser_usb: Add support for Kvaser CAN/USB devices
This driver provides support for several Kvaser CAN/USB devices.
Such kind of devices supports up to three CAN network interfaces.

It has been tested with a Kvaser USB Leaf Light (one network interface)
connected to a pch_can interface.
The firmware version of the Kvaser device was 2.5.205.

List of Kvaser devices supported by the driver:
  - Kvaser Leaf Light
  - Kvaser Leaf Professional HS
  - Kvaser Leaf SemiPro HS
  - Kvaser Leaf Professional LS
  - Kvaser Leaf Professional SWC
  - Kvaser Leaf Professional LIN
  - Kvaser Leaf SemiPro LS
  - Kvaser Leaf SemiPro SWC
  - Kvaser Memorator II HS/HS
  - Kvaser USBcan Professional HS/HS
  - Kvaser Leaf Light GI
  - Kvaser Leaf Professional HS (OBD-II connector)
  - Kvaser Memorator Professional HS/LS
  - Kvaser Leaf Light "China"
  - Kvaser BlackBird SemiPro
  - Kvaser USBcan R

Signed-off-by: Daniel Berglund <db@kvaser.com>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:31 +01:00
AnilKumar Ch
52cde85acc can: c_can: Add d_can raminit support
Add D_CAN raminit support to C_CAN driver to enable D_CAN RAM,
which holds all the message objects during transmission or
receiving of data. This initialization/de-initialization should
be done in synchronous with D_CAN clock.

In case of AM335X-EVM (current user of D_CAN driver) message RAM is
controlled through control module register for both instances. So
control module register details is required to initialization or
de-initialization of message RAM according to instance number.

Control module memory resource is obtained from D_CAN dt node and
instance number obtained from device tree aliases node.

This patch was tested on AM335x-EVM along with pinctrl data addition
patch, d_can dt aliases addition and control module data addition.
pinctrl data addition is not added to am335x-evm.dts (only supports
CPLD profile#0) because d_can1 is supported under CPLD profile#1.

Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
[mkl: fix instance for non DT in probe, cleaned up raminit]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-27 09:49:31 +01:00
Linus Torvalds
2844a48706 Merge branch 'akpm' (Fixes from Andrew)
Merge misc fixes from Andrew Morton:
 "8 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (8 patches)
  futex: avoid wake_futex() for a PI futex_q
  watchdog: using u64 in get_sample_period()
  writeback: put unused inodes to LRU after writeback completion
  mm: vmscan: check for fatal signals iff the process was throttled
  Revert "mm: remove __GFP_NO_KSWAPD"
  proc: check vma->vm_file before dereferencing
  UAPI: strip the _UAPI prefix from header guards during header installation
  include/linux/bug.h: fix sparse warning related to BUILD_BUG_ON_INVALID
2012-11-26 18:33:33 -08:00
Linus Torvalds
5687100aad TTY fix for 3.7-rc7
Here is a single fix for a reported regression in 3.7-rc5 for the tty
 layer.  This fix has been in the linux-next tree and solves the reported
 problem.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY fix from Greg Kroah-Hartman:
 "Here is a single fix for a reported regression in 3.7-rc5 for the tty
  layer.  This fix has been in the linux-next tree and solves the
  reported problem.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'tty-3.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty vt: Fix a regression in command line edition
2012-11-26 17:46:36 -08:00
Linus Torvalds
c854539d71 This is the MFD pull request for 3.7 fixes.
We have:
 
 - A twl fix preventing a buffer overflow.
 - A wm5102 register patch fix.
 - A wm5110 error misreport fix.
 - Arizona fixes: Use the right array size when adding subdevices, correctly
   report underclocked events, synchronize register cache after reset.
 - A twl4030 fix for preventing the system to hang from an interrupt flood.
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Merge tag 'mfd-for-linus-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

Pull MFD fixes from Samuel Ortiz:

 - A twl fix preventing a buffer overflow.

 - A wm5102 register patch fix.

 - A wm5110 error misreport fix.

 - Arizona fixes: Use the right array size when adding subdevices,
   correctly report underclocked events, synchronize register cache
   after reset.

 - A twl4030 fix for preventing the system to hang from an interrupt
   flood.

* tag 'mfd-for-linus-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6:
  mfd: twl4030: Fix chained irq handling on resume from suspend
  mfd: arizona: Sync regcache after reset
  mfd: arizona: Correctly report when AIF2/AIF1 is underclocked
  mfd: arizona: Use correct array for ARRAY_SIZE in mfd_add_devices call
  mfd: wm5110: Disable control interface error report for WM5110 rev B
  mfd: wm5102: Update register patch for latest evaluation
  mfd: twl-core: Fix chip ID for the twl6030-pwm module
2012-11-26 17:45:16 -08:00
Mel Gorman
82b212f400 Revert "mm: remove __GFP_NO_KSWAPD"
With "mm: vmscan: scale number of pages reclaimed by reclaim/compaction
based on failures" reverted, Zdenek Kabelac reported the following

  Hmm,  so it's just took longer to hit the problem and observe
  kswapd0 spinning on my CPU again - it's not as endless like before -
  but still it easily eats minutes - it helps to	turn off  Firefox
  or TB  (memory hungry apps) so kswapd0 stops soon - and restart
  those apps again.  (And I still have like >1GB of cached memory)

  kswapd0         R  running task        0    30      2 0x00000000
  Call Trace:
    preempt_schedule+0x42/0x60
    _raw_spin_unlock+0x55/0x60
    put_super+0x31/0x40
    drop_super+0x22/0x30
    prune_super+0x149/0x1b0
    shrink_slab+0xba/0x510

The sysrq+m indicates the system has no swap so it'll never reclaim
anonymous pages as part of reclaim/compaction.  That is one part of the
problem but not the root cause as file-backed pages could also be
reclaimed.

The likely underlying problem is that kswapd is woken up or kept awake
for each THP allocation request in the page allocator slow path.

If compaction fails for the requesting process then compaction will be
deferred for a time and direct reclaim is avoided.  However, if there
are a storm of THP requests that are simply rejected, it will still be
the the case that kswapd is awake for a prolonged period of time as
pgdat->kswapd_max_order is updated each time.  This is noticed by the
main kswapd() loop and it will not call kswapd_try_to_sleep().  Instead
it will loopp, shrinking a small number of pages and calling
shrink_slab() on each iteration.

The temptation is to supply a patch that checks if kswapd was woken for
THP and if so ignore pgdat->kswapd_max_order but it'll be a hack and not
backed up by proper testing.  As 3.7 is very close to release and this
is not a bug we should release with, a safer path is to revert "mm:
remove __GFP_NO_KSWAPD" for now and revisit it with the view to ironing
out the balance_pgdat() logic in general.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-11-26 17:41:24 -08:00
Richard Cochran
513777b243 cpts: add missing kconfig dependency
The Common Platform Time Sync function of the CPSW does not depend the
CPSW configuration option as it should. This patch fixes the issue by
adding the dependency.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:14 -05:00
Richard Cochran
c3484c275d ptp: reduce stack usage when measuring the system time offset
This patch removes the large buffer from the stack of the system
offset ioctl and replaces it with a kmalloced buffer.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:14 -05:00
Richard Cochran
c7ec0badcc ptp: reduce stack usage when reading external time stamps
This patch removes the large buffer from the stack of the read file
operation and replaces it with a kmalloced buffer.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:14 -05:00
Giuseppe CAVALLARO
cfd1979e81 stmmac: update the driver version to Nov_2012
Many new feauture have been introduced in the driver:
ethtool coalesce options, Rx HW watchdog... so this patch updates the
driver's version.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:13 -05:00
Giuseppe CAVALLARO
48f44da454 stmmac: get/set coalesce parameters via ethtool
This patch is to get/set the tx/rx coalesce parameters
via ethtool interface.

Tests have been done on several platform with different GMAC chips w/o and w/
RX watchdog feature.

V2: reject coalesce settings that are not supported.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:12 -05:00
Giuseppe CAVALLARO
62a2ab935c stmmac: add Rx watchdog support to mitigate the DMA irqs
GMAC devices newer than databook 3.40 has an embedded timer
that can be used for mitigating the number of interrupts.
So this patch adds this optimizations.

At any rate, the Rx watchdog can be disable (on bugged HW) by
passing from the platform the riwt_off field.

In this implementation the rx timer stored in the Reg9 is fixed
to the max value. This will be tuned by using ethtool.

V2: added a platform parameter to force to disable the rx-watchdog
for example on new core where it is bugged.

V3: do not disable NAPI when Rx watchdog is used.

V4: a new extra statistic field has been added to show the early
receive status in the interrupt handler.
This patch also adds an extra check to avoid to call
napi_schedule when the DMA_INTR_ENA_RIE bit is disabled in the
Interrupt Mask register.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:12 -05:00
Giuseppe CAVALLARO
9125cdd1be stmmac: add the initial tx coalesce schema
This patch adds a new schema used for mitigating the
number of transmit interrupts.
It is based on a SW timer and a threshold value.
The timer is used to periodically call the stmmac_tx_clean
function; the threshold is used for setting the IC (Interrupt
on Completion bit). The ISR will then invoke the poll method.
Also the patch improves some ethtool stat fields.

V2: review the logic to manage the IC bit in the TDESC
that was bugged because it didn't take care about the
fragments. Also fix the tx_count_frames that has not to be
limited to TX DMA ring. Thanks to Ben Hutchings.

V3: removed the spin_lock irqsave/restore as D. Miller suggested.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:10 -05:00
Giuseppe CAVALLARO
7284a3f1ad stmmac: remove dead code for STMMAC_TIMER support
The TIMER option is not longer supported and this
code can be considered dead for this driver in
the new kernel series.
In fact, It was not updated at all and never used.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:10 -05:00
Rami Rosen
3872baf618 tun: put correct method name in a debug message.
This patch puts the correct method name, tun_do_read, in a debug message.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:10 -05:00
Rami Rosen
36fe8c0973 vtun: fix typos.
This patch fixes four typos in drivers/net/vtun.c.

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:22:09 -05:00
Ben Hutchings
b3422a314c dsa: Hide core config options; make drivers select what they need
Commit 82167cb8c6b2f8166d5c7532e5ef4b5e0cc46a72 ('net: dsa/slave: Fix
compilation warnings') fixed one possible invalid configuration
(NET_DSA enabled with no trailer formats) but added others: drivers
can select NET_DSA without its dependencies being met.

It's not very useful to make either the DSA core or the tagging
formats manually selectable without a driver to use them, so:

1. Define a hidden HAVE_NET_DSA option and move the dependencies of
   NET_DSA to that.  While we're at it, drop the deprecated
   EXPERIMENTAL dependency.
2. Make NET_DSA and the drivers dependent on HAVE_NET_DSA.
3. Hide the tagging format options again.
4. Make drivers select both NET_DSA and the appropriate tagging format
   option.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:10:44 -05:00
Oliver Hartkopp
c9faaa09e2 can: peak_usb: fix hwtstamp assignment
The skb->tstamp is set to the hardware timestamp when available in the USB
urb message. This leads to user visible timestamps which contain the 'uptime'
of the USB adapter - and not the usual system generated timestamp.

Fix this wrong assignment by applying the available hardware timestamp to the
skb_shared_hwtstamps data structure - which is intended for this purpose.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-11-26 22:33:06 +01:00
Christian Lamparter
725d255e70 p54: improve TSF timestamp precision
The LMAC API states that the TSF clock value of
every rx'ed frame is a "usec accurate timestamp
of the hardware clock at the end of frame
(before OFDM SIFS EOF padding)".

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-26 14:54:21 -05:00
Johannes Berg
1d815ef4b8 iwlwifi: initialize rx_status
The vendor radiotap patch added a few fields to
struct ieee80211_rx_status that need to be zero,
initialize the struct instead of using whatever
was left on the stack.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Tested-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-26 14:54:21 -05:00
Johannes Berg
d369167f0a iwlegacy: initialize rx_status
The vendor radiotap patch added a few fields to
struct ieee80211_rx_status that need to be zero,
initialize the struct instead of using whatever
was left on the stack.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-26 14:54:20 -05:00
Joe Perches
fbbdcc0213 brcmsmac: Add __printf verification to logging prototypes
Adding __printf helps spot format and argument mismatches.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-11-26 14:54:20 -05:00
John W. Linville
62c8003ecb Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2012-11-26 14:46:41 -05:00