preparing to a big refactor on musb code. We need
to be able to compile in all glue layers (or at
least all ARM-based ones) together and have a
working binary.
While preparing for that, we move every glue
layer to export only one symbol, which is
a struct musb_platform_ops, and make all
other functions static.
Later patches will come to allow for compiling
all glue layers together and have a working
binary.
Signed-off-by: Felipe Balbi <balbi@ti.com>
This will be passed to musb_core by platform glue
layer in order to make it easier to compile support
for several HW glue layers.
Later patches will come using this structure and
also moving HW glue layers to its own platform
driver; the idea is to be able to handle platform
peculiarities in a manner which doesn't affect one
another.
Signed-off-by: Felipe Balbi <balbi@ti.com>
The existing gpio-keys driver can be usable only for GPIO lines with
interrupt support. Several devices have buttons connected to a GPIO
line which is not capable to generate interrupts. This patch adds a
new input driver using the generic GPIO layer and the input-polldev
to support such buttons.
[Ben Gardiner <bengardiner@nanometrics.ca: fold code to use more
of the original gpio_keys infrastructure; cleanups and other
improvements.]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Tested-by: Ben Gardiner <bengardiner@nanometrics.ca>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Commit 2c01946c6b (omap3 nand: cleanup
virtual address usages) wrongly enabled CONFIG_MTD_NAND_OMAP_HWECC
which breaks boards like beagle and pandora that use software ECC
for write.
Boards like beagle and pandora uses sw ecc for write (e.g. binary flushed
from u-boot) and read from kernel.
Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Whenever we add DMA descriptors to a TX ring and update the ring
pointer, the TX DMA engine must first read the new DMA descriptors and
then start reading packet data. However, all released Solarflare 10G
controllers have a 'TX push' feature that allows us to reduce latency
by writing the first new DMA descriptor along with the pointer update.
This is only useful when the queue is empty. The hardware should
ignore the pushed descriptor if the queue is not empty, but this check
is buggy, so we must do it in software.
In order to tell whether a TX queue is empty, we need to compare the
previous transmission count (write_count) and completion count
(read_count). However, if we do that every time we update the ring
pointer then read_count may ping-pong between the caches of two CPUs
running the transmission and completion paths for the queue.
Therefore, we split the check for an empty queue between the
completion path and the transmission path:
- Add an empty_read_count field representing a point at which the
completion path saw the TX queue as empty.
- Add an old_write_count field for use on the completion path.
- On the completion path, whenever read_count reaches or passes
old_write_count the TX queue may be empty. We then read
write_count, set empty_read_count if read_count == write_count,
and update old_write_count.
- On the transmission path, we read empty_read_count. If it's set, we
compare it with the value of write_count before the current set of
descriptors was added. If they match, the queue really is empty and
we can use TX push.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
It is not necessary to serialise writes to the paged 128-bit
registers. However, if we don't then we must always write the last
dword separately, not as part of a qword write.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Document exactly which registers and functions have special behaviour,
and why races on writes to descriptor pointers are safe.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Place the regularly updated fields (locks, MAC stats, etc.) on a
separate cache-line from fields which are mostly constant. This
should reduce cache misses for access to the latter on the data path.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: 6524/1: GIC irq desciptor bug fix
ARM: 6523/1: iop: ensure sched_clock() is notrace
ARM: 6456/1: Fix for building DEBUG with sa11xx_base.c as a module.
ARM: 6519/1: kuser: Fix incorrect cmpxchg syscall in kuser helpers
ARM: 6505/1: kprobes: Don't HAVE_KPROBES when CONFIG_THUMB2_KERNEL is selected
ARM: 6508/1: vexpress: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL
ARM: 6507/1: RealView: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL
ARM: 6504/1: Thumb-2: Fix long-distance conditional branches in head.S for Thumb-2.
ARM: 6503/1: Thumb-2: Restore sensible zImage header layout for CONFIG_THUMB2_KERNEL
ARM: 6502/1: Thumb-2: Fix CONFIG_THUMB2_KERNEL breakage in compressed/head.S
ARM: 6501/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in mm/proc-v7.S
ARM: 6500/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in kernel/head.S
ARM: 6499/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in bootp/init.S
ARM: 6498/1: vfp: Correct data alignment for CONFIG_THUMB2_KERNEL
ARM: 6497/1: kexec: Correct data alignment for CONFIG_THUMB2_KERNEL
ARM: 6496/1: GIC: Do not try to register more then NR_IRQS interrupts
ARM: cns3xxx: Fix build with CONFIG_PCI=y
While looking for the duplicates in /sys/class/wmi/, I couldn't find
them. The code that looks for duplicates uses strncmp in a binary GUID,
which may contain zero bytes. The right function is memcmp, which is
also used in another section of wmi code.
It was finding 49142400-C6A3-40FA-BADB-8A2652834100 as a duplicate of
39142400-C6A3-40FA-BADB-8A2652834100. Since the first byte is the fourth
printed, they were found as equal by strncmp.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: stable@kernel.org
struct net_device has its own struct net_device_stats member, so use
this one instead of a private copy in struct net_local.
Note: This patch was not even compile tested.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
xemaclite_get_stats() just returns dev->stats so we can leave it out
alltogether and let dev_get_stats() do the job.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
am79c961_getstats() just returns dev->stats so we can leave it out
alltogether and let dev_get_stats() do the job.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes a recent bug on the patch (c6ecf39a10)
that disabled the laser on ifconfig down. Compilers were seeing a enum
mismatch.
Signed-off-by Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch helps prevent FW/SW semaphore collision from leading
to link establishment failure. The collision might mess up the
PHY registers so we reset the PHY. However there are SFI/KR areas
in the PHY that are not reset with a Reset_AN so we need to change
LMS to reset it. Also wait until AN state machine is AN_GOOD
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After freeing the rings we were not zeroing out the ring count values.
This patch now clears these counts correctly.
Reported-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch replace monitor/recover timer by watchdog based on time
stamp. New code allow to discover hangs more precisely.
Timeout values are currently doubled monitoring period values of
previous timer. This have to be tuned based of firmware timing
capabilities.
Tested on 3945, 4965, 5300, 6300.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Similarly like on iwlagn, initialize reset duration on iwl3945 to prevent
too frequent firmware resets.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Since we report tx acks to the protocol stack, add the needed
flag to hw_flags. This way we'll also use the new AP probing mechanism.
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Stop ANI durring reset to prevent false PHY error reports
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* Always free tx buffers before reset, since we also empty hw queues.
If we don't and a queue gets stuck, we'll never decrease txq_len and sw
will keep thinking the queue is still stuck even after reset.
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
If Lancer chip does not have posted RX buffers, it posts an RX completion entry
with the same frag_index as the last valid completion. The Error bit is also
set. In BE, a flush completion is indicated with a zero value for num_rcvd in
the completion.
Such completions don't carry any data and are not processed.
This patch refactors code to handle both cases with the same code.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lancer can use the same pattern as BE to indicate a driver load
to the FW.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove ehea_error, ehea_info and ehea_debug macros.
Use pr_fmt, pr_<level>, netdev_<level> and netif_<level> as appropriate.
Fix messages to use trailing "\n", some messages had an extra one
as the old ehea_<level> macros added a trailing "\n".
Coalesced long format strings.
Uncompiled/untested.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Breno Leitao<leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NETIF_F_HW_CSUM is a superset of NETIF_F_IP_CSUM+NETIF_F_IPV6_CSUM, but
some drivers miss the difference. Fix this and also fix UFO dependency
on checksumming offload as it makes the same mistake in assumptions.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Acked-by: Jon Mason <jon.mason@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The patch provides USB CDC NCM host driver support in the Linux Kernel.
Changes:
drivers/net/usb/cdc_ncm.c:
- initial submission of the CDC NCM host driver;
- verified on Intel 32/64 bit, Intel Atom, ST-Ericsson U8500 (ARM)
- throughput measured over 100 Mbits duplex;
- driver supports 16-bit NTB format only, but it is more than enough for
transfers up to 64K;
- driver can handle up to 32 datagrams in received NTB;
- timer is used to collect several packets in Tx direction
drivers/net/usb/Kconfig:
- a new entry to compile CDC NCM host driver
drivers/net/usb/Makefile:
- a new entry to compile CDC NCM host driver
Signed-off-by: Alexey Orishko <alexey.orishko@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Changes:
include/linux/usb/usbnet.h:
- a new flag to indicate driver's capability to accumulate IP packets in Tx
direction and extract several packets from single skb in Rx direction.
drivers/net/usb/usbnet.c:
- the procedure of counting packets in usbnet was updated due to the
accumulating of IP packets in the driver
- no short packets are sent if indicated by the flag in driver_info
structure
Signed-off-by: Alexey Orishko <alexey.orishko@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* By skipping tx power table calibration we also skip setting
tx power table on hw. Make sure we always write tx power table
on hw since it gets cleared on reset.
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This prepares the only place which uses the EWMA library so far for the
performance improved implementation coming up, which requires factor and
weight to be a power of two.
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch updates the tg3 version to 3.116.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The hardware defaults to fairly aggressive EEE thresholds. While there
appear to be no ill effects, this patch relaxes them, just as a
precaution.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The first hunk of this patch makes sure that the driver checks for the
appropriate preconditions before checking if EEE negotiation succeeded.
More specifically the link needs to be full duplex for EEE to be
enabled.
The second and third hunks of this patch fix a bug where the eee
advertisement register would be programmed with extra bits set.
The fourth hunk of this patch makes sure the EEE capability flag is not
set for 5718 A0 devices and that the device is not a serdes device.
None of these modifications are strictly necessary. The driver /
hardware still does the right thing. They are submitted primarily for
correctness.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
EEE support in the 57765 internal phy will not enable after a phy reset
unless it sees that EEE is supported in the MAC. This patch moves the
code that programs the CPMU EEE registers to a place before the phy
reset.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit 52b02d04c8 entitled "tg3: Add
EEE support", Ben Hutchings had commented that the EEE advertisement
register will be in a standard location. This patch moves that
definition into mdio.h and changes the code to use it.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current transmit routines set the jumbo frame BD flag too
aggressively. This can reduce performance for common cases. This patch
raises the jumbo flag threshold to 1518, up from 1500.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
initramfs: Really fix build break on symbol-prefixed archs
[media] Fix Kconfig errors due to two visible menus
i2c/algos: convert Kconfig to use the menu's `visible' keyword
media/video: convert Kconfig to use the menu's `visible' keyword
Revert "i2c: Fix Kconfig dependencies"
kconfig: regen parser
kconfig: add an option to determine a menu's visibility
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
parisc: Fix GSC PS/2 driver name for keyboard and mouse
parisc: KittyHawk LCD fix
parisc: convert the rest of the irq handlers to simple/percpu
parisc: fix dino/gsc interrupts
parisc: remove redundant initialization in sigsegv path of sys_rt_sigreturn
Linus Torvalds pointed out that our code was unbalanced when powering on
the panel with respect to the power off sequence in that we were failing
to restore the panel-fitter. The consequence of this would be that
across a simple DPMS off/on for a non-native mode, without an intervening
modeset, the panel fitter would remain disabled and the output would shift
on the panel.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
There's not much we can do here but hope for the best. However the first
failure happens quite frequently and if often remedied by the second
attempt to reset HEAD. So only print the error if that attempt also
fails.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=19802
Reported-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Otherwise we can't really fix the abi-braindeadness of forcing
libva to manually wait for rendering when switching rings. Which
in turn makes implementing hw semaphores a pointless exercise
(at least for ironlake).
[Also added the relaxed fencing param to explain the jump in
numbering - relaxed fencing is in -next.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
