This patch introduces the first stage of RAID5 support
mainly the skip-over-raid-units when reading. For
writes it inserts BLANK units, into where XOR blocks
should be calculated and written to.
It introduces the new "general raid maths", and the main
additional parameters and components needed for raid5.
Since at this stage it could corrupt future version that
actually do support raid5. The enablement of raid5
mounting and setting of parity-count > 0 is disabled. So
the raid5 code will never be used. Mounting of raid5 is
only enabled later once the basic XOR write is also in.
But if the patch "enable RAID5" is applied this code has
been tested to be able to properly read raid5 volumes
and is according to standard.
Also it has been tested that the new maths still properly
supports RAID0 and grouping code just as before.
(BTW: I have found more bugs in the pnfs-obj RAID math
fixed here)
The ore.c file is getting too big, so new ore_raid.[hc]
files are added that will include the special raid stuff
that are not used in striping and mirrors. In future write
support these will get bigger.
When adding the ore_raid.c to Kbuild file I was forced to
rename ore.ko to libore.ko. Is it possible to keep source
file, say ore.c and module file ore.ko the same even if there
are multiple files inside ore.ko?
Signed-off-by: Boaz Harrosh <[email protected]>
fs/exofs directory has multiple targets now, of which the
ore.ko will be needed by the pnfs-objects-layout-driver
(fs/nfs/objlayout).
As suggested by: Michal Marek <[email protected]> convert
inclusion of exofs/ from obj-$(CONFIG_EXOFS_FS) => obj-$(y).
So ORE can be selected also from fs/nfs/Kconfig
CC: Michal Marek <[email protected]>
CC: Al Viro <[email protected]>
Signed-off-by: Boaz Harrosh <[email protected]>
If the PHY should disappear (for example, on an USB Ethernet MAC), then
the driver would leak any undelivered time stamp packets. This commit
fixes the issue by calling the appropriate functions to free any packets
left in the transmit and receive queues.
The driver first appeared in v3.0.
Signed-off-by: Richard Cochran <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Cc: <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
The previous commit enforces a new rule for handling the cloned packets
for transmit time stamping. These packets must not be freed using any other
function than skb_complete_tx_timestamp. This commit fixes the one and only
driver using this API.
The driver first appeared in v3.0.
Signed-off-by: Richard Cochran <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Cc: <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
When hybrid mode is enabled (accept_ra == 2), the kernel also sees RAs
generated locally. This is useful since it allows the kernel to auto-configure
its own interface addresses.
However, if 'accept_ra_defrtr' and/or 'accept_ra_rtr_pref' are set and the
locally generated RAs announce the default route and/or other route information,
the kernel happily inserts bogus routes with its own address as gateway.
With this patch, adding routes from an RA will be skiped when the RAs source
address matches any local address, just as if 'accept_ra_defrtr' and
'accept_ra_rtr_pref' were set to 0.
Signed-off-by: Andreas Hofmeister <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
If a frame cant be transmitted, it is silently discarded.
Add a counter to report these errors to user.
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
When the HW is in multi-channel mode based on the skew/IPL, there are
4 functions per port and so not enough resources to create multiple
RX/TX rings for each function.
Signed-off-by: Suresh Reddy <[email protected]>
Signed-off-by: Sathya Perla <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Multiple TXQ support is partially broken in BE2. It is fully
supported BE3 onwards and in Lancer.
Signed-off-by: Vasundhara Volam <[email protected]>
Signed-off-by: Sathya Perla <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Currently the code for VF setup/teardown done by a PF (if_create,
mac_add_config, link_status_query etc) is scattered; this patch
refactors this code into be_vf_setup() and be_vf_clear(). The
if_create/if_destroy/mac_addr_query cmds are now called after the MCCQ
is created; so these cmds are now modified to use the MCCQ instead of
MBOX.
Signed-off-by: Sathya Perla <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
When a card is reset due to EEH error recovery or due to a suspend,
rx-mode config (promisc/mc) is not being sent to the FW. be_setup() is
called in these flows and is the best place for such config/re-config
cmds. Hence include rx-mode, vlan and flow-control config in
be_setup().
Signed-off-by: Sathya Perla <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Dan Siemon would like to add tunnelling support to cls_flow
This preliminary patch introduces use of skb_header_pointer() to help
this task, while avoiding skb head reallocation because of deep packet
inspection.
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
In func ipv4_dst_check,check_peer_pmtu should be called only when peer is updated.
So,if the peer is not updated in ip_rt_frag_needed,we can not inc __rt_peer_genid.
Signed-off-by: Gao feng <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
It was enabled by default and the messages guarded
by the define are useful.
Signed-off-by: Flavio Leitner <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Since commit
"7488876... dt/net: Eliminate users of of_platform_{,un}register_driver"
there are two platform drivers named "mdio-gpio" registered.
I renamed the of variant to "mdio-ofgpio".
Signed-off-by: Dirk Eibach <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Add missing return statement. The docs say that the level 4 PSC IRQs
relate to MACE DMA and SCC. Since those drivers don't call
mac_irq_pending() this patch has no affect. But it should be fixed all the
same, since it can be useful for MACE debugging.
Signed-off-by: Finn Thain <[email protected]>
Signed-off-by: Geert Uytterhoeven <[email protected]>
The algorithm described in the comment compares two reads from the RTC but
the code actually reads once and compares the result to an uninitialized
value. This causes the compiler to warn, "last_result maybe used
uninitialized". Make the code match the comment, fix the warning and
perhaps improve reliability. Tested on a Quadra 700.
Signed-off-by: Finn Thain <[email protected]>
Signed-off-by: Geert Uytterhoeven <[email protected]>
zorro-driver.c: fix four checkpatch warnings of:
WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
I had a cat. The cat was mine.
His name was Zorro. Amiga is fine.
Signed-off-by: Jim Rotmalm <[email protected]>
Signed-off-by: Geert Uytterhoeven <[email protected]>
It is more efficient to left-align 8-bit temperature values, so that
8-bit and 9-bit temperature values can be handled exactly the same way
in the rest of the code.
Signed-off-by: Jean Delvare <[email protected]>
Cc: Guenter Roeck <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Helper function is_word_sized has grown too much to be kept inline. It
was OK when there were only 6 word-sized registers but support for new
devices have made the list much longer. The function is also called
from more places than before.
Signed-off-by: Jean Delvare <[email protected]>
Cc: Guenter Roeck <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Explain why clones of the LM75 are generally not detected by the
driver, and why this isn't going to change. Also update the
documentation to reflect the list of chip names currently supported by
the driver.
Signed-off-by: Jean Delvare <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Move the check of fan pin usage to a separate function. This improves
readability, and will make it easier to integrate chip-specific
conditions.
Signed-off-by: Jean Delvare <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
When in6 is missing, don't read the corresponding registers, it's a
waste of time. The logic is similar to what we do for fans and
temperatures.
Signed-off-by: Jean Delvare <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Add datasheet reference and device ID for ADT75.
The ADT75, like some other LM75 derivatives, needs to be instantiated
using methods 1, 2, or 4.
For more information see Documentation/i2c/instantiating-devices.
Signed-off-by: Michael Hennerich <[email protected]>
Acked-by: Jonathan Cameron <[email protected]>
Acked-by: Jean Delvare <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Shift operations can be used for sign extensions. Use it.
Signed-off-by: Guenter Roeck <[email protected]>
Reviewed-by: Robert Coulson <[email protected]>
Add device IDs and reference to datasheets for Lineage Power DC-DC converters.
Signed-off-by: Guenter Roeck <[email protected]>
Reviewed-by: Robert Coulson <[email protected]>
The LTC3880 PMBus command set is comparable to LTC2978. Add support for it
to the LTC2978 driver.
Signed-off-by: Guenter Roeck <[email protected]>
Reviewed-by: Robert Coulson <[email protected]>
Provide explicit driver for LTC2978 to enable support for minimum and peak
attributes. Remove ltc2978 chip id from generic pmbus driver.
Signed-off-by: Guenter Roeck <[email protected]>
Reviewed-by: Robert Coulson <[email protected]>
At least one PMBus chip supports peak attributes for READ_TEMPERATURE2.
Add virtual registers to be able to report it to the user.
Signed-off-by: Guenter Roeck <[email protected]>
Reviewed-by: Robert Coulson <[email protected]>
Driver for AD7314, ADT7301, and ADT7302, ported from IIO.
Currently dropped power down mode support.
Signed-off-by: Jonathan Cameron <[email protected]>
[[email protected]: Added MODULE_DEVICE_TABLE]
Signed-off-by: Guenter Roeck <[email protected]>
Always call _pmbus_read_byte() instead of pmbus_read_byte() in PMBus core
driver. With this change, device specific read functions can be implemented for
all registers.
Since the device specific read_byte function is now always called, we need to be
more careful with page validations. Only fail if the passed page number is larger
than 0, since -1 means "current page".
Signed-off-by: Guenter Roeck <[email protected]>
Reviewed-by: Robert Coulson <[email protected]>
EINVAL was over-used in the code. Replace it with more appropriate errors.
Signed-off-by: Guenter Roeck <[email protected]>
Reviewed-by: Robert Coulson <[email protected]>
Provide more documentation describing PMBus driver functionality and the API
between the PMBus core driver and PMBus chip drivers.
Signed-off-by: Guenter Roeck <[email protected]>
Reviewed-by: Robert Coulson <[email protected]>
Before this patch the f71882fg driver completely fails to initialize
on systems which have reserved settings in the pwm enable register, and
it disables all auto pwm sysfs attributes if any fan is controlled by
a digital sensor reading.
This patch changes the fail to initialize into don't register any attributes
for the fan for which there are reserved settings in the pwm enable register
and also makes the not registering of auto pwm sysfs attributes a per fan
thing.
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
This is a preparation patch for not registering fan/pwm attributes for
some fans (rather then register them for all or for none).
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
This is a preparation patch for not registering fan/pwm attributes for
some fans (rather then register them for all or for none).
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Since commit [c58543c8: genirq: Run irq handlers with interrupts disabled],
we run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).
So now this flag is a NOOP and can be removed.
Signed-off-by: Yong Zhang <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
This patch allows to read temperature
from TMU(Thermal Management Unit) of SAMSUNG EXYNOS4 series of SoC.
Signed-off-by: Donggeun Kim <[email protected]>
Signed-off-by: MyungJoo Ham <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
ADM1276 is mostly compatible to ADM1275, with added support for input power
measurement. Add support for it to the ADM1275 driver.
Signed-off-by: Guenter Roeck <[email protected]>
Acked-by: Jean Delvare <[email protected]>
ADM1275 supports a second current limit, which can be configured as either lower
or upper limit. Add support for it and report it as either lower or upper
critical current limit.
Also replace error return code EINVAL for unsupported pages with ENXIO as this
is more appropriate for the observed condition.
Signed-off-by: Guenter Roeck <[email protected]>
Acked-by: Jean Delvare <[email protected]>
Driver remove functions have an error return value, but rarely return an error
in practice. If a driver does return an error from its remove function, the
driver won't be unloaded and is expected to stay alive.
pmbus_do_remove() is defined as returning an int, but always returns 0 (no
error). Calling code passes that return value on to high level driver
remove functions, but does not evaluate it and removes driver data even if
pmbus_do_remove() returned an error (which it in practice never does). Even if
this code could never cause a real problem, it is nevertheless conceptually
wrong.
To reduce confusion and simplify the code, change pmbus_do_remove() to be a void
function, and have PMBus client drivers always return zero in their driver
remove functions.
Reported-by: Jean Delvare <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Acked-by: Jean Delvare <[email protected]>
Export caseopen alarm status into userspace for Winbond W83627*
and Nuvoton NCT677[56] chips and implement alarm clear attribute.
Second caseopen alarm on NCT6776 is also supported.
Signed-off-by: Dmitry Artamonow <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
9p.txt advertises that maxdata mount option should be used to specify
msize, in the code though we use msize option and completely ignore
maxdata if passed
Signed-off-by: Nicolae Mogoreanu <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
Without this msize=4294967295 will result in a crash
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Aneesh Kumar K.V <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
Instead of saying all integer argument option should be listed in the beginning
move integer parsing to each option type.
Signed-off-by: Aneesh Kumar K.V <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
