I honestly have no idea where I got 129 from, but it's a much bigger
value than the actual buffer size (INET6_ADDRSTRLEN).
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Since the aemif driver conversion to DT along with
its movement to drivers/ folder is not yet done,
fix NAND binding documentation to have NAND specific
DT details only.
Signed-off-by: Kumar, Anil <anilkumar.v@ti.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Alex writes:
"adds support for the
asynchronous DMA engines on r6xx-SI. These engines are used
for ttm bo moves and VM page table updates currently. They
could also be exposed via the CS ioctl for userspace use,
but I haven't had a chance to add proper CS checker patches
for them yet. These patches have been tested extensively
internally for months, so they should be pretty solid."
* 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: use DMA engine for VM page table updates on SI
drm/radeon: add dma engine support for vm pt updates on si (v2)
drm/radeon: use DMA engine for VM page table updates on cayman/TN
drm/radeon: add dma engine support for vm pt updates on ni (v5)
drm/radeon: use async dma for ttm buffer moves on 6xx-SI
drm/radeon/kms: add support for dma rings to radeon_test_moves()
drm/radeon/kms: Add initial support for async DMA on SI
drm/radeon/kms: Add initial support for async DMA on cayman/TN
drm/radeon/kms: Add initial support for async DMA on evergreen
drm/radeon/kms: Add initial support for async DMA on r6xx/r7xx
The spi support code works on SPARC too. No reason to exclude it from
the party.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
DMA engine has special packets to facilitate this and it also keeps
the 3D engine free for other things.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
DMA engine has special packets to facilitate this and it also keeps
the 3D engine free for other things.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Async DMA has a special packet for contiguous pt updates
which saves overhead.
v2: leave the CP method enabled for now as doing the updates
in the DMA rings is not working properly yet.
v3: update for 2 level pts
v4: rebase
v5: drop pte/pde packet. doesn't seem to work on NI.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The description for tcp_fin_timeout should be tigher and more clear.
In addition to being tighter, we should make the spelling of the
state name consistent with what utilities report, remove the now
dated reference to 2.2 and put the default in the consistent place.
Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are 2 async DMA engines on cayman, one at 0xd000 and
one at 0xd800. The programming interface is the same as
evergreen however there are some changes to the commands
for using vmids.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Pretty similar to 6xx/7xx except the count field increased in the
packet header and the max IB size increased.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Instead of updating stats before sending a packet,
update them after processing the packet's status.
This makes minstrel in line with minstrel_ht.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The support was already written, but the binding documentation was
lacking.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This can lead to a panic if the driver isn't ready to
handle them. Since our interrupt line is shared, we can get
an interrupt at any time (and CONFIG_DEBUG_SHIRQ checks
that even when the interrupt is being freed).
If the op_mode has gone away, we musn't call it. To avoid
this the transport disables the interrupts when the hw is
stopped and the op_mode is leaving.
If there is an event that would cause an interrupt the INTA
register is updated regardless of the enablement of the
interrupts: even if the interrupts are disabled, the INTA
will be changed, but the device won't issue an interrupt.
But the ISR can be called at any time, so we ought ignore
the value in the INTA otherwise we can call the op_mode
after it was freed.
I found this bug when the op_mode_start failed, and called
iwl_trans_stop_hw(trans, true). Then I played with the
RFKILL button, and removed the module.
While removing the module, the IRQ is freed, and the ISR is
called (CONFIG_DEBUG_SHIRQ enabled). Panic.
Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
We know that we have issues with the fw in the reclaim path.
This is why iwl_reclaim doesn't complain too loud when it
happens since it is recoverable. Somehow, the caller of
iwl_reclaim however WARNed when it happens. This doesn't
make any sense.
When I digged into the history of that code, I discovered
that this bug occurs only when we receive a BA notification.
So move the W/A in the BA notification handling code where
it was before.
This patch addresses:
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2387
Cc: stable@vger.kernel.org
Reported-by: Florian Reitmeir <florian@reitmeir.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The WARN_ON_ONCE() check for scan_request will not correctly detect
a NULL pointer for scan_type == IWL_SCAN_NORMAL. Make it explicit
that the check only applies to normal scans.
Convert WARN_ON_ONCE to WARN_ON since priv->scan_request really _can't_
be NULL for normal scans. If it is then we should emit frequent warnings.
This smatch warning led to scrutiny of iwlagn_request_scan():
drivers/net/wireless/iwlwifi/dvm/scan.c:894 iwlagn_request_scan() error: we previously assumed 'priv->scan_request' could be null (see line 792)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Flags being used by atomic operations in inode flags (e.g.
ext4_test_inode_flag(), should be consistent with that actually stored
in inodes, i.e.: EXT4_XXX_FL.
It ensures that this consistency is checked at build-time, not at
run-time.
Currently, the flags consistency are being checked at run-time, but,
there is no real reason to not do a build-time check instead of a
run-time check. The code is comparing macro defined values with enum
type variables, where both are constants, so, there is no problem in
comparing constants at build-time.
enum variables are treated as constants by the C compiler, according
to the C99 specs (see www.open-std.org/jtc1/sc22/wg14/www/docs/n1124.pdf
sec. 6.2.5, item 16), so, there is no real problem in comparing an
enumeration type at build time
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Ted has sent out a RFC about removing this feature. Eric and Jan
confirmed that both RedHat and SUSE enable this feature in all their
product. David also said that "As far as I know, it's enabled in all
Android kernels that use ext4." So it seems OK for us.
And what's more, as inline data depends its implementation on xattr,
and to be frank, I don't run any test again inline data enabled while
xattr disabled. So I think we should add inline data and remove this
config option in the same release.
[ The savings if you disable CONFIG_EXT4_FS_XATTR is only 27k, which
isn't much in the grand scheme of things. Since no one seems to be
testing this configuration except for some automated compile farms, on
balance we are better removing this config option, and so that it is
effectively always enabled. -- tytso ]
Cc: David Brown <davidb@codeaurora.org>
Cc: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Since NFSd service is per-net now, we have to pass proper network
context in nfsd_shutdown() from NFSd kthreads.
The simplest way I found is to get proper net from one of transports
with permanent sockets.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Function nfsd_shutdown is called from two places: nfsd_last_thread (when last
kernel thread is exiting) and nfsd_svc (in case of kthreads starting error).
When calling from nfsd_svc(), we can be sure that per-net resources are
allocated, so we don't need to check per-net nfsd_net_up boolean flag.
This allows us to remove nfsd_shutdown function at all and move check for
per-net nfsd_net_up boolean flag to nfsd_last_thread.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Since we have generic NFSd resurces, we have to introduce some way how to
allocate and destroy those resources on first per-net NFSd start and on
last per-net NFSd stop respectively.
This patch replaces global boolean nfsd_up flag (which is unused now) by users
counter and use it to determine either we need to allocate generic resources
or destroy them.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This patch moves nfsd_startup_generic() and nfsd_shutdown_generic()
calls to nfsd_startup_net() and nfsd_shutdown_net() respectively, which
allows us to call nfsd_startup_net() instead of nfsd_startup() and makes
the code look clearer. It also modifies nfsd_svc() and nfsd_shutdown()
to check nn->nfsd_net_up instead of global nfsd_up. The latter is now
used only for generic resources shutdown and is currently useless. It
will replaced by NFSd users counter later in this series.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
NFSd have per-net resources and resources, used globally.
Let's move generic resources init and shutdown to separated functions since
they are going to be allocated on first NFSd service start and destroyed after
last NFSd service shutdown.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This patch makes main step in NFSd containerisation.
There could be different approaches to how to make NFSd able to handle
incoming RPC request from different network namespaces. The two main
options are:
1) Share NFSd kthreads betwween all network namespaces.
2) Create separated pool of threads for each namespace.
While first approach looks more flexible, second one is simpler and
non-racy. This patch implements the second option.
To make it possible to allocate separate pools of threads, we have to
make it possible to allocate separate NFSd service structures per net.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This is simple: an NFSd service can be started at different times in
different network environments. So, its "boot time" has to be assigned
per net.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This patch introduces introduces per-net "nfsd_net_up" boolean flag, which has
the same purpose as general "nfsd_up" flag - skip init or shutdown of per-net
resources in case of they are inited on shutted down respectively.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
NFSd resources are partially per-net and partially globally used.
This patch splits resources init and shutdown and moves per-net code to
separated functions.
Generic and per-net init and shutdown are called sequentially for a while.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Precursor patch. Hard-coded "init_net" will be replaced by proper one in
future.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Precursor patch. Hard-coded "init_net" will be replaced by proper one in
future.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Precursor patch. Hard-coded "init_net" will be replaced by proper one in
future.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Precursor patch. Hard-coded "init_net" will be replaced by proper one in
future.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Precursor patch. Hard-coded "init_net" will be replaced by proper one in
future.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Precursor patch. Hard-coded "init_net" will be replaced by proper one in
future.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
There could be a situation, when NFSd was started in one network namespace, but
stopped in another one.
This will trigger kernel panic, because RPCBIND client is stored on per-net
NFSd data, and will be NULL on NFSd shutdown.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
With NFSv4, if we create a file then open it we explicit avoid checking
the permissions on the file during the open because the fact that we
created it ensures we should be allow to open it (the create and the
open should appear to be a single operation).
However if the reply to an EXCLUSIVE create gets lots and the client
resends the create, the current code will perform the permission check -
because it doesn't realise that it did the open already..
This patch should fix this.
Note that I haven't actually seen this cause a problem. I was just
looking at the code trying to figure out a different EXCLUSIVE open
related issue, and this looked wrong.
(Fix confirmed with pynfs 4.0 test OPEN4--bfields)
Cc: stable@kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
[bfields: use OWNER_OVERRIDE and update for 4.1]
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Pointer to client tracking operations - client_tracking_ops - have to be
containerized, because different environment can support different trackers
(for example, legacy tracker currently is not suported in container).
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
We've originally added this in
commit 291427f5fd
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Fri Jul 29 12:42:37 2011 -0700
drm/i915: apply phase pointer override on SNB+ too
and then copy-pasted it over to ivb/ppt. The w/a was originally added
for ilk/ibx in
commit 5b2adf8971
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Thu Oct 7 16:01:15 2010 -0700
drm/i915: add Ironlake clock gating workaround for FDI link training
and fixed up a bit in
commit 6f06ce184c
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Tue Jan 4 15:09:38 2011 -0800
drm/i915: set phase sync pointer override enable before setting phase sync pointer
It turns out that this w/a isn't actually required on cpt/ppt and
positively harmful on ivb/ppt when using fdi B/C links - it results in
a black screen occasionally, with seemingfully everything working as
it should. The only failure indication I've found in the hw is that
eventually (but not right after the modeset completes) a pipe underrun
is signalled.
Big thanks to Arthur Runyan for all the ideas for registers to check
and changes to test, otherwise I couldn't ever have tracked this down!
Cc: "Runyan, Arthur J" <arthur.j.runyan@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
ieee80211_free_txskb() needs to be used instead of dev_kfree_skb_any for
tx packets passed to the driver from mac80211
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
ieee80211_free_txskb() needs to be used instead of dev_kfree_skb_any for
tx packets passed to the driver from mac80211
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The calibration data for devices w/o a separate
EEPROM chip can be specified via the 'eeprom_data'
field of 'ath9k_platform_data'. The 'eeprom_data'
is usually filled from board specific setup
functions. It is easy if the EEPROM data is mapped
to the memory, but it can be complicated if it is
stored elsewhere.
The patch adds support for loading of the EEPROM
data via the firmware API to avoid this limitation.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The 'ath9k_hw_nvram_read' function takes a
'struct ath_common *' as its first argument.
Almost each of its caller has a 'struct ath_hw *'
parameter in their argument list, and that is
dereferenced in order to get the 'struct ath_common'
pointer.
Change the first argument of 'ath9k_hw_nvram_read'
to be a 'struct ath_hw *', and remove the dereference
calls from the callers.
Also change the type of the first argument of the
ar9300_eeprom_read_{byte,word} functions.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Show the EEPROM offset of the failed read operation
in 'ath9k_hw_nvram_read'. The debug message is more
informative this way.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The fill_eeprom functions are printing the same
debug message in case the 'ath9k_hw_nvram_read'
function fails. Remove the duplicated code from
fill_eeprom functions and add the ath_dbg call
directly into 'ath9k_hw_nvram_read'.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
While AR_PHY_CCA_NOM_VAL_* does contain the expected internal noise floor
for a chip measured in clean air, it refers to the lowest expected reading.
Depending on the frequency, this measurement can vary by about 6db, thus
causing a higher reported channel noise and signal strength.
Factor in the 6db offset when converting internal noisefloor to channel noise.
This patch makes the reported values more accurate for all chips without
affecting NF calibration behavior.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
