Pull block layer fix from Jens Axboe:
"Just one patch in this pull request, fixing a regression caused by a
'mathematically correct' change to lcm()"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: fix blk_stack_limits() regression due to lcm() change
With this patch kernel will be able to handle setup request. This is
needed if we would like to handle control mesages with extension
headers. User space will be only resposible for reading setup data and
checking if scenario is conformance to specification (dst and src device
bnep role). In case of new user space, setup data must be leaved(peek
msg) on queue. New bnep session will be responsible for handling this
data.
Signed-off-by: Grzegorz Kolodziejczyk <grzegorz.kolodziejczyk@tieto.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Handling extended headers of control frames is required BNEP
functionality. This patch refractor bnep rx frame handling function.
Extended header for control frames shouldn't be omitted as it was
previously done. Every control frame should be checked if it contains
extended header and then every extension should be parsed separately.
Signed-off-by: Grzegorz Kolodziejczyk <grzegorz.kolodziejczyk@tieto.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This is needed if user space wants to know supported bnep features
by kernel, e.g. if kernel supports sending response to bnep setup
control message. By now there is no possibility to know supported
features by kernel in case of bnep. Ioctls allows only to add connection,
delete connection, get connection list, get connection info. Adding
connection if it's possible (establishing network device connection) is
equivalent to starting bnep session. Bnep session handles data queue of
transmit, receive messages over bnep channel. It means that if we add
connection the received/transmitted data will be parsed immediately. In
case of get bnep features we want to know before session start, if we
should leave setup data on socket queue and let kernel to handle with it,
or in case of no setup handling support, if we should pull this message
and handle setup response within user space.
Signed-off-by: Grzegorz Kolodziejczyk <grzegorz.kolodziejczyk@tieto.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Now that resizing is completely automatic, we need to remove
the max_size setting or the test will fail.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stas Sergeev says:
====================
mvneta: SGMII-based in-band link state signaling
Currently the fixed-link DT binding is pre-configured and
cannot be changed in run-time. This means the cable unplug
events are not being detected, and the link parameters can't
be negotiated.
The following patches are needed when mvneta is used
in fixed-link mode (without MDIO).
They add an API to fixed_phy that allows to update
status, and use that API in the mvneta driver when parsing
the SGMII in-band status.
There is also another implementation that doesn't add any API
and does everything in mvneta driver locally:
https://lkml.org/lkml/2015/3/31/327
I'll let people decide which approach is better.
No strong opinion on my side.
====================
Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
When MDIO bus is unavailable (common setup for SGMII), the in-band
signaling must be used to correctly track link state.
This patch enables the in-band status delivery for link state changes, namely:
- link up/down
- link speed
- duplex full/half
fixed_phy_update_state() is used to update phy status.
CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
CC: Florian Fainelli <f.fainelli@gmail.com>
CC: netdev@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently fixed_phy uses a callback to periodically poll the link state.
This patch adds the fixed_phy_update_state() API.
It solves the following problems:
- On link state interrupt, MAC driver can't update status.
Instead it needs to provide the callback to periodically query
the HW about the link state. It is more efficient to update status
after interrupt.
- The callback needs to be unregistered before phy_disconnect(),
or otherwise it will be called with net_dev==NULL. phy_disconnect()
does not have enough info to unregister the callback automatically.
- The callback needs to be registered before of_phy_connect() to
avoid running with outdated state, but of_phy_connect() returns the
phy_device pointer, which is needed to register the callback. Registering
it before of_phy_connect() will therefore require a hack to get the
pointer earlier.
Overall, this addition makes the subsequent patch that implements
SGMII link status for mvneta, much cleaner.
CC: Florian Fainelli <f.fainelli@gmail.com>
CC: netdev@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds the ability to read out the skb->priority from an eBPF
program, so that it can be taken into account from a tc filter
or action for the use-case where the priority is not being used
to directly override the filter classification in a qdisc, but
to tag traffic otherwise for the classifier; the priority can be
assigned from various places incl. user space, in future we may
also mangle it from an eBPF program.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Send command not understood response should be verified if it was
successfully sent, like all send responses.
Signed-off-by: Grzegorz Kolodziejczyk <grzegorz.kolodziejczyk@tieto.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Pull x86 fixes from Ingo Molnar:
"Misc fixes: a SYSRET single-stepping fix, a dmi-scan robustization
fix, a reboot quirk and a kgdb fixlet"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kgdb/x86: Fix reporting of 'si' in kgdb on x86_64
x86/asm/entry/64: Disable opportunistic SYSRET if regs->flags has TF set
x86/reboot: Add ASRock Q1900DC-ITX mainboard reboot quirk
MAINTAINERS: Change the x86 microcode loader maintainer
firmware: dmi_scan: Prevent dmi_num integer overflow
Simple bugfix for bad device tree data on the PA-Semi platform
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Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux
Pull devicetree fix from Grant Likely:
"Simple bugfix for bad device tree data on the PA-Semi platform"
* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
drivers/of: Add empty ranges quirk for PA-Semi
Pull CIFS fixes from Steve French:
"A set of small cifs fixes fixing a memory leak, kernel oops, and
infinite loop (and some spotted by Coverity)"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
Fix warning
Fix another dereference before null check warning
CIFS: session servername can't be null
Fix warning on impossible comparison
Fix coverity warning
Fix dereference before null check warning
Don't ignore errors on encrypting password in SMBTcon
Fix warning on uninitialized buftype
cifs: potential memory leaks when parsing mnt opts
cifs: fix use-after-free bug in find_writable_file
cifs: smb2_clone_range() - exit on unhandled error
Looking over the implementation for jhash2 and comparing it to jhash_3words
I realized that the two hashes were in fact very different. Doing a bit of
digging led me to "The new jhash implementation" in which lookup2 was
supposed to have been replaced with lookup3.
In reviewing the patch I noticed that jhash2 had originally initialized a
and b to JHASH_GOLDENRATIO and c to initval, but after the patch a, b, and
c were initialized to initval + (length << 2) + JHASH_INITVAL. However the
changes in jhash_3words simply replaced the initialization of a and b with
JHASH_INITVAL.
This change corrects what I believe was an oversight so that a, b, and c in
jhash_3words all have the same value added consisting of initval + (length
<< 2) + JHASH_INITVAL so that jhash2 and jhash_3words will now produce the
same hash result given the same inputs.
Fixes: 60d509c823 ("The new jhash implementation")
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2015-04-03
This series contains updates to i40e and i40evf only.
Anjali provides a fix for verifying outer UDP receive checksum. Also
adds helpful information to display when figuring out the cause of
HMC errors.
Mitch provides a fix to prevent a malicious or buggy VF driver from
sending an invalid index into the VSI array which could panic the host.
Cleans up the code where a function was moved, but the message did
not follow. Adds protection to the VLAN filter list, same as the
MAC filter list, to protect from corruption if the watchdog happens
to run at the same time as a VLAN filter is being added/deleted.
Jesse changes several memcpy() statements to struct assignments which
are type safe and preferable. Fixed a bug when skb allocation fails,
where we should not continue using the skb pointer. Also fixed a void
function in FCoE which should not be returning anything.
Greg fixes both i40e and i40evf to set the Ethernet protocol correctly
when transmit VLAN offloads are disabled.
Shannon fixes up VLAN messages when ports are added or removed, which
were giving bogus index info. Also aligned the message text style
with other messages in the driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This paraphrases DaveM (and steals some of his words) explaining why
a device shouldn't return NETDEV_TX_BUSY, even though it looks so inviting
to driver authors.
See http://www.spinics.net/lists/netdev/msg322350.html
Inspired-by: David Miller <davem@davemloft.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
First, let's explain the problem.
Suppose you have an ipip interface that stands in the netns foo and its link
part in the netns bar (so the netns bar has an nsid into the netns foo).
Now, you remove the netns bar:
- the bar nsid into the netns foo is removed
- the netns exit method of ipip is called, thus our ipip iface is removed:
=> a netlink message is built in the netns foo to advertise this deletion
=> this netlink message requests an nsid for bar, thus a new nsid is
allocated for bar and never removed.
This patch adds a check in peernet2id() so that an id cannot be allocated for
a netns which is currently destroyed.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts
commit 4217291e59 ("netns: don't clear nsid too early on removal").
This is not the right fix, it introduces races.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ian Morris says:
====================
ipv4: coding style - comparisons with NULL
Per the suggestion of Joe Perches, attached is a patch which aligns the
coding style in ipv4 for comparisons with NULL.
The code uses multiple different styles when comparing with NULL (I.e.
x == NULL and !x as well as x != NULL and x). Generally the latter form
is preferred in netdev and so this changes aligns the code to this style.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The ipv4 code uses a mixture of coding styles. In some instances check
for non-NULL pointer is done as x != NULL and sometimes as x. x is
preferred according to checkpatch and this patch makes the code
consistent by adopting the latter form.
No changes detected by objdiff.
Signed-off-by: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ipv4 code uses a mixture of coding styles. In some instances check
for NULL pointer is done as x == NULL and sometimes as !x. !x is
preferred according to checkpatch and this patch makes the code
consistent by adopting the latter form.
No changes detected by objdiff.
Signed-off-by: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bump.
Change-ID: I7dc88baa33264e5919bc938adf76706573209432
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Refactor VF RSS code to allow RSS on a single queue and eliminate
the need for the next_queue function.
Change-ID: I9253bad96b7f542ee7036e15636db0e5d58d8ef2
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The MAC filter list is protected by a critical task bit, and the VLAN
list should be protected as well. This prevents list corruption if the
watchdog happens to run at the same time as a VLAN filter is being added
or deleted.
Change-ID: Ia4867cebbbb046a1f38012771b288a634ca5882b
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This does not affect the Virtual channel API as such but it changes the
meaning of what is communicated to the VSI resource struct as vsi_id.
Earlier vsi_idx was being passed in, which was the index in the PF's VSI
array. Now we pass vsi_id as communicated by the FW to the driver.
This will help with future expansion of VF and FW communication.
With this in place now the VF and Virtual channel driver change to move over
to VSI id use is complete and is validated.
Change-ID: I14246ef82b3b3dc1fa76291d2dd0c05d12cedb7c
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In some cases, the hardware would continue to try to access the FDIR
ring after entering D3Hot state, which would cause either PCIe errors or
NMIs, depending upon system configuration.
Explicitly stop FDIR in our shutdown routine to eliminate this
possibility.
Change-ID: Ib98060d6352ec595ab9a78bfe252675a9fa5d8bc
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
When the VXLAN ports are added and removed, the messaging was giving some
bogus index info, the port was always '0' for the delete, and the message
text style didn't match other messages in the driver. Also, there was an
over-use of the tertiary statement which made reading a little harder
than necessary.
Change-ID: Ie805182a697b8b4c12024403ada87fd4e4fa2358
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Do not register or try to de-register DCB applications with the DCBNL
layer in case of NIC partitions when adapter is in MFP mode.
Change-ID: I603d042a61983a6562be471c6a2b181572504118
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
If transmit VLAN HW offloads are disabled then the network stack sends up
an skb with the protocol set to 8021q. In that case to get the correct
checksum offloads we have to reset the skb protocol to the encapsulated
ethertype.
Change-ID: I903d78533de09b1c5d3ec695ee1990dd0fa5dd0d
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The call to pci_disable_sriov got moved, but the message about not
disabling VFs didn't move. So move it. While we're at, reword the
message a bit to make it more consistent with other driver messages.
Change-ID: I17d3e15e4fcfd5c9431a96ecb0117d728d3da18b
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
A function was calling i40e_tx_map with return, but tx_map returns
void, and the caller returns void, so just drop the return, and
everything is good.
Change-ID: I53fc676d517864761e7cbb8ca83f1ef0c15b1f8f
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
If the skb allocation fails we should not continue using the skb
pointer. Breaking out at the point of failure means that at the next
RX interrupt the driver will try the allocation again.
Change-ID: Iefaad69856ced7418bfd92afe55322676341f82e
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Several memcpys are not necessary and can be changed to structure
assignments. Struct assignments are always type safe so this
is preferable.
Change-ID: I7daf45a4b5e799c686b9d5c8ba9db047584ab82b
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
HMC_ERRORINFO and HMC_ERRORDATA helps explain the cause of HMC error.
Change-ID: I053bbc175a5f4c5c3e9ec2ea7400d5c56aaa4ec1
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Validate that the VF has sent us a valid VSI index before actually using
that index. Without this code, a malicious or buggy VF driver could
panic the host by sending an invalid index into the VSI array.
Change-ID: I66a177687a0dcc281ec83e714d3813d70d18c8b4
Reported-by: Nick Nunley <nicholas.d.nunley@intel.com>
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Inner protocol being UDP should not stop us from verifying Outer UDP
checksum correctness.
If the Outer protocol is not UDP (NVGRE) we should not be doing a UDP
checksum check. If the packet has zero checksum, skip checksum check.
Change-ID: Ie7f153feb276a59f66a54a0938901b2c0a8100fa
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
We need to wait for the flying timers, since we
are going to free the mrtable right after it.
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We have to hold rtnl lock for fib_rules_unregister()
otherwise the following race could happen:
fib_rules_unregister(): fib_nl_delrule():
... ...
... ops = lookup_rules_ops();
list_del_rcu(&ops->list);
list_for_each_entry(ops->rules) {
fib_rules_cleanup_ops(ops); ...
list_del_rcu(); list_del_rcu();
}
Note, net->rules_mod_lock is actually not needed at all,
either upper layer netns code or rtnl lock guarantees
we are safe.
Cc: Alexander Duyck <alexander.h.duyck@redhat.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is the IPv4 part for commit 905a6f96a1
(ipv6: take rtnl_lock and mark mrt6 table as freed on namespace cleanup).
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull drm fixes from Dave Airlie:
"One drm core fix, one exynos regression fix, two sets of radeon fixes
(Alex was a bit behind last week), and two i915 fixes.
Nothing too serious we seem to have calmed down i915 since last week"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: fix wait in radeon_mn_invalidate_range_start
drm/radeon: add extra check in radeon_ttm_tt_unpin_userptr
drm: Exynos: Respect framebuffer pitch for FIMD/Mixer
drm/i915: Reject the colorkey ioctls for primary and cursor planes
drm/i915: Skip allocating shadow batch for 0-length batches
drm/radeon: programm the VCE fw BAR as well
drm/radeon: always dump the ring content if it's available
radeon: Do not directly dereference pointers to BIOS area.
drm/radeon/dpm: fix 120hz handling harder
drm/edid: set ELD for firmware and debugfs override EDIDs
- GICv3 ITS
- Small batch of fixes discovered while writing the kvm ITS emulation
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Merge tag 'irqchip-fixes-4.0-2' of git://git.infradead.org/users/jcooper/linux
Pull irqchip fixes from Jason Cooper:
"This is the second round of fixes for irqchip. It contains some fixes
found while the arm64 guys were writing the kvm gicv3 its emulation.
GICv3 ITS:
- Small batch of fixes discovered while writing the kvm ITS emulation"
* tag 'irqchip-fixes-4.0-2' of git://git.infradead.org/users/jcooper/linux:
irqchip: gicv3-its: Use non-cacheable accesses when no shareability
irqchip: gicv3-its: Fix PROP/PEND and BASE/CBASE confusion
irqchip: gicv3-its: Fix device ID encoding
irqchip: gicv3-its: Fix encoding of collection's target redistributor
Just two small fixes for radeon, both destined for stable.
* 'drm-fixes-4.0' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix wait in radeon_mn_invalidate_range_start
drm/radeon: add extra check in radeon_ttm_tt_unpin_userptr
Fix display on issue to Exynos5250 based Snow(1366x768) board.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm: Exynos: Respect framebuffer pitch for FIMD/Mixer
one oops fixes and a 0-length allocation fix from next backported.
* tag 'drm-intel-fixes-2015-04-02' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Reject the colorkey ioctls for primary and cursor planes
drm/i915: Skip allocating shadow batch for 0-length batches
Here's a single drm core fix, cc: stable, that affects i915
users.
* tag 'topic/drm-fixes-2015-04-02' of git://anongit.freedesktop.org/drm-intel:
drm/edid: set ELD for firmware and debugfs override EDIDs
- Fix two regressions in the balloon driver's use of memory hotplug
when used in a PV guest.
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Merge tag 'stable/for-linus-4.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen regression fixes from David Vrabel:
"Fix two regressions in the balloon driver's use of memory hotplug when
used in a PV guest"
* tag 'stable/for-linus-4.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/balloon: before adding hotplugged memory, set frames to invalid
x86/xen: prepare p2m list for memory hotplug
On processing cumulative ACKs, the FRTO code was not checking the
SACKed bit, meaning that there could be a spurious FRTO undo on a
cumulative ACK of a previously SACKed skb.
The FRTO code should only consider a cumulative ACK to indicate that
an original/unretransmitted skb is newly ACKed if the skb was not yet
SACKed.
The effect of the spurious FRTO undo would typically be to make the
connection think that all previously-sent packets were in flight when
they really weren't, leading to a stall and an RTO.
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Fixes: e33099f96d ("tcp: implement RFC5682 F-RTO")
Signed-off-by: David S. Miller <davem@davemloft.net>
