This patch combines the recently added VF messaging and configuration
functionality with the interfaces provided by the kernel to allow for
configuration and management of SR-IOV.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change adds a set of functions to fm10k_pf.c which allows for
configuring the VF via a set of standardized TLV messages.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch provides the functions necessary to configure the VF making use
of the same API pointers as the PF.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for the PF <-> VF mailbox. It functions similar to
the PF <-> SM mailbox however there are several modifications made to
improve the reliability of the mailbox itself. In addition the PF/VF
mailbox is much smaller an only supports a total size of 16 DWORDs vs the
1024 DWORDS provided for the PF/SM mailbox.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for L2 MACVLAN by making use of the fact that the
RRC provides a unique tag per filter called a Global Resource Tag, or GLORT.
In the case of this offload what I have done is assigned a linear block of
these so that each GLORT represents one of the MACVLAN netdevs. By doing
this I can share the Rx queues and Tx queues for all of the MACVLAN netdevs
while allowing them to be demuxed in the Rx cleanup path.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for basic offloads including TSO, Tx checksum, Rx
checksum, Rx hash, and the same features applied to VXLAN/NVGRE tunnels.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch takes the driver from supporting a single queue to supporting
multiple queues. The upper queue limit for the PF is 128 queues and the
upper limit for the VF is (128 / num_vfs) rounded down to nearest power of 2.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add PCI power management and error handling to allow the device to support
suspend/resume and recovery of any PCIe errors. The fm10k devices do not
support wake on LAN, and there is no plan to add this as a feature.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds basic ethtool support to the device to allow for configuration.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change adds the transmit and receive fastpath and interrupt handlers.
With this code in place the network device is now able to send and receive
frames over the network interface using a single queue.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Rick Jones <rick.jones2@hp.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for allocating, configuring, and freeing Tx/Rx ring
resources. With these changes in place the descriptor queues are in a
state where they are ready to transmit or receive if provided buffers.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for the service task. The service task takes care
of all processes that cannot be done in interrupt context such as resets,
stats updates, TC prio updates, and checking for hung or detached devices.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This change adds the defines and structures necessary to support both Tx
and Rx descriptor rings.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch set adds interrupt support for the fm10k interfaces. The
interfaces themselves only support MSI-X, so neither MSI or legacy
interrupts are used.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Add support for brining the interface up/down. This is still primitive yet
as we have not yet added support for the descriptor queues.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for L2 filtering.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Now that we have the ability to configure the basic settings on the device
we can start allocating and configuring a netdev for the interface.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for the operations which will configure filters on
the interface. In addition with these patches we begin to introduce the PF
messages that will be sent to or received from the Switch Management
entity.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds basic support for the PF. With this it is possible to
bring up the interface, but without being able to configure any of the
filters on the interface itself.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for the mailbox that connects the PF to the Switch
Management entity. This mailbox will pass TLV formatted messages between
the two entities by using a pair of shared ring buffers.
The primary use of the mailbox is to configure L2 forwarding addresses,
VLANs, and general resource allocation from the switch.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds generic mailbox support. The general idea of the mailboxes
is to use a pair of ring buffers, one for request, one for response to send
data between the local driver and some remote entity be it the PF of the
Switch Manager.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds the basic read/write operations for accessing the hardware.
In addition to read read functionality the read functions also provide
surprise remove detection in the event that the device either loses power
or is removed.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds support for the TVL message formats supported by the PF,
VF, and Switch Management entity.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds the basic defines and structures needed by the PF for
operation.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds the beginning framework onto which I am going to add the
fm10k driver which supports the Intel(R) FM10000 Ethernet Switch Host
Interface.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
SCO connection cannot be setup to devices that do not support retransmission.
Patch based on http://permalink.gmane.org/gmane.linux.bluez.kernel/7779 and
adapted for this kernel version.
Code changed to check SCO/eSCO type before setting retransmission effort
and max. latency. The purpose of the patch is to support older devices not
capable of eSCO.
Tested on Blackberry 655+ headset which does not support retransmission.
Credits go to Alexander Sommerhuber.
Signed-off-by: Bernhard Thaler <bernhard.thaler@r-it.at>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This reverts commit 9cb0e39423.
It causes my Sony Vaio Pro 11 to immediately reboot at startup.
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Anvin <hpa@zytor.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
too some time to narrow down. Although a bit intrusive, this would
be good to get into the -rc cycle as there are quite a few boards
out there with omap3 es2.1 and es3.0, and we have those in at least
three boot test systems too that show errors without this patch.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=3MaO
-----END PGP SIGNATURE-----
Merge tag 'fix-v3.17-io-chain-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Regression fix for early omap3 revisions for wake-up events that
too some time to narrow down. Although a bit intrusive, this would
be good to get into the -rc cycle as there are quite a few boards
out there with omap3 es2.1 and es3.0, and we have those in at least
three boot test systems too that show errors without this patch.
* tag 'fix-v3.17-io-chain-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP3: Fix I/O chain clock line assertion timed out error
Signed-off-by: Olof Johansson <olof@lixom.net>
- Fix for omap_l3_noc bus code
- Serial console fix for cm-t53
- NAND timings fix for dra7-evm
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=NJhf
-----END PGP SIGNATURE-----
Merge tag 'fixes-v3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Few regression fixes for omaps for the -rc cycle:
- Fix for omap_l3_noc bus code
- Serial console fix for cm-t53
- NAND timings fix for dra7-evm
* tag 'fixes-v3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
bus: omap_l3_noc: Fix connID for OMAP4
ARM: dts: cm-t54: fix serial console power supply.
ARM: dts: dra7-evm: Fix NAND GPMC timings
Signed-off-by: Olof Johansson <olof@lixom.net>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=s3j+
-----END PGP SIGNATURE-----
Merge tag 'fixes-v3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into fixes
Keystone Edision dts fix for -rc cycle. Fix the PCIE and USB nodes.
* tag 'fixes-v3.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
ARM: keystone: dts: fix bindings for pcie and usb clock nodes
Signed-off-by: Olof Johansson <olof@lixom.net>
Commit 63288b721a ("ARM: imx: fix shared gate clock") attempted to fix
an issue with particular enable/disable sequence from two shared gate
clocks. But unfortunately, while it partially fixed the issue, it also
did something wrong in .is_enabled() function hook. In case of shared
gate, the function shouldn't really query the hardware state via
share_count, because the function is trying to query the enabling state
of the clock in question, not the hardware state which is shared by
multiple clocks.
Fix the issue by returning the enable_count of the clock itself which is
maintained by clock core, in case it's a clock sharing hardware gate
with others. As the result, the initialization of share_count per
hardware state is not needed now. So remove it.
Reported-by: Fabio Estevam <fabio.estevam@freescale.com>
Fixes: 63288b721a ("ARM: imx: fix shared gate clock")
Cc: <stable@vger.kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
pcie_poll_cmd() take msecs instead of jiffies, so convert timeout to msecs.
Fixes: 40b960831c ("PCI: pciehp: Compute timeout from hotplug command start time")
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Pull networking fixes from David Miller:
1) If the user gives us a msg_namelen of 0, don't try to interpret
anything pointed to by msg_name. From Ani Sinha.
2) Fix some bnx2i/bnx2fc randconfig compilation errors.
The gist of the issue is that we firstly have drivers that span both
SCSI and networking. And at the top of that chain of dependencies
we have things like SCSI_FC_ATTRS and SCSI_NETLINK which are
selected.
But since select is a sledgehammer and ignores dependencies,
everything to select's SCSI_FC_ATTRS and/or SCSI_NETLINK has to also
explicitly select their dependencies and so on and so forth.
Generally speaking 'select' is supposed to only be used for child
nodes, those which have no dependencies of their own. And this
whole chain of dependencies in the scsi layer violates that rather
strongly.
So just make SCSI_NETLINK depend upon it's dependencies, and so on
and so forth for the things selecting it (either directly or
indirectly).
From Anish Bhatt and Randy Dunlap.
3) Fix generation of blackhole routes in IPSEC, from Steffen Klassert.
4) Actually notice netdev feature changes in rtl_open() code, from
Hayes Wang.
5) Fix divide by zero in bond enslaving, from Nikolay Aleksandrov.
6) Missing memory barrier in sunvnet driver, from David Stevens.
7) Don't leave anycast addresses around when ipv6 interface is
destroyed, from Sabrina Dubroca.
8) Don't call efx_{arch}_filter_sync_rx_mode before addr_list_lock is
initialized in SFC driver, from Edward Cree.
9) Fix missing DMA error checking in 3c59x, from Neal Horman.
10) Openvswitch doesn't emit OVS_FLOW_CMD_NEW notifications accidently,
fix from Samuel Gauthier.
11) pch_gbe needs to select NET_PTP_CLASSIFY otherwise we can get a
build error.
12) Fix macvlan regression wherein we stopped emitting
broadcast/multicast frames over software devices. From Nicolas
Dichtel.
13) Fix infiniband bug due to unintended overflow of skb->cb[], from
Eric Dumazet. And add an assertion so this doesn't happen again.
14) dm9000_parse_dt() should return error pointers, not NULL. From
Tobias Klauser.
15) IP tunneling code uses this_cpu_ptr() in preemptible contexts, fix
from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits)
net: bcmgenet: call bcmgenet_dma_teardown in bcmgenet_fini_dma
net: bcmgenet: fix TX reclaim accounting for fragments
ipv4: do not use this_cpu_ptr() in preemptible context
dm9000: Return an ERR_PTR() in all error conditions of dm9000_parse_dt()
r8169: fix an if condition
r8152: disable ALDPS
ipoib: validate struct ipoib_cb size
net: sched: shrink struct qdisc_skb_cb to 28 bytes
tg3: Work around HW/FW limitations with vlan encapsulated frames
macvlan: allow to enqueue broadcast pkt on virtual device
pch_gbe: 'select' NET_PTP_CLASSIFY.
scsi: Use 'depends' with LIBFC instead of 'select'.
openvswitch: restore OVS_FLOW_CMD_NEW notifications
genetlink: add function genl_has_listeners()
lib: rhashtable: remove second linux/log2.h inclusion
net: allow macvlans to move to net namespace
3c59x: Fix bad offset spec in skb_frag_dma_map
3c59x: Add dma error checking and recovery
sparc: bpf_jit: fix support for ldx/stx mem and SKF_AD_VLAN_TAG
can: at91_can: add missing prepare and unprepare of the clock
...
The fixes for TI DRA7 remove divide-by-zero errors. The recently merged
AT91 clock driver fixes some bad error checking and the QCOM driver fix
restores audio for that platform, a clear regression. A list iteration
bug in the framework core was hit recently and is fixed up here. Finally
a compilation warning is fixed for efm32gg, which is also a regression
fix.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=dUkX
-----END PGP SIGNATURE-----
Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux
Pull clock layer fixes from Mike Turquette:
"The fixes for the clock tree are mostly run-time bugs in clock
drivers.
The fixes for TI DRA7 remove divide-by-zero errors. The recently
merged AT91 clock driver fixes some bad error checking and the QCOM
driver fix restores audio for that platform, a clear regression. A
list iteration bug in the framework core was hit recently and is fixed
up here. Finally a compilation warning is fixed for efm32gg, which is
also a regression fix"
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
clk/efm32gg: fix dt init prototype
clk: prevent erronous parsing of children during rate change
clk: rockchip: Fix the clocks for i2c1 and i2c2
clk: qcom: Fix sdc 144kHz frequency entry
clk: at91: fix num_parents test in at91sam9260 slow clk implementation
clk: ti: dra7-atl: Provide error check for incoming parameters in set_rate
clk: ti: divider: Provide error check for incoming parameters in set_rate
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIVAwUAVB/u8ROxKuMESys7AQJGxA/9Ep4IwIAclMYcVQtk4zzvz+A9jVw0pu+X
aItU70GcGoxehGlOxyqKXp/dg3CZ7ZPcxmQqzl7nzCZY28or5z/Nu6Y/YII+V0NB
f6vgHPhfGO7CSSdwlSzFY/6DdU/EXhjA3X4suowRPIO3B/2ydLxDe3sahIWY/AhM
4h3ioDR+A4ZZvU8fmw62l9Iae46mkk7KT8Am/2bUJQpENu4caVEtNtyJ2IsiPtZ8
pddgvPL/f+piz4Ufdmc/XH4KB8kiLwU+7t3xfoZnSzYz9Vzcq4sQVvSxqNSaYzSC
REEnELuLEweIh57PP67giZGPE6MA50kISH/soc43yl/oWj9i3cqkNb2JW+nxpvfS
pIHfgRmzqUPe9MrmVUtle9c1HhjAyts3y27JB4onpLghN96JgIcTWJ1vZxnxbXzp
ADVCgc3z8nhttLQMU+NsfD4fHUvj+bxULW1bSPdB5DfSrkpqmQJZBRexeFZWGyA9
p1p9Yaty2Sdq/RPmtIfMPA3cu1D9LG4wkvGPmmEAjnIlKebRBjriKDmCdwf9okWA
m+fAbuBnTjc+R0ERE6Lh5OI72hbwcgyAyDx5RdWkXVIPMBuBK67nR6nJK7vPW4x0
qK0B5Pk2iwobKQMicVSxI+GImeeiQLi798KHJwN4uFBy74rIISWilIsylBrxlxK8
s2hdI83XJJI=
=ojl4
-----END PGP SIGNATURE-----
Merge tag 'fscache-fixes-20140917' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull fs-cache fixes from David Howells:
- Put a timeout in releasepage() to deal with a recursive hang between
the memory allocator, writeback, ext4 and fscache under memory
pressure.
- Fix a pair of refcount bugs in the fscache error handling.
- Remove a couple of unused pagevecs.
- The cachefiles requirement that the base directory support rename
should permit rename2 as an alternative - otherwise certain
filesystems cannot now be used as backing stores (such as ext4).
* tag 'fscache-fixes-20140917' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
CacheFiles: Handle rename2
cachefiles: remove two unused pagevecs.
FS-Cache: refcount becomes corrupt under vma pressure.
FS-Cache: Reduce cookie ref count if submit fails.
FS-Cache: Timeout for releasepage()
Florian Fainelli says:
====================
net: bcmgenet: TX reclaim and DMA fixes
This patch set contains one fix for an accounting problem while reclaiming
transmitted buffers having fragments, and the second fix is to make sure
that the DMA shutdown is properly controlled.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We should not be manipulaging the DMA_CTRL registers directly by writing
0 to them to disable DMA. This is an operation that needs to be timed to
make sure the DMA engines have been properly stopped since their state
machine stops on a packet boundary, not immediately.
Make sure that tha bcmgenet_fini_dma() calls bcmgenet_dma_teardown() to
ensure a proper DMA engine state. As a result, we need to reorder the
function bodies to resolve the use dependency.
Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The GENET driver supports SKB fragments, and succeeds in transmitting
them properly, but when reclaiming these transmitted fragments, we will
only update the count of free buffer descriptors by 1, even for SKBs
with fragments. This leads to the networking stack thinking it has more
room than the hardware has when pushing new SKBs, and backing off
consequently because we return NETDEV_TX_BUSY.
Fix this by accounting for the SKB nr_frags plus one (itself) and update
ring->free_bds accordingly with that value for each iteration loop in
__bcmgenet_tx_reclaim().
Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
this_cpu_ptr() in preemptible context is generally bad
Sep 22 05:05:55 br kernel: [ 94.608310] BUG: using smp_processor_id()
in
preemptible [00000000] code: ip/2261
Sep 22 05:05:55 br kernel: [ 94.608316] caller is
tunnel_dst_set.isra.28+0x20/0x60 [ip_tunnel]
Sep 22 05:05:55 br kernel: [ 94.608319] CPU: 3 PID: 2261 Comm: ip Not
tainted
3.17.0-rc5 #82
We can simply use raw_cpu_ptr(), as preemption is safe in these
contexts.
Should fix https://bugzilla.kernel.org/show_bug.cgi?id=84991
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Joe <joe9mail@gmail.com>
Fixes: 9a4aa9af44 ("ipv4: Use percpu Cache route in IP tunnels")
Acked-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Only the acpi backlight seems to work. Using the
radeon backlight controller causes the backlight to
go off.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=81382
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Add a module parameter to disable the radeon GPU backlight
controller to override the automatic detection. Some
laptops seems to indicate that they use the integrated
controller, but appear to actually use an external
controller.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=81382
v2: fix module parameter description
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This might decrease the chance of IH ring buffer overflows.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Use the same format for all ring indices, and fix the calculation of the
post-overflow RPTR.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Otherwise the bit remains set in rdev->ih.rptr, so the wptr can never
match that and we still have an infinite loop.
This fix allows me to successfully recover from an IH ring buffer
overflow.
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We were using an atomic bitop on the vgic_v2.vgic_elrsr field which was
not aligned to the natural size on 64-bit platforms. This bug showed up
after QEMU correctly identifies the pl011 line as being level-triggered,
and not edge-triggered.
These data structures are protected by a spinlock so simply use a
non-atomic version of the accessor instead.
Tested-by: Joel Schopp <joel.schopp@amd.com>
Reported-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
$ grep CONFIG_CLS_U32_MARK .config
# CONFIG_CLS_U32_MARK is not set
net/sched/cls_u32.c: In function 'u32_change':
net/sched/cls_u32.c:852:1: warning: label 'errout' defined but not used
[-Wunused-label]
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 2da78092 changed the locking from a mutex to a spinlock,
so we now longer sleep in this context. But there was a leftover
might_sleep() in there, which now triggers since we do the final
free from an RCU callback. Get rid of it.
Reported-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Steffen Klassert says:
====================
pull request (net): ipsec 2014-09-22
We generate a blackhole or queueing route if a packet
matches an IPsec policy but a state can't be resolved.
Here we assume that dst_output() is called to kill
these packets. Unfortunately this assumption is not
true in all cases, so it is possible that these packets
leave the system without the necessary transformations.
This pull request contains two patches to fix this issue:
1) Fix for blackhole routed packets.
2) Fix for queue routed packets.
Both patches are serious stable candidates.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
icsk_rto is a 32bit field, and icsk_backoff can reach 15 by default,
or more if some sysctl (eg tcp_retries2) are changed.
Better use 64bit to perform icsk_rto << icsk_backoff operations
As Joe Perches suggested, add a helper for this.
Yuchung spotted the tcp_v4_err() case.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>