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Note also that include/linux/lwtunnel.h is not needed.
CC: Thomas Graf <tgraf@suug.ch>
CC: Roopa Prabhu <roopa@cumulusnetworks.com>
Fixes: 499a24256862 ("lwtunnel: infrastructure for handling light weight tunnels like mpls")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Per RFC 6724, section 4, "Candidate Source Addresses":
It is RECOMMENDED that the candidate source addresses be the set
of unicast addresses assigned to the interface that will be used
to send to the destination (the "outgoing" interface).
Add a sysctl to enable this behaviour.
Signed-off-by: Erik Kline <ek@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Track success and failure of TCP PMTU probing.
Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This add the ability to select a routing table based on the tunnel
id which allows to maintain separate routing tables for each virtual
tunnel network.
ip rule add from all tunnel-id 100 lookup 100
ip rule add from all tunnel-id 200 lookup 200
A new static key controls the collection of metadata at tunnel level
upon demand.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This introduces a new IP tunnel lightweight tunnel type which allows
to specify IP tunnel instructions per route. Only IPv4 is supported
at this point.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allows putting a VXLAN device into a new flow-based mode in which
skbs with a ip_tunnel_info dst metadata attached will be encapsulated
according to the instructions stored in there with the VXLAN device
defaults taken into consideration.
Similar on the receive side, if the VXLAN_F_COLLECT_METADATA flag is
set, the packet processing will populate a ip_tunnel_info struct for
each packet received and attach it to the skb using the new metadata
dst. The metadata structure will contain the outer header and tunnel
header fields which have been stripped off. Layers further up in the
stack such as routing, tc or netfitler can later match on these fields
and perform forwarding. It is the responsibility of upper layers to
ensure that the flag is set if the metadata is needed. The flag limits
the additional cost of metadata collecting based on demand.
This prepares the VXLAN device to be steered by the routing and other
subsystems which allows to support encapsulation for a large number
of tunnel endpoints and tunnel ids through a single net_device which
improves the scalability.
It also allows for OVS to leverage this mode which in turn allows for
the removal of the OVS specific VXLAN code.
Because the skb is currently scrubed in vxlan_rcv(), the attachment of
the new dst metadata is postponed until after scrubing which requires
the temporary addition of a new member to vxlan_metadata. This member
is removed again in a later commit after the indirect VXLAN receive API
has been removed.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rename the tunnel metadata data structures currently internal to
OVS and make them generic for use by all IP tunnels.
Both structures are kernel internal and will stay that way. Their
members are exposed to user space through individual Netlink
attributes by OVS. It will therefore be possible to extend/modify
these structures without affecting user ABI.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This implementation uses lwtunnel infrastructure to register
hooks for mpls tunnel encaps.
It picks cues from iptunnel_encaps infrastructure and previous
mpls iptunnel RFC patches from Eric W. Biederman and Robert Shearman
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Provides infrastructure to parse/dump/store encap information for
light weight tunnels like mpls. Encap information for such tunnels
is associated with fib routes.
This infrastructure is based on previous suggestions from
Eric Biederman to follow the xfrm infrastructure.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch introduces two new RTA attributes to attach encap
data to fib routes.
Example iproute2 command to attach mpls encap data to ipv4 routes
$ip route add 10.1.1.0/30 encap mpls 200 via inet 10.1.1.1 dev swp1
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Suggested-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allow eBPF programs attached to TC qdiscs call skb_vlan_push/pop via
helper functions. These functions may change skb->data/hlen which are
cached by some JITs to improve performance of ld_abs/ld_ind instructions.
Therefore JITs need to recognize bpf_skb_vlan_push/pop() calls,
re-compute header len and re-cache skb->data/hlen back into cpu registers.
Note, skb->data/hlen are not directly accessible from the programs,
so any changes to skb->data done either by these helpers or by other
TC actions are safe.
eBPF JIT supported by three architectures:
- arm64 JIT is using bpf_load_pointer() without caching, so it's ok as-is.
- x64 JIT re-caches skb->data/hlen unconditionally after vlan_push/pop calls
(experiments showed that conditional re-caching is slower).
- s390 JIT falls back to interpreter for now when bpf_skb_vlan_push() is present
in the program (re-caching is tbd).
These helpers allow more scalable handling of vlan from the programs.
Instead of creating thousands of vlan netdevs on top of eth0 and attaching
TC+ingress+bpf to all of them, the program can be attached to eth0 directly
and manipulate vlans as necessary.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2015-07-17
This series contains updates to igb, ixgbe, ixgbevf, i40e, bnx2x,
freescale, siena and dp83640.
Jacob provides several patches to clarify the intended way to implement
both SIOCSHWTSTAMP and ethtool's get_ts_info(). It is okay to support
the specific filters in SIOCSHWTSTAMP by upscaling them to the generic
filters.
Alex Duyck provides a igb patch to pull the time stamp from the fragment
before it gets added to the skb, to avoid a possible issue in which the
fragment can possibly be less than IGB_RX_HDR_LEN due to the time stamp
being pulled after the copybreak check. Also provides a ixgbevf patch to
fold the ixgbevf_pull_tail() call into ixgbevf_add_rx_frag(), which gives
the advantage that the fragment does not have to be modified after it is
added to the skb.
Fan provides patches for ixgbe/ixgbevf to set the receive hash type
based on receive descriptor RSS type.
Todd provides a fix for igb where on check for link on any media other
than copper was not being detected since it was looking on the incorrect
PHY page (due to the page being used gets switched before the function
to check link gets executed).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds some clarification about the intended way to implement
both SIOCSHWTSTAMP and ethtool's get_ts_info. The HWTSTAMP API has
several Rx filters which are very specific, as well as more general
filters. The specific filters really only exist to support some broken
hardware which can't fully implement the generic filters. This patch
adds clarification that it is okay to support the specific filters in
SIOCSHWTSTAMP by upscaling them to the generic filters. In addition,
update the header for ethtool_ts_info to specify that drivers ought to
only report the filters they support without upscaling in this manner.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Reviewed-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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It would be very useful to retrieve the net_cls's classid from an eBPF
program to allow for a more fine-grained classification, it could be
directly used or in conjunction with additional policies. I.e. docker,
but also tooling such as cgexec, can easily run applications via net_cls
cgroups:
cgcreate -g net_cls:/foo
echo 42 > foo/net_cls.classid
cgexec -g net_cls:foo <prog>
Thus, their respecitve classid cookie of foo can then be looked up on
the egress path to apply further policies. The helper is desigend such
that a non-zero value returns the cgroup id.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Thomas Graf <tgraf@suug.ch>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
net/bridge/br_mdb.c
Minor conflict in br_mdb.c, in 'net' we added a memset of the
on-stack 'ip' variable whereas in 'net-next' we assign a new
member 'vid'.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Until now all user mdb entries were added in vlan 0, this patch adds
support to allow the user to specify the vlan for the entry.
About the uapi change a hole in struct br_mdb_entry is used so the size
and offsets are kept the same (verified with pahole and tested with older
iproute2).
Example:
$ bridge mdb
dev br0 port eth1 grp 239.0.0.1 permanent vlan 2000
dev br0 port eth1 grp 239.0.0.1 permanent vlan 200
dev br0 port eth1 grp 239.0.0.1 permanent
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper update from Mike Snitzer:
- a couple small cleanups in dm-cache, dm-verity, persistent-data's
dm-btree, and DM core.
- a 4.1-stable fix for dm-cache that fixes the leaking of deferred bio
prison cells
- a 4.2-stable fix that adds feature reporting for the dm-stats
features added in 4.2
- improve DM-snapshot to not invalidate the on-disk snapshot if
snapshot device write overflow occurs; but a write overflow triggered
through the origin device will still invalidate the snapshot.
- optimize DM-thinp's async discard submission a bit now that late bio
splitting has been included in block core.
- switch DM-cache's SMQ policy lock from using a mutex to a spinlock;
improves performance on very low latency devices (eg. NVMe SSD).
- document DM RAID 4/5/6's discard support
[ I did not pull the slab changes, which weren't appropriate for this
tree, and weren't obviously the right thing to do anyway. At the very
least they need some discussion and explanation before getting merged.
Because not pulling the actual tagged commit but doing a partial pull
instead, this merge commit thus also obviously is missing the git
signature from the original tag ]
* tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm cache: fix use after freeing migrations
dm cache: small cleanups related to deferred prison cell cleanup
dm cache: fix leaking of deferred bio prison cells
dm raid: document RAID 4/5/6 discard support
dm stats: report precise_timestamps and histogram in @stats_list output
dm thin: optimize async discard submission
dm snapshot: don't invalidate on-disk image on snapshot write overflow
dm: remove unlikely() before IS_ERR()
dm: do not override error code returned from dm_get_device()
dm: test return value for DM_MAPIO_SUBMITTED
dm verity: remove unused mempool
dm cache: move wake_waker() from free_migrations() to where it is needed
dm btree remove: remove unused function get_nr_entries()
dm btree: remove unused "dm_block_t root" parameter in btree_split_sibling()
dm cache policy smq: change the mutex to a spinlock
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If the user selected the precise_timestamps or histogram options, report
it in the @stats_list message output.
If the user didn't select these options, no extra tokens are reported,
thus it is backward compatible with old software that doesn't know about
precise timestamps and histogram.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 4.2
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Pull block driver updates from Jens Axboe:
"On top of the 4.3 core block IO changes, here are the driver related
changes for 4.3. Basically just NVMe and nbd this time around:
- NVMe:
- PRACT PI improvement from Alok Pandey.
- Cleanups and improvements on submission queue doorbell and
writing, using CMB if available. From Jon Derrick.
- From Keith, support for setting queue maximum segments, and
reset support.
- Also from Jon, fixup of u64 division issue on 32-bit archs and
wiring up of the reset support through and ioctl.
- Two small cleanups from Matias and Sunad
- Various code cleanups and fixes from Markus Pargmann"
* 'for-4.3/drivers' of git://git.kernel.dk/linux-block:
NVMe: Using PRACT bit to generate and verify PI by controller
NVMe:Remove unreachable code in nvme_abort_req
NVMe: Add nvme subsystem reset IOCTL
NVMe: Add nvme subsystem reset support
NVMe: removed unused nn var from nvme_dev_add
NVMe: Set queue max segments
nbd: flags is a u32 variable
nbd: Rename functions for clearness of recv/send path
nbd: Change 'disconnect' to be boolean
nbd: Add debugfs entries
nbd: Remove variable 'pid'
nbd: Move clear queue debug message
nbd: Remove 'harderror' and propagate error properly
nbd: restructure sock_shutdown
nbd: sock_shutdown, remove conditional lock
nbd: Fix timeout detection
nvme: Fixes u64 division which breaks i386 builds
NVMe: Use CMB for the IO SQes if available
NVMe: Unify SQ entry writing and doorbell ringing
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Controllers can perform optional subsystem resets as introduced in NVMe
1.1. This patch adds an IOCTL to trigger the subsystem reset by writing
"NVMe" to the NSSR register.
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Pull first round of SCSI updates from James Bottomley:
"This includes one new driver: cxlflash plus the usual grab bag of
updates for the major drivers: qla2xxx, ipr, storvsc, pm80xx, hptiop,
plus a few assorted fixes.
There's another tranch coming, but I want to incubate it another few
days in the checkers, plus it includes a mpt2sas separated lifetime
fix, which Avago won't get done testing until Friday"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (85 commits)
aic94xx: set an error code on failure
storvsc: Set the error code correctly in failure conditions
storvsc: Allow write_same when host is windows 10
storvsc: use storage protocol version to determine storage capabilities
storvsc: use correct defaults for values determined by protocol negotiation
storvsc: Untangle the storage protocol negotiation from the vmbus protocol negotiation.
storvsc: Use a single value to track protocol versions
storvsc: Rather than look for sets of specific protocol versions, make decisions based on ranges.
cxlflash: Remove unused variable from queuecommand
cxlflash: shift wrapping bug in afu_link_reset()
cxlflash: off by one bug in cxlflash_show_port_status()
cxlflash: Virtual LUN support
cxlflash: Superpipe support
cxlflash: Base error recovery support
qla2xxx: Update driver version to 8.07.00.26-k
qla2xxx: Add pci device id 0x2261.
qla2xxx: Fix missing device login retries.
qla2xxx: do not clear slot in outstanding cmd array
qla2xxx: Remove decrement of sp reference count in abort handler.
qla2xxx: Add support to show MPI and PEP FW version for ISP27xx.
...
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Add support for physical LUN segmentation (virtual LUNs) to device
driver supporting the IBM CXL Flash adapter. This patch allows user
space applications to virtually segment a physical LUN into N virtual
LUNs, taking advantage of the translation features provided by this
adapter.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Add superpipe supporting infrastructure to device driver for the IBM CXL
Flash adapter. This patch allows userspace applications to take advantage
of the accelerated I/O features that this adapter provides and bypass the
traditional filesystem stack.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Main perf kernel side changes:
- uprobes updates/fixes. (Oleg Nesterov)
- Add PERF_RECORD_SWITCH to indicate context switches and use it in
tooling. (Adrian Hunter)
- Support BPF programs attached to uprobes and first steps for BPF
tooling support. (Wang Nan)
- x86 generic x86 MSR-to-perf PMU driver. (Andy Lutomirski)
- x86 Intel PT, LBR and BTS updates. (Alexander Shishkin)
- x86 Intel Skylake support. (Andi Kleen)
- x86 Intel Knights Landing (KNL) RAPL support. (Dasaratharaman
Chandramouli)
- x86 Intel Broadwell-DE uncore support. (Kan Liang)
- x86 hw breakpoints robustization (Andy Lutomirski)
Main perf tooling side changes:
- Support Intel PT in several tools, enabling the use of the
processor trace feature introduced in Intel Broadwell processors:
(Adrian Hunter)
# dmesg | grep Performance
# [0.188477] Performance Events: PEBS fmt2+, 16-deep LBR, Broadwell events, full-width counters, Intel PMU driver.
# perf record -e intel_pt//u -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.216 MB perf.data ]
# perf script # then navigate in the tool output to some area, like this one:
184 1030 dl_main (/usr/lib64/ld-2.17.so) => 7f21ba661440 dl_main (/usr/lib64/ld-2.17.so)
185 1457 dl_main (/usr/lib64/ld-2.17.so) => 7f21ba669f10 _dl_new_object (/usr/lib64/ld-2.17.so)
186 9f37 _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba677b90 strlen (/usr/lib64/ld-2.17.so)
187 7ba3 strlen (/usr/lib64/ld-2.17.so) => 7f21ba677c75 strlen (/usr/lib64/ld-2.17.so)
188 7c78 strlen (/usr/lib64/ld-2.17.so) => 7f21ba669f3c _dl_new_object (/usr/lib64/ld-2.17.so)
189 9f8a _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba65fab0 calloc@plt (/usr/lib64/ld-2.17.so)
190 fab0 calloc@plt (/usr/lib64/ld-2.17.so) => 7f21ba675e70 calloc (/usr/lib64/ld-2.17.so)
191 5e87 calloc (/usr/lib64/ld-2.17.so) => 7f21ba65fa90 malloc@plt (/usr/lib64/ld-2.17.so)
192 fa90 malloc@plt (/usr/lib64/ld-2.17.so) => 7f21ba675e60 malloc (/usr/lib64/ld-2.17.so)
193 5e68 malloc (/usr/lib64/ld-2.17.so) => 7f21ba65fa80 __libc_memalign@plt (/usr/lib64/ld-2.17.so)
194 fa80 __libc_memalign@plt (/usr/lib64/ld-2.17.so) => 7f21ba675d50 __libc_memalign (/usr/lib64/ld-2.17.so)
195 5d63 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675e20 __libc_memalign (/usr/lib64/ld-2.17.so)
196 5e40 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675d73 __libc_memalign (/usr/lib64/ld-2.17.so)
197 5d97 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675e18 __libc_memalign (/usr/lib64/ld-2.17.so)
198 5e1e __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba675df9 __libc_memalign (/usr/lib64/ld-2.17.so)
199 5e10 __libc_memalign (/usr/lib64/ld-2.17.so) => 7f21ba669f8f _dl_new_object (/usr/lib64/ld-2.17.so)
200 9fc2 _dl_new_object (/usr/lib64/ld-2.17.so) => 7f21ba678e70 memcpy (/usr/lib64/ld-2.17.so)
201 8e8c memcpy (/usr/lib64/ld-2.17.so) => 7f21ba678ea0 memcpy (/usr/lib64/ld-2.17.so)
- Add support for using several Intel PT features (CYC, MTC packets),
the relevant documentation was updated in:
tools/perf/Documentation/intel-pt.txt
briefly describing those packets, its purposes, how to configure
them in the event config terms and relevant external documentation
for further reading. (Adrian Hunter)
- Introduce support for probing at an absolute address, for user and
kernel 'perf probe's, useful when one have the symbol maps on a
developer machine but not on an embedded system. (Wang Nan)
- Add Intel BTS support, with a call-graph script to show it and PT
in use in a GUI using 'perf script' python scripting with
postgresql and Qt. (Adrian Hunter)
- Allow selecting the type of callchains per event, including
disabling callchains in all but one entry in an event list, to save
space, and also to ask for the callchains collected in one event to
be used in other events. (Kan Liang)
- Beautify more syscall arguments in 'perf trace': (Arnaldo Carvalho
de Melo)
* A bunch more translate file/pathnames from pointers to strings.
* Convert numbers to strings for the 'keyctl' syscall 'option'
arg.
* Add missing 'clockid' entries.
- Introduce 'srcfile' sort key: (Andi Kleen)
# perf record -F 10000 usleep 1
# perf report --stdio --dsos '[kernel.vmlinux]' -s srcfile
<SNIP>
# Overhead Source File
26.49% copy_page_64.S
5.49% signal.c
0.51% msr.h
#
It can be combined with other fields, for instance, experiment with
'-s srcfile,symbol'.
There are some oddities in some distros and with some specific
DSOs, being investigated, so your mileage may vary.
- Support per-event 'freq' term: (Namhyung Kim)
$ perf record -e 'cpu/instructions,freq=1234/',cycles -c 1000 sleep 1
$ perf evlist -F
cpu/instructions,freq=1234/: sample_freq=1234
cycles: sample_period=1000
$
- Deref sys_enter pointer args with contents from probe:vfs_getname,
showing pathnames instead of pointers in many syscalls in 'perf
trace'. (Arnaldo Carvalho de Melo)
- Stop collecting /proc/kallsyms in perf.data files, saving about
4.5MB on a typical x86-64 system, use the the symbol resolution
routines used in all the other tools (report, top, etc) now that we
can ask libtraceevent to use perf's symbol resolution code.
(Arnaldo Carvalho de Melo)
- Allow filtering out of perf's PID via 'perf record --exclude-perf'.
(Wang Nan)
- 'perf trace' now supports syscall groups, like strace, i.e:
$ trace -e file touch file
Will expand 'file' into multiple, file related, syscalls. More
work needed to add extra groups for other syscall groups, and also
to complement what was added for the 'file' group, included as a
proof of concept. (Arnaldo Carvalho de Melo)
- Add lock_pi stresser to 'perf bench futex', to test the kernel code
related to FUTEX_(UN)LOCK_PI. (Davidlohr Bueso)
- Let user have timestamps with per-thread recording in 'perf record'
(Adrian Hunter)
- ... and tons of other changes, see the shortlog and the Git log for
details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (240 commits)
perf evlist: Add backpointer for perf_env to evlist
perf tools: Rename perf_session_env to perf_env
perf tools: Do not change lib/api/fs/debugfs directly
perf tools: Add tracing_path and remove unneeded functions
perf buildid: Introduce sysfs/filename__sprintf_build_id
perf evsel: Add a backpointer to the evlist a evsel is in
perf trace: Add header with copyright and background info
perf scripts python: Add new compaction-times script
perf stat: Get correct cpu id for print_aggr
tools lib traceeveent: Allow for negative numbers in print format
perf script: Add --[no-]-demangle/--[no-]-demangle-kernel
tracing/uprobes: Do not print '0x (null)' when offset is 0
perf probe: Support probing at absolute address
perf probe: Fix error reported when offset without function
perf probe: Fix list result when address is zero
perf probe: Fix list result when symbol can't be found
tools build: Allow duplicate objects in the object list
perf tools: Remove export.h from MANIFEST
perf probe: Prevent segfault when reading probe point with absolute address
perf tools: Update Intel PT documentation
...
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more changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Intel Skylake supports reporting the time in cycles a branch in the LBR
took, to give a rough indication of the basic block performance.
Export the cycle information in the branch_info structure.
This can be done by just reusing some currently zero padding.
This is just the generic header change. The architecture
still needs to fill it in.
There's no attempt to convert to real time, as we really
want cycles here.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: eranian@google.com
Link: http://lkml.kernel.org/r/1431285767-27027-5-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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There are already two events for context switches, namely the tracepoint
sched:sched_switch and the software event context_switches.
Unfortunately neither are suitable for use by non-privileged users for
the purpose of synchronizing hardware trace data (e.g. Intel PT) to the
context switch.
Tracepoints are no good at all for non-privileged users because they
need either CAP_SYS_ADMIN or /proc/sys/kernel/perf_event_paranoid <= -1.
On the other hand, kernel software events need either CAP_SYS_ADMIN or
/proc/sys/kernel/perf_event_paranoid <= 1.
Now many distributions do default perf_event_paranoid to 1 making
context_switches a contender, except it has another problem (which is
also shared with sched:sched_switch) which is that it happens before
perf schedules events out instead of after perf schedules events in.
Whereas a privileged user can see all the events anyway, a
non-privileged user only sees events for their own processes, in other
words they see when their process was scheduled out not when it was
scheduled in. That presents two problems to use the event:
1. the information comes too late, so tools have to look ahead in the
event stream to find out what the current state is
2. if they are unlucky tracing might have stopped before the
context-switches event is recorded.
This new PERF_RECORD_SWITCH event does not have those problems
and it also has a couple of other small advantages.
It is easier to use because it is an auxiliary event (like mmap, comm
and task events) which can be enabled by setting a single bit. It is
smaller than sched:sched_switch and easier to parse.
To make the event useful for privileged users also, if the
context is cpu-wide then the event record will be
PERF_RECORD_SWITCH_CPU_WIDE which is the same as
PERF_RECORD_SWITCH except it also provides the next or
previous pid/tid.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1437471846-26995-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here's the big USB and PHY patchset for 4.3-rc1.
As usual, the majority of the changes are in the USB gadget portion of
the tree, lots of little changes all over the place for bugs and new
hardware. Other than that, the normal mix of new hardware support and
bugfixes.
All have been in linux-next with no reported issues"
* tag 'usb-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (261 commits)
USB: qcserial: add HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module
USB: ftdi_sio: Added custom PID for CustomWare products
USB: usb_wwan: silence read errors on disconnect
USB: option: silence interrupt errors
USB: symbolserial: Correct transferred data size
USB: symbolserial: Use usb_get_serial_port_data
usb: misc: usbtest: format max packet size for iso transfer
usb: host: ehci-sys: delete useless bus_to_hcd conversion
Revert "usb: interface authorization: Declare authorized attribute"
Revert "usb: interface authorization: Introduces the default interface authorization"
Revert "usb: interface authorization: Control interface probing and claiming"
Revert "usb: interface authorization: Introduces the USB interface authorization"
Revert "usb: interface authorization: SysFS part of USB interface authorization"
Revert "usb: interface authorization: Documentation part"
Revert "usb: interface authorization: Use a flag for the default device authorization"
usb: core: hub: Removed some warnings generated by checkpatch.pl
USB: host: ohci-at91: merge loops in ohci_hcd_at91_drv_probe
USB: host: ohci-at91: merge ohci_at91_of_init in ohci_hcd_at91_drv_probe
USB: host: ohci-at91: depend on OF
USB: host: ohci-at91: move at91_usbh_data definition in c file
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v4.3 merge window
New support for Allwinne SoC on the MUSB driver has been added to the list of
glue layers. MUSB also got support for building all DMA engines in one binary;
this will be great for distros.
DWC3 now has no trace of dev_dbg()/dev_vdbg() usage. We will rely solely on
tracing to debug DWC3. There was also a fix for memory corruption with EP0 when
maxpacket size transfers are > 512 bytes.
Robert's EP capabilities flags is making EP selection a lot simpler. UDCs are
now required to set these flags up when adding endpoints to the framework.
Other than these, we have the usual set of miscelaneous cleanups and minor
fixes.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Add USB_OTG_ADP definition for usb_otg_descriptor.bmAttributes.
Signed-off-by: Macpaul Lin <macpaul@gmail.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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OTG 2.0 introduces bcdOTG in otg descriptor to identify the OTG and EH
supplement release number with which the OTG device is compliant, this
patch adds structure usb_otg20_descriptor for OTG 2.0 and above.
Signed-off-by: Macpaul Lin <macpaul@gmail.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the big tty/serial driver update for 4.3-rc1.
Not many major things, a number of driver updates and changes, and the
8250 driver got split up a bit to make it easier to work with by
moving some functions to a new file. Full details are in the
shortlog.
All have been in linux-next with no reported issues"
* tag 'tty-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (90 commits)
serial: imx: save and restore context in the suspend path
serial: imx: allow waking up on RTSD
serial: imx: introduce serial_imx_enable_wakeup()
serial: imx: remove unbalanced clk_prepare
serial: 8250: move rx_running out of the bitfield
tty: serial: 8250_omap: do not use RX DMA if pause is not supported
serial:8250_dw: do not alter CTS and DCTS since AFE is enabled
tty: serial: men_z135_uart.c: Don't initialize port->lock
tty: serial: men_z135_uart.c: Fix race between IRQ and set_termios()
serial: 8250: bind to ALi Fast Infrared Controller (ALI5123)
serial: 8250: don't bind to SMSC IrCC IR port
serial: mxs-auart: fix baud rate range
serial: mxs-auart: keep the AUART unit in reset state when not in use
serial: mxs-auart: use a function name to reflect what it really does
serial: 8250_pci: fix mode after S3/S4 resume for F81504/508/512
sc16is7xx: constify devtype
sc16is7xx: support multiple devices
sc16is7xx: save and use per-chip line number
uart: pl011: Add support to ZTE ZX296702 uart
uart: pl011: Improve LCRH register access decision
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Other serial driver work wants to build on patches now in 4.2-rc4 so
merge the branch so this can properly happen.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We use __u8 in linux/gsmmux.h, so include linux/types.h to have that
defined.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver patches from Greg KH:
"Here's the "big" char/misc driver update for 4.3-rc1.
Not much really interesting here, just a number of little changes all
over the place, and some nice consolidation of the nvmem drivers to a
common framework. As usual, the mei drivers stand out as the largest
"churn" to handle new devices and features in their hardware.
All have been in linux-next for a while with no issues"
* tag 'char-misc-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits)
auxdisplay: ks0108: initialize local parport variable
extcon: palmas: Fix build break due to devm_gpiod_get_optional API change
extcon: palmas: Support GPIO based USB ID detection
extcon: Fix signedness bugs about break error handling
extcon: Drop owner assignment from i2c_driver
extcon: arizona: Simplify pdata symantics for micd_dbtime
extcon: arizona: Declare 3-pole jack if we detect open circuit on mic
extcon: Add exception handling to prevent the NULL pointer access
extcon: arizona: Ensure variables are set for headphone detection
extcon: arizona: Use gpiod inteface to handle micd_pol_gpio gpio
extcon: arizona: Add basic microphone detection DT/ACPI bindings
extcon: arizona: Update to use the new device properties API
extcon: palmas: Remove the mutually_exclusive array
extcon: Remove optional print_state() function pointer of struct extcon_dev
extcon: Remove duplicate header file in extcon.h
extcon: max77843: Clear IRQ bits state before request IRQ
toshiba laptop: replace ioremap_cache with ioremap
misc: eeprom: max6875: clean up max6875_read()
misc: eeprom: clean up eeprom_read()
misc: eeprom: 93xx46: clean up eeprom_93xx46_bin_read/write
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We want the fixes in Linus's tree in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add ioctl IOCTL_MEI_NOTIFY_SET for enabling and disabling
async event notification.
Add ioctl IOCTL_MEI_NOTIFY_GET for receiving and acking
an event notification.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull kvm updates from Paolo Bonzini:
"A very small release for x86 and s390 KVM.
- s390: timekeeping changes, cleanups and fixes
- x86: support for Hyper-V MSRs to report crashes, and a bunch of
cleanups.
One interesting feature that was planned for 4.3 (emulating the local
APIC in kernel while keeping the IOAPIC and 8254 in userspace) had to
be delayed because Intel complained about my reading of the manual"
* tag 'kvm-4.3-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (42 commits)
x86/kvm: Rename VMX's segment access rights defines
KVM: x86/vPMU: Fix unnecessary signed extension for AMD PERFCTRn
kvm: x86: Fix error handling in the function kvm_lapic_sync_from_vapic
KVM: s390: Fix assumption that kvm_set_irq_routing is always run successfully
KVM: VMX: drop ept misconfig check
KVM: MMU: fully check zero bits for sptes
KVM: MMU: introduce is_shadow_zero_bits_set()
KVM: MMU: introduce the framework to check zero bits on sptes
KVM: MMU: split reset_rsvds_bits_mask_ept
KVM: MMU: split reset_rsvds_bits_mask
KVM: MMU: introduce rsvd_bits_validate
KVM: MMU: move FNAME(is_rsvd_bits_set) to mmu.c
KVM: MMU: fix validation of mmio page fault
KVM: MTRR: Use default type for non-MTRR-covered gfn before WARN_ON
KVM: s390: host STP toleration for VMs
KVM: x86: clean/fix memory barriers in irqchip_in_kernel
KVM: document memory barriers for kvm->vcpus/kvm->online_vcpus
KVM: x86: remove unnecessary memory barriers for shared MSRs
KVM: move code related to KVM_SET_BOOT_CPU_ID to x86
KVM: s390: log capability enablement and vm attribute changes
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This patch adds names for missing irq types to the trace events.
In order to identify adapter irqs, the define is moved from
interrupt.c to the other basic irq defines in uapi/linux/kvm.h.
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
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Sending of notification is done by exiting vcpu to user space
if KVM_REQ_HV_CRASH is enabled for vcpu. At exit to user space
the kvm_run structure contains system_event with type
KVM_SYSTEM_EVENT_CRASH to notify about guest crash occurred.
Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Peter Hornyack <peterhornyack@google.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Gleb Natapov <gleb@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a small collecton of sound fix patches.
The most significant one is the disablement of newly introduced
topology API. Its ABI couldn't be stabilized enough, so we decided to
delay for 4.3 in the end. Other than that, all oneliner fixes: a
USB-audio runtime PM fix and a couple of HD-audio quirks"
* tag 'sound-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Add dock support for Thinkpad W541 (17aa:2211)
ALSA: usb-audio: Fix runtime PM unbalance
ASoC: topology: Disable use from userspace
ASoC: topology: Add Kconfig option for topology
ALSA: hda - Fix the white noise on Dell laptop
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Disable topology support for v4.2
The topology code merged in the v4.2 merge window introduced a new ABI
which was believed to be suitable for use but subsequently additional
work by the developers of this feature have revealed some problems that
need to be addressed. In order to allow this to be done without having
to support the initial ABI add Kconfig to disable the build and also add
some #error statements to the UAPI header so users can't use them.
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Since the topology API is still in sufficient flux for changes to be
identified disable the use of the userspace ABI by adding #error
statements to the code, ensuring that nobody relies on the headers as
currently defined. It is expected that this change will be reverted for
v4.3.
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The only bulk changes in this request is ABI updates for ASoC topology
API. It's a new API that was introduced in 4.2, and we'd like to
avoid ABI change after the release, so it's taken now. As there is no
real in-tree user for this API, it should be fairly safe.
Other than that, the usual small fixes are found in various drivers:
ASoC cs4265, rt5645, intel-sst, firewire, oxygen and HD-audio"
* tag 'sound-4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: topology: Add private data type and bump ABI version to 3
ASoC: topology: Add ops support to byte controls UAPI
ASoC: topology: Update TLV support so we can support more TLV types
ASoC: topology: add private data to manifest
ASoC: topology: Add subsequence in topology
ALSA: hda - one Dell machine needs the headphone white noise fixup
ALSA: fireworks/firewire-lib: add support for recent firmware quirk
Revert "ALSA: fireworks: add support for AudioFire2 quirk"
ASoC: topology: fix typo in soc_tplg_kcontrol_bind_io()
ALSA: HDA: Dont check return for snd_hdac_chip_readl
ALSA: HDA: Fix stream assignment for host in decoupled mode
ASoC: rt5645: Fix lost pin setting for DMIC1
ALSA: oxygen: Fix logical-not-parentheses warning
ASoC: Intel: sst_byt: fix initialize 'NULL device *' issue
ASoC: Intel: haswell: fix initialize 'NULL device *' issue
ASoC: cs4265: Fix setting dai format for Left/Right Justified
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Add ID for standalone private data object types and bump ABI version to
3 in order to userpsace features.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add UAPI support for setting byte control ops. Rename the ops structure
to be more generic so it can be sued by other objects too.
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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