One important fix for RISC-V:
- Redirect any incoming syscall with an ID less than -1 to
sys_ni_syscall, rather than allowing them to fall through into the
syscall handler.
and two minor build fixes:
- Export __asm_copy_{from,to}_user() from where they are defined.
This fixes a build error triggered by some randconfigs.
- Export flush_icache_all(). I'd resisted this before, since
historically we didn't want modules to be able to flush the I$
directly; but apparently everyone else is doing it now.
-----BEGIN PGP SIGNATURE-----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=y3/O
-----END PGP SIGNATURE-----
Merge tag 'riscv/for-v5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
"One important fix for RISC-V:
- Redirect any incoming syscall with an ID less than -1 to
sys_ni_syscall, rather than allowing them to fall through into the
syscall handler.
and two minor build fixes:
- Export __asm_copy_{from,to}_user() from where they are defined.
This fixes a build error triggered by some randconfigs.
- Export flush_icache_all(). I'd resisted this before, since
historically we didn't want modules to be able to flush the I$
directly; but apparently everyone else is doing it now"
* tag 'riscv/for-v5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: export flush_icache_all to modules
riscv: reject invalid syscalls below -1
riscv: fix compile failure with EXPORT_SYMBOL() & !MMU
-----BEGIN PGP SIGNATURE-----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=AIbz
-----END PGP SIGNATURE-----
Merge tag 'locks-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull /proc/locks formatting fix from Jeff Layton:
"This is a trivial fix for a _very_ long standing bug in /proc/locks
formatting. Ordinarily, I'd wait for the merge window for something
like this, but it is making it difficult to validate some overlayfs
fixes.
I've also gone ahead and marked this for stable"
* tag 'locks-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
locks: print unsigned ino in /proc/locks
-----BEGIN PGP SIGNATURE-----
iQGzBAABCAAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAl4IM0YACgkQiiy9cAdy
T1H17gwAhs0ThN18BmSGJ0ftl4Va0rpcELMp3ZR7cy9yA5JpgI1/ikd7p+VKxTbx
bk3WP9YL5aTcoo6icNZZpgaQmgmqaNpYT5W8cezOyp5Lp+1sxD/CfH4Wpdnssmn1
S42+XpEtEg+Jw6Sg3wadyWbwmkOjJaDm8mZ266T3gaGjkOKHHEvzVi5YN8iWwW3+
bkvByKOzCWUigGQIRHzc5Ubbpp652sz07xAKuja5irz29BLobkGUtfD0uXyj7o4g
dajCzJR8j99bdpeMX2igr28Z002CiZpJRrafdjvoOB9nhoJliIr/PLfdeLZtQUTc
vHvKH6URVnFOFxb21MdfKKy7NKH6KtyZyJdtg95SuOLFr0Myfl9i9EjJ3suPONnD
VUb2MDMVpZ2wyJDHZbXWG84XQoW8hJEcADEkzzBwVIMcvyVMr6gOh107WZTlWmgM
/n+78mU95u9ueA/RCVFXC040J5eEGTO0R/uno4oSMLEBCLdSwm5l/vU38n7FRmP2
I5JEsee4
=cuQx
-----END PGP SIGNATURE-----
Merge tag '5.5-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"One performance fix for large directory searches, and one minor style
cleanup noticed by Clang"
* tag '5.5-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Optimize readdir on reparse points
cifs: Adjust indentation in smb2_open_file
An ino is unsigned, so display it as such in /proc/locks.
Cc: stable@vger.kernel.org
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Vladimir Oltean says:
====================
The DSA TX timestamping situation
This series is the moral v2 of "[PATCH net] net: dsa: sja1105: Fix
double delivery of TX timestamps to socket error queue" [0] which did
not manage to convince public opinion (actually it didn't convince me
neither).
This fixes PTP timestamping on one particular board, where the DSA
switch is sja1105 and the master is gianfar. Unfortunately there is no
way to make the fix more general without committing logical
inaccuracies: the SKBTX_IN_PROGRESS flag does serve a purpose, even if
the sja1105 driver is not using it now: it prevents delivering a SW
timestamp to the app socket when the HW timestamp will be provided. So
not setting this flag (the approach from v1) might create avoidable
complications in the future (not to mention that there isn't any
satisfactory explanation on why that would be the correct solution).
So the goal of this change set is to create a more strict framework for
DSA master devices when attached to PTP switches, and to fix the first
master driver that is overstepping its duties and is delivering
unsolicited TX timestamps.
[0]: https://www.spinics.net/lists/netdev/msg619699.html
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
It is possible to kill PTP on a DSA switch completely and absolutely,
until a reboot, with a simple command:
tcpdump -i eth2 -j adapter_unsynced
where eth2 is the switch's DSA master.
Why? Well, in short, the PTP API in place today is a bit rudimentary and
relies on applications to retrieve the TX timestamps by polling the
error queue and looking at the cmsg structure. But there is no timestamp
identification of any sorts (except whether it's HW or SW), you don't
know how many more timestamps are there to come, which one is this one,
from whom it is, etc. In other words, the SO_TIMESTAMPING API is
fundamentally limited in that you can get a single HW timestamp from the
stack.
And the "-j adapter_unsynced" flag of tcpdump enables hardware
timestamping.
So let's imagine what happens when the DSA master decides it wants to
deliver TX timestamps to the skb's socket too:
- The timestamp that the user space sees is taken by the DSA master.
Whereas the RX timestamp will eventually be overwritten by the DSA
switch. So the RX and TX timestamps will be in different time bases
(aka garbage).
- The user space applications have no way to deal with the second (real)
TX timestamp finally delivered by the DSA switch, or even to know to
wait for it.
Take ptp4l from the linuxptp project, for example. This is its behavior
after running tcpdump, before the patch:
ptp4l[172]: [6469.594] Unexpected data on socket err queue:
ptp4l[172]: [6469.693] rms 8 max 16 freq -21257 +/- 11 delay 748 +/- 0
ptp4l[172]: [6469.711] Unexpected data on socket err queue:
ptp4l[172]: 0020 00 00 00 1f 7b ff fe 63 02 48 00 03 aa 05 00 fd
ptp4l[172]: 0030 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: [6469.721] Unexpected data on socket err queue:
ptp4l[172]: 0000 01 80 c2 00 00 0e 00 1f 7b 63 02 48 88 f7 10 02
ptp4l[172]: 0010 00 2c 00 00 02 00 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: 0020 00 00 00 1f 7b ff fe 63 02 48 00 01 c6 b1 00 fd
ptp4l[172]: 0030 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: [6469.838] Unexpected data on socket err queue:
ptp4l[172]: 0000 01 80 c2 00 00 0e 00 1f 7b 63 02 48 88 f7 10 02
ptp4l[172]: 0010 00 2c 00 00 02 00 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: 0020 00 00 00 1f 7b ff fe 63 02 48 00 03 aa 06 00 fd
ptp4l[172]: 0030 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: [6469.848] Unexpected data on socket err queue:
ptp4l[172]: 0000 01 80 c2 00 00 0e 00 1f 7b 63 02 48 88 f7 13 02
ptp4l[172]: 0010 00 36 00 00 02 00 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: 0020 00 00 00 1f 7b ff fe 63 02 48 00 04 1a 45 05 7f
ptp4l[172]: 0030 00 00 5e 05 41 32 27 c2 1a 68 00 04 9f ff fe 05
ptp4l[172]: 0040 de 06 00 01
ptp4l[172]: [6469.855] Unexpected data on socket err queue:
ptp4l[172]: 0000 01 80 c2 00 00 0e 00 1f 7b 63 02 48 88 f7 10 02
ptp4l[172]: 0010 00 2c 00 00 02 00 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: 0020 00 00 00 1f 7b ff fe 63 02 48 00 01 c6 b2 00 fd
ptp4l[172]: 0030 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: [6469.974] Unexpected data on socket err queue:
ptp4l[172]: 0000 01 80 c2 00 00 0e 00 1f 7b 63 02 48 88 f7 10 02
ptp4l[172]: 0010 00 2c 00 00 02 00 00 00 00 00 00 00 00 00 00 00
ptp4l[172]: 0020 00 00 00 1f 7b ff fe 63 02 48 00 03 aa 07 00 fd
ptp4l[172]: 0030 00 00 00 00 00 00 00 00 00 00
The ptp4l program itself is heavily patched to show this (more details
here [0]). Otherwise, by default it just hangs.
On the other hand, with the DSA patch to disallow HW timestamping
applied:
tcpdump -i eth2 -j adapter_unsynced
tcpdump: SIOCSHWTSTAMP failed: Device or resource busy
So it is a fact of life that PTP timestamping on the DSA master is
incompatible with timestamping on the switch MAC, at least with the
current API. And if the switch supports PTP, taking the timestamps from
the switch MAC is highly preferable anyway, due to the fact that those
don't contain the queuing latencies of the switch. So just disallow PTP
on the DSA master if there is any PTP-capable switch attached.
[0]: https://sourceforge.net/p/linuxptp/mailman/message/36880648/
Fixes: 0336369d3a ("net: dsa: forward hardware timestamping ioctls to switch driver")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver wrongly assumes that it is the only entity that can set the
SKBTX_IN_PROGRESS bit of the current skb. Therefore, in the
gfar_clean_tx_ring function, where the TX timestamp is collected if
necessary, the aforementioned bit is used to discriminate whether or not
the TX timestamp should be delivered to the socket's error queue.
But a stacked driver such as a DSA switch can also set the
SKBTX_IN_PROGRESS bit, which is actually exactly what it should do in
order to denote that the hardware timestamping process is undergoing.
Therefore, gianfar would misinterpret the "in progress" bit as being its
own, and deliver a second skb clone in the socket's error queue,
completely throwing off a PTP process which is not expecting to receive
it, _even though_ TX timestamping is not enabled for gianfar.
There have been discussions [0] as to whether non-MAC drivers need or
not to set SKBTX_IN_PROGRESS at all (whose purpose is to avoid sending 2
timestamps, a sw and a hw one, to applications which only expect one).
But as of this patch, there are at least 2 PTP drivers that would break
in conjunction with gianfar: the sja1105 DSA switch and the felix
switch, by way of its ocelot core driver.
So regardless of that conclusion, fix the gianfar driver to not do stuff
based on flags set by others and not intended for it.
[0]: https://www.spinics.net/lists/netdev/msg619699.html
Fixes: f0ee7acfcd ("gianfar: Add hardware TX timestamping support")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/wan/fsl_ucc_hdlc.c: In function ucc_hdlc_irq_handler:
drivers/net/wan/fsl_ucc_hdlc.c:643:23:
warning: variable ut_info set but not used [-Wunused-but-set-variable]
drivers/net/wan/fsl_ucc_hdlc.c: In function uhdlc_suspend:
drivers/net/wan/fsl_ucc_hdlc.c:880:23:
warning: variable ut_info set but not used [-Wunused-but-set-variable]
drivers/net/wan/fsl_ucc_hdlc.c: In function uhdlc_resume:
drivers/net/wan/fsl_ucc_hdlc.c:925:6:
warning: variable ret set but not used [-Wunused-but-set-variable]
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is needed by LKDTM (crash dump test module), it calls
flush_icache_range(), which on RISC-V turns into flush_icache_all(). On
other architectures, the actual implementation is exported, so follow
that precedence and export it here too.
Fixes build of CONFIG_LKDTM that fails with:
ERROR: "flush_icache_all" [drivers/misc/lkdtm/lkdtm.ko] undefined!
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Running "stress-ng --enosys 4 -t 20 -v" showed a large number of kernel oops
with "Unable to handle kernel paging request at virtual address" message. This
happens when enosys stressor starts testing random non-valid syscalls.
I forgot to redirect any syscall below -1 to sys_ni_syscall.
With the patch kernel oops messages are gone while running stress-ng enosys
stressor.
Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>
Fixes: 5340627e3f ("riscv: add support for SECCOMP and SECCOMP_FILTER")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
When support for !MMU was added, the declaration of
__asm_copy_to_user() & __asm_copy_from_user() were #ifdefed
out hence their EXPORT_SYMBOL() give an error message like:
.../riscv_ksyms.c:13:15: error: '__asm_copy_to_user' undeclared here
.../riscv_ksyms.c:14:15: error: '__asm_copy_from_user' undeclared here
Since these symbols are not defined with !MMU it's wrong to export them.
Same for __clear_user() (even though this one is also declared in
include/asm-generic/uaccess.h and thus doesn't give an error message).
Fix this by doing the EXPORT_SYMBOL() directly where these symbols
are defined: inside lib/uaccess.S itself.
Fixes: 6bd33e1ece ("riscv: fix compile failure with EXPORT_SYMBOL() & !MMU")
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Four fixes and one spelling update, all in drivers: 2 in lpfc and the
rest in mp3sas, cxgbi and target.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
-----BEGIN PGP SIGNATURE-----
iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXgaIWSYcamFtZXMuYm90
dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishb2SAP45hS5T
owI8lIt+jMBnYG3k/66EleVdqMOcvtm9ewDN2gD/eW1LBz6uPzPn07gLB3V4TTTZ
rI8lfohhWJwRAHjvL8A=
=nxXW
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four fixes and one spelling update, all in drivers: two in lpfc and
the rest in mp3sas, cxgbi and target"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target/iblock: Fix protection error with blocks greater than 512B
scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy()
scsi: lpfc: fix spelling mistakes of asynchronous
scsi: lpfc: fix build failure with DEBUGFS disabled
scsi: mpt3sas: Fix double free in attach error handling
Michal Kubecek says:
====================
ethtool netlink interface, part 1
This is first part of netlink based alternative userspace interface for
ethtool. It aims to address some long known issues with the ioctl
interface, mainly lack of extensibility, raciness, limited error reporting
and absence of notifications. The goal is to allow userspace ethtool
utility to provide all features it currently does but without using the
ioctl interface. However, some features provided by ethtool ioctl API will
be available through other netlink interfaces (rtnetlink, devlink) if it's
more appropriate.
The interface uses generic netlink family "ethtool" and provides multicast
group "monitor" which is used for notifications. Documentation for the
interface is in Documentation/networking/ethtool-netlink.rst file. The
netlink interface is optional, it is built when CONFIG_ETHTOOL_NETLINK
(bool) option is enabled.
There are three types of request messages distinguished by suffix "_GET"
(query for information), "_SET" (modify parameters) and "_ACT" (perform an
action). Kernel reply messages have name with additional suffix "_REPLY"
(e.g. ETHTOOL_MSG_SETTINGS_GET_REPLY). Most "_SET" and "_ACT" message types
do not have matching reply type as only some of them need additional reply
data beyond numeric error code and extack. Kernel also broadcasts
notification messages ("_NTF" suffix) on changes.
Basic concepts:
- make extensions easier not only by allowing new attributes but also by
imposing as few artificial limits as possible, e.g. by using arbitrary
size bit sets for most bitmap attributes or by not using fixed size
strings
- use extack for error reporting and warnings
- send netlink notifications on changes (even if they were done using the
ioctl interface) and actions
- avoid the racy read/modify/write cycle between kernel and userspace by
sending only attributes which userspace wants to change; there is still
a read/modify/write cycle between generic kernel code and ethtool_ops
handler in NIC driver but it is only in kernel and under RTNL lock
- reduce the number of name lists that need to be kept in sync between
kernel and userspace (e.g. recognized link modes)
- where feasible, allow dump requests to query specific information for all
network devices
- as parsing and generating netlink messages is more complicated than
simply copying data structures between userspace API and ethtool_ops
handlers (which most ioctl commands do), split the code into multiple
files in net/ethtool directory; move net/core/ethtool.c also to this
directory and rename it to ioctl.c
Changes between v8 and v9:
- fix ethnl_update_u8()
- fix description of ETHTOOL_A_LINKSTATE_LINK in rst file
- add explanation of verbose vs. compact bitset usage to documentation
- link ethtool-netlink.rst into toctree
Main changes between v7 and v8:
- preliminary patches sent as a separate series (already in net-next)
- split notification related changes out of _SET patches
- drop request specific flags from common header
- use FLAG/flag rather than GFLAG/gflag for global flags (as there are
only global flags now)
- allow device names up to ALTIFNAMSIZ characters
- rename ETHTOOL_A_BITSET_LIST to ETHTOOL_A_BITSET_NOMASK
- rename ETHTOOL_A_BIT{,S}_* to ETHTOOL_A_BITSET_BIT{,S}_*
- use standard bitset helpers for link modes (rather than in-place
conversion)
- use "default" rather than "standard" for unified _GET handlers
- fixed 64-bit big endian bitset code
Main changes between v6 and v7:
- split complex messages into small single purpose ones (drop info and
request masks and one level of nesting)
- separate request information and reply data into two structures
- refactor bitset handling (no simultaneous u32/ulong handling but avoid
kmalloc() except for long bitmaps on 64-bit big endian architectures)
- use only fixed size strings internally (will be replaced by char *
eventually but that will require rewriting also existing ioctl code)
- rework ethnl_update_* helpers to return error code
- rename request flag constants (to ETHTOOL_[GR]FLAG_ prefix)
- convert documentation to rst
Main changes between v5 and v6:
- use ETHTOOL_MSG_ prefix for message types
- replace ETHA_ prefix for netlink attributes by ETHTOOL_A_
- replace ETH_x_IM_y for infomask bits by ETHTOOL_IM_x_y
- split GET reply types from SET requests and notifications
- split kernel and userspace message types into different enums
- remove INFO_GET requests from submitted part
- drop EVENT notifications (use rtnetlink and on-demand string set load)
- reorganize patches to reduce the number of intermitent warnings
- unify request/reply header and its processing
- another nest around strings in a string set for consistency
- more consistent identifier naming
- coding style cleanup
- get rid of some of the helpers
- set bad attribute in extack where applicable
- various bug fixes
- improve documentation and code comments, more kerneldoc comments
- more verbose commit messages
Changes between v4 and v5:
- do not panic on failed initialization, only WARN()
Main changes between RFC v3 and v4:
- use more kerneldoc style comments
- strict attribute policy checking
- use macros for tables of link mode names and parameters
- provide permanent hardware address in rtnetlink
- coding style cleanup
- split too long patches, reorder
- wrap more ETHA_SETTINGS_* attributes in nests
- add also some SET_* implementation into submitted part
Main changes between RFC v2 and RFC v3:
- do not allow building as a module (no netdev notifiers needed)
- drop some obsolete fields
- add permanent hw address, timestamping and private flags support
- rework bitset handling to get rid of variable length arrays
- notify monitor on device renames
- restructure GET_SETTINGS/SET_SETTINGS messages
- split too long patches and submit only first part of the series
Main changes between RFC v1 and RFC v2:
- support dumps for all "get" requests
- provide notifications for changes related to supported request types
- support getting string sets (both global and per device)
- support getting/setting device features
- get rid of family specific header, everything passed as attributes
- split netlink code into multiple files in net/ethtool/ directory
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement LINKSTATE_GET netlink request to get link state information.
At the moment, only link up flag as provided by ETHTOOL_GLINK ioctl command
is returned.
LINKSTATE_GET request can be used with NLM_F_DUMP (without device
identification) to request the information for all devices in current
network namespace providing the data.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Send ETHTOOL_MSG_LINKMODES_NTF notification message whenever device link
settings or advertised modes are modified using ETHTOOL_MSG_LINKMODES_SET
netlink message or ETHTOOL_SLINKSETTINGS or ETHTOOL_SSET ioctl commands.
The notification message has the same format as reply to LINKMODES_GET
request. ETHTOOL_MSG_LINKMODES_SET netlink request only triggers the
notification if there is a change but the ioctl command handlers do not
check if there is an actual change and trigger the notification whenever
the commands are executed.
As all work is done by ethnl_default_notify() handler and callback
functions introduced to handle LINKMODES_GET requests, all that remains is
adding entries for ETHTOOL_MSG_LINKMODES_NTF into ethnl_notify_handlers and
ethnl_default_notify_ops lookup tables and calls to ethtool_notify() where
needed.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement LINKMODES_SET netlink request to set advertised linkmodes and
related attributes as ETHTOOL_SLINKSETTINGS and ETHTOOL_SSET commands do.
The request allows setting autonegotiation flag, speed, duplex and
advertised link modes.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement LINKMODES_GET netlink request to get link modes related
information provided by ETHTOOL_GLINKSETTINGS and ETHTOOL_GSET ioctl
commands.
This request provides supported, advertised and peer advertised link modes,
autonegotiation flag, speed and duplex.
LINKMODES_GET request can be used with NLM_F_DUMP (without device
identification) to request the information for all devices in current
network namespace providing the data.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Send ETHTOOL_MSG_LINKINFO_NTF notification message whenever device link
settings are modified using ETHTOOL_MSG_LINKINFO_SET netlink message or
ETHTOOL_SLINKSETTINGS or ETHTOOL_SSET ioctl commands.
The notification message has the same format as reply to LINKINFO_GET
request. ETHTOOL_MSG_LINKINFO_SET netlink request only triggers the
notification if there is a change but the ioctl command handlers do not
check if there is an actual change and trigger the notification whenever
the commands are executed.
As all work is done by ethnl_default_notify() handler and callback
functions introduced to handle LINKINFO_GET requests, all that remains is
adding entries for ETHTOOL_MSG_LINKINFO_NTF into ethnl_notify_handlers and
ethnl_default_notify_ops lookup tables and calls to ethtool_notify() where
needed.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ethtool netlink notifications have the same format as related GET
replies so that if generic GET handling framework is used to process GET
requests, its callbacks and instance of struct get_request_ops can be
also used to compose corresponding notification message.
Provide function ethnl_std_notify() to be used as notification handler in
ethnl_notify_handlers table.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement LINKINFO_SET netlink request to set link settings queried by
LINKINFO_GET message.
Only physical port, phy MDIO address and MDI(-X) control can be set,
attempt to modify MDI(-X) status and transceiver is rejected.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Implement LINKINFO_GET netlink request to get basic link settings provided
by ETHTOOL_GLINKSETTINGS and ETHTOOL_GSET ioctl commands.
This request provides settings not directly related to autonegotiation and
link mode selection: physical port, phy MDIO address, MDI(-X) status,
MDI(-X) control and transceiver.
LINKINFO_GET request can be used with NLM_F_DUMP (without device
identification) to request the information for all devices in current
network namespace providing the data.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Requests a contents of one or more string sets, i.e. indexed arrays of
strings; this information is provided by ETHTOOL_GSSET_INFO and
ETHTOOL_GSTRINGS commands of ioctl interface. Unlike ioctl interface, all
information can be retrieved with one request and mulitple string sets can
be requested at once.
There are three types of requests:
- no NLM_F_DUMP, no device: get "global" stringsets
- no NLM_F_DUMP, with device: get string sets related to the device
- NLM_F_DUMP, no device: get device related string sets for all devices
Client can request either all string sets of given type (global or device
related) or only specific sets. With ETHTOOL_A_STRSET_COUNTS flag set, only
set sizes (numbers of strings) are returned.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Significant part of GET request processing is common for most request
types but unfortunately it cannot be easily separated from type specific
code as we need to alternate between common actions (parsing common request
header, allocating message and filling netlink/genetlink headers etc.) and
specific actions (querying the device, composing the reply). The processing
also happens in three different situations: "do" request, "dump" request
and notification, each doing things in slightly different way.
The request specific code is implemented in four or five callbacks defined
in an instance of struct get_request_ops:
parse_request() - parse incoming message
prepare_data() - retrieve data from driver or NIC
reply_size() - estimate reply message size
fill_reply() - compose reply message
cleanup_data() - (optional) clean up additional data
Other members of struct get_request_ops describe the data structure holding
information from client request and data used to compose the message. The
default handlers ethnl_default_doit(), ethnl_default_dumpit(),
ethnl_default_start() and ethnl_default_done() can be then used in genl_ops
handler. Notification handler will be introduced in a later patch.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add infrastructure for ethtool netlink notifications. There is only one
multicast group "monitor" which is used to notify userspace about changes
and actions performed. Notification messages (types using suffix _NTF)
share the format with replies to GET requests.
Notifications are supposed to be broadcasted on every configuration change,
whether it is done using the netlink interface or ioctl one. Netlink SET
requests only trigger a notification if some data is actually changed.
To trigger an ethtool notification, both ethtool netlink and external code
use ethtool_notify() helper. This helper requires RTNL to be held and may
sleep. Handlers sending messages for specific notification message types
are registered in ethnl_notify_handlers array. As notifications can be
triggered from other code, ethnl_ok flag is used to prevent an attempt to
send notification before genetlink family is registered.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ethtool netlink code uses common framework for passing arbitrary
length bit sets to allow future extensions. A bitset can be a list (only
one bitmap) or can consist of value and mask pair (used e.g. when client
want to modify only some bits). A bitset can use one of two formats:
verbose (bit by bit) or compact.
Verbose format consists of bitset size (number of bits), list flag and
an array of bit nests, telling which bits are part of the list or which
bits are in the mask and which of them are to be set. In requests, bits
can be identified by index (position) or by name. In replies, kernel
provides both index and name. Verbose format is suitable for "one shot"
applications like standard ethtool command as it avoids the need to
either keep bit names (e.g. link modes) in sync with kernel or having to
add an extra roundtrip for string set request (e.g. for private flags).
Compact format uses one (list) or two (value/mask) arrays of 32-bit
words to store the bitmap(s). It is more suitable for long running
applications (ethtool in monitor mode or network management daemons)
which can retrieve the names once and then pass only compact bitmaps to
save space.
Userspace requests can use either format; ETHTOOL_FLAG_COMPACT_BITSETS
flag in request header tells kernel which format to use in reply.
Notifications always use compact format.
As some code uses arrays of unsigned long for internal representation and
some arrays of u32 (or even a single u32), two sets of parse/compose
helpers are introduced. To avoid code duplication, helpers for unsigned
long arrays are implemented as wrappers around helpers for u32 arrays.
There are two reasons for this choice: (1) u32 arrays are more frequent in
ethtool code and (2) unsigned long array can be always interpreted as an
u32 array on little endian 64-bit and all 32-bit architectures while we
would need special handling for odd number of u32 words in the opposite
direction.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add common request/reply header definition and helpers to parse request
header and fill reply header. Provide ethnl_update_* helpers to update
structure members from request attributes (to be used for *_SET requests).
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Basic genetlink and init infrastructure for the netlink interface, register
genetlink family "ethtool". Add CONFIG_ETHTOOL_NETLINK Kconfig option to
make the build optional. Add initial overall interface description into
Documentation/networking/ethtool-netlink.rst, further patches will add more
detailed information.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
GXBB and newer SoCs use the fixed FCLK_DIV2 (1GHz) clock as input for
the m250_sel clock. Meson8b and Meson8m2 use MPLL2 instead, whose rate
can be adjusted at runtime.
So far we have been running MPLL2 with ~250MHz (and the internal
m250_div with value 1), which worked enough that we could transfer data
with an TX delay of 4ns. Unfortunately there is high packet loss with
an RGMII PHY when transferring data (receiving data works fine though).
Odroid-C1's u-boot is running with a TX delay of only 2ns as well as
the internal m250_div set to 2 - no lost (TX) packets can be observed
with that setting in u-boot.
Manual testing has shown that the TX packet loss goes away when using
the following settings in Linux (the vendor kernel uses the same
settings):
- MPLL2 clock set to ~500MHz
- m250_div set to 2
- TX delay set to 2ns on the MAC side
Update the m250_div divider settings to only accept dividers greater or
equal 2 to fix the TX delay generated by the MAC.
iperf3 results before the change:
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 182 MBytes 153 Mbits/sec 514 sender
[ 5] 0.00-10.00 sec 182 MBytes 152 Mbits/sec receiver
iperf3 results after the change (including an updated TX delay of 2ns):
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-10.00 sec 927 MBytes 778 Mbits/sec 0 sender
[ 5] 0.00-10.01 sec 927 MBytes 777 Mbits/sec receiver
Fixes: 4f6a71b84e ("net: stmmac: dwmac-meson8b: fix internal RGMII clock configuration")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's no skb_pull performed when a mirred action is set at egress of a
mac device, with a target device/action that expects skb->data to point
at the network header.
As a result, either the target device is errornously given an skb with
data pointing to the mac (egress case), or the net stack receives the
skb with data pointing to the mac (ingress case).
E.g:
# tc qdisc add dev eth9 root handle 1: prio
# tc filter add dev eth9 parent 1: prio 9 protocol ip handle 9 basic \
action mirred egress redirect dev tun0
(tun0 is a tun device. result: tun0 errornously gets the eth header
instead of the iph)
Revise the push/pull logic of tcf_mirred_act() to not rely on the
skb_at_tc_ingress() vs tcf_mirred_act_wants_ingress() comparison, as it
does not cover all "pull" cases.
Instead, calculate whether the required action on the target device
requires the data to point at the network header, and compare this to
whether skb->data points to network header - and make the push/pull
adjustments as necessary.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Shmulik Ladkani <sladkani@proofpoint.com>
Tested-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function sctp_sf_eat_sack_6_2 now performs the Verification
Tag validation, Chunk length validation, Bogu check, and also
the detection of out-of-order SACK based on the RFC2960
Section 6.2 at the beginning, and finally performs the further
processing of SACK. The trace_sctp_probe now triggered before
the above necessary validation and check.
this patch is to do the trace_sctp_probe after the chunk sanity
tests, but keep doing trace if the SACK received is out of order,
for the out-of-order SACK is valuable to congestion control
debugging.
v1->v2:
- keep doing SCTP trace if the SACK is out of order as Marcelo's
suggestion.
v2->v3:
- regenerate the patch as v2 generated on top of v1, and add
'net-next' tag to the new one as Marcelo's comments.
Signed-off-by: Kevin Kou <qdkevin.kou@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If packet checker is enabled in the serdes, then Rx counter registers
start working, and no side effects have been detected.
This patch enables packet checker automatically when powering serdes on,
and exposes Rx counter registers via ethtool statistics interface.
Code partially basded by older attempt by Andrew Lunn.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/amazon/ena/ena_netdev.c: In function ena_xdp_xmit_buff:
drivers/net/ethernet/amazon/ena/ena_netdev.c:316:19: warning:
variable rx_ring set but not used [-Wunused-but-set-variable]
commit 548c4940b9 ("net: ena: Implement XDP_TX action")
left behind this unused variable.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to set variable 'mbus' static
since new value always be assigned before use it.
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Passing NULL to ppp_pernet causes a crash via BUG_ON.
Dereferencing net in net_generic() also has the same effect.
This patch removes the redundant BUG_ON check on the same parameter.
Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
====================
tcp_cubic: various fixes
This patch series converts tcp_cubic to usec clock resolution
for Hystart logic.
This makes Hystart more relevant for data-center flows.
Prior to this series, Hystart was not kicking, or was
kicking without good reason, since the 1ms clock was too coarse.
Last patch also fixes an issue with Hystart vs TCP pacing.
v2: removed a last-minute debug chunk from last patch
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
For years we disabled Hystart ACK train detection at Google
because it was fooled by TCP pacing.
ACK train detection uses a simple heuristic, detecting if
we receive ACK past half the RTT, to exit slow start before
hitting the bottleneck and experience massive drops.
But pacing by design might delay packets up to RTT/2,
so we need to tweak the Hystart logic to be aware of this
extra delay.
Tested:
Added a 100 usec delay at receiver.
Before:
nstat -n;for f in {1..10}; do ./super_netperf 1 -H lpaa24 -l -4000000; done;nstat|egrep "Hystart"
9117
7057
9553
8300
7030
6849
9533
10126
6876
8473
TcpExtTCPHystartTrainDetect 10 0.0
TcpExtTCPHystartTrainCwnd 1230 0.0
After :
nstat -n;for f in {1..10}; do ./super_netperf 1 -H lpaa24 -l -4000000; done;nstat|egrep "Hystart"
9845
10103
10866
11096
11936
11487
11773
12188
11066
11894
TcpExtTCPHystartTrainDetect 10 0.0
TcpExtTCPHystartTrainCwnd 6462 0.0
Disabling Hystart ACK Train detection gives similar numbers
echo 2 >/sys/module/tcp_cubic/parameters/hystart_detect
nstat -n;for f in {1..10}; do ./super_netperf 1 -H lpaa24 -l -4000000; done;nstat|egrep "Hystart"
11173
10954
12455
10627
11578
11583
11222
10880
10665
11366
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After switching ca->delay_min to usec resolution, we exit
slow start prematurely for very low RTT flows, setting
snd_ssthresh to 20.
The reason is that delay_min is fed with RTT of small packet
trains. Then as cwnd is increased, TCP sends bigger TSO packets.
LRO/GRO aggregation and/or interrupt mitigation strategies
on receiver tend to inflate RTT samples.
Fix this by adding to delay_min the expected delay of
two TSO packets, given current pacing rate.
Tested:
Sender uses pfifo_fast qdisc
Before :
$ nstat -n;for f in {1..10}; do ./super_netperf 1 -H lpaa24 -l -4000000; done;nstat|egrep "Hystart"
11348
11707
11562
11428
11773
11534
9878
11693
10597
10968
TcpExtTCPHystartTrainDetect 10 0.0
TcpExtTCPHystartTrainCwnd 200 0.0
After :
$ nstat -n;for f in {1..10}; do ./super_netperf 1 -H lpaa24 -l -4000000; done;nstat|egrep "Hystart"
14877
14517
15797
18466
17376
14833
17558
17933
16039
18059
TcpExtTCPHystartTrainDetect 10 0.0
TcpExtTCPHystartTrainCwnd 1670 0.0
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current 1ms clock feeds ca->round_start, ca->delay_min,
ca->last_ack.
This is quite problematic for data-center flows, where delay_min
is way below 1 ms.
This means Hystart Train detection triggers every time jiffies value
is updated, since "((s32)(now - ca->round_start) > ca->delay_min >> 4)"
expression becomes true.
This kind of random behavior can be solved by reusing the existing
usec timestamp that TCP keeps in tp->tcp_mstamp
Note that a followup patch will tweak things a bit, because
during slow start, GRO aggregation on receivers naturally
increases the RTT as TSO packets gradually come to ~64KB size.
To recap, right after this patch CUBIC Hystart train detection
is more aggressive, since short RTT flows might exit slow start at
cwnd = 20, instead of being possibly unbounded.
Following patch will address this problem.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If we initialize ca->curr_rtt to ~0U, we do not need to test
for zero value in hystart_update()
We only read ca->curr_rtt if at least HYSTART_MIN_SAMPLES have
been processed, and thus ca->curr_rtt will have a sane value.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We do not care which bit in ca->found is set.
We avoid accessing hystart and hystart_detect unless really needed,
possibly avoiding one cache line miss.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann says:
====================
pull-request: bpf-next 2019-12-27
The following pull-request contains BPF updates for your *net-next* tree.
We've added 127 non-merge commits during the last 17 day(s) which contain
a total of 110 files changed, 6901 insertions(+), 2721 deletions(-).
There are three merge conflicts. Conflicts and resolution looks as follows:
1) Merge conflict in net/bpf/test_run.c:
There was a tree-wide cleanup c593642c8b ("treewide: Use sizeof_field() macro")
which gets in the way with b590cb5f80 ("bpf: Switch to offsetofend in
BPF_PROG_TEST_RUN"):
<<<<<<< HEAD
if (!range_is_zero(__skb, offsetof(struct __sk_buff, priority) +
sizeof_field(struct __sk_buff, priority),
=======
if (!range_is_zero(__skb, offsetofend(struct __sk_buff, priority),
>>>>>>> 7c8dce4b16
There are a few occasions that look similar to this. Always take the chunk with
offsetofend(). Note that there is one where the fields differ in here:
<<<<<<< HEAD
if (!range_is_zero(__skb, offsetof(struct __sk_buff, tstamp) +
sizeof_field(struct __sk_buff, tstamp),
=======
if (!range_is_zero(__skb, offsetofend(struct __sk_buff, gso_segs),
>>>>>>> 7c8dce4b16
Just take the one with offsetofend() /and/ gso_segs. Latter is correct due to
850a88cc40 ("bpf: Expose __sk_buff wire_len/gso_segs to BPF_PROG_TEST_RUN").
2) Merge conflict in arch/riscv/net/bpf_jit_comp.c:
(I'm keeping Bjorn in Cc here for a double-check in case I got it wrong.)
<<<<<<< HEAD
if (is_13b_check(off, insn))
return -1;
emit(rv_blt(tcc, RV_REG_ZERO, off >> 1), ctx);
=======
emit_branch(BPF_JSLT, RV_REG_T1, RV_REG_ZERO, off, ctx);
>>>>>>> 7c8dce4b16
Result should look like:
emit_branch(BPF_JSLT, tcc, RV_REG_ZERO, off, ctx);
3) Merge conflict in arch/riscv/include/asm/pgtable.h:
<<<<<<< HEAD
=======
#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1)
#define VMALLOC_END (PAGE_OFFSET - 1)
#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE)
#define BPF_JIT_REGION_SIZE (SZ_128M)
#define BPF_JIT_REGION_START (PAGE_OFFSET - BPF_JIT_REGION_SIZE)
#define BPF_JIT_REGION_END (VMALLOC_END)
/*
* Roughly size the vmemmap space to be large enough to fit enough
* struct pages to map half the virtual address space. Then
* position vmemmap directly below the VMALLOC region.
*/
#define VMEMMAP_SHIFT \
(CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT)
#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT)
#define VMEMMAP_END (VMALLOC_START - 1)
#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE)
#define vmemmap ((struct page *)VMEMMAP_START)
>>>>>>> 7c8dce4b16
Only take the BPF_* defines from there and move them higher up in the
same file. Remove the rest from the chunk. The VMALLOC_* etc defines
got moved via 01f52e16b8 ("riscv: define vmemmap before pfn_to_page
calls"). Result:
[...]
#define __S101 PAGE_READ_EXEC
#define __S110 PAGE_SHARED_EXEC
#define __S111 PAGE_SHARED_EXEC
#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1)
#define VMALLOC_END (PAGE_OFFSET - 1)
#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE)
#define BPF_JIT_REGION_SIZE (SZ_128M)
#define BPF_JIT_REGION_START (PAGE_OFFSET - BPF_JIT_REGION_SIZE)
#define BPF_JIT_REGION_END (VMALLOC_END)
/*
* Roughly size the vmemmap space to be large enough to fit enough
* struct pages to map half the virtual address space. Then
* position vmemmap directly below the VMALLOC region.
*/
#define VMEMMAP_SHIFT \
(CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT)
#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT)
#define VMEMMAP_END (VMALLOC_START - 1)
#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE)
[...]
Let me know if there are any other issues.
Anyway, the main changes are:
1) Extend bpftool to produce a struct (aka "skeleton") tailored and specific
to a provided BPF object file. This provides an alternative, simplified API
compared to standard libbpf interaction. Also, add libbpf extern variable
resolution for .kconfig section to import Kconfig data, from Andrii Nakryiko.
2) Add BPF dispatcher for XDP which is a mechanism to avoid indirect calls by
generating a branch funnel as discussed back in bpfconf'19 at LSF/MM. Also,
add various BPF riscv JIT improvements, from Björn Töpel.
3) Extend bpftool to allow matching BPF programs and maps by name,
from Paul Chaignon.
4) Support for replacing cgroup BPF programs attached with BPF_F_ALLOW_MULTI
flag for allowing updates without service interruption, from Andrey Ignatov.
5) Cleanup and simplification of ring access functions for AF_XDP with a
bonus of 0-5% performance improvement, from Magnus Karlsson.
6) Enable BPF JITs for x86-64 and arm64 by default. Also, final version of
audit support for BPF, from Daniel Borkmann and latter with Jiri Olsa.
7) Move and extend test_select_reuseport into BPF program tests under
BPF selftests, from Jakub Sitnicki.
8) Various BPF sample improvements for xdpsock for customizing parameters
to set up and benchmark AF_XDP, from Jay Jayatheerthan.
9) Improve libbpf to provide a ulimit hint on permission denied errors.
Also change XDP sample programs to attach in driver mode by default,
from Toke Høiland-Jørgensen.
10) Extend BPF test infrastructure to allow changing skb mark from tc BPF
programs, from Nikita V. Shirokov.
11) Optimize prologue code sequence in BPF arm32 JIT, from Russell King.
12) Fix xdp_redirect_cpu BPF sample to manually attach to tracepoints after
libbpf conversion, from Jesper Dangaard Brouer.
13) Minor misc improvements from various others.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
i915:
- power management rc6 fix
- framebuffer tracking fix
- display power management ratelimit fix
-----BEGIN PGP SIGNATURE-----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=pliy
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Post-xmas food coma recovery fixes. Only three fixes for i915 since I
expect most people are holidaying.
i915:
- power management rc6 fix
- framebuffer tracking fix
- display power management ratelimit fix"
* tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm:
drm/i915: Hold reference to intel_frontbuffer as we track activity
drm/i915/gt: Ratelimit display power w/a
drm/i915/pmu: Ensure monotonic rc6
This Kselftest update for Linux 5.5-rc4 consists of:
-- rseq build failures fixes related to glibc 2.30 compatibility
from Mathieu Desnoyers
-- Kunit fixes and cleanups from SeongJae Park
-- Fixes to filesystems/epoll, firmware, and livepatch build failures
and skip handling.
-----BEGIN PGP SIGNATURE-----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=ZztB
-----END PGP SIGNATURE-----
Merge tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
- rseq build failures fixes related to glibc 2.30 compatibility from
Mathieu Desnoyers
- Kunit fixes and cleanups from SeongJae Park
- Fixes to filesystems/epoll, firmware, and livepatch build failures
and skip handling.
* tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
rseq/selftests: Clarify rseq_prepare_unload() helper requirements
rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
rseq/selftests: Turn off timeout setting
kunit/kunit_tool_test: Test '--build_dir' option run
kunit: Rename 'kunitconfig' to '.kunitconfig'
kunit: Place 'test.log' under the 'build_dir'
kunit: Create default config in '--build_dir'
kunit: Remove duplicated defconfig creation
docs/kunit/start: Use in-tree 'kunit_defconfig'
selftests: livepatch: Fix it to do root uid check and skip
selftests: firmware: Fix it to do root uid check and skip
selftests: filesystems/epoll: fix build error
Fix compile test of the Tegra devfreq driver (Arnd Bergmann)
and remove redundant Kconfig dependencies from multiple devfreq
drivers (Leonard Crestez).
-----BEGIN PGP SIGNATURE-----
iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAl4F2N4SHHJqd0Byand5
c29ja2kubmV0AAoJEILEb/54YlRx7YcP/3TL0NX9bglMT/tZr9fulDuu1O5DFC2+
HuMqvwh7anx6Cf4YXksTuqGPeyQdxjx5xGnDm/FEKFV34nbBWwLfiRumG0UaaL24
g1kFYQDde79NI0oQ1vD0174Wwl5nutPE7QIyjl2ucrng7UjTaMhWccj7kprW8PMw
s+3EaHLuwU5LfECJ5CwjkhRW9rVugjEurfW7dButvPGsbxL1RTjreoU20IxDAbSm
DGc2qRvTpCIZI2fQQEc/fRttL51kfKpl1GZE2RGD3x9qorb6QGxyIbHnmMnUm7a1
8EHgVH4a5oRst1bnibLbSDCxGSuiTTX9HqgTsMYqdtDS2HuvTFhIpWZDy6QUZYNg
5EWeDRDeGNtI3Ctgh0/vdapiWvf02028VcQUQOZ+IIohzh1WIXBhI1OOvbd51UrJ
CmsQ8xjRIP0GHZfe5S+e0epCt6rLh4MsXNl9xc6UP4LtP7Yg0x3W0FiANe6ZJw2I
FxXKeRdv2DoYdV+vI9+WMXpdOb2A4kzkQ7hsbQ9sJboDSE32xbMcKFHLOgs2rYNd
hpELZwX4lZZfiHvLtUxc8omIFWLac+jnh/UsFJOcGqa2yA2/4ckrjMFMyIvgwRJz
Fo9xyzvWYGwDK/e70jfNbssd5RfmrX6QMI/283b1sYRK6BwRfgmU3oEWDwB35Esc
qv7in/zly5rZ
=EFpO
-----END PGP SIGNATURE-----
Merge tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Fix compile test of the Tegra devfreq driver (Arnd Bergmann) and
remove redundant Kconfig dependencies from multiple devfreq drivers
(Leonard Crestez)"
* tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / devfreq: tegra: Add COMMON_CLK dependency
PM / devfreq: Drop explicit selection of PM_OPP
-----BEGIN PGP SIGNATURE-----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=L2kR
-----END PGP SIGNATURE-----
Merge tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
- Removal of now unused busy wqe list (Hillf)
- Add cond_resched() to io-wq work processing (Hillf)
- And then the series that I hinted at from last week, which removes
the sqe from the io_kiocb and keeps all sqe handling on the prep
side. This guarantees that an opcode can't do the wrong thing and
read the sqe more than once. This is unchanged from last week, no
issues have been observed with this in testing. Hence I really think
we should fold this into 5.5.
* tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block:
io-wq: add cond_resched() to worker thread
io-wq: remove unused busy list from io_sqe
io_uring: pass in 'sqe' to the prep handlers
io_uring: standardize the prep methods
io_uring: read 'count' for IORING_OP_TIMEOUT in prep handler
io_uring: move all prep state for IORING_OP_{SEND,RECV}_MGS to prep handler
io_uring: move all prep state for IORING_OP_CONNECT to prep handler
io_uring: add and use struct io_rw for read/writes
io_uring: use u64_to_user_ptr() consistently
-----BEGIN PGP SIGNATURE-----
iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl4E+S0QHGF4Ym9lQGtl
cm5lbC5kawAKCRD301j7KXHgptfiEAC8w1WnAkB4SkSzcex7TjxRcmBHHAB6rWbb
Myf0GiAj6rvC+8KW91SOgxIF2xTlvgwEcY4v0mIHCy0Lb2SSeEg74X9OmhAGVTNI
WXeHWeV7zDVUU5DePKt/3Mkt3qIalTUzhmxM3erJmgj3LuJQWOXDpW/YGKVwULJG
V7PnEcVrlolZ+WLfEY1NvZ9+gwgp6GkG7vuN7QYCFqpVnLxxtxVA7qx4azNGzt8M
1KFtL8S7yUpAw3z3J/77DDigi//VSLabdyLnBOLQ5KJJpO/Qjr8+5GGWSmAQFQYQ
t6et4DtLqIuJOq3y8kx5aUwLHdLfwWDIGE1AoY+kHToYbGcCTAe7HXLUJMgjwfEe
+nLgtrRD1OhOe5zON1C3MI2tbqBJjdKYabUHCWzUWz1IO8d4JN4bOv1KkquaeFep
te/GjQ/86kvX12uF87lrlcaslJu5TBLnD7vd+pj+1AOdFEjNX+WY0NljZRIWtbHA
2N5V8WhpW08jL4Hr/86oq1uNNc6cfBd5d16JiDbLnxJoulfhQGr0oV8T+lq9s4l8
txJy8oDlhE5CU80a/8UhsZTasfa3Vg37xL71uZtCz7dWEfkq4ZPGKJHoa9DGUd9l
tXa+04bxg+sAwyFH+RWmxulQEdvF4+4H4lEbHah+UuMUukgYo1i86ao+R6DTiVx+
AVsawlrW+Q==
=IO44
-----END PGP SIGNATURE-----
Merge tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block
Pull libata fixes from Jens Axboe:
"Two things in here:
- First half of a series that fixes ahci_brcm, also marked for
stable. The other part of the series is going into 5.6 (Florian)
- sata_nv regression fix that is also marked for stable (Sascha)"
* tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block:
ata: ahci_brcm: Add missing clock management during recovery
ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
ata: ahci_brcm: Fix AHCI resources management
ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
libata: Fix retrieving of active qcs
-----BEGIN PGP SIGNATURE-----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=UOAX
-----END PGP SIGNATURE-----
Merge tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Only thing here are the changes from Arnd from last week, which now
have the appropriate header include to ensure they actually compile if
COMPAT is enabled"
* tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block:
compat_ioctl: block: handle Persistent Reservations
compat_ioctl: block: handle add zone open, close and finish ioctl
compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
pktcdvd: fix regression on 64-bit architectures
- Fix the build for the Xtensa driver.
- Make sure to set up the parent device for mpc8xxx.
- Clarify the look-up error message.
- Fix the usage of the line direction in the mockup device.
- Fix a type warning on the Aspeed driver.
- Remove the pointless __exit annotation on the xgs-iproc which
is causing a compilation problem.
- Fix up emultation of open drain outputs .get_direction()
- Fix the IRQ callbacks on the PCA953xx to use bitops and
work properly.
- Fix the Kconfig on the Tegra driver.
-----BEGIN PGP SIGNATURE-----
iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl4D6rAACgkQQRCzN7AZ
XXNEnQ/9Gb19jq7YEEIh3oGhZoMErlD/+ZIyP82ejggVbhi4aRnGJHeaZSNPFJKK
5mvncpJdgONdGym6MNT4pDVLGRqyHe2FgTAEhjpBBVqS9unnTU9obem6EoY+ur5a
EFt2LjTz9Yntg3mkjFJJwtdozAYSr+8SpAepsxzuUnjFpeUzaEMaTmMxmKsUcPbD
X2KO8rTxPHUAn/9TqfP2ywNQh3tLTU9O2coPS4O7VnWiG+AvqTTnubWrsIktNrB/
On30lEfxjQkzUZtHdSmvNg79BAhd436rcGB686dleiJEmp9MvtvVLxE01Ehf3bZl
IX0tndAxUhnUDOyI6vrW9AdL/S9nG3VM03Z/YPx8e4UHlMSU6OyPqKZOPXTjTIJr
jpuXqz+LqhqeZdAO7HBdQm1yUZhv9W2Hw46hchZJyabDBoQ4UG/y1E7sMe2TlpaK
2xFjagtNpAQbSVMsA1Bzh6z2J1LWo/8J+xuQv28gBpjT9rMTYBRIkIXJKyuWN2tF
QXHW9tejiRY560IhRVVj4ckswvZiizT5ZGQPxwS/Piw9+41ELFRjcONyOqMO6aGl
TxtUqvZauWpVcLMvoRCjweTWBdJDXgJXzFl7vw+3znmgLctrIuLDe+7MuNBZlHI7
+VFteHW/rv/WucepM5BhAgWTM/G08xm8o2/zuS2xKSjQKF71NeM=
=eZNi
-----END PGP SIGNATURE-----
Merge tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"A set of fixes for the v5.5 series:
- Fix the build for the Xtensa driver.
- Make sure to set up the parent device for mpc8xxx.
- Clarify the look-up error message.
- Fix the usage of the line direction in the mockup device.
- Fix a type warning on the Aspeed driver.
- Remove the pointless __exit annotation on the xgs-iproc which is
causing a compilation problem.
- Fix up emultation of open drain outputs .get_direction()
- Fix the IRQ callbacks on the PCA953xx to use bitops and work
properly.
- Fix the Kconfig on the Tegra driver"
* tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: tegra186: Allow building on Tegra194-only configurations
gpio: pca953x: Switch to bitops in IRQ callbacks
gpiolib: fix up emulated open drain outputs
MAINTAINERS: Append missed file to the database
gpio: xgs-iproc: remove __exit annotation for iproc_gpio_remove
gpio: aspeed: avoid return type warning
gpio: mockup: Fix usage of new GPIO_LINE_DIRECTION
gpio: Fix error message on out-of-range GPIO in lookup table
gpio: mpc8xxx: Add platform device to gpiochip->parent
gpio: xtensa: fix driver build
When auto-generated BPF skeleton C code is included from C++ application, it
triggers compilation error due to void * being implicitly casted to whatever
target pointer type. This is supported by C, but not C++. To solve this
problem, add explicit casts, where necessary.
To ensure issues like this are captured going forward, add skeleton usage in
test_cpp test.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191226210253.3132060-1-andriin@fb.com
