There's no point in disabling x2APIC mode when running as a Xen HVM
guest, just enable it when available.
Remove some unneeded wrapping around the detection functions, and
simply provide a xen_x2apic_available helper that's a wrapper around
x2apic_supported.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20220121090146.13697-1-roger.pau@citrix.com
Signed-off-by: Juergen Gross <jgross@suse.com>
There's a cut'n'paste error in the logging for our test for reading register
state back via ptrace, correctly say that we did a read instead of a write.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220124175527.3260234-3-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Currently we unconditionally test the ability to set the vector length
inheritance flag via ptrace meaning that we generate false failures on
systems that don't support SVE when we attempt to set the vector length
there. Check the hwcap and mark the tests as skipped when it's not present.
Fixes: 0ba1ce1e86 ("selftests: arm64: Add coverage of ptrace flags for SVE VL inheritance")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220124175527.3260234-2-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
It is not straightforward to the newcomer that a single skb can
currently be sent at a time and that the internal process is to stop the
queue when processing a frame before re-enabling it.
Make this clear by documenting the ieee802154_wake/stop_queue()
helpers.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125122540.855604-4-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
This define already exist but is hardcoded in nl-phy.c. Use the
definition when relevant.
While at it, also convert the type from uint32_t to u32.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125122540.855604-3-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
There is no point in accepting frames with a wrong or missing checksum,
at least not outside of a promiscuous setting. Set the right flag by
default in the hwsim driver to ensure checksums are not ignored.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220125122540.855604-2-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
A single fix for 5.17-rc2, adding a missing resource allocation error
check in the pata_platform driver, from Zhou.
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Merge tag 'ata-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ATA fix from Damien Le Moal:
"A single fix for 5.17-rc2, adding a missing resource allocation error
check in the pata_platform driver, from Zhou"
* tag 'ata-5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: pata_platform: Fix a NULL pointer dereference in __pata_platform_probe()
This patch implements the same bug fix to ccio-dma.c as to sba_iommu.c.
It ensures that only the allocated entries of the sglist are accessed.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
With huge kernel pages, we randomly eat a SPARC in map_pages(). This
is fixed by dropping __init from the declaration.
However, map_pages references the __init routine memblock_alloc_try_nid
via memblock_alloc. Thus, it needs to be marked with __ref.
memblock_alloc is only called before the kernel text is set to readonly.
The __ref on free_initmem is no longer needed.
Comment regarding map_pages being in the init section is removed.
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Helge Deller <deller@gmx.de>
The %x format of sscanf() takes an unsigned int pointer, while we pass
a signed int pointer. Practically it's OK, but this may result in a
compile warning. Let's fix it.
Fixes: a235d5b8e5 ("ALSA: hda: Allow model option to specify PCI SSID alias")
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20220127135717.31751-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
- Fix crash in nct6775 driver
- Prevent divide by zero in adt7470 driver
- Fix conditional compile warning in pmbus/ir38064 driver
- Various minor fixes in lm90 driver
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Merge tag 'hwmon-for-v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix crash in nct6775 driver
- Prevent divide by zero in adt7470 driver
- Fix conditional compile warning in pmbus/ir38064 driver
- Various minor fixes in lm90 driver
* tag 'hwmon-for-v5.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (nct6775) Fix crash in clear_caseopen
hwmon: (adt7470) Prevent divide by zero in adt7470_fan_write()
hwmon: (pmbus/ir38064) Mark ir38064_of_match as __maybe_unused
hwmon: (lm90) Fix sysfs and udev notifications
hwmon: (lm90) Mark alert as broken for MAX6646/6647/6649
hwmon: (lm90) Mark alert as broken for MAX6680
hwmon: (lm90) Mark alert as broken for MAX6654
hwmon: (lm90) Re-enable interrupts after alert clears
hwmon: (lm90) Reduce maximum conversion rate for G781
Currently, SD card fails to mount due to the following pinctrl error:
[ 11.170000] imx23-pinctrl 80018000.pinctrl: pin SSP1_DETECT already requested by 80018000.pinctrl; cannot claim for 80010000.spi
[ 11.180000] imx23-pinctrl 80018000.pinctrl: pin-65 (80010000.spi) status -22
[ 11.190000] imx23-pinctrl 80018000.pinctrl: could not request pin 65 (SSP1_DETECT) from group mmc0-pins-fixup.0 on device 80018000.pinctrl
[ 11.200000] mxs-mmc 80010000.spi: Error applying setting, reverse things back
Fix it by removing the MX23_PAD_SSP1_DETECT pin from the hog group as it
is already been used by the mmc0-pins-fixup pinctrl group.
With this change the rootfs can be mounted and the imx23-evk board can
boot successfully.
Cc: <stable@vger.kernel.org>
Fixes: bc3875f1a6 ("ARM: dts: mxs: modify mx23/mx28 dts files to use pinctrl headers")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Pavel Begunkov says:
====================
udp/ipv6 optimisations
Shed some weight from udp/ipv6. Zerocopy benchmarks over dummy showed
~5% tx/s improvement, should be similar for small payload non-zc
cases.
The performance comes from killing 4 atomics and a couple of big struct
memcpy/memset. 1/10 removes a pair of atomics on dst refcounting for
cork->skb setup, 9/10 saves another pair on cork init. 5/10 and 8/10
kill extra 88B memset and memcpy respectively.
====================
Link: https://lore.kernel.org/r/cover.1643243772.git.asml.silence@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Inline a part of ipv6_fixup_options() to avoid extra overhead on
function call if opt is NULL.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
udpv6_sendmsg() doesn't need dst after calling ip6_make_skb(), so
instead of taking an additional reference inside ip6_setup_cork()
and releasing the initial one afterwards, we can hand over a reference
into ip6_make_skb() saving two atomics. The only other user of
ip6_setup_cork() is ip6_append_data() and it requires an extra
dst_hold().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
udpv6_sendmsg() first initialises an on-stack 88B struct flowi6 and then
copies it into cork, which is expensive. Avoid the copy in corkless case
by initialising on-stack cork->fl directly.
The main part is a couple of lines under !corkreq check. The rest
converts fl6 variable to be a pointer.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Another preparation patch. inet_cork_full already contains a field for
iflow, so we can avoid passing a separate struct iflow6 into
__ip6_append_data() and ip6_make_skb(), and use the flow stored in
inet_cork_full. Make sure callers set cork->fl, i.e. we init it in
ip6_append_data() and before calling ip6_make_skb().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Convert a struct inet_cork argument in __ip6_append_data() to struct
inet_cork_full. As one struct contains another inet_cork is still can
be accessed via ->base field. It's a preparation patch making further
changes a bit cleaner.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It doesn't appear there is any reason for ip6_cork_release() to zero
cork->fl, it'll be fully filled on next initialisation. This 88 bytes
memset accounts to 0.3-0.5% of total CPU cycles.
It's also needed in following patches and allows to remove an extar flow
copy in udp_v6_push_pending_frames().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Clean up ip6_setup_cork() and ip6_cork_release() adding a local variable
for v6_cork->opt. It's a preparation patch for further changes.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
ipv6_push_nfrag_opts() doesn't change passed daddr, and so
__ip6_make_skb() doesn't actually need to keep an on-stack copy of
fl6->daddr. Set initially final_dst to fl6->daddr,
ipv6_push_nfrag_opts() will override it if needed, and get rid of extra
copies.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Corked AF_INET for ipv6 socket doesn't appear to be the hottest case,
so move it out of the common path under up->pending check to remove
overhead.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
__ip6_make_skb() gets a cork->dst ref, hands it over to skb and shortly
after puts cork->dst. Save two atomics by stealing it without extra
referencing, ip6_cork_release() handles NULL cork->dst.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Hangbin Liu says:
====================
There are some bpf tests using hard code netns name like ns0, ns1, etc.
This kind of ns name is easily used by other tests or system. If there
is already a such netns, all the related tests will failed. So let's
use temp netns name for testing.
The first patch not only change to temp netns. But also fixed an interface
index issue. So I add fixes tag. For the later patches, I think that
should be an update instead of fixes, so the fixes tag is not added.
====================
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Use temp netns instead of hard code name for testing in case the
netns already exists.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: William Tu <u9012063@gmail.com>
Link: https://lore.kernel.org/r/20220125081717.1260849-8-liuhangbin@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Use temp netns instead of hard code name for testing in case the
netns already exists.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Lorenz Bauer <lmb@cloudflare.com>
Link: https://lore.kernel.org/r/20220125081717.1260849-6-liuhangbin@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Use temp netns instead of hard code name for testing in case the netns
already exists.
Remove the hard code interface index when creating the veth interfaces.
Because when the system loads some virtual interface modules, e.g. tunnels.
the ifindex of 2 will be used and the cmd will fail.
As the netns has not created if checking environment failed. Trap the
clean up function after checking env.
Fixes: 8955c1a329 ("selftests/bpf/xdp_redirect_multi: Limit the tests in netns")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: William Tu <u9012063@gmail.com>
Link: https://lore.kernel.org/r/20220125081717.1260849-2-liuhangbin@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Ido Schimmel says:
====================
mlxsw: Various updates
This patchset contains miscellaneous updates for mlxsw. No user visible
changes that I am aware of.
Patches #1-#5 rework registration of internal traps in preparation of
line cards support.
Patch #6 improves driver resilience against a misbehaving device.
Patch #7 prevents the driver from overwriting device internal actions.
See the commit message for more details.
====================
Link: https://lore.kernel.org/r/20220127090226.283442-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In Spectrum-2 and later ASICs, each TCAM region has a default action
that is executed in case a packet did not match any rule in the region.
The location of the action in the database (KVDL) is computed by adding
the region's index to a base value.
Some TCAM regions are not exposed to the host and used internally by the
device. Allocate KVDL entries for the default actions of these regions
to avoid the host from overwriting them.
With mlxsw, lookups in the internal regions are not currently performed,
but it is a good practice not to overwrite their default actions.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When processing events generated by the device's firmware, the driver
protects itself from events reported for non-existent local ports, but
not for the CPU port (local port 0), which exists, but does not have all
the fields as any local port.
This can result in a NULL pointer dereference when trying access
'struct mlxsw_sp_port' fields which are not initialized for CPU port.
Commit 63b08b1f68 ("mlxsw: spectrum: Protect driver from buggy firmware")
already handled such issue by bailing early when processing a PUDE event
reported for the CPU port.
Generalize the approach by moving the check to a common function and
making use of it in all relevant places.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
For event traps which are used in core, avoid having a separate trap
group for each event. Instead of that introduce a single core event trap
group and use it for all event traps.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
These functions belong to core.c alongside the functions that
register/unregister a single trap. Move it there. Make the functions
possibly usable by other parts of mlxsw code.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Instead of initializing the trap groups used by core in spectrum.c
over op, do it directly in core.c
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The call inits the EMAD group, but other groups as well. Therefore, move
it out of EMAD init code and call it before.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Instead of calling the same code four times, do it in a loop over array
which contains trap grups to be set.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ensure to reset the tx_timer_active flag in xgbe_stop(),
otherwise a port restart may result in tx timeout due to
uncleared flag.
Fixes: c635eaacbf ("amd-xgbe: Remove Tx coalescing")
Co-developed-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20220127060222.453371-1-Raju.Rangoju@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1) Dima, adds an internal mlx5 steering callback per steering provider
(FW vs SW steering), to advertise steering capabilities implemented by
each module, this helps upper modules in mlx5 to know what is
supported and what's not without the need to tell what is the underlying
steering mode.
2nd patch is the usecase where this interface is used to implement
Vlan Push/pop for uplink with SW steering, where in FW mode it's not
supported yet.
2) Roi Dayan improves code readability and maintainability
as preparation step for multi attribute instance per flow
in mlx5 TC module
Currently the mlx5_flow object contains a single mlx5_attr instance.
However, multi table actions (e.g. CT) instantiate multiple attr instances.
This is a refactoring series in a preparation to support multiple
attribute instances per flow.
The commits prepare functions to get attr instance instead of using
flow->attr and also using attr->flags if the flag is more relevant
to be attr flag and not a flow flag considering there will be multiple
attr instances. i.e. CT and SAMPLE flags.
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Merge tag 'mlx5-updates-2022-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2022-01-27
1) Dima, adds an internal mlx5 steering callback per steering provider
(FW vs SW steering), to advertise steering capabilities implemented by
each module, this helps upper modules in mlx5 to know what is
supported and what's not without the need to tell what is the underlying
steering mode.
2nd patch is the usecase where this interface is used to implement
Vlan Push/pop for uplink with SW steering, where in FW mode it's not
supported yet.
2) Roi Dayan improves code readability and maintainability
as preparation step for multi attribute instance per flow
in mlx5 TC module
Currently the mlx5_flow object contains a single mlx5_attr instance.
However, multi table actions (e.g. CT) instantiate multiple attr instances.
This is a refactoring series in a preparation to support multiple
attribute instances per flow.
The commits prepare functions to get attr instance instead of using
flow->attr and also using attr->flags if the flag is more relevant
to be attr flag and not a flow flag considering there will be multiple
attr instances. i.e. CT and SAMPLE flags.
* tag 'mlx5-updates-2022-01-27' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: VLAN push on RX, pop on TX
net/mlx5: Introduce software defined steering capabilities
net/mlx5: Remove unused TIR modify bitmask enums
net/mlx5e: CT, Remove redundant flow args from tc ct calls
net/mlx5e: TC, Store mapped tunnel id on flow attr
net/mlx5e: Test CT and SAMPLE on flow attr
net/mlx5e: Refactor eswitch attr flags to just attr flags
net/mlx5e: CT, Don't set flow flag CT for ct clear flow
net/mlx5e: TC, Hold sample_attr on stack instead of pointer
net/mlx5e: TC, Reject rules with multiple CT actions
net/mlx5e: TC, Refactor mlx5e_tc_add_flow_mod_hdr() to get flow attr
net/mlx5e: TC, Pass attr to tc_act can_offload()
net/mlx5e: TC, Split pedit offloads verify from alloc_tc_pedit_action()
net/mlx5e: TC, Move pedit_headers_action to parse_attr
net/mlx5e: Move counter creation call to alloc_flow_attr_counter()
net/mlx5e: Pass attr arg for attaching/detaching encaps
net/mlx5e: Move code chunk setting encap dests into its own function
====================
Link: https://lore.kernel.org/r/20220127204007.146300-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Remove leftovers from flowtable modules, from Geert Uytterhoeven.
2) Missing refcount increment of conntrack template in nft_ct,
from Florian Westphal.
3) Reduce nft_zone selftest time, also from Florian.
4) Add selftest to cover stateless NAT on fragments, from Florian Westphal.
5) Do not set net_device when for reject packets from the bridge path,
from Phil Sutter.
6) Cancel register tracking info on nft_byteorder operations.
7) Extend nft_concat_range selftest to cover set reload with no elements,
from Florian Westphal.
8) Remove useless update of pointer in chain blob builder, reported
by kbuild test robot.
* git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf:
netfilter: nf_tables: remove assignment with no effect in chain blob builder
selftests: nft_concat_range: add test for reload with no element add/del
netfilter: nft_byteorder: track register operations
netfilter: nft_reject_bridge: Fix for missing reply from prerouting
selftests: netfilter: check stateless nat udp checksum fixup
selftests: netfilter: reduce zone stress test running time
netfilter: nft_ct: fix use after free when attaching zone template
netfilter: Remove flowtable relics
====================
Link: https://lore.kernel.org/r/20220127235235.656931-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
