Tony Nguyen says:
====================
ice: PPPoE offload support
Marcin Szycik says:
Add support for dissecting PPPoE and PPP-specific fields in flow dissector:
PPPoE session id and PPP protocol type. Add support for those fields in
tc-flower and support offloading PPPoE. Finally, add support for hardware
offload of PPPoE packets in switchdev mode in ice driver.
Example filter:
tc filter add dev $PF1 ingress protocol ppp_ses prio 1 flower pppoe_sid \
1234 ppp_proto ip skip_sw action mirred egress redirect dev $VF1_PR
Changes in iproute2 are required to use the new fields (will be submitted
soon).
ICE COMMS DDP package is required to create a filter in ice.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
ice: Add support for PPPoE hardware offload
flow_offload: Introduce flow_match_pppoe
net/sched: flower: Add PPPoE filter
flow_dissector: Add PPPoE dissectors
====================
Link: https://lore.kernel.org/r/20220726203133.2171332-1-anthony.l.nguyen@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
issues or are too minor to warrant backporting
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Merge tag 'mm-hotfixes-stable-2022-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"Thirteen hotfixes.
Eight are cc:stable and the remainder are for post-5.18 issues or are
too minor to warrant backporting"
* tag 'mm-hotfixes-stable-2022-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: update Gao Xiang's email addresses
userfaultfd: provide properly masked address for huge-pages
Revert "ocfs2: mount shared volume without ha stack"
hugetlb: fix memoryleak in hugetlb_mcopy_atomic_pte
fs: sendfile handles O_NONBLOCK of out_fd
ntfs: fix use-after-free in ntfs_ucsncmp()
secretmem: fix unhandled fault in truncate
mm/hugetlb: separate path for hwpoison entry in copy_hugetlb_page_range()
mm: fix missing wake-up event for FSDAX pages
mm: fix page leak with multiple threads mapping the same page
mailmap: update Seth Forshee's email address
tmpfs: fix the issue that the mount and remount results are inconsistent.
mm: kfence: apply kmemleak_ignore_phys on early allocated pool
Allow to dissect PPPoE specific fields which are:
- session ID (16 bits)
- ppp protocol (16 bits)
- type (16 bits) - this is PPPoE ethertype, for now only
ETH_P_PPP_SES is supported, possible ETH_P_PPP_DISC
in the future
The goal is to make the following TC command possible:
# tc filter add dev ens6f0 ingress prio 1 protocol ppp_ses \
flower \
pppoe_sid 12 \
ppp_proto ip \
action drop
Note that only PPPoE Session is supported.
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Third set of patches for v5.20. MLO work continues and we have a lot
of stack changes due to that, including driver API changes. Not much
driver patches except on mt76.
Major changes:
cfg80211/mac80211
* more prepartion for Wi-Fi 7 Multi-Link Operation (MLO) support,
works with one link now
* align with IEEE Draft P802.11be_D2.0
* hardware timestamps for receive and transmit
mt76
* preparation for new chipset support
* ACPI SAR support
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Merge tag 'wireless-next-2022-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:
====================
wireless-next patches for v5.20
Third set of patches for v5.20. MLO work continues and we have a lot
of stack changes due to that, including driver API changes. Not much
driver patches except on mt76.
Major changes:
cfg80211/mac80211
- more prepartion for Wi-Fi 7 Multi-Link Operation (MLO) support,
works with one link now
- align with IEEE Draft P802.11be_D2.0
- hardware timestamps for receive and transmit
mt76
- preparation for new chipset support
- ACPI SAR support
* tag 'wireless-next-2022-07-25' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (254 commits)
wifi: mac80211: fix link data leak
wifi: mac80211: mlme: fix disassoc with MLO
wifi: mac80211: add macros to loop over active links
wifi: mac80211: remove erroneous sband/link validation
wifi: mac80211: mlme: transmit assoc frame with address translation
wifi: mac80211: verify link addresses are different
wifi: mac80211: rx: track link in RX data
wifi: mac80211: optionally implement MLO multicast TX
wifi: mac80211: expand ieee80211_mgmt_tx() for MLO
wifi: nl80211: add MLO link ID to the NL80211_CMD_FRAME TX API
wifi: mac80211: report link ID to cfg80211 on mgmt RX
wifi: cfg80211: report link ID in NL80211_CMD_FRAME
wifi: mac80211: add hardware timestamps for RX and TX
wifi: cfg80211: add hardware timestamps to frame RX info
wifi: cfg80211/nl80211: move rx management data into a struct
wifi: cfg80211: add a function for reporting TX status with hardware timestamps
wifi: nl80211: add RX and TX timestamp attributes
wifi: ieee80211: add helper functions for detecting TM/FTM frames
wifi: mac80211_hwsim: handle links for wmediumd/virtio
wifi: mac80211: sta_info: fix link_sta insertion
...
====================
Link: https://lore.kernel.org/r/20220725174547.EA465C341C6@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Daniel Borkmann says:
====================
bpf-next 2022-07-22
We've added 73 non-merge commits during the last 12 day(s) which contain
a total of 88 files changed, 3458 insertions(+), 860 deletions(-).
The main changes are:
1) Implement BPF trampoline for arm64 JIT, from Xu Kuohai.
2) Add ksyscall/kretsyscall section support to libbpf to simplify tracing kernel
syscalls through kprobe mechanism, from Andrii Nakryiko.
3) Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel
function, from Song Liu & Jiri Olsa.
4) Add new kfunc infrastructure for netfilter's CT e.g. to insert and change
entries, from Kumar Kartikeya Dwivedi & Lorenzo Bianconi.
5) Add a ksym BPF iterator to allow for more flexible and efficient interactions
with kernel symbols, from Alan Maguire.
6) Bug fixes in libbpf e.g. for uprobe binary path resolution, from Dan Carpenter.
7) Fix BPF subprog function names in stack traces, from Alexei Starovoitov.
8) libbpf support for writing custom perf event readers, from Jon Doron.
9) Switch to use SPDX tag for BPF helper man page, from Alejandro Colomar.
10) Fix xsk send-only sockets when in busy poll mode, from Maciej Fijalkowski.
11) Reparent BPF maps and their charging on memcg offlining, from Roman Gushchin.
12) Multiple follow-up fixes around BPF lsm cgroup infra, from Stanislav Fomichev.
13) Use bootstrap version of bpftool where possible to speed up builds, from Pu Lehui.
14) Cleanup BPF verifier's check_func_arg() handling, from Joanne Koong.
15) Make non-prealloced BPF map allocations low priority to play better with
memcg limits, from Yafang Shao.
16) Fix BPF test runner to reject zero-length data for skbs, from Zhengchao Shao.
17) Various smaller cleanups and improvements all over the place.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (73 commits)
bpf: Simplify bpf_prog_pack_[size|mask]
bpf: Support bpf_trampoline on functions with IPMODIFY (e.g. livepatch)
bpf, x64: Allow to use caller address from stack
ftrace: Allow IPMODIFY and DIRECT ops on the same function
ftrace: Add modify_ftrace_direct_multi_nolock
bpf/selftests: Fix couldn't retrieve pinned program in xdp veth test
bpf: Fix build error in case of !CONFIG_DEBUG_INFO_BTF
selftests/bpf: Fix test_verifier failed test in unprivileged mode
selftests/bpf: Add negative tests for new nf_conntrack kfuncs
selftests/bpf: Add tests for new nf_conntrack kfuncs
selftests/bpf: Add verifier tests for trusted kfunc args
net: netfilter: Add kfuncs to set and change CT status
net: netfilter: Add kfuncs to set and change CT timeout
net: netfilter: Add kfuncs to allocate and insert CT
net: netfilter: Deduplicate code in bpf_{xdp,skb}_ct_lookup
bpf: Add documentation for kfuncs
bpf: Add support for forcing kfunc args to be trusted
bpf: Switch to new kfunc flags infrastructure
tools/resolve_btfids: Add support for 8-byte BTF sets
bpf: Introduce 8-byte BTF set
...
====================
Link: https://lore.kernel.org/r/20220722221218.29943-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When tracing a function with IPMODIFY ftrace_ops (livepatch), the bpf
trampoline must follow the instruction pointer saved on stack. This needs
extra handling for bpf trampolines with BPF_TRAMP_F_CALL_ORIG flag.
Implement bpf_tramp_ftrace_ops_func and use it for the ftrace_ops used
by BPF trampoline. This enables tracing functions with livepatch.
This also requires moving bpf trampoline to *_ftrace_direct_mult APIs.
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/all/20220602193706.2607681-2-song@kernel.org/
Link: https://lore.kernel.org/bpf/20220720002126.803253-5-song@kernel.org
Currently we call the original function by using the absolute address
given at the JIT generation. That's not usable when having trampoline
attached to multiple functions, or the target address changes dynamically
(in case of live patch). In such cases we need to take the return address
from the stack.
Adding support to retrieve the original function address from the stack
by adding new BPF_TRAMP_F_ORIG_STACK flag for arch_prepare_bpf_trampoline
function.
Basically we take the return address of the 'fentry' call:
function + 0: call fentry # stores 'function + 5' address on stack
function + 5: ...
The 'function + 5' address will be used as the address for the
original function to call.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220720002126.803253-4-song@kernel.org
IPMODIFY (livepatch) and DIRECT (bpf trampoline) ops are both important
users of ftrace. It is necessary to allow them work on the same function
at the same time.
First, DIRECT ops no longer specify IPMODIFY flag. Instead, DIRECT flag is
handled together with IPMODIFY flag in __ftrace_hash_update_ipmodify().
Then, a callback function, ops_func, is added to ftrace_ops. This is used
by ftrace core code to understand whether the DIRECT ops can share with an
IPMODIFY ops. To share with IPMODIFY ops, the DIRECT ops need to implement
the callback function and adjust the direct trampoline accordingly.
If DIRECT ops is attached before the IPMODIFY ops, ftrace core code calls
ENABLE_SHARE_IPMODIFY_PEER on the DIRECT ops before registering the
IPMODIFY ops.
If IPMODIFY ops is attached before the DIRECT ops, ftrace core code calls
ENABLE_SHARE_IPMODIFY_SELF in __ftrace_hash_update_ipmodify. Owner of the
DIRECT ops may return 0 if the DIRECT trampoline can share with IPMODIFY,
so error code otherwise. The error code is propagated to
register_ftrace_direct_multi so that onwer of the DIRECT trampoline can
handle it properly.
For more details, please refer to comment before enum ftrace_ops_cmd.
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/all/20220602193706.2607681-2-song@kernel.org/
Link: https://lore.kernel.org/all/20220718055449.3960512-1-song@kernel.org/
Link: https://lore.kernel.org/bpf/20220720002126.803253-3-song@kernel.org
This is similar to modify_ftrace_direct_multi, but does not acquire
direct_mutex. This is useful when direct_mutex is already locked by the
user.
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/bpf/20220720002126.803253-2-song@kernel.org
BTF_ID_FLAGS macro needs to be able to take 0 or 1 args, so make it a
variable argument. BTF_SET8_END is incorrect, it should just be empty.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: ab21d6063c ("bpf: Introduce 8-byte BTF set")
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20220722113605.6513-1-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add helper functions for detection timing measurement
and fine timing measurement frames.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This patch adds missing includes to headers under include/net.
All these problems are currently masked by the existing users
including the missing dependency before the broken header.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Teach the verifier to detect a new KF_TRUSTED_ARGS kfunc flag, which
means each pointer argument must be trusted, which we define as a
pointer that is referenced (has non-zero ref_obj_id) and also needs to
have its offset unchanged, similar to how release functions expect their
argument. This allows a kfunc to receive pointer arguments unchanged
from the result of the acquire kfunc.
This is required to ensure that kfunc that operate on some object only
work on acquired pointers and not normal PTR_TO_BTF_ID with same type
which can be obtained by pointer walking. The restrictions applied to
release arguments also apply to trusted arguments. This implies that
strict type matching (not deducing type by recursively following members
at offset) and OBJ_RELEASE offset checks (ensuring they are zero) are
used for trusted pointer arguments.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220721134245.2450-5-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Instead of populating multiple sets to indicate some attribute and then
researching the same BTF ID in them, prepare a single unified BTF set
which indicates whether a kfunc is allowed to be called, and also its
attributes if any at the same time. Now, only one call is needed to
perform the lookup for both kfunc availability and its attributes.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220721134245.2450-4-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Introduce support for defining flags for kfuncs using a new set of
macros, BTF_SET8_START/BTF_SET8_END, which define a set which contains
8 byte elements (each of which consists of a pair of BTF ID and flags),
using a new BTF_ID_FLAGS macro.
This will be used to tag kfuncs registered for a certain program type
as acquire, release, sleepable, ret_null, etc. without having to create
more and more sets which was proving to be an unscalable solution.
Now, when looking up whether a kfunc is allowed for a certain program,
we can also obtain its kfunc flags in the same call and avoid further
lookups.
The resolve_btfids change is split into a separate patch.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220721134245.2450-2-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Previous releases - regressions:
- tcp/udp: make early_demux back namespacified.
- dsa: fix issues with vlan_filtering_is_global
Previous releases - always broken:
- ip: fix data-races around ipv4_net_table (round 2, 3 & 4)
- amt: fix validation and synchronization bugs
- can: fix detection of mcp251863
- eth: iavf: fix handling of dummy receive descriptors
- eth: lan966x: fix issues with MAC table
- eth: stmmac: dwmac-mediatek: fix clock issue
Misc:
- dsa: update documentation
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from can.
Still no major regressions, most of the changes are still due to data
races fixes, plus the usual bunch of drivers fixes.
Previous releases - regressions:
- tcp/udp: make early_demux back namespacified.
- dsa: fix issues with vlan_filtering_is_global
Previous releases - always broken:
- ip: fix data-races around ipv4_net_table (round 2, 3 & 4)
- amt: fix validation and synchronization bugs
- can: fix detection of mcp251863
- eth: iavf: fix handling of dummy receive descriptors
- eth: lan966x: fix issues with MAC table
- eth: stmmac: dwmac-mediatek: fix clock issue
Misc:
- dsa: update documentation"
* tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (107 commits)
mlxsw: spectrum_router: Fix IPv4 nexthop gateway indication
net/sched: cls_api: Fix flow action initialization
tcp: Fix data-races around sysctl_tcp_max_reordering.
tcp: Fix a data-race around sysctl_tcp_abort_on_overflow.
tcp: Fix a data-race around sysctl_tcp_rfc1337.
tcp: Fix a data-race around sysctl_tcp_stdurg.
tcp: Fix a data-race around sysctl_tcp_retrans_collapse.
tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.
tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.
tcp: Fix data-races around sysctl_tcp_recovery.
tcp: Fix a data-race around sysctl_tcp_early_retrans.
tcp: Fix data-races around sysctl knobs related to SYN option.
udp: Fix a data-race around sysctl_udp_l3mdev_accept.
ip: Fix data-races around sysctl_ip_prot_sock.
ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.
ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.
ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh.
can: rcar_canfd: Add missing of_node_put() in rcar_canfd_probe()
can: mcp251xfd: fix detection of mcp251863
Documentation: fix udp_wmem_min in ip-sysctl.rst
...
DisplayLink ethernet devices require NTB buffers larger then 32kb
in order to run with highest performance.
This patch is changing upper limit of the rx and tx buffers.
Those buffers are initialized with CDC_NCM_NTB_DEF_SIZE_RX and
CDC_NCM_NTB_DEF_SIZE_TX which is 16kb so by default no device is
affected by increased limit.
Rx and tx buffer is increased under two conditions:
- Device need to advertise that it supports higher buffer size in
dwNtbMaxInMaxSize and dwNtbMaxOutMaxSize.
- cdc_ncm/rx_max and cdc_ncm/tx_max driver parameters must be adjusted
with udev rule or ethtool.
Summary of testing and performance results:
Tests were performed on following devices:
- DisplayLink DL-3xxx family device
- DisplayLink DL-6xxx family device
- ASUS USB-C2500 2.5G USB3 ethernet adapter
- Plugable USB3 1G USB3 ethernet adapter
- EDIMAX EU-4307 USB-C ethernet adapter
- Dell DBQBCBC064 USB-C ethernet adapter
Performance measurements were done with:
- iperf3 between two linux boxes
- http://openspeedtest.com/ instance running on local test machine
Insights from tests results:
- All except one from third party usb adapters were not affected by
increased buffer size to their advertised dwNtbOutMaxSize and
dwNtbInMaxSize.
Devices were generally reaching 912-940Mbps both download and upload.
Only EDIMAX adapter experienced decreased download size from
929Mbps to 827Mbps with iper3, with openspeedtest decrease was from
968Mbps to 886Mbps.
- DisplayLink DL-3xxx family devices experienced performance increase
with iperf3 download from 300Mbps to 870Mbps and
upload from 782Mbps to 844Mbps.
With openspeedtest download increased from 556Mbps to 873Mbps
and upload from 727Mbps to 973Mbps
- DiplayLink DL-6xxx family devices are not affected by
increased buffer size.
Signed-off-by: Łukasz Spintzyk <lukasz.spintzyk@synaptics.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220720060518.541-2-lukasz.spintzyk@synaptics.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Pablo Neira Ayuso says:
====================
Netfilter/IPVS updates for net-next
The following patchset contains Netfilter/IPVS updates for net-next:
1) Simplify nf_ct_get_tuple(), from Jackie Liu.
2) Add format to request_module() call, from Bill Wendling.
3) Add /proc/net/stats/nf_flowtable to monitor in-flight pending
hardware offload objects to be processed, from Vlad Buslov.
4) Missing rcu annotation and accessors in the netfilter tree,
from Florian Westphal.
5) Merge h323 conntrack helper nat hooks into single object,
also from Florian.
6) A batch of update to fix sparse warnings treewide,
from Florian Westphal.
7) Move nft_cmp_fast_mask() where it used, from Florian.
8) Missing const in nf_nat_initialized(), from James Yonan.
9) Use bitmap API for Maglev IPVS scheduler, from Christophe Jaillet.
10) Use refcount_inc instead of _inc_not_zero in flowtable,
from Florian Westphal.
11) Remove pr_debug in xt_TPROXY, from Nathan Cancellor.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: xt_TPROXY: remove pr_debug invocations
netfilter: flowtable: prefer refcount_inc
netfilter: ipvs: Use the bitmap API to allocate bitmaps
netfilter: nf_nat: in nf_nat_initialized(), use const struct nf_conn *
netfilter: nf_tables: move nft_cmp_fast_mask to where its used
netfilter: nf_tables: use correct integer types
netfilter: nf_tables: add and use BE register load-store helpers
netfilter: nf_tables: use the correct get/put helpers
netfilter: x_tables: use correct integer types
netfilter: nfnetlink: add missing __be16 cast
netfilter: nft_set_bitmap: Fix spelling mistake
netfilter: h323: merge nat hook pointers into one
netfilter: nf_conntrack: use rcu accessors where needed
netfilter: nf_conntrack: add missing __rcu annotations
netfilter: nf_flow_table: count pending offload workqueue tasks
net/sched: act_ct: set 'net' pointer when creating new nf_flow_table
netfilter: conntrack: use correct format characters
netfilter: conntrack: use fallthrough to cleanup
====================
Link: https://lore.kernel.org/r/20220720230754.209053-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1) Add resiliency for lost completions for PTP TX port timestamp
2) Report Header-data split state via ethtool
3) Decouple HTB code from main regular TX code
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Merge tag 'mlx5-updates-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2022-07-17
1) Add resiliency for lost completions for PTP TX port timestamp
2) Report Header-data split state via ethtool
3) Decouple HTB code from main regular TX code
* tag 'mlx5-updates-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: CT: Remove warning of ignore_flow_level support for non PF
net/mlx5e: Add resiliency for PTP TX port timestamp
net/mlx5: Expose ts_cqe_metadata_size2wqe_counter
net/mlx5e: HTB, move htb functions to a new file
net/mlx5e: HTB, change functions name to follow convention
net/mlx5e: HTB, remove priv from htb function calls
net/mlx5e: HTB, hide and dynamically allocate mlx5e_htb structure
net/mlx5e: HTB, move stats and max_sqs to priv
net/mlx5e: HTB, move section comment to the right place
net/mlx5e: HTB, move ids to selq_params struct
net/mlx5e: HTB, reduce visibility of htb functions
net/mlx5e: Fix mqprio_rl handling on devlink reload
net/mlx5e: Report header-data split state through ethtool
====================
Link: https://lore.kernel.org/r/20220719203529.51151-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
They were updated in kernel/bpf/trampoline.c to fix another build
issue. We should to do the same for include/linux/bpf.h header.
Fixes: 3908fcddc6 ("bpf: fix lsm_cgroup build errors on esoteric configs")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20220720155220.4087433-1-sdf@google.com
Pavel Begunkov says:
====================
io_uring zerocopy send
The patchset implements io_uring zerocopy send. It works with both registered
and normal buffers, mixing is allowed but not recommended. Apart from usual
request completions, just as with MSG_ZEROCOPY, io_uring separately notifies
the userspace when buffers are freed and can be reused (see API design below),
which is delivered into io_uring's Completion Queue. Those "buffer-free"
notifications are not necessarily per request, but the userspace has control
over it and should explicitly attaching a number of requests to a single
notification. The series also adds some internal optimisations when used with
registered buffers like removing page referencing.
From the kernel networking perspective there are two main changes. The first
one is passing ubuf_info into the network layer from io_uring (inside of an
in kernel struct msghdr). This allows extra optimisations, e.g. ubuf_info
caching on the io_uring side, but also helps to avoid cross-referencing
and synchronisation problems. The second part is an optional optimisation
removing page referencing for requests with registered buffers.
Benchmarking UDP with an optimised version of the selftest (see [1]), which
sends a bunch of requests, waits for completions and repeats. "+ flush" column
posts one additional "buffer-free" notification per request, and just "zc"
doesn't post buffer notifications at all.
NIC (requests / second):
IO size | non-zc | zc | zc + flush
4000 | 495134 | 606420 (+22%) | 558971 (+12%)
1500 | 551808 | 577116 (+4.5%) | 565803 (+2.5%)
1000 | 584677 | 592088 (+1.2%) | 560885 (-4%)
600 | 596292 | 598550 (+0.4%) | 555366 (-6.7%)
dummy (requests / second):
IO size | non-zc | zc | zc + flush
8000 | 1299916 | 2396600 (+84%) | 2224219 (+71%)
4000 | 1869230 | 2344146 (+25%) | 2170069 (+16%)
1200 | 2071617 | 2361960 (+14%) | 2203052 (+6%)
600 | 2106794 | 2381527 (+13%) | 2195295 (+4%)
Previously it also brought a massive performance speedup compared to the
msg_zerocopy tool (see [3]), which is probably not super interesting. There
is also an additional bunch of refcounting optimisations that was omitted from
the series for simplicity and as they don't change the picture drastically,
they will be sent as follow up, as well as flushing optimisations closing the
performance gap b/w two last columns.
For TCP on localhost (with hacks enabling localhost zerocopy) and including
additional overhead for receive:
IO size | non-zc | zc
1200 | 4174 | 4148
4096 | 7597 | 11228
Using a real NIC 1200 bytes, zc is worse than non-zc ~5-10%, maybe the
omitted optimisations will somewhat help, should look better for 4000,
but couldn't test properly because of setup problems.
Links:
liburing (benchmark + tests):
[1] https://github.com/isilence/liburing/tree/zc_v4
kernel repo:
[2] https://github.com/isilence/linux/tree/zc_v4
RFC v1:
[3] https://lore.kernel.org/io-uring/cover.1638282789.git.asml.silence@gmail.com/
RFC v2:
https://lore.kernel.org/io-uring/cover.1640029579.git.asml.silence@gmail.com/
Net patches based:
git@github.com:isilence/linux.git zc_v4-net-base
or
https://github.com/isilence/linux/tree/zc_v4-net-base
API design overview:
The series introduces an io_uring concept of notifactors. From the userspace
perspective it's an entity to which it can bind one or more requests and then
requesting to flush it. Flushing a notifier makes it impossible to attach new
requests to it, and instructs the notifier to post a completion once all
requests attached to it are completed and the kernel doesn't need the buffers
anymore.
Notifications are stored in notification slots, which should be registered as
an array in io_uring. Each slot stores only one notifier at any particular
moment. Flushing removes it from the slot and the slot automatically replaces
it with a new notifier. All operations with notifiers are done by specifying
an index of a slot it's currently in.
When registering a notification the userspace specifies a u64 tag for each
slot, which will be copied in notification completion entries as
cqe::user_data. cqe::res is 0 and cqe::flags is equal to wrap around u32
sequence number counting notifiers of a slot.
====================
Link: https://lore.kernel.org/r/cover.1657643355.git.asml.silence@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Managed pages contain pinned userspace pages and controlled by upper
layers, there is no need in tracking skb->pfmemalloc for them. Introduce
a helper for filling frags but ignoring page tracking, it'll be needed
later.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Some users like io_uring can do page pinning more efficiently, so we
want a way to delegate referencing to other subsystems. For that add
a new flag called SKBFL_MANAGED_FRAG_REFS. When set, skb doesn't hold
page references and upper layers are responsivle to managing page
lifetime.
It's allowed to convert skbs from managed to normal by calling
skb_zcopy_downgrade_managed(). The function will take all needed
page references and clear the flag. It's needed, for instance,
to avoid mixing managed modes.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add support for custom iov_iter handling to msghdr. The idea is that
in-kernel subsystems want control over how an SG is split.
Signed-off-by: David Ahern <dsahern@kernel.org>
[pavel: move callback into msghdr]
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Make possible for network in-kernel callers like io_uring to pass in a
custom ubuf_info by setting it in a new field of struct msghdr.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add capability field which indicates the mask for wqe_counter which
connects between loopback CQE and the original WQE. With this connection
the driver can identify lost of the loopback CQE and reply PTP
synchronization with timestamp given in the original CQE.
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
We don't want to list every single ubuf_info callback in
skb_orphan_frags(), add a flag controlling the behaviour.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
FSDAX page refcounts are 1-based, rather than 0-based: if refcount is
1, then the page is freed. The FSDAX pages can be pinned through GUP,
then they will be unpinned via unpin_user_page() using a folio variant
to put the page, however, folio variants did not consider this special
case, the result will be to miss a wakeup event (like the user of
__fuse_dax_break_layouts()). This results in a task being permanently
stuck in TASK_INTERRUPTIBLE state.
Since FSDAX pages are only possibly obtained by GUP users, so fix GUP
instead of folio_put() to lower overhead.
Link: https://lkml.kernel.org/r/20220705123532.283-1-songmuchun@bytedance.com
Fixes: d8ddc099c6 ("mm/gup: Add gup_put_folio()")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Using current implementation of polling mode, there is high chances we
will hit into timeout error when running phc2sys. Hence, update the
implementation of hardware crosstimestamping to use the MAC interrupt
service routine instead of polling for TSIS bit in the MAC Timestamp
Interrupt Status register to be set.
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Here are some TTY and Serial driver fixes for 5.19-rc7. They resolve a
number of reported problems including:
- long time bug in pty_write() that has been reported in the
past.
- 8250 driver fixes
- new serial device ids
- vt overlapping data copy bugfix
- other tiny serial driver bugfixes
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty and serial driver fixes from Greg KH:
"Here are some TTY and Serial driver fixes for 5.19-rc7. They resolve a
number of reported problems including:
- longtime bug in pty_write() that has been reported in the past.
- 8250 driver fixes
- new serial device ids
- vt overlapping data copy bugfix
- other tiny serial driver bugfixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'tty-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()
tty: extract tty_flip_buffer_commit() from tty_flip_buffer_push()
serial: 8250: dw: Fix the macro RZN1_UART_xDMACR_8_WORD_BURST
vt: fix memory overlapping when deleting chars in the buffer
serial: mvebu-uart: correctly report configured baudrate value
serial: 8250: Fix PM usage_count for console handover
serial: 8250: fix return error code in serial8250_request_std_resource()
serial: stm32: Clear prev values before setting RTS delays
tty: Add N_CAN327 line discipline ID for ELM327 based CAN driver
serial: 8250: Fix __stop_tx() & DMA Tx restart races
serial: pl011: UPSTAT_AUTORTS requires .throttle/unthrottle
tty: serial: samsung_tty: set dma burst_size to 1
serial: 8250: dw: enable using pdata with ACPI
In many deployments, we want the option to not learn a neighbor from
garp if the src ip is not in the same subnet as an address configured
on the interface that received the garp message. net.ipv4.arp_accept
sysctl is currently used to control creation of a neigh from a
received garp packet. This patch adds a new option '2' to
net.ipv4.arp_accept which extends option '1' by including the subnet
check.
Signed-off-by: Jaehee Park <jhpark1013@gmail.com>
Suggested-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* Fix missing PAGE_PFN_MASK
* Fix SRCU deadlock caused by kvm_riscv_check_vcpu_requests()
x86:
* Fix for nested virtualization when TSC scaling is active
* Estimate the size of fastcc subroutines conservatively, avoiding disastrous
underestimation when return thunks are enabled
* Avoid possible use of uninitialized fields of 'struct kvm_lapic_irq'
Generic:
* Mark as such the boolean values available from the statistics file descriptors
* Clarify statistics documentation
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"RISC-V:
- Fix missing PAGE_PFN_MASK
- Fix SRCU deadlock caused by kvm_riscv_check_vcpu_requests()
x86:
- Fix for nested virtualization when TSC scaling is active
- Estimate the size of fastcc subroutines conservatively, avoiding
disastrous underestimation when return thunks are enabled
- Avoid possible use of uninitialized fields of 'struct
kvm_lapic_irq'
Generic:
- Mark as such the boolean values available from the statistics file
descriptors
- Clarify statistics documentation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: emulate: do not adjust size of fastop and setcc subroutines
KVM: x86: Fully initialize 'struct kvm_lapic_irq' in kvm_pv_kick_cpu_op()
Documentation: kvm: clarify histogram units
kvm: stats: tell userspace which values are boolean
x86/kvm: fix FASTOP_SIZE when return thunks are enabled
KVM: nVMX: Always enable TSC scaling for L2 when it was enabled for L1
RISC-V: KVM: Fix SRCU deadlock caused by kvm_riscv_check_vcpu_requests()
riscv: Fix missing PAGE_PFN_MASK
stable. Most of it is in netfs but I picked it up into ceph tree on
agreement with David.
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Merge tag 'ceph-for-5.19-rc7' of https://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
"A folio locking fixup that Xiubo and David cooperated on, marked for
stable. Most of it is in netfs but I picked it up into ceph tree on
agreement with David"
* tag 'ceph-for-5.19-rc7' of https://github.com/ceph/ceph-client:
netfs: do not unlock and put the folio twice
Most of the contents are bugfixes for the devicetree files:
- A Qualcomm MSM8974 pin controller regression, caused by a cleanup
patch that gets partially reverted here.
- Missing properties for Broadcom BCM49xx to fix timer detection and
SMP boot.
- Fix touchscreen pinctrl for imx6ull-colibri board
- Multiple fixes for Rockchip rk3399 based machines including the
vdu clock-rate fix, otg port fix on Quartz64-A and ethernet
on Quartz64-B
- Fixes for misspelled DT contents causing minor problems on
imx6qdl-ts7970m, orangepi-zero, sama5d2, kontron-kswitch-d10,
and ls1028a
And a couple of changes elsewhere:
- Fix binding for Allwinner D1 display pipeline
- Trivial code fixes to the TEE and reset controller driver subsystems
and the rockchip platform code.
- Multiple updates to the MAINTAINERS files, marking the Palm Treo
support as orphaned, and fixing some entries for added or changed
file names.
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Merge tag 'soc-fixes-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"Most of the contents are bugfixes for the devicetree files:
- A Qualcomm MSM8974 pin controller regression, caused by a cleanup
patch that gets partially reverted here.
- Missing properties for Broadcom BCM49xx to fix timer detection and
SMP boot.
- Fix touchscreen pinctrl for imx6ull-colibri board
- Multiple fixes for Rockchip rk3399 based machines including the vdu
clock-rate fix, otg port fix on Quartz64-A and ethernet on
Quartz64-B
- Fixes for misspelled DT contents causing minor problems on
imx6qdl-ts7970m, orangepi-zero, sama5d2, kontron-kswitch-d10, and
ls1028a
And a couple of changes elsewhere:
- Fix binding for Allwinner D1 display pipeline
- Trivial code fixes to the TEE and reset controller driver
subsystems and the rockchip platform code.
- Multiple updates to the MAINTAINERS files, marking the Palm Treo
support as orphaned, and fixing some entries for added or changed
file names"
* tag 'soc-fixes-5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (21 commits)
arm64: dts: broadcom: bcm4908: Fix cpu node for smp boot
arm64: dts: broadcom: bcm4908: Fix timer node for BCM4906 SoC
ARM: dts: sunxi: Fix SPI NOR campatible on Orange Pi Zero
ARM: dts: at91: sama5d2: Fix typo in i2s1 node
tee: tee_get_drvdata(): fix description of return value
optee: Remove duplicate 'of' in two places.
ARM: dts: kswitch-d10: use open drain mode for coma-mode pins
ARM: dts: colibri-imx6ull: fix snvs pinmux group
optee: smc_abi.c: fix wrong pointer passed to IS_ERR/PTR_ERR()
MAINTAINERS: add polarfire rng, pci and clock drivers
MAINTAINERS: mark ARM/PALM TREO SUPPORT orphan
ARM: dts: imx6qdl-ts7970: Fix ngpio typo and count
arm64: dts: ls1028a: Update SFP node to include clock
dt-bindings: display: sun4i: Fix D1 pipeline count
ARM: dts: qcom: msm8974: re-add missing pinctrl
reset: Fix devm bulk optional exclusive control getter
MAINTAINERS: rectify entry for SYNOPSYS AXS10x RESET CONTROLLER DRIVER
ARM: rockchip: Add missing of_node_put() in rockchip_suspend_init()
arm64: dts: rockchip: Assign RK3399 VDU clock rate
arm64: dts: rockchip: Fix Quartz64-A dwc3 otg port behavior
...
Align the mac80211 implementation with P802.11be_D2.0.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Align the mac80211 implementation with P802.11be_D1.5.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
1) Support 802.1ad for bridge offloads
Vlad Buslov Says:
=================
Current mlx5 bridge VLAN offload implementation only supports 802.1Q VLAN
Ethernet protocol. That protocol type is assumed by default and
SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL notification is ignored.
In order to support dynamically setting VLAN protocol handle
SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL notification by flushing FDB and
re-creating VLAN modify header actions with a new protocol. Implement support
for 802.1ad protocol by saving the current VLAN protocol to per-bridge variable
and re-create the necessary flow groups according to its current value (either
use cvlan or svlan flow fields).
==================
2) debugfs to count ongoing FW commands
3) debugfs to query eswitch vport firmware diagnostic counters
4) Add missing meter configuration in flow action
5) Some misc cleanup
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Merge tag 'mlx5-updates-2022-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2022-07-13
1) Support 802.1ad for bridge offloads
Vlad Buslov Says:
=================
Current mlx5 bridge VLAN offload implementation only supports 802.1Q VLAN
Ethernet protocol. That protocol type is assumed by default and
SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL notification is ignored.
In order to support dynamically setting VLAN protocol handle
SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL notification by flushing FDB and
re-creating VLAN modify header actions with a new protocol. Implement support
for 802.1ad protocol by saving the current VLAN protocol to per-bridge variable
and re-create the necessary flow groups according to its current value (either
use cvlan or svlan flow fields).
==================
2) debugfs to count ongoing FW commands
3) debugfs to query eswitch vport firmware diagnostic counters
4) Add missing meter configuration in flow action
5) Some misc cleanup
* tag 'mlx5-updates-2022-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5e: Remove the duplicating check for striding RQ when enabling LRO
net/mlx5e: Move the LRO-XSK check to mlx5e_fix_features
net/mlx5e: Extend flower police validation
net/mlx5e: configure meter in flow action
net/mlx5e: Removed useless code in function
net/mlx5: Bridge, implement QinQ support
net/mlx5: Bridge, implement infrastructure for VLAN protocol change
net/mlx5: Bridge, extract VLAN push/pop actions creation
net/mlx5: Bridge, rename filter fg to vlan_filter
net/mlx5: Bridge, refactor groups sizes and indices
net/mlx5: debugfs, Add num of in-use FW command interface slots
net/mlx5: Expose vnic diagnostic counters for eswitch managed vports
net/mlx5: Use software VHCA id when it's supported
net/mlx5: Introduce ifc bits for using software vhca id
net/mlx5: Use the bitmap API to allocate bitmaps
====================
Link: https://lore.kernel.org/r/20220713225859.401241-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'integrity-v5.19-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity fixes from Mimi Zohar:
"Here are a number of fixes for recently found bugs.
Only 'ima: fix violation measurement list record' was introduced in
the current release. The rest address existing bugs"
* tag 'integrity-v5.19-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
ima: Fix potential memory leak in ima_init_crypto()
ima: force signature verification when CONFIG_KEXEC_SIG is configured
ima: Fix a potential integer overflow in ima_appraise_measurement
ima: fix violation measurement list record
Revert "evm: Fix memleak in init_desc"
Some of the statistics values exported by KVM are always only 0 or 1.
It can be useful to export this fact to userspace so that it can track
them specially (for example by polling the value every now and then to
compute a % of time spent in a specific state).
Therefore, add "boolean value" as a new "unit". While it is not exactly
a unit, it walks and quacks like one. In particular, using the type
would be wrong because boolean values could be instantaneous or peak
values (e.g. "is the rmap allocated?") or even two-bucket histograms
(e.g. "number of posted vs. non-posted interrupt injections").
Suggested-by: Amneesh Singh <natto@weirdnatto.in>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
check_write_begin() will unlock and put the folio when return
non-zero. So we should avoid unlocking and putting it twice in
netfs layer.
Change the way ->check_write_begin() works in the following two ways:
(1) Pass it a pointer to the folio pointer, allowing it to unlock and put
the folio prior to doing the stuff it wants to do, provided it clears
the folio pointer.
(2) Change the return values such that 0 with folio pointer set means
continue, 0 with folio pointer cleared means re-get and all error
codes indicating an error (no special treatment for -EAGAIN).
[ bagasdotme: use Sphinx code text syntax for *foliop pointer ]
Cc: stable@vger.kernel.org
Link: https://tracker.ceph.com/issues/56423
Link: https://lore.kernel.org/r/cf169f43-8ee7-8697-25da-0204d1b4343e@redhat.com
Co-developed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Use software VHCA id when it's supported by the firmware.
A unique id is allocated upon mlx5_mdev_init() and freed upon
mlx5_mdev_uninit(), as such it stays the same during the full life cycle
of the device including upon health recovery if occurred.
The conjunction of sw_vhca_id with sw_owner_id will be a global unique
id per function which uses mlx5_core.
The sw_vhca_id is set upon init_hca command and is used to specify the
VHCA that the NIC vport is affiliated with.
This functionality is needed upon migration of VM which is MPV based.
(i.e. multi port device).
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Introduce ifc related stuff to enable using software vhca id
functionality.
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This pull request contains the fix for an old and subtle bug in the
migration path. css_sets are used to track tasks and migrations are tasks
moving from a group of css_sets to another group of css_sets. The migration
path pins all source and destination css_sets in the prep stage.
Unfortunately, it was overloading the same list_head entry to track sources
and destinations, which got confused for migrations which are partially
identity leading to use-after-frees. Fixed by using dedicated list_heads for
tracking sources and destinations.
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Merge tag 'cgroup-for-5.19-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo:
"Fix an old and subtle bug in the migration path.
css_sets are used to track tasks and migrations are tasks moving from
a group of css_sets to another group of css_sets. The migration path
pins all source and destination css_sets in the prep stage.
Unfortunately, it was overloading the same list_head entry to track
sources and destinations, which got confused for migrations which are
partially identity leading to use-after-frees.
Fixed by using dedicated list_heads for tracking sources and
destinations"
* tag 'cgroup-for-5.19-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: Use separate src/dst nodes when preloading css_sets for migration
Currently, an unsigned kernel could be kexec'ed when IMA arch specific
policy is configured unless lockdown is enabled. Enforce kernel
signature verification check in the kexec_file_load syscall when IMA
arch specific policy is configured.
Fixes: 99d5cadfde ("kexec_file: split KEXEC_VERIFY_SIG into KEXEC_SIG and KEXEC_SIG_FORCE")
Reported-and-suggested-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Coiby Xu <coxu@redhat.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
ath10k
* ethernet frame format support
rtw89
* TDLS support
cfg80211/mac80211
* airtime fairness fixes
* EHT support continued, especially in AP mode
* initial (and still major) rework for multi-link
operation (MLO) from 802.11be/wifi 7
As usual, also many small updates/cleanups/fixes/etc.
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Merge tag 'wireless-next-2022-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:
====================
A fairly large set of updates for next, highlights:
ath10k
* ethernet frame format support
rtw89
* TDLS support
cfg80211/mac80211
* airtime fairness fixes
* EHT support continued, especially in AP mode
* initial (and still major) rework for multi-link
operation (MLO) from 802.11be/wifi 7
As usual, also many small updates/cleanups/fixes/etc.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
