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Author SHA1 Message Date
Vladimir Oltean
a721c3e54b net/sched: taprio: allow per-TC user input of FP adminStatus 
This is a duplication of the FP adminStatus logic introduced for
tc-mqprio. Offloading is done through the tc_mqprio_qopt_offload
structure embedded within tc_taprio_qopt_offload. So practically, if a
device driver is written to treat the mqprio portion of taprio just like
standalone mqprio, it gets unified handling of frame preemption.

I would have reused more code with taprio, but this is mostly netlink
attribute parsing, which is hard to transform into generic code without
having something that stinks as a result. We have the same variables
with the same semantics, just different nlattr type values
(TCA_MQPRIO_TC_ENTRY=5 vs TCA_TAPRIO_ATTR_TC_ENTRY=12;
TCA_MQPRIO_TC_ENTRY_FP=2 vs TCA_TAPRIO_TC_ENTRY_FP=3, etc) and
consequently, different policies for the nest.

Every time nla_parse_nested() is called, an on-stack table "tb" of
nlattr pointers is allocated statically, up to the maximum understood
nlattr type. That array size is hardcoded as a constant, but when
transforming this into a common parsing function, it would become either
a VLA (which the Linux kernel rightfully doesn't like) or a call to the
allocator.

Having FP adminStatus in tc-taprio can be seen as addressing the 802.1Q
Annex S.3 "Scheduling and preemption used in combination, no HOLD/RELEASE"
and S.4 "Scheduling and preemption used in combination with HOLD/RELEASE"
use cases. HOLD and RELEASE events are emitted towards the underlying
MAC Merge layer when the schedule hits a Set-And-Hold-MAC or a
Set-And-Release-MAC gate operation. So within the tc-taprio UAPI space,
one can distinguish between the 2 use cases by choosing whether to use
the TC_TAPRIO_CMD_SET_AND_HOLD and TC_TAPRIO_CMD_SET_AND_RELEASE gate
operations within the schedule, or just TC_TAPRIO_CMD_SET_GATES.

A small part of the change is dedicated to refactoring the max_sdu
nlattr parsing to put all logic under the "if" that tests for presence
of that nlattr.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ferenc Fejes <fejes@inf.elte.hu>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-04-13 22:22:10 -07:00
Vladimir Oltean
f62af20bed net/sched: mqprio: allow per-TC user input of FP adminStatus 
IEEE 802.1Q-2018 clause 6.7.2 Frame preemption specifies that each
packet priority can be assigned to a "frame preemption status" value of
either "express" or "preemptible". Express priorities are transmitted by
the local device through the eMAC, and preemptible priorities through
the pMAC (the concepts of eMAC and pMAC come from the 802.3 MAC Merge
layer).

The FP adminStatus is defined per packet priority, but 802.1Q clause
12.30.1.1.1 framePreemptionAdminStatus also says that:

| Priorities that all map to the same traffic class should be
| constrained to use the same value of preemption status.

It is impossible to ignore the cognitive dissonance in the standard
here, because it practically means that the FP adminStatus only takes
distinct values per traffic class, even though it is defined per
priority.

I can see no valid use case which is prevented by having the kernel take
the FP adminStatus as input per traffic class (what we do here).
In addition, this also enforces the above constraint by construction.
User space network managers which wish to expose FP adminStatus per
priority are free to do so; they must only observe the prio_tc_map of
the netdev (which presumably is also under their control, when
constructing the mqprio netlink attributes).

The reason for configuring frame preemption as a property of the Qdisc
layer is that the information about "preemptible TCs" is closest to the
place which handles the num_tc and prio_tc_map of the netdev. If the
UAPI would have been any other layer, it would be unclear what to do
with the FP information when num_tc collapses to 0. A key assumption is
that only mqprio/taprio change the num_tc and prio_tc_map of the netdev.
Not sure if that's a great assumption to make.

Having FP in tc-mqprio can be seen as an implementation of the use case
defined in 802.1Q Annex S.2 "Preemption used in isolation". There will
be a separate implementation of FP in tc-taprio, for the other use
cases.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ferenc Fejes <fejes@inf.elte.hu>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-04-13 22:22:10 -07:00
Jakub Kicinski
c2865b1122 bpf-next-for-netdev 
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Daniel Borkmann says:

====================
pull-request: bpf-next 2023-04-13

We've added 260 non-merge commits during the last 36 day(s) which contain
a total of 356 files changed, 21786 insertions(+), 11275 deletions(-).

The main changes are:

1) Rework BPF verifier log behavior and implement it as a rotating log
   by default with the option to retain old-style fixed log behavior,
   from Andrii Nakryiko.

2) Adds support for using {FOU,GUE} encap with an ipip device operating
   in collect_md mode and add a set of BPF kfuncs for controlling encap
   params, from Christian Ehrig.

3) Allow BPF programs to detect at load time whether a particular kfunc
   exists or not, and also add support for this in light skeleton,
   from Alexei Starovoitov.

4) Optimize hashmap lookups when key size is multiple of 4,
   from Anton Protopopov.

5) Enable RCU semantics for task BPF kptrs and allow referenced kptr
   tasks to be stored in BPF maps, from David Vernet.

6) Add support for stashing local BPF kptr into a map value via
   bpf_kptr_xchg(). This is useful e.g. for rbtree node creation
   for new cgroups, from Dave Marchevsky.

7) Fix BTF handling of is_int_ptr to skip modifiers to work around
   tracing issues where a program cannot be attached, from Feng Zhou.

8) Migrate a big portion of test_verifier unit tests over to
   test_progs -a verifier_* via inline asm to ease {read,debug}ability,
   from Eduard Zingerman.

9) Several updates to the instruction-set.rst documentation
   which is subject to future IETF standardization
   (https://lwn.net/Articles/926882/), from Dave Thaler.

10) Fix BPF verifier in the __reg_bound_offset's 64->32 tnum sub-register
    known bits information propagation, from Daniel Borkmann.

11) Add skb bitfield compaction work related to BPF with the overall goal
    to make more of the sk_buff bits optional, from Jakub Kicinski.

12) BPF selftest cleanups for build id extraction which stand on its own
    from the upcoming integration work of build id into struct file object,
    from Jiri Olsa.

13) Add fixes and optimizations for xsk descriptor validation and several
    selftest improvements for xsk sockets, from Kal Conley.

14) Add BPF links for struct_ops and enable switching implementations
    of BPF TCP cong-ctls under a given name by replacing backing
    struct_ops map, from Kui-Feng Lee.

15) Remove a misleading BPF verifier env->bypass_spec_v1 check on variable
    offset stack read as earlier Spectre checks cover this,
    from Luis Gerhorst.

16) Fix issues in copy_from_user_nofault() for BPF and other tracers
    to resemble copy_from_user_nmi() from safety PoV, from Florian Lehner
    and Alexei Starovoitov.

17) Add --json-summary option to test_progs in order for CI tooling to
    ease parsing of test results, from Manu Bretelle.

18) Batch of improvements and refactoring to prep for upcoming
    bpf_local_storage conversion to bpf_mem_cache_{alloc,free} allocator,
    from Martin KaFai Lau.

19) Improve bpftool's visual program dump which produces the control
    flow graph in a DOT format by adding C source inline annotations,
    from Quentin Monnet.

20) Fix attaching fentry/fexit/fmod_ret/lsm to modules by extracting
    the module name from BTF of the target and searching kallsyms of
    the correct module, from Viktor Malik.

21) Improve BPF verifier handling of '<const> <cond> <non_const>'
    to better detect whether in particular jmp32 branches are taken,
    from Yonghong Song.

22) Allow BPF TCP cong-ctls to write app_limited of struct tcp_sock.
    A built-in cc or one from a kernel module is already able to write
    to app_limited, from Yixin Shen.

Conflicts:

Documentation/bpf/bpf_devel_QA.rst
  b7abcd9c65 ("bpf, doc: Link to submitting-patches.rst for general patch submission info")
  0f10f647f4 ("bpf, docs: Use internal linking for link to netdev subsystem doc")
https://lore.kernel.org/all/20230307095812.236eb1be@canb.auug.org.au/

include/net/ip_tunnels.h
  bc9d003dc4 ("ip_tunnel: Preserve pointer const in ip_tunnel_info_opts")
  ac931d4cde ("ipip,ip_tunnel,sit: Add FOU support for externally controlled ipip devices")
https://lore.kernel.org/all/20230413161235.4093777-1-broonie@kernel.org/

net/bpf/test_run.c
  e5995bc7e2 ("bpf, test_run: fix crashes due to XDP frame overwriting/corruption")
  294635a816 ("bpf, test_run: fix &xdp_frame misplacement for LIVE_FRAMES")
https://lore.kernel.org/all/20230320102619.05b80a98@canb.auug.org.au/
====================

Link: https://lore.kernel.org/r/20230413191525.7295-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-04-13 16:43:38 -07:00
Jakub Kicinski
800e68c44f Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Conflicts:

tools/testing/selftests/net/config
  62199e3f16 ("selftests: net: Add VXLAN MDB test")
  3a0385be13 ("selftests: add the missing CONFIG_IP_SCTP in net config")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-04-13 16:04:28 -07:00
Andrii Nakryiko
47a71c1f9a bpf: Add log_true_size output field to return necessary log buffer size 
Add output-only log_true_size and btf_log_true_size field to
BPF_PROG_LOAD and BPF_BTF_LOAD commands, respectively. It will return
the size of log buffer necessary to fit in all the log contents at
specified log_level. This is very useful for BPF loader libraries like
libbpf to be able to size log buffer correctly, but could be used by
users directly, if necessary, as well.

This patch plumbs all this through the code, taking into account actual
bpf_attr size provided by user to determine if these new fields are
expected by users. And if they are, set them from kernel on return.

We refactory btf_parse() function to accommodate this, moving attr and
uattr handling inside it. The rest is very straightforward code, which
is split from the logging accounting changes in the previous patch to
make it simpler to review logic vs UAPI changes.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Lorenz Bauer <lmb@isovalent.com>
Link: https://lore.kernel.org/bpf/20230406234205.323208-13-andrii@kernel.org
 2023-04-11 18:05:43 +02:00
Dmitry Fomichev
f1ba4e674f virtio-blk: fix to match virtio spec 
The merged patch series to support zoned block devices in virtio-blk
is not the most up to date version. The merged patch can be found at

https://lore.kernel.org/linux-block/20221016034127.330942-3-dmitry.fomichev@wdc.com/

but the latest and reviewed version is

https://lore.kernel.org/linux-block/20221110053952.3378990-3-dmitry.fomichev@wdc.com/

The reason is apparently that the correct mailing lists and
maintainers were not copied.

The differences between the two are mostly cleanups, but there is one
change that is very important in terms of compatibility with the
approved virtio-zbd specification.

Before it was approved, the OASIS virtio spec had a change in
VIRTIO_BLK_T_ZONE_APPEND request layout that is not reflected in the
current virtio-blk driver code. In the running code, the status is
the first byte of the in-header that is followed by some pad bytes
and the u64 that carries the sector at which the data has been written
to the zone back to the driver, aka the append sector.

This layout turned out to be problematic for implementing in QEMU and
the request status byte has been eventually made the last byte of the
in-header. The current code doesn't expect that and this causes the
append sector value always come as zero to the block layer. This needs
to be fixed ASAP.

Fixes: 95bfec41bd ("virtio-blk: add support for zoned block devices")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Message-Id: <20230330214953.1088216-2-dmitry.fomichev@wdc.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2023-04-04 11:01:57 -04:00
Jakub Kicinski
54fd494af9 netfilter updates for net-next 
1. No need to disable BH in nfnetlink proc handler, freeing happens
    via call_rcu.
 2. Expose classid in nfetlink_queue, from Eric Sage.
 3. Fix nfnetlink message description comments, from Matthieu De Beule.
 4. Allow removal of offloaded connections via ctnetlink, from Paul Blakey.
 
 Signed-off-by: Florian Westphal <fw@strlen.de>
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Merge tag 'nf-next-2023-03-30' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next

Florian Westphal says:

====================
netfilter updates for net-next

1. No need to disable BH in nfnetlink proc handler, freeing happens
   via call_rcu.
2. Expose classid in nfetlink_queue, from Eric Sage.
3. Fix nfnetlink message description comments, from Matthieu De Beule.
4. Allow removal of offloaded connections via ctnetlink, from Paul Blakey.

* tag 'nf-next-2023-03-30' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: ctnetlink: Support offloaded conntrack entry deletion
  netfilter: Correct documentation errors in nf_tables.h
  netfilter: nfnetlink_queue: enable classid socket info retrieval
  netfilter: nfnetlink_log: remove rcu_bh usage
====================

Link: https://lore.kernel.org/r/20230331104809.2959-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-31 10:39:33 -07:00
Jakub Kicinski
ce7928f7cf Major stack changes: 
* TC offload support for drivers below mac80211
  * reduced neighbor report (RNR) handling for AP mode
  * mac80211 mesh fast-xmit and fast-rx support
  * support for another mesh A-MSDU format
    (seems nobody got the spec right)
 
 Major driver changes:
 
 Kalle moved the drivers that were just plain C files
 in drivers/net/wireless/ to legacy/ and virtual/ dirs.
 
 hwsim
  * multi-BSSID support
  * some FTM support
 
 ath11k
  * MU-MIMO parameters support
  * ack signal support for management packets
 
 rtl8xxxu
  * support for RTL8710BU aka RTL8188GU chips
 
 rtw89
  * support for various newer firmware APIs
 
 ath10k
  * enabled threaded NAPI on WCN3990
 
 iwlwifi
  * lots of work for multi-link/EHT (wifi7)
  * hardware timestamping support for some devices/firwmares
  * TX beacon protection on newer hardware
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Merge tag 'wireless-next-2023-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Johannes Berg says:

====================
Major stack changes:

 * TC offload support for drivers below mac80211
 * reduced neighbor report (RNR) handling for AP mode
 * mac80211 mesh fast-xmit and fast-rx support
 * support for another mesh A-MSDU format
   (seems nobody got the spec right)

Major driver changes:

Kalle moved the drivers that were just plain C files
in drivers/net/wireless/ to legacy/ and virtual/ dirs.

hwsim
 * multi-BSSID support
 * some FTM support

ath11k
 * MU-MIMO parameters support
 * ack signal support for management packets

rtl8xxxu
 * support for RTL8710BU aka RTL8188GU chips

rtw89
 * support for various newer firmware APIs

ath10k
 * enabled threaded NAPI on WCN3990

iwlwifi
 * lots of work for multi-link/EHT (wifi7)
 * hardware timestamping support for some devices/firwmares
 * TX beacon protection on newer hardware

* tag 'wireless-next-2023-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (181 commits)
  wifi: clean up erroneously introduced file
  wifi: iwlwifi: mvm: correctly use link in iwl_mvm_sta_del()
  wifi: iwlwifi: separate AP link management queues
  wifi: iwlwifi: mvm: free probe_resp_data later
  wifi: iwlwifi: bump FW API to 75 for AX devices
  wifi: iwlwifi: mvm: move max_agg_bufsize into host TLC lq_sta
  wifi: iwlwifi: mvm: send full STA during HW restart
  wifi: iwlwifi: mvm: rework active links counting
  wifi: iwlwifi: mvm: update mac config when assigning chanctx
  wifi: iwlwifi: mvm: use the correct link queue
  wifi: iwlwifi: mvm: clean up mac_id vs. link_id in MLD sta
  wifi: iwlwifi: mvm: fix station link data leak
  wifi: iwlwifi: mvm: initialize max_rc_amsdu_len per-link
  wifi: iwlwifi: mvm: use appropriate link for rate selection
  wifi: iwlwifi: mvm: use the new lockdep-checking macros
  wifi: iwlwifi: mvm: remove chanctx WARN_ON
  wifi: iwlwifi: mvm: avoid sending MAC context for idle
  wifi: iwlwifi: mvm: remove only link-specific AP keys
  wifi: iwlwifi: mvm: skip inactive links
  wifi: iwlwifi: mvm: adjust iwl_mvm_scan_respect_p2p_go_iter() for MLO
  ...
====================

Link: https://lore.kernel.org/r/20230330205612.921134-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-30 23:52:20 -07:00
Davide Caratti
2384127e98 net/sched: act_tunnel_key: add support for "don't fragment" 
extend "act_tunnel_key" to allow specifying TUNNEL_DONT_FRAGMENT.

Suggested-by: Ilya Maximets <i.maximets@ovn.org>
Reviewed-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-30 23:24:24 -07:00
Matthieu De Beule
a25b8b7136 netfilter: Correct documentation errors in nf_tables.h 
NFTA_RANGE_OP incorrectly says nft_cmp_ops instead of nft_range_ops.
NFTA_LOG_GROUP and NFTA_LOG_QTHRESHOLD claim NLA_U32 instead of NLA_U16
NFTA_EXTHDR_SREG isn't documented as a register

Signed-off-by: Matthieu De Beule <matthieu.debeule@proton.ch>
Signed-off-by: Florian Westphal <fw@strlen.de>
 2023-03-30 22:20:09 +02:00
Eric Sage
28c1b6df43 netfilter: nfnetlink_queue: enable classid socket info retrieval 
This enables associating a socket with a v1 net_cls cgroup. Useful for
applying a per-cgroup policy when processing packets in userspace.

Signed-off-by: Eric Sage <eric_sage@apple.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
 2023-03-30 22:20:09 +02:00
Kieran Frewen
9a8aac92eb wifi: nl80211: support advertising S1G capabilities 
Include S1G capabilities in netlink band info messages.

Signed-off-by: Kieran Frewen <kieran.frewen@morsemicro.com>
Co-developed-by: Gilad Itzkovitch <gilad.itzkovitch@morsemicro.com>
Signed-off-by: Gilad Itzkovitch <gilad.itzkovitch@morsemicro.com>
Link: https://lore.kernel.org/r/20230223212917.4010246-1-gilad.itzkovitch@virscient.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-03-30 12:02:59 +02:00
Herbert Xu
954d1fa1ac macvlan: Add netlink attribute for broadcast cutoff 
Make the broadcast cutoff configurable through netlink.  Note
that macvlan is weird because there is no central device for
us to configure (the lowerdev could be anything).  So all the
options are duplicated over what could be thousands of child
devices.

IFLA_MACVLAN_BC_QUEUE_LEN took the approach of taking the maximum
of all child device settings.  This is unnecessary as we could
simply store the option in the port device and take the last
child device that gets updated as the value to use.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2023-03-29 09:03:32 +01:00
Shay Agroskin
233eb4e786 ethtool: Add support for configuring tx_push_buf_len 
This attribute, which is part of ethtool's ring param configuration
allows the user to specify the maximum number of the packet's payload
that can be written directly to the device.

Example usage:
    # ethtool -G [interface] tx-push-buf-len [number of bytes]

Co-developed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-27 19:49:58 -07:00
Aloka Dixit
dbbb27e183 cfg80211: support RNR for EMA AP 
As per IEEE Std 802.11ax-2021, 11.1.3.8.3 Discovery of a nontransmitted
BSSID profile, an EMA AP that transmits a Beacon frame carrying a partial
list of nontransmitted BSSID profiles should include in the frame
a Reduced Neighbor Report element carrying information for at least the
nontransmitted BSSIDs that are not present in the Multiple BSSID element
carried in that frame.
Add new nested attribute NL80211_ATTR_EMA_RNR_ELEMS to support the above.
Number of RNR elements must be more than or equal to the number of
MBSSID elements. This attribute can be used only when EMA is enabled.
Userspace is responsible for splitting the RNR into multiple elements such
that each element excludes the non-transmitting profiles already included
in the MBSSID element (%NL80211_ATTR_MBSSID_ELEMS) at the same index.
Each EMA beacon will be generated by adding MBSSID and RNR elements
at the same index. If the userspace provides more RNR elements than the
number of MBSSID elements then these will be added in every EMA beacon.

Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Link: https://lore.kernel.org/r/20230323113801.6903-2-quic_alokad@quicinc.com
[Johannes: validate elements]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-03-24 11:12:48 +01:00
Kui-Feng Lee
aef56f2e91 bpf: Update the struct_ops of a bpf_link. 
By improving the BPF_LINK_UPDATE command of bpf(), it should allow you
to conveniently switch between different struct_ops on a single
bpf_link. This would enable smoother transitions from one struct_ops
to another.

The struct_ops maps passing along with BPF_LINK_UPDATE should have the
BPF_F_LINK flag.

Signed-off-by: Kui-Feng Lee <kuifeng@meta.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20230323032405.3735486-6-kuifeng@meta.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
 2023-03-22 22:53:02 -07:00
Kui-Feng Lee
68b04864ca bpf: Create links for BPF struct_ops maps. 
Make bpf_link support struct_ops.  Previously, struct_ops were always
used alone without any associated links. Upon updating its value, a
struct_ops would be activated automatically. Yet other BPF program
types required to make a bpf_link with their instances before they
could become active. Now, however, you can create an inactive
struct_ops, and create a link to activate it later.

With bpf_links, struct_ops has a behavior similar to other BPF program
types. You can pin/unpin them from their links and the struct_ops will
be deactivated when its link is removed while previously need someone
to delete the value for it to be deactivated.

bpf_links are responsible for registering their associated
struct_ops. You can only use a struct_ops that has the BPF_F_LINK flag
set to create a bpf_link, while a structs without this flag behaves in
the same manner as before and is registered upon updating its value.

The BPF_LINK_TYPE_STRUCT_OPS serves a dual purpose. Not only is it
used to craft the links for BPF struct_ops programs, but also to
create links for BPF struct_ops them-self.  Since the links of BPF
struct_ops programs are only used to create trampolines internally,
they are never seen in other contexts. Thus, they can be reused for
struct_ops themself.

To maintain a reference to the map supporting this link, we add
bpf_struct_ops_link as an additional type. The pointer of the map is
RCU and won't be necessary until later in the patchset.

Signed-off-by: Kui-Feng Lee <kuifeng@meta.com>
Link: https://lore.kernel.org/r/20230323032405.3735486-4-kuifeng@meta.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
 2023-03-22 22:53:02 -07:00
Manikanta Pubbisetty
8e40c3b6e1 wifi: nl80211: Update the documentation of NL80211_SCAN_FLAG_COLOCATED_6GHZ 
Currently when NL80211_SCAN_FLAG_COLOCATED_6GHZ is set in the scan flags,
in addition to the co-located APs, PSC channels in the 6 GHz band would
also be scanned if the user space has asked for it. In other words, the
scan would happen on PSC channels & co-located 6 GHz channels that were
reported in the RNR IE.

Update the documentation of NL80211_SCAN_FLAG_COLOCATED_6GHZ flag to
reflect the above said behavior.

Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Link: https://lore.kernel.org/r/20230308104556.9399-1-quic_mpubbise@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-03-22 13:31:19 +01:00
Jakub Kicinski
1118aa4c70 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
net/wireless/nl80211.c
  b27f07c50a ("wifi: nl80211: fix puncturing bitmap policy")
  cbbaf2bb82 ("wifi: nl80211: add a command to enable/disable HW timestamping")
https://lore.kernel.org/all/20230314105421.3608efae@canb.auug.org.au

tools/testing/selftests/net/Makefile
  62199e3f16 ("selftests: net: Add VXLAN MDB test")
  13715acf8a ("selftest: Add test for bind() conflicts.")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-17 16:29:25 -07:00
Linus Torvalds
478a351ce0 Including fixes from netfilter, wifi and ipsec. 
Current release - regressions:
 
  - phy: mscc: fix deadlock in phy_ethtool_{get,set}_wol()
 
  - virtio: vsock: don't use skbuff state to account credit
 
  - virtio: vsock: don't drop skbuff on copy failure
 
  - virtio_net: fix page_to_skb() miscalculating the memory size
 
 Current release - new code bugs:
 
  - eth: correct xdp_features after device reconfig
 
  - wifi: nl80211: fix the puncturing bitmap policy
 
  - net/mlx5e: flower:
    - fix raw counter initialization
    - fix missing error code
    - fix cloned flow attribute
 
  - ipa:
    - fix some register validity checks
    - fix a surprising number of bad offsets
    - kill FILT_ROUT_CACHE_CFG IPA register
 
 Previous releases - regressions:
 
  - tcp: fix bind() conflict check for dual-stack wildcard address
 
  - veth: fix use after free in XDP_REDIRECT when skb headroom is small
 
  - ipv4: fix incorrect table ID in IOCTL path
 
  - ipvlan: make skb->skb_iif track skb->dev for l3s mode
 
  - mptcp:
   - fix possible deadlock in subflow_error_report
   - fix UaFs when destroying unaccepted and listening sockets
 
  - dsa: mv88e6xxx: fix max_mtu of 1492 on 6165, 6191, 6220, 6250, 6290
 
 Previous releases - always broken:
 
  - tcp: tcp_make_synack() can be called from process context,
    don't assume preemption is disabled when updating stats
 
  - netfilter: correct length for loading protocol registers
 
  - virtio_net: add checking sq is full inside xdp xmit
 
  - bonding: restore IFF_MASTER/SLAVE flags on bond enslave
    Ethertype change
 
  - phy: nxp-c45-tja11xx: fix MII_BASIC_CONFIG_REV bit number
 
  - eth: i40e: fix crash during reboot when adapter is in recovery mode
 
  - eth: ice: avoid deadlock on rtnl lock when auxiliary device
    plug/unplug meets bonding
 
  - dsa: mt7530:
    - remove now incorrect comment regarding port 5
    - set PLL frequency and trgmii only when trgmii is used
 
  - eth: mtk_eth_soc: reset PCS state when changing interface types
 
 Misc:
 
  - ynl: another license adjustment
 
  - move the TCA_EXT_WARN_MSG attribute for tc action
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter, wifi and ipsec.

  A little more changes than usual, but it's pretty normal for us that
  the rc3/rc4 PRs are oversized as people start testing in earnest.

  Possibly an extra boost from people deploying the 6.1 LTS but that's
  more of an unscientific hunch.

  Current release - regressions:

   - phy: mscc: fix deadlock in phy_ethtool_{get,set}_wol()

   - virtio: vsock: don't use skbuff state to account credit

   - virtio: vsock: don't drop skbuff on copy failure

   - virtio_net: fix page_to_skb() miscalculating the memory size

  Current release - new code bugs:

   - eth: correct xdp_features after device reconfig

   - wifi: nl80211: fix the puncturing bitmap policy

   - net/mlx5e: flower:
      - fix raw counter initialization
      - fix missing error code
      - fix cloned flow attribute

   - ipa:
      - fix some register validity checks
      - fix a surprising number of bad offsets
      - kill FILT_ROUT_CACHE_CFG IPA register

  Previous releases - regressions:

   - tcp: fix bind() conflict check for dual-stack wildcard address

   - veth: fix use after free in XDP_REDIRECT when skb headroom is small

   - ipv4: fix incorrect table ID in IOCTL path

   - ipvlan: make skb->skb_iif track skb->dev for l3s mode

   - mptcp:
      - fix possible deadlock in subflow_error_report
      - fix UaFs when destroying unaccepted and listening sockets

   - dsa: mv88e6xxx: fix max_mtu of 1492 on 6165, 6191, 6220, 6250, 6290

  Previous releases - always broken:

   - tcp: tcp_make_synack() can be called from process context, don't
     assume preemption is disabled when updating stats

   - netfilter: correct length for loading protocol registers

   - virtio_net: add checking sq is full inside xdp xmit

   - bonding: restore IFF_MASTER/SLAVE flags on bond enslave Ethertype
     change

   - phy: nxp-c45-tja11xx: fix MII_BASIC_CONFIG_REV bit number

   - eth: i40e: fix crash during reboot when adapter is in recovery mode

   - eth: ice: avoid deadlock on rtnl lock when auxiliary device
     plug/unplug meets bonding

   - dsa: mt7530:
      - remove now incorrect comment regarding port 5
      - set PLL frequency and trgmii only when trgmii is used

   - eth: mtk_eth_soc: reset PCS state when changing interface types

  Misc:

   - ynl: another license adjustment

   - move the TCA_EXT_WARN_MSG attribute for tc action"

* tag 'net-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits)
  selftests: bonding: add tests for ether type changes
  bonding: restore bond's IFF_SLAVE flag if a non-eth dev enslave fails
  bonding: restore IFF_MASTER/SLAVE flags on bond enslave ether type change
  net: renesas: rswitch: Fix GWTSDIE register handling
  net: renesas: rswitch: Fix the output value of quote from rswitch_rx()
  ethernet: sun: add check for the mdesc_grab()
  net: ipa: fix some register validity checks
  net: ipa: kill FILT_ROUT_CACHE_CFG IPA register
  net: ipa: add two missing declarations
  net: ipa: reg: include <linux/bug.h>
  net: xdp: don't call notifiers during driver init
  net/sched: act_api: add specific EXT_WARN_MSG for tc action
  Revert "net/sched: act_api: move TCA_EXT_WARN_MSG to the correct hierarchy"
  net: dsa: microchip: fix RGMII delay configuration on KSZ8765/KSZ8794/KSZ8795
  ynl: make the tooling check the license
  ynl: broaden the license even more
  tools: ynl: make definitions optional again
  hsr: ratelimit only when errors are printed
  qed/qed_mng_tlv: correctly zero out ->min instead of ->hour
  selftests: net: devlink_port_split.py: skip test if no suitable device available
  ...
 2023-03-17 13:31:16 -07:00
Ido Schimmel
a3a48de5ea vxlan: mdb: Add MDB control path support 
Implement MDB control path support, enabling the creation, deletion,
replacement and dumping of MDB entries in a similar fashion to the
bridge driver. Unlike the bridge driver, each entry stores a list of
remote VTEPs to which matched packets need to be replicated to and not a
list of bridge ports.

The motivating use case is the installation of MDB entries by a user
space control plane in response to received EVPN routes. As such, only
allow permanent MDB entries to be installed and do not implement
snooping functionality, avoiding a lot of unnecessary complexity.

Since entries can only be modified by user space under RTNL, use RTNL as
the write lock. Use RCU to ensure that MDB entries and remotes are not
freed while being accessed from the data path during transmission.

In terms of uAPI, reuse the existing MDB netlink interface, but add a
few new attributes to request and response messages:

* IP address of the destination VXLAN tunnel endpoint where the
  multicast receivers reside.

* UDP destination port number to use to connect to the remote VXLAN
  tunnel endpoint.

* VXLAN VNI Network Identifier to use to connect to the remote VXLAN
  tunnel endpoint. Required when Ingress Replication (IR) is used and
  the remote VTEP is not a member of originating broadcast domain
  (VLAN/VNI) [1].

* Source VNI Network Identifier the MDB entry belongs to. Used only when
  the VXLAN device is in external mode.

* Interface index of the outgoing interface to reach the remote VXLAN
  tunnel endpoint. This is required when the underlay destination IP is
  multicast (P2MP), as the multicast routing tables are not consulted.

All the new attributes are added under the 'MDBA_SET_ENTRY_ATTRS' nest
which is strictly validated by the bridge driver, thereby automatically
rejecting the new attributes.

[1] https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-irb-mcast#section-3.2.2

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2023-03-17 08:05:49 +00:00
Hangbin Liu
2f59823fe6 net/sched: act_api: add specific EXT_WARN_MSG for tc action 
In my previous commit 0349b8779c ("sched: add new attr TCA_EXT_WARN_MSG
to report tc extact message") I didn't notice the tc action use different
enum with filter. So we can't use TCA_EXT_WARN_MSG directly for tc action.
Let's add a TCA_ROOT_EXT_WARN_MSG for tc action specifically and put this
param before going to the TCA_ACT_TAB nest.

Fixes: 0349b8779c ("sched: add new attr TCA_EXT_WARN_MSG to report tc extact message")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-16 21:25:45 -07:00
Jakub Kicinski
4e16b6a748 ynl: broaden the license even more 
I relicensed Netlink spec code to GPL-2.0 OR BSD-3-Clause but
we still put a slightly different license on the uAPI header
than the rest of the code. Use the Linux-syscall-note on all
the specs and all generated code. It's moot for kernel code,
but should not hurt. This way the licenses match everywhere.

Cc: Chuck Lever <chuck.lever@oracle.com>
Fixes: 37d9df224d ("ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause")
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-16 21:20:32 -07:00
Ross Zwisler
27d7fdf06f bpf: use canonical ftrace path 
The canonical location for the tracefs filesystem is at /sys/kernel/tracing.

But, from Documentation/trace/ftrace.rst:

  Before 4.1, all ftrace tracing control files were within the debugfs
  file system, which is typically located at /sys/kernel/debug/tracing.
  For backward compatibility, when mounting the debugfs file system,
  the tracefs file system will be automatically mounted at:

  /sys/kernel/debug/tracing

Many comments and samples in the bpf code still refer to this older
debugfs path, so let's update them to avoid confusion.  There are a few
spots where the bpf code explicitly checks both tracefs and debugfs
(tools/bpf/bpftool/tracelog.c and tools/lib/api/fs/fs.c) and I've left
those alone so that the tools can continue to work with both paths.

Signed-off-by: Ross Zwisler <zwisler@google.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20230313205628.1058720-2-zwisler@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2023-03-13 21:51:30 -07:00
Jiri Pirko
be50da3e9d net: virtio_net: implement exact header length guest feature 
Virtio spec introduced a feature VIRTIO_NET_F_GUEST_HDRLEN which when
set implicates that device benefits from knowing the exact size
of the header. For compatibility, to signal to the device that
the header is reliable driver also needs to set this feature.
Without this feature set by driver, device has to figure
out the header size itself.

Quoting the original virtio spec:
"hdr_len is a hint to the device as to how much of the header needs to
 be kept to copy into each packet"

"a hint" might not be clear for the reader what does it mean, if it is
"maybe like that" of "exactly like that". This feature just makes it
crystal clear and let the device count on the hdr_len being filled up
by the exact length of header.

Also note the spec already has following note about hdr_len:
"Due to various bugs in implementations, this field is not useful
 as a guarantee of the transport header size."

Without this feature the device needs to parse the header in core
data path handling. Accurate information helps the device to eliminate
such header parsing and directly use the hardware accelerators
for GSO operation.

virtio_net_hdr_from_skb() fills up hdr_len to skb_headlen(skb).
The driver already complies to fill the correct value. Introduce the
feature and advertise it.

Note that virtio spec also includes following note for device
implementation:
"Caution should be taken by the implementation so as to prevent
 a malicious driver from attacking the device by setting
 an incorrect hdr_len."

There is a plan to support this feature in our emulated device.
A device of SolidRun offers this feature bit. They claim this feature
will save the device a few cycles for every GSO packet.

Link: https://docs.oasis-open.org/virtio/virtio/v1.2/cs01/virtio-v1.2-cs01.html#x1-230006x3
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Alvaro Karsz <alvaro.karsz@solid-run.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20230309094559.917857-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-13 16:32:16 -07:00
Lorenzo Bianconi
f85949f982 xdp: add xdp_set_features_flag utility routine 
Introduce xdp_set_features_flag utility routine in order to update
dynamically xdp_features according to the dynamic hw configuration via
ethtool (e.g. changing number of hw rx/tx queues).
Add xdp_clear_features_flag() in order to clear all xdp_feature flag.

Reviewed-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-10 21:33:47 -08:00
Jakub Kicinski
2af560e5a5 wireless-next patches for 6.4 
Major changes:
 
 cfg80211
  * 6 GHz improvements
  * HW timestamping support
  * support for randomized auth/deauth TA for PASN privacy
    (also for mac80211)
 
 mac80211
  * radiotap TLV and EHT support for the iwlwifi sniffer
  * HW timestamping support
  * per-link debugfs for multi-link
 
 brcmfmac
  * support for Apple (M1 Pro/Max) devices
 
 iwlwifi
  * support for a few new devices
  * EHT sniffer support
 
 rtw88
  * better support for some SDIO devices
    (e.g. MAC address from efuse)
 
 rtw89
  * HW scan support for 8852b
  * better support for 6 GHz scanning
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Merge tag 'wireless-next-2023-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Johannes Berg says:

====================
wireless-next patches for 6.4

Major changes:

cfg80211
 * 6 GHz improvements
 * HW timestamping support
 * support for randomized auth/deauth TA for PASN privacy
   (also for mac80211)

mac80211
 * radiotap TLV and EHT support for the iwlwifi sniffer
 * HW timestamping support
 * per-link debugfs for multi-link

brcmfmac
 * support for Apple (M1 Pro/Max) devices

iwlwifi
 * support for a few new devices
 * EHT sniffer support

rtw88
 * better support for some SDIO devices
   (e.g. MAC address from efuse)

rtw89
 * HW scan support for 8852b
 * better support for 6 GHz scanning

* tag 'wireless-next-2023-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (84 commits)
  wifi: iwlwifi: mvm: fix EOF bit reporting
  wifi: iwlwifi: Do not include radiotap EHT user info if not needed
  wifi: iwlwifi: mvm: add EHT RU allocation to radiotap
  wifi: iwlwifi: Update logs for yoyo reset sw changes
  wifi: iwlwifi: mvm: clean up duplicated defines
  wifi: iwlwifi: rs-fw: break out for unsupported bandwidth
  wifi: iwlwifi: Add support for B step of BnJ-Fm4
  wifi: iwlwifi: mvm: make flush code a bit clearer
  wifi: iwlwifi: mvm: avoid UB shift of snif_queue
  wifi: iwlwifi: mvm: add primary 80 known for EHT radiotap
  wifi: iwlwifi: mvm: parse FW frame metadata for EHT sniffer mode
  wifi: iwlwifi: mvm: decode USIG_B1_B7 RU to nl80211 RU width
  wifi: iwlwifi: mvm: rename define to generic name
  wifi: iwlwifi: mvm: allow Microsoft to use TAS
  wifi: iwlwifi: mvm: add all EHT based on data0 info from HW
  wifi: iwlwifi: mvm: add EHT radiotap info based on rate_n_flags
  wifi: iwlwifi: mvm: add an helper function radiotap TLVs
  wifi: radiotap: separate vendor TLV into header/content
  wifi: iwlwifi: reduce verbosity of some logging events
  wifi: iwlwifi: Adding the code to get RF name for MsP device
  ...
====================

Link: https://lore.kernel.org/r/20230310120159.36518-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-10 18:22:29 -08:00
Linus Torvalds
ae195ca1a8 for-6.3-rc1-tag 
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Merge tag 'for-6.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "First batch of fixes. Among them there are two updates to sysfs and
  ioctl which are not strictly fixes but are used for testing so there's
  no reason to delay them.

   - fix block group item corruption after inserting new block group

   - fix extent map logging bit not cleared for split maps after
     dropping range

   - fix calculation of unusable block group space reporting bogus
     values due to 32/64b division

   - fix unnecessary increment of read error stat on write error

   - improve error handling in inode update

   - export per-device fsid in DEV_INFO ioctl to distinguish seeding
     devices, needed for testing

   - allocator size classes:
      - fix potential dead lock in size class loading logic
      - print sysfs stats for the allocation classes"

* tag 'for-6.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix block group item corruption after inserting new block group
  btrfs: fix extent map logging bit not cleared for split maps after dropping range
  btrfs: fix percent calculation for bg reclaim message
  btrfs: fix unnecessary increment of read error stat on write error
  btrfs: handle btrfs_del_item errors in __btrfs_update_delayed_inode
  btrfs: ioctl: return device fsid from DEV_INFO ioctl
  btrfs: fix potential dead lock in size class loading logic
  btrfs: sysfs: add size class stats
 2023-03-10 08:39:13 -08:00
Jakub Kicinski
d0928c1c5b Merge branch 'main' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next 
Florian Westphal says:

====================
Netfilter updates for net-next

1. nf_tables 'brouting' support, from Sriram Yagnaraman.

2. Update bridge netfilter and ovs conntrack helpers to handle
   IPv6 Jumbo packets properly, i.e. fetch the packet length
   from hop-by-hop extension header, from Xin Long.

   This comes with a test BIG TCP test case, added to
   tools/testing/selftests/net/.

3. Fix spelling and indentation in conntrack, from Jeremy Sowden.

* 'main' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: nat: fix indentation of function arguments
  netfilter: conntrack: fix typo
  selftests: add a selftest for big tcp
  netfilter: use nf_ip6_check_hbh_len in nf_ct_skb_network_trim
  netfilter: move br_nf_check_hbh_len to utils
  netfilter: bridge: move pskb_trim_rcsum out of br_nf_check_hbh_len
  netfilter: bridge: check len before accessing more nh data
  netfilter: bridge: call pskb_may_pull in br_nf_check_hbh_len
  netfilter: bridge: introduce broute meta statement
====================

Link: https://lore.kernel.org/r/20230308193033.13965-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-09 23:28:53 -08:00
Jakub Kicinski
d0ddf5065f Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Documentation/bpf/bpf_devel_QA.rst
  b7abcd9c65 ("bpf, doc: Link to submitting-patches.rst for general patch submission info")
  d56b0c461d ("bpf, docs: Fix link to netdev-FAQ target")
https://lore.kernel.org/all/20230307095812.236eb1be@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-09 22:22:11 -08:00
Michael Weiß
5a70f4a630 bpf: Fix a typo for BPF_F_ANY_ALIGNMENT in bpf.h 
Fix s/BPF_PROF_LOAD/BPF_PROG_LOAD/ typo in the documentation comment
for BPF_F_ANY_ALIGNMENT in bpf.h.

Signed-off-by: Michael Weiß <michael.weiss@aisec.fraunhofer.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230309133823.944097-1-michael.weiss@aisec.fraunhofer.de
 2023-03-09 20:42:57 +01:00
Linus Torvalds
44889ba56c Networking fixes for 6.3-rc2, including fixes from netfilter, bpf 
Current release - regressions:
 
   - core: avoid skb end_offset change in __skb_unclone_keeptruesize()
 
   - sched:
     - act_connmark: handle errno on tcf_idr_check_alloc
     - flower: fix fl_change() error recovery path
 
   - ieee802154: prevent user from crashing the host
 
 Current release - new code bugs:
 
   - eth: bnxt_en: fix the double free during device removal
 
   - tools: ynl:
     - fix enum-as-flags in the generic CLI
     - fully inherit attrs in subsets
     - re-license uniformly under GPL-2.0 or BSD-3-clause
 
 Previous releases - regressions:
 
   - core: use indirect calls helpers for sk_exit_memory_pressure()
 
   - tls:
     - fix return value for async crypto
     - avoid hanging tasks on the tx_lock
 
   - eth: ice: copy last block omitted in ice_get_module_eeprom()
 
 Previous releases - always broken:
 
   - core: avoid double iput when sock_alloc_file fails
 
   - af_unix: fix struct pid leaks in OOB support
 
   - tls:
     - fix possible race condition
     - fix device-offloaded sendpage straddling records
 
   - bpf:
     - sockmap: fix an infinite loop error
     - test_run: fix &xdp_frame misplacement for LIVE_FRAMES
     - fix resolving BTF_KIND_VAR after ARRAY, STRUCT, UNION, PTR
 
   - netfilter: tproxy: fix deadlock due to missing BH disable
 
   - phylib: get rid of unnecessary locking
 
   - eth: bgmac: fix *initial* chip reset to support BCM5358
 
   - eth: nfp: fix csum for ipsec offload
 
   - eth: mtk_eth_soc: fix RX data corruption issue
 
 Misc:
 
   - usb: qmi_wwan: add telit 0x1080 composition
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter and bpf.

  Current release - regressions:

   - core: avoid skb end_offset change in __skb_unclone_keeptruesize()

   - sched:
      - act_connmark: handle errno on tcf_idr_check_alloc
      - flower: fix fl_change() error recovery path

   - ieee802154: prevent user from crashing the host

  Current release - new code bugs:

   - eth: bnxt_en: fix the double free during device removal

   - tools: ynl:
      - fix enum-as-flags in the generic CLI
      - fully inherit attrs in subsets
      - re-license uniformly under GPL-2.0 or BSD-3-clause

  Previous releases - regressions:

   - core: use indirect calls helpers for sk_exit_memory_pressure()

   - tls:
      - fix return value for async crypto
      - avoid hanging tasks on the tx_lock

   - eth: ice: copy last block omitted in ice_get_module_eeprom()

  Previous releases - always broken:

   - core: avoid double iput when sock_alloc_file fails

   - af_unix: fix struct pid leaks in OOB support

   - tls:
      - fix possible race condition
      - fix device-offloaded sendpage straddling records

   - bpf:
      - sockmap: fix an infinite loop error
      - test_run: fix &xdp_frame misplacement for LIVE_FRAMES
      - fix resolving BTF_KIND_VAR after ARRAY, STRUCT, UNION, PTR

   - netfilter: tproxy: fix deadlock due to missing BH disable

   - phylib: get rid of unnecessary locking

   - eth: bgmac: fix *initial* chip reset to support BCM5358

   - eth: nfp: fix csum for ipsec offload

   - eth: mtk_eth_soc: fix RX data corruption issue

  Misc:

   - usb: qmi_wwan: add telit 0x1080 composition"

* tag 'net-6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (64 commits)
  tools: ynl: fix enum-as-flags in the generic CLI
  tools: ynl: move the enum classes to shared code
  net: avoid double iput when sock_alloc_file fails
  af_unix: fix struct pid leaks in OOB support
  eth: fealnx: bring back this old driver
  net: dsa: mt7530: permit port 5 to work without port 6 on MT7621 SoC
  net: microchip: sparx5: fix deletion of existing DSCP mappings
  octeontx2-af: Unlock contexts in the queue context cache in case of fault detection
  net/smc: fix fallback failed while sendmsg with fastopen
  ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause
  mailmap: update entries for Stephen Hemminger
  mailmap: add entry for Maxim Mikityanskiy
  nfc: change order inside nfc_se_io error path
  ethernet: ice: avoid gcc-9 integer overflow warning
  ice: don't ignore return codes in VSI related code
  ice: Fix DSCP PFC TLV creation
  net: usb: qmi_wwan: add Telit 0x1080 composition
  net: usb: cdc_mbim: avoid altsetting toggling for Telit FE990
  netfilter: conntrack: adopt safer max chain length
  net: tls: fix device-offloaded sendpage straddling records
  ...
 2023-03-09 10:56:58 -08:00
Xin Long
42d452e770 sctp: add weighted fair queueing stream scheduler 
As it says in rfc8260#section-3.6 about the weighted fair queueing
scheduler:

   A Weighted Fair Queueing scheduler between the streams is used.  The
   weight is configurable per outgoing SCTP stream.  This scheduler
   considers the lengths of the messages of each stream and schedules
   them in a specific way to use the capacity according to the given
   weights.  If the weight of stream S1 is n times the weight of stream
   S2, the scheduler should assign to stream S1 n times the capacity it
   assigns to stream S2.  The details are implementation dependent.
   Interleaving user messages allows for a better realization of the
   capacity usage according to the given weights.

This patch adds Weighted Fair Queueing Scheduler actually based on
the code of Fair Capacity Scheduler by adding fc_weight into struct
sctp_stream_out_ext and taking it into account when sorting stream->
fc_list in sctp_sched_fc_sched() and sctp_sched_fc_dequeue_done().

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2023-03-09 11:31:44 +01:00
Xin Long
4821a076eb sctp: add fair capacity stream scheduler 
As it says in rfc8260#section-3.5 about the fair capacity scheduler:

   A fair capacity distribution between the streams is used.  This
   scheduler considers the lengths of the messages of each stream and
   schedules them in a specific way to maintain an equal capacity for
   all streams.  The details are implementation dependent.  interleaving
   user messages allows for a better realization of the fair capacity
   usage.

This patch adds Fair Capacity Scheduler based on the foundations added
by commit 5bbbbe32a4 ("sctp: introduce stream scheduler foundations"):

A fc_list and a fc_length are added into struct sctp_stream_out_ext and
a fc_list is added into struct sctp_stream. In .enqueue, when there are
chunks enqueued into a stream, this stream will be linked into stream->
fc_list by its fc_list ordered by its fc_length. In .dequeue, it always
picks up the 1st skb from stream->fc_list. In .dequeue_done, fc_length
is increased by chunk's len and update its location in stream->fc_list
according to the its new fc_length.

Note that when the new fc_length overflows in .dequeue_done, instead of
resetting all fc_lengths to 0, we only reduced them by U32_MAX / 4 to
avoid a moment of imbalance in the scheduling, as Marcelo suggested.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2023-03-09 11:31:44 +01:00
Andrii Nakryiko
6018e1f407 bpf: implement numbers iterator 
Implement the first open-coded iterator type over a range of integers.

It's public API consists of:
  - bpf_iter_num_new() constructor, which accepts [start, end) range
    (that is, start is inclusive, end is exclusive).
  - bpf_iter_num_next() which will keep returning read-only pointer to int
    until the range is exhausted, at which point NULL will be returned.
    If bpf_iter_num_next() is kept calling after this, NULL will be
    persistently returned.
  - bpf_iter_num_destroy() destructor, which needs to be called at some
    point to clean up iterator state. BPF verifier enforces that iterator
    destructor is called at some point before BPF program exits.

Note that `start = end = X` is a valid combination to setup an empty
iterator. bpf_iter_num_new() will return 0 (success) for any such
combination.

If bpf_iter_num_new() detects invalid combination of input arguments, it
returns error, resets iterator state to, effectively, empty iterator, so
any subsequent call to bpf_iter_num_next() will keep returning NULL.

BPF verifier has no knowledge that returned integers are in the
[start, end) value range, as both `start` and `end` are not statically
known and enforced: they are runtime values.

While the implementation is pretty trivial, some care needs to be taken
to avoid overflows and underflows. Subsequent selftests will validate
correctness of [start, end) semantics, especially around extremes
(INT_MIN and INT_MAX).

Similarly to bpf_loop(), we enforce that no more than BPF_MAX_LOOPS can
be specified.

bpf_iter_num_{new,next,destroy}() is a logical evolution from bounded
BPF loops and bpf_loop() helper and is the basis for implementing
ergonomic BPF loops with no statically known or verified bounds.
Subsequent patches implement bpf_for() macro, demonstrating how this can
be wrapped into something that works and feels like a normal for() loop
in C language.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20230308184121.1165081-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2023-03-08 16:19:51 -08:00
Sriram Yagnaraman
4386b92185 netfilter: bridge: introduce broute meta statement 
nftables equivalent for ebtables -t broute.

Implement broute meta statement to set br_netfilter_broute flag
in skb to force a packet to be routed instead of being bridged.

Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Florian Westphal <fw@strlen.de>
 2023-03-08 14:21:18 +01:00
Jakub Kicinski
37d9df224d ynl: re-license uniformly under GPL-2.0 OR BSD-3-Clause 
I was intending to make all the Netlink Spec code BSD-3-Clause
to ease the adoption but it appears that:
 - I fumbled the uAPI and used "GPL WITH uAPI note" there
 - it gives people pause as they expect GPL in the kernel
As suggested by Chuck re-license under dual. This gives us benefit
of full BSD freedom while fulfilling the broad "kernel is under GPL"
expectations.

Link: https://lore.kernel.org/all/20230304120108.05dd44c5@kernel.org/
Link: https://lore.kernel.org/r/20230306200457.3903854-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-07 13:44:30 -08:00
Veerendranath Jakkam
6933486133 wifi: nl80211: Add support for randomizing TA of auth and deauth frames 
Add support to use a random local address in authentication and
deauthentication frames sent to unassociated peer when the driver
supports.

The driver needs to configure receive behavior to accept frames with
random transmit address specified in TX path authentication frames
during the time of the frame exchange is pending and such frames need to
be acknowledged similarly to frames sent to the local permanent address
when this random address functionality is used.

This capability allows use of randomized transmit address for PASN
authentication frames to improve privacy of WLAN clients.

Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
Link: https://lore.kernel.org/r/20230112012415.167556-2-quic_vjakkam@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-03-07 11:12:02 +01:00
Avraham Stern
cbbaf2bb82 wifi: nl80211: add a command to enable/disable HW timestamping 
Add a command to enable and disable HW timestamping of TM and FTM
frames. HW timestamping can be enabled for a specific mac address
or for all addresses.

The low level driver will indicate how many peers HW timestamping
can be enabled concurrently, and this information will be passed
to userspace.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230301115906.05678d7b1c17.Iccc08869ea8156f1c71a3111a47f86dd56234bd0@changeid
[switch to needing netdev UP, minor edits]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-03-07 10:52:00 +01:00
Ilan Peer
d509c55cda wifi: nl80211: Update the documentation of NL80211_SCAN_FLAG_COLOCATED_6GHZ 
Add a detailed description of NL80211_SCAN_FLAG_COLOCATED_6GHZ
flag.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230301115906.487ab04feb39.I5129fd61841332474693046241586f057b134c3c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
 2023-03-07 10:28:41 +01:00
Jakub Kicinski
36e5e391a2 bpf-next-for-netdev 
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2023-03-06

We've added 85 non-merge commits during the last 13 day(s) which contain
a total of 131 files changed, 7102 insertions(+), 1792 deletions(-).

The main changes are:

1) Add skb and XDP typed dynptrs which allow BPF programs for more
   ergonomic and less brittle iteration through data and variable-sized
   accesses, from Joanne Koong.

2) Bigger batch of BPF verifier improvements to prepare for upcoming BPF
   open-coded iterators allowing for less restrictive looping capabilities,
   from Andrii Nakryiko.

3) Rework RCU enforcement in the verifier, add kptr_rcu and enforce BPF
   programs to NULL-check before passing such pointers into kfunc,
   from Alexei Starovoitov.

4) Add support for kptrs in percpu hashmaps, percpu LRU hashmaps and in
   local storage maps, from Kumar Kartikeya Dwivedi.

5) Add BPF verifier support for ST instructions in convert_ctx_access()
   which will help new -mcpu=v4 clang flag to start emitting them,
   from Eduard Zingerman.

6) Make uprobe attachment Android APK aware by supporting attachment
   to functions inside ELF objects contained in APKs via function names,
   from Daniel Müller.

7) Add a new flag BPF_F_TIMER_ABS flag for bpf_timer_start() helper
   to start the timer with absolute expiration value instead of relative
   one, from Tero Kristo.

8) Add a new kfunc bpf_cgroup_from_id() to look up cgroups via id,
   from Tejun Heo.

9) Extend libbpf to support users manually attaching kprobes/uprobes
   in the legacy/perf/link mode, from Menglong Dong.

10) Implement workarounds in the mips BPF JIT for DADDI/R4000,
   from Jiaxun Yang.

11) Enable mixing bpf2bpf and tailcalls for the loongarch BPF JIT,
    from Hengqi Chen.

12) Extend BPF instruction set doc with describing the encoding of BPF
    instructions in terms of how bytes are stored under big/little endian,
    from Jose E. Marchesi.

13) Follow-up to enable kfunc support for riscv BPF JIT, from Pu Lehui.

14) Fix bpf_xdp_query() backwards compatibility on old kernels,
    from Yonghong Song.

15) Fix BPF selftest cross compilation with CLANG_CROSS_FLAGS,
    from Florent Revest.

16) Improve bpf_cpumask_ma to only allocate one bpf_mem_cache,
    from Hou Tao.

17) Fix BPF verifier's check_subprogs to not unnecessarily mark
    a subprogram with has_tail_call, from Ilya Leoshkevich.

18) Fix arm syscall regs spec in libbpf's bpf_tracing.h, from Puranjay Mohan.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (85 commits)
  selftests/bpf: Add test for legacy/perf kprobe/uprobe attach mode
  selftests/bpf: Split test_attach_probe into multi subtests
  libbpf: Add support to set kprobe/uprobe attach mode
  tools/resolve_btfids: Add /libsubcmd to .gitignore
  bpf: add support for fixed-size memory pointer returns for kfuncs
  bpf: generalize dynptr_get_spi to be usable for iters
  bpf: mark PTR_TO_MEM as non-null register type
  bpf: move kfunc_call_arg_meta higher in the file
  bpf: ensure that r0 is marked scratched after any function call
  bpf: fix visit_insn()'s detection of BPF_FUNC_timer_set_callback helper
  bpf: clean up visit_insn()'s instruction processing
  selftests/bpf: adjust log_fixup's buffer size for proper truncation
  bpf: honor env->test_state_freq flag in is_state_visited()
  selftests/bpf: enhance align selftest's expected log matching
  bpf: improve regsafe() checks for PTR_TO_{MEM,BUF,TP_BUFFER}
  bpf: improve stack slot state printing
  selftests/bpf: Disassembler tests for verifier.c:convert_ctx_access()
  selftests/bpf: test if pointer type is tracked for BPF_ST_MEM
  bpf: allow ctx writes using BPF_ST_MEM instruction
  bpf: Use separate RCU callbacks for freeing selem
  ...
====================

Link: https://lore.kernel.org/r/20230307004346.27578-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2023-03-06 20:36:39 -08:00
Qu Wenruo
2943868a90 btrfs: ioctl: return device fsid from DEV_INFO ioctl 
Currently user space utilizes dev info ioctl to grab the info of a
certain devid, this includes its device uuid.  But the returned info is
not enough to determine if a device is a seed.

Commit a26d60dedf ("btrfs: sysfs: add devinfo/fsid to retrieve actual
fsid from the device") exports the same value in sysfs so this is for
parity with ioctl.  Add a new member, fsid, into
btrfs_ioctl_dev_info_args, and populate the member with fsid value.

This should not cause any compatibility problem, following the
combinations:

- Old user space, old kernel
- Old user space, new kernel
  User space tool won't even check the new member.

- New user space, old kernel
  The kernel won't touch the new member, and user space tool should
  zero out its argument, thus the new member is all zero.

  User space tool can then know the kernel doesn't support this fsid
  reporting, and falls back to whatever they can.

- New user space, new kernel
  Go as planned.

  Would find the fsid member is no longer zero, and trust its value.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 2023-03-06 19:28:19 +01:00
Linus Torvalds
06caa75154 SCSI misc on 20230303 
Updates that missed the first pull, mostly because of needing more
 soak time.  Driver updates (zfcp, ufs, mpi3mr, plus two ipr bug
 fixes), an enclosure services (ses) update (mostly bug fixes) and
 other minor bug fixes and changes.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "Updates that missed the first pull, mostly because of needing more
  soak time.

  Driver updates (zfcp, ufs, mpi3mr, plus two ipr bug fixes), an
  enclosure services (ses) update (mostly bug fixes) and other minor bug
  fixes and changes"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (32 commits)
  scsi: zfcp: Trace when request remove fails after qdio send fails
  scsi: zfcp: Change the type of all fsf request id fields and variables to u64
  scsi: zfcp: Make the type for accessing request hashtable buckets size_t
  scsi: ufs: core: Simplify ufshcd_execute_start_stop()
  scsi: ufs: core: Rely on the block layer for setting RQF_PM
  scsi: core: Extend struct scsi_exec_args
  scsi: lpfc: Fix double word in comments
  scsi: core: Remove the /proc/scsi/${proc_name} directory earlier
  scsi: core: Fix a source code comment
  scsi: cxgbi: Remove unneeded version.h include
  scsi: qedi: Remove unneeded version.h include
  scsi: mpi3mr: Remove unneeded version.h include
  scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization
  scsi: mpi3mr: Use number of bits to manage bitmap sizes
  scsi: mpi3mr: Remove unnecessary memcpy() to alltgt_info->dmi
  scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()
  scsi: mpi3mr: Fix an issue found by KASAN
  scsi: mpi3mr: Replace 1-element array with flex-array
  scsi: ipr: Work around fortify-string warning
  scsi: ipr: Make ipr_probe_ioa_part2() return void
  ...
 2023-03-03 14:41:50 -08:00
Linus Torvalds
9d0281b56b block-6.3-2023-03-03 
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Merge tag 'block-6.3-2023-03-03' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Christoph:
      - Don't access released socket during error recovery (Akinobu
        Mita)
      - Bring back auto-removal of deleted namespaces during sequential
        scan (Christoph Hellwig)
      - Fix an error code in nvme_auth_process_dhchap_challenge (Dan
        Carpenter)
      - Show well known discovery name (Daniel Wagner)
      - Add a missing endianess conversion in effects masking (Keith
        Busch)

 - Fix for a regression introduced in blk-rq-qos during init in this
   merge window (Breno)

 - Reorder a few fields in struct blk_mq_tag_set, eliminating a few
   holes and shrinking it (Christophe)

 - Remove redundant bdev_get_queue() NULL checks (Juhyung)

 - Add sed-opal single user mode support flag (Luca)

 - Remove SQE128 check in ublk as it isn't needed, saving some memory
   (Ming)

 - Op specific segment checking for cloned requests (Uday)

 - Exclusive open partition scan fixes (Yu)

 - Loop offset/size checking before assigning them in the device (Zhong)

 - Bio polling fixes (me)

* tag 'block-6.3-2023-03-03' of git://git.kernel.dk/linux:
  blk-mq: enforce op-specific segment limits in blk_insert_cloned_request
  nvme-fabrics: show well known discovery name
  nvme-tcp: don't access released socket during error recovery
  nvme-auth: fix an error code in nvme_auth_process_dhchap_challenge()
  nvme: bring back auto-removal of deleted namespaces during sequential scan
  blk-iocost: Pass gendisk to ioc_refresh_params
  nvme: fix sparse warning on effects masking
  block: be a bit more careful in checking for NULL bdev while polling
  block: clear bio->bi_bdev when putting a bio back in the cache
  loop: loop_set_status_from_info() check before assignment
  ublk: remove check IO_URING_F_SQE128 in ublk_ch_uring_cmd
  block: remove more NULL checks after bdev_get_queue()
  blk-mq: Reorder fields in 'struct blk_mq_tag_set'
  block: fix scan partition for exclusively open device again
  block: Revert "block: Do not reread partition table on exclusively open device"
  sed-opal: add support flag for SUM in status ioctl
 2023-03-03 10:21:39 -08:00
Tero Kristo
f71f853049 bpf: Add support for absolute value BPF timers 
Add a new flag BPF_F_TIMER_ABS that can be passed to bpf_timer_start()
to start an absolute value timer instead of the default relative value.
This makes the timer expire at an exact point in time, instead of a time
with latencies induced by both the BPF and timer subsystems.

Suggested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Link: https://lore.kernel.org/r/20230302114614.2985072-2-tero.kristo@linux.intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2023-03-02 22:41:32 -08:00
Linus Torvalds
2eb29d59dd drm-next-fixes for 6.3-rc1 
fbdev:
 - fix uninit var in error path
 
 shmem:
 - revert unGPLing an export
 
 i915:
 - Don't use stolen memory or BAR mappings for ring buffers with LLC
 - Add inverted backlight quirk for HP 14-r206nv
 - Fix GSI offset for MCR lookups
 - GVT fixes (memleak, debugfs attributes, kconfig, typos)
 
 amdgpu:
 - SMU 13 fixes
 - Enable TMZ for GC 10.3.6
 - Misc display fixes
 - Buddy allocator fixes
 - GC 11 fixes
 - S0ix fix
 - INFO IOCTL queries for GC 11
 - VCN harvest fixes for SR-IOV
 - UMC 8.10 RAS fixes
 - Don't restrict bpc to 8
 - NBIO 7.5 fix
 - Allow freesync on PCon for more devices
 
 amdkfd:
 - SDMA fix
 - Illegal memory access fix
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Merge tag 'drm-next-2023-03-03-1' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "fbdev:
   - fix uninit var in error path

  shmem:
   - revert unGPLing an export

  i915:
   - Don't use stolen memory or BAR mappings for ring buffers with LLC
   - Add inverted backlight quirk for HP 14-r206nv
   - Fix GSI offset for MCR lookups
   - GVT fixes (memleak, debugfs attributes, kconfig, typos)

  amdgpu:
   - SMU 13 fixes
   - Enable TMZ for GC 10.3.6
   - Misc display fixes
   - Buddy allocator fixes
   - GC 11 fixes
   - S0ix fix
   - INFO IOCTL queries for GC 11
   - VCN harvest fixes for SR-IOV
   - UMC 8.10 RAS fixes
   - Don't restrict bpc to 8
   - NBIO 7.5 fix
   - Allow freesync on PCon for more devices

  amdkfd:
   - SDMA fix
   - Illegal memory access fix"

* tag 'drm-next-2023-03-03-1' of git://anongit.freedesktop.org/drm/drm: (45 commits)
  drm/amdgpu/vcn: fix compilation issue with legacy gcc
  drm/amd/display: Extend Freesync over PCon support for more devices
  Revert "drm/amd/display: Do not set DRR on pipe commit"
  drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes
  drm/amd/display: Ext displays with dock can't recognized after resume
  drm/amdgpu: fix ttm_bo calltrace warning in psp_hw_fini
  drm/amdgpu: remove unused variable ring
  drm/amd/display: fix dm irq error message in gpu recover
  drm/amd: Fix initialization for nbio 7.5.1
  drm/amd/display: Don't restrict bpc to 8 bpc
  drm/amdgpu: Make umc_v8_10_convert_error_address static and remove unused variable
  drm/radeon: Fix eDP for single-display iMac11,2
  drm/shmem-helper: Revert accidental non-GPL export
  drm: omapdrm: Do not use helper unininitialized in omap_fbdev_init()
  drm/amd/pm: downgrade log level upon SMU IF version mismatch
  drm/amdgpu: Add ecc info query interface for umc v8_10
  drm/amdgpu: Add convert_error_address function for umc v8_10
  drm/amdgpu: add bad_page_threshold check in ras_eeprom_check_err
  drm/amdgpu: change default behavior of bad_page_threshold parameter
  drm/amdgpu: exclude duplicate pages from UMC RAS UE count
  ...
 2023-03-02 15:08:54 -08:00
Joanne Koong
66e3a13e7c bpf: Add bpf_dynptr_slice and bpf_dynptr_slice_rdwr 
Two new kfuncs are added, bpf_dynptr_slice and bpf_dynptr_slice_rdwr.
The user must pass in a buffer to store the contents of the data slice
if a direct pointer to the data cannot be obtained.

For skb and xdp type dynptrs, these two APIs are the only way to obtain
a data slice. However, for other types of dynptrs, there is no
difference between bpf_dynptr_slice(_rdwr) and bpf_dynptr_data.

For skb type dynptrs, the data is copied into the user provided buffer
if any of the data is not in the linear portion of the skb. For xdp type
dynptrs, the data is copied into the user provided buffer if the data is
between xdp frags.

If the skb is cloned and a call to bpf_dynptr_data_rdwr is made, then
the skb will be uncloned (see bpf_unclone_prologue()).

Please note that any bpf_dynptr_write() automatically invalidates any prior
data slices of the skb dynptr. This is because the skb may be cloned or
may need to pull its paged buffer into the head. As such, any
bpf_dynptr_write() will automatically have its prior data slices
invalidated, even if the write is to data in the skb head of an uncloned
skb. Please note as well that any other helper calls that change the
underlying packet buffer (eg bpf_skb_pull_data()) invalidates any data
slices of the skb dynptr as well, for the same reasons.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://lore.kernel.org/r/20230301154953.641654-10-joannelkoong@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2023-03-01 09:55:24 -08:00
Joanne Koong
05421aecd4 bpf: Add xdp dynptrs 
Add xdp dynptrs, which are dynptrs whose underlying pointer points
to a xdp_buff. The dynptr acts on xdp data. xdp dynptrs have two main
benefits. One is that they allow operations on sizes that are not
statically known at compile-time (eg variable-sized accesses).
Another is that parsing the packet data through dynptrs (instead of
through direct access of xdp->data and xdp->data_end) can be more
ergonomic and less brittle (eg does not need manual if checking for
being within bounds of data_end).

For reads and writes on the dynptr, this includes reading/writing
from/to and across fragments. Data slices through the bpf_dynptr_data
API are not supported; instead bpf_dynptr_slice() and
bpf_dynptr_slice_rdwr() should be used.

For examples of how xdp dynptrs can be used, please see the attached
selftests.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://lore.kernel.org/r/20230301154953.641654-9-joannelkoong@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2023-03-01 09:55:24 -08:00
Joanne Koong
b5964b968a bpf: Add skb dynptrs 
Add skb dynptrs, which are dynptrs whose underlying pointer points
to a skb. The dynptr acts on skb data. skb dynptrs have two main
benefits. One is that they allow operations on sizes that are not
statically known at compile-time (eg variable-sized accesses).
Another is that parsing the packet data through dynptrs (instead of
through direct access of skb->data and skb->data_end) can be more
ergonomic and less brittle (eg does not need manual if checking for
being within bounds of data_end).

For bpf prog types that don't support writes on skb data, the dynptr is
read-only (bpf_dynptr_write() will return an error)

For reads and writes through the bpf_dynptr_read() and bpf_dynptr_write()
interfaces, reading and writing from/to data in the head as well as from/to
non-linear paged buffers is supported. Data slices through the
bpf_dynptr_data API are not supported; instead bpf_dynptr_slice() and
bpf_dynptr_slice_rdwr() (added in subsequent commit) should be used.

For examples of how skb dynptrs can be used, please see the attached
selftests.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://lore.kernel.org/r/20230301154953.641654-8-joannelkoong@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
 2023-03-01 09:55:24 -08:00
Linus Torvalds
a8356cdb5b LoongArch changes for v6.3 
1, Make -mstrict-align configurable;
 2, Add kernel relocation and KASLR support;
 3, Add single kernel image implementation for kdump;
 4, Add hardware breakpoints/watchpoints support;
 5, Add kprobes/kretprobes/kprobes_on_ftrace support;
 6, Add LoongArch support for some selftests.
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Merge tag 'loongarch-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - Make -mstrict-align configurable

 - Add kernel relocation and KASLR support

 - Add single kernel image implementation for kdump

 - Add hardware breakpoints/watchpoints support

 - Add kprobes/kretprobes/kprobes_on_ftrace support

 - Add LoongArch support for some selftests.

* tag 'loongarch-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (23 commits)
  selftests/ftrace: Add LoongArch kprobe args string tests support
  selftests/seccomp: Add LoongArch selftesting support
  tools: Add LoongArch build infrastructure
  samples/kprobes: Add LoongArch support
  LoongArch: Mark some assembler symbols as non-kprobe-able
  LoongArch: Add kprobes on ftrace support
  LoongArch: Add kretprobes support
  LoongArch: Add kprobes support
  LoongArch: Simulate branch and PC* instructions
  LoongArch: ptrace: Add hardware single step support
  LoongArch: ptrace: Add function argument access API
  LoongArch: ptrace: Expose hardware breakpoints to debuggers
  LoongArch: Add hardware breakpoints/watchpoints support
  LoongArch: kdump: Add crashkernel=YM handling
  LoongArch: kdump: Add single kernel image implementation
  LoongArch: Add support for kernel address space layout randomization (KASLR)
  LoongArch: Add support for kernel relocation
  LoongArch: Add la_abs macro implementation
  LoongArch: Add JUMP_VIRT_ADDR macro implementation to avoid using la.abs
  LoongArch: Use la.pcrel instead of la.abs when it's trivially possible
  ...
 2023-03-01 09:27:00 -08:00