Merge branch 'next' into for-linus

Prepare input updates for 6.11 merge window.

Merge tag 'v6.9' into next

Sync up with the mainline to bring in the new cleanup API.

Merge drm/drm-next into drm-intel-gt-next

Some display refactoring patches are needed in order to allow conflict-
less merging.

Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@k

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...

Merge drm/drm-next into drm-intel-next

Backmerge to bring Xe driver to drm-intel-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.11 merge window.

Merge tag 'v6.9' into next

Sync up with the mainline to bring in the new cleanup API.

Merge drm/drm-next into drm-intel-gt-next

Some display refactoring patches are needed in order to allow conflict-
less merging.

Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@k

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...

Merge drm/drm-next into drm-intel-next

Backmerge to bring Xe driver to drm-intel-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers,

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

Merge drm/drm-next into drm-misc-next

Let's kickstart the v6.8 release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge branch 'tip/perf/urgent'

Avoid conflicts, base on fixes.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>

Merge 'bpf-next 2023-10-16' into loongarch-next

LoongArch architecture changes for 6.7 (BPF CPU v4 support) depend on
the bpf changes to fix conflictions in selftests and work, so merge them
to crea

Merge 'bpf-next 2023-10-16' into loongarch-next

LoongArch architecture changes for 6.7 (BPF CPU v4 support) depend on
the bpf changes to fix conflictions in selftests and work, so merge them
to create a base.

show more ...

Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core & protocols:

- Support usec resolution of TCP timest

Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core & protocols:

- Support usec resolution of TCP timestamps, enabled selectively by a
route attribute.

- Defer regular TCP ACK while processing socket backlog, try to send
a cumulative ACK at the end. Increase single TCP flow performance
on a 200Gbit NIC by 20% (100Gbit -> 120Gbit).

- The Fair Queuing (FQ) packet scheduler:
- add built-in 3 band prio / WRR scheduling
- support bypass if the qdisc is mostly idle (5% speed up for TCP RR)
- improve inactive flow reporting
- optimize the layout of structures for better cache locality

- Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern
replacement for the old MD5 option.

- Add more retransmission timeout (RTO) related statistics to
TCP_INFO.

- Support sending fragmented skbs over vsock sockets.

- Make sure we send SIGPIPE for vsock sockets if socket was
shutdown().

- Add sysctl for ignoring lower limit on lifetime in Router
Advertisement PIO, based on an in-progress IETF draft.

- Add sysctl to control activation of TCP ping-pong mode.

- Add sysctl to make connection timeout in MPTCP configurable.

- Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps
limit the number of wakeups.

- Support netlink GET for MDB (multicast forwarding), allowing user
space to request a single MDB entry instead of dumping the entire
table.

- Support selective FDB flushing in the VXLAN tunnel driver.

- Allow limiting learned FDB entries in bridges, prevent OOM attacks.

- Allow controlling via configfs netconsole targets which were
created via the kernel cmdline at boot, rather than via configfs at
runtime.

- Support multiple PTP timestamp event queue readers with different
filters.

- MCTP over I3C.

BPF:

- Add new veth-like netdevice where BPF program defines the logic of
the xmit routine. It can operate in L3 and L2 mode.

- Support exceptions - allow asserting conditions which should never
be true but are hard for the verifier to infer. With some extra
flexibility around handling of the exit / failure:

https://lwn.net/Articles/938435/

- Add support for local per-cpu kptr, allow allocating and storing
per-cpu objects in maps. Access to those objects operates on the
value for the current CPU.

This allows to deprecate local one-off implementations of per-CPU
storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps.

- Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is
for systemd to re-implement the LogNamespace feature which allows
running multiple instances of systemd-journald to process the logs
of different services.

- Enable open-coded task_vma iteration, after maple tree conversion
made it hard to directly walk VMAs in tracing programs.

- Add open-coded task, css_task and css iterator support. One of the
use cases is customizable OOM victim selection via BPF.

- Allow source address selection with bpf_*_fib_lookup().

- Add ability to pin BPF timer to the current CPU.

- Prevent creation of infinite loops by combining tail calls and
fentry/fexit programs.

- Add missed stats for kprobes to retrieve the number of missed
kprobe executions and subsequent executions of BPF programs.

- Inherit system settings for CPU security mitigations.

- Add BPF v4 CPU instruction support for arm32 and s390x.

Changes to common code:

- overflow: add DEFINE_FLEX() for on-stack definition of structs with
flexible array members.

- Process doc update with more guidance for reviewers.

Driver API:

- Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy
mutex in most places and remove a lot of smaller locks.

- Create a common DPLL configuration API. Allow configuring and
querying state of PLL circuits used for clock syntonization, in
network time distribution.

- Unify fragmented and full page allocation APIs in page pool code.
Let drivers be ignorant of PAGE_SIZE.

- Rework PHY state machine to avoid races with calls to phy_stop().

- Notify DSA drivers of MAC address changes on user ports, improve
correctness of offloads which depend on matching port MAC
addresses.

- Allow antenna control on injected WiFi frames.

- Reduce the number of variants of napi_schedule().

- Simplify error handling when composing devlink health messages.

Misc:

- A lot of KCSAN data race "fixes", from Eric.

- A lot of __counted_by() annotations, from Kees.

- A lot of strncpy -> strscpy and printf format fixes.

- Replace master/slave terminology with conduit/user in DSA drivers.

- Handful of KUnit tests for netdev and WiFi core.

Removed:

- AppleTalk COPS.

- AppleTalk ipddp.

- TI AR7 CPMAC Ethernet driver.

Drivers:

- Ethernet high-speed NICs:
- Intel (100G, ice, idpf):
- add a driver for the Intel E2000 IPUs
- make CRC/FCS stripping configurable
- cross-timestamping for E823 devices
- basic support for E830 devices
- use aux-bus for managing client drivers
- i40e: report firmware versions via devlink
- nVidia/Mellanox:
- support 4-port NICs
- increase max number of channels to 256
- optimize / parallelize SF creation flow
- Broadcom (bnxt):
- enhance NIC temperature reporting
- support PAM4 speeds and lane configuration
- Marvell OcteonTX2:
- PTP pulse-per-second output support
- enable hardware timestamping for VFs
- Solarflare/AMD:
- conntrack NAT offload and offload for tunnels
- Wangxun (ngbe/txgbe):
- expose HW statistics
- Pensando/AMD:
- support PCI level reset
- narrow down the condition under which skbs are linearized
- Netronome/Corigine (nfp):
- support CHACHA20-POLY1305 crypto in IPsec offload

- Ethernet NICs embedded, slower, virtual:
- Synopsys (stmmac):
- add Loongson-1 SoC support
- enable use of HW queues with no offload capabilities
- enable PPS input support on all 5 channels
- increase TX coalesce timer to 5ms
- RealTek USB (r8152): improve efficiency of Rx by using GRO frags
- xen: support SW packet timestamping
- add drivers for implementations based on TI's PRUSS (AM64x EVM)

- nVidia/Mellanox Ethernet datacenter switches:
- avoid poor HW resource use on Spectrum-4 by better block
selection for IPv6 multicast forwarding and ordering of blocks
in ACL region

- Ethernet embedded switches:
- Microchip:
- support configuring the drive strength for EMI compliance
- ksz9477: partial ACL support
- ksz9477: HSR offload
- ksz9477: Wake on LAN
- Realtek:
- rtl8366rb: respect device tree config of the CPU port

- Ethernet PHYs:
- support Broadcom BCM5221 PHYs
- TI dp83867: support hardware LED blinking

- CAN:
- add support for Linux-PHY based CAN transceivers
- at91_can: clean up and use rx-offload helpers

- WiFi:
- MediaTek (mt76):
- new sub-driver for mt7925 USB/PCIe devices
- HW wireless <> Ethernet bridging in MT7988 chips
- mt7603/mt7628 stability improvements
- Qualcomm (ath12k):
- WCN7850:
- enable 320 MHz channels in 6 GHz band
- hardware rfkill support
- enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to
make scan faster
- read board data variant name from SMBIOS
- QCN9274: mesh support
- RealTek (rtw89):
- TDMA-based multi-channel concurrency (MCC)
- Silicon Labs (wfx):
- Remain-On-Channel (ROC) support

- Bluetooth:
- ISO: many improvements for broadcast support
- mark BCM4378/BCM4387 as BROKEN_LE_CODED
- add support for QCA2066
- btmtksdio: enable Bluetooth wakeup from suspend"

* tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1816 commits)
net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers
net: bpf: Use sockopt_lock_sock() in ip_sock_set_tos()
net: mana: Use xdp_set_features_flag instead of direct assignment
vxlan: Cleanup IFLA_VXLAN_PORT_RANGE entry in vxlan_get_size()
iavf: delete the iavf client interface
iavf: add a common function for undoing the interrupt scheme
iavf: use unregister_netdev
iavf: rely on netdev's own registered state
iavf: fix the waiting time for initial reset
iavf: in iavf_down, don't queue watchdog_task if comms failed
iavf: simplify mutex_trylock+sleep loops
iavf: fix comments about old bit locks
doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name
tools: ynl: introduce option to process unknown attributes or types
ipvlan: properly track tx_errors
netdevsim: Block until all devices are released
nfp: using napi_build_skb() to replace build_skb()
net: dsa: microchip: ksz9477: Fix spelling mistake "Enery" -> "Energy"
net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN
net: dsa: microchip: Refactor switch shutdown routine for WoL preparation
...

show more ...

Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
Introduce Intel IDPF driver

Pavan Kumar Linga says:

This patch serie

Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
Introduce Intel IDPF driver

Pavan Kumar Linga says:

This patch series introduces the Intel Infrastructure Data Path Function
(IDPF) driver. It is used for both physical and virtual functions. Except
for some of the device operations the rest of the functionality is the
same for both PF and VF. IDPF uses virtchnl version2 opcodes and
structures defined in the virtchnl2 header file which helps the driver
to learn the capabilities and register offsets from the device
Control Plane (CP) instead of assuming the default values.

The format of the series follows the driver init flow to interface open.
To start with, probe gets called and kicks off the driver initialization
by spawning the 'vc_event_task' work queue which in turn calls the
'hard reset' function. As part of that, the mailbox is initialized which
is used to send/receive the virtchnl messages to/from the CP. Once that is
done, 'core init' kicks in which requests all the required global resources
from the CP and spawns the 'init_task' work queue to create the vports.

Based on the capability information received, the driver creates the said
number of vports (one or many) where each vport is associated to a netdev.
Also, each vport has its own resources such as queues, vectors etc.
From there, rest of the netdev_ops and data path are added.

IDPF implements both single queue which is traditional queueing model
as well as split queue model. In split queue model, it uses separate queue
for both completion descriptors and buffers which helps to implement
out-of-order completions. It also helps to implement asymmetric queues,
for example multiple RX completion queues can be processed by a single
RX buffer queue and multiple TX buffer queues can be processed by a
single TX completion queue. In single queue model, same queue is used
for both descriptor completions as well as buffer completions. It also
supports features such as generic checksum offload, generic receive
offload (hardware GRO) etc.
---
v7:
Patch 2:
* removed pci_[disable|enable]_pcie_error_reporting as they are dropped
from the core
Patch 4, 9:
* used 'kasprintf' instead of 'snprintf' to avoid providing explicit
character string size which also fixes "-Wformat-truncation" warnings
Patch 14:
* used 'ethtool_sprintf' instead of 'snprintf' to avoid providing explicit
character string size which also fixes "-Wformat-truncation" warning
* add string format argument to the 'ethtool_sprintf' to avoid warning on
"-Wformat-security"

v6: https://lore.kernel.org/netdev/20230825235954.894050-1-pavan.kumar.linga@intel.com/
Note: 'Acked-by' was only added to patches 1, 2, 12 and not to the other
patches because of the changes in v6

Patch 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15:
* renamed 'reset_lock' to 'vport_ctrl_lock' to reflect the lock usage
* to avoid defensive programming, used 'vport_ctrl_lock' for the user
callbacks that access the 'vport' to prevent the hardware reset thread
from releasing the 'vport', when the user callback is in progress
* added some variables to netdev private structure to avoid vport access
if possible from ethtool and ndo callbacks
* moved 'mac_filter_list_lock' and MAC related flags to vport_config
structure and refactored mac filter flow to handle asynchronous
ndo mac filter callbacks
* stop the queues before starting the reset flow to avoid TX hangs
* removed 'sw_mutex' and 'stop_mutex' as they are not needed anymore
* added missing clear bit in 'init_task' error path
* renamed labels appropriately
Patch 8:
* replaced page_pool_put_page with page_pool_put_full_page
* for the page pool max_len, used PAGE_SIZE
Patch 10, 11, 13:
* made use of the 'netif_txq_maybe_stop', '__netif_txq_completed_wake'
helper macros
Patch 13:
* removed IDPF_HR_RESET_IN_PROG flag check in idpf_tx_singleq_start
as it is defensive
Patch 14:
* removed max descriptor check as the core does that
* removed unnecessary error messages
* removed the stats that are common between the ones reported by ethtool
and ip link
* replaced snprintf with ethtool_sprintf
* added a comment to explain the reason for the max queue check
* as the netdev queues are set on alloc, there is no need to set
them again on reset unless there is a queue change, so move the
'idpf_set_real_num_queues' to 'idpf_initiate_soft_reset'
Patch 15:
* reworded the 'configure SRIOV' in the commit message

v5: https://lore.kernel.org/netdev/20230816004305.216136-1-anthony.l.nguyen@intel.com/
Most Patches:
* wrapped line limit to 80 chars to those which don't effect readability
Patch 12:
* in skb_add_rx_frag, offset 'headlen' w.r.t page_offset when adding a
frag to avoid adding the header again
Patch 14:
* added NULL check for 'rxq' when dereferencing it in page_pool_get_stats

v4: https://lore.kernel.org/netdev/20230808003416.3805142-1-anthony.l.nguyen@intel.com/
Patch 1:
* s/virtcnl/virtchnl
* removed the kernel doc for the error code definitions that don't exist
* reworded the summary part in the virtchnl2 header
Patch 3:
* don't set local variable to NULL on error
* renamed sq_send_command_out label with err_unlock
* don't use __GFP_ZERO in dma_alloc_coherent
Patch 4:
* introduced mailbox workqueue to process mailbox interrupts
Patch 3, 4, 5, 6, 7, 8, 9, 11, 15:
* removed unnecessary variable 0-init
Patch 3, 5, 7, 8, 9, 15:
* removed defensive programming checks wherever applicable
* removed IDPF_CAP_FIELD_LAST as it can be treated as defensive
programming
Patch 3, 4, 5, 6, 7:
* replaced IDPF_DFLT_MBX_BUF_SIZE with IDPF_CTLQ_MAX_BUF_LEN
Patch 2 to 15:
* add kernel-doc for idpf.h and idpf_txrx.h enums and structures
Patch 4, 5, 15:
* adjusted the destroy sequence of the workqueues as per the alloc
sequence
Patch 4, 5, 9, 15:
* scrub unnecessary flags in 'idpf_flags'
- IDPF_REMOVE_IN_PROG flag can take care of the cases where
IDPF_REL_RES_IN_PROG is used, removed the later one
- IDPF_REQ_[TX|RX]_SPLITQ are replaced with struct variables
- IDPF_CANCEL_[SERVICE|STATS]_TASK are redundant as the work queue
doesn't get rescheduled again after 'cancel_delayed_work_sync'
- IDPF_HR_CORE_RESET is removed as there is no set_bit for this flag
- IDPF_MB_INTR_TRIGGER is removed as it is not needed anymore with the
mailbox workqueue implementation
Patch 7 to 15:
* replaced the custom buffer recycling code with page pool API
* switched the header split buffer allocations from using a bunch of
pages to using one large chunk of DMA memory
* reordered some of the flows in vport_open to support page pool
Patch 8, 12:
* don't suppress the alloc errors by using __GFP_NOWARN
Patch 9:
* removed dyn_ctl_clrpba_m as it is not being used
Patch 14:
* introduced enum idpf_vport_reset_cause instead of using vport flags
* introduced page pool stats

v3: https://lore.kernel.org/netdev/20230616231341.2885622-1-anthony.l.nguyen@intel.com/
Patch 5:
* instead of void, used 'struct virtchnl2_create_vport' type for
vport_params_recvd and vport_params_reqd and removed the typecasting
* used u16/u32 as needed instead of int for variables which cannot be
negative and updated in all the places whereever applicable
Patch 6:
* changed the commit message to "add ptypes and MAC filter support"
* used the sender Signed-off-by as the last tag on all the patches
* removed unnecessary variables 0-init
* instead of fixing the code in this commit, fixed it in the commit
where the change was introduced first
* moved get_type_info struct on to the stack instead of memory alloc
* moved mutex_lock and ptype_info memory alloc outside while loop and
adjusted the return flow
* used 'break' instead of 'continue' in ptype id switch case

v2: https://lore.kernel.org/netdev/20230614171428.1504179-1-anthony.l.nguyen@intel.com/
Patch 2:
* added "Intel(R)" to the DRV_SUMMARY and Makefile.
Patch 4, 5, 6, 15:
* replaced IDPF_VC_MSG_PENDING flag with mutex 'vc_buf_lock' for the
adapter related virtchnl opcodes.
* get the mutex lock in the virtchnl send thread itself instead of
in receive thread.
Patch 5, 6, 7, 8, 9, 11, 14, 15:
* replaced IDPF_VPORT_VC_MSG_PENDING flag with mutex 'vc_buf_lock' for
the vport related virtchnl opcodes.
* get the mutex lock in the virtchnl send thread itself instead of
in receive thread.
Patch 6:
* converted get_ptype_info logic from 1:N to 1:1 message exchange for
better handling of mutex lock.
Patch 15:
* introduced 'stats_lock' spinlock to avoid concurrent stats update.

v1: https://lore.kernel.org/netdev/20230530234501.2680230-1-anthony.l.nguyen@intel.com/

====================

Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

virtchnl: add virtchnl version 2 ops

Virtchnl version 1 is an interface used by the current generation of
foundational NICs to negotiate the capabilities and configure the
HW resources such as queue

virtchnl: add virtchnl version 2 ops

Virtchnl version 1 is an interface used by the current generation of
foundational NICs to negotiate the capabilities and configure the
HW resources such as queues, vectors, RSS LUT, etc between the PF
and VF drivers. It is not extensible to enable new features supported
in the next generation of NICs/IPUs and to negotiate descriptor types,
packet types and register offsets.

To overcome the limitations of the existing interface, introduce
the virtchnl version 2 and add the necessary opcodes, structures,
definitions, and descriptor formats. The driver also learns the
data queue and other register offsets to use instead of hardcoding
them. The advantage of this approach is that it gives the flexibility
to modify the register offsets if needed, restrict the use of
certain descriptor types and negotiate the supported packet types.

Co-developed-by: Alan Brady <alan.brady@intel.com>
Signed-off-by: Alan Brady <alan.brady@intel.com>
Co-developed-by: Joshua Hay <joshua.a.hay@intel.com>
Signed-off-by: Joshua Hay <joshua.a.hay@intel.com>
Co-developed-by: Madhu Chittim <madhu.chittim@intel.com>
Signed-off-by: Madhu Chittim <madhu.chittim@intel.com>
Co-developed-by: Phani Burra <phani.r.burra@intel.com>
Signed-off-by: Phani Burra <phani.r.burra@intel.com>
Co-developed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Pavan Kumar Linga <pavan.kumar.linga@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

show more ...

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers,

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

Merge drm/drm-next into drm-misc-next

Let's kickstart the v6.8 release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge branch 'tip/perf/urgent'

Avoid conflicts, base on fixes.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>

Merge 'bpf-next 2023-10-16' into loongarch-next

LoongArch architecture changes for 6.7 (BPF CPU v4 support) depend on
the bpf changes to fix conflictions in selftests and work, so merge them
to crea

Merge 'bpf-next 2023-10-16' into loongarch-next

LoongArch architecture changes for 6.7 (BPF CPU v4 support) depend on
the bpf changes to fix conflictions in selftests and work, so merge them
to create a base.

show more ...

Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core & protocols:

- Support usec resolution of TCP timest

Merge tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core & protocols:

- Support usec resolution of TCP timestamps, enabled selectively by a
route attribute.

- Defer regular TCP ACK while processing socket backlog, try to send
a cumulative ACK at the end. Increase single TCP flow performance
on a 200Gbit NIC by 20% (100Gbit -> 120Gbit).

- The Fair Queuing (FQ) packet scheduler:
- add built-in 3 band prio / WRR scheduling
- support bypass if the qdisc is mostly idle (5% speed up for TCP RR)
- improve inactive flow reporting
- optimize the layout of structures for better cache locality

- Support TCP Authentication Option (RFC 5925, TCP-AO), a more modern
replacement for the old MD5 option.

- Add more retransmission timeout (RTO) related statistics to
TCP_INFO.

- Support sending fragmented skbs over vsock sockets.

- Make sure we send SIGPIPE for vsock sockets if socket was
shutdown().

- Add sysctl for ignoring lower limit on lifetime in Router
Advertisement PIO, based on an in-progress IETF draft.

- Add sysctl to control activation of TCP ping-pong mode.

- Add sysctl to make connection timeout in MPTCP configurable.

- Support rcvlowat and notsent_lowat on MPTCP sockets, to help apps
limit the number of wakeups.

- Support netlink GET for MDB (multicast forwarding), allowing user
space to request a single MDB entry instead of dumping the entire
table.

- Support selective FDB flushing in the VXLAN tunnel driver.

- Allow limiting learned FDB entries in bridges, prevent OOM attacks.

- Allow controlling via configfs netconsole targets which were
created via the kernel cmdline at boot, rather than via configfs at
runtime.

- Support multiple PTP timestamp event queue readers with different
filters.

- MCTP over I3C.

BPF:

- Add new veth-like netdevice where BPF program defines the logic of
the xmit routine. It can operate in L3 and L2 mode.

- Support exceptions - allow asserting conditions which should never
be true but are hard for the verifier to infer. With some extra
flexibility around handling of the exit / failure:

https://lwn.net/Articles/938435/

- Add support for local per-cpu kptr, allow allocating and storing
per-cpu objects in maps. Access to those objects operates on the
value for the current CPU.

This allows to deprecate local one-off implementations of per-CPU
storage like BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE maps.

- Extend cgroup BPF sockaddr hooks for UNIX sockets. The use case is
for systemd to re-implement the LogNamespace feature which allows
running multiple instances of systemd-journald to process the logs
of different services.

- Enable open-coded task_vma iteration, after maple tree conversion
made it hard to directly walk VMAs in tracing programs.

- Add open-coded task, css_task and css iterator support. One of the
use cases is customizable OOM victim selection via BPF.

- Allow source address selection with bpf_*_fib_lookup().

- Add ability to pin BPF timer to the current CPU.

- Prevent creation of infinite loops by combining tail calls and
fentry/fexit programs.

- Add missed stats for kprobes to retrieve the number of missed
kprobe executions and subsequent executions of BPF programs.

- Inherit system settings for CPU security mitigations.

- Add BPF v4 CPU instruction support for arm32 and s390x.

Changes to common code:

- overflow: add DEFINE_FLEX() for on-stack definition of structs with
flexible array members.

- Process doc update with more guidance for reviewers.

Driver API:

- Simplify locking in WiFi (cfg80211 and mac80211 layers), use wiphy
mutex in most places and remove a lot of smaller locks.

- Create a common DPLL configuration API. Allow configuring and
querying state of PLL circuits used for clock syntonization, in
network time distribution.

- Unify fragmented and full page allocation APIs in page pool code.
Let drivers be ignorant of PAGE_SIZE.

- Rework PHY state machine to avoid races with calls to phy_stop().

- Notify DSA drivers of MAC address changes on user ports, improve
correctness of offloads which depend on matching port MAC
addresses.

- Allow antenna control on injected WiFi frames.

- Reduce the number of variants of napi_schedule().

- Simplify error handling when composing devlink health messages.

Misc:

- A lot of KCSAN data race "fixes", from Eric.

- A lot of __counted_by() annotations, from Kees.

- A lot of strncpy -> strscpy and printf format fixes.

- Replace master/slave terminology with conduit/user in DSA drivers.

- Handful of KUnit tests for netdev and WiFi core.

Removed:

- AppleTalk COPS.

- AppleTalk ipddp.

- TI AR7 CPMAC Ethernet driver.

Drivers:

- Ethernet high-speed NICs:
- Intel (100G, ice, idpf):
- add a driver for the Intel E2000 IPUs
- make CRC/FCS stripping configurable
- cross-timestamping for E823 devices
- basic support for E830 devices
- use aux-bus for managing client drivers
- i40e: report firmware versions via devlink
- nVidia/Mellanox:
- support 4-port NICs
- increase max number of channels to 256
- optimize / parallelize SF creation flow
- Broadcom (bnxt):
- enhance NIC temperature reporting
- support PAM4 speeds and lane configuration
- Marvell OcteonTX2:
- PTP pulse-per-second output support
- enable hardware timestamping for VFs
- Solarflare/AMD:
- conntrack NAT offload and offload for tunnels
- Wangxun (ngbe/txgbe):
- expose HW statistics
- Pensando/AMD:
- support PCI level reset
- narrow down the condition under which skbs are linearized
- Netronome/Corigine (nfp):
- support CHACHA20-POLY1305 crypto in IPsec offload

- Ethernet NICs embedded, slower, virtual:
- Synopsys (stmmac):
- add Loongson-1 SoC support
- enable use of HW queues with no offload capabilities
- enable PPS input support on all 5 channels
- increase TX coalesce timer to 5ms
- RealTek USB (r8152): improve efficiency of Rx by using GRO frags
- xen: support SW packet timestamping
- add drivers for implementations based on TI's PRUSS (AM64x EVM)

- nVidia/Mellanox Ethernet datacenter switches:
- avoid poor HW resource use on Spectrum-4 by better block
selection for IPv6 multicast forwarding and ordering of blocks
in ACL region

- Ethernet embedded switches:
- Microchip:
- support configuring the drive strength for EMI compliance
- ksz9477: partial ACL support
- ksz9477: HSR offload
- ksz9477: Wake on LAN
- Realtek:
- rtl8366rb: respect device tree config of the CPU port

- Ethernet PHYs:
- support Broadcom BCM5221 PHYs
- TI dp83867: support hardware LED blinking

- CAN:
- add support for Linux-PHY based CAN transceivers
- at91_can: clean up and use rx-offload helpers

- WiFi:
- MediaTek (mt76):
- new sub-driver for mt7925 USB/PCIe devices
- HW wireless <> Ethernet bridging in MT7988 chips
- mt7603/mt7628 stability improvements
- Qualcomm (ath12k):
- WCN7850:
- enable 320 MHz channels in 6 GHz band
- hardware rfkill support
- enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS to
make scan faster
- read board data variant name from SMBIOS
- QCN9274: mesh support
- RealTek (rtw89):
- TDMA-based multi-channel concurrency (MCC)
- Silicon Labs (wfx):
- Remain-On-Channel (ROC) support

- Bluetooth:
- ISO: many improvements for broadcast support
- mark BCM4378/BCM4387 as BROKEN_LE_CODED
- add support for QCA2066
- btmtksdio: enable Bluetooth wakeup from suspend"

* tag 'net-next-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1816 commits)
net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers
net: bpf: Use sockopt_lock_sock() in ip_sock_set_tos()
net: mana: Use xdp_set_features_flag instead of direct assignment
vxlan: Cleanup IFLA_VXLAN_PORT_RANGE entry in vxlan_get_size()
iavf: delete the iavf client interface
iavf: add a common function for undoing the interrupt scheme
iavf: use unregister_netdev
iavf: rely on netdev's own registered state
iavf: fix the waiting time for initial reset
iavf: in iavf_down, don't queue watchdog_task if comms failed
iavf: simplify mutex_trylock+sleep loops
iavf: fix comments about old bit locks
doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name
tools: ynl: introduce option to process unknown attributes or types
ipvlan: properly track tx_errors
netdevsim: Block until all devices are released
nfp: using napi_build_skb() to replace build_skb()
net: dsa: microchip: ksz9477: Fix spelling mistake "Enery" -> "Energy"
net: dsa: microchip: Ensure Stable PME Pin State for Wake-on-LAN
net: dsa: microchip: Refactor switch shutdown routine for WoL preparation
...

show more ...

Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
Introduce Intel IDPF driver

Pavan Kumar Linga says:

This patch serie

Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
Introduce Intel IDPF driver

Pavan Kumar Linga says:

This patch series introduces the Intel Infrastructure Data Path Function
(IDPF) driver. It is used for both physical and virtual functions. Except
for some of the device operations the rest of the functionality is the
same for both PF and VF. IDPF uses virtchnl version2 opcodes and
structures defined in the virtchnl2 header file which helps the driver
to learn the capabilities and register offsets from the device
Control Plane (CP) instead of assuming the default values.

The format of the series follows the driver init flow to interface open.
To start with, probe gets called and kicks off the driver initialization
by spawning the 'vc_event_task' work queue which in turn calls the
'hard reset' function. As part of that, the mailbox is initialized which
is used to send/receive the virtchnl messages to/from the CP. Once that is
done, 'core init' kicks in which requests all the required global resources
from the CP and spawns the 'init_task' work queue to create the vports.

Based on the capability information received, the driver creates the said
number of vports (one or many) where each vport is associated to a netdev.
Also, each vport has its own resources such as queues, vectors etc.
From there, rest of the netdev_ops and data path are added.

IDPF implements both single queue which is traditional queueing model
as well as split queue model. In split queue model, it uses separate queue
for both completion descriptors and buffers which helps to implement
out-of-order completions. It also helps to implement asymmetric queues,
for example multiple RX completion queues can be processed by a single
RX buffer queue and multiple TX buffer queues can be processed by a
single TX completion queue. In single queue model, same queue is used
for both descriptor completions as well as buffer completions. It also
supports features such as generic checksum offload, generic receive
offload (hardware GRO) etc.
---
v7:
Patch 2:
* removed pci_[disable|enable]_pcie_error_reporting as they are dropped
from the core
Patch 4, 9:
* used 'kasprintf' instead of 'snprintf' to avoid providing explicit
character string size which also fixes "-Wformat-truncation" warnings
Patch 14:
* used 'ethtool_sprintf' instead of 'snprintf' to avoid providing explicit
character string size which also fixes "-Wformat-truncation" warning
* add string format argument to the 'ethtool_sprintf' to avoid warning on
"-Wformat-security"

v6: https://lore.kernel.org/netdev/20230825235954.894050-1-pavan.kumar.linga@intel.com/
Note: 'Acked-by' was only added to patches 1, 2, 12 and not to the other
patches because of the changes in v6

Patch 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15:
* renamed 'reset_lock' to 'vport_ctrl_lock' to reflect the lock usage
* to avoid defensive programming, used 'vport_ctrl_lock' for the user
callbacks that access the 'vport' to prevent the hardware reset thread
from releasing the 'vport', when the user callback is in progress
* added some variables to netdev private structure to avoid vport access
if possible from ethtool and ndo callbacks
* moved 'mac_filter_list_lock' and MAC related flags to vport_config
structure and refactored mac filter flow to handle asynchronous
ndo mac filter callbacks
* stop the queues before starting the reset flow to avoid TX hangs
* removed 'sw_mutex' and 'stop_mutex' as they are not needed anymore
* added missing clear bit in 'init_task' error path
* renamed labels appropriately
Patch 8:
* replaced page_pool_put_page with page_pool_put_full_page
* for the page pool max_len, used PAGE_SIZE
Patch 10, 11, 13:
* made use of the 'netif_txq_maybe_stop', '__netif_txq_completed_wake'
helper macros
Patch 13:
* removed IDPF_HR_RESET_IN_PROG flag check in idpf_tx_singleq_start
as it is defensive
Patch 14:
* removed max descriptor check as the core does that
* removed unnecessary error messages
* removed the stats that are common between the ones reported by ethtool
and ip link
* replaced snprintf with ethtool_sprintf
* added a comment to explain the reason for the max queue check
* as the netdev queues are set on alloc, there is no need to set
them again on reset unless there is a queue change, so move the
'idpf_set_real_num_queues' to 'idpf_initiate_soft_reset'
Patch 15:
* reworded the 'configure SRIOV' in the commit message

v5: https://lore.kernel.org/netdev/20230816004305.216136-1-anthony.l.nguyen@intel.com/
Most Patches:
* wrapped line limit to 80 chars to those which don't effect readability
Patch 12:
* in skb_add_rx_frag, offset 'headlen' w.r.t page_offset when adding a
frag to avoid adding the header again
Patch 14:
* added NULL check for 'rxq' when dereferencing it in page_pool_get_stats

v4: https://lore.kernel.org/netdev/20230808003416.3805142-1-anthony.l.nguyen@intel.com/
Patch 1:
* s/virtcnl/virtchnl
* removed the kernel doc for the error code definitions that don't exist
* reworded the summary part in the virtchnl2 header
Patch 3:
* don't set local variable to NULL on error
* renamed sq_send_command_out label with err_unlock
* don't use __GFP_ZERO in dma_alloc_coherent
Patch 4:
* introduced mailbox workqueue to process mailbox interrupts
Patch 3, 4, 5, 6, 7, 8, 9, 11, 15:
* removed unnecessary variable 0-init
Patch 3, 5, 7, 8, 9, 15:
* removed defensive programming checks wherever applicable
* removed IDPF_CAP_FIELD_LAST as it can be treated as defensive
programming
Patch 3, 4, 5, 6, 7:
* replaced IDPF_DFLT_MBX_BUF_SIZE with IDPF_CTLQ_MAX_BUF_LEN
Patch 2 to 15:
* add kernel-doc for idpf.h and idpf_txrx.h enums and structures
Patch 4, 5, 15:
* adjusted the destroy sequence of the workqueues as per the alloc
sequence
Patch 4, 5, 9, 15:
* scrub unnecessary flags in 'idpf_flags'
- IDPF_REMOVE_IN_PROG flag can take care of the cases where
IDPF_REL_RES_IN_PROG is used, removed the later one
- IDPF_REQ_[TX|RX]_SPLITQ are replaced with struct variables
- IDPF_CANCEL_[SERVICE|STATS]_TASK are redundant as the work queue
doesn't get rescheduled again after 'cancel_delayed_work_sync'
- IDPF_HR_CORE_RESET is removed as there is no set_bit for this flag
- IDPF_MB_INTR_TRIGGER is removed as it is not needed anymore with the
mailbox workqueue implementation
Patch 7 to 15:
* replaced the custom buffer recycling code with page pool API
* switched the header split buffer allocations from using a bunch of
pages to using one large chunk of DMA memory
* reordered some of the flows in vport_open to support page pool
Patch 8, 12:
* don't suppress the alloc errors by using __GFP_NOWARN
Patch 9:
* removed dyn_ctl_clrpba_m as it is not being used
Patch 14:
* introduced enum idpf_vport_reset_cause instead of using vport flags
* introduced page pool stats

v3: https://lore.kernel.org/netdev/20230616231341.2885622-1-anthony.l.nguyen@intel.com/
Patch 5:
* instead of void, used 'struct virtchnl2_create_vport' type for
vport_params_recvd and vport_params_reqd and removed the typecasting
* used u16/u32 as needed instead of int for variables which cannot be
negative and updated in all the places whereever applicable
Patch 6:
* changed the commit message to "add ptypes and MAC filter support"
* used the sender Signed-off-by as the last tag on all the patches
* removed unnecessary variables 0-init
* instead of fixing the code in this commit, fixed it in the commit
where the change was introduced first
* moved get_type_info struct on to the stack instead of memory alloc
* moved mutex_lock and ptype_info memory alloc outside while loop and
adjusted the return flow
* used 'break' instead of 'continue' in ptype id switch case

v2: https://lore.kernel.org/netdev/20230614171428.1504179-1-anthony.l.nguyen@intel.com/
Patch 2:
* added "Intel(R)" to the DRV_SUMMARY and Makefile.
Patch 4, 5, 6, 15:
* replaced IDPF_VC_MSG_PENDING flag with mutex 'vc_buf_lock' for the
adapter related virtchnl opcodes.
* get the mutex lock in the virtchnl send thread itself instead of
in receive thread.
Patch 5, 6, 7, 8, 9, 11, 14, 15:
* replaced IDPF_VPORT_VC_MSG_PENDING flag with mutex 'vc_buf_lock' for
the vport related virtchnl opcodes.
* get the mutex lock in the virtchnl send thread itself instead of
in receive thread.
Patch 6:
* converted get_ptype_info logic from 1:N to 1:1 message exchange for
better handling of mutex lock.
Patch 15:
* introduced 'stats_lock' spinlock to avoid concurrent stats update.

v1: https://lore.kernel.org/netdev/20230530234501.2680230-1-anthony.l.nguyen@intel.com/

====================

Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

virtchnl: add virtchnl version 2 ops

Virtchnl version 1 is an interface used by the current generation of
foundational NICs to negotiate the capabilities and configure the
HW resources such as queue

virtchnl: add virtchnl version 2 ops

Virtchnl version 1 is an interface used by the current generation of
foundational NICs to negotiate the capabilities and configure the
HW resources such as queues, vectors, RSS LUT, etc between the PF
and VF drivers. It is not extensible to enable new features supported
in the next generation of NICs/IPUs and to negotiate descriptor types,
packet types and register offsets.

To overcome the limitations of the existing interface, introduce
the virtchnl version 2 and add the necessary opcodes, structures,
definitions, and descriptor formats. The driver also learns the
data queue and other register offsets to use instead of hardcoding
them. The advantage of this approach is that it gives the flexibility
to modify the register offsets if needed, restrict the use of
certain descriptor types and negotiate the supported packet types.

Co-developed-by: Alan Brady <alan.brady@intel.com>
Signed-off-by: Alan Brady <alan.brady@intel.com>
Co-developed-by: Joshua Hay <joshua.a.hay@intel.com>
Signed-off-by: Joshua Hay <joshua.a.hay@intel.com>
Co-developed-by: Madhu Chittim <madhu.chittim@intel.com>
Signed-off-by: Madhu Chittim <madhu.chittim@intel.com>
Co-developed-by: Phani Burra <phani.r.burra@intel.com>
Signed-off-by: Phani Burra <phani.r.burra@intel.com>
Co-developed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Pavan Kumar Linga <pavan.kumar.linga@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

show more ...

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers,

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...