History log of /openbmc/linux/net/ipv4/af_inet.c (Results 101 – 125 of 2540)
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Revision tags: v6.1.19
# b3c9a041 13-Mar-2023 Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

Backmerging to get latest upstream.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# a1eccc57 13-Mar-2023 Thomas Zimmermann <tzimmermann@suse.de>

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

Backmerging to get v6.3-rc1 and sync with the other DRM trees.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


Revision tags: v6.1.18, v6.1.17
# b8fa3e38 10-Mar-2023 Arnaldo Carvalho de Melo <acme@redhat.com>

Merge remote-tracking branch 'acme/perf-tools' into perf-tools-next

To pick up perf-tools fixes just merged upstream.

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


Revision tags: v6.1.16
# 26ed1d29 03-Mar-2023 Takashi Iwai <tiwai@suse.de>

Merge branch 'for-next' into for-linus


Revision tags: v6.1.15, v6.1.14
# 585a78c1 23-Feb-2023 Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into objtool/core, to pick up Xen dependencies

Pick up dependencies - freshly merged upstream via xen-next - before applying
dependent objtool changes.

Signed-off-by: Ingo Moln

Merge branch 'linus' into objtool/core, to pick up Xen dependencies

Pick up dependencies - freshly merged upstream via xen-next - before applying
dependent objtool changes.

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

show more ...


Revision tags: v6.1.13
# 5b7c4cab 21-Feb-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core:

- Add dedicated kmem_cache for typical/small skb->h

Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
"Core:

- Add dedicated kmem_cache for typical/small skb->head, avoid having
to access struct page at kfree time, and improve memory use.

- Introduce sysctl to set default RPS configuration for new netdevs.

- Define Netlink protocol specification format which can be used to
describe messages used by each family and auto-generate parsers.
Add tools for generating kernel data structures and uAPI headers.

- Expose all net/core sysctls inside netns.

- Remove 4s sleep in netpoll if carrier is instantly detected on
boot.

- Add configurable limit of MDB entries per port, and port-vlan.

- Continue populating drop reasons throughout the stack.

- Retire a handful of legacy Qdiscs and classifiers.

Protocols:

- Support IPv4 big TCP (TSO frames larger than 64kB).

- Add IP_LOCAL_PORT_RANGE socket option, to control local port range
on socket by socket basis.

- Track and report in procfs number of MPTCP sockets used.

- Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
manager.

- IPv6: don't check net.ipv6.route.max_size and rely on garbage
collection to free memory (similarly to IPv4).

- Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

- ICMP: add per-rate limit counters.

- Add support for user scanning requests in ieee802154.

- Remove static WEP support.

- Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
reporting.

- WiFi 7 EHT channel puncturing support (client & AP).

BPF:

- Add a rbtree data structure following the "next-gen data structure"
precedent set by recently added linked list, that is, by using
kfunc + kptr instead of adding a new BPF map type.

- Expose XDP hints via kfuncs with initial support for RX hash and
timestamp metadata.

- Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
better support decap on GRE tunnel devices not operating in collect
metadata.

- Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

- Remove the need for trace_printk_lock for bpf_trace_printk and
bpf_trace_vprintk helpers.

- Extend libbpf's bpf_tracing.h support for tracing arguments of
kprobes/uprobes and syscall as a special case.

- Significantly reduce the search time for module symbols by
livepatch and BPF.

- Enable cpumasks to be used as kptrs, which is useful for tracing
programs tracking which tasks end up running on which CPUs in
different time intervals.

- Add support for BPF trampoline on s390x and riscv64.

- Add capability to export the XDP features supported by the NIC.

- Add __bpf_kfunc tag for marking kernel functions as kfuncs.

- Add cgroup.memory=nobpf kernel parameter option to disable BPF
memory accounting for container environments.

Netfilter:

- Remove the CLUSTERIP target. It has been marked as obsolete for
years, and we still have WARN splats wrt races of the out-of-band
/proc interface installed by this target.

- Add 'destroy' commands to nf_tables. They are identical to the
existing 'delete' commands, but do not return an error if the
referenced object (set, chain, rule...) did not exist.

Driver API:

- Improve cpumask_local_spread() locality to help NICs set the right
IRQ affinity on AMD platforms.

- Separate C22 and C45 MDIO bus transactions more clearly.

- Introduce new DCB table to control DSCP rewrite on egress.

- Support configuration of Physical Layer Collision Avoidance (PLCA)
Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
shared medium Ethernet.

- Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
preemption of low priority frames by high priority frames.

- Add support for controlling MACSec offload using netlink SET.

- Rework devlink instance refcounts to allow registration and
de-registration under the instance lock. Split the code into
multiple files, drop some of the unnecessarily granular locks and
factor out common parts of netlink operation handling.

- Add TX frame aggregation parameters (for USB drivers).

- Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
messages with notifications for debug.

- Allow offloading of UDP NEW connections via act_ct.

- Add support for per action HW stats in TC.

- Support hardware miss to TC action (continue processing in SW from
a specific point in the action chain).

- Warn if old Wireless Extension user space interface is used with
modern cfg80211/mac80211 drivers. Do not support Wireless
Extensions for Wi-Fi 7 devices at all. Everyone should switch to
using nl80211 interface instead.

- Improve the CAN bit timing configuration. Use extack to return
error messages directly to user space, update the SJW handling,
including the definition of a new default value that will benefit
CAN-FD controllers, by increasing their oscillator tolerance.

New hardware / drivers:

- Ethernet:
- nVidia BlueField-3 support (control traffic driver)
- Ethernet support for imx93 SoCs
- Motorcomm yt8531 gigabit Ethernet PHY
- onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
- Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
- Amlogic gxl MDIO mux

- WiFi:
- RealTek RTL8188EU (rtl8xxxu)
- Qualcomm Wi-Fi 7 devices (ath12k)

- CAN:
- Renesas R-Car V4H

Drivers:

- Bluetooth:
- Set Per Platform Antenna Gain (PPAG) for Intel controllers.

- Ethernet NICs:
- Intel (1G, igc):
- support TSN / Qbv / packet scheduling features of i226 model
- Intel (100G, ice):
- use GNSS subsystem instead of TTY
- multi-buffer XDP support
- extend support for GPIO pins to E823 devices
- nVidia/Mellanox:
- update the shared buffer configuration on PFC commands
- implement PTP adjphase function for HW offset control
- TC support for Geneve and GRE with VF tunnel offload
- more efficient crypto key management method
- multi-port eswitch support
- Netronome/Corigine:
- add DCB IEEE support
- support IPsec offloading for NFP3800
- Freescale/NXP (enetc):
- support XDP_REDIRECT for XDP non-linear buffers
- improve reconfig, avoid link flap and waiting for idle
- support MAC Merge layer
- Other NICs:
- sfc/ef100: add basic devlink support for ef100
- ionic: rx_push mode operation (writing descriptors via MMIO)
- bnxt: use the auxiliary bus abstraction for RDMA
- r8169: disable ASPM and reset bus in case of tx timeout
- cpsw: support QSGMII mode for J721e CPSW9G
- cpts: support pulse-per-second output
- ngbe: add an mdio bus driver
- usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
- r8152: handle devices with FW with NCM support
- amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
- virtio-net: support multi buffer XDP
- virtio/vsock: replace virtio_vsock_pkt with sk_buff
- tsnep: XDP support

- Ethernet high-speed switches:
- nVidia/Mellanox (mlxsw):
- add support for latency TLV (in FW control messages)
- Microchip (sparx5):
- separate explicit and implicit traffic forwarding rules, make
the implicit rules always active
- add support for egress DSCP rewrite
- IS0 VCAP support (Ingress Classification)
- IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
etc.)
- ES2 VCAP support (Egress Access Control)
- support for Per-Stream Filtering and Policing (802.1Q,
8.6.5.1)

- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- add MAB (port auth) offload support
- enable PTP receive for mv88e6390
- NXP (ocelot):
- support MAC Merge layer
- support for the the vsc7512 internal copper phys
- Microchip:
- lan9303: convert to PHYLINK
- lan966x: support TC flower filter statistics
- lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
- lan937x: support Credit Based Shaper configuration
- ksz9477: support Energy Efficient Ethernet
- other:
- qca8k: convert to regmap read/write API, use bulk operations
- rswitch: Improve TX timestamp accuracy

- Intel WiFi (iwlwifi):
- EHT (Wi-Fi 7) rate reporting
- STEP equalizer support: transfer some STEP (connection to radio
on platforms with integrated wifi) related parameters from the
BIOS to the firmware.

- Qualcomm 802.11ax WiFi (ath11k):
- IPQ5018 support
- Fine Timing Measurement (FTM) responder role support
- channel 177 support

- MediaTek WiFi (mt76):
- per-PHY LED support
- mt7996: EHT (Wi-Fi 7) support
- Wireless Ethernet Dispatch (WED) reset support
- switch to using page pool allocator

- RealTek WiFi (rtw89):
- support new version of Bluetooth co-existance

- Mobile:
- rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
page_pool: add a comment explaining the fragment counter usage
net: ethtool: fix __ethtool_dev_mm_supported() implementation
ethtool: pse-pd: Fix double word in comments
xsk: add linux/vmalloc.h to xsk.c
sefltests: netdevsim: wait for devlink instance after netns removal
selftest: fib_tests: Always cleanup before exit
net/mlx5e: Align IPsec ASO result memory to be as required by hardware
net/mlx5e: TC, Set CT miss to the specific ct action instance
net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
net/mlx5: Refactor tc miss handling to a single function
net/mlx5: Kconfig: Make tc offload depend on tc skb extension
net/sched: flower: Support hardware miss to tc action
net/sched: flower: Move filter handle initialization earlier
net/sched: cls_api: Support hardware miss to tc action
net/sched: Rename user cookie and act cookie
sfc: fix builds without CONFIG_RTC_LIB
sfc: clean up some inconsistent indentings
net/mlx4_en: Introduce flexible array to silence overflow warning
net: lan966x: Fix possible deadlock inside PTP
net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
...

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# 7ae9fb1b 21-Feb-2023 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.3 merge window.


# 939204e4 21-Feb-2023 Jason Gunthorpe <jgg@nvidia.com>

Merge tag 'v6.2' into iommufd.git for-next

Resolve conflicts from the signature change in iommu_map:

- drivers/infiniband/hw/usnic/usnic_uiom.c
Switch iommu_map_atomic() to iommu_map(.., GFP_AT

Merge tag 'v6.2' into iommufd.git for-next

Resolve conflicts from the signature change in iommu_map:

- drivers/infiniband/hw/usnic/usnic_uiom.c
Switch iommu_map_atomic() to iommu_map(.., GFP_ATOMIC)

- drivers/vfio/vfio_iommu_type1.c
Following indenting change for GFP_KERNEL

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

show more ...


Revision tags: v6.2
# 5661706e 16-Feb-2023 Takashi Iwai <tiwai@suse.de>

Merge branch 'topic/apple-gmux' into for-next

Pull vga_switcheroo fix for Macs

Signed-off-by: Takashi Iwai <tiwai@suse.de>


Revision tags: v6.1.12
# fe33311c 13-Feb-2023 Jason Xing <kernelxing@tencent.com>

net: no longer support SOCK_REFCNT_DEBUG feature

Commit e48c414ee61f ("[INET]: Generalise the TCP sock ID lookup routines")
commented out the definition of SOCK_REFCNT_DEBUG in 2005 and later anothe

net: no longer support SOCK_REFCNT_DEBUG feature

Commit e48c414ee61f ("[INET]: Generalise the TCP sock ID lookup routines")
commented out the definition of SOCK_REFCNT_DEBUG in 2005 and later another
commit 463c84b97f24 ("[NET]: Introduce inet_connection_sock") removed it.
Since we could track all of them through bpf and kprobe related tools
and the feature could print loads of information which might not be
that helpful even under a little bit pressure, the whole feature which
has been inactive for many years is no longer supported.

Link: https://lore.kernel.org/lkml/20230211065153.54116-1-kerneljasonxing@gmail.com/
Suggested-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Wenjia Zhang <wenjia@linux.ibm.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...


# c4a07e26 14-Feb-2023 Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge 6.2-rc8 into usb-next

We need the USB fixes in here for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


# 8697a258 09-Feb-2023 Jakub Kicinski <kuba@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

net/devlink/leftover.c / net/core/devlink.c:
565b4824c39f ("devlink: change port event netdev notifier from per-net to global")
f05

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

net/devlink/leftover.c / net/core/devlink.c:
565b4824c39f ("devlink: change port event netdev notifier from per-net to global")
f05bd8ebeb69 ("devlink: move code to a dedicated directory")
687125b5799c ("devlink: split out core code")
https://lore.kernel.org/all/20230208094657.379f2b1a@canb.auug.org.au/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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# 35674e78 09-Feb-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
"Including fixes from can and ipsec subtrees.

Current release - regres

Merge tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
"Including fixes from can and ipsec subtrees.

Current release - regressions:

- sched: fix off by one in htb_activate_prios()

- eth: mana: fix accessing freed irq affinity_hint

- eth: ice: fix out-of-bounds KASAN warning in virtchnl

Current release - new code bugs:

- eth: mtk_eth_soc: enable special tag when any MAC uses DSA

Previous releases - always broken:

- core: fix sk->sk_txrehash default

- neigh: make sure used and confirmed times are valid

- mptcp: be careful on subflow status propagation on errors

- xfrm: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

- phylink: move phy_device_free() to correctly release phy device

- eth: mlx5:
- fix crash unsetting rx-vlan-filter in switchdev mode
- fix hang on firmware reset
- serialize module cleanup with reload and remove"

* tag 'net-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
selftests: forwarding: lib: quote the sysctl values
net: mscc: ocelot: fix all IPv6 getting trapped to CPU when PTP timestamping is used
rds: rds_rm_zerocopy_callback() use list_first_entry()
net: txgbe: Update support email address
selftests: Fix failing VXLAN VNI filtering test
selftests: mptcp: stop tests earlier
selftests: mptcp: allow more slack for slow test-case
mptcp: be careful on subflow status propagation on errors
mptcp: fix locking for in-kernel listener creation
mptcp: fix locking for setsockopt corner-case
mptcp: do not wait for bare sockets' timeout
net: ethernet: mtk_eth_soc: fix DSA TX tag hwaccel for switch port 0
nfp: ethtool: fix the bug of setting unsupported port speed
txhash: fix sk->sk_txrehash default
net: ethernet: mtk_eth_soc: fix wrong parameters order in __xdp_rxq_info_reg()
net: ethernet: mtk_eth_soc: enable special tag when any MAC uses DSA
net: sched: sch: Fix off by one in htb_activate_prios()
igc: Add ndo_tx_timeout support
net: mana: Fix accessing freed irq affinity_hint
hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC
...

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Revision tags: v6.1.11
# 94817983 08-Feb-2023 Mauro Carvalho Chehab <mchehab@kernel.org>

Merge tag 'v6.2-rc7' into media_tree

Linux 6.2-rc7

* tag 'v6.2-rc7': (1549 commits)
Linux 6.2-rc7
fbcon: Check font dimension limits
efi: fix potential NULL deref in efi_mem_reserve_persisten

Merge tag 'v6.2-rc7' into media_tree

Linux 6.2-rc7

* tag 'v6.2-rc7': (1549 commits)
Linux 6.2-rc7
fbcon: Check font dimension limits
efi: fix potential NULL deref in efi_mem_reserve_persistent
kernel/irq/irqdomain.c: fix memory leak with using debugfs_lookup()
HV: hv_balloon: fix memory leak with using debugfs_lookup()
mtk_sgmii: enable PCS polling to allow SFP work
net: mediatek: sgmii: fix duplex configuration
net: mediatek: sgmii: ensure the SGMII PHY is powered down on configuration
MAINTAINERS: update SCTP maintainers
MAINTAINERS: ipv6: retire Hideaki Yoshifuji
mailmap: add John Crispin's entry
MAINTAINERS: bonding: move Veaceslav Falico to CREDITS
net: openvswitch: fix flow memory leak in ovs_flow_cmd_new
net: ethernet: mtk_eth_soc: disable hardware DSA untagging for second MAC
virtio-net: Keep stop() to follow mirror sequence of open()
efi: Accept version 2 of memory attributes table
ceph: blocklist the kclient when receiving corrupted snap trace
ceph: move mount state enum to super.h
selftests: net: udpgso_bench_tx: Cater for pending datagrams zerocopy benchmarking
selftests: net: udpgso_bench: Fix racing bug between the rx/tx programs
...

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# c11204c7 06-Feb-2023 Kevin Yang <yyd@google.com>

txhash: fix sk->sk_txrehash default

This code fix a bug that sk->sk_txrehash gets its default enable
value from sysctl_txrehash only when the socket is a TCP listener.

We should have sysctl_txrehas

txhash: fix sk->sk_txrehash default

This code fix a bug that sk->sk_txrehash gets its default enable
value from sysctl_txrehash only when the socket is a TCP listener.

We should have sysctl_txrehash to set the default sk->sk_txrehash,
no matter TCP, nor listerner/connector.

Tested by following packetdrill:
0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0 socket(..., SOCK_DGRAM, IPPROTO_UDP) = 4
// SO_TXREHASH == 74, default to sysctl_txrehash == 1
+0 getsockopt(3, SOL_SOCKET, 74, [1], [4]) = 0
+0 getsockopt(4, SOL_SOCKET, 74, [1], [4]) = 0

Fixes: 26859240e4ee ("txhash: Add socket option to control TX hash rethink behavior")
Signed-off-by: Kevin Yang <yyd@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Revision tags: v6.1.10
# 983f507c 01-Feb-2023 Jakub Kicinski <kuba@kernel.org>

Merge branch 'net-support-ipv4-big-tcp'

Xin Long says:

====================
net: support ipv4 big tcp

This is similar to the BIG TCP patchset added by Eric for IPv6:

https://lwn.net/Articles/89

Merge branch 'net-support-ipv4-big-tcp'

Xin Long says:

====================
net: support ipv4 big tcp

This is similar to the BIG TCP patchset added by Eric for IPv6:

https://lwn.net/Articles/895398/

Different from IPv6, IPv4 tot_len is 16-bit long only, and IPv4 header
doesn't have exthdrs(options) for the BIG TCP packets' length. To make
it simple, as David and Paolo suggested, we set IPv4 tot_len to 0 to
indicate this might be a BIG TCP packet and use skb->len as the real
IPv4 total length.

This will work safely, as all BIG TCP packets are GSO/GRO packets and
processed on the same host as they were created; There is no padding
in GSO/GRO packets, and skb->len - network_offset is exactly the IPv4
packet total length; Also, before implementing the feature, all those
places that may get iph tot_len from BIG TCP packets are taken care
with some new APIs:

Patch 1 adds some APIs for iph tot_len setting and getting, which are
used in all these places where IPv4 BIG TCP packets may reach in Patch
2-7, Patch 8 adds a GSO_TCP tp_status for af_packet users, and Patch 9
add new netlink attributes to make IPv4 BIG TCP independent from IPv6
BIG TCP on configuration, and Patch 10 implements this feature.

Note that the similar change as in Patch 2-6 are also needed for IPv6
BIG TCP packets, and will be addressed in another patchset.

The similar performance test is done for IPv4 BIG TCP with 25Gbit NIC
and 1.5K MTU:

No BIG TCP:
for i in {1..10}; do netperf -t TCP_RR -H 192.168.100.1 -- -r80000,80000 -O MIN_LATENCY,P90_LATENCY,P99_LATENCY,THROUGHPUT|tail -1; done
168 322 337 3776.49
143 236 277 4654.67
128 258 288 4772.83
171 229 278 4645.77
175 228 243 4678.93
149 239 279 4599.86
164 234 268 4606.94
155 276 289 4235.82
180 255 268 4418.95
168 241 249 4417.82

Enable BIG TCP:
ip link set dev ens1f0np0 gro_ipv4_max_size 128000 gso_ipv4_max_size 128000
for i in {1..10}; do netperf -t TCP_RR -H 192.168.100.1 -- -r80000,80000 -O MIN_LATENCY,P90_LATENCY,P99_LATENCY,THROUGHPUT|tail -1; done
161 241 252 4821.73
174 205 217 5098.28
167 208 220 5001.43
164 228 249 4883.98
150 233 249 4914.90
180 233 244 4819.66
154 208 219 5004.92
157 209 247 4999.78
160 218 246 4842.31
174 206 217 5080.99

Thanks for the feedback from Eric and David Ahern.
====================

Link: https://lore.kernel.org/r/cover.1674921359.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Revision tags: v6.1.9
# b1a78b9b 28-Jan-2023 Xin Long <lucien.xin@gmail.com>

net: add support for ipv4 big tcp

Similar to Eric's IPv6 BIG TCP, this patch is to enable IPv4 BIG TCP.

Firstly, allow sk->sk_gso_max_size to be set to a value greater than
GSO_LEGACY_MAX_SIZE by n

net: add support for ipv4 big tcp

Similar to Eric's IPv6 BIG TCP, this patch is to enable IPv4 BIG TCP.

Firstly, allow sk->sk_gso_max_size to be set to a value greater than
GSO_LEGACY_MAX_SIZE by not trimming gso_max_size in sk_trim_gso_size()
for IPv4 TCP sockets.

Then on TX path, set IP header tot_len to 0 when skb->len > IP_MAX_MTU
in __ip_local_out() to allow to send BIG TCP packets, and this implies
that skb->len is the length of a IPv4 packet; On RX path, use skb->len
as the length of the IPv4 packet when the IP header tot_len is 0 and
skb->len > IP_MAX_MTU in ip_rcv_core(). As the API iph_set_totlen() and
skb_ip_totlen() are used in __ip_local_out() and ip_rcv_core(), we only
need to update these APIs.

Also in GRO receive, add the check for ETH_P_IP/IPPROTO_TCP, and allows
the merged packet size >= GRO_LEGACY_MAX_SIZE in skb_gro_receive(). In
GRO complete, set IP header tot_len to 0 when the merged packet size
greater than IP_MAX_MTU in iph_set_totlen() so that it can be processed
on RX path.

Note that by checking skb_is_gso_tcp() in API iph_totlen(), it makes
this implementation safe to use iph->len == 0 indicates IPv4 BIG TCP
packets.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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# 57a30218 31-Jan-2023 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.2-rc6' into sched/core, to pick up fixes

Pick up fixes before merging another batch of cpuidle updates.

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


# df5bf3b9 31-Jan-2023 Thomas Zimmermann <tzimmermann@suse.de>

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

Backmerging to get v6.2-rc6.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# aebd8f0c 31-Jan-2023 Daniel Vetter <daniel.vetter@ffwll.ch>

Merge v6.2-rc6 into drm-next

Due to holidays we started -next with more -fixes in-flight than
usual, and people have been asking where they are. Backmerge to get
things better in sync.

Conflicts:
-

Merge v6.2-rc6 into drm-next

Due to holidays we started -next with more -fixes in-flight than
usual, and people have been asking where they are. Backmerge to get
things better in sync.

Conflicts:
- Tiny conflict in drm_fbdev_generic.c between variable rename and
missing error handling that got added.
- Conflict in drm_fb_helper.c between the added call to vgaswitcheroo
in drm_fb_helper_single_fb_probe and a refactor patch that extracted
lots of helpers and incidentally removed the dev local variable.
Readd it to make things compile.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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# 6397859c 26-Jan-2023 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.2-rc5' into locking/core, to pick up fixes

Refresh this branch with the latest locking fixes, before
applying a new series of changes.

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


# 8ef0ca4a 24-Jan-2023 Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Merge back other thermal control material for 6.3.

* thermal: (734 commits)
thermal: core: call put_device() only after device_register() fails
Linux 6.2-rc4
kbuild: Fix CFI hash randomization

Merge back other thermal control material for 6.3.

* thermal: (734 commits)
thermal: core: call put_device() only after device_register() fails
Linux 6.2-rc4
kbuild: Fix CFI hash randomization with KASAN
firmware: coreboot: Check size of table entry and use flex-array
kallsyms: Fix scheduling with interrupts disabled in self-test
ata: pata_cs5535: Don't build on UML
lockref: stop doing cpu_relax in the cmpxchg loop
x86/pci: Treat EfiMemoryMappedIO as reservation of ECAM space
efi: tpm: Avoid READ_ONCE() for accessing the event log
io_uring: lock overflowing for IOPOLL
ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
iommu/mediatek-v1: Fix an error handling path in mtk_iommu_v1_probe()
iommu/iova: Fix alloc iova overflows issue
iommu: Fix refcount leak in iommu_device_claim_dma_owner
iommu/arm-smmu-v3: Don't unregister on shutdown
iommu/arm-smmu: Don't unregister on shutdown
iommu/arm-smmu: Report IOMMU_CAP_CACHE_COHERENCY even betterer
platform/x86: thinkpad_acpi: Fix profile mode display in AMT mode
ALSA: usb-audio: Fix possible NULL pointer dereference in snd_usb_pcm_has_fixed_rate()
platform/x86: int3472/discrete: Ensure the clk/power enable pins are in output mode
...

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Revision tags: v6.1.8, v6.1.7, v6.1.6
# dc7c31e9 13-Jan-2023 Paolo Bonzini <pbonzini@redhat.com>

Merge branch 'kvm-v6.2-rc4-fixes' into HEAD

ARM:

* Fix the PMCR_EL0 reset value after the PMU rework

* Correctly handle S2 fault triggered by a S1 page table walk
by not always classifying it as

Merge branch 'kvm-v6.2-rc4-fixes' into HEAD

ARM:

* Fix the PMCR_EL0 reset value after the PMU rework

* Correctly handle S2 fault triggered by a S1 page table walk
by not always classifying it as a write, as this breaks on
R/O memslots

* Document why we cannot exit with KVM_EXIT_MMIO when taking
a write fault from a S1 PTW on a R/O memslot

* Put the Apple M2 on the naughty list for not being able to
correctly implement the vgic SEIS feature, just like the M1
before it

* Reviewer updates: Alex is stepping down, replaced by Zenghui

x86:

* Fix various rare locking issues in Xen emulation and teach lockdep
to detect them

* Documentation improvements

* Do not return host topology information from KVM_GET_SUPPORTED_CPUID

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# 6f849817 19-Jan-2023 Thomas Zimmermann <tzimmermann@suse.de>

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

Backmerging into drm-misc-next to get DRM accelerator infrastructure,
which is required by ipuv driver.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>


# 65adf3a5 18-Jan-2023 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.2-rc4' into perf/core, to pick up fixes

Move from the -rc1 base to the fresher -rc4 kernel that
has various fixes included, before applying a larger
patchset.

Signed-off-by: Ingo Moln

Merge tag 'v6.2-rc4' into perf/core, to pick up fixes

Move from the -rc1 base to the fresher -rc4 kernel that
has various fixes included, before applying a larger
patchset.

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

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