configurations and scenarios where the mitigations code is irrelevant
- Other small fixlets and improvements
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Merge tag 'x86_bugs_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 hw mitigation updates from Borislav Petkov:
- Add CONFIG_ option for every hw CPU mitigation. The intent is to
support configurations and scenarios where the mitigations code is
irrelevant
- Other small fixlets and improvements
* tag 'x86_bugs_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bugs: Fix handling when SRSO mitigation is disabled
x86/bugs: Add missing NO_SSB flag
Documentation/srso: Document a method for checking safe RET operates properly
x86/bugs: Add a separate config for GDS
x86/bugs: Remove GDS Force Kconfig option
x86/bugs: Add a separate config for SSB
x86/bugs: Add a separate config for Spectre V2
x86/bugs: Add a separate config for SRBDS
x86/bugs: Add a separate config for Spectre v1
x86/bugs: Add a separate config for RETBLEED
x86/bugs: Add a separate config for L1TF
x86/bugs: Add a separate config for MMIO Stable Data
x86/bugs: Add a separate config for TAA
x86/bugs: Add a separate config for MDS
which include the vendor and finally drop the old ones which hardcode family 6
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Merge tag 'x86_cpu_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpuid updates from Borislav Petkov:
- Add the final conversions to the new Intel VFM CPU model matching
macros which include the vendor and finally drop the old ones which
hardcode family 6
* tag 'x86_cpu_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/vfm: Delete all the *_FAM6_ CPU #defines
x86/cpu/vfm: Delete X86_MATCH_INTEL_FAM6_MODEL[_STEPPING]() macros
extcon: axp288: Switch to new Intel CPU model defines
x86/cpu/intel: Replace PAT erratum model/family magic numbers with symbolic IFM references
future SEV work
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Merge tag 'x86_sev_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov:
- A bunch of cleanups to the sev-guest driver. All in preparation for
future SEV work
* tag 'x86_sev_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
virt: sev-guest: Ensure the SNP guest messages do not exceed a page
virt: sev-guest: Fix user-visible strings
virt: sev-guest: Rename local guest message variables
virt: sev-guest: Replace dev_dbg() with pr_debug()
reported through BIOS' BERT method can report the correct CPU number
the error has been detected on
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Merge tag 'ras_core_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS updates from Borislav Petkov:
- Reorganize the struct mce populating functions so that MCA errors
reported through BIOS' BERT method can report the correct CPU number
the error has been detected on
* tag 'ras_core_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Use mce_prep_record() helpers for apei_smca_report_x86_error()
x86/mce: Define mce_prep_record() helpers for common and per-CPU fields
x86/mce: Rename mce_setup() to mce_prep_record()
model and stepping encoded in the patch revision number
- Fix a silly clang warning
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Merge tag 'x86_microcode_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode loading updates from Borislav Petkov:
- Simplify microcode patches loading on AMD Zen and newer by using the
family, model and stepping encoded in the patch revision number
- Fix a silly clang warning
* tag 'x86_microcode_for_v6.12_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode/AMD: Fix a -Wsometimes-uninitialized clang false positive
x86/microcode/AMD: Use the family,model,stepping encoded in the patch ID
- Fix conversion to physical memory addresses on Intel's Elkhart Lake and Ice
Lake hardware when the system address is above the (Top-Of-Memory) TOM
address
- Pay attention to the memory hole on Zynq UltraScale+ MPSoC DDR controllers
when injecting errors for testing purposes
- Add support for translating normalized error addresses reported by an AMD
memory controller into system physical addresses using an UEFI mechanism
called platform runtime mechanism (PRM).
- The usual cleanups and fixes
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Merge tag 'edac_updates_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- Drop a now obsolete ppc4xx_edac driver
- Fix conversion to physical memory addresses on Intel's Elkhart Lake
and Ice Lake hardware when the system address is above the
(Top-Of-Memory) TOM address
- Pay attention to the memory hole on Zynq UltraScale+ MPSoC DDR
controllers when injecting errors for testing purposes
- Add support for translating normalized error addresses reported by an
AMD memory controller into system physical addresses using an UEFI
mechanism called platform runtime mechanism (PRM).
- The usual cleanups and fixes
* tag 'edac_updates_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC: Drop obsolete PPC4xx driver
EDAC/sb_edac: Fix the compile warning of large frame size
EDAC/{skx_common,i10nm}: Remove the AMAP register for determing DDR5
EDAC/{skx_common,skx,i10nm}: Move the common debug code to skx_common
EDAC/igen6: Fix conversion of system address to physical memory address
EDAC/synopsys: Fix error injection on Zynq UltraScale+
RAS/AMD/ATL: Translate normalized to system physical addresses using PRM
ACPI: PRM: Add PRM handler direct call support
- clean up TTBCR magic numbers and use u32 for this register
- fix clang issue in VFP code leading to kernel oops, caused by
compiler instruction scheduling.
- switch 32-bit Arm to use GENERIC_CPU_DEVICES and use the
arch_cpu_is_hotpluggable() hook.
- pass struct device to arm_iommu_create_mapping() and move over
to use iommu_paging_domain_alloc() rather than iommu_domain_alloc()
- make amba_bustype constant
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux
Pull ARM updates from Russell King:
- clean up TTBCR magic numbers and use u32 for this register
- fix clang issue in VFP code leading to kernel oops, caused by
compiler instruction scheduling.
- switch 32-bit Arm to use GENERIC_CPU_DEVICES and use the
arch_cpu_is_hotpluggable() hook.
- pass struct device to arm_iommu_create_mapping() and move over to use
iommu_paging_domain_alloc() rather than iommu_domain_alloc()
- make amba_bustype constant
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
ARM: 9418/1: dma-mapping: Use iommu_paging_domain_alloc()
ARM: 9417/1: dma-mapping: Pass device to arm_iommu_create_mapping()
ARM: 9416/1: amba: make amba_bustype constant
ARM: 9412/1: Convert to arch_cpu_is_hotpluggable()
ARM: 9411/1: Switch over to GENERIC_CPU_DEVICES using arch_register_cpu()
ARM: 9410/1: vfp: Use asm volatile in fmrx/fmxr macros
ARM: 9409/1: mmu: Do not use magic number for TTBCR settings
The zero-copy changes are relatively significant, but regression risk
should be contained. The feature needs to be used to cause trouble.
The new code did trigger a PowerPC64 bug with GCC 14:
https://lore.kernel.org/netdev/20240913125302.0a06b4c7@canb.auug.org.au/
a fix for which Michael will bring via his tree:
https://lore.kernel.org/all/87jzffq9ge.fsf@mail.lhotse/
Unideal, not sure if you'll be willing to pull without that fix but
since we caught this recently I figured we'll defer to you during
the MW instead of trying to fix it cross-tree.
Also it feels like we got an order of magnitude more semi-automated
"refactoring" chaff than usual, I wonder if it's just us.
Core & protocols
----------------
- Support Device Memory TCP, ability to zero-copy receive TCP payloads
to a DMABUF region of memory while packet headers land separately
in normal kernel buffers, and TCP processes then as usual.
- The ability to read the PTP PHC (Physical Hardware Clock) alongside
MONOTONIC_RAW timestamps with PTP_SYS_OFFSET_EXTENDED. Previously
only CLOCK_REALTIME was supported.
- Allow matching on all bits of IP DSCP for routing decisions.
Previously we only supported on matching TOS bits in IPv4 which
is a narrower interpretation of the same header field.
- Increase the range of weights used for multi-path routing from
8 bits to 16 bits.
- Add support for IPv6 PIO p flag in the Prefix Information Option
per draft-ietf-6man-pio-pflag.
- IPv6 IOAM6 support for new tunsrc encap mode for better performance.
- Detect destinations which blackhole MPTCP traffic and avoid initiating
MPTCP connections to them for a certain period of time, 1h by default.
- Improve IPsec control path performance by removing the inexact
policies list.
- AF_VSOCK: add support for SIOCOUTQ ioctl.
- Add enum for reasons TCP reset was sent for easier tracing.
- Add SMC ringbufs usage statistics.
Drivers
-------
- Handle netconsole setup failures more gracefully, don't fail loading,
retain the specified target as disabled.
- Extend bonding's IPsec offload pass thru capabilities (ESN, stats).
Filtering
---------
- Add TCP_BPF_SOCK_OPS_CB_FLAGS to bpf_*sockopt() to address the case
when long-lived sockets miss a chance to set additional callbacks
if a sockops program was not attached early in their lifetime.
- Support using BPF skb helpers in tracepoints.
- Conntrack Netlink: support CTA_FILTER for flush.
- Improve SCTP support in nfnetlink_queue.
- Improve performance of large nftables flush transactions.
Things we sprinkled into general kernel code
--------------------------------------------
- selftests: support setting an "interpreter" for script files;
make it easy to run as separate cases tests where one "interpreter"
is fed various test descriptions (in our case packet sequences).
Driver API
----------
- Extend core and ethtool APIs to support many PHYs connected to a single
interface (PHY topologies).
- Extend cable diagnostics to specify whether Time Domain Reflectometry
(TDR) or Active Link Cable Diagnostic (ALCD) was used.
- Add library for implementing MAC-PHY Ethernet drivers for SPI devices
compatible with Open Alliance 10BASE-T1x MAC-PHY Serial Interface (TC6)
standard.
- Add helpers to the PHY framework, for PHYs following the Open Alliance
standards:
- 1000BaseT1 link settings
- cable test and diagnostics
- Support listing / dumping all allocated RSS contexts.
- Add configuration for frequency Embedded SYNC in DPLL, which magically
embeds sync pulses into Ethernet signaling.
Device drivers
--------------
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- use better FW APIs for queue reset
- support QOS and TPID settings for the SR-IOV VLAN
- support dynamic MSI-X allocation
- Intel (100G, ice, idpf):
- ice: support PCIe subfunctions
- iavf: add support for TC U32 filters on VFs
- ice: support Embedded SYNC in DPLL
- nVidia/Mellanox (mlx5):
- support HW managed steering tables
- support PCIe PTM cross timestamping
- AMD/Pensando:
- ionic: use page_pool to increase Rx performance
- Cisco (enic):
- report per-queue statistics
- Ethernet virtual:
- Microsoft vNIC:
- mana: support configuring ring length
- netvsc: enable more channels on systems with many CPUs
- IBM veth:
- optimize polling to improve TCP_RR performance
- optimize performance of Tx handling
- VirtIO net:
- synchronize the operstate with the admin state to allow a lower
virtio-net to propagate the link status to an upper device like
macvlan
- Ethernet NICs consumer, and embedded:
- Add driver for Realtek automotive PCIe devices (RTL9054, RTL9068,
RTL9072, RTL9075, RTL9068, RTL9071)
- Add driver for Microchip LAN8650/1 10BASE-T1S MAC-PHY.
- Microchip:
- lan743x: use phylink - support WOL, EEE, pause, link settings
- add Wake-on-LAN support for KSZ87xx family
- add KSZ8895/KSZ8864 switch support
- factor out FDMA code and use it in sparx5 and lan966x
(including DCB support in both)
- Synopsys (stmmac):
- support frame preemption (configured using TC and ethtool)
- support Loongson DWMAC (GMAC v3.73)
- support RockChips RK3576 DWMAC
- TI:
- am65-cpsw: add multi queue RX support
- icssg-prueth: HSR offload support
- Cadence (macb):
- enable software (hrtimer based) IRQ coalescing by default
- Xilinx (axinet):
- expose HW statistics
- improve multicast filtering
- relax Rx checksum offload constraints
- MediaTek:
- mt7530: add EN7581 support
- Aspeed (ftgmac100):
- report link speed and duplex
- Intel:
- igc: add mqprio offload
- igc: report EEE configuration
- RealTek (r8169):
- add support for RTL8126A rev.b
- Vitesse (vsc73xx):
- implement FDB add/del/dump operations
- Freescale (fs_enet):
- use phylink
- Ethernet PHYs:
- vitesse: implement downshift and MDI-X in vsc73xx PHYs
- microchip: support LAN887x, supporting IEEE 802.3bw (100BASE-T1)
and IEEE 802.3bp (1000BASE-T1) specifications
- add Applied Micro QT2025 PHY driver (in Rust)
- add Motorcomm yt8821 2.5G Ethernet PHY driver
- CAN:
- add driver for Rockchip RK3568 CAN-FD controller
- flexcan: add wakeup support for imx95
- kvaser_usb: set hardware timestamp on transmitted packets
- WiFi:
- mac80211/cfg80211:
- EHT rate support in AQL airtime fairness
- handle DFS (radar detection) per link in Multi-Link Operation
- RealTek (rtw89):
- support RTL8852BT and 8852BE-VT (WiFi 6)
- support hardware rfkill
- support HW encryption in unicast management frames
- support Wake-on-WLAN with supported network detection
- RealTek (rtw89):
- improve Rx performance by using USB frame aggregation
- support USB 3 with RTL8822CU/RTL8822BU
- Intel (iwlwifi/mvm):
- offload RLC/SMPS functionality to firmware
- Marvell (mwifiex):
- add host based MLME to enable WPA3
- Bluetooth:
- add support for Amlogic HCI UART protocol
- add support for ISO data/packets to Intel and NXP drivers
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"The zero-copy changes are relatively significant, but regression risk
should be contained. The feature needs to be used to cause trouble.
Also it feels like we got an order of magnitude more semi-automated
"refactoring" chaff than usual, I wonder if it's just us.
Core & protocols:
- Support Device Memory TCP, ability to zero-copy receive TCP
payloads to a DMABUF region of memory while packet headers land
separately in normal kernel buffers, and TCP processes then as
usual.
- The ability to read the PTP PHC (Physical Hardware Clock) alongside
MONOTONIC_RAW timestamps with PTP_SYS_OFFSET_EXTENDED. Previously
only CLOCK_REALTIME was supported.
- Allow matching on all bits of IP DSCP for routing decisions.
Previously we only supported on matching TOS bits in IPv4 which is
a narrower interpretation of the same header field.
- Increase the range of weights used for multi-path routing from
8 bits to 16 bits.
- Add support for IPv6 PIO p flag in the Prefix Information Option
per draft-ietf-6man-pio-pflag.
- IPv6 IOAM6 support for new tunsrc encap mode for better
performance.
- Detect destinations which blackhole MPTCP traffic and avoid
initiating MPTCP connections to them for a certain period of time,
1h by default.
- Improve IPsec control path performance by removing the inexact
policies list.
- AF_VSOCK: add support for SIOCOUTQ ioctl.
- Add enum for reasons TCP reset was sent for easier tracing.
- Add SMC ringbufs usage statistics.
Drivers:
- Handle netconsole setup failures more gracefully, don't fail
loading, retain the specified target as disabled.
- Extend bonding's IPsec offload pass thru capabilities (ESN, stats).
Filtering:
- Add TCP_BPF_SOCK_OPS_CB_FLAGS to bpf_*sockopt() to address the case
when long-lived sockets miss a chance to set additional callbacks
if a sockops program was not attached early in their lifetime.
- Support using BPF skb helpers in tracepoints.
- Conntrack Netlink: support CTA_FILTER for flush.
- Improve SCTP support in nfnetlink_queue.
- Improve performance of large nftables flush transactions.
Things we sprinkled into general kernel code:
- selftests: support setting an "interpreter" for script files; make
it easy to run as separate cases tests where one "interpreter" is
fed various test descriptions (in our case packet sequences).
Driver API:
- Extend core and ethtool APIs to support many PHYs connected to a
single interface (PHY topologies).
- Extend cable diagnostics to specify whether Time Domain
Reflectometry (TDR) or Active Link Cable Diagnostic (ALCD) was
used.
- Add library for implementing MAC-PHY Ethernet drivers for SPI
devices compatible with Open Alliance 10BASE-T1x MAC-PHY Serial
Interface (TC6) standard.
- Add helpers to the PHY framework, for PHYs following the Open
Alliance standards:
- 1000BaseT1 link settings
- cable test and diagnostics
- Support listing / dumping all allocated RSS contexts.
- Add configuration for frequency Embedded SYNC in DPLL, which
magically embeds sync pulses into Ethernet signaling.
Device drivers:
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- use better FW APIs for queue reset
- support QOS and TPID settings for the SR-IOV VLAN
- support dynamic MSI-X allocation
- Intel (100G, ice, idpf):
- ice: support PCIe subfunctions
- iavf: add support for TC U32 filters on VFs
- ice: support Embedded SYNC in DPLL
- nVidia/Mellanox (mlx5):
- support HW managed steering tables
- support PCIe PTM cross timestamping
- AMD/Pensando:
- ionic: use page_pool to increase Rx performance
- Cisco (enic):
- report per-queue statistics
- Ethernet virtual:
- Microsoft vNIC:
- mana: support configuring ring length
- netvsc: enable more channels on systems with many CPUs
- IBM veth:
- optimize polling to improve TCP_RR performance
- optimize performance of Tx handling
- VirtIO net:
- synchronize the operstate with the admin state to allow a
lower virtio-net to propagate the link status to an upper
device like macvlan
- Ethernet NICs consumer, and embedded:
- Add driver for Realtek automotive PCIe devices (RTL9054,
RTL9068, RTL9072, RTL9075, RTL9068, RTL9071)
- Add driver for Microchip LAN8650/1 10BASE-T1S MAC-PHY.
- Microchip:
- lan743x: use phylink - support WOL, EEE, pause, link settings
- add Wake-on-LAN support for KSZ87xx family
- add KSZ8895/KSZ8864 switch support
- factor out FDMA code and use it in sparx5 and lan966x
(including DCB support in both)
- Synopsys (stmmac):
- support frame preemption (configured using TC and ethtool)
- support Loongson DWMAC (GMAC v3.73)
- support RockChips RK3576 DWMAC
- TI:
- am65-cpsw: add multi queue RX support
- icssg-prueth: HSR offload support
- Cadence (macb):
- enable software (hrtimer based) IRQ coalescing by default
- Xilinx (axinet):
- expose HW statistics
- improve multicast filtering
- relax Rx checksum offload constraints
- MediaTek:
- mt7530: add EN7581 support
- Aspeed (ftgmac100):
- report link speed and duplex
- Intel:
- igc: add mqprio offload
- igc: report EEE configuration
- RealTek (r8169):
- add support for RTL8126A rev.b
- Vitesse (vsc73xx):
- implement FDB add/del/dump operations
- Freescale (fs_enet):
- use phylink
- Ethernet PHYs:
- vitesse: implement downshift and MDI-X in vsc73xx PHYs
- microchip: support LAN887x, supporting IEEE 802.3bw (100BASE-T1)
and IEEE 802.3bp (1000BASE-T1) specifications
- add Applied Micro QT2025 PHY driver (in Rust)
- add Motorcomm yt8821 2.5G Ethernet PHY driver
- CAN:
- add driver for Rockchip RK3568 CAN-FD controller
- flexcan: add wakeup support for imx95
- kvaser_usb: set hardware timestamp on transmitted packets
- WiFi:
- mac80211/cfg80211:
- EHT rate support in AQL airtime fairness
- handle DFS (radar detection) per link in Multi-Link Operation
- RealTek (rtw89):
- support RTL8852BT and 8852BE-VT (WiFi 6)
- support hardware rfkill
- support HW encryption in unicast management frames
- support Wake-on-WLAN with supported network detection
- RealTek (rtw89):
- improve Rx performance by using USB frame aggregation
- support USB 3 with RTL8822CU/RTL8822BU
- Intel (iwlwifi/mvm):
- offload RLC/SMPS functionality to firmware
- Marvell (mwifiex):
- add host based MLME to enable WPA3
- Bluetooth:
- add support for Amlogic HCI UART protocol
- add support for ISO data/packets to Intel and NXP drivers"
* tag 'net-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1303 commits)
net/mlx5: HWS, check the correct variable in hws_send_ring_alloc_sq()
netfilter: nft_socket: Fix a NULL vs IS_ERR() bug in nft_socket_cgroup_subtree_level()
ice: Fix a NULL vs IS_ERR() check in probe()
ice: Fix a couple NULL vs IS_ERR() bugs
net: ethernet: fs_enet: Make the per clock optional
net: ti: icssg-prueth: Add multicast filtering support in HSR mode
net: ti: icssg-prueth: Enable HSR Tx duplication, Tx Tag and Rx Tag offload
net: ti: icssg-prueth: Add support for HSR frame forward offload
net: ti: icssg-prueth: Stop hardcoding def_inc
net: ti: icss-iep: Move icss_iep structure
net: ibm: emac: get rid of wol_irq
net: ibm: emac: remove all waiting code
net: ibm: emac: replace of_get_property
net: ibm: emac: use netdev's phydev directly
net: ibm: emac: use devm for register_netdev
net: ibm: emac: remove mii_bus with devm
net: ibm: emac: use devm for of_iomap
net: ibm: emac: manage emac_irq with devm
net: ibm: emac: use devm for alloc_etherdev
octeontx2-af: debugfs: Add Channel info to RPM map
...
Alexandre Ghiti <alexghiti@rivosinc.com> says:
In RISC-V, after a new mapping is established, a sfence.vma needs to be
emitted for different reasons:
- if the uarch caches invalid entries, we need to invalidate it otherwise
we would trap on this invalid entry,
- if the uarch does not cache invalid entries, a reordered access could fail
to see the new mapping and then trap (sfence.vma acts as a fence).
We can actually avoid emitting those (mostly) useless and costly sfence.vma
by handling the traps instead:
- for new kernel mappings: only vmalloc mappings need to be taken care of,
other new mapping are rare and already emit the required sfence.vma if
needed.
That must be achieved very early in the exception path as explained in
patch 3, and this also fixes our fragile way of dealing with vmalloc faults.
- for new user mappings: Svvptc makes update_mmu_cache() a no-op but we can
take some gratuitous page faults (which are very unlikely though).
Patch 1 and 2 introduce Svvptc extension probing.
On our uarch that does not cache invalid entries and a 6.5 kernel, the
gains are measurable:
* Kernel boot: 6%
* ltp - mmapstress01: 8%
* lmbench - lat_pagefault: 20%
* lmbench - lat_mmap: 5%
Here are the corresponding numbers of sfence.vma emitted:
* Ubuntu boot to login:
Before: ~630k sfence.vma
After: ~200k sfence.vma
* ltp - mmapstress01
Before: ~45k
After: ~6.3k
* lmbench - lat_pagefault
Before: ~665k
After: 832 (!)
* lmbench - lat_mmap
Before: ~546k
After: 718 (!)
Thanks to Ved and Matt Evans for triggering the discussion that led to
this patchset!
* b4-shazam-merge:
riscv: Stop emitting preventive sfence.vma for new userspace mappings with Svvptc
riscv: Stop emitting preventive sfence.vma for new vmalloc mappings
dt-bindings: riscv: Add Svvptc ISA extension description
riscv: Add ISA extension parsing for Svvptc
Link: https://lore.kernel.org/r/20240717060125.139416-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
commit 5944ce092b (arch_topology: Build cacheinfo from primary CPU)
removed the init_cache_level() function from arch/riscv/kernel/cacheinfo.c
and relies on the init_cpu_topology() function in drivers/base/arch_topology.c
to call fetch_cache_info() which in turn calls init_of_cache_level() to
populate the cache hierarchy information. However, init_cpu_topology() is only
called from smpboot.c:smp_prepare_cpus() and thus only available when
CONFIG_SMP is defined.
To support non-SMP enabled kernels to still detect cache hierarchy, we add back
the init_cache_level() function. The init_level_allocate_ci() function handles
this gracefully on SMP-enabled kernels anyway where fetch_cache_info() is
called from init_cpu_topology() earlier in the boot phase.
Signed-off-by: Steffen Persvold <spersvold@gmail.com>
Link: https://lore.kernel.org/r/20240707003515.5058-1-spersvold@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Jisheng Zhang <jszhang@kernel.org> says:
commit 76329c6939 ("riscv: Use SYM_*() assembly macros instead
of deprecated ones"), most riscv has been to converted the new style
SYM_ assembler annotations. The remaining one is sifive's
errata_cip_453.S, so convert to new style SYM_ annotations as well.
After that select ARCH_USE_SYM_ANNOTATIONS.
* b4-shazam-merge:
riscv: select ARCH_USE_SYM_ANNOTATIONS
riscv: errata: sifive: Use SYM_*() assembly macros
Link: https://lore.kernel.org/r/20240709160536.3690-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
The macro CONFIG_RISCV_PMU must have been defined when riscv_pmu.c gets
compiled, so this patch removes the redundant check.
Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Link: https://lore.kernel.org/r/20240708121224.1148154-1-xiao.w.wang@intel.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Jinjie Ruan <ruanjinjie@huawei.com> says:
Add RISC-V USER_STACKTRACE support, and fix the fp alignment bug
in perf_callchain_user() by the way as Björn pointed out.
* b4-shazam-merge:
riscv: stacktrace: Add USER_STACKTRACE support
riscv: Fix fp alignment bug in perf_callchain_user()
Link: https://lore.kernel.org/r/20240708032847.2998158-1-ruanjinjie@huawei.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This is used in poison.h for poison pointer offset. Based on current
SV39, SV48 and SV57 vm layout, 0xdead000000000000 is a proper value
that is not mappable, this can avoid potentially turning an oops to
an expolit.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Fixes: fbe934d69e ("RISC-V: Build Infrastructure")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240705170210.3236-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This reverts commit fa247089de.
The following sequence of commands causes a livelock - there will be
workqueue process looping and consuming 100% CPU:
dmsetup create --notable test
truncate -s 1MiB testdata
losetup /dev/loop0 testdata
dmsetup load test --table '0 2048 linear /dev/loop0 0'
dd if=/dev/zero of=/dev/dm-0 bs=16k count=1 conv=fdatasync
The livelock is caused by the commit fa247089de. The commit claims that
it fixes a race condition, however, it is unknown what the actual race
condition is and what program is involved in the race condition.
When the inactive table is loaded, the nodes /dev/dm-0 and
/sys/block/dm-0 are created. /dev/dm-0 has zero size at this point. When
the device is suspended and resumed, the nodes /dev/mapper/test and
/dev/disk/* are created.
If some program opens a block device before it is created by dmsetup or
lvm, the program is buggy, so dm could just report an error as it used to
do before.
Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: fa247089de ("dm: requeue IO if mapping table not yet available")
list_head can be initialized automatically with LIST_HEAD()
instead of calling INIT_LIST_HEAD(). No functional impact.
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
SFU since its (first) version 3.0 supports AF_LOCAL sockets and stores them
on filesytem as system file with one zero byte. Add support for detecting
this SFU socket type into cifs_sfu_type() function.
With this change cifs_sfu_type() would correctly detect all special file
types created by SFU: fifo, socket, symlink, block and char.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
For debugging purposes it is a good idea to show detected SFU type also for
Fifo. Debug message is already print for all other special types.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
SFU types IntxCHR and IntxBLK are 8 bytes with zero as last byte. Make it
explicit in memcpy and memset calls, so the zero byte is visible in the
code (and not hidden as string trailing nul byte).
It is important for reader to show the last byte for block and char types
because it differs from the last byte of symlink type (which has it 0x01).
Also it is important to show that the type is not nul-term string, but
rather 8 bytes (with some printable bytes).
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Currently when sfu mount option is specified then CIFS can recognize SFU
symlink, but is not able to read symlink target location. readlink()
syscall just returns that operation is not supported.
Implement this missing functionality in cifs_sfu_type() function. Read
target location of SFU-style symlink, parse it and fill into fattr's
cf_symlink_target member.
SFU-style symlink is file which has system attribute set and file content
is buffer "IntxLNK\1" (8th byte is 0x01) followed by the target location
encoded in little endian UCS-2/UTF-16. This format was introduced in
Interix 3.0 subsystem, as part of the Microsoft SFU 3.0 and is used also by
all later versions. Previous versions had no symlink support.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
SFU symlinks have 8 byte prefix: "IntxLNK\1".
So check also the last 8th byte 0x01.
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Using uninitialized value "bkt" when calling "kfree"
Fixes: 13b68d44990d ("smb: client: compress: LZ77 code improvements cleanup")
Signed-off-by: Qianqiang Liu <qianqiang.liu@163.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
The dst pointer may not be initialized when calling kvfree(dst)
Fixes: 13b68d44990d9 ("smb: client: compress: LZ77 code improvements cleanup")
Signed-off-by: Qianqiang Liu <qianqiang.liu@163.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
- Check data compressibility with some heuristics (copied from
btrfs):
- should_compress() final decision is is_compressible(data)
- Cleanup compress/lz77.h leaving only lz77_compress() exposed:
- Move parts to compress/lz77.c, while removing the rest of it
because they were either unused, used only once, were
implemented wrong (thanks to David Howells for the help)
- Updated the compression parameters (still compatible with
Windows implementation) trading off ~20% compression ratio
for ~40% performance:
- min match len: 3 -> 4
- max distance: 8KiB -> 1KiB
- hash table type: u32 * -> u64 *
Known bugs:
This implementation currently works fine in general, but breaks with
some payloads used during testing. Investigation ongoing, to be
fixed in a next commit.
Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Co-developed-by: David Howells <dhowells@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
On smb2_async_writev(), set CIFS_COMPRESS_REQ on request flags if
should_compress() returns true.
On smb_send_rqst() check the flags, and compress and send the request to
the server.
(*) If the compression fails with -EMSGSIZE (i.e. compressed size is >=
uncompressed size), the original uncompressed request is sent instead.
Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
Move SMB3.1.1 compression code into experimental config option,
and fix the compress mount option. Implement unchained LZ77
"plain" compression algorithm as per MS-XCA specification
section "2.3 Plain LZ77 Compression Algorithm Details".
Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
The cifs_dir_open() have been removed since
commit 737b758c96 ("[PATCH] cifs: character mapping of special
characters (part 3 of 3)"), and now it is useless, so remove it.
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Use the min() macro to simplify the function and improve
its readability.
Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Use ERR_CAST() as it is designed for casting an error pointer to
another type.
This macro uses the __force and __must_check modifiers, which are used
to tell the compiler to check for errors where this macro is used.
Signed-off-by: Yuesong Li <liyuesong@vivo.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Explained why the typo was not corrected.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
There are only 4 different definitions between the client and server:
- STATUS_SERVER_UNAVAILABLE: from client/smb2status.h
- STATUS_FILE_NOT_AVAILABLE: from client/smb2status.h
- STATUS_NO_PREAUTH_INTEGRITY_HASH_OVERLAP: from server/smbstatus.h
- STATUS_INVALID_LOCK_RANGE: from server/smbstatus.h
Rename client/smb2status.h to common/smb2status.h, and merge the
2 different definitions of server to common header file.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
In order to maintain the code more easily, move duplicate definitions
to new common header file.
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Preparation for moving acl definitions to new common header file.
Use the following shell command to rename:
find fs/smb/client -type f -exec sed -i \
's/struct cifs_ace/struct smb_ace/g' {} +
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Preparation for moving acl definitions to new common header file.
Use the following shell command to rename:
find fs/smb/client -type f -exec sed -i \
's/struct cifs_acl/struct smb_acl/g' {} +
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Preparation for moving acl definitions to new common header file.
Use the following shell command to rename:
find fs/smb/client -type f -exec sed -i \
's/struct cifs_sid/struct smb_sid/g' {} +
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Preparation for moving acl definitions to new common header file.
Use the following shell command to rename:
find fs/smb/client -type f -exec sed -i \
's/struct cifs_ntsd/struct smb_ntsd/g' {} +
Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
There is a copy and paste bug so this code checks "sq->dep_wqe" where
"sq->wr_priv" was intended. It could result in a NULL pointer
dereference.
Fixes: 2ca62599aa ("net/mlx5: HWS, added send engine and context handling")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/da822315-02b7-4f5b-9c86-0d5176c5069d@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The cgroup_get_from_path() function never returns NULL, it returns error
pointers. Update the error handling to match.
Fixes: 7f3287db65 ("netfilter: nft_socket: make cgroupsv2 matching work with namespaces")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Florian Westphal <fw@strlen.de>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://patch.msgid.link/bbc0c4e0-05cc-4f44-8797-2f4b3920a820@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The ice_allocate_sf() function returns error pointers on error. It
doesn't return NULL. Update the check to match.
Fixes: 177ef7f1e2 ("ice: base subfunction aux driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/6951d217-ac06-4482-a35d-15d757fd90a3@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The ice_repr_create() function returns error pointers. It never returns
NULL. Fix the callers to check for IS_ERR().
Fixes: 977514fb0f ("ice: create port representor for SF")
Fixes: 415db8399d ("ice: make representor code generic")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/7f7aeb91-8771-47b8-9275-9d9f64f947dd@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Some platforms that use fs_enet don't have the PER register clock. This
optional dependency on the clock was incorrectly made mandatory when
switching to devm_ accessors.
Reported-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Closes: https://lore.kernel.org/netdev/4e4defa9-ef2f-4ff1-95ca-6627c24db20c@wanadoo.fr/
Fixes: c614acf6e8 ("net: ethernet: fs_enet: simplify clock handling with devm accessors")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/20240914081821.209130-1-maxime.chevallier@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If we change it to tracking ubuf->start + ubuf->len, then we can reduce
the size of struct io_mapped_ubuf by another 4 bytes, effectively 8
bytes, as a hole is eliminated too.
This shrinks io_mapped_ubuf to 32 bytes.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
We don't really need to cache this, let's reclaim 8 bytes from struct
io_mapped_ubuf and just calculate it when we need it. The only hot path
here is io_import_fixed().
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The use of for_each_child_of_node_scoped() has been spread into the
subsystem drivers. Aside from that, a couple of exit path have been
fixed (mtk, denali), the TI GPMC bindings have been enhanced to comply
with up-to-date partition descriptions and as always there is a load of
small and misc fixes.
* SPI-NAND changes
The most impacting series this cycle is bringing support for continuous
reads in the SPI-NAND subsystem. This is a feature already merged in the
raw NAND subsystem which allows optimizing the internal fetch times in
the chip while reading sequential pages within an eraseblock. For now
only Macronix NANDs benefit from this feature. While we are talking
about Macronix, some of their chip need an explicit action for selecting
a different plane, and support for it has also been brought.
The bitflip threshold has also been set to the same arbitrary level as
in the raw NAND subsystem to optimize wear leveling decisions, and
finally support for a new Winbond chip has been added.
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Merge tag 'nand/for-6.12' into mtd/next
* Raw NAND changes
The use of for_each_child_of_node_scoped() has been spread into the
subsystem drivers. Aside from that, a couple of exit path have been
fixed (mtk, denali), the TI GPMC bindings have been enhanced to comply
with up-to-date partition descriptions and as always there is a load of
small and misc fixes.
* SPI-NAND changes
The most impacting series this cycle is bringing support for continuous
reads in the SPI-NAND subsystem. This is a feature already merged in the
raw NAND subsystem which allows optimizing the internal fetch times in
the chip while reading sequential pages within an eraseblock. For now
only Macronix NANDs benefit from this feature. While we are talking
about Macronix, some of their chip need an explicit action for selecting
a different plane, and support for it has also been brought.
The bitflip threshold has also been set to the same arbitrary level as
in the raw NAND subsystem to optimize wear leveling decisions, and
finally support for a new Winbond chip has been added.
Notable changes:
- Add Write Protect support for N25Q064A.
- New flash support for Zetta ZD25Q128C and Spansion S28HS256T.
- Fix a NULL dereference in probe path for flashes without a name. The
probe path tries to access the name without checking its existence
first. S28HS256T is the first flash to define its entry without a
name, uncovering this issue.
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Merge tag 'spi-nor/for-6.12' into mtd/next
SPI NOR changes for 6.12
Notable changes:
- Add Write Protect support for N25Q064A.
- New flash support for Zetta ZD25Q128C and Spansion S28HS256T.
- Fix a NULL dereference in probe path for flashes without a name. The
probe path tries to access the name without checking its existence
first. S28HS256T is the first flash to define its entry without a
name, uncovering this issue.
