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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/m68k/fpsp040/smovecr.S
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
Diffstat (limited to '')
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1 files changed, 161 insertions, 0 deletions
diff --git a/arch/m68k/fpsp040/smovecr.S b/arch/m68k/fpsp040/smovecr.S
new file mode 100644
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+|
+| smovecr.sa 3.1 12/10/90
+|
+| The entry point sMOVECR returns the constant at the
+| offset given in the instruction field.
+|
+| Input: An offset in the instruction word.
+|
+| Output: The constant rounded to the user's rounding
+| mode unchecked for overflow.
+|
+| Modified: fp0.
+|
+|
+| Copyright (C) Motorola, Inc. 1990
+| All Rights Reserved
+|
+| For details on the license for this file, please see the
+| file, README, in this same directory.
+
+|SMOVECR idnt 2,1 | Motorola 040 Floating Point Software Package
+
+ |section 8
+
+#include "fpsp.h"
+
+ |xref nrm_set
+ |xref round
+ |xref PIRN
+ |xref PIRZRM
+ |xref PIRP
+ |xref SMALRN
+ |xref SMALRZRM
+ |xref SMALRP
+ |xref BIGRN
+ |xref BIGRZRM
+ |xref BIGRP
+
+FZERO: .long 00000000
+|
+| FMOVECR
+|
+ .global smovcr
+smovcr:
+ bfextu CMDREG1B(%a6){#9:#7},%d0 |get offset
+ bfextu USER_FPCR(%a6){#26:#2},%d1 |get rmode
+|
+| check range of offset
+|
+ tstb %d0 |if zero, offset is to pi
+ beqs PI_TBL |it is pi
+ cmpib #0x0a,%d0 |check range $01 - $0a
+ bles Z_VAL |if in this range, return zero
+ cmpib #0x0e,%d0 |check range $0b - $0e
+ bles SM_TBL |valid constants in this range
+ cmpib #0x2f,%d0 |check range $10 - $2f
+ bles Z_VAL |if in this range, return zero
+ cmpib #0x3f,%d0 |check range $30 - $3f
+ ble BG_TBL |valid constants in this range
+Z_VAL:
+ fmoves FZERO,%fp0
+ rts
+PI_TBL:
+ tstb %d1 |offset is zero, check for rmode
+ beqs PI_RN |if zero, rn mode
+ cmpib #0x3,%d1 |check for rp
+ beqs PI_RP |if 3, rp mode
+PI_RZRM:
+ leal PIRZRM,%a0 |rmode is rz or rm, load PIRZRM in a0
+ bra set_finx
+PI_RN:
+ leal PIRN,%a0 |rmode is rn, load PIRN in a0
+ bra set_finx
+PI_RP:
+ leal PIRP,%a0 |rmode is rp, load PIRP in a0
+ bra set_finx
+SM_TBL:
+ subil #0xb,%d0 |make offset in 0 - 4 range
+ tstb %d1 |check for rmode
+ beqs SM_RN |if zero, rn mode
+ cmpib #0x3,%d1 |check for rp
+ beqs SM_RP |if 3, rp mode
+SM_RZRM:
+ leal SMALRZRM,%a0 |rmode is rz or rm, load SMRZRM in a0
+ cmpib #0x2,%d0 |check if result is inex
+ ble set_finx |if 0 - 2, it is inexact
+ bra no_finx |if 3, it is exact
+SM_RN:
+ leal SMALRN,%a0 |rmode is rn, load SMRN in a0
+ cmpib #0x2,%d0 |check if result is inex
+ ble set_finx |if 0 - 2, it is inexact
+ bra no_finx |if 3, it is exact
+SM_RP:
+ leal SMALRP,%a0 |rmode is rp, load SMRP in a0
+ cmpib #0x2,%d0 |check if result is inex
+ ble set_finx |if 0 - 2, it is inexact
+ bra no_finx |if 3, it is exact
+BG_TBL:
+ subil #0x30,%d0 |make offset in 0 - f range
+ tstb %d1 |check for rmode
+ beqs BG_RN |if zero, rn mode
+ cmpib #0x3,%d1 |check for rp
+ beqs BG_RP |if 3, rp mode
+BG_RZRM:
+ leal BIGRZRM,%a0 |rmode is rz or rm, load BGRZRM in a0
+ cmpib #0x1,%d0 |check if result is inex
+ ble set_finx |if 0 - 1, it is inexact
+ cmpib #0x7,%d0 |second check
+ ble no_finx |if 0 - 7, it is exact
+ bra set_finx |if 8 - f, it is inexact
+BG_RN:
+ leal BIGRN,%a0 |rmode is rn, load BGRN in a0
+ cmpib #0x1,%d0 |check if result is inex
+ ble set_finx |if 0 - 1, it is inexact
+ cmpib #0x7,%d0 |second check
+ ble no_finx |if 0 - 7, it is exact
+ bra set_finx |if 8 - f, it is inexact
+BG_RP:
+ leal BIGRP,%a0 |rmode is rp, load SMRP in a0
+ cmpib #0x1,%d0 |check if result is inex
+ ble set_finx |if 0 - 1, it is inexact
+ cmpib #0x7,%d0 |second check
+ ble no_finx |if 0 - 7, it is exact
+| bra set_finx ;if 8 - f, it is inexact
+set_finx:
+ orl #inx2a_mask,USER_FPSR(%a6) |set inex2/ainex
+no_finx:
+ mulul #12,%d0 |use offset to point into tables
+ movel %d1,L_SCR1(%a6) |load mode for round call
+ bfextu USER_FPCR(%a6){#24:#2},%d1 |get precision
+ tstl %d1 |check if extended precision
+|
+| Precision is extended
+|
+ bnes not_ext |if extended, do not call round
+ fmovemx (%a0,%d0),%fp0-%fp0 |return result in fp0
+ rts
+|
+| Precision is single or double
+|
+not_ext:
+ swap %d1 |rnd prec in upper word of d1
+ addl L_SCR1(%a6),%d1 |merge rmode in low word of d1
+ movel (%a0,%d0),FP_SCR1(%a6) |load first word to temp storage
+ movel 4(%a0,%d0),FP_SCR1+4(%a6) |load second word
+ movel 8(%a0,%d0),FP_SCR1+8(%a6) |load third word
+ clrl %d0 |clear g,r,s
+ lea FP_SCR1(%a6),%a0
+ btstb #sign_bit,LOCAL_EX(%a0)
+ sne LOCAL_SGN(%a0) |convert to internal ext. format
+
+ bsr round |go round the mantissa
+
+ bfclr LOCAL_SGN(%a0){#0:#8} |convert back to IEEE ext format
+ beqs fin_fcr
+ bsetb #sign_bit,LOCAL_EX(%a0)
+fin_fcr:
+ fmovemx (%a0),%fp0-%fp0
+ rts
+
+ |end