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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/m68k/fpsp040/binstr.S | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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 'arch/m68k/fpsp040/binstr.S')
-rw-r--r-- | arch/m68k/fpsp040/binstr.S | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/arch/m68k/fpsp040/binstr.S b/arch/m68k/fpsp040/binstr.S new file mode 100644 index 000000000..8a05ba92a --- /dev/null +++ b/arch/m68k/fpsp040/binstr.S @@ -0,0 +1,139 @@ +| +| binstr.sa 3.3 12/19/90 +| +| +| Description: Converts a 64-bit binary integer to bcd. +| +| Input: 64-bit binary integer in d2:d3, desired length (LEN) in +| d0, and a pointer to start in memory for bcd characters +| in d0. (This pointer must point to byte 4 of the first +| lword of the packed decimal memory string.) +| +| Output: LEN bcd digits representing the 64-bit integer. +| +| Algorithm: +| The 64-bit binary is assumed to have a decimal point before +| bit 63. The fraction is multiplied by 10 using a mul by 2 +| shift and a mul by 8 shift. The bits shifted out of the +| msb form a decimal digit. This process is iterated until +| LEN digits are formed. +| +| A1. Init d7 to 1. D7 is the byte digit counter, and if 1, the +| digit formed will be assumed the least significant. This is +| to force the first byte formed to have a 0 in the upper 4 bits. +| +| A2. Beginning of the loop: +| Copy the fraction in d2:d3 to d4:d5. +| +| A3. Multiply the fraction in d2:d3 by 8 using bit-field +| extracts and shifts. The three msbs from d2 will go into +| d1. +| +| A4. Multiply the fraction in d4:d5 by 2 using shifts. The msb +| will be collected by the carry. +| +| A5. Add using the carry the 64-bit quantities in d2:d3 and d4:d5 +| into d2:d3. D1 will contain the bcd digit formed. +| +| A6. Test d7. If zero, the digit formed is the ms digit. If non- +| zero, it is the ls digit. Put the digit in its place in the +| upper word of d0. If it is the ls digit, write the word +| from d0 to memory. +| +| A7. Decrement d6 (LEN counter) and repeat the loop until zero. +| +| Implementation Notes: +| +| The registers are used as follows: +| +| d0: LEN counter +| d1: temp used to form the digit +| d2: upper 32-bits of fraction for mul by 8 +| d3: lower 32-bits of fraction for mul by 8 +| d4: upper 32-bits of fraction for mul by 2 +| d5: lower 32-bits of fraction for mul by 2 +| d6: temp for bit-field extracts +| d7: byte digit formation word;digit count {0,1} +| a0: pointer into memory for packed bcd string formation +| + +| 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. + +|BINSTR idnt 2,1 | Motorola 040 Floating Point Software Package + + |section 8 + +#include "fpsp.h" + + .global binstr +binstr: + moveml %d0-%d7,-(%a7) +| +| A1: Init d7 +| + moveql #1,%d7 |init d7 for second digit + subql #1,%d0 |for dbf d0 would have LEN+1 passes +| +| A2. Copy d2:d3 to d4:d5. Start loop. +| +loop: + movel %d2,%d4 |copy the fraction before muls + movel %d3,%d5 |to d4:d5 +| +| A3. Multiply d2:d3 by 8; extract msbs into d1. +| + bfextu %d2{#0:#3},%d1 |copy 3 msbs of d2 into d1 + asll #3,%d2 |shift d2 left by 3 places + bfextu %d3{#0:#3},%d6 |copy 3 msbs of d3 into d6 + asll #3,%d3 |shift d3 left by 3 places + orl %d6,%d2 |or in msbs from d3 into d2 +| +| A4. Multiply d4:d5 by 2; add carry out to d1. +| + asll #1,%d5 |mul d5 by 2 + roxll #1,%d4 |mul d4 by 2 + swap %d6 |put 0 in d6 lower word + addxw %d6,%d1 |add in extend from mul by 2 +| +| A5. Add mul by 8 to mul by 2. D1 contains the digit formed. +| + addl %d5,%d3 |add lower 32 bits + nop |ERRATA ; FIX #13 (Rev. 1.2 6/6/90) + addxl %d4,%d2 |add with extend upper 32 bits + nop |ERRATA ; FIX #13 (Rev. 1.2 6/6/90) + addxw %d6,%d1 |add in extend from add to d1 + swap %d6 |with d6 = 0; put 0 in upper word +| +| A6. Test d7 and branch. +| + tstw %d7 |if zero, store digit & to loop + beqs first_d |if non-zero, form byte & write +sec_d: + swap %d7 |bring first digit to word d7b + aslw #4,%d7 |first digit in upper 4 bits d7b + addw %d1,%d7 |add in ls digit to d7b + moveb %d7,(%a0)+ |store d7b byte in memory + swap %d7 |put LEN counter in word d7a + clrw %d7 |set d7a to signal no digits done + dbf %d0,loop |do loop some more! + bras end_bstr |finished, so exit +first_d: + swap %d7 |put digit word in d7b + movew %d1,%d7 |put new digit in d7b + swap %d7 |put LEN counter in word d7a + addqw #1,%d7 |set d7a to signal first digit done + dbf %d0,loop |do loop some more! + swap %d7 |put last digit in string + lslw #4,%d7 |move it to upper 4 bits + moveb %d7,(%a0)+ |store it in memory string +| +| Clean up and return with result in fp0. +| +end_bstr: + moveml (%a7)+,%d0-%d7 + rts + |end |