From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: 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(). ... --- arch/sparc/lib/memset.S | 197 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 197 insertions(+) create mode 100644 arch/sparc/lib/memset.S (limited to 'arch/sparc/lib/memset.S') diff --git a/arch/sparc/lib/memset.S b/arch/sparc/lib/memset.S new file mode 100644 index 000000000..eaff68213 --- /dev/null +++ b/arch/sparc/lib/memset.S @@ -0,0 +1,197 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* linux/arch/sparc/lib/memset.S: Sparc optimized memset, bzero and clear_user code + * Copyright (C) 1991,1996 Free Software Foundation + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) + * + * Calls to memset returns initial %o0. Calls to bzero returns 0, if ok, and + * number of bytes not yet set if exception occurs and we were called as + * clear_user. + */ + +#include +#include + +/* Work around cpp -rob */ +#define ALLOC #alloc +#define EXECINSTR #execinstr +#define EX(x,y,a,b) \ +98: x,y; \ + .section .fixup,ALLOC,EXECINSTR; \ + .align 4; \ +99: retl; \ + a, b, %o0; \ + .section __ex_table,ALLOC; \ + .align 4; \ + .word 98b, 99b; \ + .text; \ + .align 4 + +#define STORE(source, base, offset, n) \ +98: std source, [base + offset + n]; \ + .section .fixup,ALLOC,EXECINSTR; \ + .align 4; \ +99: ba 30f; \ + sub %o3, n - offset, %o3; \ + .section __ex_table,ALLOC; \ + .align 4; \ + .word 98b, 99b; \ + .text; \ + .align 4; + +#define STORE_LAST(source, base, offset, n) \ + EX(std source, [base - offset - n], \ + add %o1, offset + n); + +/* Please don't change these macros, unless you change the logic + * in the .fixup section below as well. + * Store 64 bytes at (BASE + OFFSET) using value SOURCE. */ +#define ZERO_BIG_BLOCK(base, offset, source) \ + STORE(source, base, offset, 0x00); \ + STORE(source, base, offset, 0x08); \ + STORE(source, base, offset, 0x10); \ + STORE(source, base, offset, 0x18); \ + STORE(source, base, offset, 0x20); \ + STORE(source, base, offset, 0x28); \ + STORE(source, base, offset, 0x30); \ + STORE(source, base, offset, 0x38); + +#define ZERO_LAST_BLOCKS(base, offset, source) \ + STORE_LAST(source, base, offset, 0x38); \ + STORE_LAST(source, base, offset, 0x30); \ + STORE_LAST(source, base, offset, 0x28); \ + STORE_LAST(source, base, offset, 0x20); \ + STORE_LAST(source, base, offset, 0x18); \ + STORE_LAST(source, base, offset, 0x10); \ + STORE_LAST(source, base, offset, 0x08); \ + STORE_LAST(source, base, offset, 0x00); + + .text + .align 4 + + .globl __bzero_begin +__bzero_begin: + + .globl __bzero + .type __bzero,#function + .globl memset + EXPORT_SYMBOL(__bzero) + EXPORT_SYMBOL(memset) +memset: + mov %o0, %g1 + mov 1, %g4 + and %o1, 0xff, %g3 + sll %g3, 8, %g2 + or %g3, %g2, %g3 + sll %g3, 16, %g2 + or %g3, %g2, %g3 + b 1f + mov %o2, %o1 +3: + cmp %o2, 3 + be 2f + EX(stb %g3, [%o0], sub %o1, 0) + + cmp %o2, 2 + be 2f + EX(stb %g3, [%o0 + 0x01], sub %o1, 1) + + EX(stb %g3, [%o0 + 0x02], sub %o1, 2) +2: + sub %o2, 4, %o2 + add %o1, %o2, %o1 + b 4f + sub %o0, %o2, %o0 + +__bzero: + clr %g4 + mov %g0, %g3 +1: + cmp %o1, 7 + bleu 7f + andcc %o0, 3, %o2 + + bne 3b +4: + andcc %o0, 4, %g0 + + be 2f + mov %g3, %g2 + + EX(st %g3, [%o0], sub %o1, 0) + sub %o1, 4, %o1 + add %o0, 4, %o0 +2: + andcc %o1, 0xffffff80, %o3 ! Now everything is 8 aligned and o1 is len to run + be 9f + andcc %o1, 0x78, %o2 +10: + ZERO_BIG_BLOCK(%o0, 0x00, %g2) + subcc %o3, 128, %o3 + ZERO_BIG_BLOCK(%o0, 0x40, %g2) + bne 10b + add %o0, 128, %o0 + + orcc %o2, %g0, %g0 +9: + be 13f + andcc %o1, 7, %o1 + + srl %o2, 1, %o3 + set 13f, %o4 + sub %o4, %o3, %o4 + jmp %o4 + add %o0, %o2, %o0 + + ZERO_LAST_BLOCKS(%o0, 0x48, %g2) + ZERO_LAST_BLOCKS(%o0, 0x08, %g2) +13: + be 8f + andcc %o1, 4, %g0 + + be 1f + andcc %o1, 2, %g0 + + EX(st %g3, [%o0], and %o1, 7) + add %o0, 4, %o0 +1: + be 1f + andcc %o1, 1, %g0 + + EX(sth %g3, [%o0], and %o1, 3) + add %o0, 2, %o0 +1: + bne,a 8f + EX(stb %g3, [%o0], and %o1, 1) +8: + b 0f + nop +7: + be 13b + orcc %o1, 0, %g0 + + be 0f +8: + add %o0, 1, %o0 + subcc %o1, 1, %o1 + bne 8b + EX(stb %g3, [%o0 - 1], add %o1, 1) +0: + andcc %g4, 1, %g0 + be 5f + nop + retl + mov %g1, %o0 +5: + retl + clr %o0 + + .section .fixup,#alloc,#execinstr + .align 4 +30: + and %o1, 0x7f, %o1 + retl + add %o3, %o1, %o0 + + .globl __bzero_end +__bzero_end: -- cgit v1.2.3