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/mm/viking.S | 284 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 284 insertions(+) create mode 100644 arch/sparc/mm/viking.S (limited to 'arch/sparc/mm/viking.S') diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S new file mode 100644 index 000000000..48f062de7 --- /dev/null +++ b/arch/sparc/mm/viking.S @@ -0,0 +1,284 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * viking.S: High speed Viking cache/mmu operations + * + * Copyright (C) 1997 Eddie C. Dost (ecd@skynet.be) + * Copyright (C) 1997,1998,1999 Jakub Jelinek (jj@ultra.linux.cz) + * Copyright (C) 1999 Pavel Semerad (semerad@ss1000.ms.mff.cuni.cz) + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef CONFIG_SMP + .data + .align 4 +sun4dsmp_flush_tlb_spin: + .word 0 +#endif + + .text + .align 4 + + .globl viking_flush_cache_all, viking_flush_cache_mm + .globl viking_flush_cache_range, viking_flush_cache_page + .globl viking_flush_page, viking_mxcc_flush_page + .globl viking_flush_page_for_dma, viking_flush_page_to_ram + .globl viking_flush_sig_insns + .globl viking_flush_tlb_all, viking_flush_tlb_mm + .globl viking_flush_tlb_range, viking_flush_tlb_page + +viking_flush_page: + sethi %hi(PAGE_OFFSET), %g2 + sub %o0, %g2, %g3 + srl %g3, 12, %g1 ! ppage >> 12 + + clr %o1 ! set counter, 0 - 127 + sethi %hi(PAGE_OFFSET + PAGE_SIZE - 0x80000000), %o3 + sethi %hi(0x80000000), %o4 + sethi %hi(VIKING_PTAG_VALID), %o5 + sethi %hi(2*PAGE_SIZE), %o0 + sethi %hi(PAGE_SIZE), %g7 + clr %o2 ! block counter, 0 - 3 +5: + sll %o1, 5, %g4 + or %g4, %o4, %g4 ! 0x80000000 | (set << 5) + + sll %o2, 26, %g5 ! block << 26 +6: + or %g5, %g4, %g5 + ldda [%g5] ASI_M_DATAC_TAG, %g2 + cmp %g3, %g1 ! ptag == ppage? + bne 7f + inc %o2 + + andcc %g2, %o5, %g0 ! ptag VALID? + be 7f + add %g4, %o3, %g2 ! (PAGE_OFFSET + PAGE_SIZE) | (set << 5) + ld [%g2], %g3 + ld [%g2 + %g7], %g3 + add %g2, %o0, %g2 + ld [%g2], %g3 + ld [%g2 + %g7], %g3 + add %g2, %o0, %g2 + ld [%g2], %g3 + ld [%g2 + %g7], %g3 + add %g2, %o0, %g2 + ld [%g2], %g3 + b 8f + ld [%g2 + %g7], %g3 + +7: + cmp %o2, 3 + ble 6b + sll %o2, 26, %g5 ! block << 26 + +8: inc %o1 + cmp %o1, 0x7f + ble 5b + clr %o2 + +9: retl + nop + +viking_mxcc_flush_page: + sethi %hi(PAGE_OFFSET), %g2 + sub %o0, %g2, %g3 + sub %g3, -PAGE_SIZE, %g3 ! ppage + PAGE_SIZE + sethi %hi(MXCC_SRCSTREAM), %o3 ! assume %hi(MXCC_SRCSTREAM) == %hi(MXCC_DESTSTREAM) + mov 0x10, %g2 ! set cacheable bit + or %o3, %lo(MXCC_SRCSTREAM), %o2 + or %o3, %lo(MXCC_DESSTREAM), %o3 + sub %g3, MXCC_STREAM_SIZE, %g3 +6: + stda %g2, [%o2] ASI_M_MXCC + stda %g2, [%o3] ASI_M_MXCC + andncc %g3, PAGE_MASK, %g0 + bne 6b + sub %g3, MXCC_STREAM_SIZE, %g3 + +9: retl + nop + +viking_flush_cache_page: +viking_flush_cache_range: +#ifndef CONFIG_SMP + ld [%o0 + VMA_VM_MM], %o0 +#endif +viking_flush_cache_mm: +#ifndef CONFIG_SMP + ld [%o0 + AOFF_mm_context], %g1 + cmp %g1, -1 + bne viking_flush_cache_all + nop + b,a viking_flush_cache_out +#endif +viking_flush_cache_all: + WINDOW_FLUSH(%g4, %g5) +viking_flush_cache_out: + retl + nop + +viking_flush_tlb_all: + mov 0x400, %g1 + retl + sta %g0, [%g1] ASI_M_FLUSH_PROBE + +viking_flush_tlb_mm: + mov SRMMU_CTX_REG, %g1 + ld [%o0 + AOFF_mm_context], %o1 + lda [%g1] ASI_M_MMUREGS, %g5 +#ifndef CONFIG_SMP + cmp %o1, -1 + be 1f +#endif + mov 0x300, %g2 + sta %o1, [%g1] ASI_M_MMUREGS + sta %g0, [%g2] ASI_M_FLUSH_PROBE + retl + sta %g5, [%g1] ASI_M_MMUREGS +#ifndef CONFIG_SMP +1: retl + nop +#endif + +viking_flush_tlb_range: + ld [%o0 + VMA_VM_MM], %o0 + mov SRMMU_CTX_REG, %g1 + ld [%o0 + AOFF_mm_context], %o3 + lda [%g1] ASI_M_MMUREGS, %g5 +#ifndef CONFIG_SMP + cmp %o3, -1 + be 2f +#endif + sethi %hi(~((1 << PGDIR_SHIFT) - 1)), %o4 + sta %o3, [%g1] ASI_M_MMUREGS + and %o1, %o4, %o1 + add %o1, 0x200, %o1 + sta %g0, [%o1] ASI_M_FLUSH_PROBE +1: sub %o1, %o4, %o1 + cmp %o1, %o2 + blu,a 1b + sta %g0, [%o1] ASI_M_FLUSH_PROBE + retl + sta %g5, [%g1] ASI_M_MMUREGS +#ifndef CONFIG_SMP +2: retl + nop +#endif + +viking_flush_tlb_page: + ld [%o0 + VMA_VM_MM], %o0 + mov SRMMU_CTX_REG, %g1 + ld [%o0 + AOFF_mm_context], %o3 + lda [%g1] ASI_M_MMUREGS, %g5 +#ifndef CONFIG_SMP + cmp %o3, -1 + be 1f +#endif + and %o1, PAGE_MASK, %o1 + sta %o3, [%g1] ASI_M_MMUREGS + sta %g0, [%o1] ASI_M_FLUSH_PROBE + retl + sta %g5, [%g1] ASI_M_MMUREGS +#ifndef CONFIG_SMP +1: retl + nop +#endif + +viking_flush_page_to_ram: +viking_flush_page_for_dma: +viking_flush_sig_insns: + retl + nop + +#ifdef CONFIG_SMP + .globl sun4dsmp_flush_tlb_all, sun4dsmp_flush_tlb_mm + .globl sun4dsmp_flush_tlb_range, sun4dsmp_flush_tlb_page +sun4dsmp_flush_tlb_all: + sethi %hi(sun4dsmp_flush_tlb_spin), %g3 +1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5 + tst %g5 + bne 2f + mov 0x400, %g1 + sta %g0, [%g1] ASI_M_FLUSH_PROBE + retl + stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)] +2: tst %g5 + bne,a 2b + ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5 + b,a 1b + +sun4dsmp_flush_tlb_mm: + sethi %hi(sun4dsmp_flush_tlb_spin), %g3 +1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5 + tst %g5 + bne 2f + mov SRMMU_CTX_REG, %g1 + ld [%o0 + AOFF_mm_context], %o1 + lda [%g1] ASI_M_MMUREGS, %g5 + mov 0x300, %g2 + sta %o1, [%g1] ASI_M_MMUREGS + sta %g0, [%g2] ASI_M_FLUSH_PROBE + sta %g5, [%g1] ASI_M_MMUREGS + retl + stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)] +2: tst %g5 + bne,a 2b + ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5 + b,a 1b + +sun4dsmp_flush_tlb_range: + sethi %hi(sun4dsmp_flush_tlb_spin), %g3 +1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5 + tst %g5 + bne 3f + mov SRMMU_CTX_REG, %g1 + ld [%o0 + VMA_VM_MM], %o0 + ld [%o0 + AOFF_mm_context], %o3 + lda [%g1] ASI_M_MMUREGS, %g5 + sethi %hi(~((1 << PGDIR_SHIFT) - 1)), %o4 + sta %o3, [%g1] ASI_M_MMUREGS + and %o1, %o4, %o1 + add %o1, 0x200, %o1 + sta %g0, [%o1] ASI_M_FLUSH_PROBE +2: sub %o1, %o4, %o1 + cmp %o1, %o2 + blu,a 2b + sta %g0, [%o1] ASI_M_FLUSH_PROBE + sta %g5, [%g1] ASI_M_MMUREGS + retl + stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)] +3: tst %g5 + bne,a 3b + ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5 + b,a 1b + +sun4dsmp_flush_tlb_page: + sethi %hi(sun4dsmp_flush_tlb_spin), %g3 +1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5 + tst %g5 + bne 2f + mov SRMMU_CTX_REG, %g1 + ld [%o0 + VMA_VM_MM], %o0 + ld [%o0 + AOFF_mm_context], %o3 + lda [%g1] ASI_M_MMUREGS, %g5 + and %o1, PAGE_MASK, %o1 + sta %o3, [%g1] ASI_M_MMUREGS + sta %g0, [%o1] ASI_M_FLUSH_PROBE + sta %g5, [%g1] ASI_M_MMUREGS + retl + stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)] +2: tst %g5 + bne,a 2b + ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5 + b,a 1b + nop +#endif -- cgit v1.2.3