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/ia64/include/asm/unwind.h | 234 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 234 insertions(+) create mode 100644 arch/ia64/include/asm/unwind.h (limited to 'arch/ia64/include/asm/unwind.h') diff --git a/arch/ia64/include/asm/unwind.h b/arch/ia64/include/asm/unwind.h new file mode 100644 index 000000000..c5bd4b3e3 --- /dev/null +++ b/arch/ia64/include/asm/unwind.h @@ -0,0 +1,234 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_IA64_UNWIND_H +#define _ASM_IA64_UNWIND_H + +/* + * Copyright (C) 1999-2000, 2003 Hewlett-Packard Co + * David Mosberger-Tang + * + * A simple API for unwinding kernel stacks. This is used for + * debugging and error reporting purposes. The kernel doesn't need + * full-blown stack unwinding with all the bells and whitles, so there + * is not much point in implementing the full IA-64 unwind API (though + * it would of course be possible to implement the kernel API on top + * of it). + */ + +struct task_struct; /* forward declaration */ +struct switch_stack; /* forward declaration */ + +enum unw_application_register { + UNW_AR_BSP, + UNW_AR_BSPSTORE, + UNW_AR_PFS, + UNW_AR_RNAT, + UNW_AR_UNAT, + UNW_AR_LC, + UNW_AR_EC, + UNW_AR_FPSR, + UNW_AR_RSC, + UNW_AR_CCV, + UNW_AR_CSD, + UNW_AR_SSD +}; + +/* + * The following declarations are private to the unwind + * implementation: + */ + +struct unw_stack { + unsigned long limit; + unsigned long top; +}; + +#define UNW_FLAG_INTERRUPT_FRAME (1UL << 0) + +/* + * No user of this module should every access this structure directly + * as it is subject to change. It is declared here solely so we can + * use automatic variables. + */ +struct unw_frame_info { + struct unw_stack regstk; + struct unw_stack memstk; + unsigned int flags; + short hint; + short prev_script; + + /* current frame info: */ + unsigned long bsp; /* backing store pointer value */ + unsigned long sp; /* stack pointer value */ + unsigned long psp; /* previous sp value */ + unsigned long ip; /* instruction pointer value */ + unsigned long pr; /* current predicate values */ + unsigned long *cfm_loc; /* cfm save location (or NULL) */ + unsigned long pt; /* struct pt_regs location */ + + struct task_struct *task; + struct switch_stack *sw; + + /* preserved state: */ + unsigned long *bsp_loc; /* previous bsp save location */ + unsigned long *bspstore_loc; + unsigned long *pfs_loc; + unsigned long *rnat_loc; + unsigned long *rp_loc; + unsigned long *pri_unat_loc; + unsigned long *unat_loc; + unsigned long *pr_loc; + unsigned long *lc_loc; + unsigned long *fpsr_loc; + struct unw_ireg { + unsigned long *loc; + struct unw_ireg_nat { + unsigned long type : 3; /* enum unw_nat_type */ + signed long off : 61; /* NaT word is at loc+nat.off */ + } nat; + } r4, r5, r6, r7; + unsigned long *b1_loc, *b2_loc, *b3_loc, *b4_loc, *b5_loc; + struct ia64_fpreg *f2_loc, *f3_loc, *f4_loc, *f5_loc, *fr_loc[16]; +}; + +/* + * The official API follows below: + */ + +struct unw_table_entry { + u64 start_offset; + u64 end_offset; + u64 info_offset; +}; + +/* + * Initialize unwind support. + */ +extern void unw_init (void); + +extern void *unw_add_unwind_table (const char *name, unsigned long segment_base, unsigned long gp, + const void *table_start, const void *table_end); + +extern void unw_remove_unwind_table (void *handle); + +/* + * Prepare to unwind blocked task t. + */ +extern void unw_init_from_blocked_task (struct unw_frame_info *info, struct task_struct *t); + +extern void unw_init_frame_info (struct unw_frame_info *info, struct task_struct *t, + struct switch_stack *sw); + +/* + * Prepare to unwind the currently running thread. + */ +extern void unw_init_running (void (*callback)(struct unw_frame_info *info, void *arg), void *arg); + +/* + * Unwind to previous to frame. Returns 0 if successful, negative + * number in case of an error. + */ +extern int unw_unwind (struct unw_frame_info *info); + +/* + * Unwind until the return pointer is in user-land (or until an error + * occurs). Returns 0 if successful, negative number in case of + * error. + */ +extern int unw_unwind_to_user (struct unw_frame_info *info); + +#define unw_is_intr_frame(info) (((info)->flags & UNW_FLAG_INTERRUPT_FRAME) != 0) + +static inline int +unw_get_ip (struct unw_frame_info *info, unsigned long *valp) +{ + *valp = (info)->ip; + return 0; +} + +static inline int +unw_get_sp (struct unw_frame_info *info, unsigned long *valp) +{ + *valp = (info)->sp; + return 0; +} + +static inline int +unw_get_psp (struct unw_frame_info *info, unsigned long *valp) +{ + *valp = (info)->psp; + return 0; +} + +static inline int +unw_get_bsp (struct unw_frame_info *info, unsigned long *valp) +{ + *valp = (info)->bsp; + return 0; +} + +static inline int +unw_get_cfm (struct unw_frame_info *info, unsigned long *valp) +{ + *valp = *(info)->cfm_loc; + return 0; +} + +static inline int +unw_set_cfm (struct unw_frame_info *info, unsigned long val) +{ + *(info)->cfm_loc = val; + return 0; +} + +static inline int +unw_get_rp (struct unw_frame_info *info, unsigned long *val) +{ + if (!info->rp_loc) + return -1; + *val = *info->rp_loc; + return 0; +} + +extern int unw_access_gr (struct unw_frame_info *, int, unsigned long *, char *, int); +extern int unw_access_br (struct unw_frame_info *, int, unsigned long *, int); +extern int unw_access_fr (struct unw_frame_info *, int, struct ia64_fpreg *, int); +extern int unw_access_ar (struct unw_frame_info *, int, unsigned long *, int); +extern int unw_access_pr (struct unw_frame_info *, unsigned long *, int); + +static inline int +unw_set_gr (struct unw_frame_info *i, int n, unsigned long v, char nat) +{ + return unw_access_gr(i, n, &v, &nat, 1); +} + +static inline int +unw_set_br (struct unw_frame_info *i, int n, unsigned long v) +{ + return unw_access_br(i, n, &v, 1); +} + +static inline int +unw_set_fr (struct unw_frame_info *i, int n, struct ia64_fpreg v) +{ + return unw_access_fr(i, n, &v, 1); +} + +static inline int +unw_set_ar (struct unw_frame_info *i, int n, unsigned long v) +{ + return unw_access_ar(i, n, &v, 1); +} + +static inline int +unw_set_pr (struct unw_frame_info *i, unsigned long v) +{ + return unw_access_pr(i, &v, 1); +} + +#define unw_get_gr(i,n,v,nat) unw_access_gr(i,n,v,nat,0) +#define unw_get_br(i,n,v) unw_access_br(i,n,v,0) +#define unw_get_fr(i,n,v) unw_access_fr(i,n,v,0) +#define unw_get_ar(i,n,v) unw_access_ar(i,n,v,0) +#define unw_get_pr(i,v) unw_access_pr(i,v,0) + +#endif /* _ASM_UNWIND_H */ -- cgit v1.2.3