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(). ... --- drivers/iommu/intel/cap_audit.h | 131 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100644 drivers/iommu/intel/cap_audit.h (limited to 'drivers/iommu/intel/cap_audit.h') diff --git a/drivers/iommu/intel/cap_audit.h b/drivers/iommu/intel/cap_audit.h new file mode 100644 index 000000000..d07b75938 --- /dev/null +++ b/drivers/iommu/intel/cap_audit.h @@ -0,0 +1,131 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * cap_audit.h - audit iommu capabilities header + * + * Copyright (C) 2021 Intel Corporation + * + * Author: Kyung Min Park + */ + +/* + * Capability Register Mask + */ +#define CAP_FL5LP_MASK BIT_ULL(60) +#define CAP_PI_MASK BIT_ULL(59) +#define CAP_FL1GP_MASK BIT_ULL(56) +#define CAP_RD_MASK BIT_ULL(55) +#define CAP_WD_MASK BIT_ULL(54) +#define CAP_MAMV_MASK GENMASK_ULL(53, 48) +#define CAP_NFR_MASK GENMASK_ULL(47, 40) +#define CAP_PSI_MASK BIT_ULL(39) +#define CAP_SLLPS_MASK GENMASK_ULL(37, 34) +#define CAP_FRO_MASK GENMASK_ULL(33, 24) +#define CAP_ZLR_MASK BIT_ULL(22) +#define CAP_MGAW_MASK GENMASK_ULL(21, 16) +#define CAP_SAGAW_MASK GENMASK_ULL(12, 8) +#define CAP_CM_MASK BIT_ULL(7) +#define CAP_PHMR_MASK BIT_ULL(6) +#define CAP_PLMR_MASK BIT_ULL(5) +#define CAP_RWBF_MASK BIT_ULL(4) +#define CAP_AFL_MASK BIT_ULL(3) +#define CAP_NDOMS_MASK GENMASK_ULL(2, 0) + +/* + * Extended Capability Register Mask + */ +#define ECAP_RPS_MASK BIT_ULL(49) +#define ECAP_SMPWC_MASK BIT_ULL(48) +#define ECAP_FLTS_MASK BIT_ULL(47) +#define ECAP_SLTS_MASK BIT_ULL(46) +#define ECAP_SLADS_MASK BIT_ULL(45) +#define ECAP_VCS_MASK BIT_ULL(44) +#define ECAP_SMTS_MASK BIT_ULL(43) +#define ECAP_PDS_MASK BIT_ULL(42) +#define ECAP_DIT_MASK BIT_ULL(41) +#define ECAP_PASID_MASK BIT_ULL(40) +#define ECAP_PSS_MASK GENMASK_ULL(39, 35) +#define ECAP_EAFS_MASK BIT_ULL(34) +#define ECAP_NWFS_MASK BIT_ULL(33) +#define ECAP_SRS_MASK BIT_ULL(31) +#define ECAP_ERS_MASK BIT_ULL(30) +#define ECAP_PRS_MASK BIT_ULL(29) +#define ECAP_NEST_MASK BIT_ULL(26) +#define ECAP_MTS_MASK BIT_ULL(25) +#define ECAP_MHMV_MASK GENMASK_ULL(23, 20) +#define ECAP_IRO_MASK GENMASK_ULL(17, 8) +#define ECAP_SC_MASK BIT_ULL(7) +#define ECAP_PT_MASK BIT_ULL(6) +#define ECAP_EIM_MASK BIT_ULL(4) +#define ECAP_DT_MASK BIT_ULL(2) +#define ECAP_QI_MASK BIT_ULL(1) +#define ECAP_C_MASK BIT_ULL(0) + +/* + * u64 intel_iommu_cap_sanity, intel_iommu_ecap_sanity will be adjusted as each + * IOMMU gets audited. + */ +#define DO_CHECK_FEATURE_MISMATCH(a, b, cap, feature, MASK) \ +do { \ + if (cap##_##feature(a) != cap##_##feature(b)) { \ + intel_iommu_##cap##_sanity &= ~(MASK); \ + pr_info("IOMMU feature %s inconsistent", #feature); \ + } \ +} while (0) + +#define CHECK_FEATURE_MISMATCH(a, b, cap, feature, MASK) \ + DO_CHECK_FEATURE_MISMATCH((a)->cap, (b)->cap, cap, feature, MASK) + +#define CHECK_FEATURE_MISMATCH_HOTPLUG(b, cap, feature, MASK) \ +do { \ + if (cap##_##feature(intel_iommu_##cap##_sanity)) \ + DO_CHECK_FEATURE_MISMATCH(intel_iommu_##cap##_sanity, \ + (b)->cap, cap, feature, MASK); \ +} while (0) + +#define MINIMAL_FEATURE_IOMMU(iommu, cap, MASK) \ +do { \ + u64 min_feature = intel_iommu_##cap##_sanity & (MASK); \ + min_feature = min_t(u64, min_feature, (iommu)->cap & (MASK)); \ + intel_iommu_##cap##_sanity = (intel_iommu_##cap##_sanity & ~(MASK)) | \ + min_feature; \ +} while (0) + +#define MINIMAL_FEATURE_HOTPLUG(iommu, cap, feature, MASK, mismatch) \ +do { \ + if ((intel_iommu_##cap##_sanity & (MASK)) > \ + (cap##_##feature((iommu)->cap))) \ + mismatch = true; \ + else \ + (iommu)->cap = ((iommu)->cap & ~(MASK)) | \ + (intel_iommu_##cap##_sanity & (MASK)); \ +} while (0) + +enum cap_audit_type { + CAP_AUDIT_STATIC_DMAR, + CAP_AUDIT_STATIC_IRQR, + CAP_AUDIT_HOTPLUG_DMAR, + CAP_AUDIT_HOTPLUG_IRQR, +}; + +bool intel_cap_smts_sanity(void); +bool intel_cap_pasid_sanity(void); +bool intel_cap_nest_sanity(void); +bool intel_cap_flts_sanity(void); +bool intel_cap_slts_sanity(void); + +static inline bool scalable_mode_support(void) +{ + return (intel_iommu_sm && intel_cap_smts_sanity()); +} + +static inline bool pasid_mode_support(void) +{ + return scalable_mode_support() && intel_cap_pasid_sanity(); +} + +static inline bool nested_mode_support(void) +{ + return scalable_mode_support() && intel_cap_nest_sanity(); +} + +int intel_cap_audit(enum cap_audit_type type, struct intel_iommu *iommu); -- cgit v1.2.3