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(). ... --- include/rdma/ib_hdrs.h | 307 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 307 insertions(+) create mode 100644 include/rdma/ib_hdrs.h (limited to 'include/rdma/ib_hdrs.h') diff --git a/include/rdma/ib_hdrs.h b/include/rdma/ib_hdrs.h new file mode 100644 index 000000000..8ae07c0ec --- /dev/null +++ b/include/rdma/ib_hdrs.h @@ -0,0 +1,307 @@ +/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ +/* + * Copyright(c) 2016 - 2018 Intel Corporation. + */ + +#ifndef IB_HDRS_H +#define IB_HDRS_H + +#include +#include +#include + +#define IB_SEQ_NAK (3 << 29) + +/* AETH NAK opcode values */ +#define IB_RNR_NAK 0x20 +#define IB_NAK_PSN_ERROR 0x60 +#define IB_NAK_INVALID_REQUEST 0x61 +#define IB_NAK_REMOTE_ACCESS_ERROR 0x62 +#define IB_NAK_REMOTE_OPERATIONAL_ERROR 0x63 +#define IB_NAK_INVALID_RD_REQUEST 0x64 + +#define IB_BTH_REQ_ACK BIT(31) +#define IB_BTH_SOLICITED BIT(23) +#define IB_BTH_MIG_REQ BIT(22) + +#define IB_GRH_VERSION 6 +#define IB_GRH_VERSION_MASK 0xF +#define IB_GRH_VERSION_SHIFT 28 +#define IB_GRH_TCLASS_MASK 0xFF +#define IB_GRH_TCLASS_SHIFT 20 +#define IB_GRH_FLOW_MASK 0xFFFFF +#define IB_GRH_FLOW_SHIFT 0 +#define IB_GRH_NEXT_HDR 0x1B +#define IB_FECN_SHIFT 31 +#define IB_FECN_MASK 1 +#define IB_FECN_SMASK BIT(IB_FECN_SHIFT) +#define IB_BECN_SHIFT 30 +#define IB_BECN_MASK 1 +#define IB_BECN_SMASK BIT(IB_BECN_SHIFT) + +#define IB_AETH_CREDIT_SHIFT 24 +#define IB_AETH_CREDIT_MASK 0x1F +#define IB_AETH_CREDIT_INVAL 0x1F +#define IB_AETH_NAK_SHIFT 29 +#define IB_MSN_MASK 0xFFFFFF + +struct ib_reth { + __be64 vaddr; /* potentially unaligned */ + __be32 rkey; + __be32 length; +} __packed; + +struct ib_atomic_eth { + __be64 vaddr; /* potentially unaligned */ + __be32 rkey; + __be64 swap_data; /* potentially unaligned */ + __be64 compare_data; /* potentially unaligned */ +} __packed; + +#include + +union ib_ehdrs { + struct { + __be32 deth[2]; + __be32 imm_data; + } ud; + struct { + struct ib_reth reth; + __be32 imm_data; + } rc; + struct { + __be32 aeth; + __be64 atomic_ack_eth; /* potentially unaligned */ + } __packed at; + __be32 imm_data; + __be32 aeth; + __be32 ieth; + struct ib_atomic_eth atomic_eth; + /* TID RDMA headers */ + union { + struct tid_rdma_read_req r_req; + struct tid_rdma_read_resp r_rsp; + struct tid_rdma_write_req w_req; + struct tid_rdma_write_resp w_rsp; + struct tid_rdma_write_data w_data; + struct tid_rdma_resync resync; + struct tid_rdma_ack ack; + } tid_rdma; +} __packed; + +struct ib_other_headers { + __be32 bth[3]; + union ib_ehdrs u; +} __packed; + +struct ib_header { + __be16 lrh[4]; + union { + struct { + struct ib_grh grh; + struct ib_other_headers oth; + } l; + struct ib_other_headers oth; + } u; +} __packed; + +/* accessors for unaligned __be64 items */ + +static inline u64 ib_u64_get(__be64 *p) +{ + return get_unaligned_be64(p); +} + +static inline void ib_u64_put(u64 val, __be64 *p) +{ + put_unaligned_be64(val, p); +} + +static inline u64 get_ib_reth_vaddr(struct ib_reth *reth) +{ + return ib_u64_get(&reth->vaddr); +} + +static inline void put_ib_reth_vaddr(u64 val, struct ib_reth *reth) +{ + ib_u64_put(val, &reth->vaddr); +} + +static inline u64 get_ib_ateth_vaddr(struct ib_atomic_eth *ateth) +{ + return ib_u64_get(&ateth->vaddr); +} + +static inline void put_ib_ateth_vaddr(u64 val, struct ib_atomic_eth *ateth) +{ + ib_u64_put(val, &ateth->vaddr); +} + +static inline u64 get_ib_ateth_swap(struct ib_atomic_eth *ateth) +{ + return ib_u64_get(&ateth->swap_data); +} + +static inline void put_ib_ateth_swap(u64 val, struct ib_atomic_eth *ateth) +{ + ib_u64_put(val, &ateth->swap_data); +} + +static inline u64 get_ib_ateth_compare(struct ib_atomic_eth *ateth) +{ + return ib_u64_get(&ateth->compare_data); +} + +static inline void put_ib_ateth_compare(u64 val, struct ib_atomic_eth *ateth) +{ + ib_u64_put(val, &ateth->compare_data); +} + +/* + * 9B/IB Packet Format + */ +#define IB_LNH_MASK 3 +#define IB_SC_MASK 0xf +#define IB_SC_SHIFT 12 +#define IB_SC5_MASK 0x10 +#define IB_SL_MASK 0xf +#define IB_SL_SHIFT 4 +#define IB_SL_SHIFT 4 +#define IB_LVER_MASK 0xf +#define IB_LVER_SHIFT 8 + +static inline u8 ib_get_lnh(struct ib_header *hdr) +{ + return (be16_to_cpu(hdr->lrh[0]) & IB_LNH_MASK); +} + +static inline u8 ib_get_sc(struct ib_header *hdr) +{ + return ((be16_to_cpu(hdr->lrh[0]) >> IB_SC_SHIFT) & IB_SC_MASK); +} + +static inline bool ib_is_sc5(u16 sc5) +{ + return !!(sc5 & IB_SC5_MASK); +} + +static inline u8 ib_get_sl(struct ib_header *hdr) +{ + return ((be16_to_cpu(hdr->lrh[0]) >> IB_SL_SHIFT) & IB_SL_MASK); +} + +static inline u16 ib_get_dlid(struct ib_header *hdr) +{ + return (be16_to_cpu(hdr->lrh[1])); +} + +static inline u16 ib_get_slid(struct ib_header *hdr) +{ + return (be16_to_cpu(hdr->lrh[3])); +} + +static inline u8 ib_get_lver(struct ib_header *hdr) +{ + return (u8)((be16_to_cpu(hdr->lrh[0]) >> IB_LVER_SHIFT) & + IB_LVER_MASK); +} + +static inline u32 ib_get_qkey(struct ib_other_headers *ohdr) +{ + return be32_to_cpu(ohdr->u.ud.deth[0]); +} + +static inline u32 ib_get_sqpn(struct ib_other_headers *ohdr) +{ + return ((be32_to_cpu(ohdr->u.ud.deth[1])) & IB_QPN_MASK); +} + +/* + * BTH + */ +#define IB_BTH_OPCODE_MASK 0xff +#define IB_BTH_OPCODE_SHIFT 24 +#define IB_BTH_PAD_MASK 3 +#define IB_BTH_PKEY_MASK 0xffff +#define IB_BTH_PAD_SHIFT 20 +#define IB_BTH_A_MASK 1 +#define IB_BTH_A_SHIFT 31 +#define IB_BTH_M_MASK 1 +#define IB_BTH_M_SHIFT 22 +#define IB_BTH_SE_MASK 1 +#define IB_BTH_SE_SHIFT 23 +#define IB_BTH_TVER_MASK 0xf +#define IB_BTH_TVER_SHIFT 16 +#define IB_BTH_OPCODE_CNP 0x81 + +static inline u8 ib_bth_get_pad(struct ib_other_headers *ohdr) +{ + return ((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_PAD_SHIFT) & + IB_BTH_PAD_MASK); +} + +static inline u16 ib_bth_get_pkey(struct ib_other_headers *ohdr) +{ + return (be32_to_cpu(ohdr->bth[0]) & IB_BTH_PKEY_MASK); +} + +static inline u8 ib_bth_get_opcode(struct ib_other_headers *ohdr) +{ + return ((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_OPCODE_SHIFT) & + IB_BTH_OPCODE_MASK); +} + +static inline u8 ib_bth_get_ackreq(struct ib_other_headers *ohdr) +{ + return (u8)((be32_to_cpu(ohdr->bth[2]) >> IB_BTH_A_SHIFT) & + IB_BTH_A_MASK); +} + +static inline u8 ib_bth_get_migreq(struct ib_other_headers *ohdr) +{ + return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_M_SHIFT) & + IB_BTH_M_MASK); +} + +static inline u8 ib_bth_get_se(struct ib_other_headers *ohdr) +{ + return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_SE_SHIFT) & + IB_BTH_SE_MASK); +} + +static inline u32 ib_bth_get_psn(struct ib_other_headers *ohdr) +{ + return (u32)(be32_to_cpu(ohdr->bth[2])); +} + +static inline u32 ib_bth_get_qpn(struct ib_other_headers *ohdr) +{ + return (u32)((be32_to_cpu(ohdr->bth[1])) & IB_QPN_MASK); +} + +static inline bool ib_bth_get_becn(struct ib_other_headers *ohdr) +{ + return (ohdr->bth[1]) & cpu_to_be32(IB_BECN_SMASK); +} + +static inline bool ib_bth_get_fecn(struct ib_other_headers *ohdr) +{ + return (ohdr->bth[1]) & cpu_to_be32(IB_FECN_SMASK); +} + +static inline u8 ib_bth_get_tver(struct ib_other_headers *ohdr) +{ + return (u8)((be32_to_cpu(ohdr->bth[0]) >> IB_BTH_TVER_SHIFT) & + IB_BTH_TVER_MASK); +} + +static inline bool ib_bth_is_solicited(struct ib_other_headers *ohdr) +{ + return ohdr->bth[0] & cpu_to_be32(IB_BTH_SOLICITED); +} + +static inline bool ib_bth_is_migration(struct ib_other_headers *ohdr) +{ + return ohdr->bth[0] & cpu_to_be32(IB_BTH_MIG_REQ); +} +#endif /* IB_HDRS_H */ -- cgit v1.2.3