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/s390/cio/chsc.h | 223 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 223 insertions(+) create mode 100644 drivers/s390/cio/chsc.h (limited to 'drivers/s390/cio/chsc.h') diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h new file mode 100644 index 000000000..32fa7faa5 --- /dev/null +++ b/drivers/s390/cio/chsc.h @@ -0,0 +1,223 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef S390_CHSC_H +#define S390_CHSC_H + +#include +#include +#include +#include +#include +#include +#include + +#define CHSC_SDA_OC_MSS 0x2 + +#define NR_MEASUREMENT_CHARS 5 +struct cmg_chars { + u32 values[NR_MEASUREMENT_CHARS]; +}; + +#define NR_MEASUREMENT_ENTRIES 8 +struct cmg_entry { + u32 values[NR_MEASUREMENT_ENTRIES]; +}; + +struct channel_path_desc_fmt1 { + u8 flags; + u8 lsn; + u8 desc; + u8 chpid; + u32:16; + u8 esc; + u8 chpp; + u32 unused[2]; + u16 chid; + u32:16; + u16 mdc; + u16:13; + u8 r:1; + u8 s:1; + u8 f:1; + u32 zeros[2]; +}; + +struct channel_path_desc_fmt3 { + struct channel_path_desc_fmt1 fmt1_desc; + u8 util_str[64]; +}; + +struct channel_path; + +struct css_chsc_char { + u64 res; + u64 : 20; + u32 secm : 1; /* bit 84 */ + u32 : 1; + u32 scmc : 1; /* bit 86 */ + u32 : 20; + u32 scssc : 1; /* bit 107 */ + u32 scsscf : 1; /* bit 108 */ + u32:7; + u32 pnso:1; /* bit 116 */ + u32:11; +} __packed; + +extern struct css_chsc_char css_chsc_characteristics; + +struct chsc_ssd_info { + u8 path_mask; + u8 fla_valid_mask; + struct chp_id chpid[8]; + u16 fla[8]; +}; + +struct chsc_ssqd_area { + struct chsc_header request; + u16:10; + u8 ssid:2; + u8 fmt:4; + u16 first_sch; + u16:16; + u16 last_sch; + u32:32; + struct chsc_header response; + u32:32; + struct qdio_ssqd_desc qdio_ssqd; +} __packed __aligned(PAGE_SIZE); + +struct chsc_scssc_area { + struct chsc_header request; + u16 operation_code; + u16:16; + u32:32; + u32:32; + u64 summary_indicator_addr; + u64 subchannel_indicator_addr; + u32 ks:4; + u32 kc:4; + u32:21; + u32 isc:3; + u32 word_with_d_bit; + u32:32; + struct subchannel_id schid; + u32 reserved[1004]; + struct chsc_header response; + u32:32; +} __packed __aligned(PAGE_SIZE); + +struct chsc_scpd { + struct chsc_header request; + u32:2; + u32 m:1; + u32 c:1; + u32 fmt:4; + u32 cssid:8; + u32:4; + u32 rfmt:4; + u32 first_chpid:8; + u32:24; + u32 last_chpid:8; + u32 zeroes1; + struct chsc_header response; + u32:32; + u8 data[0]; +} __packed __aligned(PAGE_SIZE); + +struct chsc_sda_area { + struct chsc_header request; + u8 :4; + u8 format:4; + u8 :8; + u16 operation_code; + u32 :32; + u32 :32; + u32 operation_data_area[252]; + struct chsc_header response; + u32 :4; + u32 format2:4; + u32 :24; +} __packed __aligned(PAGE_SIZE); + +extern int chsc_get_ssd_info(struct subchannel_id schid, + struct chsc_ssd_info *ssd); +extern int chsc_determine_css_characteristics(void); +extern int chsc_init(void); +extern void chsc_init_cleanup(void); + +int __chsc_enable_facility(struct chsc_sda_area *sda_area, int operation_code); +extern int chsc_enable_facility(int); +struct channel_subsystem; +extern int chsc_secm(struct channel_subsystem *, int); +int __chsc_do_secm(struct channel_subsystem *css, int enable); + +int chsc_chp_vary(struct chp_id chpid, int on); +int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt, + int c, int m, void *page); +int chsc_determine_fmt0_channel_path_desc(struct chp_id chpid, + struct channel_path_desc_fmt0 *desc); +int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid, + struct channel_path_desc_fmt1 *desc); +int chsc_determine_fmt3_channel_path_desc(struct chp_id chpid, + struct channel_path_desc_fmt3 *desc); +void chsc_chp_online(struct chp_id chpid); +void chsc_chp_offline(struct chp_id chpid); +int chsc_get_channel_measurement_chars(struct channel_path *chp); +int chsc_ssqd(struct subchannel_id schid, struct chsc_ssqd_area *ssqd); +int chsc_sadc(struct subchannel_id schid, struct chsc_scssc_area *scssc, + u64 summary_indicator_addr, u64 subchannel_indicator_addr, + u8 isc); +int chsc_sgib(u32 origin); +int chsc_error_from_response(int response); + +int chsc_siosl(struct subchannel_id schid); + +/* Functions and definitions to query storage-class memory. */ +struct sale { + u64 sa; + u32 p:4; + u32 op_state:4; + u32 data_state:4; + u32 rank:4; + u32 r:1; + u32:7; + u32 rid:8; + u32:32; +} __packed; + +struct chsc_scm_info { + struct chsc_header request; + u32:32; + u64 reqtok; + u32 reserved1[4]; + struct chsc_header response; + u64:56; + u8 rq; + u32 mbc; + u64 msa; + u16 is; + u16 mmc; + u32 mci; + u64 nr_scm_ini; + u64 nr_scm_unini; + u32 reserved2[10]; + u64 restok; + struct sale scmal[248]; +} __packed __aligned(PAGE_SIZE); + +int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token); + +int chsc_pnso(struct subchannel_id schid, struct chsc_pnso_area *pnso_area, + u8 oc, struct chsc_pnso_resume_token resume_token, int cnc); + +int __init chsc_get_cssid_iid(int idx, u8 *cssid, u8 *iid); + +#ifdef CONFIG_SCM_BUS +int scm_update_information(void); +int scm_process_availability_information(void); +#else /* CONFIG_SCM_BUS */ +static inline int scm_update_information(void) { return 0; } +static inline int scm_process_availability_information(void) { return 0; } +#endif /* CONFIG_SCM_BUS */ + + +#endif -- cgit v1.2.3