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/scsi/mesh.h | 139 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 139 insertions(+) create mode 100644 drivers/scsi/mesh.h (limited to 'drivers/scsi/mesh.h') diff --git a/drivers/scsi/mesh.h b/drivers/scsi/mesh.h new file mode 100644 index 000000000..f70181acc --- /dev/null +++ b/drivers/scsi/mesh.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * mesh.h: definitions for the driver for the MESH SCSI bus adaptor + * (Macintosh Enhanced SCSI Hardware) found on Power Macintosh computers. + * + * Copyright (C) 1996 Paul Mackerras. + */ +#ifndef _MESH_H +#define _MESH_H + +struct mesh_cmd_priv { + int this_residual; + int message; + int status; +}; + +static inline struct mesh_cmd_priv *mesh_priv(struct scsi_cmnd *cmd) +{ + return scsi_cmd_priv(cmd); +} + +/* + * Registers in the MESH controller. + */ + +struct mesh_regs { + unsigned char count_lo; + char pad0[15]; + unsigned char count_hi; + char pad1[15]; + unsigned char fifo; + char pad2[15]; + unsigned char sequence; + char pad3[15]; + unsigned char bus_status0; + char pad4[15]; + unsigned char bus_status1; + char pad5[15]; + unsigned char fifo_count; + char pad6[15]; + unsigned char exception; + char pad7[15]; + unsigned char error; + char pad8[15]; + unsigned char intr_mask; + char pad9[15]; + unsigned char interrupt; + char pad10[15]; + unsigned char source_id; + char pad11[15]; + unsigned char dest_id; + char pad12[15]; + unsigned char sync_params; + char pad13[15]; + unsigned char mesh_id; + char pad14[15]; + unsigned char sel_timeout; + char pad15[15]; +}; + +/* Bits in the sequence register. */ +#define SEQ_DMA_MODE 0x80 /* use DMA for data transfer */ +#define SEQ_TARGET 0x40 /* put the controller into target mode */ +#define SEQ_ATN 0x20 /* assert ATN signal */ +#define SEQ_ACTIVE_NEG 0x10 /* use active negation on REQ/ACK */ +#define SEQ_CMD 0x0f /* command bits: */ +#define SEQ_ARBITRATE 1 /* get the bus */ +#define SEQ_SELECT 2 /* select a target */ +#define SEQ_COMMAND 3 /* send a command */ +#define SEQ_STATUS 4 /* receive status */ +#define SEQ_DATAOUT 5 /* send data */ +#define SEQ_DATAIN 6 /* receive data */ +#define SEQ_MSGOUT 7 /* send a message */ +#define SEQ_MSGIN 8 /* receive a message */ +#define SEQ_BUSFREE 9 /* look for bus free */ +#define SEQ_ENBPARITY 0x0a /* enable parity checking */ +#define SEQ_DISPARITY 0x0b /* disable parity checking */ +#define SEQ_ENBRESEL 0x0c /* enable reselection */ +#define SEQ_DISRESEL 0x0d /* disable reselection */ +#define SEQ_RESETMESH 0x0e /* reset the controller */ +#define SEQ_FLUSHFIFO 0x0f /* clear out the FIFO */ + +/* Bits in the bus_status0 and bus_status1 registers: + these correspond directly to the SCSI bus control signals. */ +#define BS0_REQ 0x20 +#define BS0_ACK 0x10 +#define BS0_ATN 0x08 +#define BS0_MSG 0x04 +#define BS0_CD 0x02 +#define BS0_IO 0x01 +#define BS1_RST 0x80 +#define BS1_BSY 0x40 +#define BS1_SEL 0x20 + +/* Bus phases defined by the bits in bus_status0 */ +#define BS0_PHASE (BS0_MSG+BS0_CD+BS0_IO) +#define BP_DATAOUT 0 +#define BP_DATAIN BS0_IO +#define BP_COMMAND BS0_CD +#define BP_STATUS (BS0_CD+BS0_IO) +#define BP_MSGOUT (BS0_MSG+BS0_CD) +#define BP_MSGIN (BS0_MSG+BS0_CD+BS0_IO) + +/* Bits in the exception register. */ +#define EXC_SELWATN 0x20 /* (as target) we were selected with ATN */ +#define EXC_SELECTED 0x10 /* (as target) we were selected w/o ATN */ +#define EXC_RESELECTED 0x08 /* (as initiator) we were reselected */ +#define EXC_ARBLOST 0x04 /* we lost arbitration */ +#define EXC_PHASEMM 0x02 /* SCSI phase mismatch */ +#define EXC_SELTO 0x01 /* selection timeout */ + +/* Bits in the error register */ +#define ERR_UNEXPDISC 0x40 /* target unexpectedly disconnected */ +#define ERR_SCSIRESET 0x20 /* SCSI bus got reset on us */ +#define ERR_SEQERR 0x10 /* we did something the chip didn't like */ +#define ERR_PARITY 0x01 /* parity error was detected */ + +/* Bits in the interrupt and intr_mask registers */ +#define INT_ERROR 0x04 /* error interrupt */ +#define INT_EXCEPTION 0x02 /* exception interrupt */ +#define INT_CMDDONE 0x01 /* command done interrupt */ + +/* Fields in the sync_params register */ +#define SYNC_OFF(x) ((x) >> 4) /* offset field */ +#define SYNC_PER(x) ((x) & 0xf) /* period field */ +#define SYNC_PARAMS(o, p) (((o) << 4) | (p)) +#define ASYNC_PARAMS 2 /* sync_params value for async xfers */ + +/* + * Assuming a clock frequency of 50MHz: + * + * The transfer period with SYNC_PER(sync_params) == x + * is (x + 2) * 40ns, except that x == 0 gives 100ns. + * + * The units of the sel_timeout register are 10ms. + */ + + +#endif /* _MESH_H */ -- cgit v1.2.3