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/mtd/devices/docg3.h | 343 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 343 insertions(+) create mode 100644 drivers/mtd/devices/docg3.h (limited to 'drivers/mtd/devices/docg3.h') diff --git a/drivers/mtd/devices/docg3.h b/drivers/mtd/devices/docg3.h new file mode 100644 index 000000000..2c0c5114e --- /dev/null +++ b/drivers/mtd/devices/docg3.h @@ -0,0 +1,343 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Handles the M-Systems DiskOnChip G3 chip + * + * Copyright (C) 2011 Robert Jarzmik + */ + +#ifndef _MTD_DOCG3_H +#define _MTD_DOCG3_H + +#include + +/* + * Flash memory areas : + * - 0x0000 .. 0x07ff : IPL + * - 0x0800 .. 0x0fff : Data area + * - 0x1000 .. 0x17ff : Registers + * - 0x1800 .. 0x1fff : Unknown + */ +#define DOC_IOSPACE_IPL 0x0000 +#define DOC_IOSPACE_DATA 0x0800 +#define DOC_IOSPACE_SIZE 0x2000 + +/* + * DOC G3 layout and adressing scheme + * A page address for the block "b", plane "P" and page "p": + * address = [bbbb bPpp pppp] + */ + +#define DOC_ADDR_PAGE_MASK 0x3f +#define DOC_ADDR_BLOCK_SHIFT 6 +#define DOC_LAYOUT_NBPLANES 2 +#define DOC_LAYOUT_PAGES_PER_BLOCK 64 +#define DOC_LAYOUT_PAGE_SIZE 512 +#define DOC_LAYOUT_OOB_SIZE 16 +#define DOC_LAYOUT_WEAR_SIZE 8 +#define DOC_LAYOUT_PAGE_OOB_SIZE \ + (DOC_LAYOUT_PAGE_SIZE + DOC_LAYOUT_OOB_SIZE) +#define DOC_LAYOUT_WEAR_OFFSET (DOC_LAYOUT_PAGE_OOB_SIZE * 2) +#define DOC_LAYOUT_BLOCK_SIZE \ + (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_PAGE_SIZE) + +/* + * ECC related constants + */ +#define DOC_ECC_BCH_M 14 +#define DOC_ECC_BCH_T 4 +#define DOC_ECC_BCH_PRIMPOLY 0x4443 +#define DOC_ECC_BCH_SIZE 7 +#define DOC_ECC_BCH_COVERED_BYTES \ + (DOC_LAYOUT_PAGE_SIZE + DOC_LAYOUT_OOB_PAGEINFO_SZ + \ + DOC_LAYOUT_OOB_HAMMING_SZ) +#define DOC_ECC_BCH_TOTAL_BYTES \ + (DOC_ECC_BCH_COVERED_BYTES + DOC_LAYOUT_OOB_BCH_SZ) + +/* + * Blocks distribution + */ +#define DOC_LAYOUT_BLOCK_BBT 0 +#define DOC_LAYOUT_BLOCK_OTP 0 +#define DOC_LAYOUT_BLOCK_FIRST_DATA 6 + +#define DOC_LAYOUT_PAGE_BBT 4 + +/* + * Extra page OOB (16 bytes wide) layout + */ +#define DOC_LAYOUT_OOB_PAGEINFO_OFS 0 +#define DOC_LAYOUT_OOB_HAMMING_OFS 7 +#define DOC_LAYOUT_OOB_BCH_OFS 8 +#define DOC_LAYOUT_OOB_UNUSED_OFS 15 +#define DOC_LAYOUT_OOB_PAGEINFO_SZ 7 +#define DOC_LAYOUT_OOB_HAMMING_SZ 1 +#define DOC_LAYOUT_OOB_BCH_SZ 7 +#define DOC_LAYOUT_OOB_UNUSED_SZ 1 + + +#define DOC_CHIPID_G3 0x200 +#define DOC_ERASE_MARK 0xaa +#define DOC_MAX_NBFLOORS 4 +/* + * Flash registers + */ +#define DOC_CHIPID 0x1000 +#define DOC_TEST 0x1004 +#define DOC_BUSLOCK 0x1006 +#define DOC_ENDIANCONTROL 0x1008 +#define DOC_DEVICESELECT 0x100a +#define DOC_ASICMODE 0x100c +#define DOC_CONFIGURATION 0x100e +#define DOC_INTERRUPTCONTROL 0x1010 +#define DOC_READADDRESS 0x101a +#define DOC_DATAEND 0x101e +#define DOC_INTERRUPTSTATUS 0x1020 + +#define DOC_FLASHSEQUENCE 0x1032 +#define DOC_FLASHCOMMAND 0x1034 +#define DOC_FLASHADDRESS 0x1036 +#define DOC_FLASHCONTROL 0x1038 +#define DOC_NOP 0x103e + +#define DOC_ECCCONF0 0x1040 +#define DOC_ECCCONF1 0x1042 +#define DOC_ECCPRESET 0x1044 +#define DOC_HAMMINGPARITY 0x1046 +#define DOC_BCH_HW_ECC(idx) (0x1048 + idx) + +#define DOC_PROTECTION 0x1056 +#define DOC_DPS0_KEY 0x105c +#define DOC_DPS1_KEY 0x105e +#define DOC_DPS0_ADDRLOW 0x1060 +#define DOC_DPS0_ADDRHIGH 0x1062 +#define DOC_DPS1_ADDRLOW 0x1064 +#define DOC_DPS1_ADDRHIGH 0x1066 +#define DOC_DPS0_STATUS 0x106c +#define DOC_DPS1_STATUS 0x106e + +#define DOC_ASICMODECONFIRM 0x1072 +#define DOC_CHIPID_INV 0x1074 +#define DOC_POWERMODE 0x107c + +/* + * Flash sequences + * A sequence is preset before one or more commands are input to the chip. + */ +#define DOC_SEQ_RESET 0x00 +#define DOC_SEQ_PAGE_SIZE_532 0x03 +#define DOC_SEQ_SET_FASTMODE 0x05 +#define DOC_SEQ_SET_RELIABLEMODE 0x09 +#define DOC_SEQ_READ 0x12 +#define DOC_SEQ_SET_PLANE1 0x0e +#define DOC_SEQ_SET_PLANE2 0x10 +#define DOC_SEQ_PAGE_SETUP 0x1d +#define DOC_SEQ_ERASE 0x27 +#define DOC_SEQ_PLANES_STATUS 0x31 + +/* + * Flash commands + */ +#define DOC_CMD_READ_PLANE1 0x00 +#define DOC_CMD_SET_ADDR_READ 0x05 +#define DOC_CMD_READ_ALL_PLANES 0x30 +#define DOC_CMD_READ_PLANE2 0x50 +#define DOC_CMD_READ_FLASH 0xe0 +#define DOC_CMD_PAGE_SIZE_532 0x3c + +#define DOC_CMD_PROG_BLOCK_ADDR 0x60 +#define DOC_CMD_PROG_CYCLE1 0x80 +#define DOC_CMD_PROG_CYCLE2 0x10 +#define DOC_CMD_PROG_CYCLE3 0x11 +#define DOC_CMD_ERASECYCLE2 0xd0 +#define DOC_CMD_READ_STATUS 0x70 +#define DOC_CMD_PLANES_STATUS 0x71 + +#define DOC_CMD_RELIABLE_MODE 0x22 +#define DOC_CMD_FAST_MODE 0xa2 + +#define DOC_CMD_RESET 0xff + +/* + * Flash register : DOC_FLASHCONTROL + */ +#define DOC_CTRL_VIOLATION 0x20 +#define DOC_CTRL_CE 0x10 +#define DOC_CTRL_UNKNOWN_BITS 0x08 +#define DOC_CTRL_PROTECTION_ERROR 0x04 +#define DOC_CTRL_SEQUENCE_ERROR 0x02 +#define DOC_CTRL_FLASHREADY 0x01 + +/* + * Flash register : DOC_ASICMODE + */ +#define DOC_ASICMODE_RESET 0x00 +#define DOC_ASICMODE_NORMAL 0x01 +#define DOC_ASICMODE_POWERDOWN 0x02 +#define DOC_ASICMODE_MDWREN 0x04 +#define DOC_ASICMODE_BDETCT_RESET 0x08 +#define DOC_ASICMODE_RSTIN_RESET 0x10 +#define DOC_ASICMODE_RAM_WE 0x20 + +/* + * Flash register : DOC_ECCCONF0 + */ +#define DOC_ECCCONF0_WRITE_MODE 0x0000 +#define DOC_ECCCONF0_READ_MODE 0x8000 +#define DOC_ECCCONF0_AUTO_ECC_ENABLE 0x4000 +#define DOC_ECCCONF0_HAMMING_ENABLE 0x1000 +#define DOC_ECCCONF0_BCH_ENABLE 0x0800 +#define DOC_ECCCONF0_DATA_BYTES_MASK 0x07ff + +/* + * Flash register : DOC_ECCCONF1 + */ +#define DOC_ECCCONF1_BCH_SYNDROM_ERR 0x80 +#define DOC_ECCCONF1_UNKOWN1 0x40 +#define DOC_ECCCONF1_PAGE_IS_WRITTEN 0x20 +#define DOC_ECCCONF1_UNKOWN3 0x10 +#define DOC_ECCCONF1_HAMMING_BITS_MASK 0x0f + +/* + * Flash register : DOC_PROTECTION + */ +#define DOC_PROTECT_FOUNDRY_OTP_LOCK 0x01 +#define DOC_PROTECT_CUSTOMER_OTP_LOCK 0x02 +#define DOC_PROTECT_LOCK_INPUT 0x04 +#define DOC_PROTECT_STICKY_LOCK 0x08 +#define DOC_PROTECT_PROTECTION_ENABLED 0x10 +#define DOC_PROTECT_IPL_DOWNLOAD_LOCK 0x20 +#define DOC_PROTECT_PROTECTION_ERROR 0x80 + +/* + * Flash register : DOC_DPS0_STATUS and DOC_DPS1_STATUS + */ +#define DOC_DPS_OTP_PROTECTED 0x01 +#define DOC_DPS_READ_PROTECTED 0x02 +#define DOC_DPS_WRITE_PROTECTED 0x04 +#define DOC_DPS_HW_LOCK_ENABLED 0x08 +#define DOC_DPS_KEY_OK 0x80 + +/* + * Flash register : DOC_CONFIGURATION + */ +#define DOC_CONF_IF_CFG 0x80 +#define DOC_CONF_MAX_ID_MASK 0x30 +#define DOC_CONF_VCCQ_3V 0x01 + +/* + * Flash register : DOC_READADDRESS + */ +#define DOC_READADDR_INC 0x8000 +#define DOC_READADDR_ONE_BYTE 0x4000 +#define DOC_READADDR_ADDR_MASK 0x1fff + +/* + * Flash register : DOC_POWERMODE + */ +#define DOC_POWERDOWN_READY 0x80 + +/* + * Status of erase and write operation + */ +#define DOC_PLANES_STATUS_FAIL 0x01 +#define DOC_PLANES_STATUS_PLANE0_KO 0x02 +#define DOC_PLANES_STATUS_PLANE1_KO 0x04 + +/* + * DPS key management + * + * Each floor of docg3 has 2 protection areas: DPS0 and DPS1. These areas span + * across block boundaries, and define whether these blocks can be read or + * written. + * The definition is dynamically stored in page 0 of blocks (2,3) for DPS0, and + * page 0 of blocks (4,5) for DPS1. + */ +#define DOC_LAYOUT_DPS_KEY_LENGTH 8 + +/** + * struct docg3_cascade - Cascade of 1 to 4 docg3 chips + * @floors: floors (ie. one physical docg3 chip is one floor) + * @base: IO space to access all chips in the cascade + * @bch: the BCH correcting control structure + * @lock: lock to protect docg3 IO space from concurrent accesses + */ +struct docg3_cascade { + struct mtd_info *floors[DOC_MAX_NBFLOORS]; + void __iomem *base; + struct bch_control *bch; + struct mutex lock; +}; + +/** + * struct docg3 - DiskOnChip driver private data + * @dev: the device currently under control + * @cascade: the cascade this device belongs to + * @device_id: number of the cascaded DoCG3 device (0, 1, 2 or 3) + * @if_cfg: if true, reads are on 16bits, else reads are on 8bits + + * @reliable: if 0, docg3 in normal mode, if 1 docg3 in fast mode, if 2 in + * reliable mode + * Fast mode implies more errors than normal mode. + * Reliable mode implies that page 2*n and 2*n+1 are clones. + * @bbt: bad block table cache + * @oob_write_ofs: offset of the MTD where this OOB should belong (ie. in next + * page_write) + * @oob_autoecc: if 1, use only bytes 0-7, 15, and fill the others with HW ECC + * if 0, use all the 16 bytes. + * @oob_write_buf: prepared OOB for next page_write + */ +struct docg3 { + struct device *dev; + struct docg3_cascade *cascade; + unsigned int device_id:4; + unsigned int if_cfg:1; + unsigned int reliable:2; + int max_block; + u8 *bbt; + loff_t oob_write_ofs; + int oob_autoecc; + u8 oob_write_buf[DOC_LAYOUT_OOB_SIZE]; +}; + +#define doc_err(fmt, arg...) dev_err(docg3->dev, (fmt), ## arg) +#define doc_info(fmt, arg...) dev_info(docg3->dev, (fmt), ## arg) +#define doc_dbg(fmt, arg...) dev_dbg(docg3->dev, (fmt), ## arg) +#define doc_vdbg(fmt, arg...) dev_vdbg(docg3->dev, (fmt), ## arg) +#endif + +/* + * Trace events part + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM docg3 + +#if !defined(_MTD_DOCG3_TRACE) || defined(TRACE_HEADER_MULTI_READ) +#define _MTD_DOCG3_TRACE + +#include + +TRACE_EVENT(docg3_io, + TP_PROTO(int op, int width, u16 reg, int val), + TP_ARGS(op, width, reg, val), + TP_STRUCT__entry( + __field(int, op) + __field(unsigned char, width) + __field(u16, reg) + __field(int, val)), + TP_fast_assign( + __entry->op = op; + __entry->width = width; + __entry->reg = reg; + __entry->val = val;), + TP_printk("docg3: %s%02d reg=%04x, val=%04x", + __entry->op ? "write" : "read", __entry->width, + __entry->reg, __entry->val) + ); +#endif + +/* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE docg3 +#include -- cgit v1.2.3