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(). ... --- fs/affs/affs.h | 328 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 328 insertions(+) create mode 100644 fs/affs/affs.h (limited to 'fs/affs/affs.h') diff --git a/fs/affs/affs.h b/fs/affs/affs.h new file mode 100644 index 000000000..60685ec76 --- /dev/null +++ b/fs/affs/affs.h @@ -0,0 +1,328 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifdef pr_fmt +#undef pr_fmt +#endif + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include "amigaffs.h" +#include +#include + +/* Ugly macros make the code more pretty. */ + +#define GET_END_PTR(st,p,sz) ((st *)((char *)(p)+((sz)-sizeof(st)))) +#define AFFS_GET_HASHENTRY(data,hashkey) be32_to_cpu(((struct dir_front *)data)->hashtable[hashkey]) +#define AFFS_BLOCK(sb, bh, blk) (AFFS_HEAD(bh)->table[AFFS_SB(sb)->s_hashsize-1-(blk)]) + +#define AFFS_HEAD(bh) ((struct affs_head *)(bh)->b_data) +#define AFFS_TAIL(sb, bh) ((struct affs_tail *)((bh)->b_data+(sb)->s_blocksize-sizeof(struct affs_tail))) +#define AFFS_ROOT_HEAD(bh) ((struct affs_root_head *)(bh)->b_data) +#define AFFS_ROOT_TAIL(sb, bh) ((struct affs_root_tail *)((bh)->b_data+(sb)->s_blocksize-sizeof(struct affs_root_tail))) +#define AFFS_DATA_HEAD(bh) ((struct affs_data_head *)(bh)->b_data) +#define AFFS_DATA(bh) (((struct affs_data_head *)(bh)->b_data)->data) + +#define AFFS_CACHE_SIZE PAGE_SIZE + +#define AFFS_LC_SIZE (AFFS_CACHE_SIZE/sizeof(u32)/2) +#define AFFS_AC_SIZE (AFFS_CACHE_SIZE/sizeof(struct affs_ext_key)/2) +#define AFFS_AC_MASK (AFFS_AC_SIZE-1) + +#define AFFSNAMEMAX 30U + +struct affs_ext_key { + u32 ext; /* idx of the extended block */ + u32 key; /* block number */ +}; + +/* + * affs fs inode data in memory + */ +struct affs_inode_info { + atomic_t i_opencnt; + struct mutex i_link_lock; /* Protects internal inode access. */ + struct mutex i_ext_lock; /* Protects internal inode access. */ +#define i_hash_lock i_ext_lock + u32 i_blkcnt; /* block count */ + u32 i_extcnt; /* extended block count */ + u32 *i_lc; /* linear cache of extended blocks */ + u32 i_lc_size; + u32 i_lc_shift; + u32 i_lc_mask; + struct affs_ext_key *i_ac; /* associative cache of extended blocks */ + u32 i_ext_last; /* last accessed extended block */ + struct buffer_head *i_ext_bh; /* bh of last extended block */ + loff_t mmu_private; + u32 i_protect; /* unused attribute bits */ + u32 i_lastalloc; /* last allocated block */ + int i_pa_cnt; /* number of preallocated blocks */ + struct inode vfs_inode; +}; + +/* short cut to get to the affs specific inode data */ +static inline struct affs_inode_info *AFFS_I(struct inode *inode) +{ + return container_of(inode, struct affs_inode_info, vfs_inode); +} + +/* + * super-block data in memory + * + * Block numbers are adjusted for their actual size + * + */ + +struct affs_bm_info { + u32 bm_key; /* Disk block number */ + u32 bm_free; /* Free blocks in here */ +}; + +struct affs_sb_info { + int s_partition_size; /* Partition size in blocks. */ + int s_reserved; /* Number of reserved blocks. */ + //u32 s_blksize; /* Initial device blksize */ + u32 s_data_blksize; /* size of the data block w/o header */ + u32 s_root_block; /* FFS root block number. */ + int s_hashsize; /* Size of hash table. */ + unsigned long s_flags; /* See below. */ + kuid_t s_uid; /* uid to override */ + kgid_t s_gid; /* gid to override */ + umode_t s_mode; /* mode to override */ + struct buffer_head *s_root_bh; /* Cached root block. */ + struct mutex s_bmlock; /* Protects bitmap access. */ + struct affs_bm_info *s_bitmap; /* Bitmap infos. */ + u32 s_bmap_count; /* # of bitmap blocks. */ + u32 s_bmap_bits; /* # of bits in one bitmap blocks */ + u32 s_last_bmap; + struct buffer_head *s_bmap_bh; + char *s_prefix; /* Prefix for volumes and assigns. */ + char s_volume[32]; /* Volume prefix for absolute symlinks. */ + spinlock_t symlink_lock; /* protects the previous two */ + struct super_block *sb; /* the VFS superblock object */ + int work_queued; /* non-zero delayed work is queued */ + struct delayed_work sb_work; /* superblock flush delayed work */ + spinlock_t work_lock; /* protects sb_work and work_queued */ +}; + +#define AFFS_MOUNT_SF_INTL 0x0001 /* International filesystem. */ +#define AFFS_MOUNT_SF_BM_VALID 0x0002 /* Bitmap is valid. */ +#define AFFS_MOUNT_SF_IMMUTABLE 0x0004 /* Protection bits cannot be changed */ +#define AFFS_MOUNT_SF_QUIET 0x0008 /* chmod errors will be not reported */ +#define AFFS_MOUNT_SF_SETUID 0x0010 /* Ignore Amiga uid */ +#define AFFS_MOUNT_SF_SETGID 0x0020 /* Ignore Amiga gid */ +#define AFFS_MOUNT_SF_SETMODE 0x0040 /* Ignore Amiga protection bits */ +#define AFFS_MOUNT_SF_MUFS 0x0100 /* Use MUFS uid/gid mapping */ +#define AFFS_MOUNT_SF_OFS 0x0200 /* Old filesystem */ +#define AFFS_MOUNT_SF_PREFIX 0x0400 /* Buffer for prefix is allocated */ +#define AFFS_MOUNT_SF_VERBOSE 0x0800 /* Talk about fs when mounting */ +#define AFFS_MOUNT_SF_NO_TRUNCATE 0x1000 /* Don't truncate filenames */ + +#define affs_clear_opt(o, opt) (o &= ~AFFS_MOUNT_##opt) +#define affs_set_opt(o, opt) (o |= AFFS_MOUNT_##opt) +#define affs_test_opt(o, opt) ((o) & AFFS_MOUNT_##opt) + +/* short cut to get to the affs specific sb data */ +static inline struct affs_sb_info *AFFS_SB(struct super_block *sb) +{ + return sb->s_fs_info; +} + +void affs_mark_sb_dirty(struct super_block *sb); + +/* amigaffs.c */ + +extern int affs_insert_hash(struct inode *inode, struct buffer_head *bh); +extern int affs_remove_hash(struct inode *dir, struct buffer_head *rem_bh); +extern int affs_remove_header(struct dentry *dentry); +extern u32 affs_checksum_block(struct super_block *sb, struct buffer_head *bh); +extern void affs_fix_checksum(struct super_block *sb, struct buffer_head *bh); +extern void affs_secs_to_datestamp(time64_t secs, struct affs_date *ds); +extern umode_t affs_prot_to_mode(u32 prot); +extern void affs_mode_to_prot(struct inode *inode); +__printf(3, 4) +extern void affs_error(struct super_block *sb, const char *function, + const char *fmt, ...); +__printf(3, 4) +extern void affs_warning(struct super_block *sb, const char *function, + const char *fmt, ...); +extern bool affs_nofilenametruncate(const struct dentry *dentry); +extern int affs_check_name(const unsigned char *name, int len, + bool notruncate); +extern int affs_copy_name(unsigned char *bstr, struct dentry *dentry); + +/* bitmap. c */ + +extern u32 affs_count_free_blocks(struct super_block *s); +extern void affs_free_block(struct super_block *sb, u32 block); +extern u32 affs_alloc_block(struct inode *inode, u32 goal); +extern int affs_init_bitmap(struct super_block *sb, int *flags); +extern void affs_free_bitmap(struct super_block *sb); + +/* namei.c */ + +extern const struct export_operations affs_export_ops; +extern int affs_hash_name(struct super_block *sb, const u8 *name, unsigned int len); +extern struct dentry *affs_lookup(struct inode *dir, struct dentry *dentry, unsigned int); +extern int affs_unlink(struct inode *dir, struct dentry *dentry); +extern int affs_create(struct mnt_idmap *idmap, struct inode *dir, + struct dentry *dentry, umode_t mode, bool); +extern int affs_mkdir(struct mnt_idmap *idmap, struct inode *dir, + struct dentry *dentry, umode_t mode); +extern int affs_rmdir(struct inode *dir, struct dentry *dentry); +extern int affs_link(struct dentry *olddentry, struct inode *dir, + struct dentry *dentry); +extern int affs_symlink(struct mnt_idmap *idmap, + struct inode *dir, struct dentry *dentry, + const char *symname); +extern int affs_rename2(struct mnt_idmap *idmap, + struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags); + +/* inode.c */ + +extern struct inode *affs_new_inode(struct inode *dir); +extern int affs_notify_change(struct mnt_idmap *idmap, + struct dentry *dentry, struct iattr *attr); +extern void affs_evict_inode(struct inode *inode); +extern struct inode *affs_iget(struct super_block *sb, + unsigned long ino); +extern int affs_write_inode(struct inode *inode, + struct writeback_control *wbc); +extern int affs_add_entry(struct inode *dir, struct inode *inode, + struct dentry *dentry, s32 type); + +/* file.c */ + +void affs_free_prealloc(struct inode *inode); +extern void affs_truncate(struct inode *); +int affs_file_fsync(struct file *, loff_t, loff_t, int); + +/* dir.c */ + +extern void affs_dir_truncate(struct inode *); + +/* jump tables */ + +extern const struct inode_operations affs_file_inode_operations; +extern const struct inode_operations affs_dir_inode_operations; +extern const struct inode_operations affs_symlink_inode_operations; +extern const struct file_operations affs_file_operations; +extern const struct file_operations affs_file_operations_ofs; +extern const struct file_operations affs_dir_operations; +extern const struct address_space_operations affs_symlink_aops; +extern const struct address_space_operations affs_aops; +extern const struct address_space_operations affs_aops_ofs; + +extern const struct dentry_operations affs_dentry_operations; +extern const struct dentry_operations affs_intl_dentry_operations; + +static inline bool affs_validblock(struct super_block *sb, int block) +{ + return(block >= AFFS_SB(sb)->s_reserved && + block < AFFS_SB(sb)->s_partition_size); +} + +static inline void +affs_set_blocksize(struct super_block *sb, int size) +{ + sb_set_blocksize(sb, size); +} +static inline struct buffer_head * +affs_bread(struct super_block *sb, int block) +{ + pr_debug("%s: %d\n", __func__, block); + if (affs_validblock(sb, block)) + return sb_bread(sb, block); + return NULL; +} +static inline struct buffer_head * +affs_getblk(struct super_block *sb, int block) +{ + pr_debug("%s: %d\n", __func__, block); + if (affs_validblock(sb, block)) + return sb_getblk(sb, block); + return NULL; +} +static inline struct buffer_head * +affs_getzeroblk(struct super_block *sb, int block) +{ + struct buffer_head *bh; + pr_debug("%s: %d\n", __func__, block); + if (affs_validblock(sb, block)) { + bh = sb_getblk(sb, block); + lock_buffer(bh); + memset(bh->b_data, 0 , sb->s_blocksize); + set_buffer_uptodate(bh); + unlock_buffer(bh); + return bh; + } + return NULL; +} +static inline struct buffer_head * +affs_getemptyblk(struct super_block *sb, int block) +{ + struct buffer_head *bh; + pr_debug("%s: %d\n", __func__, block); + if (affs_validblock(sb, block)) { + bh = sb_getblk(sb, block); + wait_on_buffer(bh); + set_buffer_uptodate(bh); + return bh; + } + return NULL; +} +static inline void +affs_brelse(struct buffer_head *bh) +{ + if (bh) + pr_debug("%s: %lld\n", __func__, (long long) bh->b_blocknr); + brelse(bh); +} + +static inline void +affs_adjust_checksum(struct buffer_head *bh, u32 val) +{ + u32 tmp = be32_to_cpu(((__be32 *)bh->b_data)[5]); + ((__be32 *)bh->b_data)[5] = cpu_to_be32(tmp - val); +} +static inline void +affs_adjust_bitmapchecksum(struct buffer_head *bh, u32 val) +{ + u32 tmp = be32_to_cpu(((__be32 *)bh->b_data)[0]); + ((__be32 *)bh->b_data)[0] = cpu_to_be32(tmp - val); +} + +static inline void +affs_lock_link(struct inode *inode) +{ + mutex_lock(&AFFS_I(inode)->i_link_lock); +} +static inline void +affs_unlock_link(struct inode *inode) +{ + mutex_unlock(&AFFS_I(inode)->i_link_lock); +} +static inline void +affs_lock_dir(struct inode *inode) +{ + mutex_lock_nested(&AFFS_I(inode)->i_hash_lock, SINGLE_DEPTH_NESTING); +} +static inline void +affs_unlock_dir(struct inode *inode) +{ + mutex_unlock(&AFFS_I(inode)->i_hash_lock); +} +static inline void +affs_lock_ext(struct inode *inode) +{ + mutex_lock(&AFFS_I(inode)->i_ext_lock); +} +static inline void +affs_unlock_ext(struct inode *inode) +{ + mutex_unlock(&AFFS_I(inode)->i_ext_lock); +} -- cgit v1.2.3