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(). ... --- sound/pci/ctxfi/ctresource.c | 289 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 289 insertions(+) create mode 100644 sound/pci/ctxfi/ctresource.c (limited to 'sound/pci/ctxfi/ctresource.c') diff --git a/sound/pci/ctxfi/ctresource.c b/sound/pci/ctxfi/ctresource.c new file mode 100644 index 000000000..be1d3e613 --- /dev/null +++ b/sound/pci/ctxfi/ctresource.c @@ -0,0 +1,289 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2008, Creative Technology Ltd. All Rights Reserved. + * + * @File ctresource.c + * + * @Brief + * This file contains the implementation of some generic helper functions. + * + * @Author Liu Chun + * @Date May 15 2008 + */ + +#include "ctresource.h" +#include "cthardware.h" +#include +#include + +#define AUDIO_SLOT_BLOCK_NUM 256 + +/* Resource allocation based on bit-map management mechanism */ +static int +get_resource(u8 *rscs, unsigned int amount, + unsigned int multi, unsigned int *ridx) +{ + int i, j, k, n; + + /* Check whether there are sufficient resources to meet request. */ + for (i = 0, n = multi; i < amount; i++) { + j = i / 8; + k = i % 8; + if (rscs[j] & ((u8)1 << k)) { + n = multi; + continue; + } + if (!(--n)) + break; /* found sufficient contiguous resources */ + } + + if (i >= amount) { + /* Can not find sufficient contiguous resources */ + return -ENOENT; + } + + /* Mark the contiguous bits in resource bit-map as used */ + for (n = multi; n > 0; n--) { + j = i / 8; + k = i % 8; + rscs[j] |= ((u8)1 << k); + i--; + } + + *ridx = i + 1; + + return 0; +} + +static int put_resource(u8 *rscs, unsigned int multi, unsigned int idx) +{ + unsigned int i, j, k, n; + + /* Mark the contiguous bits in resource bit-map as used */ + for (n = multi, i = idx; n > 0; n--) { + j = i / 8; + k = i % 8; + rscs[j] &= ~((u8)1 << k); + i++; + } + + return 0; +} + +int mgr_get_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int *ridx) +{ + int err; + + if (n > mgr->avail) + return -ENOENT; + + err = get_resource(mgr->rscs, mgr->amount, n, ridx); + if (!err) + mgr->avail -= n; + + return err; +} + +int mgr_put_resource(struct rsc_mgr *mgr, unsigned int n, unsigned int idx) +{ + put_resource(mgr->rscs, n, idx); + mgr->avail += n; + + return 0; +} + +static const unsigned char offset_in_audio_slot_block[NUM_RSCTYP] = { + /* SRC channel is at Audio Ring slot 1 every 16 slots. */ + [SRC] = 0x1, + [AMIXER] = 0x4, + [SUM] = 0xc, +}; + +static int rsc_index(const struct rsc *rsc) +{ + return rsc->conj; +} + +static int audio_ring_slot(const struct rsc *rsc) +{ + return (rsc->conj << 4) + offset_in_audio_slot_block[rsc->type]; +} + +static void rsc_next_conj(struct rsc *rsc) +{ + unsigned int i; + for (i = 0; (i < 8) && (!(rsc->msr & (0x1 << i))); ) + i++; + rsc->conj += (AUDIO_SLOT_BLOCK_NUM >> i); +} + +static void rsc_master(struct rsc *rsc) +{ + rsc->conj = rsc->idx; +} + +static const struct rsc_ops rsc_generic_ops = { + .index = rsc_index, + .output_slot = audio_ring_slot, + .master = rsc_master, + .next_conj = rsc_next_conj, +}; + +int +rsc_init(struct rsc *rsc, u32 idx, enum RSCTYP type, u32 msr, struct hw *hw) +{ + int err = 0; + + rsc->idx = idx; + rsc->conj = idx; + rsc->type = type; + rsc->msr = msr; + rsc->hw = hw; + rsc->ops = &rsc_generic_ops; + if (!hw) { + rsc->ctrl_blk = NULL; + return 0; + } + + switch (type) { + case SRC: + err = hw->src_rsc_get_ctrl_blk(&rsc->ctrl_blk); + break; + case AMIXER: + err = hw->amixer_rsc_get_ctrl_blk(&rsc->ctrl_blk); + break; + case SRCIMP: + case SUM: + case DAIO: + break; + default: + dev_err(((struct hw *)hw)->card->dev, + "Invalid resource type value %d!\n", type); + return -EINVAL; + } + + if (err) { + dev_err(((struct hw *)hw)->card->dev, + "Failed to get resource control block!\n"); + return err; + } + + return 0; +} + +int rsc_uninit(struct rsc *rsc) +{ + if ((NULL != rsc->hw) && (NULL != rsc->ctrl_blk)) { + switch (rsc->type) { + case SRC: + rsc->hw->src_rsc_put_ctrl_blk(rsc->ctrl_blk); + break; + case AMIXER: + rsc->hw->amixer_rsc_put_ctrl_blk(rsc->ctrl_blk); + break; + case SUM: + case DAIO: + break; + default: + dev_err(((struct hw *)rsc->hw)->card->dev, + "Invalid resource type value %d!\n", + rsc->type); + break; + } + + rsc->hw = rsc->ctrl_blk = NULL; + } + + rsc->idx = rsc->conj = 0; + rsc->type = NUM_RSCTYP; + rsc->msr = 0; + + return 0; +} + +int rsc_mgr_init(struct rsc_mgr *mgr, enum RSCTYP type, + unsigned int amount, struct hw *hw) +{ + int err = 0; + + mgr->type = NUM_RSCTYP; + + mgr->rscs = kzalloc(DIV_ROUND_UP(amount, 8), GFP_KERNEL); + if (!mgr->rscs) + return -ENOMEM; + + switch (type) { + case SRC: + err = hw->src_mgr_get_ctrl_blk(&mgr->ctrl_blk); + break; + case SRCIMP: + err = hw->srcimp_mgr_get_ctrl_blk(&mgr->ctrl_blk); + break; + case AMIXER: + err = hw->amixer_mgr_get_ctrl_blk(&mgr->ctrl_blk); + break; + case DAIO: + err = hw->daio_mgr_get_ctrl_blk(hw, &mgr->ctrl_blk); + break; + case SUM: + break; + default: + dev_err(hw->card->dev, + "Invalid resource type value %d!\n", type); + err = -EINVAL; + goto error; + } + + if (err) { + dev_err(hw->card->dev, + "Failed to get manager control block!\n"); + goto error; + } + + mgr->type = type; + mgr->avail = mgr->amount = amount; + mgr->hw = hw; + + return 0; + +error: + kfree(mgr->rscs); + return err; +} + +int rsc_mgr_uninit(struct rsc_mgr *mgr) +{ + kfree(mgr->rscs); + mgr->rscs = NULL; + + if ((NULL != mgr->hw) && (NULL != mgr->ctrl_blk)) { + switch (mgr->type) { + case SRC: + mgr->hw->src_mgr_put_ctrl_blk(mgr->ctrl_blk); + break; + case SRCIMP: + mgr->hw->srcimp_mgr_put_ctrl_blk(mgr->ctrl_blk); + break; + case AMIXER: + mgr->hw->amixer_mgr_put_ctrl_blk(mgr->ctrl_blk); + break; + case DAIO: + mgr->hw->daio_mgr_put_ctrl_blk(mgr->ctrl_blk); + break; + case SUM: + break; + default: + dev_err(((struct hw *)mgr->hw)->card->dev, + "Invalid resource type value %d!\n", + mgr->type); + break; + } + + mgr->hw = mgr->ctrl_blk = NULL; + } + + mgr->type = NUM_RSCTYP; + mgr->avail = mgr->amount = 0; + + return 0; +} -- cgit v1.2.3