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/crypto/aspeed/aspeed-hace.c | 281 ++++++++++++++++++++++++++++++++++++ 1 file changed, 281 insertions(+) create mode 100644 drivers/crypto/aspeed/aspeed-hace.c (limited to 'drivers/crypto/aspeed/aspeed-hace.c') diff --git a/drivers/crypto/aspeed/aspeed-hace.c b/drivers/crypto/aspeed/aspeed-hace.c new file mode 100644 index 000000000..d2871e1de --- /dev/null +++ b/drivers/crypto/aspeed/aspeed-hace.c @@ -0,0 +1,281 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2021 Aspeed Technology Inc. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "aspeed-hace.h" + +#ifdef CONFIG_CRYPTO_DEV_ASPEED_DEBUG +#define HACE_DBG(d, fmt, ...) \ + dev_info((d)->dev, "%s() " fmt, __func__, ##__VA_ARGS__) +#else +#define HACE_DBG(d, fmt, ...) \ + dev_dbg((d)->dev, "%s() " fmt, __func__, ##__VA_ARGS__) +#endif + +/* HACE interrupt service routine */ +static irqreturn_t aspeed_hace_irq(int irq, void *dev) +{ + struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)dev; + struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine; + struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine; + u32 sts; + + sts = ast_hace_read(hace_dev, ASPEED_HACE_STS); + ast_hace_write(hace_dev, sts, ASPEED_HACE_STS); + + HACE_DBG(hace_dev, "irq status: 0x%x\n", sts); + + if (sts & HACE_HASH_ISR) { + if (hash_engine->flags & CRYPTO_FLAGS_BUSY) + tasklet_schedule(&hash_engine->done_task); + else + dev_warn(hace_dev->dev, "HASH no active requests.\n"); + } + + if (sts & HACE_CRYPTO_ISR) { + if (crypto_engine->flags & CRYPTO_FLAGS_BUSY) + tasklet_schedule(&crypto_engine->done_task); + else + dev_warn(hace_dev->dev, "CRYPTO no active requests.\n"); + } + + return IRQ_HANDLED; +} + +static void aspeed_hace_crypto_done_task(unsigned long data) +{ + struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)data; + struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine; + + crypto_engine->resume(hace_dev); +} + +static void aspeed_hace_hash_done_task(unsigned long data) +{ + struct aspeed_hace_dev *hace_dev = (struct aspeed_hace_dev *)data; + struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine; + + hash_engine->resume(hace_dev); +} + +static void aspeed_hace_register(struct aspeed_hace_dev *hace_dev) +{ +#ifdef CONFIG_CRYPTO_DEV_ASPEED_HACE_HASH + aspeed_register_hace_hash_algs(hace_dev); +#endif +#ifdef CONFIG_CRYPTO_DEV_ASPEED_HACE_CRYPTO + aspeed_register_hace_crypto_algs(hace_dev); +#endif +} + +static void aspeed_hace_unregister(struct aspeed_hace_dev *hace_dev) +{ +#ifdef CONFIG_CRYPTO_DEV_ASPEED_HACE_HASH + aspeed_unregister_hace_hash_algs(hace_dev); +#endif +#ifdef CONFIG_CRYPTO_DEV_ASPEED_HACE_CRYPTO + aspeed_unregister_hace_crypto_algs(hace_dev); +#endif +} + +static const struct of_device_id aspeed_hace_of_matches[] = { + { .compatible = "aspeed,ast2500-hace", .data = (void *)5, }, + { .compatible = "aspeed,ast2600-hace", .data = (void *)6, }, + {}, +}; + +static int aspeed_hace_probe(struct platform_device *pdev) +{ + struct aspeed_engine_crypto *crypto_engine; + const struct of_device_id *hace_dev_id; + struct aspeed_engine_hash *hash_engine; + struct aspeed_hace_dev *hace_dev; + int rc; + + hace_dev = devm_kzalloc(&pdev->dev, sizeof(struct aspeed_hace_dev), + GFP_KERNEL); + if (!hace_dev) + return -ENOMEM; + + hace_dev_id = of_match_device(aspeed_hace_of_matches, &pdev->dev); + if (!hace_dev_id) { + dev_err(&pdev->dev, "Failed to match hace dev id\n"); + return -EINVAL; + } + + hace_dev->dev = &pdev->dev; + hace_dev->version = (unsigned long)hace_dev_id->data; + hash_engine = &hace_dev->hash_engine; + crypto_engine = &hace_dev->crypto_engine; + + platform_set_drvdata(pdev, hace_dev); + + hace_dev->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL); + if (IS_ERR(hace_dev->regs)) + return PTR_ERR(hace_dev->regs); + + /* Get irq number and register it */ + hace_dev->irq = platform_get_irq(pdev, 0); + if (hace_dev->irq < 0) + return -ENXIO; + + rc = devm_request_irq(&pdev->dev, hace_dev->irq, aspeed_hace_irq, 0, + dev_name(&pdev->dev), hace_dev); + if (rc) { + dev_err(&pdev->dev, "Failed to request interrupt\n"); + return rc; + } + + /* Get clk and enable it */ + hace_dev->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(hace_dev->clk)) { + dev_err(&pdev->dev, "Failed to get clk\n"); + return -ENODEV; + } + + rc = clk_prepare_enable(hace_dev->clk); + if (rc) { + dev_err(&pdev->dev, "Failed to enable clock 0x%x\n", rc); + return rc; + } + + /* Initialize crypto hardware engine structure for hash */ + hace_dev->crypt_engine_hash = crypto_engine_alloc_init(hace_dev->dev, + true); + if (!hace_dev->crypt_engine_hash) { + rc = -ENOMEM; + goto clk_exit; + } + + rc = crypto_engine_start(hace_dev->crypt_engine_hash); + if (rc) + goto err_engine_hash_start; + + tasklet_init(&hash_engine->done_task, aspeed_hace_hash_done_task, + (unsigned long)hace_dev); + + /* Initialize crypto hardware engine structure for crypto */ + hace_dev->crypt_engine_crypto = crypto_engine_alloc_init(hace_dev->dev, + true); + if (!hace_dev->crypt_engine_crypto) { + rc = -ENOMEM; + goto err_engine_hash_start; + } + + rc = crypto_engine_start(hace_dev->crypt_engine_crypto); + if (rc) + goto err_engine_crypto_start; + + tasklet_init(&crypto_engine->done_task, aspeed_hace_crypto_done_task, + (unsigned long)hace_dev); + + /* Allocate DMA buffer for hash engine input used */ + hash_engine->ahash_src_addr = + dmam_alloc_coherent(&pdev->dev, + ASPEED_HASH_SRC_DMA_BUF_LEN, + &hash_engine->ahash_src_dma_addr, + GFP_KERNEL); + if (!hash_engine->ahash_src_addr) { + dev_err(&pdev->dev, "Failed to allocate dma buffer\n"); + rc = -ENOMEM; + goto err_engine_crypto_start; + } + + /* Allocate DMA buffer for crypto engine context used */ + crypto_engine->cipher_ctx = + dmam_alloc_coherent(&pdev->dev, + PAGE_SIZE, + &crypto_engine->cipher_ctx_dma, + GFP_KERNEL); + if (!crypto_engine->cipher_ctx) { + dev_err(&pdev->dev, "Failed to allocate cipher ctx dma\n"); + rc = -ENOMEM; + goto err_engine_crypto_start; + } + + /* Allocate DMA buffer for crypto engine input used */ + crypto_engine->cipher_addr = + dmam_alloc_coherent(&pdev->dev, + ASPEED_CRYPTO_SRC_DMA_BUF_LEN, + &crypto_engine->cipher_dma_addr, + GFP_KERNEL); + if (!crypto_engine->cipher_addr) { + dev_err(&pdev->dev, "Failed to allocate cipher addr dma\n"); + rc = -ENOMEM; + goto err_engine_crypto_start; + } + + /* Allocate DMA buffer for crypto engine output used */ + if (hace_dev->version == AST2600_VERSION) { + crypto_engine->dst_sg_addr = + dmam_alloc_coherent(&pdev->dev, + ASPEED_CRYPTO_DST_DMA_BUF_LEN, + &crypto_engine->dst_sg_dma_addr, + GFP_KERNEL); + if (!crypto_engine->dst_sg_addr) { + dev_err(&pdev->dev, "Failed to allocate dst_sg dma\n"); + rc = -ENOMEM; + goto err_engine_crypto_start; + } + } + + aspeed_hace_register(hace_dev); + + dev_info(&pdev->dev, "Aspeed Crypto Accelerator successfully registered\n"); + + return 0; + +err_engine_crypto_start: + crypto_engine_exit(hace_dev->crypt_engine_crypto); +err_engine_hash_start: + crypto_engine_exit(hace_dev->crypt_engine_hash); +clk_exit: + clk_disable_unprepare(hace_dev->clk); + + return rc; +} + +static int aspeed_hace_remove(struct platform_device *pdev) +{ + struct aspeed_hace_dev *hace_dev = platform_get_drvdata(pdev); + struct aspeed_engine_crypto *crypto_engine = &hace_dev->crypto_engine; + struct aspeed_engine_hash *hash_engine = &hace_dev->hash_engine; + + aspeed_hace_unregister(hace_dev); + + crypto_engine_exit(hace_dev->crypt_engine_hash); + crypto_engine_exit(hace_dev->crypt_engine_crypto); + + tasklet_kill(&hash_engine->done_task); + tasklet_kill(&crypto_engine->done_task); + + clk_disable_unprepare(hace_dev->clk); + + return 0; +} + +MODULE_DEVICE_TABLE(of, aspeed_hace_of_matches); + +static struct platform_driver aspeed_hace_driver = { + .probe = aspeed_hace_probe, + .remove = aspeed_hace_remove, + .driver = { + .name = KBUILD_MODNAME, + .of_match_table = aspeed_hace_of_matches, + }, +}; + +module_platform_driver(aspeed_hace_driver); + +MODULE_AUTHOR("Neal Liu "); +MODULE_DESCRIPTION("Aspeed HACE driver Crypto Accelerator"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3