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/qce/core.c | 299 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 299 insertions(+) create mode 100644 drivers/crypto/qce/core.c (limited to 'drivers/crypto/qce/core.c') diff --git a/drivers/crypto/qce/core.c b/drivers/crypto/qce/core.c new file mode 100644 index 000000000..74deca4f9 --- /dev/null +++ b/drivers/crypto/qce/core.c @@ -0,0 +1,299 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "core.h" +#include "cipher.h" +#include "sha.h" +#include "aead.h" + +#define QCE_MAJOR_VERSION5 0x05 +#define QCE_QUEUE_LENGTH 1 + +static const struct qce_algo_ops *qce_ops[] = { +#ifdef CONFIG_CRYPTO_DEV_QCE_SKCIPHER + &skcipher_ops, +#endif +#ifdef CONFIG_CRYPTO_DEV_QCE_SHA + &ahash_ops, +#endif +#ifdef CONFIG_CRYPTO_DEV_QCE_AEAD + &aead_ops, +#endif +}; + +static void qce_unregister_algs(struct qce_device *qce) +{ + const struct qce_algo_ops *ops; + int i; + + for (i = 0; i < ARRAY_SIZE(qce_ops); i++) { + ops = qce_ops[i]; + ops->unregister_algs(qce); + } +} + +static int qce_register_algs(struct qce_device *qce) +{ + const struct qce_algo_ops *ops; + int i, ret = -ENODEV; + + for (i = 0; i < ARRAY_SIZE(qce_ops); i++) { + ops = qce_ops[i]; + ret = ops->register_algs(qce); + if (ret) + break; + } + + return ret; +} + +static int qce_handle_request(struct crypto_async_request *async_req) +{ + int ret = -EINVAL, i; + const struct qce_algo_ops *ops; + u32 type = crypto_tfm_alg_type(async_req->tfm); + + for (i = 0; i < ARRAY_SIZE(qce_ops); i++) { + ops = qce_ops[i]; + if (type != ops->type) + continue; + ret = ops->async_req_handle(async_req); + break; + } + + return ret; +} + +static int qce_handle_queue(struct qce_device *qce, + struct crypto_async_request *req) +{ + struct crypto_async_request *async_req, *backlog; + unsigned long flags; + int ret = 0, err; + + spin_lock_irqsave(&qce->lock, flags); + + if (req) + ret = crypto_enqueue_request(&qce->queue, req); + + /* busy, do not dequeue request */ + if (qce->req) { + spin_unlock_irqrestore(&qce->lock, flags); + return ret; + } + + backlog = crypto_get_backlog(&qce->queue); + async_req = crypto_dequeue_request(&qce->queue); + if (async_req) + qce->req = async_req; + + spin_unlock_irqrestore(&qce->lock, flags); + + if (!async_req) + return ret; + + if (backlog) { + spin_lock_bh(&qce->lock); + crypto_request_complete(backlog, -EINPROGRESS); + spin_unlock_bh(&qce->lock); + } + + err = qce_handle_request(async_req); + if (err) { + qce->result = err; + tasklet_schedule(&qce->done_tasklet); + } + + return ret; +} + +static void qce_tasklet_req_done(unsigned long data) +{ + struct qce_device *qce = (struct qce_device *)data; + struct crypto_async_request *req; + unsigned long flags; + + spin_lock_irqsave(&qce->lock, flags); + req = qce->req; + qce->req = NULL; + spin_unlock_irqrestore(&qce->lock, flags); + + if (req) + crypto_request_complete(req, qce->result); + + qce_handle_queue(qce, NULL); +} + +static int qce_async_request_enqueue(struct qce_device *qce, + struct crypto_async_request *req) +{ + return qce_handle_queue(qce, req); +} + +static void qce_async_request_done(struct qce_device *qce, int ret) +{ + qce->result = ret; + tasklet_schedule(&qce->done_tasklet); +} + +static int qce_check_version(struct qce_device *qce) +{ + u32 major, minor, step; + + qce_get_version(qce, &major, &minor, &step); + + /* + * the driver does not support v5 with minor 0 because it has special + * alignment requirements. + */ + if (major != QCE_MAJOR_VERSION5 || minor == 0) + return -ENODEV; + + qce->burst_size = QCE_BAM_BURST_SIZE; + + /* + * Rx and tx pipes are treated as a pair inside CE. + * Pipe pair number depends on the actual BAM dma pipe + * that is used for transfers. The BAM dma pipes are passed + * from the device tree and used to derive the pipe pair + * id in the CE driver as follows. + * BAM dma pipes(rx, tx) CE pipe pair id + * 0,1 0 + * 2,3 1 + * 4,5 2 + * 6,7 3 + * ... + */ + qce->pipe_pair_id = qce->dma.rxchan->chan_id >> 1; + + dev_dbg(qce->dev, "Crypto device found, version %d.%d.%d\n", + major, minor, step); + + return 0; +} + +static int qce_crypto_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct qce_device *qce; + int ret; + + qce = devm_kzalloc(dev, sizeof(*qce), GFP_KERNEL); + if (!qce) + return -ENOMEM; + + qce->dev = dev; + platform_set_drvdata(pdev, qce); + + qce->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(qce->base)) + return PTR_ERR(qce->base); + + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); + if (ret < 0) + return ret; + + qce->core = devm_clk_get(qce->dev, "core"); + if (IS_ERR(qce->core)) + return PTR_ERR(qce->core); + + qce->iface = devm_clk_get(qce->dev, "iface"); + if (IS_ERR(qce->iface)) + return PTR_ERR(qce->iface); + + qce->bus = devm_clk_get(qce->dev, "bus"); + if (IS_ERR(qce->bus)) + return PTR_ERR(qce->bus); + + ret = clk_prepare_enable(qce->core); + if (ret) + return ret; + + ret = clk_prepare_enable(qce->iface); + if (ret) + goto err_clks_core; + + ret = clk_prepare_enable(qce->bus); + if (ret) + goto err_clks_iface; + + ret = qce_dma_request(qce->dev, &qce->dma); + if (ret) + goto err_clks; + + ret = qce_check_version(qce); + if (ret) + goto err_clks; + + spin_lock_init(&qce->lock); + tasklet_init(&qce->done_tasklet, qce_tasklet_req_done, + (unsigned long)qce); + crypto_init_queue(&qce->queue, QCE_QUEUE_LENGTH); + + qce->async_req_enqueue = qce_async_request_enqueue; + qce->async_req_done = qce_async_request_done; + + ret = qce_register_algs(qce); + if (ret) + goto err_dma; + + return 0; + +err_dma: + qce_dma_release(&qce->dma); +err_clks: + clk_disable_unprepare(qce->bus); +err_clks_iface: + clk_disable_unprepare(qce->iface); +err_clks_core: + clk_disable_unprepare(qce->core); + return ret; +} + +static int qce_crypto_remove(struct platform_device *pdev) +{ + struct qce_device *qce = platform_get_drvdata(pdev); + + tasklet_kill(&qce->done_tasklet); + qce_unregister_algs(qce); + qce_dma_release(&qce->dma); + clk_disable_unprepare(qce->bus); + clk_disable_unprepare(qce->iface); + clk_disable_unprepare(qce->core); + return 0; +} + +static const struct of_device_id qce_crypto_of_match[] = { + { .compatible = "qcom,crypto-v5.1", }, + { .compatible = "qcom,crypto-v5.4", }, + {} +}; +MODULE_DEVICE_TABLE(of, qce_crypto_of_match); + +static struct platform_driver qce_crypto_driver = { + .probe = qce_crypto_probe, + .remove = qce_crypto_remove, + .driver = { + .name = KBUILD_MODNAME, + .of_match_table = qce_crypto_of_match, + }, +}; +module_platform_driver(qce_crypto_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Qualcomm crypto engine driver"); +MODULE_ALIAS("platform:" KBUILD_MODNAME); +MODULE_AUTHOR("The Linux Foundation"); -- cgit v1.2.3