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/gemini/sl3516-ce.h | 347 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 347 insertions(+) create mode 100644 drivers/crypto/gemini/sl3516-ce.h (limited to 'drivers/crypto/gemini/sl3516-ce.h') diff --git a/drivers/crypto/gemini/sl3516-ce.h b/drivers/crypto/gemini/sl3516-ce.h new file mode 100644 index 000000000..4c0ec6c92 --- /dev/null +++ b/drivers/crypto/gemini/sl3516-ce.h @@ -0,0 +1,347 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * sl3516-ce.h - hardware cryptographic offloader for cortina/gemini SoC + * + * Copyright (C) 2021 Corentin LABBE + * + * General notes on this driver: + * Called either Crypto Acceleration Engine Module, Security Acceleration Engine + * or IPSEC module in the datasheet, it will be called Crypto Engine for short + * in this driver. + * The CE was designed to handle IPSEC and wifi(TKIP WEP) protocol. + * It can handle AES, DES, 3DES, MD5, WEP, TKIP, SHA1, HMAC(MD5), HMAC(SHA1), + * Michael cipher/digest suites. + * It acts the same as a network hw, with both RX and TX chained descriptors. + */ +#include +#include +#include +#include +#include +#include +#include + +#define TQ0_TYPE_DATA 0 +#define TQ0_TYPE_CTRL BIT(0) +#define TQ1_CIPHER BIT(1) +#define TQ2_AUTH BIT(2) +#define TQ3_IV BIT(3) +#define TQ4_KEY0 BIT(4) +#define TQ5_KEY4 BIT(5) +#define TQ6_KEY6 BIT(6) +#define TQ7_AKEY0 BIT(7) +#define TQ8_AKEY2 BIT(8) +#define TQ9_AKEY2 BIT(9) + +#define ECB_AES 0x2 + +#define DESC_LAST 0x01 +#define DESC_FIRST 0x02 + +#define IPSEC_ID 0x0000 +#define IPSEC_STATUS_REG 0x00a8 +#define IPSEC_RAND_NUM_REG 0x00ac +#define IPSEC_DMA_DEVICE_ID 0xff00 +#define IPSEC_DMA_STATUS 0xff04 +#define IPSEC_TXDMA_CTRL 0xff08 +#define IPSEC_TXDMA_FIRST_DESC 0xff0c +#define IPSEC_TXDMA_CURR_DESC 0xff10 +#define IPSEC_RXDMA_CTRL 0xff14 +#define IPSEC_RXDMA_FIRST_DESC 0xff18 +#define IPSEC_RXDMA_CURR_DESC 0xff1c +#define IPSEC_TXDMA_BUF_ADDR 0xff28 +#define IPSEC_RXDMA_BUF_ADDR 0xff38 +#define IPSEC_RXDMA_BUF_SIZE 0xff30 + +#define CE_ENCRYPTION 0x01 +#define CE_DECRYPTION 0x03 + +#define MAXDESC 6 + +#define DMA_STATUS_RS_EOFI BIT(22) +#define DMA_STATUS_RS_PERR BIT(24) +#define DMA_STATUS_RS_DERR BIT(25) +#define DMA_STATUS_TS_EOFI BIT(27) +#define DMA_STATUS_TS_PERR BIT(29) +#define DMA_STATUS_TS_DERR BIT(30) + +#define TXDMA_CTRL_START BIT(31) +#define TXDMA_CTRL_CONTINUE BIT(30) +#define TXDMA_CTRL_CHAIN_MODE BIT(29) +/* the burst value is not documented in the datasheet */ +#define TXDMA_CTRL_BURST_UNK BIT(22) +#define TXDMA_CTRL_INT_FAIL BIT(17) +#define TXDMA_CTRL_INT_PERR BIT(16) + +#define RXDMA_CTRL_START BIT(31) +#define RXDMA_CTRL_CONTINUE BIT(30) +#define RXDMA_CTRL_CHAIN_MODE BIT(29) +/* the burst value is not documented in the datasheet */ +#define RXDMA_CTRL_BURST_UNK BIT(22) +#define RXDMA_CTRL_INT_FINISH BIT(18) +#define RXDMA_CTRL_INT_FAIL BIT(17) +#define RXDMA_CTRL_INT_PERR BIT(16) +#define RXDMA_CTRL_INT_EOD BIT(15) +#define RXDMA_CTRL_INT_EOF BIT(14) + +#define CE_CPU 0 +#define CE_DMA 1 + +/* + * struct sl3516_ce_descriptor - descriptor for CE operations + * @frame_ctrl: Information for the current descriptor + * @flag_status: For send packet, describe flag of operations. + * @buf_adr: pointer to a send/recv buffer for data packet + * @next_desc: control linking to other descriptors + */ +struct descriptor { + union { + u32 raw; + /* + * struct desc_frame_ctrl - Information for the current descriptor + * @buffer_size: the size of buffer at buf_adr + * @desc_count: Upon completion of a DMA operation, DMA + * write the number of descriptors used + * for the current frame + * @checksum: unknown + * @authcomp: unknown + * @perr: Protocol error during processing this descriptor + * @derr: Data error during processing this descriptor + * @own: 0 if owned by CPU, 1 for DMA + */ + struct desc_frame_ctrl { + u32 buffer_size :16; + u32 desc_count :6; + u32 checksum :6; + u32 authcomp :1; + u32 perr :1; + u32 derr :1; + u32 own :1; + } bits; + } frame_ctrl; + + union { + u32 raw; + /* + * struct desc_flag_status - flag for this descriptor + * @tqflag: list of flag describing the type of operation + * to be performed. + */ + struct desc_tx_flag_status { + u32 tqflag :10; + u32 unused :22; + } tx_flag; + } flag_status; + + u32 buf_adr; + + union { + u32 next_descriptor; + /* + * struct desc_next - describe chaining of descriptors + * @sof_eof: does the descriptor is first (0x11), + * the last (0x01), middle of a chan (0x00) + * or the only one (0x11) + * @dec: AHB bus address increase (0), decrease (1) + * @eofie: End of frame interrupt enable + * @ndar: Next descriptor address + */ + struct desc_next { + u32 sof_eof :2; + u32 dec :1; + u32 eofie :1; + u32 ndar :28; + } bits; + } next_desc; +}; + +/* + * struct control - The value of this register is used to set the + * operation mode of the IPSec Module. + * @process_id: Used to identify the process. The number will be copied + * to the descriptor status of the received packet. + * @auth_check_len: Number of 32-bit words to be checked or appended by the + * authentication module + * @auth_algorithm: + * @auth_mode: 0:append 1:Check Authentication Result + * @fcs_stream_copy: 0:enable 1:disable authentication stream copy + * @mix_key_sel: 0:use rCipherKey0-3 1:use Key Mixer + * @aesnk: AES Key Size + * @cipher_algorithm: choice of CBC/ECE and AES/DES/3DES + * @op_mode: Operation Mode for the IPSec Module + */ +struct pkt_control_header { + u32 process_id :8; + u32 auth_check_len :3; + u32 un1 :1; + u32 auth_algorithm :3; + u32 auth_mode :1; + u32 fcs_stream_copy :1; + u32 un2 :2; + u32 mix_key_sel :1; + u32 aesnk :4; + u32 cipher_algorithm :3; + u32 un3 :1; + u32 op_mode :4; +}; + +struct pkt_control_cipher { + u32 algorithm_len :16; + u32 header_len :16; +}; + +/* + * struct pkt_control_ecb - control packet for ECB + */ +struct pkt_control_ecb { + struct pkt_control_header control; + struct pkt_control_cipher cipher; + unsigned char key[AES_MAX_KEY_SIZE]; +}; + +/* + * struct sl3516_ce_dev - main container for all this driver information + * @base: base address + * @clks: clocks used + * @reset: pointer to reset controller + * @dev: the platform device + * @engine: ptr to the crypto/crypto_engine + * @complete: completion for the current task on this flow + * @status: set to 1 by interrupt if task is done + * @dtx: base DMA address for TX descriptors + * @tx base address of TX descriptors + * @drx: base DMA address for RX descriptors + * @rx base address of RX descriptors + * @ctx current used TX descriptor + * @crx current used RX descriptor + * @trng hw_random structure for RNG + * @hwrng_stat_req number of HWRNG requests + * @hwrng_stat_bytes total number of bytes generated by RNG + * @stat_irq number of IRQ handled by CE + * @stat_irq_tx number of TX IRQ handled by CE + * @stat_irq_rx number of RX IRQ handled by CE + * @stat_req number of requests handled by CE + * @fallbak_sg_count_tx number of fallback due to destination SG count + * @fallbak_sg_count_rx number of fallback due to source SG count + * @fallbak_not_same_len number of fallback due to difference in SG length + * @dbgfs_dir: Debugfs dentry for statistic directory + * @dbgfs_stats: Debugfs dentry for statistic counters + */ +struct sl3516_ce_dev { + void __iomem *base; + struct clk *clks; + struct reset_control *reset; + struct device *dev; + struct crypto_engine *engine; + struct completion complete; + int status; + dma_addr_t dtx; + struct descriptor *tx; + dma_addr_t drx; + struct descriptor *rx; + int ctx; + int crx; + struct hwrng trng; + unsigned long hwrng_stat_req; + unsigned long hwrng_stat_bytes; + unsigned long stat_irq; + unsigned long stat_irq_tx; + unsigned long stat_irq_rx; + unsigned long stat_req; + unsigned long fallback_sg_count_tx; + unsigned long fallback_sg_count_rx; + unsigned long fallback_not_same_len; + unsigned long fallback_mod16; + unsigned long fallback_align16; +#ifdef CONFIG_CRYPTO_DEV_SL3516_DEBUG + struct dentry *dbgfs_dir; + struct dentry *dbgfs_stats; +#endif + void *pctrl; + dma_addr_t dctrl; +}; + +struct sginfo { + u32 addr; + u32 len; +}; + +/* + * struct sl3516_ce_cipher_req_ctx - context for a skcipher request + * @t_src: list of mapped SGs with their size + * @t_dst: list of mapped SGs with their size + * @op_dir: direction (encrypt vs decrypt) for this request + * @pctrllen: the length of the ctrl packet + * @tqflag: the TQflag to set in data packet + * @h pointer to the pkt_control_cipher header + * @nr_sgs: number of source SG + * @nr_sgd: number of destination SG + * @fallback_req: request struct for invoking the fallback skcipher TFM + */ +struct sl3516_ce_cipher_req_ctx { + struct sginfo t_src[MAXDESC]; + struct sginfo t_dst[MAXDESC]; + u32 op_dir; + unsigned int pctrllen; + u32 tqflag; + struct pkt_control_cipher *h; + int nr_sgs; + int nr_sgd; + struct skcipher_request fallback_req; // keep at the end +}; + +/* + * struct sl3516_ce_cipher_tfm_ctx - context for a skcipher TFM + * @enginectx: crypto_engine used by this TFM + * @key: pointer to key data + * @keylen: len of the key + * @ce: pointer to the private data of driver handling this TFM + * @fallback_tfm: pointer to the fallback TFM + * + * enginectx must be the first element + */ +struct sl3516_ce_cipher_tfm_ctx { + struct crypto_engine_ctx enginectx; + u32 *key; + u32 keylen; + struct sl3516_ce_dev *ce; + struct crypto_skcipher *fallback_tfm; +}; + +/* + * struct sl3516_ce_alg_template - crypto_alg template + * @type: the CRYPTO_ALG_TYPE for this template + * @mode: value to be used in control packet for this algorithm + * @ce: pointer to the sl3516_ce_dev structure associated with + * this template + * @alg: one of sub struct must be used + * @stat_req: number of request done on this template + * @stat_fb: number of request which has fallbacked + * @stat_bytes: total data size done by this template + */ +struct sl3516_ce_alg_template { + u32 type; + u32 mode; + struct sl3516_ce_dev *ce; + union { + struct skcipher_alg skcipher; + } alg; + unsigned long stat_req; + unsigned long stat_fb; + unsigned long stat_bytes; +}; + +int sl3516_ce_enqueue(struct crypto_async_request *areq, u32 type); + +int sl3516_ce_aes_setkey(struct crypto_skcipher *tfm, const u8 *key, + unsigned int keylen); +int sl3516_ce_cipher_init(struct crypto_tfm *tfm); +void sl3516_ce_cipher_exit(struct crypto_tfm *tfm); +int sl3516_ce_skdecrypt(struct skcipher_request *areq); +int sl3516_ce_skencrypt(struct skcipher_request *areq); + +int sl3516_ce_run_task(struct sl3516_ce_dev *ce, + struct sl3516_ce_cipher_req_ctx *rctx, const char *name); + +int sl3516_ce_rng_register(struct sl3516_ce_dev *ce); +void sl3516_ce_rng_unregister(struct sl3516_ce_dev *ce); -- cgit v1.2.3