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/rockchip/rk3288_crypto_skcipher.c | 591 +++++++++++++++++++++++ 1 file changed, 591 insertions(+) create mode 100644 drivers/crypto/rockchip/rk3288_crypto_skcipher.c (limited to 'drivers/crypto/rockchip/rk3288_crypto_skcipher.c') diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c new file mode 100644 index 000000000..590694575 --- /dev/null +++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c @@ -0,0 +1,591 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Crypto acceleration support for Rockchip RK3288 + * + * Copyright (c) 2015, Fuzhou Rockchip Electronics Co., Ltd + * + * Author: Zain Wang + * + * Some ideas are from marvell-cesa.c and s5p-sss.c driver. + */ +#include +#include +#include "rk3288_crypto.h" + +#define RK_CRYPTO_DEC BIT(0) + +static int rk_cipher_need_fallback(struct skcipher_request *req) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher); + struct scatterlist *sgs, *sgd; + unsigned int stodo, dtodo, len; + unsigned int bs = crypto_skcipher_blocksize(tfm); + + if (!req->cryptlen) + return true; + + len = req->cryptlen; + sgs = req->src; + sgd = req->dst; + while (sgs && sgd) { + if (!IS_ALIGNED(sgs->offset, sizeof(u32))) { + algt->stat_fb_align++; + return true; + } + if (!IS_ALIGNED(sgd->offset, sizeof(u32))) { + algt->stat_fb_align++; + return true; + } + stodo = min(len, sgs->length); + if (stodo % bs) { + algt->stat_fb_len++; + return true; + } + dtodo = min(len, sgd->length); + if (dtodo % bs) { + algt->stat_fb_len++; + return true; + } + if (stodo != dtodo) { + algt->stat_fb_sgdiff++; + return true; + } + len -= stodo; + sgs = sg_next(sgs); + sgd = sg_next(sgd); + } + return false; +} + +static int rk_cipher_fallback(struct skcipher_request *areq) +{ + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq); + struct rk_cipher_ctx *op = crypto_skcipher_ctx(tfm); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(areq); + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher); + int err; + + algt->stat_fb++; + + skcipher_request_set_tfm(&rctx->fallback_req, op->fallback_tfm); + skcipher_request_set_callback(&rctx->fallback_req, areq->base.flags, + areq->base.complete, areq->base.data); + skcipher_request_set_crypt(&rctx->fallback_req, areq->src, areq->dst, + areq->cryptlen, areq->iv); + if (rctx->mode & RK_CRYPTO_DEC) + err = crypto_skcipher_decrypt(&rctx->fallback_req); + else + err = crypto_skcipher_encrypt(&rctx->fallback_req); + return err; +} + +static int rk_cipher_handle_req(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + struct rk_crypto_info *rkc; + struct crypto_engine *engine; + + if (rk_cipher_need_fallback(req)) + return rk_cipher_fallback(req); + + rkc = get_rk_crypto(); + + engine = rkc->engine; + rctx->dev = rkc; + + return crypto_transfer_skcipher_request_to_engine(engine, req); +} + +static int rk_aes_setkey(struct crypto_skcipher *cipher, + const u8 *key, unsigned int keylen) +{ + struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher); + struct rk_cipher_ctx *ctx = crypto_tfm_ctx(tfm); + + if (keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_192 && + keylen != AES_KEYSIZE_256) + return -EINVAL; + ctx->keylen = keylen; + memcpy(ctx->key, key, keylen); + + return crypto_skcipher_setkey(ctx->fallback_tfm, key, keylen); +} + +static int rk_des_setkey(struct crypto_skcipher *cipher, + const u8 *key, unsigned int keylen) +{ + struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher); + int err; + + err = verify_skcipher_des_key(cipher, key); + if (err) + return err; + + ctx->keylen = keylen; + memcpy(ctx->key, key, keylen); + + return crypto_skcipher_setkey(ctx->fallback_tfm, key, keylen); +} + +static int rk_tdes_setkey(struct crypto_skcipher *cipher, + const u8 *key, unsigned int keylen) +{ + struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher); + int err; + + err = verify_skcipher_des3_key(cipher, key); + if (err) + return err; + + ctx->keylen = keylen; + memcpy(ctx->key, key, keylen); + + return crypto_skcipher_setkey(ctx->fallback_tfm, key, keylen); +} + +static int rk_aes_ecb_encrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_AES_ECB_MODE; + return rk_cipher_handle_req(req); +} + +static int rk_aes_ecb_decrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_AES_ECB_MODE | RK_CRYPTO_DEC; + return rk_cipher_handle_req(req); +} + +static int rk_aes_cbc_encrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_AES_CBC_MODE; + return rk_cipher_handle_req(req); +} + +static int rk_aes_cbc_decrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_AES_CBC_MODE | RK_CRYPTO_DEC; + return rk_cipher_handle_req(req); +} + +static int rk_des_ecb_encrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = 0; + return rk_cipher_handle_req(req); +} + +static int rk_des_ecb_decrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_DEC; + return rk_cipher_handle_req(req); +} + +static int rk_des_cbc_encrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC; + return rk_cipher_handle_req(req); +} + +static int rk_des_cbc_decrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC | RK_CRYPTO_DEC; + return rk_cipher_handle_req(req); +} + +static int rk_des3_ede_ecb_encrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_TDES_SELECT; + return rk_cipher_handle_req(req); +} + +static int rk_des3_ede_ecb_decrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_DEC; + return rk_cipher_handle_req(req); +} + +static int rk_des3_ede_cbc_encrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC; + return rk_cipher_handle_req(req); +} + +static int rk_des3_ede_cbc_decrypt(struct skcipher_request *req) +{ + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + + rctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC | + RK_CRYPTO_DEC; + return rk_cipher_handle_req(req); +} + +static void rk_cipher_hw_init(struct rk_crypto_info *dev, struct skcipher_request *req) +{ + struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req); + struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(req); + struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher); + u32 block, conf_reg = 0; + + block = crypto_tfm_alg_blocksize(tfm); + + if (block == DES_BLOCK_SIZE) { + rctx->mode |= RK_CRYPTO_TDES_FIFO_MODE | + RK_CRYPTO_TDES_BYTESWAP_KEY | + RK_CRYPTO_TDES_BYTESWAP_IV; + CRYPTO_WRITE(dev, RK_CRYPTO_TDES_CTRL, rctx->mode); + memcpy_toio(dev->reg + RK_CRYPTO_TDES_KEY1_0, ctx->key, ctx->keylen); + conf_reg = RK_CRYPTO_DESSEL; + } else { + rctx->mode |= RK_CRYPTO_AES_FIFO_MODE | + RK_CRYPTO_AES_KEY_CHANGE | + RK_CRYPTO_AES_BYTESWAP_KEY | + RK_CRYPTO_AES_BYTESWAP_IV; + if (ctx->keylen == AES_KEYSIZE_192) + rctx->mode |= RK_CRYPTO_AES_192BIT_key; + else if (ctx->keylen == AES_KEYSIZE_256) + rctx->mode |= RK_CRYPTO_AES_256BIT_key; + CRYPTO_WRITE(dev, RK_CRYPTO_AES_CTRL, rctx->mode); + memcpy_toio(dev->reg + RK_CRYPTO_AES_KEY_0, ctx->key, ctx->keylen); + } + conf_reg |= RK_CRYPTO_BYTESWAP_BTFIFO | + RK_CRYPTO_BYTESWAP_BRFIFO; + CRYPTO_WRITE(dev, RK_CRYPTO_CONF, conf_reg); + CRYPTO_WRITE(dev, RK_CRYPTO_INTENA, + RK_CRYPTO_BCDMA_ERR_ENA | RK_CRYPTO_BCDMA_DONE_ENA); +} + +static void crypto_dma_start(struct rk_crypto_info *dev, + struct scatterlist *sgs, + struct scatterlist *sgd, unsigned int todo) +{ + CRYPTO_WRITE(dev, RK_CRYPTO_BRDMAS, sg_dma_address(sgs)); + CRYPTO_WRITE(dev, RK_CRYPTO_BRDMAL, todo); + CRYPTO_WRITE(dev, RK_CRYPTO_BTDMAS, sg_dma_address(sgd)); + CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, RK_CRYPTO_BLOCK_START | + _SBF(RK_CRYPTO_BLOCK_START, 16)); +} + +static int rk_cipher_run(struct crypto_engine *engine, void *async_req) +{ + struct skcipher_request *areq = container_of(async_req, struct skcipher_request, base); + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq); + struct rk_cipher_rctx *rctx = skcipher_request_ctx(areq); + struct scatterlist *sgs, *sgd; + int err = 0; + int ivsize = crypto_skcipher_ivsize(tfm); + int offset; + u8 iv[AES_BLOCK_SIZE]; + u8 biv[AES_BLOCK_SIZE]; + u8 *ivtouse = areq->iv; + unsigned int len = areq->cryptlen; + unsigned int todo; + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher); + struct rk_crypto_info *rkc = rctx->dev; + + err = pm_runtime_resume_and_get(rkc->dev); + if (err) + return err; + + algt->stat_req++; + rkc->nreq++; + + ivsize = crypto_skcipher_ivsize(tfm); + if (areq->iv && crypto_skcipher_ivsize(tfm) > 0) { + if (rctx->mode & RK_CRYPTO_DEC) { + offset = areq->cryptlen - ivsize; + scatterwalk_map_and_copy(rctx->backup_iv, areq->src, + offset, ivsize, 0); + } + } + + sgs = areq->src; + sgd = areq->dst; + + while (sgs && sgd && len) { + if (!sgs->length) { + sgs = sg_next(sgs); + sgd = sg_next(sgd); + continue; + } + if (rctx->mode & RK_CRYPTO_DEC) { + /* we backup last block of source to be used as IV at next step */ + offset = sgs->length - ivsize; + scatterwalk_map_and_copy(biv, sgs, offset, ivsize, 0); + } + if (sgs == sgd) { + err = dma_map_sg(rkc->dev, sgs, 1, DMA_BIDIRECTIONAL); + if (err <= 0) { + err = -EINVAL; + goto theend_iv; + } + } else { + err = dma_map_sg(rkc->dev, sgs, 1, DMA_TO_DEVICE); + if (err <= 0) { + err = -EINVAL; + goto theend_iv; + } + err = dma_map_sg(rkc->dev, sgd, 1, DMA_FROM_DEVICE); + if (err <= 0) { + err = -EINVAL; + goto theend_sgs; + } + } + err = 0; + rk_cipher_hw_init(rkc, areq); + if (ivsize) { + if (ivsize == DES_BLOCK_SIZE) + memcpy_toio(rkc->reg + RK_CRYPTO_TDES_IV_0, ivtouse, ivsize); + else + memcpy_toio(rkc->reg + RK_CRYPTO_AES_IV_0, ivtouse, ivsize); + } + reinit_completion(&rkc->complete); + rkc->status = 0; + + todo = min(sg_dma_len(sgs), len); + len -= todo; + crypto_dma_start(rkc, sgs, sgd, todo / 4); + wait_for_completion_interruptible_timeout(&rkc->complete, + msecs_to_jiffies(2000)); + if (!rkc->status) { + dev_err(rkc->dev, "DMA timeout\n"); + err = -EFAULT; + goto theend; + } + if (sgs == sgd) { + dma_unmap_sg(rkc->dev, sgs, 1, DMA_BIDIRECTIONAL); + } else { + dma_unmap_sg(rkc->dev, sgs, 1, DMA_TO_DEVICE); + dma_unmap_sg(rkc->dev, sgd, 1, DMA_FROM_DEVICE); + } + if (rctx->mode & RK_CRYPTO_DEC) { + memcpy(iv, biv, ivsize); + ivtouse = iv; + } else { + offset = sgd->length - ivsize; + scatterwalk_map_and_copy(iv, sgd, offset, ivsize, 0); + ivtouse = iv; + } + sgs = sg_next(sgs); + sgd = sg_next(sgd); + } + + if (areq->iv && ivsize > 0) { + offset = areq->cryptlen - ivsize; + if (rctx->mode & RK_CRYPTO_DEC) { + memcpy(areq->iv, rctx->backup_iv, ivsize); + memzero_explicit(rctx->backup_iv, ivsize); + } else { + scatterwalk_map_and_copy(areq->iv, areq->dst, offset, + ivsize, 0); + } + } + +theend: + pm_runtime_put_autosuspend(rkc->dev); + + local_bh_disable(); + crypto_finalize_skcipher_request(engine, areq, err); + local_bh_enable(); + return 0; + +theend_sgs: + if (sgs == sgd) { + dma_unmap_sg(rkc->dev, sgs, 1, DMA_BIDIRECTIONAL); + } else { + dma_unmap_sg(rkc->dev, sgs, 1, DMA_TO_DEVICE); + dma_unmap_sg(rkc->dev, sgd, 1, DMA_FROM_DEVICE); + } +theend_iv: + return err; +} + +static int rk_cipher_tfm_init(struct crypto_skcipher *tfm) +{ + struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + const char *name = crypto_tfm_alg_name(&tfm->base); + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); + struct rk_crypto_tmp *algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher); + + ctx->fallback_tfm = crypto_alloc_skcipher(name, 0, CRYPTO_ALG_NEED_FALLBACK); + if (IS_ERR(ctx->fallback_tfm)) { + dev_err(algt->dev->dev, "ERROR: Cannot allocate fallback for %s %ld\n", + name, PTR_ERR(ctx->fallback_tfm)); + return PTR_ERR(ctx->fallback_tfm); + } + + tfm->reqsize = sizeof(struct rk_cipher_rctx) + + crypto_skcipher_reqsize(ctx->fallback_tfm); + + ctx->enginectx.op.do_one_request = rk_cipher_run; + + return 0; +} + +static void rk_cipher_tfm_exit(struct crypto_skcipher *tfm) +{ + struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + + memzero_explicit(ctx->key, ctx->keylen); + crypto_free_skcipher(ctx->fallback_tfm); +} + +struct rk_crypto_tmp rk_ecb_aes_alg = { + .type = CRYPTO_ALG_TYPE_SKCIPHER, + .alg.skcipher = { + .base.cra_name = "ecb(aes)", + .base.cra_driver_name = "ecb-aes-rk", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = AES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct rk_cipher_ctx), + .base.cra_alignmask = 0x0f, + .base.cra_module = THIS_MODULE, + + .init = rk_cipher_tfm_init, + .exit = rk_cipher_tfm_exit, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .setkey = rk_aes_setkey, + .encrypt = rk_aes_ecb_encrypt, + .decrypt = rk_aes_ecb_decrypt, + } +}; + +struct rk_crypto_tmp rk_cbc_aes_alg = { + .type = CRYPTO_ALG_TYPE_SKCIPHER, + .alg.skcipher = { + .base.cra_name = "cbc(aes)", + .base.cra_driver_name = "cbc-aes-rk", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = AES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct rk_cipher_ctx), + .base.cra_alignmask = 0x0f, + .base.cra_module = THIS_MODULE, + + .init = rk_cipher_tfm_init, + .exit = rk_cipher_tfm_exit, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .setkey = rk_aes_setkey, + .encrypt = rk_aes_cbc_encrypt, + .decrypt = rk_aes_cbc_decrypt, + } +}; + +struct rk_crypto_tmp rk_ecb_des_alg = { + .type = CRYPTO_ALG_TYPE_SKCIPHER, + .alg.skcipher = { + .base.cra_name = "ecb(des)", + .base.cra_driver_name = "ecb-des-rk", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = DES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct rk_cipher_ctx), + .base.cra_alignmask = 0x07, + .base.cra_module = THIS_MODULE, + + .init = rk_cipher_tfm_init, + .exit = rk_cipher_tfm_exit, + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .setkey = rk_des_setkey, + .encrypt = rk_des_ecb_encrypt, + .decrypt = rk_des_ecb_decrypt, + } +}; + +struct rk_crypto_tmp rk_cbc_des_alg = { + .type = CRYPTO_ALG_TYPE_SKCIPHER, + .alg.skcipher = { + .base.cra_name = "cbc(des)", + .base.cra_driver_name = "cbc-des-rk", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = DES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct rk_cipher_ctx), + .base.cra_alignmask = 0x07, + .base.cra_module = THIS_MODULE, + + .init = rk_cipher_tfm_init, + .exit = rk_cipher_tfm_exit, + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + .setkey = rk_des_setkey, + .encrypt = rk_des_cbc_encrypt, + .decrypt = rk_des_cbc_decrypt, + } +}; + +struct rk_crypto_tmp rk_ecb_des3_ede_alg = { + .type = CRYPTO_ALG_TYPE_SKCIPHER, + .alg.skcipher = { + .base.cra_name = "ecb(des3_ede)", + .base.cra_driver_name = "ecb-des3-ede-rk", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = DES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct rk_cipher_ctx), + .base.cra_alignmask = 0x07, + .base.cra_module = THIS_MODULE, + + .init = rk_cipher_tfm_init, + .exit = rk_cipher_tfm_exit, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .setkey = rk_tdes_setkey, + .encrypt = rk_des3_ede_ecb_encrypt, + .decrypt = rk_des3_ede_ecb_decrypt, + } +}; + +struct rk_crypto_tmp rk_cbc_des3_ede_alg = { + .type = CRYPTO_ALG_TYPE_SKCIPHER, + .alg.skcipher = { + .base.cra_name = "cbc(des3_ede)", + .base.cra_driver_name = "cbc-des3-ede-rk", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = DES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct rk_cipher_ctx), + .base.cra_alignmask = 0x07, + .base.cra_module = THIS_MODULE, + + .init = rk_cipher_tfm_init, + .exit = rk_cipher_tfm_exit, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + .setkey = rk_tdes_setkey, + .encrypt = rk_des3_ede_cbc_encrypt, + .decrypt = rk_des3_ede_cbc_decrypt, + } +}; -- cgit v1.2.3