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/qat/qat_common/qat_bl.c | 410 +++++++++++++++++++++++++++++++++ 1 file changed, 410 insertions(+) create mode 100644 drivers/crypto/qat/qat_common/qat_bl.c (limited to 'drivers/crypto/qat/qat_common/qat_bl.c') diff --git a/drivers/crypto/qat/qat_common/qat_bl.c b/drivers/crypto/qat/qat_common/qat_bl.c new file mode 100644 index 000000000..76baed0a7 --- /dev/null +++ b/drivers/crypto/qat/qat_common/qat_bl.c @@ -0,0 +1,410 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright(c) 2014 - 2022 Intel Corporation */ +#include +#include +#include +#include +#include +#include +#include "adf_accel_devices.h" +#include "qat_bl.h" +#include "qat_crypto.h" + +void qat_bl_free_bufl(struct adf_accel_dev *accel_dev, + struct qat_request_buffs *buf) +{ + struct device *dev = &GET_DEV(accel_dev); + struct qat_alg_buf_list *bl = buf->bl; + struct qat_alg_buf_list *blout = buf->blout; + dma_addr_t blp = buf->blp; + dma_addr_t blpout = buf->bloutp; + size_t sz = buf->sz; + size_t sz_out = buf->sz_out; + int bl_dma_dir; + int i; + + bl_dma_dir = blp != blpout ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL; + + for (i = 0; i < bl->num_bufs; i++) + dma_unmap_single(dev, bl->buffers[i].addr, + bl->buffers[i].len, bl_dma_dir); + + dma_unmap_single(dev, blp, sz, DMA_TO_DEVICE); + + if (!buf->sgl_src_valid) + kfree(bl); + + if (blp != blpout) { + for (i = 0; i < blout->num_mapped_bufs; i++) { + dma_unmap_single(dev, blout->buffers[i].addr, + blout->buffers[i].len, + DMA_FROM_DEVICE); + } + dma_unmap_single(dev, blpout, sz_out, DMA_TO_DEVICE); + + if (!buf->sgl_dst_valid) + kfree(blout); + } +} + +static int __qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev, + struct scatterlist *sgl, + struct scatterlist *sglout, + struct qat_request_buffs *buf, + dma_addr_t extra_dst_buff, + size_t sz_extra_dst_buff, + unsigned int sskip, + unsigned int dskip, + gfp_t flags) +{ + struct device *dev = &GET_DEV(accel_dev); + int i, sg_nctr = 0; + int n = sg_nents(sgl); + struct qat_alg_buf_list *bufl; + struct qat_alg_buf_list *buflout = NULL; + dma_addr_t blp = DMA_MAPPING_ERROR; + dma_addr_t bloutp = DMA_MAPPING_ERROR; + struct scatterlist *sg; + size_t sz_out, sz = struct_size(bufl, buffers, n); + int node = dev_to_node(&GET_DEV(accel_dev)); + unsigned int left; + int bufl_dma_dir; + + if (unlikely(!n)) + return -EINVAL; + + buf->sgl_src_valid = false; + buf->sgl_dst_valid = false; + + if (n > QAT_MAX_BUFF_DESC) { + bufl = kzalloc_node(sz, flags, node); + if (unlikely(!bufl)) + return -ENOMEM; + } else { + bufl = &buf->sgl_src.sgl_hdr; + memset(bufl, 0, sizeof(struct qat_alg_buf_list)); + buf->sgl_src_valid = true; + } + + bufl_dma_dir = sgl != sglout ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL; + + for (i = 0; i < n; i++) + bufl->buffers[i].addr = DMA_MAPPING_ERROR; + + left = sskip; + + for_each_sg(sgl, sg, n, i) { + int y = sg_nctr; + + if (!sg->length) + continue; + + if (left >= sg->length) { + left -= sg->length; + continue; + } + bufl->buffers[y].addr = dma_map_single(dev, sg_virt(sg) + left, + sg->length - left, + bufl_dma_dir); + bufl->buffers[y].len = sg->length; + if (unlikely(dma_mapping_error(dev, bufl->buffers[y].addr))) + goto err_in; + sg_nctr++; + if (left) { + bufl->buffers[y].len -= left; + left = 0; + } + } + bufl->num_bufs = sg_nctr; + blp = dma_map_single(dev, bufl, sz, DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev, blp))) + goto err_in; + buf->bl = bufl; + buf->blp = blp; + buf->sz = sz; + /* Handle out of place operation */ + if (sgl != sglout) { + struct qat_alg_buf *buffers; + int extra_buff = extra_dst_buff ? 1 : 0; + int n_sglout = sg_nents(sglout); + + n = n_sglout + extra_buff; + sz_out = struct_size(buflout, buffers, n); + left = dskip; + + sg_nctr = 0; + + if (n > QAT_MAX_BUFF_DESC) { + buflout = kzalloc_node(sz_out, flags, node); + if (unlikely(!buflout)) + goto err_in; + } else { + buflout = &buf->sgl_dst.sgl_hdr; + memset(buflout, 0, sizeof(struct qat_alg_buf_list)); + buf->sgl_dst_valid = true; + } + + buffers = buflout->buffers; + for (i = 0; i < n; i++) + buffers[i].addr = DMA_MAPPING_ERROR; + + for_each_sg(sglout, sg, n_sglout, i) { + int y = sg_nctr; + + if (!sg->length) + continue; + + if (left >= sg->length) { + left -= sg->length; + continue; + } + buffers[y].addr = dma_map_single(dev, sg_virt(sg) + left, + sg->length - left, + DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(dev, buffers[y].addr))) + goto err_out; + buffers[y].len = sg->length; + sg_nctr++; + if (left) { + buffers[y].len -= left; + left = 0; + } + } + if (extra_buff) { + buffers[sg_nctr].addr = extra_dst_buff; + buffers[sg_nctr].len = sz_extra_dst_buff; + } + + buflout->num_bufs = sg_nctr; + buflout->num_bufs += extra_buff; + buflout->num_mapped_bufs = sg_nctr; + bloutp = dma_map_single(dev, buflout, sz_out, DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev, bloutp))) + goto err_out; + buf->blout = buflout; + buf->bloutp = bloutp; + buf->sz_out = sz_out; + } else { + /* Otherwise set the src and dst to the same address */ + buf->bloutp = buf->blp; + buf->sz_out = 0; + } + return 0; + +err_out: + if (!dma_mapping_error(dev, bloutp)) + dma_unmap_single(dev, bloutp, sz_out, DMA_TO_DEVICE); + + n = sg_nents(sglout); + for (i = 0; i < n; i++) { + if (buflout->buffers[i].addr == extra_dst_buff) + break; + if (!dma_mapping_error(dev, buflout->buffers[i].addr)) + dma_unmap_single(dev, buflout->buffers[i].addr, + buflout->buffers[i].len, + DMA_FROM_DEVICE); + } + + if (!buf->sgl_dst_valid) + kfree(buflout); + +err_in: + if (!dma_mapping_error(dev, blp)) + dma_unmap_single(dev, blp, sz, DMA_TO_DEVICE); + + n = sg_nents(sgl); + for (i = 0; i < n; i++) + if (!dma_mapping_error(dev, bufl->buffers[i].addr)) + dma_unmap_single(dev, bufl->buffers[i].addr, + bufl->buffers[i].len, + bufl_dma_dir); + + if (!buf->sgl_src_valid) + kfree(bufl); + + dev_err(dev, "Failed to map buf for dma\n"); + return -ENOMEM; +} + +int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev, + struct scatterlist *sgl, + struct scatterlist *sglout, + struct qat_request_buffs *buf, + struct qat_sgl_to_bufl_params *params, + gfp_t flags) +{ + dma_addr_t extra_dst_buff = 0; + size_t sz_extra_dst_buff = 0; + unsigned int sskip = 0; + unsigned int dskip = 0; + + if (params) { + extra_dst_buff = params->extra_dst_buff; + sz_extra_dst_buff = params->sz_extra_dst_buff; + sskip = params->sskip; + dskip = params->dskip; + } + + return __qat_bl_sgl_to_bufl(accel_dev, sgl, sglout, buf, + extra_dst_buff, sz_extra_dst_buff, + sskip, dskip, flags); +} + +static void qat_bl_sgl_unmap(struct adf_accel_dev *accel_dev, + struct qat_alg_buf_list *bl) +{ + struct device *dev = &GET_DEV(accel_dev); + int n = bl->num_bufs; + int i; + + for (i = 0; i < n; i++) + if (!dma_mapping_error(dev, bl->buffers[i].addr)) + dma_unmap_single(dev, bl->buffers[i].addr, + bl->buffers[i].len, DMA_FROM_DEVICE); +} + +static int qat_bl_sgl_map(struct adf_accel_dev *accel_dev, + struct scatterlist *sgl, + struct qat_alg_buf_list **bl) +{ + struct device *dev = &GET_DEV(accel_dev); + struct qat_alg_buf_list *bufl; + int node = dev_to_node(dev); + struct scatterlist *sg; + int n, i, sg_nctr; + size_t sz; + + n = sg_nents(sgl); + sz = struct_size(bufl, buffers, n); + bufl = kzalloc_node(sz, GFP_KERNEL, node); + if (unlikely(!bufl)) + return -ENOMEM; + + for (i = 0; i < n; i++) + bufl->buffers[i].addr = DMA_MAPPING_ERROR; + + sg_nctr = 0; + for_each_sg(sgl, sg, n, i) { + int y = sg_nctr; + + if (!sg->length) + continue; + + bufl->buffers[y].addr = dma_map_single(dev, sg_virt(sg), + sg->length, + DMA_FROM_DEVICE); + bufl->buffers[y].len = sg->length; + if (unlikely(dma_mapping_error(dev, bufl->buffers[y].addr))) + goto err_map; + sg_nctr++; + } + bufl->num_bufs = sg_nctr; + bufl->num_mapped_bufs = sg_nctr; + + *bl = bufl; + + return 0; + +err_map: + for (i = 0; i < n; i++) + if (!dma_mapping_error(dev, bufl->buffers[i].addr)) + dma_unmap_single(dev, bufl->buffers[i].addr, + bufl->buffers[i].len, + DMA_FROM_DEVICE); + kfree(bufl); + *bl = NULL; + + return -ENOMEM; +} + +static void qat_bl_sgl_free_unmap(struct adf_accel_dev *accel_dev, + struct scatterlist *sgl, + struct qat_alg_buf_list *bl, + bool free_bl) +{ + if (bl) { + qat_bl_sgl_unmap(accel_dev, bl); + + if (free_bl) + kfree(bl); + } + if (sgl) + sgl_free(sgl); +} + +static int qat_bl_sgl_alloc_map(struct adf_accel_dev *accel_dev, + struct scatterlist **sgl, + struct qat_alg_buf_list **bl, + unsigned int dlen, + gfp_t gfp) +{ + struct scatterlist *dst; + int ret; + + dst = sgl_alloc(dlen, gfp, NULL); + if (!dst) { + dev_err(&GET_DEV(accel_dev), "sg_alloc failed\n"); + return -ENOMEM; + } + + ret = qat_bl_sgl_map(accel_dev, dst, bl); + if (ret) + goto err; + + *sgl = dst; + + return 0; + +err: + sgl_free(dst); + *sgl = NULL; + return ret; +} + +int qat_bl_realloc_map_new_dst(struct adf_accel_dev *accel_dev, + struct scatterlist **sg, + unsigned int dlen, + struct qat_request_buffs *qat_bufs, + gfp_t gfp) +{ + struct device *dev = &GET_DEV(accel_dev); + dma_addr_t new_blp = DMA_MAPPING_ERROR; + struct qat_alg_buf_list *new_bl; + struct scatterlist *new_sg; + size_t new_bl_size; + int ret; + + ret = qat_bl_sgl_alloc_map(accel_dev, &new_sg, &new_bl, dlen, gfp); + if (ret) + return ret; + + new_bl_size = struct_size(new_bl, buffers, new_bl->num_bufs); + + /* Map new firmware SGL descriptor */ + new_blp = dma_map_single(dev, new_bl, new_bl_size, DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev, new_blp))) + goto err; + + /* Unmap old firmware SGL descriptor */ + dma_unmap_single(dev, qat_bufs->bloutp, qat_bufs->sz_out, DMA_TO_DEVICE); + + /* Free and unmap old scatterlist */ + qat_bl_sgl_free_unmap(accel_dev, *sg, qat_bufs->blout, + !qat_bufs->sgl_dst_valid); + + qat_bufs->sgl_dst_valid = false; + qat_bufs->blout = new_bl; + qat_bufs->bloutp = new_blp; + qat_bufs->sz_out = new_bl_size; + + *sg = new_sg; + + return 0; +err: + qat_bl_sgl_free_unmap(accel_dev, new_sg, new_bl, true); + + if (!dma_mapping_error(dev, new_blp)) + dma_unmap_single(dev, new_blp, new_bl_size, DMA_TO_DEVICE); + + return -ENOMEM; +} -- cgit v1.2.3