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/cavium/zip/zip_device.c | 202 +++++++++++++++++++++++++++++++++ 1 file changed, 202 insertions(+) create mode 100644 drivers/crypto/cavium/zip/zip_device.c (limited to 'drivers/crypto/cavium/zip/zip_device.c') diff --git a/drivers/crypto/cavium/zip/zip_device.c b/drivers/crypto/cavium/zip/zip_device.c new file mode 100644 index 000000000..f174ec29e --- /dev/null +++ b/drivers/crypto/cavium/zip/zip_device.c @@ -0,0 +1,202 @@ +/***********************license start************************************ + * Copyright (c) 2003-2017 Cavium, Inc. + * All rights reserved. + * + * License: one of 'Cavium License' or 'GNU General Public License Version 2' + * + * This file is provided under the terms of the Cavium License (see below) + * or under the terms of GNU General Public License, Version 2, as + * published by the Free Software Foundation. When using or redistributing + * this file, you may do so under either license. + * + * Cavium License: Redistribution and use in source and binary forms, with + * or without modification, are permitted provided that the following + * conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * * Neither the name of Cavium Inc. nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * This Software, including technical data, may be subject to U.S. export + * control laws, including the U.S. Export Administration Act and its + * associated regulations, and may be subject to export or import + * regulations in other countries. + * + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" + * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS + * OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH + * RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY + * REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT + * DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) + * WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A + * PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET + * ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE + * ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES + * WITH YOU. + ***********************license end**************************************/ + +#include "common.h" +#include "zip_deflate.h" + +/** + * zip_cmd_queue_consumed - Calculates the space consumed in the command queue. + * + * @zip_dev: Pointer to zip device structure + * @queue: Queue number + * + * Return: Bytes consumed in the command queue buffer. + */ +static inline u32 zip_cmd_queue_consumed(struct zip_device *zip_dev, int queue) +{ + return ((zip_dev->iq[queue].sw_head - zip_dev->iq[queue].sw_tail) * + sizeof(u64 *)); +} + +/** + * zip_load_instr - Submits the instruction into the ZIP command queue + * @instr: Pointer to the instruction to be submitted + * @zip_dev: Pointer to ZIP device structure to which the instruction is to + * be submitted + * + * This function copies the ZIP instruction to the command queue and rings the + * doorbell to notify the engine of the instruction submission. The command + * queue is maintained in a circular fashion. When there is space for exactly + * one instruction in the queue, next chunk pointer of the queue is made to + * point to the head of the queue, thus maintaining a circular queue. + * + * Return: Queue number to which the instruction was submitted + */ +u32 zip_load_instr(union zip_inst_s *instr, + struct zip_device *zip_dev) +{ + union zip_quex_doorbell dbell; + u32 queue = 0; + u32 consumed = 0; + u64 *ncb_ptr = NULL; + union zip_nptr_s ncp; + + /* + * Distribute the instructions between the enabled queues based on + * the CPU id. + */ + if (raw_smp_processor_id() % 2 == 0) + queue = 0; + else + queue = 1; + + zip_dbg("CPU Core: %d Queue number:%d", raw_smp_processor_id(), queue); + + /* Take cmd buffer lock */ + spin_lock(&zip_dev->iq[queue].lock); + + /* + * Command Queue implementation + * 1. If there is place for new instructions, push the cmd at sw_head. + * 2. If there is place for exactly one instruction, push the new cmd + * at the sw_head. Make sw_head point to the sw_tail to make it + * circular. Write sw_head's physical address to the "Next-Chunk + * Buffer Ptr" to make it cmd_hw_tail. + * 3. Ring the door bell. + */ + zip_dbg("sw_head : %lx", zip_dev->iq[queue].sw_head); + zip_dbg("sw_tail : %lx", zip_dev->iq[queue].sw_tail); + + consumed = zip_cmd_queue_consumed(zip_dev, queue); + /* Check if there is space to push just one cmd */ + if ((consumed + 128) == (ZIP_CMD_QBUF_SIZE - 8)) { + zip_dbg("Cmd queue space available for single command"); + /* Space for one cmd, pust it and make it circular queue */ + memcpy((u8 *)zip_dev->iq[queue].sw_head, (u8 *)instr, + sizeof(union zip_inst_s)); + zip_dev->iq[queue].sw_head += 16; /* 16 64_bit words = 128B */ + + /* Now, point the "Next-Chunk Buffer Ptr" to sw_head */ + ncb_ptr = zip_dev->iq[queue].sw_head; + + zip_dbg("ncb addr :0x%lx sw_head addr :0x%lx", + ncb_ptr, zip_dev->iq[queue].sw_head - 16); + + /* Using Circular command queue */ + zip_dev->iq[queue].sw_head = zip_dev->iq[queue].sw_tail; + /* Mark this buffer for free */ + zip_dev->iq[queue].free_flag = 1; + + /* Write new chunk buffer address at "Next-Chunk Buffer Ptr" */ + ncp.u_reg64 = 0ull; + ncp.s.addr = __pa(zip_dev->iq[queue].sw_head); + *ncb_ptr = ncp.u_reg64; + zip_dbg("*ncb_ptr :0x%lx sw_head[phys] :0x%lx", + *ncb_ptr, __pa(zip_dev->iq[queue].sw_head)); + + zip_dev->iq[queue].pend_cnt++; + + } else { + zip_dbg("Enough space is available for commands"); + /* Push this cmd to cmd queue buffer */ + memcpy((u8 *)zip_dev->iq[queue].sw_head, (u8 *)instr, + sizeof(union zip_inst_s)); + zip_dev->iq[queue].sw_head += 16; /* 16 64_bit words = 128B */ + + zip_dev->iq[queue].pend_cnt++; + } + zip_dbg("sw_head :0x%lx sw_tail :0x%lx hw_tail :0x%lx", + zip_dev->iq[queue].sw_head, zip_dev->iq[queue].sw_tail, + zip_dev->iq[queue].hw_tail); + + zip_dbg(" Pushed the new cmd : pend_cnt : %d", + zip_dev->iq[queue].pend_cnt); + + /* Ring the doorbell */ + dbell.u_reg64 = 0ull; + dbell.s.dbell_cnt = 1; + zip_reg_write(dbell.u_reg64, + (zip_dev->reg_base + ZIP_QUEX_DOORBELL(queue))); + + /* Unlock cmd buffer lock */ + spin_unlock(&zip_dev->iq[queue].lock); + + return queue; +} + +/** + * zip_update_cmd_bufs - Updates the queue statistics after posting the + * instruction + * @zip_dev: Pointer to zip device structure + * @queue: Queue number + */ +void zip_update_cmd_bufs(struct zip_device *zip_dev, u32 queue) +{ + /* Take cmd buffer lock */ + spin_lock(&zip_dev->iq[queue].lock); + + /* Check if the previous buffer can be freed */ + if (zip_dev->iq[queue].free_flag == 1) { + zip_dbg("Free flag. Free cmd buffer, adjust sw head and tail"); + /* Reset the free flag */ + zip_dev->iq[queue].free_flag = 0; + + /* Point the hw_tail to start of the new chunk buffer */ + zip_dev->iq[queue].hw_tail = zip_dev->iq[queue].sw_head; + } else { + zip_dbg("Free flag not set. increment hw tail"); + zip_dev->iq[queue].hw_tail += 16; /* 16 64_bit words = 128B */ + } + + zip_dev->iq[queue].done_cnt++; + zip_dev->iq[queue].pend_cnt--; + + zip_dbg("sw_head :0x%lx sw_tail :0x%lx hw_tail :0x%lx", + zip_dev->iq[queue].sw_head, zip_dev->iq[queue].sw_tail, + zip_dev->iq[queue].hw_tail); + zip_dbg(" Got CC : pend_cnt : %d\n", zip_dev->iq[queue].pend_cnt); + + spin_unlock(&zip_dev->iq[queue].lock); +} -- cgit v1.2.3