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/marvell/octeontx/otx_cptpf_mbox.c | 253 +++++++++++++++++++++++ 1 file changed, 253 insertions(+) create mode 100644 drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c (limited to 'drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c') diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c b/drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c new file mode 100644 index 000000000..a9e3de658 --- /dev/null +++ b/drivers/crypto/marvell/octeontx/otx_cptpf_mbox.c @@ -0,0 +1,253 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Marvell OcteonTX CPT driver + * + * Copyright (C) 2019 Marvell International Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include "otx_cpt_common.h" +#include "otx_cptpf.h" + +static char *get_mbox_opcode_str(int msg_opcode) +{ + char *str = "Unknown"; + + switch (msg_opcode) { + case OTX_CPT_MSG_VF_UP: + str = "UP"; + break; + + case OTX_CPT_MSG_VF_DOWN: + str = "DOWN"; + break; + + case OTX_CPT_MSG_READY: + str = "READY"; + break; + + case OTX_CPT_MSG_QLEN: + str = "QLEN"; + break; + + case OTX_CPT_MSG_QBIND_GRP: + str = "QBIND_GRP"; + break; + + case OTX_CPT_MSG_VQ_PRIORITY: + str = "VQ_PRIORITY"; + break; + + case OTX_CPT_MSG_PF_TYPE: + str = "PF_TYPE"; + break; + + case OTX_CPT_MSG_ACK: + str = "ACK"; + break; + + case OTX_CPT_MSG_NACK: + str = "NACK"; + break; + } + + return str; +} + +static void dump_mbox_msg(struct otx_cpt_mbox *mbox_msg, int vf_id) +{ + char raw_data_str[OTX_CPT_MAX_MBOX_DATA_STR_SIZE]; + + hex_dump_to_buffer(mbox_msg, sizeof(struct otx_cpt_mbox), 16, 8, + raw_data_str, OTX_CPT_MAX_MBOX_DATA_STR_SIZE, false); + if (vf_id >= 0) + pr_debug("MBOX opcode %s received from VF%d raw_data %s\n", + get_mbox_opcode_str(mbox_msg->msg), vf_id, + raw_data_str); + else + pr_debug("MBOX opcode %s received from PF raw_data %s\n", + get_mbox_opcode_str(mbox_msg->msg), raw_data_str); +} + +static void otx_cpt_send_msg_to_vf(struct otx_cpt_device *cpt, int vf, + struct otx_cpt_mbox *mbx) +{ + /* Writing mbox(0) causes interrupt */ + writeq(mbx->data, cpt->reg_base + OTX_CPT_PF_VFX_MBOXX(vf, 1)); + writeq(mbx->msg, cpt->reg_base + OTX_CPT_PF_VFX_MBOXX(vf, 0)); +} + +/* + * ACKs VF's mailbox message + * @vf: VF to which ACK to be sent + */ +static void otx_cpt_mbox_send_ack(struct otx_cpt_device *cpt, int vf, + struct otx_cpt_mbox *mbx) +{ + mbx->data = 0ull; + mbx->msg = OTX_CPT_MSG_ACK; + otx_cpt_send_msg_to_vf(cpt, vf, mbx); +} + +/* NACKs VF's mailbox message that PF is not able to complete the action */ +static void otx_cptpf_mbox_send_nack(struct otx_cpt_device *cpt, int vf, + struct otx_cpt_mbox *mbx) +{ + mbx->data = 0ull; + mbx->msg = OTX_CPT_MSG_NACK; + otx_cpt_send_msg_to_vf(cpt, vf, mbx); +} + +static void otx_cpt_clear_mbox_intr(struct otx_cpt_device *cpt, u32 vf) +{ + /* W1C for the VF */ + writeq(1ull << vf, cpt->reg_base + OTX_CPT_PF_MBOX_INTX(0)); +} + +/* + * Configure QLEN/Chunk sizes for VF + */ +static void otx_cpt_cfg_qlen_for_vf(struct otx_cpt_device *cpt, int vf, + u32 size) +{ + union otx_cptx_pf_qx_ctl pf_qx_ctl; + + pf_qx_ctl.u = readq(cpt->reg_base + OTX_CPT_PF_QX_CTL(vf)); + pf_qx_ctl.s.size = size; + pf_qx_ctl.s.cont_err = true; + writeq(pf_qx_ctl.u, cpt->reg_base + OTX_CPT_PF_QX_CTL(vf)); +} + +/* + * Configure VQ priority + */ +static void otx_cpt_cfg_vq_priority(struct otx_cpt_device *cpt, int vf, u32 pri) +{ + union otx_cptx_pf_qx_ctl pf_qx_ctl; + + pf_qx_ctl.u = readq(cpt->reg_base + OTX_CPT_PF_QX_CTL(vf)); + pf_qx_ctl.s.pri = pri; + writeq(pf_qx_ctl.u, cpt->reg_base + OTX_CPT_PF_QX_CTL(vf)); +} + +static int otx_cpt_bind_vq_to_grp(struct otx_cpt_device *cpt, u8 q, u8 grp) +{ + struct device *dev = &cpt->pdev->dev; + struct otx_cpt_eng_grp_info *eng_grp; + union otx_cptx_pf_qx_ctl pf_qx_ctl; + struct otx_cpt_ucode *ucode; + + if (q >= cpt->max_vfs) { + dev_err(dev, "Requested queue %d is > than maximum avail %d\n", + q, cpt->max_vfs); + return -EINVAL; + } + + if (grp >= OTX_CPT_MAX_ENGINE_GROUPS) { + dev_err(dev, "Requested group %d is > than maximum avail %d\n", + grp, OTX_CPT_MAX_ENGINE_GROUPS); + return -EINVAL; + } + + eng_grp = &cpt->eng_grps.grp[grp]; + if (!eng_grp->is_enabled) { + dev_err(dev, "Requested engine group %d is disabled\n", grp); + return -EINVAL; + } + + pf_qx_ctl.u = readq(cpt->reg_base + OTX_CPT_PF_QX_CTL(q)); + pf_qx_ctl.s.grp = grp; + writeq(pf_qx_ctl.u, cpt->reg_base + OTX_CPT_PF_QX_CTL(q)); + + if (eng_grp->mirror.is_ena) + ucode = &eng_grp->g->grp[eng_grp->mirror.idx].ucode[0]; + else + ucode = &eng_grp->ucode[0]; + + if (otx_cpt_uc_supports_eng_type(ucode, OTX_CPT_SE_TYPES)) + return OTX_CPT_SE_TYPES; + else if (otx_cpt_uc_supports_eng_type(ucode, OTX_CPT_AE_TYPES)) + return OTX_CPT_AE_TYPES; + else + return BAD_OTX_CPTVF_TYPE; +} + +/* Interrupt handler to handle mailbox messages from VFs */ +static void otx_cpt_handle_mbox_intr(struct otx_cpt_device *cpt, int vf) +{ + int vftype = 0; + struct otx_cpt_mbox mbx = {}; + struct device *dev = &cpt->pdev->dev; + /* + * MBOX[0] contains msg + * MBOX[1] contains data + */ + mbx.msg = readq(cpt->reg_base + OTX_CPT_PF_VFX_MBOXX(vf, 0)); + mbx.data = readq(cpt->reg_base + OTX_CPT_PF_VFX_MBOXX(vf, 1)); + + dump_mbox_msg(&mbx, vf); + + switch (mbx.msg) { + case OTX_CPT_MSG_VF_UP: + mbx.msg = OTX_CPT_MSG_VF_UP; + mbx.data = cpt->vfs_enabled; + otx_cpt_send_msg_to_vf(cpt, vf, &mbx); + break; + case OTX_CPT_MSG_READY: + mbx.msg = OTX_CPT_MSG_READY; + mbx.data = vf; + otx_cpt_send_msg_to_vf(cpt, vf, &mbx); + break; + case OTX_CPT_MSG_VF_DOWN: + /* First msg in VF teardown sequence */ + otx_cpt_mbox_send_ack(cpt, vf, &mbx); + break; + case OTX_CPT_MSG_QLEN: + otx_cpt_cfg_qlen_for_vf(cpt, vf, mbx.data); + otx_cpt_mbox_send_ack(cpt, vf, &mbx); + break; + case OTX_CPT_MSG_QBIND_GRP: + vftype = otx_cpt_bind_vq_to_grp(cpt, vf, (u8)mbx.data); + if ((vftype != OTX_CPT_AE_TYPES) && + (vftype != OTX_CPT_SE_TYPES)) { + dev_err(dev, "VF%d binding to eng group %llu failed\n", + vf, mbx.data); + otx_cptpf_mbox_send_nack(cpt, vf, &mbx); + } else { + mbx.msg = OTX_CPT_MSG_QBIND_GRP; + mbx.data = vftype; + otx_cpt_send_msg_to_vf(cpt, vf, &mbx); + } + break; + case OTX_CPT_MSG_PF_TYPE: + mbx.msg = OTX_CPT_MSG_PF_TYPE; + mbx.data = cpt->pf_type; + otx_cpt_send_msg_to_vf(cpt, vf, &mbx); + break; + case OTX_CPT_MSG_VQ_PRIORITY: + otx_cpt_cfg_vq_priority(cpt, vf, mbx.data); + otx_cpt_mbox_send_ack(cpt, vf, &mbx); + break; + default: + dev_err(&cpt->pdev->dev, "Invalid msg from VF%d, msg 0x%llx\n", + vf, mbx.msg); + break; + } +} + +void otx_cpt_mbox_intr_handler (struct otx_cpt_device *cpt, int mbx) +{ + u64 intr; + u8 vf; + + intr = readq(cpt->reg_base + OTX_CPT_PF_MBOX_INTX(0)); + pr_debug("PF interrupt mbox%d mask 0x%llx\n", mbx, intr); + for (vf = 0; vf < cpt->max_vfs; vf++) { + if (intr & (1ULL << vf)) { + otx_cpt_handle_mbox_intr(cpt, vf); + otx_cpt_clear_mbox_intr(cpt, vf); + } + } +} -- cgit v1.2.3