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/adf_gen4_pfvf.c | 147 ++++++++++++++++++++++++++ 1 file changed, 147 insertions(+) create mode 100644 drivers/crypto/qat/qat_common/adf_gen4_pfvf.c (limited to 'drivers/crypto/qat/qat_common/adf_gen4_pfvf.c') diff --git a/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c b/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c new file mode 100644 index 000000000..8e8efe93f --- /dev/null +++ b/drivers/crypto/qat/qat_common/adf_gen4_pfvf.c @@ -0,0 +1,147 @@ +// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) +/* Copyright(c) 2021 Intel Corporation */ +#include +#include +#include +#include "adf_accel_devices.h" +#include "adf_common_drv.h" +#include "adf_gen4_pfvf.h" +#include "adf_pfvf_pf_proto.h" +#include "adf_pfvf_utils.h" + +#define ADF_4XXX_PF2VM_OFFSET(i) (0x40B010 + ((i) * 0x20)) +#define ADF_4XXX_VM2PF_OFFSET(i) (0x40B014 + ((i) * 0x20)) + +/* VF2PF interrupt source registers */ +#define ADF_4XXX_VM2PF_SOU 0x41A180 +#define ADF_4XXX_VM2PF_MSK 0x41A1C0 +#define ADF_GEN4_VF_MSK 0xFFFF + +#define ADF_PFVF_GEN4_MSGTYPE_SHIFT 2 +#define ADF_PFVF_GEN4_MSGTYPE_MASK 0x3F +#define ADF_PFVF_GEN4_MSGDATA_SHIFT 8 +#define ADF_PFVF_GEN4_MSGDATA_MASK 0xFFFFFF + +static const struct pfvf_csr_format csr_gen4_fmt = { + { ADF_PFVF_GEN4_MSGTYPE_SHIFT, ADF_PFVF_GEN4_MSGTYPE_MASK }, + { ADF_PFVF_GEN4_MSGDATA_SHIFT, ADF_PFVF_GEN4_MSGDATA_MASK }, +}; + +static u32 adf_gen4_pf_get_pf2vf_offset(u32 i) +{ + return ADF_4XXX_PF2VM_OFFSET(i); +} + +static u32 adf_gen4_pf_get_vf2pf_offset(u32 i) +{ + return ADF_4XXX_VM2PF_OFFSET(i); +} + +static void adf_gen4_enable_vf2pf_interrupts(void __iomem *pmisc_addr, u32 vf_mask) +{ + u32 val; + + val = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_MSK) & ~vf_mask; + ADF_CSR_WR(pmisc_addr, ADF_4XXX_VM2PF_MSK, val); +} + +static void adf_gen4_disable_all_vf2pf_interrupts(void __iomem *pmisc_addr) +{ + ADF_CSR_WR(pmisc_addr, ADF_4XXX_VM2PF_MSK, ADF_GEN4_VF_MSK); +} + +static u32 adf_gen4_disable_pending_vf2pf_interrupts(void __iomem *pmisc_addr) +{ + u32 sources, disabled, pending; + + /* Get the interrupt sources triggered by VFs */ + sources = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_SOU); + if (!sources) + return 0; + + /* Get the already disabled interrupts */ + disabled = ADF_CSR_RD(pmisc_addr, ADF_4XXX_VM2PF_MSK); + + pending = sources & ~disabled; + if (!pending) + return 0; + + /* Due to HW limitations, when disabling the interrupts, we can't + * just disable the requested sources, as this would lead to missed + * interrupts if VM2PF_SOU changes just before writing to VM2PF_MSK. + * To work around it, disable all and re-enable only the sources that + * are not in vf_mask and were not already disabled. Re-enabling will + * trigger a new interrupt for the sources that have changed in the + * meantime, if any. + */ + ADF_CSR_WR(pmisc_addr, ADF_4XXX_VM2PF_MSK, ADF_GEN4_VF_MSK); + ADF_CSR_WR(pmisc_addr, ADF_4XXX_VM2PF_MSK, disabled | sources); + + /* Return the sources of the (new) interrupt(s) */ + return pending; +} + +static int adf_gen4_pfvf_send(struct adf_accel_dev *accel_dev, + struct pfvf_message msg, u32 pfvf_offset, + struct mutex *csr_lock) +{ + void __iomem *pmisc_addr = adf_get_pmisc_base(accel_dev); + u32 csr_val; + int ret; + + csr_val = adf_pfvf_csr_msg_of(accel_dev, msg, &csr_gen4_fmt); + if (unlikely(!csr_val)) + return -EINVAL; + + mutex_lock(csr_lock); + + ADF_CSR_WR(pmisc_addr, pfvf_offset, csr_val | ADF_PFVF_INT); + + /* Wait for confirmation from remote that it received the message */ + ret = read_poll_timeout(ADF_CSR_RD, csr_val, !(csr_val & ADF_PFVF_INT), + ADF_PFVF_MSG_ACK_DELAY_US, + ADF_PFVF_MSG_ACK_MAX_DELAY_US, + true, pmisc_addr, pfvf_offset); + if (ret < 0) + dev_dbg(&GET_DEV(accel_dev), "ACK not received from remote\n"); + + mutex_unlock(csr_lock); + return ret; +} + +static struct pfvf_message adf_gen4_pfvf_recv(struct adf_accel_dev *accel_dev, + u32 pfvf_offset, u8 compat_ver) +{ + void __iomem *pmisc_addr = adf_get_pmisc_base(accel_dev); + struct pfvf_message msg = { 0 }; + u32 csr_val; + + /* Read message from the CSR */ + csr_val = ADF_CSR_RD(pmisc_addr, pfvf_offset); + if (!(csr_val & ADF_PFVF_INT)) { + dev_info(&GET_DEV(accel_dev), + "Spurious PFVF interrupt, msg 0x%.8x. Ignored\n", csr_val); + return msg; + } + + /* We can now acknowledge the message reception by clearing the + * interrupt bit + */ + ADF_CSR_WR(pmisc_addr, pfvf_offset, csr_val & ~ADF_PFVF_INT); + + /* Return the pfvf_message format */ + return adf_pfvf_message_of(accel_dev, csr_val, &csr_gen4_fmt); +} + +void adf_gen4_init_pf_pfvf_ops(struct adf_pfvf_ops *pfvf_ops) +{ + pfvf_ops->enable_comms = adf_enable_pf2vf_comms; + pfvf_ops->get_pf2vf_offset = adf_gen4_pf_get_pf2vf_offset; + pfvf_ops->get_vf2pf_offset = adf_gen4_pf_get_vf2pf_offset; + pfvf_ops->enable_vf2pf_interrupts = adf_gen4_enable_vf2pf_interrupts; + pfvf_ops->disable_all_vf2pf_interrupts = adf_gen4_disable_all_vf2pf_interrupts; + pfvf_ops->disable_pending_vf2pf_interrupts = adf_gen4_disable_pending_vf2pf_interrupts; + pfvf_ops->send_msg = adf_gen4_pfvf_send; + pfvf_ops->recv_msg = adf_gen4_pfvf_recv; +} +EXPORT_SYMBOL_GPL(adf_gen4_init_pf_pfvf_ops); -- cgit v1.2.3