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/edac/amd8131_edac.c | 358 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 358 insertions(+) create mode 100644 drivers/edac/amd8131_edac.c (limited to 'drivers/edac/amd8131_edac.c') diff --git a/drivers/edac/amd8131_edac.c b/drivers/edac/amd8131_edac.c new file mode 100644 index 000000000..169353710 --- /dev/null +++ b/drivers/edac/amd8131_edac.c @@ -0,0 +1,358 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * amd8131_edac.c, AMD8131 hypertransport chip EDAC kernel module + * + * Copyright (c) 2008 Wind River Systems, Inc. + * + * Authors: Cao Qingtao + * Benjamin Walsh + * Hu Yongqi + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "edac_module.h" +#include "amd8131_edac.h" + +#define AMD8131_EDAC_REVISION " Ver: 1.0.0" +#define AMD8131_EDAC_MOD_STR "amd8131_edac" + +/* Wrapper functions for accessing PCI configuration space */ +static void edac_pci_read_dword(struct pci_dev *dev, int reg, u32 *val32) +{ + int ret; + + ret = pci_read_config_dword(dev, reg, val32); + if (ret != 0) + printk(KERN_ERR AMD8131_EDAC_MOD_STR + " PCI Access Read Error at 0x%x\n", reg); +} + +static void edac_pci_write_dword(struct pci_dev *dev, int reg, u32 val32) +{ + int ret; + + ret = pci_write_config_dword(dev, reg, val32); + if (ret != 0) + printk(KERN_ERR AMD8131_EDAC_MOD_STR + " PCI Access Write Error at 0x%x\n", reg); +} + +/* Support up to two AMD8131 chipsets on a platform */ +static struct amd8131_dev_info amd8131_devices[] = { + { + .inst = NORTH_A, + .devfn = DEVFN_PCIX_BRIDGE_NORTH_A, + .ctl_name = "AMD8131_PCIX_NORTH_A", + }, + { + .inst = NORTH_B, + .devfn = DEVFN_PCIX_BRIDGE_NORTH_B, + .ctl_name = "AMD8131_PCIX_NORTH_B", + }, + { + .inst = SOUTH_A, + .devfn = DEVFN_PCIX_BRIDGE_SOUTH_A, + .ctl_name = "AMD8131_PCIX_SOUTH_A", + }, + { + .inst = SOUTH_B, + .devfn = DEVFN_PCIX_BRIDGE_SOUTH_B, + .ctl_name = "AMD8131_PCIX_SOUTH_B", + }, + {.inst = NO_BRIDGE,}, +}; + +static void amd8131_pcix_init(struct amd8131_dev_info *dev_info) +{ + u32 val32; + struct pci_dev *dev = dev_info->dev; + + /* First clear error detection flags */ + edac_pci_read_dword(dev, REG_MEM_LIM, &val32); + if (val32 & MEM_LIMIT_MASK) + edac_pci_write_dword(dev, REG_MEM_LIM, val32); + + /* Clear Discard Timer Timedout flag */ + edac_pci_read_dword(dev, REG_INT_CTLR, &val32); + if (val32 & INT_CTLR_DTS) + edac_pci_write_dword(dev, REG_INT_CTLR, val32); + + /* Clear CRC Error flag on link side A */ + edac_pci_read_dword(dev, REG_LNK_CTRL_A, &val32); + if (val32 & LNK_CTRL_CRCERR_A) + edac_pci_write_dword(dev, REG_LNK_CTRL_A, val32); + + /* Clear CRC Error flag on link side B */ + edac_pci_read_dword(dev, REG_LNK_CTRL_B, &val32); + if (val32 & LNK_CTRL_CRCERR_B) + edac_pci_write_dword(dev, REG_LNK_CTRL_B, val32); + + /* + * Then enable all error detections. + * + * Setup Discard Timer Sync Flood Enable, + * System Error Enable and Parity Error Enable. + */ + edac_pci_read_dword(dev, REG_INT_CTLR, &val32); + val32 |= INT_CTLR_PERR | INT_CTLR_SERR | INT_CTLR_DTSE; + edac_pci_write_dword(dev, REG_INT_CTLR, val32); + + /* Enable overall SERR Error detection */ + edac_pci_read_dword(dev, REG_STS_CMD, &val32); + val32 |= STS_CMD_SERREN; + edac_pci_write_dword(dev, REG_STS_CMD, val32); + + /* Setup CRC Flood Enable for link side A */ + edac_pci_read_dword(dev, REG_LNK_CTRL_A, &val32); + val32 |= LNK_CTRL_CRCFEN; + edac_pci_write_dword(dev, REG_LNK_CTRL_A, val32); + + /* Setup CRC Flood Enable for link side B */ + edac_pci_read_dword(dev, REG_LNK_CTRL_B, &val32); + val32 |= LNK_CTRL_CRCFEN; + edac_pci_write_dword(dev, REG_LNK_CTRL_B, val32); +} + +static void amd8131_pcix_exit(struct amd8131_dev_info *dev_info) +{ + u32 val32; + struct pci_dev *dev = dev_info->dev; + + /* Disable SERR, PERR and DTSE Error detection */ + edac_pci_read_dword(dev, REG_INT_CTLR, &val32); + val32 &= ~(INT_CTLR_PERR | INT_CTLR_SERR | INT_CTLR_DTSE); + edac_pci_write_dword(dev, REG_INT_CTLR, val32); + + /* Disable overall System Error detection */ + edac_pci_read_dword(dev, REG_STS_CMD, &val32); + val32 &= ~STS_CMD_SERREN; + edac_pci_write_dword(dev, REG_STS_CMD, val32); + + /* Disable CRC Sync Flood on link side A */ + edac_pci_read_dword(dev, REG_LNK_CTRL_A, &val32); + val32 &= ~LNK_CTRL_CRCFEN; + edac_pci_write_dword(dev, REG_LNK_CTRL_A, val32); + + /* Disable CRC Sync Flood on link side B */ + edac_pci_read_dword(dev, REG_LNK_CTRL_B, &val32); + val32 &= ~LNK_CTRL_CRCFEN; + edac_pci_write_dword(dev, REG_LNK_CTRL_B, val32); +} + +static void amd8131_pcix_check(struct edac_pci_ctl_info *edac_dev) +{ + struct amd8131_dev_info *dev_info = edac_dev->pvt_info; + struct pci_dev *dev = dev_info->dev; + u32 val32; + + /* Check PCI-X Bridge Memory Base-Limit Register for errors */ + edac_pci_read_dword(dev, REG_MEM_LIM, &val32); + if (val32 & MEM_LIMIT_MASK) { + printk(KERN_INFO "Error(s) in mem limit register " + "on %s bridge\n", dev_info->ctl_name); + printk(KERN_INFO "DPE: %d, RSE: %d, RMA: %d\n" + "RTA: %d, STA: %d, MDPE: %d\n", + val32 & MEM_LIMIT_DPE, + val32 & MEM_LIMIT_RSE, + val32 & MEM_LIMIT_RMA, + val32 & MEM_LIMIT_RTA, + val32 & MEM_LIMIT_STA, + val32 & MEM_LIMIT_MDPE); + + val32 |= MEM_LIMIT_MASK; + edac_pci_write_dword(dev, REG_MEM_LIM, val32); + + edac_pci_handle_npe(edac_dev, edac_dev->ctl_name); + } + + /* Check if Discard Timer timed out */ + edac_pci_read_dword(dev, REG_INT_CTLR, &val32); + if (val32 & INT_CTLR_DTS) { + printk(KERN_INFO "Error(s) in interrupt and control register " + "on %s bridge\n", dev_info->ctl_name); + printk(KERN_INFO "DTS: %d\n", val32 & INT_CTLR_DTS); + + val32 |= INT_CTLR_DTS; + edac_pci_write_dword(dev, REG_INT_CTLR, val32); + + edac_pci_handle_npe(edac_dev, edac_dev->ctl_name); + } + + /* Check if CRC error happens on link side A */ + edac_pci_read_dword(dev, REG_LNK_CTRL_A, &val32); + if (val32 & LNK_CTRL_CRCERR_A) { + printk(KERN_INFO "Error(s) in link conf and control register " + "on %s bridge\n", dev_info->ctl_name); + printk(KERN_INFO "CRCERR: %d\n", val32 & LNK_CTRL_CRCERR_A); + + val32 |= LNK_CTRL_CRCERR_A; + edac_pci_write_dword(dev, REG_LNK_CTRL_A, val32); + + edac_pci_handle_npe(edac_dev, edac_dev->ctl_name); + } + + /* Check if CRC error happens on link side B */ + edac_pci_read_dword(dev, REG_LNK_CTRL_B, &val32); + if (val32 & LNK_CTRL_CRCERR_B) { + printk(KERN_INFO "Error(s) in link conf and control register " + "on %s bridge\n", dev_info->ctl_name); + printk(KERN_INFO "CRCERR: %d\n", val32 & LNK_CTRL_CRCERR_B); + + val32 |= LNK_CTRL_CRCERR_B; + edac_pci_write_dword(dev, REG_LNK_CTRL_B, val32); + + edac_pci_handle_npe(edac_dev, edac_dev->ctl_name); + } +} + +static struct amd8131_info amd8131_chipset = { + .err_dev = PCI_DEVICE_ID_AMD_8131_APIC, + .devices = amd8131_devices, + .init = amd8131_pcix_init, + .exit = amd8131_pcix_exit, + .check = amd8131_pcix_check, +}; + +/* + * There are 4 PCIX Bridges on ATCA-6101 that share the same PCI Device ID, + * so amd8131_probe() would be called by kernel 4 times, with different + * address of pci_dev for each of them each time. + */ +static int amd8131_probe(struct pci_dev *dev, const struct pci_device_id *id) +{ + struct amd8131_dev_info *dev_info; + + for (dev_info = amd8131_chipset.devices; dev_info->inst != NO_BRIDGE; + dev_info++) + if (dev_info->devfn == dev->devfn) + break; + + if (dev_info->inst == NO_BRIDGE) /* should never happen */ + return -ENODEV; + + /* + * We can't call pci_get_device() as we are used to do because + * there are 4 of them but pci_dev_get() instead. + */ + dev_info->dev = pci_dev_get(dev); + + if (pci_enable_device(dev_info->dev)) { + pci_dev_put(dev_info->dev); + printk(KERN_ERR "failed to enable:" + "vendor %x, device %x, devfn %x, name %s\n", + PCI_VENDOR_ID_AMD, amd8131_chipset.err_dev, + dev_info->devfn, dev_info->ctl_name); + return -ENODEV; + } + + /* + * we do not allocate extra private structure for + * edac_pci_ctl_info, but make use of existing + * one instead. + */ + dev_info->edac_idx = edac_pci_alloc_index(); + dev_info->edac_dev = edac_pci_alloc_ctl_info(0, dev_info->ctl_name); + if (!dev_info->edac_dev) + return -ENOMEM; + + dev_info->edac_dev->pvt_info = dev_info; + dev_info->edac_dev->dev = &dev_info->dev->dev; + dev_info->edac_dev->mod_name = AMD8131_EDAC_MOD_STR; + dev_info->edac_dev->ctl_name = dev_info->ctl_name; + dev_info->edac_dev->dev_name = dev_name(&dev_info->dev->dev); + + if (edac_op_state == EDAC_OPSTATE_POLL) + dev_info->edac_dev->edac_check = amd8131_chipset.check; + + if (amd8131_chipset.init) + amd8131_chipset.init(dev_info); + + if (edac_pci_add_device(dev_info->edac_dev, dev_info->edac_idx) > 0) { + printk(KERN_ERR "failed edac_pci_add_device() for %s\n", + dev_info->ctl_name); + edac_pci_free_ctl_info(dev_info->edac_dev); + return -ENODEV; + } + + printk(KERN_INFO "added one device on AMD8131 " + "vendor %x, device %x, devfn %x, name %s\n", + PCI_VENDOR_ID_AMD, amd8131_chipset.err_dev, + dev_info->devfn, dev_info->ctl_name); + + return 0; +} + +static void amd8131_remove(struct pci_dev *dev) +{ + struct amd8131_dev_info *dev_info; + + for (dev_info = amd8131_chipset.devices; dev_info->inst != NO_BRIDGE; + dev_info++) + if (dev_info->devfn == dev->devfn) + break; + + if (dev_info->inst == NO_BRIDGE) /* should never happen */ + return; + + if (dev_info->edac_dev) { + edac_pci_del_device(dev_info->edac_dev->dev); + edac_pci_free_ctl_info(dev_info->edac_dev); + } + + if (amd8131_chipset.exit) + amd8131_chipset.exit(dev_info); + + pci_dev_put(dev_info->dev); +} + +static const struct pci_device_id amd8131_edac_pci_tbl[] = { + { + PCI_VEND_DEV(AMD, 8131_BRIDGE), + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .class = 0, + .class_mask = 0, + .driver_data = 0, + }, + { + 0, + } /* table is NULL-terminated */ +}; +MODULE_DEVICE_TABLE(pci, amd8131_edac_pci_tbl); + +static struct pci_driver amd8131_edac_driver = { + .name = AMD8131_EDAC_MOD_STR, + .probe = amd8131_probe, + .remove = amd8131_remove, + .id_table = amd8131_edac_pci_tbl, +}; + +static int __init amd8131_edac_init(void) +{ + printk(KERN_INFO "AMD8131 EDAC driver " AMD8131_EDAC_REVISION "\n"); + printk(KERN_INFO "\t(c) 2008 Wind River Systems, Inc.\n"); + + /* Only POLL mode supported so far */ + edac_op_state = EDAC_OPSTATE_POLL; + + return pci_register_driver(&amd8131_edac_driver); +} + +static void __exit amd8131_edac_exit(void) +{ + pci_unregister_driver(&amd8131_edac_driver); +} + +module_init(amd8131_edac_init); +module_exit(amd8131_edac_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Cao Qingtao \n"); +MODULE_DESCRIPTION("AMD8131 HyperTransport PCI-X Tunnel EDAC kernel module"); -- cgit v1.2.3