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/parisc/lasi.c | 234 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 234 insertions(+) create mode 100644 drivers/parisc/lasi.c (limited to 'drivers/parisc/lasi.c') diff --git a/drivers/parisc/lasi.c b/drivers/parisc/lasi.c new file mode 100644 index 000000000..6ef621adb --- /dev/null +++ b/drivers/parisc/lasi.c @@ -0,0 +1,234 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * LASI Device Driver + * + * (c) Copyright 1999 Red Hat Software + * Portions (c) Copyright 1999 The Puffin Group Inc. + * Portions (c) Copyright 1999 Hewlett-Packard + * + * by Alan Cox and + * Alex deVries + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "gsc.h" + + +#define LASI_VER 0xC008 /* LASI Version */ + +#define LASI_IO_CONF 0x7FFFE /* LASI primary configuration register */ +#define LASI_IO_CONF2 0x7FFFF /* LASI secondary configuration register */ + +static void lasi_choose_irq(struct parisc_device *dev, void *ctrl) +{ + int irq; + + switch (dev->id.sversion) { + case 0x74: irq = 7; break; /* Centronics */ + case 0x7B: irq = 13; break; /* Audio */ + case 0x81: irq = 14; break; /* Lasi itself */ + case 0x82: irq = 9; break; /* SCSI */ + case 0x83: irq = 20; break; /* Floppy */ + case 0x84: irq = 26; break; /* PS/2 Keyboard */ + case 0x87: irq = 18; break; /* ISDN */ + case 0x8A: irq = 8; break; /* LAN */ + case 0x8C: irq = 5; break; /* RS232 */ + case 0x8D: irq = (dev->hw_path == 13) ? 16 : 17; break; + /* Telephone */ + default: return; /* unknown */ + } + + gsc_asic_assign_irq(ctrl, irq, &dev->irq); +} + +static void __init +lasi_init_irq(struct gsc_asic *this_lasi) +{ + unsigned long lasi_base = this_lasi->hpa; + + /* Stop LASI barking for a bit */ + gsc_writel(0x00000000, lasi_base+OFFSET_IMR); + + /* clear pending interrupts */ + gsc_readl(lasi_base+OFFSET_IRR); + + /* We're not really convinced we want to reset the onboard + * devices. Firmware does it for us... + */ + + /* Resets */ + /* gsc_writel(0xFFFFFFFF, lasi_base+0x2000);*/ /* Parallel */ + if(pdc_add_valid(lasi_base+0x4004) == PDC_OK) + gsc_writel(0xFFFFFFFF, lasi_base+0x4004); /* Audio */ + /* gsc_writel(0xFFFFFFFF, lasi_base+0x5000);*/ /* Serial */ + /* gsc_writel(0xFFFFFFFF, lasi_base+0x6000);*/ /* SCSI */ + gsc_writel(0xFFFFFFFF, lasi_base+0x7000); /* LAN */ + gsc_writel(0xFFFFFFFF, lasi_base+0x8000); /* Keyboard */ + gsc_writel(0xFFFFFFFF, lasi_base+0xA000); /* FDC */ + + /* Ok we hit it on the head with a hammer, our Dog is now + ** comatose and muzzled. Devices will now unmask LASI + ** interrupts as they are registered as irq's in the LASI range. + */ + /* XXX: I thought it was `awks that got `it on the `ead with an + * `ammer. -- willy + */ +} + + +/* + ** lasi_led_init() + ** + ** lasi_led_init() initializes the LED controller on the LASI. + ** + ** Since Mirage and Electra machines use a different LED + ** address register, we need to check for these machines + ** explicitly. + */ + +#ifndef CONFIG_CHASSIS_LCD_LED + +#define lasi_led_init(x) /* nothing */ + +#else + +static void __init lasi_led_init(unsigned long lasi_hpa) +{ + unsigned long datareg; + + switch (CPU_HVERSION) { + /* Gecko machines have only one single LED, which can be permanently + turned on by writing a zero into the power control register. */ + case 0x600: /* Gecko (712/60) */ + case 0x601: /* Gecko (712/80) */ + case 0x602: /* Gecko (712/100) */ + case 0x603: /* Anole 64 (743/64) */ + case 0x604: /* Anole 100 (743/100) */ + case 0x605: /* Gecko (712/120) */ + datareg = lasi_hpa + 0x0000C000; + gsc_writeb(0, datareg); + return; /* no need to register the LED interrupt-function */ + + /* Mirage and Electra machines need special offsets */ + case 0x60A: /* Mirage Jr (715/64) */ + case 0x60B: /* Mirage 100 */ + case 0x60C: /* Mirage 100+ */ + case 0x60D: /* Electra 100 */ + case 0x60E: /* Electra 120 */ + datareg = lasi_hpa - 0x00020000; + break; + + default: + datareg = lasi_hpa + 0x0000C000; + break; + } + + register_led_driver(DISPLAY_MODEL_LASI, LED_CMD_REG_NONE, datareg); +} +#endif + +/* + * lasi_power_off + * + * Function for lasi to turn off the power. This is accomplished by setting a + * 1 to PWR_ON_L in the Power Control Register + * + */ + +static unsigned long lasi_power_off_hpa __read_mostly; + +static void lasi_power_off(void) +{ + unsigned long datareg; + + /* calculate addr of the Power Control Register */ + datareg = lasi_power_off_hpa + 0x0000C000; + + /* Power down the machine */ + gsc_writel(0x02, datareg); +} + +static int __init lasi_init_chip(struct parisc_device *dev) +{ + extern void (*chassis_power_off)(void); + struct gsc_asic *lasi; + int ret; + + lasi = kzalloc(sizeof(*lasi), GFP_KERNEL); + if (!lasi) + return -ENOMEM; + + lasi->name = "Lasi"; + lasi->hpa = dev->hpa.start; + + /* Check the 4-bit (yes, only 4) version register */ + lasi->version = gsc_readl(lasi->hpa + LASI_VER) & 0xf; + printk(KERN_INFO "%s version %d at 0x%lx found.\n", + lasi->name, lasi->version, lasi->hpa); + + /* initialize the chassis LEDs really early */ + lasi_led_init(lasi->hpa); + + /* Stop LASI barking for a bit */ + lasi_init_irq(lasi); + + /* the IRQ lasi should use */ + dev->irq = gsc_alloc_irq(&lasi->gsc_irq); + if (dev->irq < 0) { + printk(KERN_ERR "%s(): cannot get GSC irq\n", + __func__); + kfree(lasi); + return -EBUSY; + } + + lasi->eim = ((u32) lasi->gsc_irq.txn_addr) | lasi->gsc_irq.txn_data; + + ret = request_irq(lasi->gsc_irq.irq, gsc_asic_intr, 0, "lasi", lasi); + if (ret < 0) { + kfree(lasi); + return ret; + } + + /* enable IRQ's for devices below LASI */ + gsc_writel(lasi->eim, lasi->hpa + OFFSET_IAR); + + /* Done init'ing, register this driver */ + ret = gsc_common_setup(dev, lasi); + if (ret) { + kfree(lasi); + return ret; + } + + gsc_fixup_irqs(dev, lasi, lasi_choose_irq); + + /* initialize the power off function */ + /* FIXME: Record the LASI HPA for the power off function. This should + * ensure that only the first LASI (the one controlling the power off) + * should set the HPA here */ + lasi_power_off_hpa = lasi->hpa; + chassis_power_off = lasi_power_off; + + return ret; +} + +static struct parisc_device_id lasi_tbl[] __initdata = { + { HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00081 }, + { 0, } +}; + +struct parisc_driver lasi_driver __refdata = { + .name = "lasi", + .id_table = lasi_tbl, + .probe = lasi_init_chip, +}; -- cgit v1.2.3