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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /Documentation/ABI/testing/sysfs-driver-habanalabs
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
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+What: /sys/class/habanalabs/hl<n>/armcp_kernel_ver
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Version of the Linux kernel running on the device's CPU.
+ Will be DEPRECATED in Linux kernel version 5.10, and be
+ replaced with cpucp_kernel_ver
+
+What: /sys/class/habanalabs/hl<n>/armcp_ver
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Version of the application running on the device's CPU
+ Will be DEPRECATED in Linux kernel version 5.10, and be
+ replaced with cpucp_ver
+
+What: /sys/class/habanalabs/hl<n>/clk_max_freq_mhz
+Date: Jun 2019
+KernelVersion: 5.7
+Contact: ogabbay@kernel.org
+Description: Allows the user to set the maximum clock frequency, in MHz.
+ The device clock might be set to lower value than the maximum.
+ The user should read the clk_cur_freq_mhz to see the actual
+ frequency value of the device clock. This property is valid
+ only for the Gaudi ASIC family
+
+What: /sys/class/habanalabs/hl<n>/clk_cur_freq_mhz
+Date: Jun 2019
+KernelVersion: 5.7
+Contact: ogabbay@kernel.org
+Description: Displays the current frequency, in MHz, of the device clock.
+ This property is valid only for the Gaudi ASIC family
+
+What: /sys/class/habanalabs/hl<n>/cpld_ver
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Version of the Device's CPLD F/W
+
+What: /sys/class/habanalabs/hl<n>/cpucp_kernel_ver
+Date: Oct 2020
+KernelVersion: 5.10
+Contact: ogabbay@kernel.org
+Description: Version of the Linux kernel running on the device's CPU
+
+What: /sys/class/habanalabs/hl<n>/cpucp_ver
+Date: Oct 2020
+KernelVersion: 5.10
+Contact: ogabbay@kernel.org
+Description: Version of the application running on the device's CPU
+
+What: /sys/class/habanalabs/hl<n>/device_type
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Displays the code name of the device according to its type.
+ The supported values are: "GOYA"
+
+What: /sys/class/habanalabs/hl<n>/eeprom
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: A binary file attribute that contains the contents of the
+ on-board EEPROM
+
+What: /sys/class/habanalabs/hl<n>/fuse_ver
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Displays the device's version from the eFuse
+
+What: /sys/class/habanalabs/hl<n>/fw_os_ver
+Date: Dec 2021
+KernelVersion: 5.18
+Contact: ogabbay@kernel.org
+Description: Version of the firmware OS running on the device's CPU
+
+What: /sys/class/habanalabs/hl<n>/hard_reset
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Interface to trigger a hard-reset operation for the device.
+ Hard-reset will reset ALL internal components of the device
+ except for the PCI interface and the internal PLLs
+
+What: /sys/class/habanalabs/hl<n>/hard_reset_cnt
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Displays how many times the device have undergone a hard-reset
+ operation since the driver was loaded
+
+What: /sys/class/habanalabs/hl<n>/high_pll
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Allows the user to set the maximum clock frequency for MME, TPC
+ and IC when the power management profile is set to "automatic".
+ This property is valid only for the Goya ASIC family
+
+What: /sys/class/habanalabs/hl<n>/ic_clk
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Allows the user to set the maximum clock frequency, in Hz, of
+ the Interconnect fabric. Writes to this parameter affect the
+ device only when the power management profile is set to "manual"
+ mode. The device IC clock might be set to lower value than the
+ maximum. The user should read the ic_clk_curr to see the actual
+ frequency value of the IC. This property is valid only for the
+ Goya ASIC family
+
+What: /sys/class/habanalabs/hl<n>/ic_clk_curr
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Displays the current clock frequency, in Hz, of the Interconnect
+ fabric. This property is valid only for the Goya ASIC family
+
+What: /sys/class/habanalabs/hl<n>/infineon_ver
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Version of the Device's power supply F/W code. Relevant only to GOYA and GAUDI
+
+What: /sys/class/habanalabs/hl<n>/max_power
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Allows the user to set the maximum power consumption of the
+ device in milliwatts.
+
+What: /sys/class/habanalabs/hl<n>/mme_clk
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Allows the user to set the maximum clock frequency, in Hz, of
+ the MME compute engine. Writes to this parameter affect the
+ device only when the power management profile is set to "manual"
+ mode. The device MME clock might be set to lower value than the
+ maximum. The user should read the mme_clk_curr to see the actual
+ frequency value of the MME. This property is valid only for the
+ Goya ASIC family
+
+What: /sys/class/habanalabs/hl<n>/mme_clk_curr
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Displays the current clock frequency, in Hz, of the MME compute
+ engine. This property is valid only for the Goya ASIC family
+
+What: /sys/class/habanalabs/hl<n>/pci_addr
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Displays the PCI address of the device. This is needed so the
+ user would be able to open a device based on its PCI address
+
+What: /sys/class/habanalabs/hl<n>/pm_mng_profile
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Power management profile. Values are "auto", "manual". In "auto"
+ mode, the driver will set the maximum clock frequency to a high
+ value when a user-space process opens the device's file (unless
+ it was already opened by another process). The driver will set
+ the max clock frequency to a low value when there are no user
+ processes that are opened on the device's file. In "manual"
+ mode, the user sets the maximum clock frequency by writing to
+ ic_clk, mme_clk and tpc_clk. This property is valid only for
+ the Goya ASIC family
+
+What: /sys/class/habanalabs/hl<n>/preboot_btl_ver
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Version of the device's preboot F/W code
+
+What: /sys/class/habanalabs/hl<n>/security_enabled
+Date: Oct 2022
+KernelVersion: 6.1
+Contact: obitton@habana.ai
+Description: Displays the device's security status
+
+What: /sys/class/habanalabs/hl<n>/soft_reset
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Interface to trigger a soft-reset operation for the device.
+ Soft-reset will reset only the compute and DMA engines of the
+ device
+
+What: /sys/class/habanalabs/hl<n>/soft_reset_cnt
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Displays how many times the device have undergone a soft-reset
+ operation since the driver was loaded
+
+What: /sys/class/habanalabs/hl<n>/status
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Status of the card: "Operational", "Malfunction", "In reset".
+
+What: /sys/class/habanalabs/hl<n>/thermal_ver
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Version of the Device's thermal daemon
+
+What: /sys/class/habanalabs/hl<n>/tpc_clk
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Allows the user to set the maximum clock frequency, in Hz, of
+ the TPC compute engines. Writes to this parameter affect the
+ device only when the power management profile is set to "manual"
+ mode. The device TPC clock might be set to lower value than the
+ maximum. The user should read the tpc_clk_curr to see the actual
+ frequency value of the TPC. This property is valid only for
+ Goya ASIC family
+
+What: /sys/class/habanalabs/hl<n>/tpc_clk_curr
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Displays the current clock frequency, in Hz, of the TPC compute
+ engines. This property is valid only for the Goya ASIC family
+
+What: /sys/class/habanalabs/hl<n>/uboot_ver
+Date: Jan 2019
+KernelVersion: 5.1
+Contact: ogabbay@kernel.org
+Description: Version of the u-boot running on the device's CPU
+
+What: /sys/class/habanalabs/hl<n>/vrm_ver
+Date: Jan 2022
+KernelVersion: 5.17
+Contact: ogabbay@kernel.org
+Description: Version of the Device's Voltage Regulator Monitor F/W code. N/A to GOYA and GAUDI