mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-27 14:14:24 +08:00
169e77764a
Core
----
- Introduce XDP multi-buffer support, allowing the use of XDP with
jumbo frame MTUs and combination with Rx coalescing offloads (LRO).
- Speed up netns dismantling (5x) and lower the memory cost a little.
Remove unnecessary per-netns sockets. Scope some lists to a netns.
Cut down RCU syncing. Use batch methods. Allow netdev registration
to complete out of order.
- Support distinguishing timestamp types (ingress vs egress) and
maintaining them across packet scrubbing points (e.g. redirect).
- Continue the work of annotating packet drop reasons throughout
the stack.
- Switch netdev error counters from an atomic to dynamically
allocated per-CPU counters.
- Rework a few preempt_disable(), local_irq_save() and busy waiting
sections problematic on PREEMPT_RT.
- Extend the ref_tracker to allow catching use-after-free bugs.
BPF
---
- Introduce "packing allocator" for BPF JIT images. JITed code is
marked read only, and used to be allocated at page granularity.
Custom allocator allows for more efficient memory use, lower
iTLB pressure and prevents identity mapping huge pages from
getting split.
- Make use of BTF type annotations (e.g. __user, __percpu) to enforce
the correct probe read access method, add appropriate helpers.
- Convert the BPF preload to use light skeleton and drop
the user-mode-driver dependency.
- Allow XDP BPF_PROG_RUN test infra to send real packets, enabling
its use as a packet generator.
- Allow local storage memory to be allocated with GFP_KERNEL if called
from a hook allowed to sleep.
- Introduce fprobe (multi kprobe) to speed up mass attachment (arch
bits to come later).
- Add unstable conntrack lookup helpers for BPF by using the BPF
kfunc infra.
- Allow cgroup BPF progs to return custom errors to user space.
- Add support for AF_UNIX iterator batching.
- Allow iterator programs to use sleepable helpers.
- Support JIT of add, and, or, xor and xchg atomic ops on arm64.
- Add BTFGen support to bpftool which allows to use CO-RE in kernels
without BTF info.
- Large number of libbpf API improvements, cleanups and deprecations.
Protocols
---------
- Micro-optimize UDPv6 Tx, gaining up to 5% in test on dummy netdev.
- Adjust TSO packet sizes based on min_rtt, allowing very low latency
links (data centers) to always send full-sized TSO super-frames.
- Make IPv6 flow label changes (AKA hash rethink) more configurable,
via sysctl and setsockopt. Distinguish between server and client
behavior.
- VxLAN support to "collect metadata" devices to terminate only
configured VNIs. This is similar to VLAN filtering in the bridge.
- Support inserting IPv6 IOAM information to a fraction of frames.
- Add protocol attribute to IP addresses to allow identifying where
given address comes from (kernel-generated, DHCP etc.)
- Support setting socket and IPv6 options via cmsg on ping6 sockets.
- Reject mis-use of ECN bits in IP headers as part of DSCP/TOS.
Define dscp_t and stop taking ECN bits into account in fib-rules.
- Add support for locked bridge ports (for 802.1X).
- tun: support NAPI for packets received from batched XDP buffs,
doubling the performance in some scenarios.
- IPv6 extension header handling in Open vSwitch.
- Support IPv6 control message load balancing in bonding, prevent
neighbor solicitation and advertisement from using the wrong port.
Support NS/NA monitor selection similar to existing ARP monitor.
- SMC
- improve performance with TCP_CORK and sendfile()
- support auto-corking
- support TCP_NODELAY
- MCTP (Management Component Transport Protocol)
- add user space tag control interface
- I2C binding driver (as specified by DMTF DSP0237)
- Multi-BSSID beacon handling in AP mode for WiFi.
- Bluetooth:
- handle MSFT Monitor Device Event
- add MGMT Adv Monitor Device Found/Lost events
- Multi-Path TCP:
- add support for the SO_SNDTIMEO socket option
- lots of selftest cleanups and improvements
- Increase the max PDU size in CAN ISOTP to 64 kB.
Driver API
----------
- Add HW counters for SW netdevs, a mechanism for devices which
offload packet forwarding to report packet statistics back to
software interfaces such as tunnels.
- Select the default NIC queue count as a fraction of number of
physical CPU cores, instead of hard-coding to 8.
- Expose devlink instance locks to drivers. Allow device layer of
drivers to use that lock directly instead of creating their own
which always runs into ordering issues in devlink callbacks.
- Add header/data split indication to guide user space enabling
of TCP zero-copy Rx.
- Allow configuring completion queue event size.
- Refactor page_pool to enable fragmenting after allocation.
- Add allocation and page reuse statistics to page_pool.
- Improve Multiple Spanning Trees support in the bridge to allow
reuse of topologies across VLANs, saving HW resources in switches.
- DSA (Distributed Switch Architecture):
- replay and offload of host VLAN entries
- offload of static and local FDB entries on LAG interfaces
- FDB isolation and unicast filtering
New hardware / drivers
----------------------
- Ethernet:
- LAN937x T1 PHYs
- Davicom DM9051 SPI NIC driver
- Realtek RTL8367S, RTL8367RB-VB switch and MDIO
- Microchip ksz8563 switches
- Netronome NFP3800 SmartNICs
- Fungible SmartNICs
- MediaTek MT8195 switches
- WiFi:
- mt76: MediaTek mt7916
- mt76: MediaTek mt7921u USB adapters
- brcmfmac: Broadcom BCM43454/6
- Mobile:
- iosm: Intel M.2 7360 WWAN card
Drivers
-------
- Convert many drivers to the new phylink API built for split PCS
designs but also simplifying other cases.
- Intel Ethernet NICs:
- add TTY for GNSS module for E810T device
- improve AF_XDP performance
- GTP-C and GTP-U filter offload
- QinQ VLAN support
- Mellanox Ethernet NICs (mlx5):
- support xdp->data_meta
- multi-buffer XDP
- offload tc push_eth and pop_eth actions
- Netronome Ethernet NICs (nfp):
- flow-independent tc action hardware offload (police / meter)
- AF_XDP
- Other Ethernet NICs:
- at803x: fiber and SFP support
- xgmac: mdio: preamble suppression and custom MDC frequencies
- r8169: enable ASPM L1.2 if system vendor flags it as safe
- macb/gem: ZynqMP SGMII
- hns3: add TX push mode
- dpaa2-eth: software TSO
- lan743x: multi-queue, mdio, SGMII, PTP
- axienet: NAPI and GRO support
- Mellanox Ethernet switches (mlxsw):
- source and dest IP address rewrites
- RJ45 ports
- Marvell Ethernet switches (prestera):
- basic routing offload
- multi-chain TC ACL offload
- NXP embedded Ethernet switches (ocelot & felix):
- PTP over UDP with the ocelot-8021q DSA tagging protocol
- basic QoS classification on Felix DSA switch using dcbnl
- port mirroring for ocelot switches
- Microchip high-speed industrial Ethernet (sparx5):
- offloading of bridge port flooding flags
- PTP Hardware Clock
- Other embedded switches:
- lan966x: PTP Hardward Clock
- qca8k: mdio read/write operations via crafted Ethernet packets
- Qualcomm 802.11ax WiFi (ath11k):
- add LDPC FEC type and 802.11ax High Efficiency data in radiotap
- enable RX PPDU stats in monitor co-exist mode
- Intel WiFi (iwlwifi):
- UHB TAS enablement via BIOS
- band disablement via BIOS
- channel switch offload
- 32 Rx AMPDU sessions in newer devices
- MediaTek WiFi (mt76):
- background radar detection
- thermal management improvements on mt7915
- SAR support for more mt76 platforms
- MBSSID and 6 GHz band on mt7915
- RealTek WiFi:
- rtw89: AP mode
- rtw89: 160 MHz channels and 6 GHz band
- rtw89: hardware scan
- Bluetooth:
- mt7921s: wake on Bluetooth, SCO over I2S, wide-band-speed (WBS)
- Microchip CAN (mcp251xfd):
- multiple RX-FIFOs and runtime configurable RX/TX rings
- internal PLL, runtime PM handling simplification
- improve chip detection and error handling after wakeup
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"The sprinkling of SPI drivers is because we added a new one and Mark
sent us a SPI driver interface conversion pull request.
Core
----
- Introduce XDP multi-buffer support, allowing the use of XDP with
jumbo frame MTUs and combination with Rx coalescing offloads (LRO).
- Speed up netns dismantling (5x) and lower the memory cost a little.
Remove unnecessary per-netns sockets. Scope some lists to a netns.
Cut down RCU syncing. Use batch methods. Allow netdev registration
to complete out of order.
- Support distinguishing timestamp types (ingress vs egress) and
maintaining them across packet scrubbing points (e.g. redirect).
- Continue the work of annotating packet drop reasons throughout the
stack.
- Switch netdev error counters from an atomic to dynamically
allocated per-CPU counters.
- Rework a few preempt_disable(), local_irq_save() and busy waiting
sections problematic on PREEMPT_RT.
- Extend the ref_tracker to allow catching use-after-free bugs.
BPF
---
- Introduce "packing allocator" for BPF JIT images. JITed code is
marked read only, and used to be allocated at page granularity.
Custom allocator allows for more efficient memory use, lower iTLB
pressure and prevents identity mapping huge pages from getting
split.
- Make use of BTF type annotations (e.g. __user, __percpu) to enforce
the correct probe read access method, add appropriate helpers.
- Convert the BPF preload to use light skeleton and drop the
user-mode-driver dependency.
- Allow XDP BPF_PROG_RUN test infra to send real packets, enabling
its use as a packet generator.
- Allow local storage memory to be allocated with GFP_KERNEL if
called from a hook allowed to sleep.
- Introduce fprobe (multi kprobe) to speed up mass attachment (arch
bits to come later).
- Add unstable conntrack lookup helpers for BPF by using the BPF
kfunc infra.
- Allow cgroup BPF progs to return custom errors to user space.
- Add support for AF_UNIX iterator batching.
- Allow iterator programs to use sleepable helpers.
- Support JIT of add, and, or, xor and xchg atomic ops on arm64.
- Add BTFGen support to bpftool which allows to use CO-RE in kernels
without BTF info.
- Large number of libbpf API improvements, cleanups and deprecations.
Protocols
---------
- Micro-optimize UDPv6 Tx, gaining up to 5% in test on dummy netdev.
- Adjust TSO packet sizes based on min_rtt, allowing very low latency
links (data centers) to always send full-sized TSO super-frames.
- Make IPv6 flow label changes (AKA hash rethink) more configurable,
via sysctl and setsockopt. Distinguish between server and client
behavior.
- VxLAN support to "collect metadata" devices to terminate only
configured VNIs. This is similar to VLAN filtering in the bridge.
- Support inserting IPv6 IOAM information to a fraction of frames.
- Add protocol attribute to IP addresses to allow identifying where
given address comes from (kernel-generated, DHCP etc.)
- Support setting socket and IPv6 options via cmsg on ping6 sockets.
- Reject mis-use of ECN bits in IP headers as part of DSCP/TOS.
Define dscp_t and stop taking ECN bits into account in fib-rules.
- Add support for locked bridge ports (for 802.1X).
- tun: support NAPI for packets received from batched XDP buffs,
doubling the performance in some scenarios.
- IPv6 extension header handling in Open vSwitch.
- Support IPv6 control message load balancing in bonding, prevent
neighbor solicitation and advertisement from using the wrong port.
Support NS/NA monitor selection similar to existing ARP monitor.
- SMC
- improve performance with TCP_CORK and sendfile()
- support auto-corking
- support TCP_NODELAY
- MCTP (Management Component Transport Protocol)
- add user space tag control interface
- I2C binding driver (as specified by DMTF DSP0237)
- Multi-BSSID beacon handling in AP mode for WiFi.
- Bluetooth:
- handle MSFT Monitor Device Event
- add MGMT Adv Monitor Device Found/Lost events
- Multi-Path TCP:
- add support for the SO_SNDTIMEO socket option
- lots of selftest cleanups and improvements
- Increase the max PDU size in CAN ISOTP to 64 kB.
Driver API
----------
- Add HW counters for SW netdevs, a mechanism for devices which
offload packet forwarding to report packet statistics back to
software interfaces such as tunnels.
- Select the default NIC queue count as a fraction of number of
physical CPU cores, instead of hard-coding to 8.
- Expose devlink instance locks to drivers. Allow device layer of
drivers to use that lock directly instead of creating their own
which always runs into ordering issues in devlink callbacks.
- Add header/data split indication to guide user space enabling of
TCP zero-copy Rx.
- Allow configuring completion queue event size.
- Refactor page_pool to enable fragmenting after allocation.
- Add allocation and page reuse statistics to page_pool.
- Improve Multiple Spanning Trees support in the bridge to allow
reuse of topologies across VLANs, saving HW resources in switches.
- DSA (Distributed Switch Architecture):
- replay and offload of host VLAN entries
- offload of static and local FDB entries on LAG interfaces
- FDB isolation and unicast filtering
New hardware / drivers
----------------------
- Ethernet:
- LAN937x T1 PHYs
- Davicom DM9051 SPI NIC driver
- Realtek RTL8367S, RTL8367RB-VB switch and MDIO
- Microchip ksz8563 switches
- Netronome NFP3800 SmartNICs
- Fungible SmartNICs
- MediaTek MT8195 switches
- WiFi:
- mt76: MediaTek mt7916
- mt76: MediaTek mt7921u USB adapters
- brcmfmac: Broadcom BCM43454/6
- Mobile:
- iosm: Intel M.2 7360 WWAN card
Drivers
-------
- Convert many drivers to the new phylink API built for split PCS
designs but also simplifying other cases.
- Intel Ethernet NICs:
- add TTY for GNSS module for E810T device
- improve AF_XDP performance
- GTP-C and GTP-U filter offload
- QinQ VLAN support
- Mellanox Ethernet NICs (mlx5):
- support xdp->data_meta
- multi-buffer XDP
- offload tc push_eth and pop_eth actions
- Netronome Ethernet NICs (nfp):
- flow-independent tc action hardware offload (police / meter)
- AF_XDP
- Other Ethernet NICs:
- at803x: fiber and SFP support
- xgmac: mdio: preamble suppression and custom MDC frequencies
- r8169: enable ASPM L1.2 if system vendor flags it as safe
- macb/gem: ZynqMP SGMII
- hns3: add TX push mode
- dpaa2-eth: software TSO
- lan743x: multi-queue, mdio, SGMII, PTP
- axienet: NAPI and GRO support
- Mellanox Ethernet switches (mlxsw):
- source and dest IP address rewrites
- RJ45 ports
- Marvell Ethernet switches (prestera):
- basic routing offload
- multi-chain TC ACL offload
- NXP embedded Ethernet switches (ocelot & felix):
- PTP over UDP with the ocelot-8021q DSA tagging protocol
- basic QoS classification on Felix DSA switch using dcbnl
- port mirroring for ocelot switches
- Microchip high-speed industrial Ethernet (sparx5):
- offloading of bridge port flooding flags
- PTP Hardware Clock
- Other embedded switches:
- lan966x: PTP Hardward Clock
- qca8k: mdio read/write operations via crafted Ethernet packets
- Qualcomm 802.11ax WiFi (ath11k):
- add LDPC FEC type and 802.11ax High Efficiency data in radiotap
- enable RX PPDU stats in monitor co-exist mode
- Intel WiFi (iwlwifi):
- UHB TAS enablement via BIOS
- band disablement via BIOS
- channel switch offload
- 32 Rx AMPDU sessions in newer devices
- MediaTek WiFi (mt76):
- background radar detection
- thermal management improvements on mt7915
- SAR support for more mt76 platforms
- MBSSID and 6 GHz band on mt7915
- RealTek WiFi:
- rtw89: AP mode
- rtw89: 160 MHz channels and 6 GHz band
- rtw89: hardware scan
- Bluetooth:
- mt7921s: wake on Bluetooth, SCO over I2S, wide-band-speed (WBS)
- Microchip CAN (mcp251xfd):
- multiple RX-FIFOs and runtime configurable RX/TX rings
- internal PLL, runtime PM handling simplification
- improve chip detection and error handling after wakeup"
* tag 'net-next-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2521 commits)
llc: fix netdevice reference leaks in llc_ui_bind()
drivers: ethernet: cpsw: fix panic when interrupt coaleceing is set via ethtool
ice: don't allow to run ice_send_event_to_aux() in atomic ctx
ice: fix 'scheduling while atomic' on aux critical err interrupt
net/sched: fix incorrect vlan_push_eth dest field
net: bridge: mst: Restrict info size queries to bridge ports
net: marvell: prestera: add missing destroy_workqueue() in prestera_module_init()
drivers: net: xgene: Fix regression in CRC stripping
net: geneve: add missing netlink policy and size for IFLA_GENEVE_INNER_PROTO_INHERIT
net: dsa: fix missing host-filtered multicast addresses
net/mlx5e: Fix build warning, detected write beyond size of field
iwlwifi: mvm: Don't fail if PPAG isn't supported
selftests/bpf: Fix kprobe_multi test.
Revert "rethook: x86: Add rethook x86 implementation"
Revert "arm64: rethook: Add arm64 rethook implementation"
Revert "powerpc: Add rethook support"
Revert "ARM: rethook: Add rethook arm implementation"
netdevice: add missing dm_private kdoc
net: bridge: mst: prevent NULL deref in br_mst_info_size()
selftests: forwarding: Use same VRF for port and VLAN upper
...
273 lines
8.4 KiB
Plaintext
273 lines
8.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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menuconfig SAMPLES
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bool "Sample kernel code"
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help
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You can build and test sample kernel code here.
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if SAMPLES
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config SAMPLE_AUXDISPLAY
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bool "auxdisplay sample"
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depends on CC_CAN_LINK
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config SAMPLE_TRACE_EVENTS
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tristate "Build trace_events examples -- loadable modules only"
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depends on EVENT_TRACING && m
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help
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This builds the trace event example module.
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config SAMPLE_TRACE_CUSTOM_EVENTS
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tristate "Build custom trace event example -- loadable modules only"
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depends on EVENT_TRACING && m
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help
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This builds the custom trace event example module.
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config SAMPLE_TRACE_PRINTK
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tristate "Build trace_printk module - tests various trace_printk formats"
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depends on EVENT_TRACING && m
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help
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This builds a module that calls trace_printk() and can be used to
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test various trace_printk() calls from a module.
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config SAMPLE_FTRACE_DIRECT
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tristate "Build register_ftrace_direct() example"
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depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
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depends on HAVE_SAMPLE_FTRACE_DIRECT
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help
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This builds an ftrace direct function example
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that hooks to wake_up_process and prints the parameters.
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config SAMPLE_FTRACE_DIRECT_MULTI
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tristate "Build register_ftrace_direct_multi() example"
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depends on DYNAMIC_FTRACE_WITH_DIRECT_CALLS && m
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depends on HAVE_SAMPLE_FTRACE_DIRECT_MULTI
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help
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This builds an ftrace direct function example
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that hooks to wake_up_process and schedule, and prints
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the function addresses.
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config SAMPLE_TRACE_ARRAY
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tristate "Build sample module for kernel access to Ftrace instancess"
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depends on EVENT_TRACING && m
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help
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This builds a module that demonstrates the use of various APIs to
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access Ftrace instances from within the kernel.
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config SAMPLE_KOBJECT
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tristate "Build kobject examples"
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help
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This config option will allow you to build a number of
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different kobject sample modules showing how to use kobjects,
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ksets, and ktypes properly.
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If in doubt, say "N" here.
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config SAMPLE_KPROBES
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tristate "Build kprobes examples -- loadable modules only"
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depends on KPROBES && m
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help
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This build several kprobes example modules.
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config SAMPLE_KRETPROBES
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tristate "Build kretprobes example -- loadable modules only"
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default m
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depends on SAMPLE_KPROBES && KRETPROBES
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config SAMPLE_HW_BREAKPOINT
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tristate "Build kernel hardware breakpoint examples -- loadable module only"
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depends on HAVE_HW_BREAKPOINT && m
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help
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This builds kernel hardware breakpoint example modules.
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config SAMPLE_FPROBE
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tristate "Build fprobe examples -- loadable modules only"
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depends on FPROBE && m
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help
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This builds a fprobe example module. This module has an option 'symbol'.
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You can specify a probed symbol or symbols separated with ','.
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config SAMPLE_KFIFO
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tristate "Build kfifo examples -- loadable modules only"
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depends on m
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help
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This config option will allow you to build a number of
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different kfifo sample modules showing how to use the
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generic kfifo API.
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If in doubt, say "N" here.
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config SAMPLE_KDB
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tristate "Build kdb command example -- loadable modules only"
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depends on KGDB_KDB && m
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help
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Build an example of how to dynamically add the hello
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command to the kdb shell.
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config SAMPLE_QMI_CLIENT
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tristate "Build qmi client sample -- loadable modules only"
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depends on m
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depends on ARCH_QCOM
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depends on NET
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select QCOM_QMI_HELPERS
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help
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Build an QMI client sample driver, which demonstrates how to
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communicate with a remote QRTR service, using QMI encoded messages.
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config SAMPLE_RPMSG_CLIENT
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tristate "Build rpmsg client sample -- loadable modules only"
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depends on RPMSG && m
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help
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Build an rpmsg client sample driver, which demonstrates how
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to communicate with an AMP-configured remote processor over
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the rpmsg bus.
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config SAMPLE_LIVEPATCH
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tristate "Build live patching samples -- loadable modules only"
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depends on LIVEPATCH && m
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help
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Build sample live patch demonstrations.
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config SAMPLE_CONFIGFS
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tristate "Build configfs patching sample -- loadable modules only"
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depends on CONFIGFS_FS && m
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help
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Builds a sample configfs interface.
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config SAMPLE_CONNECTOR
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tristate "Build connector sample -- loadable modules only"
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depends on CONNECTOR && HEADERS_INSTALL && m
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help
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When enabled, this builds both a sample kernel module for
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the connector interface and a user space tool to communicate
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with it.
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See also Documentation/driver-api/connector.rst
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config SAMPLE_FANOTIFY_ERROR
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bool "Build fanotify error monitoring sample"
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depends on FANOTIFY && CC_CAN_LINK && HEADERS_INSTALL
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help
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When enabled, this builds an example code that uses the
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FAN_FS_ERROR fanotify mechanism to monitor filesystem
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errors.
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|
See also Documentation/admin-guide/filesystem-monitoring.rst.
|
|
|
|
config SAMPLE_HIDRAW
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|
bool "hidraw sample"
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|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
|
|
config SAMPLE_LANDLOCK
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|
bool "Landlock example"
|
|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
help
|
|
Build a simple Landlock sandbox manager able to start a process
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|
restricted by a user-defined filesystem access control policy.
|
|
|
|
config SAMPLE_PIDFD
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|
bool "pidfd sample"
|
|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
|
|
config SAMPLE_SECCOMP
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|
bool "Build seccomp sample code"
|
|
depends on SECCOMP_FILTER && CC_CAN_LINK && HEADERS_INSTALL
|
|
help
|
|
Build samples of seccomp filters using various methods of
|
|
BPF filter construction.
|
|
|
|
config SAMPLE_TIMER
|
|
bool "Timer sample"
|
|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
|
|
config SAMPLE_UHID
|
|
bool "UHID sample"
|
|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
help
|
|
Build UHID sample program.
|
|
|
|
config SAMPLE_VFIO_MDEV_MTTY
|
|
tristate "Build VFIO mtty example mediated device sample code -- loadable modules only"
|
|
depends on VFIO_MDEV && m
|
|
help
|
|
Build a virtual tty sample driver for use as a VFIO
|
|
mediated device
|
|
|
|
config SAMPLE_VFIO_MDEV_MDPY
|
|
tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
|
|
depends on VFIO_MDEV && m
|
|
help
|
|
Build a virtual display sample driver for use as a VFIO
|
|
mediated device. It is a simple framebuffer and supports
|
|
the region display interface (VFIO_GFX_PLANE_TYPE_REGION).
|
|
|
|
config SAMPLE_VFIO_MDEV_MDPY_FB
|
|
tristate "Build VFIO mdpy example guest fbdev driver -- loadable module only"
|
|
depends on FB && m
|
|
select FB_CFB_FILLRECT
|
|
select FB_CFB_COPYAREA
|
|
select FB_CFB_IMAGEBLIT
|
|
help
|
|
Guest fbdev driver for the virtual display sample driver.
|
|
|
|
config SAMPLE_VFIO_MDEV_MBOCHS
|
|
tristate "Build VFIO mdpy example mediated device sample code -- loadable modules only"
|
|
depends on VFIO_MDEV && m
|
|
select DMA_SHARED_BUFFER
|
|
help
|
|
Build a virtual display sample driver for use as a VFIO
|
|
mediated device. It supports the region display interface
|
|
(VFIO_GFX_PLANE_TYPE_DMABUF).
|
|
Emulate enough of qemu stdvga to make bochs-drm.ko happy.
|
|
That is basically the vram memory bar and the bochs dispi
|
|
interface vbe registers in the mmio register bar.
|
|
Specifically it does *not* include any legacy vga stuff.
|
|
Device looks a lot like "qemu -device secondary-vga".
|
|
|
|
config SAMPLE_ANDROID_BINDERFS
|
|
bool "Build Android binderfs example"
|
|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
help
|
|
Builds a sample program to illustrate the use of the Android binderfs
|
|
filesystem.
|
|
|
|
config SAMPLE_VFS
|
|
bool "Build example programs that use new VFS system calls"
|
|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
help
|
|
Build example userspace programs that use new VFS system calls such
|
|
as mount API and statx(). Note that this is restricted to the x86
|
|
arch whilst it accesses system calls that aren't yet in all arches.
|
|
|
|
config SAMPLE_INTEL_MEI
|
|
bool "Build example program working with intel mei driver"
|
|
depends on INTEL_MEI
|
|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
help
|
|
Build a sample program to work with mei device.
|
|
|
|
config SAMPLE_WATCHDOG
|
|
bool "watchdog sample"
|
|
depends on CC_CAN_LINK
|
|
|
|
config SAMPLE_WATCH_QUEUE
|
|
bool "Build example watch_queue notification API consumer"
|
|
depends on CC_CAN_LINK && HEADERS_INSTALL
|
|
help
|
|
Build example userspace program to use the new mount_notify(),
|
|
sb_notify() syscalls and the KEYCTL_WATCH_KEY keyctl() function.
|
|
|
|
config SAMPLE_CORESIGHT_SYSCFG
|
|
tristate "Build example loadable module for CoreSight config"
|
|
depends on CORESIGHT && m
|
|
help
|
|
Build an example loadable module that adds new CoreSight features
|
|
and configuration using the CoreSight system configuration API.
|
|
This demonstrates how a user may create their own CoreSight
|
|
configurations and easily load them into the system at runtime.
|
|
|
|
endif # SAMPLES
|
|
|
|
config HAVE_SAMPLE_FTRACE_DIRECT
|
|
bool
|
|
|
|
config HAVE_SAMPLE_FTRACE_DIRECT_MULTI
|
|
bool
|