Commit Graph

508 Commits

Author SHA1 Message Date
Dave Airlie 53dbee4926 drm-misc-next for v5.18:
UAPI Changes:
 - Fix invalid IN_FORMATS blob when plane->format_mod_supported is NULL.
 
 Cross-subsystem Changes:
 - Assorted dt bindings updates.
 - Fix vga16fb vga checking on x86.
 - Fix extra semicolon in rwsem.h's _down_write_nest_lock.
 - Assorted small fixes to agp and fbdev drivers.
 - Fix oops in creating a udmabuf with 0 pages.
 - Hot-unplug firmware fb devices on forced removal
 - Reqquest memory region in simplefb and simpledrm, and don't make the ioresource as busy.
 
 Core Changes:
 - Mock a drm_plane in drm-plane-helper selftest.
 - Assorted bug fixes to device logging, dbi.
 - Use DP helper for sink count in mst.
 - Assorted documentation fixes.
 - Assorted small fixes.
 - Move DP headers to drm/dp, and add a drm dp helper module.
 - Move the buddy allocator from i915 to common drm.
 - Add simple pci and platform module init macros to remove a lot of boilerplate from some drivers.
 - Support microsoft extension for HMDs and specialized monitors.
 - Improve edid parser's deep color handling.
 - Add type 7 timing support to edid parser.
 - Add a weak backpointer to the ttm_bo from ttm_resource
 - Add 3 eDP panels.
 
 Driver Changes:
 - Add support for HDMI and JZ4780 to ingenic.
 - Add support for higher DP/eDP bitrates to nouveau.
 - Assorted driver fixes to tilcdc, vmwgfx, sn65dsi83, meson, stm, panfrost, v3d, gma500, vc4, virtio, mgag200, ast, radeon, amdgpu, nouveau, various bridge drivers.
 - Convert and revert exynos dsi support to bridge driver.
 - Add vcc supply regulator support for sn65dsi83.
 - More conversion of bridge/chipone-icn6211 to atomic.
 - Remove conflicting fb's from stm, and add support for new hw version.
 - Add device link in parade-ps8640 to fix suspend/resume.
 - Update Boe-tv110c9m init sequence.
 - Add wide screen support to AST2600.
 - Fix omapdrm implicit dma_buf fencing.
 - Add support for multiple overlay planes to vkms.
 - Convert bridge/anx7625 to atomic, add HDCP support,
   add eld support for audio, and fix HPD.
 - Add driver for ChromeOS privacy screen.
 - Handover display from firmware to vc4 more gracefully, and support nomodeset.
 - Add flexible and ycbcr pixel formats to stm/ltdc.
 - Convert exynos mipi dsi to atomic.
 - Add initial dual core group GPUs support to panfrost.
 - No longer add exclusive fence in amdgpu as shared fence.
 - Add CSC and full range supoprt to vc4.
 - Shutdown the display on system shutdown and unbind.
 - Add Multi-Inno Technology MI0700S4T-6 simple panel.
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Merge tag 'drm-misc-next-2022-01-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

[airlied: add two missing Kconfig]

drm-misc-next for v5.18:

UAPI Changes:
- Fix invalid IN_FORMATS blob when plane->format_mod_supported is NULL.

Cross-subsystem Changes:
- Assorted dt bindings updates.
- Fix vga16fb vga checking on x86.
- Fix extra semicolon in rwsem.h's _down_write_nest_lock.
- Assorted small fixes to agp and fbdev drivers.
- Fix oops in creating a udmabuf with 0 pages.
- Hot-unplug firmware fb devices on forced removal
- Reqquest memory region in simplefb and simpledrm, and don't make the ioresource as busy.

Core Changes:
- Mock a drm_plane in drm-plane-helper selftest.
- Assorted bug fixes to device logging, dbi.
- Use DP helper for sink count in mst.
- Assorted documentation fixes.
- Assorted small fixes.
- Move DP headers to drm/dp, and add a drm dp helper module.
- Move the buddy allocator from i915 to common drm.
- Add simple pci and platform module init macros to remove a lot of boilerplate from some drivers.
- Support microsoft extension for HMDs and specialized monitors.
- Improve edid parser's deep color handling.
- Add type 7 timing support to edid parser.
- Add a weak backpointer to the ttm_bo from ttm_resource
- Add 3 eDP panels.

Driver Changes:
- Add support for HDMI and JZ4780 to ingenic.
- Add support for higher DP/eDP bitrates to nouveau.
- Assorted driver fixes to tilcdc, vmwgfx, sn65dsi83, meson, stm, panfrost, v3d, gma500, vc4, virtio, mgag200, ast, radeon, amdgpu, nouveau, various bridge drivers.
- Convert and revert exynos dsi support to bridge driver.
- Add vcc supply regulator support for sn65dsi83.
- More conversion of bridge/chipone-icn6211 to atomic.
- Remove conflicting fb's from stm, and add support for new hw version.
- Add device link in parade-ps8640 to fix suspend/resume.
- Update Boe-tv110c9m init sequence.
- Add wide screen support to AST2600.
- Fix omapdrm implicit dma_buf fencing.
- Add support for multiple overlay planes to vkms.
- Convert bridge/anx7625 to atomic, add HDCP support,
  add eld support for audio, and fix HPD.
- Add driver for ChromeOS privacy screen.
- Handover display from firmware to vc4 more gracefully, and support nomodeset.
- Add flexible and ycbcr pixel formats to stm/ltdc.
- Convert exynos mipi dsi to atomic.
- Add initial dual core group GPUs support to panfrost.
- No longer add exclusive fence in amdgpu as shared fence.
- Add CSC and full range supoprt to vc4.
- Shutdown the display on system shutdown and unbind.
- Add Multi-Inno Technology MI0700S4T-6 simple panel.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/456a23c6-7324-7543-0c45-751f30ef83f7@linux.intel.com
2022-02-01 19:02:41 +10:00
Maxime Ripard 39feb6e726
firmware: raspberrypi: Add RPI_FIRMWARE_NOTIFY_DISPLAY_DONE
The RPI_FIRMWARE_NOTIFY_DISPLAY_DONE firmware call allows to tell the
firmware the kernel is in charge of the display now and the firmware can
free whatever resources it was using.

Acked-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20211215095117.176435-2-maxime@cerno.tech
2022-01-11 13:16:10 +01:00
Linus Torvalds 8efd0d9c31 Networking changes for 5.17.
Core
 ----
 
  - Defer freeing TCP skbs to the BH handler, whenever possible,
    or at least perform the freeing outside of the socket lock section
    to decrease cross-CPU allocator work and improve latency.
 
  - Add netdevice refcount tracking to locate sources of netdevice
    and net namespace refcount leaks.
 
  - Make Tx watchdog less intrusive - avoid pausing Tx and restarting
    all queues from a single CPU removing latency spikes.
 
  - Various small optimizations throughout the stack from Eric Dumazet.
 
  - Make netdev->dev_addr[] constant, force modifications to go via
    appropriate helpers to allow us to keep addresses in ordered data
    structures.
 
  - Replace unix_table_lock with per-hash locks, improving performance
    of bind() calls.
 
  - Extend skb drop tracepoint with a drop reason.
 
  - Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.
 
 BPF
 ---
 
  - New helpers:
    - bpf_find_vma(), find and inspect VMAs for profiling use cases
    - bpf_loop(), runtime-bounded loop helper trading some execution
      time for much faster (if at all converging) verification
    - bpf_strncmp(), improve performance, avoid compiler flakiness
    - bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
      for tracing programs, all inlined by the verifier
 
  - Support BPF relocations (CO-RE) in the kernel loader.
 
  - Further the support for BTF_TYPE_TAG annotations.
 
  - Allow access to local storage in sleepable helpers.
 
  - Convert verifier argument types to a composable form with different
    attributes which can be shared across types (ro, maybe-null).
 
  - Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
    creating new, extensible ones where missing and deprecating those
    to be removed.
 
 Protocols
 ---------
 
  - WiFi (mac80211/cfg80211):
    - notify user space about long "come back in N" AP responses,
      allow it to react to such temporary rejections
    - allow non-standard VHT MCS 10/11 rates
    - use coarse time in airtime fairness code to save CPU cycles
 
  - Bluetooth:
    - rework of HCI command execution serialization to use a common
      queue and work struct, and improve handling errors reported
      in the middle of a batch of commands
    - rework HCI event handling to use skb_pull_data, avoiding packet
      parsing pitfalls
    - support AOSP Bluetooth Quality Report
 
  - SMC:
    - support net namespaces, following the RDMA model
    - improve connection establishment latency by pre-clearing buffers
    - introduce TCP ULP for automatic redirection to SMC
 
  - Multi-Path TCP:
    - support ioctls: SIOCINQ, OUTQ, and OUTQNSD
    - support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
      IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
    - support cmsgs: TCP_INQ
    - improvements in the data scheduler (assigning data to subflows)
    - support fastclose option (quick shutdown of the full MPTCP
      connection, similar to TCP RST in regular TCP)
 
  - MCTP (Management Component Transport) over serial, as defined by
    DMTF spec DSP0253 - "MCTP Serial Transport Binding".
 
 Driver API
 ----------
 
  - Support timestamping on bond interfaces in active/passive mode.
 
  - Introduce generic phylink link mode validation for drivers which
    don't have any quirks and where MAC capability bits fully express
    what's supported. Allow PCS layer to participate in the validation.
    Convert a number of drivers.
 
  - Add support to set/get size of buffers on the Rx rings and size of
    the tx copybreak buffer via ethtool.
 
  - Support offloading TC actions as first-class citizens rather than
    only as attributes of filters, improve sharing and device resource
    utilization.
 
  - WiFi (mac80211/cfg80211):
    - support forwarding offload (ndo_fill_forward_path)
    - support for background radar detection hardware
    - SA Query Procedures offload on the AP side
 
 New hardware / drivers
 ----------------------
 
  - tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
    real-time requirements for isochronous communication with protocols
    like OPC UA Pub/Sub.
 
  - Qualcomm BAM-DMUX WWAN - driver for data channels of modems
    integrated into many older Qualcomm SoCs, e.g. MSM8916 or
    MSM8974 (qcom_bam_dmux).
 
  - Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch
    driver with support for bridging, VLANs and multicast forwarding
    (lan966x).
 
  - iwlmei driver for co-operating between Intel's WiFi driver and
    Intel's Active Management Technology (AMT) devices.
 
  - mse102x - Vertexcom MSE102x Homeplug GreenPHY chips
 
  - Bluetooth:
    - MediaTek MT7921 SDIO devices
    - Foxconn MT7922A
    - Realtek RTL8852AE
 
 Drivers
 -------
 
  - Significantly improve performance in the datapaths of:
    lan78xx, ax88179_178a, lantiq_xrx200, bnxt.
 
  - Intel Ethernet NICs:
    - igb: support PTP/time PEROUT and EXTTS SDP functions on
      82580/i354/i350 adapters
    - ixgbevf: new PF -> VF mailbox API which avoids the risk of
      mailbox corruption with ESXi
    - iavf: support configuration of VLAN features of finer granularity,
      stacked tags and filtering
    - ice: PTP support for new E822 devices with sub-ns precision
    - ice: support firmware activation without reboot
 
  - Mellanox Ethernet NICs (mlx5):
    - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
    - support TC forwarding when tunnel encap and decap happen between
      two ports of the same NIC
    - dynamically size and allow disabling various features to save
      resources for running in embedded / SmartNIC scenarios
 
  - Broadcom Ethernet NICs (bnxt):
    - use page frag allocator to improve Rx performance
    - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
 
  - Other Ethernet NICs:
    - amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support
 
  - Microsoft cloud/virtual NIC (mana):
    - add XDP support (PASS, DROP, TX)
 
  - Mellanox Ethernet switches (mlxsw):
    - initial support for Spectrum-4 ASICs
    - VxLAN with IPv6 underlay
 
  - Marvell Ethernet switches (prestera):
    - support flower flow templates
    - add basic IP forwarding support
 
  - NXP embedded Ethernet switches (ocelot & felix):
    - support Per-Stream Filtering and Policing (PSFP)
    - enable cut-through forwarding between ports by default
    - support FDMA to improve packet Rx/Tx to CPU
 
  - Other embedded switches:
    - hellcreek: improve trapping management (STP and PTP) packets
    - qca8k: support link aggregation and port mirroring
 
  - Qualcomm 802.11ax WiFi (ath11k):
    - qca6390, wcn6855: enable 802.11 power save mode in station mode
    - BSS color change support
    - WCN6855 hw2.1 support
    - 11d scan offload support
    - scan MAC address randomization support
    - full monitor mode, only supported on QCN9074
    - qca6390/wcn6855: report signal and tx bitrate
    - qca6390: rfkill support
    - qca6390/wcn6855: regdb.bin support
 
  - Intel WiFi (iwlwifi):
    - support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
      in cooperation with the BIOS
    - support for Optimized Connectivity Experience (OCE) scan
    - support firmware API version 68
    - lots of preparatory work for the upcoming Bz device family
 
  - MediaTek WiFi (mt76):
    - Specific Absorption Rate (SAR) support
    - mt7921: 160 MHz channel support
 
  - RealTek WiFi (rtw88):
    - Specific Absorption Rate (SAR) support
    - scan offload
 
  - Other WiFi NICs
    - ath10k: support fetching (pre-)calibration data from nvmem
    - brcmfmac: configure keep-alive packet on suspend
    - wcn36xx: beacon filter support
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core
  ----

   - Defer freeing TCP skbs to the BH handler, whenever possible, or at
     least perform the freeing outside of the socket lock section to
     decrease cross-CPU allocator work and improve latency.

   - Add netdevice refcount tracking to locate sources of netdevice and
     net namespace refcount leaks.

   - Make Tx watchdog less intrusive - avoid pausing Tx and restarting
     all queues from a single CPU removing latency spikes.

   - Various small optimizations throughout the stack from Eric Dumazet.

   - Make netdev->dev_addr[] constant, force modifications to go via
     appropriate helpers to allow us to keep addresses in ordered data
     structures.

   - Replace unix_table_lock with per-hash locks, improving performance
     of bind() calls.

   - Extend skb drop tracepoint with a drop reason.

   - Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.

  BPF
  ---

   - New helpers:
      - bpf_find_vma(), find and inspect VMAs for profiling use cases
      - bpf_loop(), runtime-bounded loop helper trading some execution
        time for much faster (if at all converging) verification
      - bpf_strncmp(), improve performance, avoid compiler flakiness
      - bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
        for tracing programs, all inlined by the verifier

   - Support BPF relocations (CO-RE) in the kernel loader.

   - Further the support for BTF_TYPE_TAG annotations.

   - Allow access to local storage in sleepable helpers.

   - Convert verifier argument types to a composable form with different
     attributes which can be shared across types (ro, maybe-null).

   - Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
     creating new, extensible ones where missing and deprecating those
     to be removed.

  Protocols
  ---------

   - WiFi (mac80211/cfg80211):
      - notify user space about long "come back in N" AP responses,
        allow it to react to such temporary rejections
      - allow non-standard VHT MCS 10/11 rates
      - use coarse time in airtime fairness code to save CPU cycles

   - Bluetooth:
      - rework of HCI command execution serialization to use a common
        queue and work struct, and improve handling errors reported in
        the middle of a batch of commands
      - rework HCI event handling to use skb_pull_data, avoiding packet
        parsing pitfalls
      - support AOSP Bluetooth Quality Report

   - SMC:
      - support net namespaces, following the RDMA model
      - improve connection establishment latency by pre-clearing buffers
      - introduce TCP ULP for automatic redirection to SMC

   - Multi-Path TCP:
      - support ioctls: SIOCINQ, OUTQ, and OUTQNSD
      - support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
        IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
      - support cmsgs: TCP_INQ
      - improvements in the data scheduler (assigning data to subflows)
      - support fastclose option (quick shutdown of the full MPTCP
        connection, similar to TCP RST in regular TCP)

   - MCTP (Management Component Transport) over serial, as defined by
     DMTF spec DSP0253 - "MCTP Serial Transport Binding".

  Driver API
  ----------

   - Support timestamping on bond interfaces in active/passive mode.

   - Introduce generic phylink link mode validation for drivers which
     don't have any quirks and where MAC capability bits fully express
     what's supported. Allow PCS layer to participate in the validation.
     Convert a number of drivers.

   - Add support to set/get size of buffers on the Rx rings and size of
     the tx copybreak buffer via ethtool.

   - Support offloading TC actions as first-class citizens rather than
     only as attributes of filters, improve sharing and device resource
     utilization.

   - WiFi (mac80211/cfg80211):
      - support forwarding offload (ndo_fill_forward_path)
      - support for background radar detection hardware
      - SA Query Procedures offload on the AP side

  New hardware / drivers
  ----------------------

   - tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
     real-time requirements for isochronous communication with protocols
     like OPC UA Pub/Sub.

   - Qualcomm BAM-DMUX WWAN - driver for data channels of modems
     integrated into many older Qualcomm SoCs, e.g. MSM8916 or MSM8974
     (qcom_bam_dmux).

   - Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch driver
     with support for bridging, VLANs and multicast forwarding
     (lan966x).

   - iwlmei driver for co-operating between Intel's WiFi driver and
     Intel's Active Management Technology (AMT) devices.

   - mse102x - Vertexcom MSE102x Homeplug GreenPHY chips

   - Bluetooth:
      - MediaTek MT7921 SDIO devices
      - Foxconn MT7922A
      - Realtek RTL8852AE

  Drivers
  -------

   - Significantly improve performance in the datapaths of: lan78xx,
     ax88179_178a, lantiq_xrx200, bnxt.

   - Intel Ethernet NICs:
      - igb: support PTP/time PEROUT and EXTTS SDP functions on
        82580/i354/i350 adapters
      - ixgbevf: new PF -> VF mailbox API which avoids the risk of
        mailbox corruption with ESXi
      - iavf: support configuration of VLAN features of finer
        granularity, stacked tags and filtering
      - ice: PTP support for new E822 devices with sub-ns precision
      - ice: support firmware activation without reboot

   - Mellanox Ethernet NICs (mlx5):
      - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
      - support TC forwarding when tunnel encap and decap happen between
        two ports of the same NIC
      - dynamically size and allow disabling various features to save
        resources for running in embedded / SmartNIC scenarios

   - Broadcom Ethernet NICs (bnxt):
      - use page frag allocator to improve Rx performance
      - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool

   - Other Ethernet NICs:
      - amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support

   - Microsoft cloud/virtual NIC (mana):
      - add XDP support (PASS, DROP, TX)

   - Mellanox Ethernet switches (mlxsw):
      - initial support for Spectrum-4 ASICs
      - VxLAN with IPv6 underlay

   - Marvell Ethernet switches (prestera):
      - support flower flow templates
      - add basic IP forwarding support

   - NXP embedded Ethernet switches (ocelot & felix):
      - support Per-Stream Filtering and Policing (PSFP)
      - enable cut-through forwarding between ports by default
      - support FDMA to improve packet Rx/Tx to CPU

   - Other embedded switches:
      - hellcreek: improve trapping management (STP and PTP) packets
      - qca8k: support link aggregation and port mirroring

   - Qualcomm 802.11ax WiFi (ath11k):
      - qca6390, wcn6855: enable 802.11 power save mode in station mode
      - BSS color change support
      - WCN6855 hw2.1 support
      - 11d scan offload support
      - scan MAC address randomization support
      - full monitor mode, only supported on QCN9074
      - qca6390/wcn6855: report signal and tx bitrate
      - qca6390: rfkill support
      - qca6390/wcn6855: regdb.bin support

   - Intel WiFi (iwlwifi):
      - support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
        in cooperation with the BIOS
      - support for Optimized Connectivity Experience (OCE) scan
      - support firmware API version 68
      - lots of preparatory work for the upcoming Bz device family

   - MediaTek WiFi (mt76):
      - Specific Absorption Rate (SAR) support
      - mt7921: 160 MHz channel support

   - RealTek WiFi (rtw88):
      - Specific Absorption Rate (SAR) support
      - scan offload

   - Other WiFi NICs
      - ath10k: support fetching (pre-)calibration data from nvmem
      - brcmfmac: configure keep-alive packet on suspend
      - wcn36xx: beacon filter support"

* tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2048 commits)
  tcp: tcp_send_challenge_ack delete useless param `skb`
  net/qla3xxx: Remove useless DMA-32 fallback configuration
  rocker: Remove useless DMA-32 fallback configuration
  hinic: Remove useless DMA-32 fallback configuration
  lan743x: Remove useless DMA-32 fallback configuration
  net: enetc: Remove useless DMA-32 fallback configuration
  cxgb4vf: Remove useless DMA-32 fallback configuration
  cxgb4: Remove useless DMA-32 fallback configuration
  cxgb3: Remove useless DMA-32 fallback configuration
  bnx2x: Remove useless DMA-32 fallback configuration
  et131x: Remove useless DMA-32 fallback configuration
  be2net: Remove useless DMA-32 fallback configuration
  vmxnet3: Remove useless DMA-32 fallback configuration
  bna: Simplify DMA setting
  net: alteon: Simplify DMA setting
  myri10ge: Simplify DMA setting
  qlcnic: Simplify DMA setting
  net: allwinner: Fix print format
  page_pool: remove spinlock in page_pool_refill_alloc_cache()
  amt: fix wrong return type of amt_send_membership_update()
  ...
2022-01-10 19:06:09 -08:00
Linus Torvalds e85195d5bf ARM: SoC driver updates for v5.17
There are cleanups and minor bugfixes across several SoC specific
 drivers, for Qualcomm, Samsung, NXP i.MX, AT91, Tegra, Keystone,
 Renesas, ZynqMP
 
 Noteworthy new features are:
 
  - The op-tee firmware driver gains support for asynchronous
    notifications from secure-world firmware.
 
  - Qualcomm platforms gain support for new SoC types in various
    drivers: power domain, cache controller, RPM sleep, soc-info
 
  - Samsung SoC drivers gain support for new SoCs in ChipID and PMU,
    as well as a new USIv2 driver that handles various types of
    serial communiction (uart, i2c, spi)
 
  - Renesas adds support for R-Car S4-8 (R8A779F0) in multiple
    drivers, as well as memory controller support for RZ/G2L
    (R9A07G044).
 
  - Apple M1 gains support for the PMGR power management driver
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Merge tag 'drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "There are cleanups and minor bugfixes across several SoC specific
  drivers, for Qualcomm, Samsung, NXP i.MX, AT91, Tegra, Keystone,
  Renesas, ZynqMP

  Noteworthy new features are:

   - The op-tee firmware driver gains support for asynchronous
     notifications from secure-world firmware.

   - Qualcomm platforms gain support for new SoC types in various
     drivers: power domain, cache controller, RPM sleep, soc-info

   - Samsung SoC drivers gain support for new SoCs in ChipID and PMU, as
     well as a new USIv2 driver that handles various types of serial
     communiction (uart, i2c, spi)

   - Renesas adds support for R-Car S4-8 (R8A779F0) in multiple drivers,
     as well as memory controller support for RZ/G2L (R9A07G044).

   - Apple M1 gains support for the PMGR power management driver"

* tag 'drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (94 commits)
  soc: qcom: rpmh-rsc: Fix typo in a comment
  soc: qcom: socinfo: Add SM6350 and SM7225
  dt-bindings: arm: msm: Don't mark LLCC interrupt as required
  dt-bindings: firmware: scm: Add SM6350 compatible
  dt-bindings: arm: msm: Add LLCC for SM6350
  soc: qcom: rpmhpd: Sort power-domain definitions and lists
  soc: qcom: rpmhpd: Remove mx/cx relationship on sc7280
  soc: qcom: rpmhpd: Rename rpmhpd struct names
  soc: qcom: rpmhpd: sm8450: Add the missing .peer for sm8450_cx_ao
  soc: qcom: socinfo: add SM8450 ID
  soc: qcom: rpmhpd: Add SM8450 power domains
  dt-bindings: power: rpmpd: Add SM8450 to rpmpd binding
  soc: qcom: smem: Update max processor count
  dt-bindings: arm: qcom: Document SM8450 SoC and boards
  dt-bindings: firmware: scm: Add SM8450 compatible
  dt-bindings: arm: cpus: Add kryo780 compatible
  soc: qcom: rpmpd: Add support for sm6125
  dt-bindings: qcom-rpmpd: Add sm6125 power domains
  soc: qcom: aoss: constify static struct thermal_cooling_device_ops
  PM: AVS: qcom-cpr: Use div64_ul instead of do_div
  ...
2022-01-10 08:13:52 -08:00
Vladimir Oltean 5cad43a52e net: dsa: felix: add port fast age support
Add support for flushing the MAC table on a given port in the ocelot
switch library, and use this functionality in the felix DSA driver.

This operation is needed when a port leaves a bridge to become
standalone, and when the learning is disabled, and when the STP state
changes to a state where no FDB entry should be present.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220107144229.244584-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-07 18:58:25 -08:00
Dmitry Osipenko 9131c63317 soc/tegra: Add devm_tegra_core_dev_init_opp_table_common()
Only couple drivers need to get the -ENODEV error code and majority of
drivers need to explicitly initialize the performance state. Add new
common helper which sets up OPP table for these drivers.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-12-16 14:03:38 +01:00
Clément Léger 753a026cfe net: ocelot: add FDMA support
Ethernet frames can be extracted or injected autonomously to or from
the device’s DDR3/DDR3L memory and/or PCIe memory space. Linked list
data structures in memory are used for injecting or extracting Ethernet
frames. The FDMA generates interrupts when frame extraction or
injection is done and when the linked lists need updating.

The FDMA is shared between all the ethernet ports of the switch and
uses a linked list of descriptors (DCB) to inject and extract packets.
Before adding descriptors, the FDMA channels must be stopped. It would
be inefficient to do that each time a descriptor would be added so the
channels are restarted only once they stopped.

Both channels uses ring-like structure to feed the DCBs to the FDMA.
head and tail are never touched by hardware and are completely handled
by the driver. On top of that, page recycling has been added and is
mostly taken from gianfar driver.

Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Co-developed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-10 20:56:58 -08:00
Clément Léger b471a71e52 net: ocelot: add and export ocelot_ptp_rx_timestamp()
In order to support PTP in FDMA, PTP handling code is needed. Since
this is the same as for register-based extraction, export it with
a new ocelot_ptp_rx_timestamp() function.

Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-10 20:56:57 -08:00
Clément Léger e5150f0072 net: ocelot: export ocelot_ifh_port_set() to setup IFH
FDMA will need this code to prepare the injection frame header when
sending SKBs. Move this code into ocelot_ifh_port_set() and add
conditional IFH setting for vlan and rew op if they are not set.

Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-10 20:56:57 -08:00
Colin Foster 840ece19e9 net: ocelot: fix missed include in the vsc7514_regs.h file
commit 32ecd22ba6 ("net: mscc: ocelot: split register definitions to a
separate file") left out an include for <soc/mscc/ocelot_vcap.h>. It was
missed because the only consumer was ocelot_vsc7514.h, which already
included ocelot_vcap.

Fixes: 32ecd22ba6 ("net: mscc: ocelot: split register definitions to a separate file")
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211209074010.1813010-1-colin.foster@in-advantage.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-10 19:52:10 -08:00
Colin Foster 32ecd22ba6 net: mscc: ocelot: split register definitions to a separate file
Move these to a separate file will allow them to be shared to other
drivers.

Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-07 21:44:49 -08:00
Jakub Kicinski 93d5404e89 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ipa/ipa_main.c
  8afc7e471a ("net: ipa: separate disabling setup from modem stop")
  76b5fbcd6b ("net: ipa: kill ipa_modem_init()")

Duplicated include, drop one.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-26 13:45:19 -08:00
Vladimir Oltean 95706be13b net: mscc: ocelot: create a function that replaces an existing VCAP filter
VCAP (Versatile Content Aware Processor) is the TCAM-based engine behind
tc flower offload on ocelot, among other things. The ingress port mask
on which VCAP rules match is present as a bit field in the actual key of
the rule. This means that it is possible for a rule to be shared among
multiple source ports. When the rule is added one by one on each desired
port, that the ingress port mask of the key must be edited and rewritten
to hardware.

But the API in ocelot_vcap.c does not allow for this. For one thing,
ocelot_vcap_filter_add() and ocelot_vcap_filter_del() are not symmetric,
because ocelot_vcap_filter_add() works with a preallocated and
prepopulated filter and programs it to hardware, and
ocelot_vcap_filter_del() does both the job of removing the specified
filter from hardware, as well as kfreeing it. That is to say, the only
option of editing a filter in place, which is to delete it, modify the
structure and add it back, does not work because it results in
use-after-free.

This patch introduces ocelot_vcap_filter_replace, which trivially
reprograms a VCAP entry to hardware, at the exact same index at which it
existed before, without modifying any list or allocating any memory.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-26 11:38:20 -08:00
Vladimir Oltean 8abe197038 net: dsa: felix: enable cut-through forwarding between ports by default
The VSC9959 switch embedded within NXP LS1028A (and that version of
Ocelot switches only) supports cut-through forwarding - meaning it can
start the process of looking up the destination ports for a packet, and
forward towards those ports, before the entire packet has been received
(as opposed to the store-and-forward mode).

The up side is having lower forwarding latency for large packets. The
down side is that frames with FCS errors are forwarded instead of being
dropped. However, erroneous frames do not result in incorrect updates of
the FDB or incorrect policer updates, since these processes are deferred
inside the switch to the end of frame. Since the switch starts the
cut-through forwarding process after all packet headers (including IP,
if any) have been processed, packets with large headers and small
payload do not see the benefit of lower forwarding latency.

There are two cases that need special attention.

The first is when a packet is multicast (or flooded) to multiple
destinations, one of which doesn't have cut-through forwarding enabled.
The switch deals with this automatically by disabling cut-through
forwarding for the frame towards all destination ports.

The second is when a packet is forwarded from a port of lower link speed
towards a port of higher link speed. This is not handled by the hardware
and needs software intervention.

Since we practically need to update the cut-through forwarding domain
from paths that aren't serialized by the rtnl_mutex (phylink
mac_link_down/mac_link_up ops), this means we need to serialize physical
link events with user space updates of bonding/bridging domains.

Enabling cut-through forwarding is done per {egress port, traffic class}.
I don't see any reason why this would be a configurable option as long
as it works without issues, and there doesn't appear to be any user
space configuration tool to toggle this on/off, so this patch enables
cut-through forwarding on all eligible ports and traffic classes.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20211125125808.2383984-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-25 19:32:07 -08:00
Xiaoliang Yang a7e13edf37 net: dsa: felix: restrict psfp rules on ingress port
PSFP rules take effect on the streams from any port of VSC9959 switch.
This patch use ingress port to limit the rule only active on this port.

Each stream can only match two ingress source ports in VSC9959. Streams
from lowest port gets the configuration of SFID pointed by MAC Table
lookup and streams from highest port gets the configuration of (SFID+1)
pointed by MAC Table lookup. This patch defines the PSFP rule on highest
port as dummy rule, which means that it does not modify the MAC table.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-18 12:07:24 +00:00
Xiaoliang Yang 77043c3709 net: mscc: ocelot: use index to set vcap policer
Policer was previously automatically assigned from the highest index to
the lowest index from policer pool. But police action of tc flower now
uses index to set an police entry. This patch uses the police index to
set vcap policers, so that one policer can be shared by multiple rules.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-18 12:07:24 +00:00
Xiaoliang Yang 7d4b564d6a net: dsa: felix: support psfp filter on vsc9959
VSC9959 supports Per-Stream Filtering and Policing(PSFP) that complies
with the IEEE 802.1Qci standard. The stream is identified by Null stream
identification(DMAC and VLAN ID) defined in IEEE802.1CB.

For PSFP, four tables need to be set up: stream table, stream filter
table, stream gate table, and flow meter table. Identify the stream by
parsing the tc flower keys and add it to the stream table. The stream
filter table is automatically maintained, and its index is determined by
SGID(flow gate index) and FMID(flow meter index).

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-18 12:07:24 +00:00
Xiaoliang Yang 23e2c506ad net: mscc: ocelot: add gate and police action offload to PSFP
PSFP support gate and police action. This patch add the gate and police
action to flower parse action, check chain ID to determine which block
to offload. Adding psfp callback functions to add, delete and update gate
and police in PSFP table if hardware supports it.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-18 12:07:23 +00:00
Xiaoliang Yang 0568c3bf3f net: mscc: ocelot: add MAC table stream learn and lookup operations
ocelot_mact_learn_streamdata() can be used in VSC9959 to overwrite an
FDB entry with stream data. The stream data includes SFID and SSID which
can be used for PSFP and FRER set.

ocelot_mact_lookup() can be used to check if the given {DMAC, VID} FDB
entry is exist, and also can retrieve the DEST_IDX and entry type for
the FDB entry.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-18 12:07:23 +00:00
Linus Torvalds d461e96cd2 ARM: SoC drivers for 5.16
These are all the driver updates for SoC specific drivers. There
 are a couple of subsystems with individual maintainers picking up
 their patches here:
 
  - The reset controller subsystem add support for a few new SoC
    variants to existing drivers, along with other minor improvements
 
  - The OP-TEE subsystem gets a driver for the ARM FF-A transport
 
  - The memory controller subsystem has improvements for Tegra,
    Mediatek, Renesas, Freescale and Broadcom specific drivers.
 
  - The tegra cpuidle driver changes get merged through this
    tree this time. There are only minor changes, but they depend
    on other tegra driver updates here.
 
  - The ep93xx platform finally moves to using the drivers/clk/
    subsystem, moving the code out of arch/arm in the process.
    This depends on a small sound driver change that is included
    here as well.
 
  - There are some minor updates for Qualcomm and Tegra specific
    firmware drivers.
 
 The other driver updates are mainly for drivers/soc, which contains
 a mixture of vendor specific drivers that don't really fit elsewhere:
 
  - Mediatek drivers gain more support for MT8192, with new support for
    hw-mutex and mmsys routing, plus support for reset lines in the
    mmsys driver.
 
  - Qualcomm gains a new "sleep stats" driver, and support for
    the "Generic Packet Router" in the APR driver.
 
  - There is a new user interface for routing the UARTS on ASpeed
    BMCs, something that apparently nobody else has needed so far.
 
  - More drivers can now be built as loadable modules, in particular
    for Broadcom and Samsung platforms.
 
  - Lots of improvements to the TI sysc driver for better suspend/resume
    support
 
 Finally, there are lots of minor cleanups and new device IDs for
 amlogic, renesas, tegra, qualcomm, mediateka, samsung, imx, layerscape,
 allwinner, broadcom, and omap.
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Merge tag 'drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "These are all the driver updates for SoC specific drivers. There are a
  couple of subsystems with individual maintainers picking up their
  patches here:

   - The reset controller subsystem add support for a few new SoC
     variants to existing drivers, along with other minor improvements

   - The OP-TEE subsystem gets a driver for the ARM FF-A transport

   - The memory controller subsystem has improvements for Tegra,
     Mediatek, Renesas, Freescale and Broadcom specific drivers.

   - The tegra cpuidle driver changes get merged through this tree this
     time. There are only minor changes, but they depend on other tegra
     driver updates here.

   - The ep93xx platform finally moves to using the drivers/clk/
     subsystem, moving the code out of arch/arm in the process. This
     depends on a small sound driver change that is included here as
     well.

   - There are some minor updates for Qualcomm and Tegra specific
     firmware drivers.

  The other driver updates are mainly for drivers/soc, which contains a
  mixture of vendor specific drivers that don't really fit elsewhere:

   - Mediatek drivers gain more support for MT8192, with new support for
     hw-mutex and mmsys routing, plus support for reset lines in the
     mmsys driver.

   - Qualcomm gains a new "sleep stats" driver, and support for the
     "Generic Packet Router" in the APR driver.

   - There is a new user interface for routing the UARTS on ASpeed BMCs,
     something that apparently nobody else has needed so far.

   - More drivers can now be built as loadable modules, in particular
     for Broadcom and Samsung platforms.

   - Lots of improvements to the TI sysc driver for better
     suspend/resume support"

  Finally, there are lots of minor cleanups and new device IDs for
  amlogic, renesas, tegra, qualcomm, mediateka, samsung, imx,
  layerscape, allwinner, broadcom, and omap"

* tag 'drivers-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (179 commits)
  optee: Fix spelling mistake "reclain" -> "reclaim"
  Revert "firmware: qcom: scm: Add support for MC boot address API"
  qcom: spm: allow compile-testing
  firmware: arm_ffa: Remove unused 'compat_version' variable
  soc: samsung: exynos-chipid: add exynosautov9 SoC support
  firmware: qcom: scm: Don't break compile test on non-ARM platforms
  soc: qcom: smp2p: Add of_node_put() before goto
  soc: qcom: apr: Add of_node_put() before return
  soc: qcom: qcom_stats: Fix client votes offset
  soc: qcom: rpmhpd: fix sm8350_mxc's peer domain
  dt-bindings: arm: cpus: Document qcom,msm8916-smp enable-method
  ARM: qcom: Add qcom,msm8916-smp enable-method identical to MSM8226
  firmware: qcom: scm: Add support for MC boot address API
  soc: qcom: spm: Add 8916 SPM register data
  dt-bindings: soc: qcom: spm: Document qcom,msm8916-saw2-v3.0-cpu
  soc: qcom: socinfo: Add PM8150C and SMB2351 models
  firmware: qcom_scm: Fix error retval in __qcom_scm_is_call_available()
  soc: aspeed: Add UART routing support
  soc: fsl: dpio: rename the enqueue descriptor variable
  soc: fsl: dpio: use an explicit NULL instead of 0
  ...
2021-11-03 17:00:52 -07:00
Linus Torvalds fc02cb2b37 Core:
- Remove socket skb caches
 
  - Add a SO_RESERVE_MEM socket op to forward allocate buffer space
    and avoid memory accounting overhead on each message sent
 
  - Introduce managed neighbor entries - added by control plane and
    resolved by the kernel for use in acceleration paths (BPF / XDP
    right now, HW offload users will benefit as well)
 
  - Make neighbor eviction on link down controllable by userspace
    to work around WiFi networks with bad roaming implementations
 
  - vrf: Rework interaction with netfilter/conntrack
 
  - fq_codel: implement L4S style ce_threshold_ect1 marking
 
  - sch: Eliminate unnecessary RCU waits in mini_qdisc_pair_swap()
 
 BPF:
 
  - Add support for new btf kind BTF_KIND_TAG, arbitrary type tagging
    as implemented in LLVM14
 
  - Introduce bpf_get_branch_snapshot() to capture Last Branch Records
 
  - Implement variadic trace_printk helper
 
  - Add a new Bloomfilter map type
 
  - Track <8-byte scalar spill and refill
 
  - Access hw timestamp through BPF's __sk_buff
 
  - Disallow unprivileged BPF by default
 
  - Document BPF licensing
 
 Netfilter:
 
  - Introduce egress hook for looking at raw outgoing packets
 
  - Allow matching on and modifying inner headers / payload data
 
  - Add NFT_META_IFTYPE to match on the interface type either from
    ingress or egress
 
 Protocols:
 
  - Multi-Path TCP:
    - increase default max additional subflows to 2
    - rework forward memory allocation
    - add getsockopts: MPTCP_INFO, MPTCP_TCPINFO, MPTCP_SUBFLOW_ADDRS
 
  - MCTP flow support allowing lower layer drivers to configure msg
    muxing as needed
 
  - Automatic Multicast Tunneling (AMT) driver based on RFC7450
 
  - HSR support the redbox supervision frames (IEC-62439-3:2018)
 
  - Support for the ip6ip6 encapsulation of IOAM
 
  - Netlink interface for CAN-FD's Transmitter Delay Compensation
 
  - Support SMC-Rv2 eliminating the current same-subnet restriction,
    by exploiting the UDP encapsulation feature of RoCE adapters
 
  - TLS: add SM4 GCM/CCM crypto support
 
  - Bluetooth: initial support for link quality and audio/codec
    offload
 
 Driver APIs:
 
  - Add a batched interface for RX buffer allocation in AF_XDP
    buffer pool
 
  - ethtool: Add ability to control transceiver modules' power mode
 
  - phy: Introduce supported interfaces bitmap to express MAC
    capabilities and simplify PHY code
 
  - Drop rtnl_lock from DSA .port_fdb_{add,del} callbacks
 
 New drivers:
 
  - WiFi driver for Realtek 8852AE 802.11ax devices (rtw89)
 
  - Ethernet driver for ASIX AX88796C SPI device (x88796c)
 
 Drivers:
 
  - Broadcom PHYs
    - support 72165, 7712 16nm PHYs
    - support IDDQ-SR for additional power savings
 
  - PHY support for QCA8081, QCA9561 PHYs
 
  - NXP DPAA2: support for IRQ coalescing
 
  - NXP Ethernet (enetc): support for software TCP segmentation
 
  - Renesas Ethernet (ravb) - support DMAC and EMAC blocks of
    Gigabit-capable IP found on RZ/G2L SoC
 
  - Intel 100G Ethernet
    - support for eswitch offload of TC/OvS flow API, including
      offload of GRE, VxLAN, Geneve tunneling
    - support application device queues - ability to assign Rx and Tx
      queues to application threads
    - PTP and PPS (pulse-per-second) extensions
 
  - Broadcom Ethernet (bnxt)
    - devlink health reporting and device reload extensions
 
  - Mellanox Ethernet (mlx5)
    - offload macvlan interfaces
    - support HW offload of TC rules involving OVS internal ports
    - support HW-GRO and header/data split
    - support application device queues
 
  - Marvell OcteonTx2:
    - add XDP support for PF
    - add PTP support for VF
 
  - Qualcomm Ethernet switch (qca8k): support for QCA8328
 
  - Realtek Ethernet DSA switch (rtl8366rb)
    - support bridge offload
    - support STP, fast aging, disabling address learning
    - support for Realtek RTL8365MB-VC, a 4+1 port 10M/100M/1GE switch
 
  - Mellanox Ethernet/IB switch (mlxsw)
    - multi-level qdisc hierarchy offload (e.g. RED, prio and shaping)
    - offload root TBF qdisc as port shaper
    - support multiple routing interface MAC address prefixes
    - support for IP-in-IP with IPv6 underlay
 
  - MediaTek WiFi (mt76)
    - mt7921 - ASPM, 6GHz, SDIO and testmode support
    - mt7915 - LED and TWT support
 
  - Qualcomm WiFi (ath11k)
    - include channel rx and tx time in survey dump statistics
    - support for 80P80 and 160 MHz bandwidths
    - support channel 2 in 6 GHz band
    - spectral scan support for QCN9074
    - support for rx decapsulation offload (data frames in 802.3
      format)
 
  - Qualcomm phone SoC WiFi (wcn36xx)
    - enable Idle Mode Power Save (IMPS) to reduce power consumption
      during idle
 
  - Bluetooth driver support for MediaTek MT7922 and MT7921
 
  - Enable support for AOSP Bluetooth extension in Qualcomm WCN399x
    and Realtek 8822C/8852A
 
  - Microsoft vNIC driver (mana)
    - support hibernation and kexec
 
  - Google vNIC driver (gve)
    - support for jumbo frames
    - implement Rx page reuse
 
 Refactor:
 
  - Make all writes to netdev->dev_addr go thru helpers, so that we
    can add this address to the address rbtree and handle the updates
 
  - Various TCP cleanups and optimizations including improvements
    to CPU cache use
 
  - Simplify the gnet_stats, Qdisc stats' handling and remove
    qdisc->running sequence counter
 
  - Driver changes and API updates to address devlink locking
    deficiencies
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - Remove socket skb caches

   - Add a SO_RESERVE_MEM socket op to forward allocate buffer space and
     avoid memory accounting overhead on each message sent

   - Introduce managed neighbor entries - added by control plane and
     resolved by the kernel for use in acceleration paths (BPF / XDP
     right now, HW offload users will benefit as well)

   - Make neighbor eviction on link down controllable by userspace to
     work around WiFi networks with bad roaming implementations

   - vrf: Rework interaction with netfilter/conntrack

   - fq_codel: implement L4S style ce_threshold_ect1 marking

   - sch: Eliminate unnecessary RCU waits in mini_qdisc_pair_swap()

  BPF:

   - Add support for new btf kind BTF_KIND_TAG, arbitrary type tagging
     as implemented in LLVM14

   - Introduce bpf_get_branch_snapshot() to capture Last Branch Records

   - Implement variadic trace_printk helper

   - Add a new Bloomfilter map type

   - Track <8-byte scalar spill and refill

   - Access hw timestamp through BPF's __sk_buff

   - Disallow unprivileged BPF by default

   - Document BPF licensing

  Netfilter:

   - Introduce egress hook for looking at raw outgoing packets

   - Allow matching on and modifying inner headers / payload data

   - Add NFT_META_IFTYPE to match on the interface type either from
     ingress or egress

  Protocols:

   - Multi-Path TCP:
      - increase default max additional subflows to 2
      - rework forward memory allocation
      - add getsockopts: MPTCP_INFO, MPTCP_TCPINFO, MPTCP_SUBFLOW_ADDRS

   - MCTP flow support allowing lower layer drivers to configure msg
     muxing as needed

   - Automatic Multicast Tunneling (AMT) driver based on RFC7450

   - HSR support the redbox supervision frames (IEC-62439-3:2018)

   - Support for the ip6ip6 encapsulation of IOAM

   - Netlink interface for CAN-FD's Transmitter Delay Compensation

   - Support SMC-Rv2 eliminating the current same-subnet restriction, by
     exploiting the UDP encapsulation feature of RoCE adapters

   - TLS: add SM4 GCM/CCM crypto support

   - Bluetooth: initial support for link quality and audio/codec offload

  Driver APIs:

   - Add a batched interface for RX buffer allocation in AF_XDP buffer
     pool

   - ethtool: Add ability to control transceiver modules' power mode

   - phy: Introduce supported interfaces bitmap to express MAC
     capabilities and simplify PHY code

   - Drop rtnl_lock from DSA .port_fdb_{add,del} callbacks

  New drivers:

   - WiFi driver for Realtek 8852AE 802.11ax devices (rtw89)

   - Ethernet driver for ASIX AX88796C SPI device (x88796c)

  Drivers:

   - Broadcom PHYs
      - support 72165, 7712 16nm PHYs
      - support IDDQ-SR for additional power savings

   - PHY support for QCA8081, QCA9561 PHYs

   - NXP DPAA2: support for IRQ coalescing

   - NXP Ethernet (enetc): support for software TCP segmentation

   - Renesas Ethernet (ravb) - support DMAC and EMAC blocks of
     Gigabit-capable IP found on RZ/G2L SoC

   - Intel 100G Ethernet
      - support for eswitch offload of TC/OvS flow API, including
        offload of GRE, VxLAN, Geneve tunneling
      - support application device queues - ability to assign Rx and Tx
        queues to application threads
      - PTP and PPS (pulse-per-second) extensions

   - Broadcom Ethernet (bnxt)
      - devlink health reporting and device reload extensions

   - Mellanox Ethernet (mlx5)
      - offload macvlan interfaces
      - support HW offload of TC rules involving OVS internal ports
      - support HW-GRO and header/data split
      - support application device queues

   - Marvell OcteonTx2:
      - add XDP support for PF
      - add PTP support for VF

   - Qualcomm Ethernet switch (qca8k): support for QCA8328

   - Realtek Ethernet DSA switch (rtl8366rb)
      - support bridge offload
      - support STP, fast aging, disabling address learning
      - support for Realtek RTL8365MB-VC, a 4+1 port 10M/100M/1GE switch

   - Mellanox Ethernet/IB switch (mlxsw)
      - multi-level qdisc hierarchy offload (e.g. RED, prio and shaping)
      - offload root TBF qdisc as port shaper
      - support multiple routing interface MAC address prefixes
      - support for IP-in-IP with IPv6 underlay

   - MediaTek WiFi (mt76)
      - mt7921 - ASPM, 6GHz, SDIO and testmode support
      - mt7915 - LED and TWT support

   - Qualcomm WiFi (ath11k)
      - include channel rx and tx time in survey dump statistics
      - support for 80P80 and 160 MHz bandwidths
      - support channel 2 in 6 GHz band
      - spectral scan support for QCN9074
      - support for rx decapsulation offload (data frames in 802.3
        format)

   - Qualcomm phone SoC WiFi (wcn36xx)
      - enable Idle Mode Power Save (IMPS) to reduce power consumption
        during idle

   - Bluetooth driver support for MediaTek MT7922 and MT7921

   - Enable support for AOSP Bluetooth extension in Qualcomm WCN399x and
     Realtek 8822C/8852A

   - Microsoft vNIC driver (mana)
      - support hibernation and kexec

   - Google vNIC driver (gve)
      - support for jumbo frames
      - implement Rx page reuse

  Refactor:

   - Make all writes to netdev->dev_addr go thru helpers, so that we can
     add this address to the address rbtree and handle the updates

   - Various TCP cleanups and optimizations including improvements to
     CPU cache use

   - Simplify the gnet_stats, Qdisc stats' handling and remove
     qdisc->running sequence counter

   - Driver changes and API updates to address devlink locking
     deficiencies"

* tag 'net-next-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2122 commits)
  Revert "net: avoid double accounting for pure zerocopy skbs"
  selftests: net: add arp_ndisc_evict_nocarrier
  net: ndisc: introduce ndisc_evict_nocarrier sysctl parameter
  net: arp: introduce arp_evict_nocarrier sysctl parameter
  libbpf: Deprecate AF_XDP support
  kbuild: Unify options for BTF generation for vmlinux and modules
  selftests/bpf: Add a testcase for 64-bit bounds propagation issue.
  bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit.
  bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off.
  net: vmxnet3: remove multiple false checks in vmxnet3_ethtool.c
  net: avoid double accounting for pure zerocopy skbs
  tcp: rename sk_wmem_free_skb
  netdevsim: fix uninit value in nsim_drv_configure_vfs()
  selftests/bpf: Fix also no-alu32 strobemeta selftest
  bpf: Add missing map_delete_elem method to bloom filter map
  selftests/bpf: Add bloom map success test for userspace calls
  bpf: Add alignment padding for "map_extra" + consolidate holes
  bpf: Bloom filter map naming fixups
  selftests/bpf: Add test cases for struct_ops prog
  bpf: Add dummy BPF STRUCT_OPS for test purpose
  ...
2021-11-02 06:20:58 -07:00
Linus Torvalds 57a315cd71 Time, timers and timekeeping updates:
- No core updates
 
   - No new clocksource/event driver
 
   - A large rework of the ARM architected timer driver to prepare for the
     support of the upcoming ARMv8.6 support
 
   - Fix Kconfig options for Exynos MCT, Samsung PWM and TI DM timers
 
   - Address a namespace collison in the ARC sp804 timer driver
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Merge tag 'timers-core-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Time, timers and timekeeping updates:

   - No core updates

   - No new clocksource/event driver

   - A large rework of the ARM architected timer driver to prepare for
     the support of the upcoming ARMv8.6 support

   - Fix Kconfig options for Exynos MCT, Samsung PWM and TI DM timers

   - Address a namespace collison in the ARC sp804 timer driver"

* tag 'timers-core-2021-10-31' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/timer-ti-dm: Select TIMER_OF
  clocksource/drivers/exynosy: Depend on sub-architecture for Exynos MCT and Samsung PWM
  clocksource/drivers/arch_arm_timer: Move workaround synchronisation around
  clocksource/drivers/arm_arch_timer: Fix masking for high freq counters
  clocksource/drivers/arm_arch_timer: Drop unnecessary ISB on CVAL programming
  clocksource/drivers/arm_arch_timer: Remove any trace of the TVAL programming interface
  clocksource/drivers/arm_arch_timer: Work around broken CVAL implementations
  clocksource/drivers/arm_arch_timer: Advertise 56bit timer to the core code
  clocksource/drivers/arm_arch_timer: Move MMIO timer programming over to CVAL
  clocksource/drivers/arm_arch_timer: Fix MMIO base address vs callback ordering issue
  clocksource/drivers/arm_arch_timer: Move drop _tval from erratum function names
  clocksource/drivers/arm_arch_timer: Move system register timer programming over to CVAL
  clocksource/drivers/arm_arch_timer: Extend write side of timer register accessors to u64
  clocksource/drivers/arm_arch_timer: Drop CNT*_TVAL read accessors
  clocksource/arm_arch_timer: Add build-time guards for unhandled register accesses
  clocksource/drivers/arc_timer: Eliminate redefined macro error
2021-11-01 13:44:55 -07:00
Vladimir Oltean 2468346c56 net: mscc: ocelot: serialize access to the MAC table
DSA would like to remove the rtnl_lock from its
SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE handlers, and the felix driver uses
the same MAC table functions as ocelot.

This means that the MAC table functions will no longer be implicitly
serialized with respect to each other by the rtnl_mutex, we need to add
a dedicated lock in ocelot for the non-atomic operations of selecting a
MAC table row, reading/writing what we want and polling for completion.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-25 12:59:41 +01:00
David S. Miller 2d7e73f09f Revert "Merge branch 'dsa-rtnl'"
This reverts commit 965e6b262f, reversing
changes made to 4d98bb0d7e.
2021-10-25 12:59:25 +01:00
Vladimir Oltean f2c4bdf62d net: mscc: ocelot: serialize access to the MAC table
DSA would like to remove the rtnl_lock from its
SWITCHDEV_FDB_{ADD,DEL}_TO_DEVICE handlers, and the felix driver uses
the same MAC table functions as ocelot.

This means that the MAC table functions will no longer be implicitly
serialized with respect to each other by the rtnl_mutex, we need to add
a dedicated lock in ocelot for the non-atomic operations of selecting a
MAC table row, reading/writing what we want and polling for completion.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-24 13:47:44 +01:00
Vladimir Oltean d4004422f6 net: mscc: ocelot: track the port pvid using a pointer
Now that we have a list of struct ocelot_bridge_vlan entries, we can
rewrite the pvid logic to simply point to one of those structures,
instead of having a separate structure with a "bool valid".
The NULL pointer will represent the lack of a bridge pvid (not to be
confused with the lack of a hardware pvid on the port, that is present
at all times).

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-21 12:14:29 +01:00
Vladimir Oltean 0da1a1c489 net: mscc: ocelot: allow a config where all bridge VLANs are egress-untagged
At present, the ocelot driver accepts a single egress-untagged bridge
VLAN, meaning that this sequence of operations:

ip link add br0 type bridge vlan_filtering 1
ip link set swp0 master br0
bridge vlan add dev swp0 vid 2 pvid untagged

fails because the bridge automatically installs VID 1 as a pvid & untagged
VLAN, and vid 2 would be the second untagged VLAN on this port. It is
necessary to delete VID 1 before proceeding to add VID 2.

This limitation comes from the fact that we operate the port tag, when
it has an egress-untagged VID, in the OCELOT_PORT_TAG_NATIVE mode.
The ocelot switches do not have full flexibility and can either have one
single VID as egress-untagged, or all of them.

There are use cases for having all VLANs as egress-untagged as well, and
this patch adds support for that.

The change rewrites ocelot_port_set_native_vlan() into a more generic
ocelot_port_manage_port_tag() function. Because the software bridge's
state, transmitted to us via switchdev, can become very complex, we
don't attempt to track all possible state transitions, but instead take
a more declarative approach and just make ocelot_port_manage_port_tag()
figure out which more to operate in:

- port is VLAN-unaware: the classified VLAN (internal, unrelated to the
                        802.1Q header) is not inserted into packets on egress
- port is VLAN-aware:
  - port has tagged VLANs:
    -> port has no untagged VLAN: set up as pure trunk
    -> port has one untagged VLAN: set up as trunk port + native VLAN
    -> port has more than one untagged VLAN: this is an invalid config
       which is rejected by ocelot_vlan_prepare
  - port has no tagged VLANs
    -> set up as pure egress-untagged port

We don't keep the number of tagged and untagged VLANs, we just count the
structures we keep.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-21 12:14:29 +01:00
Vladimir Oltean 90e0aa8d10 net: mscc: ocelot: convert the VLAN masks to a list
First and foremost, the driver currently allocates a constant sized
4K * u32 (16KB memory) array for the VLAN masks. However, a typical
application might not need so many VLANs, so if we dynamically allocate
the memory as needed, we might actually save some space.

Secondly, we'll need to keep more advanced bookkeeping of the VLANs we
have, notably we'll have to check how many untagged and how many tagged
VLANs we have. This will have to stay in a structure, and allocating
another 16 KB array for that is again a bit too much.

So refactor the bridge VLANs in a linked list of structures.

The hook points inside the driver are ocelot_vlan_member_add() and
ocelot_vlan_member_del(), which previously used to operate on the
ocelot->vlan_mask[vid] array element.

ocelot_vlan_member_add() and ocelot_vlan_member_del() used to call
ocelot_vlan_member_set() to commit to the ocelot->vlan_mask.
Additionally, we had two calls to ocelot_vlan_member_set() from outside
those callers, and those were directly from ocelot_vlan_init().
Those calls do not set up bridging service VLANs, instead they:

- clear the VLAN table on reset
- set the port pvid to the value used by this driver for VLAN-unaware
  standalone port operation (VID 0)

So now, when we have a structure which represents actual bridge VLANs,
VID 0 doesn't belong in that structure, since it is not part of the
bridging layer.

So delete the middle man, ocelot_vlan_member_set(), and let
ocelot_vlan_init() call directly ocelot_vlant_set_mask() which forgoes
any data structure and writes directly to hardware, which is all that we
need.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-21 12:14:29 +01:00
Vladimir Oltean 62a22bcbd3 net: mscc: ocelot: add a type definition for REW_TAG_CFG_TAG_CFG
This is a cosmetic patch which clarifies what are the port tagging
options for Ocelot switches.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-21 12:14:29 +01:00
Randy Dunlap 58100c34f7 clocksource/drivers/arc_timer: Eliminate redefined macro error
In drivers/clocksource/, 3 drivers use "TIMER_CTRL_IE" with 3 different
values.  Two of them (mps2-timer.c and timer-sp804.c/timer-sp.h) are
localized and left unmodifed.

One of them uses a shared header file (<soc/arc/timers.h>), which is
what is causing the "redefined" warnings, so change the macro name in
that driver only. Also change the TIMER_CTRL_NH macro name.
Both macro names are prefixed with "ARC_" to reduce the likelihood
of future name collisions.

In file included from ../drivers/clocksource/timer-sp804.c:24:
../drivers/clocksource/timer-sp.h:25: error: "TIMER_CTRL_IE" redefined [-Werror]
   25 | #define TIMER_CTRL_IE           (1 << 5)        /*   VR */
../include/soc/arc/timers.h:20: note: this is the location of the previous definition
   20 | #define TIMER_CTRL_IE           (1 << 0) /* Interrupt when Count reaches limit */

Fixes: b26c2e3823 ("ARC: breakout timer include code into separate header")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: linux-snps-arc@lists.infradead.org
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Shahab Vahedi <Shahab.Vahedi@synopsys.com>
Acked-by: Vineet Gupta <vgupta@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210924020825.20317-1-rdunlap@infradead.org
2021-10-16 22:15:01 +02:00
Ioana Ciornei 69651bd8d3 soc: fsl: dpio: add Net DIM integration
Use the generic dynamic interrupt moderation (dim) framework to
implement adaptive interrupt coalescing on Rx. With the per-packet
interrupt scheme, a high interrupt rate has been noted for moderate
traffic flows leading to high CPU utilization.

The dpio driver exports new functions to enable/disable adaptive IRQ
coalescing on a DPIO object, to query the state or to update Net DIM
with a new set of bytes and frames dequeued.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-15 14:32:41 +01:00
Ioana Ciornei ed1d2143fe soc: fsl: dpio: add support for irq coalescing per software portal
In DPAA2 based SoCs, the IRQ coalesing support per software portal has 2
configurable parameters:
 - the IRQ timeout period (QBMAN_CINH_SWP_ITPR): how many 256 QBMAN
   cycles need to pass until a dequeue interrupt is asserted.
 - the IRQ threshold (QBMAN_CINH_SWP_DQRR_ITR): how many dequeue
   responses in the DQRR ring would generate an IRQ.

Add support for setting up and querying these IRQ coalescing related
parameters.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-15 14:32:40 +01:00
Ioana Ciornei 2cf0b6fe9b soc: fsl: dpio: extract the QBMAN clock frequency from the attributes
Through the dpio_get_attributes() firmware call the dpio driver has
access to the QBMAN clock frequency. Extend the structure which holds
the firmware's response so that we can have access to this information.

This will be needed in the next patches which also add support for
interrupt coalescing which needs to be configured based on the
frequency.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-15 14:32:40 +01:00
Jakub Kicinski e15f5972b8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
tools/testing/selftests/net/ioam6.sh
  7b1700e009 ("selftests: net: modify IOAM tests for undef bits")
  bf77b1400a ("selftests: net: Test for the IOAM encapsulation with IPv6")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-14 16:50:14 -07:00
Arnd Bergmann 936fc53f3d Qualcomm driver updates for v5.16
This drops the use of power-domains for exposing the load_state from the
 QMP driver to clients, to avoid issues related to system suspend.
 
 SMP2P becomes wakeup capable, to allow dying remoteprocs to wake up
 Linux from suspend to perform recovery.
 
 It adds RPM power-domain support for SM6350 and MSM8953 and base RPM
 support for MSM8953 and QCM2290.
 
 It adds support for MSM8996, SDM630 and SDM660 in the SPM driver, which
 will enable the introduction of proper voltage scaling of the CPU
 subsystem.
 
 Support for releasing secondary CPUs on MSM8226 is introduced.
 
 The Asynchronous Packet Router (APR) driver is extended to support the
 new Generic Packet Router (GPR) variant, which is used to communicate
 with the firmware in the new AudioReach audio driver.
 
 Lastly it transitions a number of drivers to safer string functions, as
 well as switching things to use devm_platform_ioremap_resource().
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Merge tag 'qcom-drivers-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers

Qualcomm driver updates for v5.16

This drops the use of power-domains for exposing the load_state from the
QMP driver to clients, to avoid issues related to system suspend.

SMP2P becomes wakeup capable, to allow dying remoteprocs to wake up
Linux from suspend to perform recovery.

It adds RPM power-domain support for SM6350 and MSM8953 and base RPM
support for MSM8953 and QCM2290.

It adds support for MSM8996, SDM630 and SDM660 in the SPM driver, which
will enable the introduction of proper voltage scaling of the CPU
subsystem.

Support for releasing secondary CPUs on MSM8226 is introduced.

The Asynchronous Packet Router (APR) driver is extended to support the
new Generic Packet Router (GPR) variant, which is used to communicate
with the firmware in the new AudioReach audio driver.

Lastly it transitions a number of drivers to safer string functions, as
well as switching things to use devm_platform_ioremap_resource().

* tag 'qcom-drivers-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (40 commits)
  soc: qcom: apr: Add GPR support
  soc: dt-bindings: qcom: add gpr bindings
  soc: qcom: apr: make code more reuseable
  soc: dt-bindings: qcom: apr: deprecate qcom,apr-domain property
  soc: dt-bindings: qcom: apr: convert to yaml
  dt-bindings: soc: qcom: aoss: Delete unused power-domain definitions
  dt-bindings: msm/dp: Remove aoss-qmp header
  soc: qcom: aoss: Drop power domain support
  dt-bindings: soc: qcom: aoss: Drop the load state power-domain
  soc: qcom: smp2p: Add wakeup capability to SMP2P IRQ
  dt-bindings: power: rpmpd: Add SM6350 to rpmpd binding
  dt-bindings: soc: qcom: aoss: Add SM6350 compatible
  soc: qcom: llcc: Disable MMUHWT retention
  soc: qcom: smd-rpm: Add QCM2290 compatible
  dt-bindings: soc: qcom: smd-rpm: Add QCM2290 compatible
  firmware: qcom_scm: Add compatible for MSM8953 SoC
  dt-bindings: firmware: qcom-scm: Document msm8953 bindings
  soc: qcom: pdr: Prefer strscpy over strcpy
  soc: qcom: rpmh-rsc: Make use of the helper function devm_platform_ioremap_resource_byname()
  soc: qcom: gsbi: Make use of the helper function devm_platform_ioremap_resource()
  ...

Link: https://lore.kernel.org/r/20211012173442.1017010-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-10-13 22:34:43 +02:00
Vladimir Oltean 49f885b2d9 net: dsa: tag_ocelot_8021q: break circular dependency with ocelot switch lib
Michael reported that when using the "ocelot-8021q" tagging protocol,
the switch driver module must be manually loaded before the tagging
protocol can be loaded/is available.

This appears to be the same problem described here:
https://lore.kernel.org/netdev/20210908220834.d7gmtnwrorhharna@skbuf/
where due to the fact that DSA tagging protocols make use of symbols
exported by the switch drivers, circular dependencies appear and this
breaks module autoloading.

The ocelot_8021q driver needs the ocelot_can_inject() and
ocelot_port_inject_frame() functions from the switch library. Previously
the wrong approach was taken to solve that dependency: shims were
provided for the case where the ocelot switch library was compiled out,
but that turns out to be insufficient, because the dependency when the
switch lib _is_ compiled is problematic too.

We cannot declare ocelot_can_inject() and ocelot_port_inject_frame() as
static inline functions, because these access I/O functions like
__ocelot_write_ix() which is called by ocelot_write_rix(). Making those
static inline basically means exposing the whole guts of the ocelot
switch library, not ideal...

We already have one tagging protocol driver which calls into the switch
driver during xmit but not using any exported symbol: sja1105_defer_xmit.
We can do the same thing here: create a kthread worker and one work item
per skb, and let the switch driver itself do the register accesses to
send the skb, and then consume it.

Fixes: 0a6f17c6ae ("net: dsa: tag_ocelot_8021q: add support for PTP timestamping")
Reported-by: Michael Walle <michael@walle.cc>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-12 17:35:18 -07:00
Vladimir Oltean deab6b1cd9 net: dsa: tag_ocelot: break circular dependency with ocelot switch lib driver
As explained here:
https://lore.kernel.org/netdev/20210908220834.d7gmtnwrorhharna@skbuf/
DSA tagging protocol drivers cannot depend on symbols exported by switch
drivers, because this creates a circular dependency that breaks module
autoloading.

The tag_ocelot.c file depends on the ocelot_ptp_rew_op() function
exported by the common ocelot switch lib. This function looks at
OCELOT_SKB_CB(skb) and computes how to populate the REW_OP field of the
DSA tag, for PTP timestamping (the command: one-step/two-step, and the
TX timestamp identifier).

None of that requires deep insight into the driver, it is quite
stateless, as it only depends upon the skb->cb. So let's make it a
static inline function and put it in include/linux/dsa/ocelot.h, a
file that despite its name is used by the ocelot switch driver for
populating the injection header too - since commit 40d3f295b5 ("net:
mscc: ocelot: use common tag parsing code with DSA").

With that function declared as static inline, its body is expanded
inside each call site, so the dependency is broken and the DSA tagger
can be built without the switch library, upon which the felix driver
depends.

Fixes: 39e5308b32 ("net: mscc: ocelot: support PTP Sync one-step timestamping")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-12 17:35:18 -07:00
Vladimir Oltean ebb4c6a990 net: mscc: ocelot: cross-check the sequence id from the timestamp FIFO with the skb PTP header
The sad reality is that when a PTP frame with a TX timestamping request
is transmitted, it isn't guaranteed that it will make it all the way to
the wire (due to congestion inside the switch), and that a timestamp
will be taken by the hardware and placed in the timestamp FIFO where an
IRQ will be raised for it.

The implication is that if enough PTP frames are silently dropped by the
hardware such that the timestamp ID has rolled over, it is possible to
match a timestamp to an old skb.

Furthermore, nobody will match on the real skb corresponding to this
timestamp, since we stupidly matched on a previous one that was stale in
the queue, and stopped there.

So PTP timestamping will be broken and there will be no way to recover.

It looks like the hardware parses the sequenceID from the PTP header,
and also provides that metadata for each timestamp. The driver currently
ignores this, but it shouldn't.

As an extra resiliency measure, do the following:

- check whether the PTP sequenceID also matches between the skb and the
  timestamp, treat the skb as stale otherwise and free it

- if we see a stale skb, don't stop there and try to match an skb one
  more time, chances are there's one more skb in the queue with the same
  timestamp ID, otherwise we wouldn't have ever found the stale one (it
  is by timestamp ID that we matched it).

While this does not prevent PTP packet drops, it at least prevents
the catastrophic consequences of incorrect timestamp matching.

Since we already call ptp_classify_raw in the TX path, save the result
in the skb->cb of the clone, and just use that result in the interrupt
code path.

Fixes: 4e3b0468e6 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-12 17:35:18 -07:00
Vladimir Oltean 52849bcf00 net: mscc: ocelot: avoid overflowing the PTP timestamp FIFO
PTP packets with 2-step TX timestamp requests are matched to packets
based on the egress port number and a 6-bit timestamp identifier.
All PTP timestamps are held in a common FIFO that is 128 entry deep.

This patch ensures that back-to-back timestamping requests cannot exceed
the hardware FIFO capacity. If that happens, simply send the packets
without requesting a TX timestamp to be taken (in the case of felix,
since the DSA API has a void return code in ds->ops->port_txtstamp) or
drop them (in the case of ocelot).

I've moved the ts_id_lock from a per-port basis to a per-switch basis,
because we need separate accounting for both numbers of PTP frames in
flight. And since we need locking to inc/dec the per-switch counter,
that also offers protection for the per-port counter and hence there is
no reason to have a per-port counter anymore.

Fixes: 4e3b0468e6 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-12 17:35:17 -07:00
Vladimir Oltean c57fe0037a net: mscc: ocelot: make use of all 63 PTP timestamp identifiers
At present, there is a problem when user space bombards a port with PTP
event frames which have TX timestamping requests (or when a tc-taprio
offload is installed on a port, which delays the TX timestamps by a
significant amount of time). The driver will happily roll over the 2-bit
timestamp ID and this will cause incorrect matches between an skb and
the TX timestamp collected from the FIFO.

The Ocelot switches have a 6-bit PTP timestamp identifier, and the value
63 is reserved, so that leaves identifiers 0-62 to be used.

The timestamp identifiers are selected by the REW_OP packet field, and
are actually shared between CPU-injected frames and frames which match a
VCAP IS2 rule that modifies the REW_OP. The hardware supports
partitioning between the two uses of the REW_OP field through the
PTP_ID_LOW and PTP_ID_HIGH registers, and by default reserves the PTP
IDs 0-3 for CPU-injected traffic and the rest for VCAP IS2.

The driver does not use VCAP IS2 to set REW_OP for 2-step timestamping,
and it also writes 0xffffffff to both PTP_ID_HIGH and PTP_ID_LOW in
ocelot_init_timestamp() which makes all timestamp identifiers available
to CPU injection.

Therefore, we can make use of all 63 timestamp identifiers, which should
allow more timestampable packets to be in flight on each port. This is
only part of the solution, more issues will be addressed in future changes.

Fixes: 4e3b0468e6 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-12 17:35:17 -07:00
Jakub Kicinski 9fe1155233 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-07 15:24:06 -07:00
Dmitry Osipenko 0d7281b27a soc/tegra: pm: Make stubs usable for compile testing
The PM stubs need to depend on ARCH_TEGRA in order to be usable for
compile-testing of tegra-cpuidle driver. Add the dependency.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-10-04 21:27:40 +02:00
Dmitry Osipenko aa54686e28 soc/tegra: irq: Add stubs needed for compile testing
Add stubs needed for compile-testing of tegra-cpuidle driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-10-04 21:27:21 +02:00
Dmitry Osipenko 45e934407b soc/tegra: fuse: Add stubs needed for compile testing
Add stubs needed for compile-testing of tegra-cpuidle driver.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-10-04 21:27:04 +02:00
Vladimir Oltean de5bbb6f7e net: mscc: ocelot: support egress VLAN rewriting via VCAP ES0
Currently the ocelot driver does support the 'vlan modify' action, but
in the ingress chain, and it is offloaded to VCAP IS1. This action
changes the classified VLAN before the packet enters the bridging
service, and the bridging works with the classified VLAN modified by
VCAP IS1.

That is good for some use cases, but there are others where the VLAN
must be modified at the stage of the egress port, after the packet has
exited the bridging service. One example is simulating IEEE 802.1CB
active stream identification filters ("active" means that not only the
rule matches on a packet flow, but it is also able to change some
headers). For example, a stream is replicated on two egress ports, but
they must have different VLAN IDs on egress ports A and B.

This seems like a task for the VCAP ES0, but that currently only
supports pushing the ES0 tag A, which is specified in the rule. Pushing
another VLAN header is not what we want, but rather overwriting the
existing one.

It looks like when we push the ES0 tag A, it is actually possible to not
only take the ES0 tag A's value from the rule itself (VID_A_VAL), but
derive it from the following formula:

ES0_TAG_A = Classified VID + VID_A_VAL

Otherwise said, ES0_TAG_A can be used to increment with a given value
the VLAN ID that the packet was already classified to, and the packet
will have this value as an outer VLAN tag. This new VLAN ID value then
gets stripped on egress (or not) according to the value of the native
VLAN from the bridging service.

While the hardware will happily increment the classified VLAN ID for all
packets that match the ES0 rule, in practice this would be rather
insane, so we only allow this kind of ES0 action if the ES0 filter
contains a VLAN ID too, so as to restrict the matching on a known
classified VLAN. If we program VID_A_VAL with the delta between the
desired final VLAN (ES0_TAG_A) and the classified VLAN, we obtain the
desired behavior.

It doesn't look like it is possible with the tc-vlan action to modify
the VLAN ID but not the PCP. In hardware it is possible to leave the PCP
to the classified value, but we unconditionally program it to overwrite
it with the PCP value from the rule.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-02 14:15:57 +01:00
Vladimir Oltean 019d9329e7 net: mscc: ocelot: fix VCAP filters remaining active after being deleted
When ocelot_flower.c calls ocelot_vcap_filter_add(), the filter has a
given filter->id.cookie. This filter is added to the block->rules list.

However, when ocelot_flower.c calls ocelot_vcap_block_find_filter_by_id()
which passes the cookie as argument, the filter is never found by
filter->id.cookie when searching through the block->rules list.

This is unsurprising, since the filter->id.cookie is an unsigned long,
but the cookie argument provided to ocelot_vcap_block_find_filter_by_id()
is a signed int, and the comparison fails.

Fixes: 50c6cc5b92 ("net: mscc: ocelot: store a namespaced VCAP filter ID")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20210930125330.2078625-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-01 15:13:20 -07:00
AngeloGioacchino Del Regno 13e72c3e22 soc: qcom: spm: Implement support for SAWv4.1, SDM630/660 L2 AVS
Implement the support for SAW v4.1, used in at least MSM8998,
SDM630, SDM660 and APQ variants and, while at it, also add the
configuration for the SDM630/660 Silver and Gold cluster L2
Adaptive Voltage Scaler: this is also one of the prerequisites
to allow the OSM controller to perform DCVS.

Please note that despite there are various "versions" of these
values downstream, these are the only ones that are perfectly
stable on the entire set of tested devices.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210729155609.608159-4-angelogioacchino.delregno@somainline.org
2021-09-21 17:41:48 -05:00
AngeloGioacchino Del Regno 60f3692b5f cpuidle: qcom_spm: Detach state machine from main SPM handling
In commit a871be6b8e ("cpuidle: Convert Qualcomm SPM driver to a generic
CPUidle driver") the SPM driver has been converted to a
generic CPUidle driver: that was mainly made to simplify the
driver and that was a great accomplishment;
Though, at that time, this driver was only applicable to ARM 32-bit SoCs,
lacking logic about the handling of newer generation SAW.

In preparation for the enablement of SPM features on AArch64/ARM64,
split the cpuidle-qcom-spm driver in two: the CPUIdle related
state machine (currently used only on ARM SoCs) stays there, while
the SPM communication handling lands back in soc/qcom/spm.c and
also making sure to not discard the simplifications that were
introduced in the aforementioned commit.

Since now the "two drivers" are split, the SCM dependency in the
main SPM handling is gone and for this reason it was also possible
to move the SPM initialization early: this will also make sure that
whenever the SAW CPUIdle driver is getting initialized, the SPM
driver will be ready to do the job.

Please note that the anticipation of the SPM initialization was
also done to optimize the boot times on platforms that have their
CPU/L2 idle states managed by other means (such as PSCI), while
needing SAW initialization for other purposes, like AVS control.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210729155609.608159-2-angelogioacchino.delregno@somainline.org
2021-09-21 17:41:48 -05:00
Linus Torvalds 866147b8fa ARM: SoC drivers for 5.15
These are updates for drivers that are tied to a particular SoC,
 including the correspondig device tree bindings:
 
  - A couple of reset controller changes for unisoc, uniphier, renesas
    and zte platforms
 
  - memory controller driver fixes for omap and tegra
 
  - Rockchip io domain driver updates
 
  - Lots of updates for qualcomm platforms, mostly touching their
    firmware and power management drivers
 
  - Tegra FUSE and firmware driver updateѕ
 
  - Support for virtio transports in the SCMI firmware framework
 
  - cleanup of ixp4xx drivers, towards enabling multiplatform
    support and bringing it up to date with modern platforms
 
  - Minor updates for keystone, mediatek, omap, renesas.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'drivers-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "These are updates for drivers that are tied to a particular SoC,
  including the correspondig device tree bindings:

   - A couple of reset controller changes for unisoc, uniphier, renesas
     and zte platforms

   - memory controller driver fixes for omap and tegra

   - Rockchip io domain driver updates

   - Lots of updates for qualcomm platforms, mostly touching their
     firmware and power management drivers

   - Tegra FUSE and firmware driver updateѕ

   - Support for virtio transports in the SCMI firmware framework

   - cleanup of ixp4xx drivers, towards enabling multiplatform support
     and bringing it up to date with modern platforms

   - Minor updates for keystone, mediatek, omap, renesas"

* tag 'drivers-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (96 commits)
  reset: simple: remove ZTE details in Kconfig help
  soc: rockchip: io-domain: Remove unneeded semicolon
  soc: rockchip: io-domain: add rk3568 support
  dt-bindings: power: add rk3568-pmu-io-domain support
  bus: ixp4xx: return on error in ixp4xx_exp_probe()
  soc: renesas: Prefer memcpy() over strcpy()
  firmware: tegra: Stop using seq_get_buf()
  soc/tegra: fuse: Enable fuse clock on suspend for Tegra124
  soc/tegra: fuse: Add runtime PM support
  soc/tegra: fuse: Clear fuse->clk on driver probe failure
  soc/tegra: pmc: Prevent racing with cpuilde driver
  soc/tegra: bpmp: Remove unused including <linux/version.h>
  dt-bindings: soc: ti: pruss: Add dma-coherent property
  soc: ti: Remove pm_runtime_irq_safe() usage for smartreflex
  soc: ti: pruss: Enable support for ICSSG subsystems on K3 AM64x SoCs
  dt-bindings: soc: ti: pruss: Update bindings for K3 AM64x SoCs
  firmware: arm_scmi: Use WARN_ON() to check configured transports
  firmware: arm_scmi: Fix boolconv.cocci warnings
  soc: mediatek: mmsys: Fix missing UFOE component in mt8173 table routing
  soc: mediatek: mmsys: add MT8365 support
  ...
2021-09-01 15:25:28 -07:00
Linus Torvalds 634135a07b ARM: SoC updates for 5.15
There are three noteworthy updates for 32-bit arm platforms this time:
 
  - The Microchip SAMA7 family based on Cortex-A7 gets introduced, a new
    cousin to the older SAM9 (ARM9xx based) and SAMA5 (Cortex-A5 based)
    SoCs.
 
  - The ixp4xx platform (based on Intel XScale) is finally converted to
    device tree, and all the old board files are getting removed now.
 
  - The Cirrus Logic EP93xx platform loses support for the old
    MaverickCrunch FPU. Support for compiling user space applications
    was already removed in gcc-4.9, and the kernel support for old
    applications could not be built with clang ias. After confirming
    that there are no remaining users, removing this from the kernel
    seemed better than adding support for unused features to clang.
 
 There are minor updates to the aspeed, omap and samsung platforms
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'soc-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC updates from Arnd Bergmann:
 "There are three noteworthy updates for 32-bit arm platforms this time:

   - The Microchip SAMA7 family based on Cortex-A7 gets introduced, a
     new cousin to the older SAM9 (ARM9xx based) and SAMA5 (Cortex-A5
     based) SoCs.

   - The ixp4xx platform (based on Intel XScale) is finally converted to
     device tree, and all the old board files are getting removed now.

   - The Cirrus Logic EP93xx platform loses support for the old
     MaverickCrunch FPU. Support for compiling user space applications
     was already removed in gcc-4.9, and the kernel support for old
     applications could not be built with clang ias. After confirming
     that there are no remaining users, removing this from the kernel
     seemed better than adding support for unused features to clang.

  There are minor updates to the aspeed, omap and samsung platforms"

* tag 'soc-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits)
  soc: aspeed-lpc-ctrl: Fix clock cleanup in error path
  ARM: s3c: delete unneed local variable "delay"
  soc: aspeed: Re-enable FWH2AHB on AST2600
  soc: aspeed: socinfo: Add AST2625 variant
  soc: aspeed: p2a-ctrl: Fix boundary check for mmap
  soc: aspeed: lpc-ctrl: Fix boundary check for mmap
  ARM: ixp4xx: Delete the Freecom FSG-3 boardfiles
  ARM: ixp4xx: Delete GTWX5715 board files
  ARM: ixp4xx: Delete Coyote and IXDPG425 boardfiles
  ARM: ixp4xx: Delete Intel reference design boardfiles
  ARM: ixp4xx: Delete Avila boardfiles
  ARM: ixp4xx: Delete the Arcom Vulcan boardfiles
  ARM: ixp4xx: Delete Gateway WG302v2 boardfiles
  ARM: ixp4xx: Delete Omicron boardfiles
  ARM: ixp4xx: Delete the D-Link DSM-G600 boardfiles
  ARM: ixp4xx: Delete NAS100D boardfiles
  ARM: ixp4xx: Delete NSLU2 boardfiles
  arm: omap2: Drop the unused OMAP_PACKAGE_* KConfig entries
  arm: omap2: Drop obsolete MACH_OMAP3_PANDORA entry
  ARM: ep93xx: remove MaverickCrunch support
  ...
2021-09-01 15:19:43 -07:00