Changes in Makefile

a4a508df2aa34f8650afde54ea804321c618f45f - Merge tag 'v6.18' into next

Sat, 13 Dec 2025 09:18:20 +0000

Merge tag 'v6.18' into nextSync up with the mainline to bring in the latest APIs. List of files: /linux/drivers/dibs/Makefile

2ace52718376fdb56aca863da2eebe70d7e2ddb1 - Merge branch 'objtool/core'

Fri, 21 Nov 2025 10:21:20 +0000

Merge branch 'objtool/core'Bring in the UDB and objtool data annotations to avoid conflicts while further extending the bug exceptions.Signed-off-by: Peter Zijlstra List of files: /linux/drivers/dibs/Makefile

f39b6c468c52745dbca9a842d91c8373fda208ab - Merge tag 'v6.18-rc6' into for-linus

Tue, 18 Nov 2025 07:16:55 +0000

Merge tag 'v6.18-rc6' into for-linusSync up with the mainline to bring in definition ofINPUT_PROP_HAPTIC_TOUCHPAD. List of files: /linux/drivers/dibs/Makefile

cb9f145f638d7afa633632a9290d6ad06caeb8ee - Merge remote-tracking branch 'drm/drm-next' into msm-next-robclark

Sat, 01 Nov 2025 12:47:30 +0000

Merge remote-tracking branch 'drm/drm-next' into msm-next-robclarkBack-merge drm-next to get caught up.Signed-off-by: Rob Clark List of files: /linux/drivers/dibs/Makefile

ec2e0fb07d789976c601bec19ecced7a501c3705 - Merge tag 'asoc-fix-v6.18-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Thu, 16 Oct 2025 18:14:24 +0000

Merge tag 'asoc-fix-v6.18-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v6.18A moderately large collection of driver specific fixes, plus a few newquirks and device IDs. The NAU8821 changes are a little large but morein mechanical ways than in ways that are complex. List of files: /linux/drivers/dibs/Makefile

82ee50252dc891e3f3b32d923bb4f656d300b772 - Merge drm/drm-next into drm-xe-next

Tue, 14 Oct 2025 09:31:49 +0000

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.18-rc1.Signed-off-by: Thomas Hellström List of files: /linux/drivers/dibs/Makefile

48a710760e10a4f36e11233a21860796ba204b1e - Merge drm/drm-fixes into drm-misc-fixes

Tue, 14 Oct 2025 08:59:58 +0000

Merge drm/drm-fixes into drm-misc-fixesUpdating drm-misc-fixes to the state of v6.18-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/drivers/dibs/Makefile

2acee98fcc61052d63fab4539fcb6ee677555645 - Merge drm/drm-next into drm-intel-next

Tue, 14 Oct 2025 07:37:11 +0000

Merge drm/drm-next into drm-intel-nextSync to v6.18-rc1.Signed-off-by: Jani Nikula List of files: /linux/drivers/dibs/Makefile

4f38da1f027ea2c9f01bb71daa7a299c191b6940 - spi: Merge up v6.18-rc1

Mon, 13 Oct 2025 12:32:13 +0000

spi: Merge up v6.18-rc1Ensure my CI has a sensible baseline. List of files: /linux/drivers/dibs/Makefile

9b966ae42235a88eaea714be09ff3d698535bdfe - Merge drm/drm-next into drm-misc-next

Mon, 13 Oct 2025 07:19:19 +0000

Merge drm/drm-next into drm-misc-nextUpdating drm-misc-next to the state of v6.18-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/drivers/dibs/Makefile

07fdad3a93756b872da7b53647715c48d0f4a2d0 - Merge tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Thu, 02 Oct 2025 22:17:01 +0000

Merge tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextPull networking updates from Paolo Abeni: "Core & protocols: - Improve drop account scalability on NUMA hosts for RAW and UDP sockets and the backlog, almost doubling the Pps capacity under DoS - Optimize the UDP RX performance under stress, reducing contention, revisiting the binary layout of the involved data structs and implementing NUMA-aware locking. This improves UDP RX performance by an additional 50%, even more under extreme conditions - Add support for PSP encryption of TCP connections; this mechanism has some similarities with IPsec and TLS, but offers superior HW offloads capabilities - Ongoing work to support Accurate ECN for TCP. AccECN allows more than one congestion notification signal per RTT and is a building block for Low Latency, Low Loss, and Scalable Throughput (L4S) - Reorganize the TCP socket binary layout for data locality, reducing the number of touched cachelines in the fastpath - Refactor skb deferral free to better scale on large multi-NUMA hosts, this improves TCP and UDP RX performances significantly on such HW - Increase the default socket memory buffer limits from 256K to 4M to better fit modern link speeds - Improve handling of setups with a large number of nexthop, making dump operating scaling linearly and avoiding unneeded synchronize_rcu() on delete - Improve bridge handling of VLAN FDB, storing a single entry per bridge instead of one entry per port; this makes the dump order of magnitude faster on large switches - Restore IP ID correctly for encapsulated packets at GSO segmentation time, allowing GRO to merge packets in more scenarios - Improve netfilter matching performance on large sets - Improve MPTCP receive path performance by leveraging recently introduced core infrastructure (skb deferral free) and adopting recent TCP autotuning changes - Allow bridges to redirect to a backup port when the bridge port is administratively down - Introduce MPTCP 'laminar' endpoint that con be used only once per connection and simplify common MPTCP setups - Add RCU safety to dst->dev, closing a lot of possible races - A significant crypto library API for SCTP, MPTCP and IPv6 SR, reducing code duplication - Supports pulling data from an skb frag into the linear area of an XDP buffer Things we sprinkled into general kernel code: - Generate netlink documentation from YAML using an integrated YAML parser Driver API: - Support using IPv6 Flow Label in Rx hash computation and RSS queue selection - Introduce API for fetching the DMA device for a given queue, allowing TCP zerocopy RX on more H/W setups - Make XDP helpers compatible with unreadable memory, allowing more easily building DevMem-enabled drivers with a unified XDP/skbs datapath - Add a new dedicated ethtool callback enabling drivers to provide the number of RX rings directly, improving efficiency and clarity in RX ring queries and RSS configuration - Introduce a burst period for the health reporter, allowing better handling of multiple errors due to the same root cause - Support for DPLL phase offset exponential moving average, controlling the average smoothing factor Device drivers: - Add a new Huawei driver for 3rd gen NIC (hinic3) - Add a new SpacemiT driver for K1 ethernet MAC - Add a generic abstraction for shared memory communication devices (dibps) - Ethernet high-speed NICs: - nVidia/Mellanox: - Use multiple per-queue doorbell, to avoid MMIO contention issues - support adjacent functions, allowing them to delegate their SR-IOV VFs to sibling PFs - support RSS for IPSec offload - support exposing raw cycle counters in PTP and mlx5 - support for disabling host PFs. - Intel (100G, ice, idpf): - ice: support for SRIOV VFs over an Active-Active link aggregate - ice: support for firmware logging via debugfs - ice: support for Earliest TxTime First (ETF) hardware offload - idpf: support basic XDP functionalities and XSk - Broadcom (bnxt): - support Hyper-V VF ID - dynamic SRIOV resource allocations for RoCE - Meta (fbnic): - support queue API, zero-copy Rx and Tx - support basic XDP functionalities - devlink health support for FW crashes and OTP mem corruptions - expand hardware stats coverage to FEC, PHY, and Pause - Wangxun: - support ethtool coalesce options - support for multiple RSS contexts - Ethernet virtual: - Macsec: - replace custom netlink attribute checks with policy-level checks - Bonding: - support aggregator selection based on port priority - Microsoft vNIC: - use page pool fragments for RX buffers instead of full pages to improve memory efficiency - Ethernet NICs consumer, and embedded: - Qualcomm: support Ethernet function for IPQ9574 SoC - Airoha: implement wlan offloading via NPU - Freescale - enetc: add NETC timer PTP driver and add PTP support - fec: enable the Jumbo frame support for i.MX8QM - Renesas (R-Car S4): - support HW offloading for layer 2 switching - support for RZ/{T2H, N2H} SoCs - Cadence (macb): support TAPRIO traffic scheduling - TI: - support for Gigabit ICSS ethernet SoC (icssm-prueth) - Synopsys (stmmac): a lot of cleanups - Ethernet PHYs: - Support 10g-qxgmi phy-mode for AQR412C, Felix DSA and Lynx PCS driver - Support bcm63268 GPHY power control - Support for Micrel lan8842 PHY and PTP - Support for Aquantia AQR412 and AQR115 - CAN: - a large CAN-XL preparation work - reorganize raw_sock and uniqframe struct to minimize memory usage - rcar_canfd: update the CAN-FD handling - WiFi: - extended Neighbor Awareness Networking (NAN) support - S1G channel representation cleanup - improve S1G support - WiFi drivers: - Intel (iwlwifi): - major refactor and cleanup - Broadcom (brcm80211): - support for AP isolation - RealTek (rtw88/89) rtw88/89: - preparation work for RTL8922DE support - MediaTek (mt76): - HW restart improvements - MLO support - Qualcomm/Atheros (ath10k): - GTK rekey fixes - Bluetooth drivers: - btusb: support for several new IDs for MT7925 - btintel: support for BlazarIW core - btintel_pcie: support for _suspend() / _resume() - btintel_pcie: support for Scorpious, Panther Lake-H484 IDs"* tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1536 commits) net: stmmac: Add support for Allwinner A523 GMAC200 dt-bindings: net: sun8i-emac: Add A523 GMAC200 compatible Revert "Documentation: net: add flow control guide and document ethtool API" octeontx2-pf: fix bitmap leak octeontx2-vf: fix bitmap leak net/mlx5e: Use extack in set rxfh callback net/mlx5e: Introduce mlx5e_rss_params for RSS configuration net/mlx5e: Introduce mlx5e_rss_init_params net/mlx5e: Remove unused mdev param from RSS indir init net/mlx5: Improve QoS error messages with actual depth values net/mlx5e: Prevent entering switchdev mode with inconsistent netns net/mlx5: HWS, Generalize complex matchers net/mlx5: Improve write-combining test reliability for ARM64 Grace CPUs selftests/net: add tcp_port_share to .gitignore Revert "net/mlx5e: Update and set Xon/Xoff upon MTU set" net: add NUMA awareness to skb_attempt_defer_free() net: use llist for sd->defer_list net: make softnet_data.defer_count an atomic selftests: drv-net: psp: add tests for destroying devices selftests: drv-net: psp: add test for auto-adjusting TCP MSS ... List of files: /linux/drivers/dibs/Makefile

df1526752e0cd8db11b1fd4c1be3bd47409fd3ac - Merge branch 'dibs-direct-internal-buffer-sharing'

Tue, 23 Sep 2025 09:13:24 +0000

Merge branch 'dibs-direct-internal-buffer-sharing'Alexandra Winter says:====================dibs - Direct Internal Buffer SharingThis series introduces a generic abstraction of existing components like:- the s390 specific ISM device (Internal Shared Memory),- the SMC-D loopback mechanism (Shared Memory Communication - Direct)- the client interface of the SMC-D module to the transport devicesThis generic shim layer can be extended with more devices, more clients andmore features in the future.This layer is called 'dibs' for Direct Internal Buffer Sharing based on thecommon scheme that these mechanisms enable controlled sharing of memorybuffers within some containing entity such as a hypervisor or a Linuxinstance.Benefits:- Cleaner separation of ISM and SMC-D functionality- simpler and less module dependencies- Clear interface definition.- Extendable for future devices and clients.An overview was given at the Netdev 0x19 conference, recordings and slidesare available [1].Background / Status quo:------------------------Currently s390 hardware provides virtual PCI ISM devices (Internal SharedMemory). Their driver is in drivers/s390/net/ism_drv.c. The main user isSMC-D (net/smc). The ism driver offers a client interface so otherusers/protocols can also use them, but it is still heavily intermingledwith the smc code. Namely, the ism module cannot be used without the smcmodule, which feels artificial.There is ongoing work to extend the ISM concept of shared buffers that canbe accessed directly by another instance on the same hardware: [2] proposeda loopback interface (ism_lo), that can be used on non-s390 architectures(e.g. between containers or to test SMC-D). A minimal implementation wentupstream with [3]: ism_lo currently is a part of the smc protocol andrather hidden.[4] proposed a virtio definition of ism (ism_virtio) that can be usedbetween kvm guests.We will shortly send an RFC for an dibs client that uses dibs as transportfor TTY.Concept:--------Create a shim layer in net/dibs that contains common definitions and codefor all dibs devices and all dibs clients. Any device or client module onlyneeds to depend on this dibs layer module and any device or client codeonly needs to include the definitions in include/linux/dibs.h.The name dibs was chosen to clearly distinguish it from the existing s390ism devices. And to emphasize that it is not about sharing whole memoryregions with anybody, but dedicating single buffers for another system.Implementation:---------------The end result of this series is: A dibs shim layer with- One dibs client: smc-d- Two dibs device drivers: ism and dibs-loopback- Everything prepared to add more clients and more device drivers.Patches 1-2 contain some issues that were found along the way. They makesense on their own, but also enable a better structured dibs series.There are three components that exist today:a) smc module (especially SMC-D functionality, which is an ism client today)b) ism device driver (supports multiple ism clients today)c) smc-loopback (integrated with smc today)In order to preserve existing functionality at each step, these are notmoved to dibs layer by component, instead:- the dibs layer is established in parallel to existing code [patches 3-6]- then some service functions are moved to the dibs layer [patches 7-12]- the actual data movement is moved to the dibs layer [patch 13]- and last event handling is moved to the dibs layer [patch 14]Future:-------Items that are not part of this patchset but can be added later:- dynamically add or remove dibs_loopback. That will be allow for simple testing of add_dev()/del_dev()- handle_irq(): Call clients without interrupt context. e.g using threaded interrupts. I left this for a follow-on, because it includes conceptual changes for the smcd receive code.- Any improvements of locking scopes. I mainly moved some of the the existing locks to dibs layer. I have the feeling there is room for improvements.- The device drivers should not loop through the client array- dibs_dev_op.*_dmb() functions reveal unnecessary details of the internal dmb struct to the clients- Check whether client calls to dibs_dev_ops should be replaced by interface functions that provide additional value- Check whether device driver calls to dibs_client_ops should be replaced by interface functions that provide additional value.Link: [1] https://netdevconf.info/0x19/sessions/talk/communication-via-internal-shared-memory-ism-time-to-open-up.htmlLink: [2] https://lore.kernel.org/netdev/1695568613-125057-1-git-send-email-guwen@linux.alibaba.com/Link: [3] https://lore.kernel.org/linux-kernel//20240428060738.60843-1-guwen@linux.alibaba.com/Link: [4] https://groups.oasis-open.org/communities/community-home/digestviewer/viewthread?GroupId=3973&MessageKey=c060ecf9-ea1a-49a2-9827-c92f0e6447b2&CommunityKey=2f26be99-3aa1-48f6-93a5-018dce262226&hlmlt=VT====================Link: https://patch.msgid.link/20250918110500.1731261-1-wintera@linux.ibm.comSigned-off-by: Paolo Abeni List of files: /linux/drivers/dibs/Makefile

cb990a45d7f6eb6dc495d2226a3005b284a5ee4f - dibs: Define dibs loopback

Thu, 18 Sep 2025 11:04:52 +0000

dibs: Define dibs loopbackThe first stage of loopback-ism was implemented as part of theSMC module [1]. Now that we have the dibs layer, provide access to adibs_loopback device to all dibs clients.This is the first step of moving loopback-ism from net/smc/smc_loopback.*to drivers/dibs/dibs_loopback.*. One global structure lo_dev is allocatedand added to the dibs devices. Follow-on patches will move functionality.Same as smc_loopback, dibs_loopback is provided by a config option.Note that there is no way to dynamically add or remove the loopbackdevice. That could be a future improvement.When moving code to drivers/dibs, replace ism_ prefix with dibs_ prefix.As this is mostly a move of existing code, copyright and authors areunchanged.Link: https://lore.kernel.org/lkml/20240428060738.60843-1-guwen@linux.alibaba.com/ [1]Signed-off-by: Alexandra Winter Link: https://patch.msgid.link/20250918110500.1731261-7-wintera@linux.ibm.comSigned-off-by: Paolo Abeni List of files: /linux/drivers/dibs/Makefile

35758b0032c056cdff3e8f5a70669cb3e2c8d0e4 - dibs: Create drivers/dibs

Thu, 18 Sep 2025 11:04:49 +0000

dibs: Create drivers/dibsCreate the file structure for a 'DIBS - Direct Internal Buffer Sharing'shim layer that will provide generic functionality and declarations fordibs device drivers and dibs clients.Following patches will add functionality.Signed-off-by: Alexandra Winter Link: https://patch.msgid.link/20250918110500.1731261-4-wintera@linux.ibm.comSigned-off-by: Paolo Abeni List of files: /linux/drivers/dibs/Makefile