Changes in Kconfig

de6c85bf - dma-mapping: clearly mark DMA ops as an architecture feature

Wed, 28 Aug 2024 06:02:47 +0000

dma-mapping: clearly mark DMA ops as an architecture featureDMA ops are a helper for architectures and not for drivers to overridethe DMA implementation.Unfortunately driver authors keep ignoring this. Make the fact moreclear by renaming the symbol to ARCH_HAS_DMA_OPS and having the two driversoverriding their dma_ops depend on that. These drivers should probably bemarked broken, but we can give them a bit of a grace period for that.Signed-off-by: Christoph Hellwig Reviewed-by: Thomas Gleixner Acked-by: Sakari Ailus # for IPU6Acked-by: Robin Murphy List of files: /linux-6.15/drivers/vdpa/Kconfig

92193b35 - vdpa_sim: don't select DMA_OPS

Wed, 28 Aug 2024 06:00:08 +0000

vdpa_sim: don't select DMA_OPSvdpa_sim has been fixed to not override the dma_map_ops in commit6c3d329e6486 ("vdpa_sim: get rid of DMA ops"), so don't select thesymbol and don't depend on HAS_DMA.Signed-off-by: Christoph Hellwig Acked-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

8b6c724c - virtio: vdpa: vDPA driver for Marvell OCTEON DPU devices

Fri, 14 Jun 2024 14:46:59 +0000

virtio: vdpa: vDPA driver for Marvell OCTEON DPU devicesThis commit introduces a new vDPA driver specifically designed formanaging the virtio control plane over the vDPA bus for OCTEON DPUdevices. The driver consists of two layers:1. Octep HW Layer (Octeon Endpoint): Responsible for handling hardwareoperations and configurations related to the DPU device.2. Octep Main Layer: Compliant with the vDPA bus framework, this layerimplements device operations for the vDPA bus. It handles deviceprobing, bus attachment, vring operations, and other relevant tasks.Signed-off-by: Srujana Challa Signed-off-by: Vamsi Attunuru Signed-off-by: Shijith Thotton Signed-off-by: Nithin Dabilpuram Acked-by: Jason Wang Message-Id: <20240614144659.1776067-1-schalla@marvell.com>Signed-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

9a8864d2 - pds_vdpa: pds_vdps.rst and Kconfig

Fri, 19 May 2023 21:56:32 +0000

pds_vdpa: pds_vdps.rst and KconfigAdd the documentation and Kconfig entry for pds_vdpa driver.Signed-off-by: Shannon Nelson Acked-by: Jason Wang Message-Id: <20230519215632.12343-12-shannon.nelson@amd.com>Signed-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

51a8f9d7 - virtio: vdpa: new SolidNET DPU driver.

Tue, 10 Jan 2023 16:56:38 +0000

virtio: vdpa: new SolidNET DPU driver.This commit includes: 1) The driver to manage the controlplane over vDPA bus. 2) A HW monitor device to read health values from the DPU.Signed-off-by: Alvaro Karsz Acked-by: Jason Wang Message-Id: <20230110165638.123745-4-alvaro.karsz@solid-run.com>Message-Id: <20230209075128.78915-1-alvaro.karsz@solid-run.com>Signed-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

0a599750 - vdpa/mlx5: Add RX counters to debugfs

Mon, 14 Nov 2022 13:17:59 +0000

vdpa/mlx5: Add RX counters to debugfsFor each interface, either VLAN tagged or untagged, add two hardwarecounters: one for unicast and another for multicast. The counters countRX packets and bytes and can be read through debugfs:$ cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/mcast/packets$ cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/ucast/bytesThis feature is controlled via the config optionMLX5_VDPA_STEERING_DEBUG. It is off by default as it may have someimpact on performance.includes a fixup By Yang Yingliang :vdpa/mlx5: fix check wrong pointer in mlx5_vdpa_add_mac_vlan_rules()The local variable 'rule' is not used anymore, fix return valuecheck after calling mlx5_add_flow_rules().Signed-off-by: Eli Cohen Message-Id: <20221114131759.57883-9-elic@nvidia.com>Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang Signed-off-by: Yang Yingliang Message-Id: <20230104074418.1737510-1-yangyingliang@huawei.com>Signed-off-by: Michael S. Tsirkin Acked-by: Eli Cohen Acked-by: Jason Wang List of files: /linux-6.15/drivers/vdpa/Kconfig

e85087be - eni_vdpa: add vDPA driver for Alibaba ENI

Fri, 29 Oct 2021 09:14:49 +0000

eni_vdpa: add vDPA driver for Alibaba ENIThis patch adds a new vDPA driver for Alibaba ENI(Elastic NetworkInterface) which is build upon virtio 0.9.5 specification.And this driver is only enabled on X86 host currently.Link: https://lore.kernel.org/r/6a9f32c00609af16bbb2ea32e633b3beb1cbf84b.1635493219.git.wuzongyong@linux.alibaba.comSigned-off-by: Wu Zongyong Link: https://lore.kernel.org/r/20211026083214.3375383-1-arnd@kernel.orgSigned-off-by: Arnd Bergmann # fix Kconfig typoSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

c8a6153b - vduse: Introduce VDUSE - vDPA Device in Userspace

Tue, 31 Aug 2021 10:36:33 +0000

vduse: Introduce VDUSE - vDPA Device in UserspaceThis VDUSE driver enables implementing software-emulated vDPAdevices in userspace. The vDPA device is created byioctl(VDUSE_CREATE_DEV) on /dev/vduse/control. Then a char deviceinterface (/dev/vduse/$NAME) is exported to userspace for deviceemulation.In order to make the device emulation more secure, the device'scontrol path is handled in kernel. A message mechnism is introducedto forward some dataplane related control messages to userspace.And in the data path, the DMA buffer will be mapped into userspaceaddress space through different ways depending on the vDPA bus towhich the vDPA device is attached. In virtio-vdpa case, the MMU-basedsoftware IOTLB is used to achieve that. And in vhost-vdpa case, theDMA buffer is reside in a userspace memory region which can be sharedto the VDUSE userspace processs via transferring the shmfd.For more details on VDUSE design and usage, please see the follow-onDocumentation commit.NB(mst): when merging this withb542e383d8c0 ("eventfd: Make signal recursion protection a task bit")replace eventfd_signal_count with eventfd_signal_allowed,and drop the previous("eventfd: Export eventfd_wake_count to modules").Signed-off-by: Xie Yongji Acked-by: Jason Wang Link: https://lore.kernel.org/r/20210831103634.33-13-xieyongji@bytedance.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

5262912e - vdpa/mlx5: Add support for control VQ and MAC setting

Mon, 23 Aug 2021 05:21:22 +0000

vdpa/mlx5: Add support for control VQ and MAC settingAdd support to handle control virtqueue configurations per virtiospecification. The control virtqueue is implemented in software and nohardware offloading is involved.Control VQ configuration need task context, therefore all configurationsare handled in a workqueue created for the purpose.Modifications are made to the memory registration code to allow forsaving a copy of itolb to be used by the control VQ to access the vring.The max number of data virtqueus supported by the driver has beenupdated to 2 since multiqueue is not supported at this stage and we needto ensure consistency of VQ indices mapping to either data or controlVQ.Signed-off-by: Eli Cohen Link: https://lore.kernel.org/r/20210823052123.14909-6-elic@nvidia.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

0c853c2c - vdpa: add vdpa simulator for block device

Mon, 15 Mar 2021 16:34:47 +0000

vdpa: add vdpa simulator for block deviceThis will allow running vDPA for virtio block protocol.It's a preliminary implementation with a simple request handling:for each request, only the status (last byte) is set.It's always set to VIRTIO_BLK_S_OK.Also input validation is missing and will be added in the next commits.Signed-off-by: Max Gurtovoy [sgarzare: various cleanups/fixes]Acked-by: Jason Wang Signed-off-by: Stefano Garzarella Link: https://lore.kernel.org/r/20210315163450.254396-12-sgarzare@redhat.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

4080fc10 - vdpa_sim: use iova module to allocate IOVA addresses

Mon, 15 Mar 2021 16:34:37 +0000

vdpa_sim: use iova module to allocate IOVA addressesThe identical mapping used until now created issues when mappingdifferent virtual pages with the same physical address.To solve this issue, we can use the iova module, to handle the IOVAallocation.For simplicity we use an IOVA allocator with byte granularity.We add two new functions, vdpasim_map_range() and vdpasim_unmap_range(),to handle the IOVA allocation and the registration into the IOMMU/IOTLB.These functions are used by dma_map_ops callbacks.Acked-by: Jason Wang Signed-off-by: Stefano Garzarella Link: https://lore.kernel.org/r/20210315163450.254396-2-sgarzare@redhat.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

64b9f64f - vdpa: introduce virtio pci driver

Tue, 23 Feb 2021 06:19:05 +0000

vdpa: introduce virtio pci driverThis patch introduce a vDPA driver for virtio-pci device. It bridgesthe virtio-pci control command to the vDPA bus. This will be used forfeatures prototyping and testing.Note that get/restore virtqueue state is not supported which needsextension on the virtio specification.Signed-off-by: Jason Wang Link: https://lore.kernel.org/r/20210223061905.422659-4-jasowang@redhat.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

33b34750 - vdpa: Define vdpa mgmt device, ops and a netlink interface

Tue, 05 Jan 2021 10:32:00 +0000

vdpa: Define vdpa mgmt device, ops and a netlink interfaceTo add one or more VDPA devices, define a management device whichallows adding or removing vdpa device. A management device definesset of callbacks to manage vdpa devices.To begin with, it defines add and remove callbacks through which a userdefined vdpa device can be added or removed.A unique management device is identified by its unique handle identifiedby management device name and optionally the bus name.Hence, introduce routine through which driver can register amanagement device and its callback operations for adding and removea vdpa device.Introduce vdpa netlink socket family so that user can query managementdevice and its attributes.Example of show vdpa management device which allows creating vdpa device ofnetworking class (device id = 0x1) of virtio specification 1.1section 5.1.1.$ vdpa mgmtdev showvdpasim_net: supported_classes: netExample of showing vdpa management device in JSON format.$ vdpa mgmtdev show -jp{ "show": { "vdpasim_net": { "supported_classes": [ "net" ] } }}Signed-off-by: Parav Pandit Reviewed-by: Eli Cohen Reviewed-by: Jason Wang Link: https://lore.kernel.org/r/20210105103203.82508-4-parav@nvidia.comSigned-off-by: Michael S. Tsirkin Including a bugfix:vpda: correctly size vdpa_nl_policyWe need to ensure last entry of vdpa_nl_policy[]is zero, otherwise out-of-bounds access is hurting us.Signed-off-by: Eric Dumazet Reported-by: syzbot Cc: Parav Pandit Cc: Eli Cohen Cc: Jason Wang Cc: Michael S. Tsirkin Link: https://lore.kernel.org/r/20210210134911.4119555-1-eric.dumazet@gmail.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

db1e8bb6 - vdpa: split vdpasim to core and net modules

Tue, 15 Dec 2020 14:42:56 +0000

vdpa: split vdpasim to core and net modulesIntroduce new vdpa_sim_net and vdpa_sim (core) drivers. This is apreparation for adding a vdpa simulator module for block devices.Signed-off-by: Max Gurtovoy [sgarzare: various cleanups/fixes]Acked-by: Jason Wang Signed-off-by: Stefano Garzarella Link: https://lore.kernel.org/r/20201215144256.155342-19-sgarzare@redhat.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

29b90f92 - vdpa: remove unnecessary 'default n' in Kconfig entries

Tue, 15 Dec 2020 14:42:39 +0000

vdpa: remove unnecessary 'default n' in Kconfig entries'default n' is not necessary since it is already the default whennothing is specified.Suggested-by: Jason Wang Acked-by: Jason Wang Signed-off-by: Stefano Garzarella Link: https://lore.kernel.org/r/20201215144256.155342-2-sgarzare@redhat.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

98701a2a - vdpa: mlx5: fix vdpa/vhost dependencies

Sat, 28 Nov 2020 21:39:05 +0000

vdpa: mlx5: fix vdpa/vhost dependenciesdrivers/vdpa/mlx5/ uses vhost_iotlb*() interfaces, so selectVHOST_IOTLB to make them be built.However, if VHOST_IOTLB is the only VHOST symbol that isset/enabled, the object file still won't be built becausedrivers/Makefile won't descend into drivers/vhost/ to build it,so make drivers/Makefile build the needed binary wheneverVHOST_IOTLB is set, like it does for VHOST_RING.Fixes these build errors:ERROR: modpost: "vhost_iotlb_itree_next" [drivers/vdpa/mlx5/mlx5_vdpa.ko] undefined!ERROR: modpost: "vhost_iotlb_itree_first" [drivers/vdpa/mlx5/mlx5_vdpa.ko] undefined!Fixes: 29064bfdabd5 ("vdpa/mlx5: Add support library for mlx5 VDPA implementation")Fixes: aff90770e54c ("vdpa/mlx5: Fix dependency on MLX5_CORE")Reported-by: kernel test robot Signed-off-by: Randy Dunlap Cc: Eli Cohen Cc: Parav Pandit Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: virtualization@lists.linux-foundation.orgCc: Saeed Mahameed Cc: Leon Romanovsky Cc: netdev@vger.kernel.orgLink: https://lore.kernel.org/r/20201128213905.27409-1-rdunlap@infradead.orgSigned-off-by: Michael S. Tsirkin Acked-by: Jason Wang List of files: /linux-6.15/drivers/vdpa/Kconfig

a312db69 - vdpasim: fix "mac_pton" undefined error

Fri, 13 Nov 2020 15:57:06 +0000

vdpasim: fix "mac_pton" undefined error ERROR: modpost: "mac_pton" [drivers/vdpa/vdpa_sim/vdpa_sim.ko] undefined!mac_pton() is defined in lib/net_utils.c and is not built if NET is not set.Select GENERIC_NET_UTILS as vdpasim doesn't depend on NET.Reported-by: kernel test robot Signed-off-by: Laurent Vivier Link: https://lore.kernel.org/r/20201113155706.599434-1-lvivier@redhat.comSigned-off-by: Michael S. Tsirkin Acked-by: Randy Dunlap # build-tested List of files: /linux-6.15/drivers/vdpa/Kconfig

aff90770 - vdpa/mlx5: Fix dependency on MLX5_CORE

Wed, 07 Oct 2020 06:40:11 +0000

vdpa/mlx5: Fix dependency on MLX5_CORERemove propmt for selecting MLX5_VDPA by the user and modifyMLX5_VDPA_NET to select MLX5_VDPA. Also modify MLX5_VDPA_NET to dependon mlx5_core.This fixes an issue where configuration sets 'y' for MLX5_VDPA_NET whileMLX5_CORE is compiled as a module causing link errors.Reported-by: kernel test robot Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5 device")sSigned-off-by: Eli Cohen Link: https://lore.kernel.org/r/20201007064011.GA50074@mtl-vdi-166.wap.labs.mlnxSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig

1a86b377 - vdpa/mlx5: Add VDPA driver for supported mlx5 devices

Tue, 04 Aug 2020 16:20:48 +0000

vdpa/mlx5: Add VDPA driver for supported mlx5 devicesAdd a front end VDPA driver that registers in the VDPA bus and providesnetworking to a guest. The VDPA driver creates the necessary resourceson the VF it is driving such that data path will be offloaded.Notifications are being communicated through the driver.Currently, only VFs are supported. In subsequent patches we will havedevlink support to control which VF is used for VDPA and which functionis used for regular networking.Reviewed-by: Parav Pandit Signed-off-by: Eli Cohen Link: https://lore.kernel.org/r/20200804162048.22587-13-eli@mellanox.comSigned-off-by: Michael S. Tsirkin Acked-by: Jason Wang List of files: /linux-6.15/drivers/vdpa/Kconfig

29064bfd - vdpa/mlx5: Add support library for mlx5 VDPA implementation

Tue, 04 Aug 2020 16:20:46 +0000

vdpa/mlx5: Add support library for mlx5 VDPA implementationFollowing patches introduce VDPA network driver for Mellanox Connectx6devices. This patch provides functionality that will be used by thosepatches.Reviewed-by: Parav Pandit Signed-off-by: Eli Cohen Link: https://lore.kernel.org/r/20200804162048.22587-11-eli@mellanox.comSigned-off-by: Michael S. Tsirkin List of files: /linux-6.15/drivers/vdpa/Kconfig