user/sven/linux.git/include/uapi/linux/devlink.h, branch v6.16.1

devlink: define enum for attr types of dynamic attributes

2025-05-07T01:21:11Z

Devlink param and health reporter fmsg use attributes with dynamic type which is determined according to a different type. Currently used values are NLA_*. The problem is, they are not part of UAPI. They may change which would cause a break. To make this future safe, introduce a enum that shadows NLA_* values in it and is part of UAPI. Also, this allows to possibly carry types that are unrelated to NLA_* values. Signed-off-by: Saeed Mahameed Signed-off-by: Jiri Pirko Link: https://patch.msgid.link/20250505114513.53370-3-jiri@resnulli.us Signed-off-by: Jakub Kicinski

devlink: Support setting max_io_eqs

2024-04-08T13:10:45Z

Many devices send event notifications for the IO queues, such as tx and rx queues, through event queues. Enable a privileged owner, such as a hypervisor PF, to set the number of IO event queues for the VF and SF during the provisioning stage. example: Get maximum IO event queues of the VF device:: $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 ipsec_packet disabled max_io_eqs 10 Set maximum IO event queues of the VF device:: $ devlink port function set pci/0000:06:00.0/2 max_io_eqs 32 $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 ipsec_packet disabled max_io_eqs 32 Reviewed-by: Jiri Pirko Reviewed-by: Shay Drory Signed-off-by: Parav Pandit Signed-off-by: David S. Miller

devlink: Add comments to use netlink gen tool

2024-03-11T23:00:16Z

Add the comment to remind people not to manually modify the net/devlink/netlink_gen.c, but to use tools/net/ynl/ynl-regen.sh to generate it. Signed-off-by: William Tu Suggested-by: Jiri Pirko Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20240310145503.32721-1-witu@nvidia.com Signed-off-by: Jakub Kicinski

devlink: add a command to set notification filter and use it for multicasts

2023-12-19T14:31:40Z

Currently the user listening on a socket for devlink notifications gets always all messages for all existing instances, even if he is interested only in one of those. That may cause unnecessary overhead on setups with thousands of instances present. User is currently able to narrow down the devlink objects replies to dump commands by specifying select attributes. Allow similar approach for notifications. Introduce a new devlink NOTIFY_FILTER_SET which the user passes the select attributes. Store these per-socket and use them for filtering messages during multicast send. Signed-off-by: Jiri Pirko Signed-off-by: Paolo Abeni

devlink: make devlink_flash_overwrite enum named one

2023-10-23T23:12:46Z

Since this enum is going to be used in generated userspace file, name it properly. Signed-off-by: Jiri Pirko Reviewed-by: Jacob Keller Link: https://lore.kernel.org/r/20231021112711.660606-7-jiri@resnulli.us Signed-off-by: Jakub Kicinski

devlink: expose peer SF devlink instance

2023-09-17T13:01:47Z

Introduce a new helper devl_port_fn_devlink_set() to be used by driver assigning a devlink instance to the peer devlink port function. Expose this to user over new netlink attribute nested under port function nest to expose devlink handle related to the port function. This is particularly helpful for user to understand the relationship between devlink instances created for SFs and the port functions they belong to. Note that caller of devlink_port_notify() needs to hold devlink instance lock, put the assertion to devl_port_fn_devlink_set() to make this requirement explicit. Also note the limitations that only allow to make this assignment for registered objects. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

devlink: Expose port function commands to control IPsec packet offloads

2023-08-28T00:08:45Z

Expose port function commands to enable / disable IPsec packet offloads, this is used to control the port IPsec capabilities. When IPsec packet is disabled for a function of the port (default), function cannot offload IPsec packet operations (encapsulation and XFRM policy offload). When enabled, IPsec packet operations can be offloaded by the function of the port, which includes crypto operation (Encrypt/Decrypt), IPsec encapsulation and XFRM state and policy offload. Example of a PCI VF port which supports IPsec packet offloads: $ devlink port show pci/0000:06:00.0/1 pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0 function: hw_addr 00:00:00:00:00:00 roce enable ipsec_packet disable $ devlink port function set pci/0000:06:00.0/1 ipsec_packet enable $ devlink port show pci/0000:06:00.0/1 pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0 function: hw_addr 00:00:00:00:00:00 roce enable ipsec_packet enable Signed-off-by: Dima Chumak Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20230825062836.103744-3-saeed@kernel.org Signed-off-by: Jakub Kicinski

devlink: Expose port function commands to control IPsec crypto offloads

2023-08-28T00:08:44Z

Expose port function commands to enable / disable IPsec crypto offloads, this is used to control the port IPsec capabilities. When IPsec crypto is disabled for a function of the port (default), function cannot offload any IPsec crypto operations (Encrypt/Decrypt and XFRM state offloading). When enabled, IPsec crypto operations can be offloaded by the function of the port. Example of a PCI VF port which supports IPsec crypto offloads: $ devlink port show pci/0000:06:00.0/1 pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0 function: hw_addr 00:00:00:00:00:00 roce enable ipsec_crypto disable $ devlink port function set pci/0000:06:00.0/1 ipsec_crypto enable $ devlink port show pci/0000:06:00.0/1 pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0 function: hw_addr 00:00:00:00:00:00 roce enable ipsec_crypto enable Signed-off-by: Dima Chumak Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20230825062836.103744-2-saeed@kernel.org Signed-off-by: Jakub Kicinski

devlink: Expose port function commands to control migratable

2022-12-08T04:09:18Z

Expose port function commands to enable / disable migratable capability, this is used to set the port function as migratable. Live migration is the process of transferring a live virtual machine from one physical host to another without disrupting its normal operation. In order for a VM to be able to perform LM, all the VM components must be able to perform migration. e.g.: to be migratable. In order for VF to be migratable, VF must be bound to VFIO driver with migration support. When migratable capability is enabled for a function of the port, the device is making the necessary preparations for the function to be migratable, which might include disabling features which cannot be migrated. Example of LM with migratable function configuration: Set migratable of the VF's port function. $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 migratable disable $ devlink port function set pci/0000:06:00.0/2 migratable enable $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 migratable enable Bind VF to VFIO driver with migration support: $ echo > /sys/bus/pci/devices/0000:08:00.0/driver/unbind $ echo mlx5_vfio_pci > /sys/bus/pci/devices/0000:08:00.0/driver_override $ echo > /sys/bus/pci/devices/0000:08:00.0/driver/bind Attach VF to the VM. Start the VM. Perform LM. Signed-off-by: Shay Drory Reviewed-by: Jiri Pirko Acked-by: Shannon Nelson Signed-off-by: Jakub Kicinski

devlink: Expose port function commands to control RoCE

2022-12-08T04:09:18Z

Expose port function commands to enable / disable RoCE, this is used to control the port RoCE device capabilities. When RoCE is disabled for a function of the port, function cannot create any RoCE specific resources (e.g GID table). It also saves system memory utilization. For example disabling RoCE enable a VF/SF saves 1 Mbytes of system memory per function. Example of a PCI VF port which supports function configuration: Set RoCE of the VF's port function. $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 roce enable $ devlink port function set pci/0000:06:00.0/2 roce disable $ devlink port show pci/0000:06:00.0/2 pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1 function: hw_addr 00:00:00:00:00:00 roce disable Signed-off-by: Shay Drory Reviewed-by: Jiri Pirko Signed-off-by: Jakub Kicinski