kernel/linux.git/net/devlink/port.c, branch v6.12.80

devlink: Support setting max_io_eqs

2024-04-08T13:10:45+00:00

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: fix port new reply cmd type

2024-03-20T02:37:57+00:00

Due to a c&p error, port new reply fills-up cmd with wrong value, any other existing port command replies and notifications. Fix it by filling cmd with value DEVLINK_CMD_PORT_NEW. Skimmed through devlink userspace implementations, none of them cares about this cmd value. Reported-by: Chenyuan Yang Closes: https://lore.kernel.org/all/ZfZcDxGV3tSy4qsV@cy-server/ Fixes: cd76dcd68d96 ("devlink: Support add and delete devlink port") Signed-off-by: Jiri Pirko Reviewed-by: Parav Pandit Reviewed-by: Kalesh AP Link: https://lore.kernel.org/r/20240318091908.2736542-1-jiri@resnulli.us Signed-off-by: Jakub Kicinski

devlink: fix port dump cmd type

2024-02-22T01:11:04+00:00

Unlike other commands, due to a c&p error, port dump fills-up cmd with wrong value, different from port-get request cmd, port-get doit reply and port notification. Fix it by filling cmd with value DEVLINK_CMD_PORT_NEW. Skimmed through devlink userspace implementations, none of them cares about this cmd value. Only ynl, for which, this is actually a fix, as it expects doit and dumpit ops rsp_value to be the same. Omit the fixes tag, even thought this is fix, better to target this for next release. Fixes: bfcd3a466172 ("Introduce devlink infrastructure") Signed-off-by: Jiri Pirko Reviewed-by: Simon Horman Reviewed-by: Jakub Kicinski Link: https://lore.kernel.org/r/20240220075245.75416-1-jiri@resnulli.us Signed-off-by: Jakub Kicinski

devlink: Fix referring to hw_addr attribute during state validation

2024-01-31T02:32:41+00:00

When port function state change is requested, and when the driver does not support it, it refers to the hw address attribute instead of state attribute. Seems like a copy paste error. Fix it by referring to the port function state attribute. Fixes: c0bea69d1ca7 ("devlink: Validate port function request") Signed-off-by: Parav Pandit Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20240129191059.129030-1-parav@nvidia.com Signed-off-by: Jakub Kicinski

devlink: extend multicast filtering by port index

2023-12-19T14:31:40+00:00

Expose the previously introduced notification multicast messages filtering infrastructure and allow the user to select messages using port index. Signed-off-by: Jiri Pirko Signed-off-by: Paolo Abeni

devlink: introduce a helper for netlink multicast send

2023-12-19T14:31:40+00:00

Introduce a helper devlink_nl_notify_send() so each object notification function does not have to call genlmsg_multicast_netns() with the same arguments. Signed-off-by: Jiri Pirko Signed-off-by: Paolo Abeni

devlink: send notifications only if there are listeners

2023-12-19T14:31:40+00:00

Introduce devlink_nl_notify_need() helper and using it to check at the beginning of notification functions to avoid overhead of composing notification messages in case nobody listens. Signed-off-by: Jiri Pirko Signed-off-by: Paolo Abeni

devlink: introduce __devl_is_registered() helper and use it instead of xa_get_mark()

2023-12-19T14:31:40+00:00

Introduce __devl_is_registered() which does not assert on devlink instance lock and use it in notifications which may be called without devlink instance lock held. Signed-off-by: Jiri Pirko Signed-off-by: Paolo Abeni

devlink: rename netlink callback to be aligned with the generated ones

2023-10-23T23:12:47+00:00

All remaining doit and dumpit netlink callback functions are going to be used by generated split ops. They expect certain name format. Rename the callback to be aligned with generated names. Signed-off-by: Jiri Pirko Reviewed-by: Jacob Keller Link: https://lore.kernel.org/r/20231021112711.660606-8-jiri@resnulli.us Signed-off-by: Jakub Kicinski

devlink: expose peer SF devlink instance

2023-09-17T13:01:47+00:00

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