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net: page_pool: add nlspec for basic access to page pools
Add a Netlink spec in YAML for getting very basic information about page pools. Reviewed-by: Eric Dumazet <edumazet@google.com> Acked-by: Jesper Dangaard Brouer <hawk@kernel.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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@ -86,6 +86,34 @@ attribute-sets:
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See Documentation/networking/xdp-rx-metadata.rst for more details.
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type: u64
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enum: xdp-rx-metadata
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-
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name: page-pool
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attributes:
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-
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name: id
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doc: Unique ID of a Page Pool instance.
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type: uint
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checks:
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min: 1
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max: u32-max
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-
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name: ifindex
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doc: |
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ifindex of the netdev to which the pool belongs.
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May be reported as 0 if the page pool was allocated for a netdev
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which got destroyed already (page pools may outlast their netdevs
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because they wait for all memory to be returned).
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type: u32
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checks:
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min: 1
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max: s32-max
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-
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name: napi-id
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doc: Id of NAPI using this Page Pool instance.
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type: uint
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checks:
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min: 1
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max: u32-max
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operations:
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list:
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@ -120,6 +148,24 @@ operations:
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doc: Notification about device configuration being changed.
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notify: dev-get
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mcgrp: mgmt
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-
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name: page-pool-get
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doc: |
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Get / dump information about Page Pools.
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(Only Page Pools associated with a net_device can be listed.)
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attribute-set: page-pool
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do:
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request:
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attributes:
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- id
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reply: &pp-reply
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attributes:
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- id
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- ifindex
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- napi-id
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dump:
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reply: *pp-reply
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config-cond: page-pool
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mcast-groups:
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list:
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