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netdev: add io_uring memory provider info

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Add a nested attribute for io_uring memory provider info. For now it is
empty and its presence indicates that a particular page pool or queue
has an io_uring memory provider attached.

$ ./cli.py --spec netlink/specs/netdev.yaml --dump page-pool-get
[{'id': 80,
  'ifindex': 2,
  'inflight': 64,
  'inflight-mem': 262144,
  'napi-id': 525},
 {'id': 79,
  'ifindex': 2,
  'inflight': 320,
  'inflight-mem': 1310720,
  'io_uring': {},
  'napi-id': 525},
...

$ ./cli.py --spec netlink/specs/netdev.yaml --dump queue-get
[{'id': 0, 'ifindex': 1, 'type': 'rx'},
 {'id': 0, 'ifindex': 1, 'type': 'tx'},
 {'id': 0, 'ifindex': 2, 'napi-id': 513, 'type': 'rx'},
 {'id': 1, 'ifindex': 2, 'napi-id': 514, 'type': 'rx'},
...
 {'id': 12, 'ifindex': 2, 'io_uring': {}, 'napi-id': 525, 'type': 'rx'},
...

Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Link: https://patch.msgid.link/20250204215622.695511-6-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
David Wei 2025-02-04 13:56:16 -08:00 committed by Jakub Kicinski
parent 57afb48301
commit dcc0113acd
3 changed files with 29 additions and 0 deletions
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15
Documentation/netlink/specs/netdev.yaml
View File

@ -114,6 +114,9 @@ attribute-sets:
doc: Bitmask of enabled AF_XDP features.
type: u64
enum: xsk-flags
-
name: io-uring-provider-info
attributes: []
-
name: page-pool
attributes:
@ -171,6 +174,11 @@ attribute-sets:
name: dmabuf
doc: ID of the dmabuf this page-pool is attached to.
type: u32
-
name: io-uring
doc: io-uring memory provider information.
type: nest
nested-attributes: io-uring-provider-info
-
name: page-pool-info
subset-of: page-pool
@ -296,6 +304,11 @@ attribute-sets:
name: dmabuf
doc: ID of the dmabuf attached to this queue, if any.
type: u32
-
name: io-uring
doc: io_uring memory provider information.
type: nest
nested-attributes: io-uring-provider-info
-
name: qstats
@ -572,6 +585,7 @@ operations:
- inflight-mem
- detach-time
- dmabuf
- io-uring
dump:
reply: *pp-reply
config-cond: page-pool
@ -637,6 +651,7 @@ operations:
- napi-id
- ifindex
- dmabuf
- io-uring
dump:
request:
attributes:

7
include/uapi/linux/netdev.h
View File

@ -86,6 +86,11 @@ enum {
NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1)
};
enum {
__NETDEV_A_IO_URING_PROVIDER_INFO_MAX,
NETDEV_A_IO_URING_PROVIDER_INFO_MAX = (__NETDEV_A_IO_URING_PROVIDER_INFO_MAX - 1)
};
enum {
NETDEV_A_PAGE_POOL_ID = 1,
NETDEV_A_PAGE_POOL_IFINDEX,
@ -94,6 +99,7 @@ enum {
NETDEV_A_PAGE_POOL_INFLIGHT_MEM,
NETDEV_A_PAGE_POOL_DETACH_TIME,
NETDEV_A_PAGE_POOL_DMABUF,
NETDEV_A_PAGE_POOL_IO_URING,
__NETDEV_A_PAGE_POOL_MAX,
NETDEV_A_PAGE_POOL_MAX = (__NETDEV_A_PAGE_POOL_MAX - 1)
@ -136,6 +142,7 @@ enum {
NETDEV_A_QUEUE_TYPE,
NETDEV_A_QUEUE_NAPI_ID,
NETDEV_A_QUEUE_DMABUF,
NETDEV_A_QUEUE_IO_URING,
__NETDEV_A_QUEUE_MAX,
NETDEV_A_QUEUE_MAX = (__NETDEV_A_QUEUE_MAX - 1)

7
tools/include/uapi/linux/netdev.h
View File

@ -86,6 +86,11 @@ enum {
NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1)
};
enum {
__NETDEV_A_IO_URING_PROVIDER_INFO_MAX,
NETDEV_A_IO_URING_PROVIDER_INFO_MAX = (__NETDEV_A_IO_URING_PROVIDER_INFO_MAX - 1)
};
enum {
NETDEV_A_PAGE_POOL_ID = 1,
NETDEV_A_PAGE_POOL_IFINDEX,
@ -94,6 +99,7 @@ enum {
NETDEV_A_PAGE_POOL_INFLIGHT_MEM,
NETDEV_A_PAGE_POOL_DETACH_TIME,
NETDEV_A_PAGE_POOL_DMABUF,
NETDEV_A_PAGE_POOL_IO_URING,
__NETDEV_A_PAGE_POOL_MAX,
NETDEV_A_PAGE_POOL_MAX = (__NETDEV_A_PAGE_POOL_MAX - 1)
@ -136,6 +142,7 @@ enum {
NETDEV_A_QUEUE_TYPE,
NETDEV_A_QUEUE_NAPI_ID,
NETDEV_A_QUEUE_DMABUF,
NETDEV_A_QUEUE_IO_URING,
__NETDEV_A_QUEUE_MAX,
NETDEV_A_QUEUE_MAX = (__NETDEV_A_QUEUE_MAX - 1)