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Message-ID: <20250108220644.3528845-8-dw@davidwei.uk>
Date: Wed, 8 Jan 2025 14:06:28 -0800
From: David Wei <dw@...idwei.uk>
To: io-uring@...r.kernel.org,
netdev@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>,
Pavel Begunkov <asml.silence@...il.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jesper Dangaard Brouer <hawk@...nel.org>,
David Ahern <dsahern@...nel.org>,
Mina Almasry <almasrymina@...gle.com>,
Stanislav Fomichev <stfomichev@...il.com>,
Joe Damato <jdamato@...tly.com>,
Pedro Tammela <pctammela@...atatu.com>
Subject: [PATCH net-next v10 07/22] netdev: add io_uring memory provider info
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'},
...
Signed-off-by: Pavel Begunkov <asml.silence@...il.com>
Signed-off-by: David Wei <dw@...idwei.uk>
---
Documentation/netlink/specs/netdev.yaml | 15 +++++++++++++++
include/uapi/linux/netdev.h | 8 ++++++++
tools/include/uapi/linux/netdev.h | 8 ++++++++
3 files changed, 31 insertions(+)
diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml
index cbb544bd6c84..288923e965ae 100644
--- a/Documentation/netlink/specs/netdev.yaml
+++ b/Documentation/netlink/specs/netdev.yaml
@@ -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:
diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h
index e4be227d3ad6..684090732068 100644
--- a/include/uapi/linux/netdev.h
+++ b/include/uapi/linux/netdev.h
@@ -86,6 +86,12 @@ 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 +100,7 @@ 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 +143,7 @@ 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)
diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h
index e4be227d3ad6..684090732068 100644
--- a/tools/include/uapi/linux/netdev.h
+++ b/tools/include/uapi/linux/netdev.h
@@ -86,6 +86,12 @@ 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 +100,7 @@ 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 +143,7 @@ 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)
--
2.43.5
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