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| author | Jakub Kicinski <kuba@kernel.org> | 2023-11-27 00:07:34 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-11-28 15:48:39 +0100 |
| commit | 950ab53b77ab829defeb22bc98d40a5e926ae018 (patch) | |
| tree | cee2f76b7af83d1c384afb8ddf9406f61347fda3 /net/core/netdev-genl-gen.c | |
| parent | net: page_pool: add nlspec for basic access to page pools (diff) | |
| download | linux-950ab53b77ab829defeb22bc98d40a5e926ae018.tar.xz linux-950ab53b77ab829defeb22bc98d40a5e926ae018.zip | |
net: page_pool: implement GET in the netlink API
Expose the very basic page pool information via netlink.
Example using ynl-py for a system with 9 queues:
$ ./cli.py --no-schema --spec netlink/specs/netdev.yaml \
--dump page-pool-get
[{'id': 19, 'ifindex': 2, 'napi-id': 147},
{'id': 18, 'ifindex': 2, 'napi-id': 146},
{'id': 17, 'ifindex': 2, 'napi-id': 145},
{'id': 16, 'ifindex': 2, 'napi-id': 144},
{'id': 15, 'ifindex': 2, 'napi-id': 143},
{'id': 14, 'ifindex': 2, 'napi-id': 142},
{'id': 13, 'ifindex': 2, 'napi-id': 141},
{'id': 12, 'ifindex': 2, 'napi-id': 140},
{'id': 11, 'ifindex': 2, 'napi-id': 139},
{'id': 10, 'ifindex': 2, 'napi-id': 138}]
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>
Diffstat (limited to 'net/core/netdev-genl-gen.c')
| -rw-r--r-- | net/core/netdev-genl-gen.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/net/core/netdev-genl-gen.c b/net/core/netdev-genl-gen.c index ea9231378aa6..bfde13981c77 100644 --- a/net/core/netdev-genl-gen.c +++ b/net/core/netdev-genl-gen.c @@ -10,11 +10,24 @@ #include <uapi/linux/netdev.h> +/* Integer value ranges */ +static const struct netlink_range_validation netdev_a_page_pool_id_range = { + .min = 1ULL, + .max = 4294967295ULL, +}; + /* NETDEV_CMD_DEV_GET - do */ static const struct nla_policy netdev_dev_get_nl_policy[NETDEV_A_DEV_IFINDEX + 1] = { [NETDEV_A_DEV_IFINDEX] = NLA_POLICY_MIN(NLA_U32, 1), }; +/* NETDEV_CMD_PAGE_POOL_GET - do */ +#ifdef CONFIG_PAGE_POOL +static const struct nla_policy netdev_page_pool_get_nl_policy[NETDEV_A_PAGE_POOL_ID + 1] = { + [NETDEV_A_PAGE_POOL_ID] = NLA_POLICY_FULL_RANGE(NLA_UINT, &netdev_a_page_pool_id_range), +}; +#endif /* CONFIG_PAGE_POOL */ + /* Ops table for netdev */ static const struct genl_split_ops netdev_nl_ops[] = { { @@ -29,6 +42,20 @@ static const struct genl_split_ops netdev_nl_ops[] = { .dumpit = netdev_nl_dev_get_dumpit, .flags = GENL_CMD_CAP_DUMP, }, +#ifdef CONFIG_PAGE_POOL + { + .cmd = NETDEV_CMD_PAGE_POOL_GET, + .doit = netdev_nl_page_pool_get_doit, + .policy = netdev_page_pool_get_nl_policy, + .maxattr = NETDEV_A_PAGE_POOL_ID, + .flags = GENL_CMD_CAP_DO, + }, + { + .cmd = NETDEV_CMD_PAGE_POOL_GET, + .dumpit = netdev_nl_page_pool_get_dumpit, + .flags = GENL_CMD_CAP_DUMP, + }, +#endif /* CONFIG_PAGE_POOL */ }; static const struct genl_multicast_group netdev_nl_mcgrps[] = { |