From patchwork Thu Aug 29 15:16:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Abeni X-Patchwork-Id: 13783365 X-Patchwork-Delegate: kuba@kernel.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 31E8A1B1513 for ; Thu, 29 Aug 2024 15:17:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724944660; cv=none; b=LHom4NJdCppR/3o9q5k2Zmb8RF7u4fq6U4Nv4WFdJdc8kybLKyNdBgMQnyHMuc4G90OYa41gVhS4+JkQj4tEhouoMeODuU/YvoVCza+HJ07RcrZ0+sG5YJ+2mOUS/2IhskxUMDOSByB1QnM2yxZiZ3iR9LjoEeocwxtUe6dZVG4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724944660; c=relaxed/simple; bh=2j+gikylRoC8rIGshpHfNYO1dwDCg8ntW3LJCB0+7mo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Za7KsATaUwfbkZJ+h69o3rZy2qosSjZ2lRA89K0s5Qtzbpzaem7reIJLgbUNmMQ7GMMxoYRFnBCUH5lYVW9JgL2E9HYNMmBzBVZhLsxHc4dlkbLLba2x9f79d9jRLMaGDfuHaT08wEYAqYfwCJi0OXMdxVbl7BvINvu+zCVYoig= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=YsatGb1P; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="YsatGb1P" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1724944657; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=mYKNFdhf4vYVdDhytv5kgVnc0pL/IkDzlrOUzgB07Us=; b=YsatGb1PMRMEGPC3R7KzCKq7ljBFM0+pBCKrlwccuHeDwkJygsyfAURtEKw5v+Szui+5VC wTg0ylOodHTDlOC6lAp6BiOPO+HqqzlBYxsABQZmjPcI60V6FdfHsAjgMoeFDGxfcqNmic yd7QHpWhTSWg2YiISCVyP36Y1xI/1vs= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-512-3NkB14r9MRC_Ded9zGTPig-1; Thu, 29 Aug 2024 11:17:33 -0400 X-MC-Unique: 3NkB14r9MRC_Ded9zGTPig-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1463B1955BE7; Thu, 29 Aug 2024 15:17:30 +0000 (UTC) Received: from gerbillo.redhat.com (unknown [10.45.224.217]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 4AB323001FC3; Thu, 29 Aug 2024 15:17:24 +0000 (UTC) From: Paolo Abeni To: netdev@vger.kernel.org Cc: Jakub Kicinski , Jiri Pirko , Madhu Chittim , Sridhar Samudrala , Simon Horman , John Fastabend , Sunil Kovvuri Goutham , Jamal Hadi Salim , Donald Hunter , anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com, intel-wired-lan@lists.osuosl.org, edumazet@google.com Subject: [PATCH v5 net-next 01/12] netlink: spec: add shaper YAML spec Date: Thu, 29 Aug 2024 17:16:54 +0200 Message-ID: <6efadf27d04ebeefee842586237cadcb18da5fca.1724944117.git.pabeni@redhat.com> In-Reply-To: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Patchwork-Delegate: kuba@kernel.org Define the user-space visible interface to query, configure and delete network shapers via yaml definition. Add dummy implementations for the relevant NL callbacks. set() and delete() operations touch a single shaper creating/updating or deleting it. The group() operation creates a shaper's group, nesting multiple input shapers under the specified output shaper. Signed-off-by: Paolo Abeni --- v4 -> v5: - moved ifindex under the binding attr - moved id, scope to new attr set - rename 'root' as 'node' - deleted unused 'info' subset - a lot of doc update and fixup - removed empty black line at MAKEFILE eof v3 -> v4: - spec file rename - always use '@' for references - detached scope -> node scope - inputs/output -> leaves/root - deduplicate leaves/root policy - get/dump/group return ifindex, too - added some general introduction to the doc RFC v1 -> RFC v2: - u64 -> uint - net_shapers -> net-shapers - documented all the attributes - dropped [ admin-perm ] for get() op - group op - set/delete touch a single shaper --- Documentation/netlink/specs/net_shaper.yaml | 303 ++++++++++++++++++++ MAINTAINERS | 1 + include/uapi/linux/net_shaper.h | 80 ++++++ net/Kconfig | 3 + net/Makefile | 1 + net/shaper/Makefile | 8 + net/shaper/shaper.c | 55 ++++ net/shaper/shaper_nl_gen.c | 127 ++++++++ net/shaper/shaper_nl_gen.h | 35 +++ 9 files changed, 613 insertions(+) create mode 100644 Documentation/netlink/specs/net_shaper.yaml create mode 100644 include/uapi/linux/net_shaper.h create mode 100644 net/shaper/Makefile create mode 100644 net/shaper/shaper.c create mode 100644 net/shaper/shaper_nl_gen.c create mode 100644 net/shaper/shaper_nl_gen.h diff --git a/Documentation/netlink/specs/net_shaper.yaml b/Documentation/netlink/specs/net_shaper.yaml new file mode 100644 index 000000000000..ae40bd17c39c --- /dev/null +++ b/Documentation/netlink/specs/net_shaper.yaml @@ -0,0 +1,303 @@ +# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) + +name: net-shaper + +doc: | + Networking HW rate limiting configuration. + + This API allows configuring HW shapers available on the network + devices at different levels (queues, network device) and allows + arbitrary manipulation of the scheduling tree of the involved + shapers. + + Each @shaper is identified within the given device, by an @handle, + comprising both a @scope and an @id. + + Depending on the @scope value, the shapers are attached to specific + HW objects (queues, devices) or, for @node scope, represent a + scheduling group, that can be placed in an arbitrary location of + the scheduling tree. + + Shapers can be created with two different operations: the @set + operation, to create and update a single "attached" shaper, and + the @group operation, to create and update a scheduling + group. Only the @group operation can create @node scope shapers + + Existing shapers can be deleted /reset via the @delete operation. + + The user can query the running configuration via the @get operation. + +definitions: + - + type: enum + name: scope + doc: Defines the shaper @id interpretation. + render-max: true + entries: + - name: unspec + doc: The scope is not specified. + - + name: netdev + doc: The main shaper for the given network device. + - + name: queue + doc: | + The shaper is attached to the given device queue, + the @id represents the queue number. + - + name: node + doc: | + The shaper allows grouping of queues or other + node shapers; can be nested in either @netdev + shapers or other @node shapers, allowing placement + in any location of the scheduling tree, except + leaves and root. + - + type: enum + name: metric + doc: Different metric supported by the shaper. + entries: + - + name: bps + doc: Shaper operates on a bits per second basis. + - + name: pps + doc: Shaper operates on a packets per second basis. + +attribute-sets: + - + name: net-shaper + attributes: + - + name: handle + type: nest + nested-attributes: handle + doc: Unique identifier for the given shaper inside the owning device. + - + name: metric + type: u32 + enum: metric + doc: Metric used by the given shaper for bw-min, bw-max and burst. + - + name: bw-min + type: uint + doc: Minimum Guaranteed bandwidth for the given shaper. + - + name: bw-max + type: uint + doc: Maximum bandwidth for the given shaper or 0 when unlimited. + - + name: burst + type: uint + doc: | + Maximum burst-size for shaping. Should not be interpreted + as a quantum. + - + name: priority + type: u32 + doc: | + Scheduling priority for the given shaper. The priority + scheduling is applied to sibling shapers. + - + name: weight + type: u32 + doc: | + Relative weight for round robin scheduling of the + given shaper. + The scheduling is applied to all sibling shapers + with the same priority. + - + name: ifindex + type: u32 + doc: Interface index owning the specified shaper. + - + name: parent + type: nest + nested-attributes: handle + doc: | + Identifier for the parent of the affected shaper. + Only needed for @group operation. + - + name: leaves + type: nest + multi-attr: true + nested-attributes: info + doc: | + Describes a set of leaves shapers for a @group operation. + - + name: node + type: nest + nested-attributes: node-info + doc: | + Describes the node shaper for a @group operation. + Differently from @leaves and @shaper allow specifying + the shaper parent handle, too. + - + name: shaper + type: nest + nested-attributes: info + doc: | + Describes a single shaper for a @set operation. + - + name: handle + attributes: + - + name: scope + type: u32 + enum: scope + doc: Defines the shaper @id interpretation. + - + name: id + type: u32 + doc: | + Numeric identifier of a shaper. The id semantic depends on + the scope. For @queue scope it's the queue id and for @node + scope it's the node identifier. + - + name: info + subset-of: net-shaper + attributes: + - + name: handle + - + name: metric + - + name: bw-min + - + name: bw-max + - + name: burst + - + name: priority + - + name: weight + - + name: node-info + subset-of: net-shaper + attributes: + - + name: parent + - + name: handle + - + name: metric + - + name: bw-min + - + name: bw-max + - + name: burst + - + name: priority + - + name: weight + +operations: + list: + - + name: get + doc: | + Get information about a shaper for a given device. + attribute-set: net-shaper + + do: + pre: net-shaper-nl-pre-doit + post: net-shaper-nl-post-doit + request: + attributes: &ns-binding + - ifindex + - handle + reply: + attributes: &ns-attrs + - ifindex + - parent + - handle + - metric + - bw-min + - bw-max + - burst + - priority + - weight + + dump: + pre: net-shaper-nl-pre-dumpit + post: net-shaper-nl-post-dumpit + request: + attributes: + - ifindex + reply: + attributes: *ns-attrs + - + name: set + doc: | + Create or update the specified shaper. + The set operation can't be used to create a @node scope shaper, + use the @group operation instead. + attribute-set: net-shaper + flags: [ admin-perm ] + + do: + pre: net-shaper-nl-pre-doit + post: net-shaper-nl-post-doit + request: + attributes: + - ifindex + - shaper + + - + name: delete + doc: | + Clear (remove) the specified shaper. When deleting + a @node shaper, reattach all the node's leaves to the + deleted node's parent. + If, after the removal, the parent shaper has no more + leaves and the parent shaper scope is @node,the parent + node is deleted, recursively. + When deleting a @queue shaper or a @netdev shaper, + the shaper disappears from the hierarchy, but the + queue/device can still send traffic: it has an implicit + node with infinite bandwidth. Queue's implicit node + feeds an implicit RR node at the root of the hierarchy. + attribute-set: net-shaper + flags: [ admin-perm ] + + do: + pre: net-shaper-nl-pre-doit + post: net-shaper-nl-post-doit + request: + attributes: *ns-binding + + - + name: group + doc: | + Create or update a scheduling group, attaching the specified + @leaves shapers under the specified @node, creating the latter, + if needed. + The @leaves shapers scope must be @queue and the @node shaper + scope must be either @node or @netdev. + When the @node shaper has @node scope, if the @handle @id is not + specified, a new shaper of such scope is created, otherwise the + specified @node must already exist. + The @parent handle for the @node shaper is optional in most cases. + For newly created @node scope shaper, the @parent is set by + default to the parent linked to the @leaves before the @group + operation. If, prior to the grouping operation, the @leaves + have different parents, the @node shaper parent must be explicitly + set. + The operation is atomic, on failure no change is applied to + the device shaping configuration, otherwise the @node shaper + full identifier, comprising @binding and @handle, is provided + as the reply. + attribute-set: net-shaper + flags: [ admin-perm ] + + do: + pre: net-shaper-nl-pre-doit + post: net-shaper-nl-post-doit + request: + attributes: + - ifindex + - leaves + - node + reply: + attributes: *ns-binding diff --git a/MAINTAINERS b/MAINTAINERS index 30a9b9450e11..2673b9c63439 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15892,6 +15892,7 @@ F: include/linux/platform_data/wiznet.h F: include/uapi/linux/cn_proc.h F: include/uapi/linux/ethtool_netlink.h F: include/uapi/linux/if_* +F: include/uapi/linux/net_shaper.h F: include/uapi/linux/netdev* F: tools/testing/selftests/drivers/net/ X: drivers/net/wireless/ diff --git a/include/uapi/linux/net_shaper.h b/include/uapi/linux/net_shaper.h new file mode 100644 index 000000000000..03c774a2bec1 --- /dev/null +++ b/include/uapi/linux/net_shaper.h @@ -0,0 +1,80 @@ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ +/* Do not edit directly, auto-generated from: */ +/* Documentation/netlink/specs/net_shaper.yaml */ +/* YNL-GEN uapi header */ + +#ifndef _UAPI_LINUX_NET_SHAPER_H +#define _UAPI_LINUX_NET_SHAPER_H + +#define NET_SHAPER_FAMILY_NAME "net-shaper" +#define NET_SHAPER_FAMILY_VERSION 1 + +/** + * enum net_shaper_scope - Defines the shaper @id interpretation. + * @NET_SHAPER_SCOPE_UNSPEC: The scope is not specified. + * @NET_SHAPER_SCOPE_NETDEV: The main shaper for the given network device. + * @NET_SHAPER_SCOPE_QUEUE: The shaper is attached to the given device queue, + * the @id represents the queue number. + * @NET_SHAPER_SCOPE_NODE: The shaper allows grouping of queues or other node + * shapers; can be nested in either @netdev shapers or other @node shapers, + * allowing placement in any location of the scheduling tree, except leaves + * and root. + */ +enum net_shaper_scope { + NET_SHAPER_SCOPE_UNSPEC, + NET_SHAPER_SCOPE_NETDEV, + NET_SHAPER_SCOPE_QUEUE, + NET_SHAPER_SCOPE_NODE, + + /* private: */ + __NET_SHAPER_SCOPE_MAX, + NET_SHAPER_SCOPE_MAX = (__NET_SHAPER_SCOPE_MAX - 1) +}; + +/** + * enum net_shaper_metric - Different metric supported by the shaper. + * @NET_SHAPER_METRIC_BPS: Shaper operates on a bits per second basis. + * @NET_SHAPER_METRIC_PPS: Shaper operates on a packets per second basis. + */ +enum net_shaper_metric { + NET_SHAPER_METRIC_BPS, + NET_SHAPER_METRIC_PPS, +}; + +enum { + NET_SHAPER_A_HANDLE = 1, + NET_SHAPER_A_METRIC, + NET_SHAPER_A_BW_MIN, + NET_SHAPER_A_BW_MAX, + NET_SHAPER_A_BURST, + NET_SHAPER_A_PRIORITY, + NET_SHAPER_A_WEIGHT, + NET_SHAPER_A_IFINDEX, + NET_SHAPER_A_PARENT, + NET_SHAPER_A_LEAVES, + NET_SHAPER_A_NODE, + NET_SHAPER_A_SHAPER, + + __NET_SHAPER_A_MAX, + NET_SHAPER_A_MAX = (__NET_SHAPER_A_MAX - 1) +}; + +enum { + NET_SHAPER_A_HANDLE_SCOPE = 1, + NET_SHAPER_A_HANDLE_ID, + + __NET_SHAPER_A_HANDLE_MAX, + NET_SHAPER_A_HANDLE_MAX = (__NET_SHAPER_A_HANDLE_MAX - 1) +}; + +enum { + NET_SHAPER_CMD_GET = 1, + NET_SHAPER_CMD_SET, + NET_SHAPER_CMD_DELETE, + NET_SHAPER_CMD_GROUP, + + __NET_SHAPER_CMD_MAX, + NET_SHAPER_CMD_MAX = (__NET_SHAPER_CMD_MAX - 1) +}; + +#endif /* _UAPI_LINUX_NET_SHAPER_H */ diff --git a/net/Kconfig b/net/Kconfig index d27d0deac0bf..31fccfed04f7 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -66,6 +66,9 @@ config SKB_DECRYPTED config SKB_EXTENSIONS bool +config NET_SHAPER + bool + menu "Networking options" source "net/packet/Kconfig" diff --git a/net/Makefile b/net/Makefile index 65bb8c72a35e..60ed5190eda8 100644 --- a/net/Makefile +++ b/net/Makefile @@ -79,3 +79,4 @@ obj-$(CONFIG_XDP_SOCKETS) += xdp/ obj-$(CONFIG_MPTCP) += mptcp/ obj-$(CONFIG_MCTP) += mctp/ obj-$(CONFIG_NET_HANDSHAKE) += handshake/ +obj-$(CONFIG_NET_SHAPER) += shaper/ diff --git a/net/shaper/Makefile b/net/shaper/Makefile new file mode 100644 index 000000000000..54af7169a331 --- /dev/null +++ b/net/shaper/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for the net shaper infrastructure. +# +# Copyright (c) 2024, Red Hat, Inc. +# + +obj-y += shaper.o shaper_nl_gen.o diff --git a/net/shaper/shaper.c b/net/shaper/shaper.c new file mode 100644 index 000000000000..a1b20888f502 --- /dev/null +++ b/net/shaper/shaper.c @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +#include +#include + +#include "shaper_nl_gen.h" + +int net_shaper_nl_pre_doit(const struct genl_split_ops *ops, + struct sk_buff *skb, struct genl_info *info) +{ + return -EOPNOTSUPP; +} + +void net_shaper_nl_post_doit(const struct genl_split_ops *ops, + struct sk_buff *skb, struct genl_info *info) +{ +} + +int net_shaper_nl_get_doit(struct sk_buff *skb, struct genl_info *info) +{ + return -EOPNOTSUPP; +} + +int net_shaper_nl_get_dumpit(struct sk_buff *skb, + struct netlink_callback *cb) +{ + return -EOPNOTSUPP; +} + +int net_shaper_nl_set_doit(struct sk_buff *skb, struct genl_info *info) +{ + return -EOPNOTSUPP; +} + +int net_shaper_nl_delete_doit(struct sk_buff *skb, struct genl_info *info) +{ + return -EOPNOTSUPP; +} + +int net_shaper_nl_pre_dumpit(struct netlink_callback *cb) +{ + return -EOPNOTSUPP; +} + +int net_shaper_nl_post_dumpit(struct netlink_callback *cb) +{ + return -EOPNOTSUPP; +} + +static int __init shaper_init(void) +{ + return genl_register_family(&net_shaper_nl_family); +} + +subsys_initcall(shaper_init); diff --git a/net/shaper/shaper_nl_gen.c b/net/shaper/shaper_nl_gen.c new file mode 100644 index 000000000000..06641811bfc1 --- /dev/null +++ b/net/shaper/shaper_nl_gen.c @@ -0,0 +1,127 @@ +// SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) +/* Do not edit directly, auto-generated from: */ +/* Documentation/netlink/specs/net_shaper.yaml */ +/* YNL-GEN kernel source */ + +#include +#include + +#include "shaper_nl_gen.h" + +#include + +/* Common nested types */ +const struct nla_policy net_shaper_handle_nl_policy[NET_SHAPER_A_HANDLE_ID + 1] = { + [NET_SHAPER_A_HANDLE_SCOPE] = NLA_POLICY_MAX(NLA_U32, 3), + [NET_SHAPER_A_HANDLE_ID] = { .type = NLA_U32, }, +}; + +const struct nla_policy net_shaper_info_nl_policy[NET_SHAPER_A_WEIGHT + 1] = { + [NET_SHAPER_A_HANDLE] = NLA_POLICY_NESTED(net_shaper_handle_nl_policy), + [NET_SHAPER_A_METRIC] = NLA_POLICY_MAX(NLA_U32, 1), + [NET_SHAPER_A_BW_MIN] = { .type = NLA_UINT, }, + [NET_SHAPER_A_BW_MAX] = { .type = NLA_UINT, }, + [NET_SHAPER_A_BURST] = { .type = NLA_UINT, }, + [NET_SHAPER_A_PRIORITY] = { .type = NLA_U32, }, + [NET_SHAPER_A_WEIGHT] = { .type = NLA_U32, }, +}; + +const struct nla_policy net_shaper_node_info_nl_policy[NET_SHAPER_A_PARENT + 1] = { + [NET_SHAPER_A_PARENT] = NLA_POLICY_NESTED(net_shaper_handle_nl_policy), + [NET_SHAPER_A_HANDLE] = NLA_POLICY_NESTED(net_shaper_handle_nl_policy), + [NET_SHAPER_A_METRIC] = NLA_POLICY_MAX(NLA_U32, 1), + [NET_SHAPER_A_BW_MIN] = { .type = NLA_UINT, }, + [NET_SHAPER_A_BW_MAX] = { .type = NLA_UINT, }, + [NET_SHAPER_A_BURST] = { .type = NLA_UINT, }, + [NET_SHAPER_A_PRIORITY] = { .type = NLA_U32, }, + [NET_SHAPER_A_WEIGHT] = { .type = NLA_U32, }, +}; + +/* NET_SHAPER_CMD_GET - do */ +static const struct nla_policy net_shaper_get_do_nl_policy[NET_SHAPER_A_IFINDEX + 1] = { + [NET_SHAPER_A_IFINDEX] = { .type = NLA_U32, }, + [NET_SHAPER_A_HANDLE] = NLA_POLICY_NESTED(net_shaper_handle_nl_policy), +}; + +/* NET_SHAPER_CMD_GET - dump */ +static const struct nla_policy net_shaper_get_dump_nl_policy[NET_SHAPER_A_IFINDEX + 1] = { + [NET_SHAPER_A_IFINDEX] = { .type = NLA_U32, }, +}; + +/* NET_SHAPER_CMD_SET - do */ +static const struct nla_policy net_shaper_set_nl_policy[NET_SHAPER_A_SHAPER + 1] = { + [NET_SHAPER_A_IFINDEX] = { .type = NLA_U32, }, + [NET_SHAPER_A_SHAPER] = NLA_POLICY_NESTED(net_shaper_info_nl_policy), +}; + +/* NET_SHAPER_CMD_DELETE - do */ +static const struct nla_policy net_shaper_delete_nl_policy[NET_SHAPER_A_IFINDEX + 1] = { + [NET_SHAPER_A_IFINDEX] = { .type = NLA_U32, }, + [NET_SHAPER_A_HANDLE] = NLA_POLICY_NESTED(net_shaper_handle_nl_policy), +}; + +/* NET_SHAPER_CMD_GROUP - do */ +static const struct nla_policy net_shaper_group_nl_policy[NET_SHAPER_A_NODE + 1] = { + [NET_SHAPER_A_IFINDEX] = { .type = NLA_U32, }, + [NET_SHAPER_A_LEAVES] = NLA_POLICY_NESTED(net_shaper_info_nl_policy), + [NET_SHAPER_A_NODE] = NLA_POLICY_NESTED(net_shaper_node_info_nl_policy), +}; + +/* Ops table for net_shaper */ +static const struct genl_split_ops net_shaper_nl_ops[] = { + { + .cmd = NET_SHAPER_CMD_GET, + .pre_doit = net_shaper_nl_pre_doit, + .doit = net_shaper_nl_get_doit, + .post_doit = net_shaper_nl_post_doit, + .policy = net_shaper_get_do_nl_policy, + .maxattr = NET_SHAPER_A_IFINDEX, + .flags = GENL_CMD_CAP_DO, + }, + { + .cmd = NET_SHAPER_CMD_GET, + .start = net_shaper_nl_pre_dumpit, + .dumpit = net_shaper_nl_get_dumpit, + .done = net_shaper_nl_post_dumpit, + .policy = net_shaper_get_dump_nl_policy, + .maxattr = NET_SHAPER_A_IFINDEX, + .flags = GENL_CMD_CAP_DUMP, + }, + { + .cmd = NET_SHAPER_CMD_SET, + .pre_doit = net_shaper_nl_pre_doit, + .doit = net_shaper_nl_set_doit, + .post_doit = net_shaper_nl_post_doit, + .policy = net_shaper_set_nl_policy, + .maxattr = NET_SHAPER_A_SHAPER, + .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, + }, + { + .cmd = NET_SHAPER_CMD_DELETE, + .pre_doit = net_shaper_nl_pre_doit, + .doit = net_shaper_nl_delete_doit, + .post_doit = net_shaper_nl_post_doit, + .policy = net_shaper_delete_nl_policy, + .maxattr = NET_SHAPER_A_IFINDEX, + .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, + }, + { + .cmd = NET_SHAPER_CMD_GROUP, + .pre_doit = net_shaper_nl_pre_doit, + .doit = net_shaper_nl_group_doit, + .post_doit = net_shaper_nl_post_doit, + .policy = net_shaper_group_nl_policy, + .maxattr = NET_SHAPER_A_NODE, + .flags = GENL_ADMIN_PERM | GENL_CMD_CAP_DO, + }, +}; + +struct genl_family net_shaper_nl_family __ro_after_init = { + .name = NET_SHAPER_FAMILY_NAME, + .version = NET_SHAPER_FAMILY_VERSION, + .netnsok = true, + .parallel_ops = true, + .module = THIS_MODULE, + .split_ops = net_shaper_nl_ops, + .n_split_ops = ARRAY_SIZE(net_shaper_nl_ops), +}; diff --git a/net/shaper/shaper_nl_gen.h b/net/shaper/shaper_nl_gen.h new file mode 100644 index 000000000000..0fe95a03f1b5 --- /dev/null +++ b/net/shaper/shaper_nl_gen.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ +/* Do not edit directly, auto-generated from: */ +/* Documentation/netlink/specs/net_shaper.yaml */ +/* YNL-GEN kernel header */ + +#ifndef _LINUX_NET_SHAPER_GEN_H +#define _LINUX_NET_SHAPER_GEN_H + +#include +#include + +#include + +/* Common nested types */ +extern const struct nla_policy net_shaper_handle_nl_policy[NET_SHAPER_A_HANDLE_ID + 1]; +extern const struct nla_policy net_shaper_info_nl_policy[NET_SHAPER_A_WEIGHT + 1]; +extern const struct nla_policy net_shaper_node_info_nl_policy[NET_SHAPER_A_PARENT + 1]; + +int net_shaper_nl_pre_doit(const struct genl_split_ops *ops, + struct sk_buff *skb, struct genl_info *info); +void +net_shaper_nl_post_doit(const struct genl_split_ops *ops, struct sk_buff *skb, + struct genl_info *info); +int net_shaper_nl_pre_dumpit(struct netlink_callback *cb); +int net_shaper_nl_post_dumpit(struct netlink_callback *cb); + +int net_shaper_nl_get_doit(struct sk_buff *skb, struct genl_info *info); +int net_shaper_nl_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb); +int net_shaper_nl_set_doit(struct sk_buff *skb, struct genl_info *info); +int net_shaper_nl_delete_doit(struct sk_buff *skb, struct genl_info *info); +int net_shaper_nl_group_doit(struct sk_buff *skb, struct genl_info *info); + +extern struct genl_family net_shaper_nl_family; + +#endif /* _LINUX_NET_SHAPER_GEN_H */