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8b7ab8eb52
linux/net/devlink/netlink_gen.h
Carolina Jubran 566e8f108f devlink: Extend devlink rate API with traffic classes bandwidth management 
Introduce support for specifying relative bandwidth shares between
traffic classes (TC) in the devlink-rate API. This new option allows
users to allocate bandwidth across multiple traffic classes in a
single command.

This feature provides a more granular control over traffic management,
especially for scenarios requiring Enhanced Transmission Selection.

Users can now define a relative bandwidth share for each traffic class.
For example, assigning share values of 20 to TC0 (TCP/UDP) and 80 to TC5
(RoCE) will result in TC0 receiving 20% and TC5 receiving 80% of the
total bandwidth. The actual percentage each class receives depends on
the ratio of its share value to the sum of all shares.

Example:
DEV=pci/0000:08:00.0

$ devlink port function rate add $DEV/vfs_group tx_share 10Gbit \
  tx_max 50Gbit tc-bw 0:20 1:0 2:0 3:0 4:0 5:80 6:0 7:0

$ devlink port function rate set $DEV/vfs_group \
  tc-bw 0:20 1:0 2:0 3:0 4:0 5:20 6:60 7:0

Example usage with ynl:

./tools/net/ynl/cli.py --spec Documentation/netlink/specs/devlink.yaml \
  --do rate-set --json '{
  "bus-name": "pci",
  "dev-name": "0000:08:00.0",
  "port-index": 1,
  "rate-tc-bws": [
    {"rate-tc-index": 0, "rate-tc-bw": 50},
    {"rate-tc-index": 1, "rate-tc-bw": 50},
    {"rate-tc-index": 2, "rate-tc-bw": 0},
    {"rate-tc-index": 3, "rate-tc-bw": 0},
    {"rate-tc-index": 4, "rate-tc-bw": 0},
    {"rate-tc-index": 5, "rate-tc-bw": 0},
    {"rate-tc-index": 6, "rate-tc-bw": 0},
    {"rate-tc-index": 7, "rate-tc-bw": 0}
  ]
}'

./tools/net/ynl/cli.py --spec Documentation/netlink/specs/devlink.yaml \
  --do rate-get --json '{
  "bus-name": "pci",
  "dev-name": "0000:08:00.0",
  "port-index": 1
}'

output for rate-get:
{'bus-name': 'pci',
 'dev-name': '0000:08:00.0',
 'port-index': 1,
 'rate-tc-bws': [{'rate-tc-bw': 50, 'rate-tc-index': 0},
                 {'rate-tc-bw': 50, 'rate-tc-index': 1},
                 {'rate-tc-bw': 0, 'rate-tc-index': 2},
                 {'rate-tc-bw': 0, 'rate-tc-index': 3},
                 {'rate-tc-bw': 0, 'rate-tc-index': 4},
                 {'rate-tc-bw': 0, 'rate-tc-index': 5},
                 {'rate-tc-bw': 0, 'rate-tc-index': 6},
                 {'rate-tc-bw': 0, 'rate-tc-index': 7}],
 'rate-tx-max': 0,
 'rate-tx-priority': 0,
 'rate-tx-share': 0,
 'rate-tx-weight': 0,
 'rate-type': 'leaf'}

Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/20250629142138.361537-3-mbloch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-02 15:39:05 -07:00

150 lines
7.7 KiB
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/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
/* Do not edit directly, auto-generated from: */
/* Documentation/netlink/specs/devlink.yaml */
/* YNL-GEN kernel header */
#ifndef _LINUX_DEVLINK_GEN_H
#define _LINUX_DEVLINK_GEN_H
#include <net/netlink.h>
#include <net/genetlink.h>
#include <uapi/linux/devlink.h>
/* Common nested types */
extern const struct nla_policy devlink_dl_port_function_nl_policy[DEVLINK_PORT_FN_ATTR_CAPS + 1];
extern const struct nla_policy devlink_dl_rate_tc_bws_nl_policy[DEVLINK_ATTR_RATE_TC_BW + 1];
extern const struct nla_policy devlink_dl_selftest_id_nl_policy[DEVLINK_ATTR_SELFTEST_ID_FLASH + 1];
/* Ops table for devlink */
extern const struct genl_split_ops devlink_nl_ops[74];
int devlink_nl_pre_doit(const struct genl_split_ops *ops, struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_pre_doit_port(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info);
int devlink_nl_pre_doit_dev_lock(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info);
int devlink_nl_pre_doit_port_optional(const struct genl_split_ops *ops,
struct sk_buff *skb,
struct genl_info *info);
void
devlink_nl_post_doit(const struct genl_split_ops *ops, struct sk_buff *skb,
struct genl_info *info);
void
devlink_nl_post_doit_dev_lock(const struct genl_split_ops *ops,
struct sk_buff *skb, struct genl_info *info);
int devlink_nl_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb);
int devlink_nl_port_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_port_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_port_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_port_new_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_port_del_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_port_split_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_port_unsplit_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_sb_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_sb_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb);
int devlink_nl_sb_pool_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_sb_pool_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_sb_pool_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_sb_port_pool_get_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_sb_port_pool_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_sb_port_pool_set_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_sb_tc_pool_bind_get_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_sb_tc_pool_bind_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_sb_tc_pool_bind_set_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_sb_occ_snapshot_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_sb_occ_max_clear_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_eswitch_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_eswitch_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_dpipe_table_get_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_dpipe_entries_get_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_dpipe_headers_get_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_dpipe_table_counters_set_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_resource_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_resource_dump_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_reload_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_param_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_param_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_param_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_region_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_region_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_region_new_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_region_del_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_region_read_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_port_param_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_port_param_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_port_param_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_info_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_info_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_health_reporter_get_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_health_reporter_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_health_reporter_set_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_health_reporter_recover_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_health_reporter_diagnose_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_health_reporter_dump_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_health_reporter_dump_clear_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_flash_update_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_trap_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_trap_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_trap_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_trap_group_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_trap_group_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_trap_group_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_trap_policer_get_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_trap_policer_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_trap_policer_set_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_health_reporter_test_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_rate_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_rate_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_rate_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_rate_new_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_rate_del_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_linecard_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_linecard_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_linecard_set_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_selftests_get_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_selftests_get_dumpit(struct sk_buff *skb,
struct netlink_callback *cb);
int devlink_nl_selftests_run_doit(struct sk_buff *skb, struct genl_info *info);
int devlink_nl_notify_filter_set_doit(struct sk_buff *skb,
struct genl_info *info);
#endif /* _LINUX_DEVLINK_GEN_H */
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