mirror of
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c1c9a3c966
the message be freed immediately, no need to trim it
back to the previous size.
Inspired by commit 7a9b3ec1e1
("nl80211: remove unnecessary genlmsg_cancel() calls")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3452 lines
88 KiB
C
3452 lines
88 KiB
C
/*
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* net/core/devlink.c - Network physical/parent device Netlink interface
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*
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* Heavily inspired by net/wireless/
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* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/gfp.h>
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#include <linux/device.h>
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#include <linux/list.h>
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#include <linux/netdevice.h>
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#include <rdma/ib_verbs.h>
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#include <net/netlink.h>
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#include <net/genetlink.h>
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#include <net/rtnetlink.h>
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#include <net/net_namespace.h>
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#include <net/sock.h>
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#include <net/devlink.h>
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#define CREATE_TRACE_POINTS
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#include <trace/events/devlink.h>
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static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = {
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{
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.name = "destination mac",
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.id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC,
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.bitwidth = 48,
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},
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};
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struct devlink_dpipe_header devlink_dpipe_header_ethernet = {
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.name = "ethernet",
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.id = DEVLINK_DPIPE_HEADER_ETHERNET,
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.fields = devlink_dpipe_fields_ethernet,
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.fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet),
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.global = true,
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};
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EXPORT_SYMBOL(devlink_dpipe_header_ethernet);
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static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = {
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{
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.name = "destination ip",
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.id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP,
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.bitwidth = 32,
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},
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};
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struct devlink_dpipe_header devlink_dpipe_header_ipv4 = {
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.name = "ipv4",
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.id = DEVLINK_DPIPE_HEADER_IPV4,
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.fields = devlink_dpipe_fields_ipv4,
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.fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4),
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.global = true,
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};
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EXPORT_SYMBOL(devlink_dpipe_header_ipv4);
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static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = {
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{
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.name = "destination ip",
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.id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP,
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.bitwidth = 128,
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},
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};
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struct devlink_dpipe_header devlink_dpipe_header_ipv6 = {
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.name = "ipv6",
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.id = DEVLINK_DPIPE_HEADER_IPV6,
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.fields = devlink_dpipe_fields_ipv6,
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.fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6),
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.global = true,
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};
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EXPORT_SYMBOL(devlink_dpipe_header_ipv6);
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EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg);
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static LIST_HEAD(devlink_list);
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/* devlink_mutex
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*
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* An overall lock guarding every operation coming from userspace.
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* It also guards devlink devices list and it is taken when
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* driver registers/unregisters it.
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*/
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static DEFINE_MUTEX(devlink_mutex);
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static struct net *devlink_net(const struct devlink *devlink)
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{
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return read_pnet(&devlink->_net);
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}
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static void devlink_net_set(struct devlink *devlink, struct net *net)
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{
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write_pnet(&devlink->_net, net);
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}
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static struct devlink *devlink_get_from_attrs(struct net *net,
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struct nlattr **attrs)
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{
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struct devlink *devlink;
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char *busname;
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char *devname;
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if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME])
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return ERR_PTR(-EINVAL);
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busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]);
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devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]);
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list_for_each_entry(devlink, &devlink_list, list) {
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if (strcmp(devlink->dev->bus->name, busname) == 0 &&
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strcmp(dev_name(devlink->dev), devname) == 0 &&
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net_eq(devlink_net(devlink), net))
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return devlink;
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}
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return ERR_PTR(-ENODEV);
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}
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static struct devlink *devlink_get_from_info(struct genl_info *info)
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{
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return devlink_get_from_attrs(genl_info_net(info), info->attrs);
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}
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static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink,
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int port_index)
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{
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struct devlink_port *devlink_port;
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list_for_each_entry(devlink_port, &devlink->port_list, list) {
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if (devlink_port->index == port_index)
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return devlink_port;
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}
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return NULL;
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}
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static bool devlink_port_index_exists(struct devlink *devlink, int port_index)
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{
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return devlink_port_get_by_index(devlink, port_index);
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}
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static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink,
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struct nlattr **attrs)
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{
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if (attrs[DEVLINK_ATTR_PORT_INDEX]) {
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u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]);
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struct devlink_port *devlink_port;
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devlink_port = devlink_port_get_by_index(devlink, port_index);
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if (!devlink_port)
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return ERR_PTR(-ENODEV);
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return devlink_port;
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}
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return ERR_PTR(-EINVAL);
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}
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static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink,
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struct genl_info *info)
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{
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return devlink_port_get_from_attrs(devlink, info->attrs);
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}
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struct devlink_sb {
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struct list_head list;
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unsigned int index;
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u32 size;
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u16 ingress_pools_count;
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u16 egress_pools_count;
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u16 ingress_tc_count;
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u16 egress_tc_count;
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};
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static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb)
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{
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return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count;
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}
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static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink,
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unsigned int sb_index)
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{
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struct devlink_sb *devlink_sb;
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list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
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if (devlink_sb->index == sb_index)
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return devlink_sb;
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}
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return NULL;
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}
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static bool devlink_sb_index_exists(struct devlink *devlink,
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unsigned int sb_index)
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{
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return devlink_sb_get_by_index(devlink, sb_index);
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}
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static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink,
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struct nlattr **attrs)
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{
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if (attrs[DEVLINK_ATTR_SB_INDEX]) {
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u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]);
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struct devlink_sb *devlink_sb;
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devlink_sb = devlink_sb_get_by_index(devlink, sb_index);
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if (!devlink_sb)
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return ERR_PTR(-ENODEV);
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return devlink_sb;
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}
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return ERR_PTR(-EINVAL);
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}
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static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink,
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struct genl_info *info)
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{
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return devlink_sb_get_from_attrs(devlink, info->attrs);
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}
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static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb,
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struct nlattr **attrs,
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u16 *p_pool_index)
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{
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u16 val;
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if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX])
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return -EINVAL;
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val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]);
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if (val >= devlink_sb_pool_count(devlink_sb))
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return -EINVAL;
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*p_pool_index = val;
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return 0;
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}
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static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb,
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struct genl_info *info,
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u16 *p_pool_index)
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{
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return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs,
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p_pool_index);
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}
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static int
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devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs,
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enum devlink_sb_pool_type *p_pool_type)
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{
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u8 val;
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if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE])
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return -EINVAL;
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val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]);
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if (val != DEVLINK_SB_POOL_TYPE_INGRESS &&
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val != DEVLINK_SB_POOL_TYPE_EGRESS)
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return -EINVAL;
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*p_pool_type = val;
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return 0;
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}
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static int
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devlink_sb_pool_type_get_from_info(struct genl_info *info,
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enum devlink_sb_pool_type *p_pool_type)
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{
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return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type);
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}
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static int
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devlink_sb_th_type_get_from_attrs(struct nlattr **attrs,
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enum devlink_sb_threshold_type *p_th_type)
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{
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u8 val;
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if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE])
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return -EINVAL;
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val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]);
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if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC &&
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val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC)
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return -EINVAL;
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*p_th_type = val;
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return 0;
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}
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static int
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devlink_sb_th_type_get_from_info(struct genl_info *info,
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enum devlink_sb_threshold_type *p_th_type)
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{
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return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type);
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}
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static int
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devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb,
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struct nlattr **attrs,
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enum devlink_sb_pool_type pool_type,
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u16 *p_tc_index)
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{
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u16 val;
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if (!attrs[DEVLINK_ATTR_SB_TC_INDEX])
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return -EINVAL;
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val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]);
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if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS &&
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val >= devlink_sb->ingress_tc_count)
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return -EINVAL;
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if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS &&
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val >= devlink_sb->egress_tc_count)
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return -EINVAL;
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*p_tc_index = val;
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return 0;
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}
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static int
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devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb,
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struct genl_info *info,
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enum devlink_sb_pool_type pool_type,
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u16 *p_tc_index)
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{
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return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs,
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pool_type, p_tc_index);
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}
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#define DEVLINK_NL_FLAG_NEED_DEVLINK BIT(0)
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#define DEVLINK_NL_FLAG_NEED_PORT BIT(1)
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#define DEVLINK_NL_FLAG_NEED_SB BIT(2)
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/* The per devlink instance lock is taken by default in the pre-doit
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* operation, yet several commands do not require this. The global
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* devlink lock is taken and protects from disruption by user-calls.
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*/
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#define DEVLINK_NL_FLAG_NO_LOCK BIT(3)
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static int devlink_nl_pre_doit(const struct genl_ops *ops,
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struct sk_buff *skb, struct genl_info *info)
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{
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struct devlink *devlink;
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int err;
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mutex_lock(&devlink_mutex);
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devlink = devlink_get_from_info(info);
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if (IS_ERR(devlink)) {
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mutex_unlock(&devlink_mutex);
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return PTR_ERR(devlink);
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}
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if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK)
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mutex_lock(&devlink->lock);
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if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) {
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info->user_ptr[0] = devlink;
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} else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) {
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struct devlink_port *devlink_port;
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devlink_port = devlink_port_get_from_info(devlink, info);
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if (IS_ERR(devlink_port)) {
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err = PTR_ERR(devlink_port);
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goto unlock;
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}
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info->user_ptr[0] = devlink_port;
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}
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if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_SB) {
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struct devlink_sb *devlink_sb;
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devlink_sb = devlink_sb_get_from_info(devlink, info);
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if (IS_ERR(devlink_sb)) {
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err = PTR_ERR(devlink_sb);
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goto unlock;
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}
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info->user_ptr[1] = devlink_sb;
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}
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return 0;
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unlock:
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if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK)
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mutex_unlock(&devlink->lock);
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mutex_unlock(&devlink_mutex);
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return err;
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}
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static void devlink_nl_post_doit(const struct genl_ops *ops,
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struct sk_buff *skb, struct genl_info *info)
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{
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struct devlink *devlink;
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devlink = devlink_get_from_info(info);
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if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK)
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mutex_unlock(&devlink->lock);
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mutex_unlock(&devlink_mutex);
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}
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static struct genl_family devlink_nl_family;
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enum devlink_multicast_groups {
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DEVLINK_MCGRP_CONFIG,
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};
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static const struct genl_multicast_group devlink_nl_mcgrps[] = {
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[DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME },
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};
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|
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static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink)
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{
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if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name))
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return -EMSGSIZE;
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if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev)))
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return -EMSGSIZE;
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return 0;
|
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}
|
|
|
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static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink,
|
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enum devlink_command cmd, u32 portid,
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u32 seq, int flags)
|
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{
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void *hdr;
|
|
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hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
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if (!hdr)
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return -EMSGSIZE;
|
|
|
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if (devlink_nl_put_handle(msg, devlink))
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goto nla_put_failure;
|
|
|
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genlmsg_end(msg, hdr);
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return 0;
|
|
|
|
nla_put_failure:
|
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genlmsg_cancel(msg, hdr);
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return -EMSGSIZE;
|
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}
|
|
|
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static void devlink_notify(struct devlink *devlink, enum devlink_command cmd)
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{
|
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struct sk_buff *msg;
|
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int err;
|
|
|
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WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL);
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|
|
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msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!msg)
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return;
|
|
|
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err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0);
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if (err) {
|
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nlmsg_free(msg);
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return;
|
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}
|
|
|
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genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink),
|
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msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
|
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}
|
|
|
|
static int devlink_nl_port_attrs_put(struct sk_buff *msg,
|
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struct devlink_port *devlink_port)
|
|
{
|
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struct devlink_port_attrs *attrs = &devlink_port->attrs;
|
|
|
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if (!attrs->set)
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return 0;
|
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if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour))
|
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return -EMSGSIZE;
|
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, attrs->port_number))
|
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return -EMSGSIZE;
|
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if (!attrs->split)
|
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return 0;
|
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, attrs->port_number))
|
|
return -EMSGSIZE;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER,
|
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attrs->split_subport_number))
|
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return -EMSGSIZE;
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink,
|
|
struct devlink_port *devlink_port,
|
|
enum devlink_command cmd, u32 portid,
|
|
u32 seq, int flags)
|
|
{
|
|
void *hdr;
|
|
|
|
hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
|
|
if (!hdr)
|
|
return -EMSGSIZE;
|
|
|
|
if (devlink_nl_put_handle(msg, devlink))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type))
|
|
goto nla_put_failure;
|
|
if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET &&
|
|
nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE,
|
|
devlink_port->desired_type))
|
|
goto nla_put_failure;
|
|
if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) {
|
|
struct net_device *netdev = devlink_port->type_dev;
|
|
|
|
if (netdev &&
|
|
(nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX,
|
|
netdev->ifindex) ||
|
|
nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME,
|
|
netdev->name)))
|
|
goto nla_put_failure;
|
|
}
|
|
if (devlink_port->type == DEVLINK_PORT_TYPE_IB) {
|
|
struct ib_device *ibdev = devlink_port->type_dev;
|
|
|
|
if (ibdev &&
|
|
nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME,
|
|
ibdev->name))
|
|
goto nla_put_failure;
|
|
}
|
|
if (devlink_nl_port_attrs_put(msg, devlink_port))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static void devlink_port_notify(struct devlink_port *devlink_port,
|
|
enum devlink_command cmd)
|
|
{
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
struct sk_buff *msg;
|
|
int err;
|
|
|
|
if (!devlink_port->registered)
|
|
return;
|
|
|
|
WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL);
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return;
|
|
|
|
err = devlink_nl_port_fill(msg, devlink, devlink_port, cmd, 0, 0, 0);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return;
|
|
}
|
|
|
|
genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink),
|
|
msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
|
|
}
|
|
|
|
static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct sk_buff *msg;
|
|
int err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW,
|
|
info->snd_portid, info->snd_seq, 0);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct devlink *devlink;
|
|
int start = cb->args[0];
|
|
int idx = 0;
|
|
int err;
|
|
|
|
mutex_lock(&devlink_mutex);
|
|
list_for_each_entry(devlink, &devlink_list, list) {
|
|
if (!net_eq(devlink_net(devlink), sock_net(msg->sk)))
|
|
continue;
|
|
if (idx < start) {
|
|
idx++;
|
|
continue;
|
|
}
|
|
err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq, NLM_F_MULTI);
|
|
if (err)
|
|
goto out;
|
|
idx++;
|
|
}
|
|
out:
|
|
mutex_unlock(&devlink_mutex);
|
|
|
|
cb->args[0] = idx;
|
|
return msg->len;
|
|
}
|
|
|
|
static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[0];
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
struct sk_buff *msg;
|
|
int err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = devlink_nl_port_fill(msg, devlink, devlink_port,
|
|
DEVLINK_CMD_PORT_NEW,
|
|
info->snd_portid, info->snd_seq, 0);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct devlink *devlink;
|
|
struct devlink_port *devlink_port;
|
|
int start = cb->args[0];
|
|
int idx = 0;
|
|
int err;
|
|
|
|
mutex_lock(&devlink_mutex);
|
|
list_for_each_entry(devlink, &devlink_list, list) {
|
|
if (!net_eq(devlink_net(devlink), sock_net(msg->sk)))
|
|
continue;
|
|
mutex_lock(&devlink->lock);
|
|
list_for_each_entry(devlink_port, &devlink->port_list, list) {
|
|
if (idx < start) {
|
|
idx++;
|
|
continue;
|
|
}
|
|
err = devlink_nl_port_fill(msg, devlink, devlink_port,
|
|
DEVLINK_CMD_NEW,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq,
|
|
NLM_F_MULTI);
|
|
if (err) {
|
|
mutex_unlock(&devlink->lock);
|
|
goto out;
|
|
}
|
|
idx++;
|
|
}
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
out:
|
|
mutex_unlock(&devlink_mutex);
|
|
|
|
cb->args[0] = idx;
|
|
return msg->len;
|
|
}
|
|
|
|
static int devlink_port_type_set(struct devlink *devlink,
|
|
struct devlink_port *devlink_port,
|
|
enum devlink_port_type port_type)
|
|
|
|
{
|
|
int err;
|
|
|
|
if (devlink->ops && devlink->ops->port_type_set) {
|
|
if (port_type == DEVLINK_PORT_TYPE_NOTSET)
|
|
return -EINVAL;
|
|
if (port_type == devlink_port->type)
|
|
return 0;
|
|
err = devlink->ops->port_type_set(devlink_port, port_type);
|
|
if (err)
|
|
return err;
|
|
devlink_port->desired_type = port_type;
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
|
|
return 0;
|
|
}
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[0];
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
int err;
|
|
|
|
if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) {
|
|
enum devlink_port_type port_type;
|
|
|
|
port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]);
|
|
err = devlink_port_type_set(devlink, devlink_port, port_type);
|
|
if (err)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_port_split(struct devlink *devlink,
|
|
u32 port_index, u32 count)
|
|
|
|
{
|
|
if (devlink->ops && devlink->ops->port_split)
|
|
return devlink->ops->port_split(devlink, port_index, count);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
u32 port_index;
|
|
u32 count;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_PORT_INDEX] ||
|
|
!info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT])
|
|
return -EINVAL;
|
|
|
|
port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]);
|
|
count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]);
|
|
return devlink_port_split(devlink, port_index, count);
|
|
}
|
|
|
|
static int devlink_port_unsplit(struct devlink *devlink, u32 port_index)
|
|
|
|
{
|
|
if (devlink->ops && devlink->ops->port_unsplit)
|
|
return devlink->ops->port_unsplit(devlink, port_index);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
u32 port_index;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_PORT_INDEX])
|
|
return -EINVAL;
|
|
|
|
port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]);
|
|
return devlink_port_unsplit(devlink, port_index);
|
|
}
|
|
|
|
static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink,
|
|
struct devlink_sb *devlink_sb,
|
|
enum devlink_command cmd, u32 portid,
|
|
u32 seq, int flags)
|
|
{
|
|
void *hdr;
|
|
|
|
hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
|
|
if (!hdr)
|
|
return -EMSGSIZE;
|
|
|
|
if (devlink_nl_put_handle(msg, devlink))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT,
|
|
devlink_sb->ingress_pools_count))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT,
|
|
devlink_sb->egress_pools_count))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT,
|
|
devlink_sb->ingress_tc_count))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT,
|
|
devlink_sb->egress_tc_count))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
struct sk_buff *msg;
|
|
int err;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = devlink_nl_sb_fill(msg, devlink, devlink_sb,
|
|
DEVLINK_CMD_SB_NEW,
|
|
info->snd_portid, info->snd_seq, 0);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct devlink *devlink;
|
|
struct devlink_sb *devlink_sb;
|
|
int start = cb->args[0];
|
|
int idx = 0;
|
|
int err;
|
|
|
|
mutex_lock(&devlink_mutex);
|
|
list_for_each_entry(devlink, &devlink_list, list) {
|
|
if (!net_eq(devlink_net(devlink), sock_net(msg->sk)))
|
|
continue;
|
|
mutex_lock(&devlink->lock);
|
|
list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
|
|
if (idx < start) {
|
|
idx++;
|
|
continue;
|
|
}
|
|
err = devlink_nl_sb_fill(msg, devlink, devlink_sb,
|
|
DEVLINK_CMD_SB_NEW,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq,
|
|
NLM_F_MULTI);
|
|
if (err) {
|
|
mutex_unlock(&devlink->lock);
|
|
goto out;
|
|
}
|
|
idx++;
|
|
}
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
out:
|
|
mutex_unlock(&devlink_mutex);
|
|
|
|
cb->args[0] = idx;
|
|
return msg->len;
|
|
}
|
|
|
|
static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink,
|
|
struct devlink_sb *devlink_sb,
|
|
u16 pool_index, enum devlink_command cmd,
|
|
u32 portid, u32 seq, int flags)
|
|
{
|
|
struct devlink_sb_pool_info pool_info;
|
|
void *hdr;
|
|
int err;
|
|
|
|
err = devlink->ops->sb_pool_get(devlink, devlink_sb->index,
|
|
pool_index, &pool_info);
|
|
if (err)
|
|
return err;
|
|
|
|
hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
|
|
if (!hdr)
|
|
return -EMSGSIZE;
|
|
|
|
if (devlink_nl_put_handle(msg, devlink))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size))
|
|
goto nla_put_failure;
|
|
if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE,
|
|
pool_info.threshold_type))
|
|
goto nla_put_failure;
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
struct sk_buff *msg;
|
|
u16 pool_index;
|
|
int err;
|
|
|
|
err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
|
|
&pool_index);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!devlink->ops || !devlink->ops->sb_pool_get)
|
|
return -EOPNOTSUPP;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index,
|
|
DEVLINK_CMD_SB_POOL_NEW,
|
|
info->snd_portid, info->snd_seq, 0);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx,
|
|
struct devlink *devlink,
|
|
struct devlink_sb *devlink_sb,
|
|
u32 portid, u32 seq)
|
|
{
|
|
u16 pool_count = devlink_sb_pool_count(devlink_sb);
|
|
u16 pool_index;
|
|
int err;
|
|
|
|
for (pool_index = 0; pool_index < pool_count; pool_index++) {
|
|
if (*p_idx < start) {
|
|
(*p_idx)++;
|
|
continue;
|
|
}
|
|
err = devlink_nl_sb_pool_fill(msg, devlink,
|
|
devlink_sb,
|
|
pool_index,
|
|
DEVLINK_CMD_SB_POOL_NEW,
|
|
portid, seq, NLM_F_MULTI);
|
|
if (err)
|
|
return err;
|
|
(*p_idx)++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct devlink *devlink;
|
|
struct devlink_sb *devlink_sb;
|
|
int start = cb->args[0];
|
|
int idx = 0;
|
|
int err;
|
|
|
|
mutex_lock(&devlink_mutex);
|
|
list_for_each_entry(devlink, &devlink_list, list) {
|
|
if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) ||
|
|
!devlink->ops || !devlink->ops->sb_pool_get)
|
|
continue;
|
|
mutex_lock(&devlink->lock);
|
|
list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
|
|
err = __sb_pool_get_dumpit(msg, start, &idx, devlink,
|
|
devlink_sb,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq);
|
|
if (err && err != -EOPNOTSUPP) {
|
|
mutex_unlock(&devlink->lock);
|
|
goto out;
|
|
}
|
|
}
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
out:
|
|
mutex_unlock(&devlink_mutex);
|
|
|
|
cb->args[0] = idx;
|
|
return msg->len;
|
|
}
|
|
|
|
static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index,
|
|
u16 pool_index, u32 size,
|
|
enum devlink_sb_threshold_type threshold_type)
|
|
|
|
{
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
|
|
if (ops && ops->sb_pool_set)
|
|
return ops->sb_pool_set(devlink, sb_index, pool_index,
|
|
size, threshold_type);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
enum devlink_sb_threshold_type threshold_type;
|
|
u16 pool_index;
|
|
u32 size;
|
|
int err;
|
|
|
|
err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
|
|
&pool_index);
|
|
if (err)
|
|
return err;
|
|
|
|
err = devlink_sb_th_type_get_from_info(info, &threshold_type);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE])
|
|
return -EINVAL;
|
|
|
|
size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]);
|
|
return devlink_sb_pool_set(devlink, devlink_sb->index,
|
|
pool_index, size, threshold_type);
|
|
}
|
|
|
|
static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg,
|
|
struct devlink *devlink,
|
|
struct devlink_port *devlink_port,
|
|
struct devlink_sb *devlink_sb,
|
|
u16 pool_index,
|
|
enum devlink_command cmd,
|
|
u32 portid, u32 seq, int flags)
|
|
{
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
u32 threshold;
|
|
void *hdr;
|
|
int err;
|
|
|
|
err = ops->sb_port_pool_get(devlink_port, devlink_sb->index,
|
|
pool_index, &threshold);
|
|
if (err)
|
|
return err;
|
|
|
|
hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
|
|
if (!hdr)
|
|
return -EMSGSIZE;
|
|
|
|
if (devlink_nl_put_handle(msg, devlink))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold))
|
|
goto nla_put_failure;
|
|
|
|
if (ops->sb_occ_port_pool_get) {
|
|
u32 cur;
|
|
u32 max;
|
|
|
|
err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index,
|
|
pool_index, &cur, &max);
|
|
if (err && err != -EOPNOTSUPP)
|
|
return err;
|
|
if (!err) {
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max))
|
|
goto nla_put_failure;
|
|
}
|
|
}
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[0];
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
struct sk_buff *msg;
|
|
u16 pool_index;
|
|
int err;
|
|
|
|
err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
|
|
&pool_index);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!devlink->ops || !devlink->ops->sb_port_pool_get)
|
|
return -EOPNOTSUPP;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port,
|
|
devlink_sb, pool_index,
|
|
DEVLINK_CMD_SB_PORT_POOL_NEW,
|
|
info->snd_portid, info->snd_seq, 0);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx,
|
|
struct devlink *devlink,
|
|
struct devlink_sb *devlink_sb,
|
|
u32 portid, u32 seq)
|
|
{
|
|
struct devlink_port *devlink_port;
|
|
u16 pool_count = devlink_sb_pool_count(devlink_sb);
|
|
u16 pool_index;
|
|
int err;
|
|
|
|
list_for_each_entry(devlink_port, &devlink->port_list, list) {
|
|
for (pool_index = 0; pool_index < pool_count; pool_index++) {
|
|
if (*p_idx < start) {
|
|
(*p_idx)++;
|
|
continue;
|
|
}
|
|
err = devlink_nl_sb_port_pool_fill(msg, devlink,
|
|
devlink_port,
|
|
devlink_sb,
|
|
pool_index,
|
|
DEVLINK_CMD_SB_PORT_POOL_NEW,
|
|
portid, seq,
|
|
NLM_F_MULTI);
|
|
if (err)
|
|
return err;
|
|
(*p_idx)++;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct devlink *devlink;
|
|
struct devlink_sb *devlink_sb;
|
|
int start = cb->args[0];
|
|
int idx = 0;
|
|
int err;
|
|
|
|
mutex_lock(&devlink_mutex);
|
|
list_for_each_entry(devlink, &devlink_list, list) {
|
|
if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) ||
|
|
!devlink->ops || !devlink->ops->sb_port_pool_get)
|
|
continue;
|
|
mutex_lock(&devlink->lock);
|
|
list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
|
|
err = __sb_port_pool_get_dumpit(msg, start, &idx,
|
|
devlink, devlink_sb,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq);
|
|
if (err && err != -EOPNOTSUPP) {
|
|
mutex_unlock(&devlink->lock);
|
|
goto out;
|
|
}
|
|
}
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
out:
|
|
mutex_unlock(&devlink_mutex);
|
|
|
|
cb->args[0] = idx;
|
|
return msg->len;
|
|
}
|
|
|
|
static int devlink_sb_port_pool_set(struct devlink_port *devlink_port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 threshold)
|
|
|
|
{
|
|
const struct devlink_ops *ops = devlink_port->devlink->ops;
|
|
|
|
if (ops && ops->sb_port_pool_set)
|
|
return ops->sb_port_pool_set(devlink_port, sb_index,
|
|
pool_index, threshold);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[0];
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
u16 pool_index;
|
|
u32 threshold;
|
|
int err;
|
|
|
|
err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
|
|
&pool_index);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD])
|
|
return -EINVAL;
|
|
|
|
threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]);
|
|
return devlink_sb_port_pool_set(devlink_port, devlink_sb->index,
|
|
pool_index, threshold);
|
|
}
|
|
|
|
static int
|
|
devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink,
|
|
struct devlink_port *devlink_port,
|
|
struct devlink_sb *devlink_sb, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
enum devlink_command cmd,
|
|
u32 portid, u32 seq, int flags)
|
|
{
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
u16 pool_index;
|
|
u32 threshold;
|
|
void *hdr;
|
|
int err;
|
|
|
|
err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index,
|
|
tc_index, pool_type,
|
|
&pool_index, &threshold);
|
|
if (err)
|
|
return err;
|
|
|
|
hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
|
|
if (!hdr)
|
|
return -EMSGSIZE;
|
|
|
|
if (devlink_nl_put_handle(msg, devlink))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type))
|
|
goto nla_put_failure;
|
|
if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold))
|
|
goto nla_put_failure;
|
|
|
|
if (ops->sb_occ_tc_port_bind_get) {
|
|
u32 cur;
|
|
u32 max;
|
|
|
|
err = ops->sb_occ_tc_port_bind_get(devlink_port,
|
|
devlink_sb->index,
|
|
tc_index, pool_type,
|
|
&cur, &max);
|
|
if (err && err != -EOPNOTSUPP)
|
|
return err;
|
|
if (!err) {
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur))
|
|
goto nla_put_failure;
|
|
if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max))
|
|
goto nla_put_failure;
|
|
}
|
|
}
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[0];
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
struct sk_buff *msg;
|
|
enum devlink_sb_pool_type pool_type;
|
|
u16 tc_index;
|
|
int err;
|
|
|
|
err = devlink_sb_pool_type_get_from_info(info, &pool_type);
|
|
if (err)
|
|
return err;
|
|
|
|
err = devlink_sb_tc_index_get_from_info(devlink_sb, info,
|
|
pool_type, &tc_index);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!devlink->ops || !devlink->ops->sb_tc_pool_bind_get)
|
|
return -EOPNOTSUPP;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port,
|
|
devlink_sb, tc_index, pool_type,
|
|
DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
|
|
info->snd_portid,
|
|
info->snd_seq, 0);
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg,
|
|
int start, int *p_idx,
|
|
struct devlink *devlink,
|
|
struct devlink_sb *devlink_sb,
|
|
u32 portid, u32 seq)
|
|
{
|
|
struct devlink_port *devlink_port;
|
|
u16 tc_index;
|
|
int err;
|
|
|
|
list_for_each_entry(devlink_port, &devlink->port_list, list) {
|
|
for (tc_index = 0;
|
|
tc_index < devlink_sb->ingress_tc_count; tc_index++) {
|
|
if (*p_idx < start) {
|
|
(*p_idx)++;
|
|
continue;
|
|
}
|
|
err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink,
|
|
devlink_port,
|
|
devlink_sb,
|
|
tc_index,
|
|
DEVLINK_SB_POOL_TYPE_INGRESS,
|
|
DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
|
|
portid, seq,
|
|
NLM_F_MULTI);
|
|
if (err)
|
|
return err;
|
|
(*p_idx)++;
|
|
}
|
|
for (tc_index = 0;
|
|
tc_index < devlink_sb->egress_tc_count; tc_index++) {
|
|
if (*p_idx < start) {
|
|
(*p_idx)++;
|
|
continue;
|
|
}
|
|
err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink,
|
|
devlink_port,
|
|
devlink_sb,
|
|
tc_index,
|
|
DEVLINK_SB_POOL_TYPE_EGRESS,
|
|
DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
|
|
portid, seq,
|
|
NLM_F_MULTI);
|
|
if (err)
|
|
return err;
|
|
(*p_idx)++;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg,
|
|
struct netlink_callback *cb)
|
|
{
|
|
struct devlink *devlink;
|
|
struct devlink_sb *devlink_sb;
|
|
int start = cb->args[0];
|
|
int idx = 0;
|
|
int err;
|
|
|
|
mutex_lock(&devlink_mutex);
|
|
list_for_each_entry(devlink, &devlink_list, list) {
|
|
if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) ||
|
|
!devlink->ops || !devlink->ops->sb_tc_pool_bind_get)
|
|
continue;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
list_for_each_entry(devlink_sb, &devlink->sb_list, list) {
|
|
err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx,
|
|
devlink,
|
|
devlink_sb,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq);
|
|
if (err && err != -EOPNOTSUPP) {
|
|
mutex_unlock(&devlink->lock);
|
|
goto out;
|
|
}
|
|
}
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
out:
|
|
mutex_unlock(&devlink_mutex);
|
|
|
|
cb->args[0] = idx;
|
|
return msg->len;
|
|
}
|
|
|
|
static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u16 pool_index, u32 threshold)
|
|
|
|
{
|
|
const struct devlink_ops *ops = devlink_port->devlink->ops;
|
|
|
|
if (ops && ops->sb_tc_pool_bind_set)
|
|
return ops->sb_tc_pool_bind_set(devlink_port, sb_index,
|
|
tc_index, pool_type,
|
|
pool_index, threshold);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink_port *devlink_port = info->user_ptr[0];
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
enum devlink_sb_pool_type pool_type;
|
|
u16 tc_index;
|
|
u16 pool_index;
|
|
u32 threshold;
|
|
int err;
|
|
|
|
err = devlink_sb_pool_type_get_from_info(info, &pool_type);
|
|
if (err)
|
|
return err;
|
|
|
|
err = devlink_sb_tc_index_get_from_info(devlink_sb, info,
|
|
pool_type, &tc_index);
|
|
if (err)
|
|
return err;
|
|
|
|
err = devlink_sb_pool_index_get_from_info(devlink_sb, info,
|
|
&pool_index);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD])
|
|
return -EINVAL;
|
|
|
|
threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]);
|
|
return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index,
|
|
tc_index, pool_type,
|
|
pool_index, threshold);
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
|
|
if (ops && ops->sb_occ_snapshot)
|
|
return ops->sb_occ_snapshot(devlink, devlink_sb->index);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_sb *devlink_sb = info->user_ptr[1];
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
|
|
if (ops && ops->sb_occ_max_clear)
|
|
return ops->sb_occ_max_clear(devlink, devlink_sb->index);
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink,
|
|
enum devlink_command cmd, u32 portid,
|
|
u32 seq, int flags)
|
|
{
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
u8 inline_mode, encap_mode;
|
|
void *hdr;
|
|
int err = 0;
|
|
u16 mode;
|
|
|
|
hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
|
|
if (!hdr)
|
|
return -EMSGSIZE;
|
|
|
|
err = devlink_nl_put_handle(msg, devlink);
|
|
if (err)
|
|
goto nla_put_failure;
|
|
|
|
if (ops->eswitch_mode_get) {
|
|
err = ops->eswitch_mode_get(devlink, &mode);
|
|
if (err)
|
|
goto nla_put_failure;
|
|
err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode);
|
|
if (err)
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (ops->eswitch_inline_mode_get) {
|
|
err = ops->eswitch_inline_mode_get(devlink, &inline_mode);
|
|
if (err)
|
|
goto nla_put_failure;
|
|
err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE,
|
|
inline_mode);
|
|
if (err)
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
if (ops->eswitch_encap_mode_get) {
|
|
err = ops->eswitch_encap_mode_get(devlink, &encap_mode);
|
|
if (err)
|
|
goto nla_put_failure;
|
|
err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode);
|
|
if (err)
|
|
goto nla_put_failure;
|
|
}
|
|
|
|
genlmsg_end(msg, hdr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
genlmsg_cancel(msg, hdr);
|
|
return err;
|
|
}
|
|
|
|
static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
struct sk_buff *msg;
|
|
int err;
|
|
|
|
if (!ops)
|
|
return -EOPNOTSUPP;
|
|
|
|
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!msg)
|
|
return -ENOMEM;
|
|
|
|
err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET,
|
|
info->snd_portid, info->snd_seq, 0);
|
|
|
|
if (err) {
|
|
nlmsg_free(msg);
|
|
return err;
|
|
}
|
|
|
|
return genlmsg_reply(msg, info);
|
|
}
|
|
|
|
static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
u8 inline_mode, encap_mode;
|
|
int err = 0;
|
|
u16 mode;
|
|
|
|
if (!ops)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) {
|
|
if (!ops->eswitch_mode_set)
|
|
return -EOPNOTSUPP;
|
|
mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]);
|
|
err = ops->eswitch_mode_set(devlink, mode);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) {
|
|
if (!ops->eswitch_inline_mode_set)
|
|
return -EOPNOTSUPP;
|
|
inline_mode = nla_get_u8(
|
|
info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]);
|
|
err = ops->eswitch_inline_mode_set(devlink, inline_mode);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) {
|
|
if (!ops->eswitch_encap_mode_set)
|
|
return -EOPNOTSUPP;
|
|
encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]);
|
|
err = ops->eswitch_encap_mode_set(devlink, encap_mode);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int devlink_dpipe_match_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_match *match)
|
|
{
|
|
struct devlink_dpipe_header *header = match->header;
|
|
struct devlink_dpipe_field *field = &header->fields[match->field_id];
|
|
struct nlattr *match_attr;
|
|
|
|
match_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_MATCH);
|
|
if (!match_attr)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
|
|
nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(skb, match_attr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, match_attr);
|
|
return -EMSGSIZE;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_match_put);
|
|
|
|
static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct nlattr *matches_attr;
|
|
|
|
matches_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_MATCHES);
|
|
if (!matches_attr)
|
|
return -EMSGSIZE;
|
|
|
|
if (table->table_ops->matches_dump(table->priv, skb))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(skb, matches_attr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, matches_attr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
int devlink_dpipe_action_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_action *action)
|
|
{
|
|
struct devlink_dpipe_header *header = action->header;
|
|
struct devlink_dpipe_field *field = &header->fields[action->field_id];
|
|
struct nlattr *action_attr;
|
|
|
|
action_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ACTION);
|
|
if (!action_attr)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
|
|
nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(skb, action_attr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, action_attr);
|
|
return -EMSGSIZE;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_action_put);
|
|
|
|
static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct nlattr *actions_attr;
|
|
|
|
actions_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_ACTIONS);
|
|
if (!actions_attr)
|
|
return -EMSGSIZE;
|
|
|
|
if (table->table_ops->actions_dump(table->priv, skb))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(skb, actions_attr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, actions_attr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int devlink_dpipe_table_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_table *table)
|
|
{
|
|
struct nlattr *table_attr;
|
|
u64 table_size;
|
|
|
|
table_size = table->table_ops->size_get(table->priv);
|
|
table_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE);
|
|
if (!table_attr)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) ||
|
|
nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size,
|
|
DEVLINK_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED,
|
|
table->counters_enabled))
|
|
goto nla_put_failure;
|
|
|
|
if (table->resource_valid) {
|
|
if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID,
|
|
table->resource_id, DEVLINK_ATTR_PAD) ||
|
|
nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS,
|
|
table->resource_units, DEVLINK_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
}
|
|
if (devlink_dpipe_matches_put(table, skb))
|
|
goto nla_put_failure;
|
|
|
|
if (devlink_dpipe_actions_put(table, skb))
|
|
goto nla_put_failure;
|
|
|
|
nla_nest_end(skb, table_attr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, table_attr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb,
|
|
struct genl_info *info)
|
|
{
|
|
int err;
|
|
|
|
if (*pskb) {
|
|
err = genlmsg_reply(*pskb, info);
|
|
if (err)
|
|
return err;
|
|
}
|
|
*pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
|
|
if (!*pskb)
|
|
return -ENOMEM;
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_dpipe_tables_fill(struct genl_info *info,
|
|
enum devlink_command cmd, int flags,
|
|
struct list_head *dpipe_tables,
|
|
const char *table_name)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_dpipe_table *table;
|
|
struct nlattr *tables_attr;
|
|
struct sk_buff *skb = NULL;
|
|
struct nlmsghdr *nlh;
|
|
bool incomplete;
|
|
void *hdr;
|
|
int i;
|
|
int err;
|
|
|
|
table = list_first_entry(dpipe_tables,
|
|
struct devlink_dpipe_table, list);
|
|
start_again:
|
|
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
|
|
if (err)
|
|
return err;
|
|
|
|
hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
|
|
&devlink_nl_family, NLM_F_MULTI, cmd);
|
|
if (!hdr) {
|
|
nlmsg_free(skb);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
if (devlink_nl_put_handle(skb, devlink))
|
|
goto nla_put_failure;
|
|
tables_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLES);
|
|
if (!tables_attr)
|
|
goto nla_put_failure;
|
|
|
|
i = 0;
|
|
incomplete = false;
|
|
list_for_each_entry_from(table, dpipe_tables, list) {
|
|
if (!table_name) {
|
|
err = devlink_dpipe_table_put(skb, table);
|
|
if (err) {
|
|
if (!i)
|
|
goto err_table_put;
|
|
incomplete = true;
|
|
break;
|
|
}
|
|
} else {
|
|
if (!strcmp(table->name, table_name)) {
|
|
err = devlink_dpipe_table_put(skb, table);
|
|
if (err)
|
|
break;
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
|
|
nla_nest_end(skb, tables_attr);
|
|
genlmsg_end(skb, hdr);
|
|
if (incomplete)
|
|
goto start_again;
|
|
|
|
send_done:
|
|
nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
|
|
NLMSG_DONE, 0, flags | NLM_F_MULTI);
|
|
if (!nlh) {
|
|
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
|
|
if (err)
|
|
return err;
|
|
goto send_done;
|
|
}
|
|
|
|
return genlmsg_reply(skb, info);
|
|
|
|
nla_put_failure:
|
|
err = -EMSGSIZE;
|
|
err_table_put:
|
|
nlmsg_free(skb);
|
|
return err;
|
|
}
|
|
|
|
static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
const char *table_name = NULL;
|
|
|
|
if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME])
|
|
table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
|
|
|
|
return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0,
|
|
&devlink->dpipe_table_list,
|
|
table_name);
|
|
}
|
|
|
|
static int devlink_dpipe_value_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_value *value)
|
|
{
|
|
if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE,
|
|
value->value_size, value->value))
|
|
return -EMSGSIZE;
|
|
if (value->mask)
|
|
if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK,
|
|
value->value_size, value->mask))
|
|
return -EMSGSIZE;
|
|
if (value->mapping_valid)
|
|
if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING,
|
|
value->mapping_value))
|
|
return -EMSGSIZE;
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_dpipe_action_value_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_value *value)
|
|
{
|
|
if (!value->action)
|
|
return -EINVAL;
|
|
if (devlink_dpipe_action_put(skb, value->action))
|
|
return -EMSGSIZE;
|
|
if (devlink_dpipe_value_put(skb, value))
|
|
return -EMSGSIZE;
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_dpipe_action_values_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_value *values,
|
|
unsigned int values_count)
|
|
{
|
|
struct nlattr *action_attr;
|
|
int i;
|
|
int err;
|
|
|
|
for (i = 0; i < values_count; i++) {
|
|
action_attr = nla_nest_start(skb,
|
|
DEVLINK_ATTR_DPIPE_ACTION_VALUE);
|
|
if (!action_attr)
|
|
return -EMSGSIZE;
|
|
err = devlink_dpipe_action_value_put(skb, &values[i]);
|
|
if (err)
|
|
goto err_action_value_put;
|
|
nla_nest_end(skb, action_attr);
|
|
}
|
|
return 0;
|
|
|
|
err_action_value_put:
|
|
nla_nest_cancel(skb, action_attr);
|
|
return err;
|
|
}
|
|
|
|
static int devlink_dpipe_match_value_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_value *value)
|
|
{
|
|
if (!value->match)
|
|
return -EINVAL;
|
|
if (devlink_dpipe_match_put(skb, value->match))
|
|
return -EMSGSIZE;
|
|
if (devlink_dpipe_value_put(skb, value))
|
|
return -EMSGSIZE;
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_dpipe_match_values_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_value *values,
|
|
unsigned int values_count)
|
|
{
|
|
struct nlattr *match_attr;
|
|
int i;
|
|
int err;
|
|
|
|
for (i = 0; i < values_count; i++) {
|
|
match_attr = nla_nest_start(skb,
|
|
DEVLINK_ATTR_DPIPE_MATCH_VALUE);
|
|
if (!match_attr)
|
|
return -EMSGSIZE;
|
|
err = devlink_dpipe_match_value_put(skb, &values[i]);
|
|
if (err)
|
|
goto err_match_value_put;
|
|
nla_nest_end(skb, match_attr);
|
|
}
|
|
return 0;
|
|
|
|
err_match_value_put:
|
|
nla_nest_cancel(skb, match_attr);
|
|
return err;
|
|
}
|
|
|
|
static int devlink_dpipe_entry_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_entry *entry)
|
|
{
|
|
struct nlattr *entry_attr, *matches_attr, *actions_attr;
|
|
int err;
|
|
|
|
entry_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ENTRY);
|
|
if (!entry_attr)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index,
|
|
DEVLINK_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
if (entry->counter_valid)
|
|
if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER,
|
|
entry->counter, DEVLINK_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
|
|
matches_attr = nla_nest_start(skb,
|
|
DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES);
|
|
if (!matches_attr)
|
|
goto nla_put_failure;
|
|
|
|
err = devlink_dpipe_match_values_put(skb, entry->match_values,
|
|
entry->match_values_count);
|
|
if (err) {
|
|
nla_nest_cancel(skb, matches_attr);
|
|
goto err_match_values_put;
|
|
}
|
|
nla_nest_end(skb, matches_attr);
|
|
|
|
actions_attr = nla_nest_start(skb,
|
|
DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES);
|
|
if (!actions_attr)
|
|
goto nla_put_failure;
|
|
|
|
err = devlink_dpipe_action_values_put(skb, entry->action_values,
|
|
entry->action_values_count);
|
|
if (err) {
|
|
nla_nest_cancel(skb, actions_attr);
|
|
goto err_action_values_put;
|
|
}
|
|
nla_nest_end(skb, actions_attr);
|
|
|
|
nla_nest_end(skb, entry_attr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
err = -EMSGSIZE;
|
|
err_match_values_put:
|
|
err_action_values_put:
|
|
nla_nest_cancel(skb, entry_attr);
|
|
return err;
|
|
}
|
|
|
|
static struct devlink_dpipe_table *
|
|
devlink_dpipe_table_find(struct list_head *dpipe_tables,
|
|
const char *table_name)
|
|
{
|
|
struct devlink_dpipe_table *table;
|
|
|
|
list_for_each_entry_rcu(table, dpipe_tables, list) {
|
|
if (!strcmp(table->name, table_name))
|
|
return table;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx)
|
|
{
|
|
struct devlink *devlink;
|
|
int err;
|
|
|
|
err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb,
|
|
dump_ctx->info);
|
|
if (err)
|
|
return err;
|
|
|
|
dump_ctx->hdr = genlmsg_put(dump_ctx->skb,
|
|
dump_ctx->info->snd_portid,
|
|
dump_ctx->info->snd_seq,
|
|
&devlink_nl_family, NLM_F_MULTI,
|
|
dump_ctx->cmd);
|
|
if (!dump_ctx->hdr)
|
|
goto nla_put_failure;
|
|
|
|
devlink = dump_ctx->info->user_ptr[0];
|
|
if (devlink_nl_put_handle(dump_ctx->skb, devlink))
|
|
goto nla_put_failure;
|
|
dump_ctx->nest = nla_nest_start(dump_ctx->skb,
|
|
DEVLINK_ATTR_DPIPE_ENTRIES);
|
|
if (!dump_ctx->nest)
|
|
goto nla_put_failure;
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nlmsg_free(dump_ctx->skb);
|
|
return -EMSGSIZE;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare);
|
|
|
|
int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
|
|
struct devlink_dpipe_entry *entry)
|
|
{
|
|
return devlink_dpipe_entry_put(dump_ctx->skb, entry);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append);
|
|
|
|
int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx)
|
|
{
|
|
nla_nest_end(dump_ctx->skb, dump_ctx->nest);
|
|
genlmsg_end(dump_ctx->skb, dump_ctx->hdr);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close);
|
|
|
|
void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry)
|
|
|
|
{
|
|
unsigned int value_count, value_index;
|
|
struct devlink_dpipe_value *value;
|
|
|
|
value = entry->action_values;
|
|
value_count = entry->action_values_count;
|
|
for (value_index = 0; value_index < value_count; value_index++) {
|
|
kfree(value[value_index].value);
|
|
kfree(value[value_index].mask);
|
|
}
|
|
|
|
value = entry->match_values;
|
|
value_count = entry->match_values_count;
|
|
for (value_index = 0; value_index < value_count; value_index++) {
|
|
kfree(value[value_index].value);
|
|
kfree(value[value_index].mask);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(devlink_dpipe_entry_clear);
|
|
|
|
static int devlink_dpipe_entries_fill(struct genl_info *info,
|
|
enum devlink_command cmd, int flags,
|
|
struct devlink_dpipe_table *table)
|
|
{
|
|
struct devlink_dpipe_dump_ctx dump_ctx;
|
|
struct nlmsghdr *nlh;
|
|
int err;
|
|
|
|
dump_ctx.skb = NULL;
|
|
dump_ctx.cmd = cmd;
|
|
dump_ctx.info = info;
|
|
|
|
err = table->table_ops->entries_dump(table->priv,
|
|
table->counters_enabled,
|
|
&dump_ctx);
|
|
if (err)
|
|
return err;
|
|
|
|
send_done:
|
|
nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq,
|
|
NLMSG_DONE, 0, flags | NLM_F_MULTI);
|
|
if (!nlh) {
|
|
err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info);
|
|
if (err)
|
|
return err;
|
|
goto send_done;
|
|
}
|
|
return genlmsg_reply(dump_ctx.skb, info);
|
|
}
|
|
|
|
static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_dpipe_table *table;
|
|
const char *table_name;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME])
|
|
return -EINVAL;
|
|
|
|
table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
|
|
table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
|
|
table_name);
|
|
if (!table)
|
|
return -EINVAL;
|
|
|
|
if (!table->table_ops->entries_dump)
|
|
return -EINVAL;
|
|
|
|
return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET,
|
|
0, table);
|
|
}
|
|
|
|
static int devlink_dpipe_fields_put(struct sk_buff *skb,
|
|
const struct devlink_dpipe_header *header)
|
|
{
|
|
struct devlink_dpipe_field *field;
|
|
struct nlattr *field_attr;
|
|
int i;
|
|
|
|
for (i = 0; i < header->fields_count; i++) {
|
|
field = &header->fields[i];
|
|
field_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_FIELD);
|
|
if (!field_attr)
|
|
return -EMSGSIZE;
|
|
if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type))
|
|
goto nla_put_failure;
|
|
nla_nest_end(skb, field_attr);
|
|
}
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, field_attr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int devlink_dpipe_header_put(struct sk_buff *skb,
|
|
struct devlink_dpipe_header *header)
|
|
{
|
|
struct nlattr *fields_attr, *header_attr;
|
|
int err;
|
|
|
|
header_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER);
|
|
if (!header_attr)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) ||
|
|
nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) ||
|
|
nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
|
|
goto nla_put_failure;
|
|
|
|
fields_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER_FIELDS);
|
|
if (!fields_attr)
|
|
goto nla_put_failure;
|
|
|
|
err = devlink_dpipe_fields_put(skb, header);
|
|
if (err) {
|
|
nla_nest_cancel(skb, fields_attr);
|
|
goto nla_put_failure;
|
|
}
|
|
nla_nest_end(skb, fields_attr);
|
|
nla_nest_end(skb, header_attr);
|
|
return 0;
|
|
|
|
nla_put_failure:
|
|
err = -EMSGSIZE;
|
|
nla_nest_cancel(skb, header_attr);
|
|
return err;
|
|
}
|
|
|
|
static int devlink_dpipe_headers_fill(struct genl_info *info,
|
|
enum devlink_command cmd, int flags,
|
|
struct devlink_dpipe_headers *
|
|
dpipe_headers)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct nlattr *headers_attr;
|
|
struct sk_buff *skb = NULL;
|
|
struct nlmsghdr *nlh;
|
|
void *hdr;
|
|
int i, j;
|
|
int err;
|
|
|
|
i = 0;
|
|
start_again:
|
|
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
|
|
if (err)
|
|
return err;
|
|
|
|
hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
|
|
&devlink_nl_family, NLM_F_MULTI, cmd);
|
|
if (!hdr) {
|
|
nlmsg_free(skb);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
if (devlink_nl_put_handle(skb, devlink))
|
|
goto nla_put_failure;
|
|
headers_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADERS);
|
|
if (!headers_attr)
|
|
goto nla_put_failure;
|
|
|
|
j = 0;
|
|
for (; i < dpipe_headers->headers_count; i++) {
|
|
err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]);
|
|
if (err) {
|
|
if (!j)
|
|
goto err_table_put;
|
|
break;
|
|
}
|
|
j++;
|
|
}
|
|
nla_nest_end(skb, headers_attr);
|
|
genlmsg_end(skb, hdr);
|
|
if (i != dpipe_headers->headers_count)
|
|
goto start_again;
|
|
|
|
send_done:
|
|
nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
|
|
NLMSG_DONE, 0, flags | NLM_F_MULTI);
|
|
if (!nlh) {
|
|
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
|
|
if (err)
|
|
return err;
|
|
goto send_done;
|
|
}
|
|
return genlmsg_reply(skb, info);
|
|
|
|
nla_put_failure:
|
|
err = -EMSGSIZE;
|
|
err_table_put:
|
|
nlmsg_free(skb);
|
|
return err;
|
|
}
|
|
|
|
static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
|
|
if (!devlink->dpipe_headers)
|
|
return -EOPNOTSUPP;
|
|
return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET,
|
|
0, devlink->dpipe_headers);
|
|
}
|
|
|
|
static int devlink_dpipe_table_counters_set(struct devlink *devlink,
|
|
const char *table_name,
|
|
bool enable)
|
|
{
|
|
struct devlink_dpipe_table *table;
|
|
|
|
table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
|
|
table_name);
|
|
if (!table)
|
|
return -EINVAL;
|
|
|
|
if (table->counter_control_extern)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!(table->counters_enabled ^ enable))
|
|
return 0;
|
|
|
|
table->counters_enabled = enable;
|
|
if (table->table_ops->counters_set_update)
|
|
table->table_ops->counters_set_update(table->priv, enable);
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
const char *table_name;
|
|
bool counters_enable;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] ||
|
|
!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED])
|
|
return -EINVAL;
|
|
|
|
table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]);
|
|
counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]);
|
|
|
|
return devlink_dpipe_table_counters_set(devlink, table_name,
|
|
counters_enable);
|
|
}
|
|
|
|
static struct devlink_resource *
|
|
devlink_resource_find(struct devlink *devlink,
|
|
struct devlink_resource *resource, u64 resource_id)
|
|
{
|
|
struct list_head *resource_list;
|
|
|
|
if (resource)
|
|
resource_list = &resource->resource_list;
|
|
else
|
|
resource_list = &devlink->resource_list;
|
|
|
|
list_for_each_entry(resource, resource_list, list) {
|
|
struct devlink_resource *child_resource;
|
|
|
|
if (resource->id == resource_id)
|
|
return resource;
|
|
|
|
child_resource = devlink_resource_find(devlink, resource,
|
|
resource_id);
|
|
if (child_resource)
|
|
return child_resource;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
devlink_resource_validate_children(struct devlink_resource *resource)
|
|
{
|
|
struct devlink_resource *child_resource;
|
|
bool size_valid = true;
|
|
u64 parts_size = 0;
|
|
|
|
if (list_empty(&resource->resource_list))
|
|
goto out;
|
|
|
|
list_for_each_entry(child_resource, &resource->resource_list, list)
|
|
parts_size += child_resource->size_new;
|
|
|
|
if (parts_size > resource->size_new)
|
|
size_valid = false;
|
|
out:
|
|
resource->size_valid = size_valid;
|
|
}
|
|
|
|
static int
|
|
devlink_resource_validate_size(struct devlink_resource *resource, u64 size,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
u64 reminder;
|
|
int err = 0;
|
|
|
|
if (size > resource->size_params.size_max) {
|
|
NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum");
|
|
err = -EINVAL;
|
|
}
|
|
|
|
if (size < resource->size_params.size_min) {
|
|
NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum");
|
|
err = -EINVAL;
|
|
}
|
|
|
|
div64_u64_rem(size, resource->size_params.size_granularity, &reminder);
|
|
if (reminder) {
|
|
NL_SET_ERR_MSG_MOD(extack, "Wrong granularity");
|
|
err = -EINVAL;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int devlink_nl_cmd_resource_set(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_resource *resource;
|
|
u64 resource_id;
|
|
u64 size;
|
|
int err;
|
|
|
|
if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] ||
|
|
!info->attrs[DEVLINK_ATTR_RESOURCE_SIZE])
|
|
return -EINVAL;
|
|
resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]);
|
|
|
|
resource = devlink_resource_find(devlink, NULL, resource_id);
|
|
if (!resource)
|
|
return -EINVAL;
|
|
|
|
size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]);
|
|
err = devlink_resource_validate_size(resource, size, info->extack);
|
|
if (err)
|
|
return err;
|
|
|
|
resource->size_new = size;
|
|
devlink_resource_validate_children(resource);
|
|
if (resource->parent)
|
|
devlink_resource_validate_children(resource->parent);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
devlink_resource_size_params_put(struct devlink_resource *resource,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct devlink_resource_size_params *size_params;
|
|
|
|
size_params = &resource->size_params;
|
|
if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN,
|
|
size_params->size_granularity, DEVLINK_ATTR_PAD) ||
|
|
nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX,
|
|
size_params->size_max, DEVLINK_ATTR_PAD) ||
|
|
nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN,
|
|
size_params->size_min, DEVLINK_ATTR_PAD) ||
|
|
nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit))
|
|
return -EMSGSIZE;
|
|
return 0;
|
|
}
|
|
|
|
static int devlink_resource_occ_put(struct devlink_resource *resource,
|
|
struct sk_buff *skb)
|
|
{
|
|
if (!resource->occ_get)
|
|
return 0;
|
|
return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC,
|
|
resource->occ_get(resource->occ_get_priv),
|
|
DEVLINK_ATTR_PAD);
|
|
}
|
|
|
|
static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb,
|
|
struct devlink_resource *resource)
|
|
{
|
|
struct devlink_resource *child_resource;
|
|
struct nlattr *child_resource_attr;
|
|
struct nlattr *resource_attr;
|
|
|
|
resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE);
|
|
if (!resource_attr)
|
|
return -EMSGSIZE;
|
|
|
|
if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) ||
|
|
nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size,
|
|
DEVLINK_ATTR_PAD) ||
|
|
nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id,
|
|
DEVLINK_ATTR_PAD))
|
|
goto nla_put_failure;
|
|
if (resource->size != resource->size_new)
|
|
nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW,
|
|
resource->size_new, DEVLINK_ATTR_PAD);
|
|
if (devlink_resource_occ_put(resource, skb))
|
|
goto nla_put_failure;
|
|
if (devlink_resource_size_params_put(resource, skb))
|
|
goto nla_put_failure;
|
|
if (list_empty(&resource->resource_list))
|
|
goto out;
|
|
|
|
if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID,
|
|
resource->size_valid))
|
|
goto nla_put_failure;
|
|
|
|
child_resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST);
|
|
if (!child_resource_attr)
|
|
goto nla_put_failure;
|
|
|
|
list_for_each_entry(child_resource, &resource->resource_list, list) {
|
|
if (devlink_resource_put(devlink, skb, child_resource))
|
|
goto resource_put_failure;
|
|
}
|
|
|
|
nla_nest_end(skb, child_resource_attr);
|
|
out:
|
|
nla_nest_end(skb, resource_attr);
|
|
return 0;
|
|
|
|
resource_put_failure:
|
|
nla_nest_cancel(skb, child_resource_attr);
|
|
nla_put_failure:
|
|
nla_nest_cancel(skb, resource_attr);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
static int devlink_resource_fill(struct genl_info *info,
|
|
enum devlink_command cmd, int flags)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_resource *resource;
|
|
struct nlattr *resources_attr;
|
|
struct sk_buff *skb = NULL;
|
|
struct nlmsghdr *nlh;
|
|
bool incomplete;
|
|
void *hdr;
|
|
int i;
|
|
int err;
|
|
|
|
resource = list_first_entry(&devlink->resource_list,
|
|
struct devlink_resource, list);
|
|
start_again:
|
|
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
|
|
if (err)
|
|
return err;
|
|
|
|
hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
|
|
&devlink_nl_family, NLM_F_MULTI, cmd);
|
|
if (!hdr) {
|
|
nlmsg_free(skb);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
if (devlink_nl_put_handle(skb, devlink))
|
|
goto nla_put_failure;
|
|
|
|
resources_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST);
|
|
if (!resources_attr)
|
|
goto nla_put_failure;
|
|
|
|
incomplete = false;
|
|
i = 0;
|
|
list_for_each_entry_from(resource, &devlink->resource_list, list) {
|
|
err = devlink_resource_put(devlink, skb, resource);
|
|
if (err) {
|
|
if (!i)
|
|
goto err_resource_put;
|
|
incomplete = true;
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
nla_nest_end(skb, resources_attr);
|
|
genlmsg_end(skb, hdr);
|
|
if (incomplete)
|
|
goto start_again;
|
|
send_done:
|
|
nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq,
|
|
NLMSG_DONE, 0, flags | NLM_F_MULTI);
|
|
if (!nlh) {
|
|
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
|
|
if (err)
|
|
goto err_skb_send_alloc;
|
|
goto send_done;
|
|
}
|
|
return genlmsg_reply(skb, info);
|
|
|
|
nla_put_failure:
|
|
err = -EMSGSIZE;
|
|
err_resource_put:
|
|
err_skb_send_alloc:
|
|
nlmsg_free(skb);
|
|
return err;
|
|
}
|
|
|
|
static int devlink_nl_cmd_resource_dump(struct sk_buff *skb,
|
|
struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
|
|
if (list_empty(&devlink->resource_list))
|
|
return -EOPNOTSUPP;
|
|
|
|
return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0);
|
|
}
|
|
|
|
static int
|
|
devlink_resources_validate(struct devlink *devlink,
|
|
struct devlink_resource *resource,
|
|
struct genl_info *info)
|
|
{
|
|
struct list_head *resource_list;
|
|
int err = 0;
|
|
|
|
if (resource)
|
|
resource_list = &resource->resource_list;
|
|
else
|
|
resource_list = &devlink->resource_list;
|
|
|
|
list_for_each_entry(resource, resource_list, list) {
|
|
if (!resource->size_valid)
|
|
return -EINVAL;
|
|
err = devlink_resources_validate(devlink, resource, info);
|
|
if (err)
|
|
return err;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
int err;
|
|
|
|
if (!devlink->ops->reload)
|
|
return -EOPNOTSUPP;
|
|
|
|
err = devlink_resources_validate(devlink, NULL, info);
|
|
if (err) {
|
|
NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed");
|
|
return err;
|
|
}
|
|
return devlink->ops->reload(devlink);
|
|
}
|
|
|
|
static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
|
|
[DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING },
|
|
[DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING },
|
|
[DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 },
|
|
[DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 },
|
|
[DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 },
|
|
[DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 },
|
|
[DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 },
|
|
[DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 },
|
|
[DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 },
|
|
[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 },
|
|
[DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 },
|
|
[DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 },
|
|
[DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 },
|
|
[DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 },
|
|
[DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 },
|
|
[DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING },
|
|
[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 },
|
|
[DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64},
|
|
[DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64},
|
|
};
|
|
|
|
static const struct genl_ops devlink_nl_ops[] = {
|
|
{
|
|
.cmd = DEVLINK_CMD_GET,
|
|
.doit = devlink_nl_cmd_get_doit,
|
|
.dumpit = devlink_nl_cmd_get_dumpit,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_PORT_GET,
|
|
.doit = devlink_nl_cmd_port_get_doit,
|
|
.dumpit = devlink_nl_cmd_port_get_dumpit,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_PORT_SET,
|
|
.doit = devlink_nl_cmd_port_set_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_PORT_SPLIT,
|
|
.doit = devlink_nl_cmd_port_split_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NO_LOCK,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_PORT_UNSPLIT,
|
|
.doit = devlink_nl_cmd_port_unsplit_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NO_LOCK,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_GET,
|
|
.doit = devlink_nl_cmd_sb_get_doit,
|
|
.dumpit = devlink_nl_cmd_sb_get_dumpit,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_POOL_GET,
|
|
.doit = devlink_nl_cmd_sb_pool_get_doit,
|
|
.dumpit = devlink_nl_cmd_sb_pool_get_dumpit,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_POOL_SET,
|
|
.doit = devlink_nl_cmd_sb_pool_set_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_PORT_POOL_GET,
|
|
.doit = devlink_nl_cmd_sb_port_pool_get_doit,
|
|
.dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_PORT_POOL_SET,
|
|
.doit = devlink_nl_cmd_sb_port_pool_set_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET,
|
|
.doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit,
|
|
.dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET,
|
|
.doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT,
|
|
.doit = devlink_nl_cmd_sb_occ_snapshot_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR,
|
|
.doit = devlink_nl_cmd_sb_occ_max_clear_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NEED_SB,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_ESWITCH_GET,
|
|
.doit = devlink_nl_cmd_eswitch_get_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_ESWITCH_SET,
|
|
.doit = devlink_nl_cmd_eswitch_set_doit,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NO_LOCK,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_DPIPE_TABLE_GET,
|
|
.doit = devlink_nl_cmd_dpipe_table_get,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET,
|
|
.doit = devlink_nl_cmd_dpipe_entries_get,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_DPIPE_HEADERS_GET,
|
|
.doit = devlink_nl_cmd_dpipe_headers_get,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET,
|
|
.doit = devlink_nl_cmd_dpipe_table_counters_set,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_RESOURCE_SET,
|
|
.doit = devlink_nl_cmd_resource_set,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_RESOURCE_DUMP,
|
|
.doit = devlink_nl_cmd_resource_dump,
|
|
.policy = devlink_nl_policy,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
|
|
/* can be retrieved by unprivileged users */
|
|
},
|
|
{
|
|
.cmd = DEVLINK_CMD_RELOAD,
|
|
.doit = devlink_nl_cmd_reload,
|
|
.policy = devlink_nl_policy,
|
|
.flags = GENL_ADMIN_PERM,
|
|
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
|
|
DEVLINK_NL_FLAG_NO_LOCK,
|
|
},
|
|
};
|
|
|
|
static struct genl_family devlink_nl_family __ro_after_init = {
|
|
.name = DEVLINK_GENL_NAME,
|
|
.version = DEVLINK_GENL_VERSION,
|
|
.maxattr = DEVLINK_ATTR_MAX,
|
|
.netnsok = true,
|
|
.pre_doit = devlink_nl_pre_doit,
|
|
.post_doit = devlink_nl_post_doit,
|
|
.module = THIS_MODULE,
|
|
.ops = devlink_nl_ops,
|
|
.n_ops = ARRAY_SIZE(devlink_nl_ops),
|
|
.mcgrps = devlink_nl_mcgrps,
|
|
.n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps),
|
|
};
|
|
|
|
/**
|
|
* devlink_alloc - Allocate new devlink instance resources
|
|
*
|
|
* @ops: ops
|
|
* @priv_size: size of user private data
|
|
*
|
|
* Allocate new devlink instance resources, including devlink index
|
|
* and name.
|
|
*/
|
|
struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size)
|
|
{
|
|
struct devlink *devlink;
|
|
|
|
devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL);
|
|
if (!devlink)
|
|
return NULL;
|
|
devlink->ops = ops;
|
|
devlink_net_set(devlink, &init_net);
|
|
INIT_LIST_HEAD(&devlink->port_list);
|
|
INIT_LIST_HEAD(&devlink->sb_list);
|
|
INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list);
|
|
INIT_LIST_HEAD(&devlink->resource_list);
|
|
mutex_init(&devlink->lock);
|
|
return devlink;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_alloc);
|
|
|
|
/**
|
|
* devlink_register - Register devlink instance
|
|
*
|
|
* @devlink: devlink
|
|
*/
|
|
int devlink_register(struct devlink *devlink, struct device *dev)
|
|
{
|
|
mutex_lock(&devlink_mutex);
|
|
devlink->dev = dev;
|
|
list_add_tail(&devlink->list, &devlink_list);
|
|
devlink_notify(devlink, DEVLINK_CMD_NEW);
|
|
mutex_unlock(&devlink_mutex);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_register);
|
|
|
|
/**
|
|
* devlink_unregister - Unregister devlink instance
|
|
*
|
|
* @devlink: devlink
|
|
*/
|
|
void devlink_unregister(struct devlink *devlink)
|
|
{
|
|
mutex_lock(&devlink_mutex);
|
|
devlink_notify(devlink, DEVLINK_CMD_DEL);
|
|
list_del(&devlink->list);
|
|
mutex_unlock(&devlink_mutex);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_unregister);
|
|
|
|
/**
|
|
* devlink_free - Free devlink instance resources
|
|
*
|
|
* @devlink: devlink
|
|
*/
|
|
void devlink_free(struct devlink *devlink)
|
|
{
|
|
kfree(devlink);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_free);
|
|
|
|
/**
|
|
* devlink_port_register - Register devlink port
|
|
*
|
|
* @devlink: devlink
|
|
* @devlink_port: devlink port
|
|
* @port_index
|
|
*
|
|
* Register devlink port with provided port index. User can use
|
|
* any indexing, even hw-related one. devlink_port structure
|
|
* is convenient to be embedded inside user driver private structure.
|
|
* Note that the caller should take care of zeroing the devlink_port
|
|
* structure.
|
|
*/
|
|
int devlink_port_register(struct devlink *devlink,
|
|
struct devlink_port *devlink_port,
|
|
unsigned int port_index)
|
|
{
|
|
mutex_lock(&devlink->lock);
|
|
if (devlink_port_index_exists(devlink, port_index)) {
|
|
mutex_unlock(&devlink->lock);
|
|
return -EEXIST;
|
|
}
|
|
devlink_port->devlink = devlink;
|
|
devlink_port->index = port_index;
|
|
devlink_port->registered = true;
|
|
list_add_tail(&devlink_port->list, &devlink->port_list);
|
|
mutex_unlock(&devlink->lock);
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_register);
|
|
|
|
/**
|
|
* devlink_port_unregister - Unregister devlink port
|
|
*
|
|
* @devlink_port: devlink port
|
|
*/
|
|
void devlink_port_unregister(struct devlink_port *devlink_port)
|
|
{
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL);
|
|
mutex_lock(&devlink->lock);
|
|
list_del(&devlink_port->list);
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_unregister);
|
|
|
|
static void __devlink_port_type_set(struct devlink_port *devlink_port,
|
|
enum devlink_port_type type,
|
|
void *type_dev)
|
|
{
|
|
devlink_port->type = type;
|
|
devlink_port->type_dev = type_dev;
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
|
|
}
|
|
|
|
/**
|
|
* devlink_port_type_eth_set - Set port type to Ethernet
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @netdev: related netdevice
|
|
*/
|
|
void devlink_port_type_eth_set(struct devlink_port *devlink_port,
|
|
struct net_device *netdev)
|
|
{
|
|
return __devlink_port_type_set(devlink_port,
|
|
DEVLINK_PORT_TYPE_ETH, netdev);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_type_eth_set);
|
|
|
|
/**
|
|
* devlink_port_type_ib_set - Set port type to InfiniBand
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @ibdev: related IB device
|
|
*/
|
|
void devlink_port_type_ib_set(struct devlink_port *devlink_port,
|
|
struct ib_device *ibdev)
|
|
{
|
|
return __devlink_port_type_set(devlink_port,
|
|
DEVLINK_PORT_TYPE_IB, ibdev);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_type_ib_set);
|
|
|
|
/**
|
|
* devlink_port_type_clear - Clear port type
|
|
*
|
|
* @devlink_port: devlink port
|
|
*/
|
|
void devlink_port_type_clear(struct devlink_port *devlink_port)
|
|
{
|
|
return __devlink_port_type_set(devlink_port,
|
|
DEVLINK_PORT_TYPE_NOTSET, NULL);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_type_clear);
|
|
|
|
/**
|
|
* devlink_port_attrs_set - Set port attributes
|
|
*
|
|
* @devlink_port: devlink port
|
|
* @flavour: flavour of the port
|
|
* @port_number: number of the port that is facing user, for example
|
|
* the front panel port number
|
|
* @split: indicates if this is split port
|
|
* @split_subport_number: if the port is split, this is the number
|
|
* of subport.
|
|
*/
|
|
void devlink_port_attrs_set(struct devlink_port *devlink_port,
|
|
enum devlink_port_flavour flavour,
|
|
u32 port_number, bool split,
|
|
u32 split_subport_number)
|
|
{
|
|
struct devlink_port_attrs *attrs = &devlink_port->attrs;
|
|
|
|
attrs->set = true;
|
|
attrs->flavour = flavour;
|
|
attrs->port_number = port_number;
|
|
attrs->split = split;
|
|
attrs->split_subport_number = split_subport_number;
|
|
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_attrs_set);
|
|
|
|
int devlink_port_get_phys_port_name(struct devlink_port *devlink_port,
|
|
char *name, size_t len)
|
|
{
|
|
struct devlink_port_attrs *attrs = &devlink_port->attrs;
|
|
int n = 0;
|
|
|
|
if (!attrs->set)
|
|
return -EOPNOTSUPP;
|
|
|
|
switch (attrs->flavour) {
|
|
case DEVLINK_PORT_FLAVOUR_PHYSICAL:
|
|
if (!attrs->split)
|
|
n = snprintf(name, len, "p%u", attrs->port_number);
|
|
else
|
|
n = snprintf(name, len, "p%us%u", attrs->port_number,
|
|
attrs->split_subport_number);
|
|
break;
|
|
case DEVLINK_PORT_FLAVOUR_CPU:
|
|
case DEVLINK_PORT_FLAVOUR_DSA:
|
|
/* As CPU and DSA ports do not have a netdevice associated
|
|
* case should not ever happen.
|
|
*/
|
|
WARN_ON(1);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (n >= len)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_port_get_phys_port_name);
|
|
|
|
int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
|
|
u32 size, u16 ingress_pools_count,
|
|
u16 egress_pools_count, u16 ingress_tc_count,
|
|
u16 egress_tc_count)
|
|
{
|
|
struct devlink_sb *devlink_sb;
|
|
int err = 0;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
if (devlink_sb_index_exists(devlink, sb_index)) {
|
|
err = -EEXIST;
|
|
goto unlock;
|
|
}
|
|
|
|
devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL);
|
|
if (!devlink_sb) {
|
|
err = -ENOMEM;
|
|
goto unlock;
|
|
}
|
|
devlink_sb->index = sb_index;
|
|
devlink_sb->size = size;
|
|
devlink_sb->ingress_pools_count = ingress_pools_count;
|
|
devlink_sb->egress_pools_count = egress_pools_count;
|
|
devlink_sb->ingress_tc_count = ingress_tc_count;
|
|
devlink_sb->egress_tc_count = egress_tc_count;
|
|
list_add_tail(&devlink_sb->list, &devlink->sb_list);
|
|
unlock:
|
|
mutex_unlock(&devlink->lock);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_sb_register);
|
|
|
|
void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index)
|
|
{
|
|
struct devlink_sb *devlink_sb;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
devlink_sb = devlink_sb_get_by_index(devlink, sb_index);
|
|
WARN_ON(!devlink_sb);
|
|
list_del(&devlink_sb->list);
|
|
mutex_unlock(&devlink->lock);
|
|
kfree(devlink_sb);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_sb_unregister);
|
|
|
|
/**
|
|
* devlink_dpipe_headers_register - register dpipe headers
|
|
*
|
|
* @devlink: devlink
|
|
* @dpipe_headers: dpipe header array
|
|
*
|
|
* Register the headers supported by hardware.
|
|
*/
|
|
int devlink_dpipe_headers_register(struct devlink *devlink,
|
|
struct devlink_dpipe_headers *dpipe_headers)
|
|
{
|
|
mutex_lock(&devlink->lock);
|
|
devlink->dpipe_headers = dpipe_headers;
|
|
mutex_unlock(&devlink->lock);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register);
|
|
|
|
/**
|
|
* devlink_dpipe_headers_unregister - unregister dpipe headers
|
|
*
|
|
* @devlink: devlink
|
|
*
|
|
* Unregister the headers supported by hardware.
|
|
*/
|
|
void devlink_dpipe_headers_unregister(struct devlink *devlink)
|
|
{
|
|
mutex_lock(&devlink->lock);
|
|
devlink->dpipe_headers = NULL;
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister);
|
|
|
|
/**
|
|
* devlink_dpipe_table_counter_enabled - check if counter allocation
|
|
* required
|
|
* @devlink: devlink
|
|
* @table_name: tables name
|
|
*
|
|
* Used by driver to check if counter allocation is required.
|
|
* After counter allocation is turned on the table entries
|
|
* are updated to include counter statistics.
|
|
*
|
|
* After that point on the driver must respect the counter
|
|
* state so that each entry added to the table is added
|
|
* with a counter.
|
|
*/
|
|
bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
|
|
const char *table_name)
|
|
{
|
|
struct devlink_dpipe_table *table;
|
|
bool enabled;
|
|
|
|
rcu_read_lock();
|
|
table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
|
|
table_name);
|
|
enabled = false;
|
|
if (table)
|
|
enabled = table->counters_enabled;
|
|
rcu_read_unlock();
|
|
return enabled;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled);
|
|
|
|
/**
|
|
* devlink_dpipe_table_register - register dpipe table
|
|
*
|
|
* @devlink: devlink
|
|
* @table_name: table name
|
|
* @table_ops: table ops
|
|
* @priv: priv
|
|
* @counter_control_extern: external control for counters
|
|
*/
|
|
int devlink_dpipe_table_register(struct devlink *devlink,
|
|
const char *table_name,
|
|
struct devlink_dpipe_table_ops *table_ops,
|
|
void *priv, bool counter_control_extern)
|
|
{
|
|
struct devlink_dpipe_table *table;
|
|
|
|
if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name))
|
|
return -EEXIST;
|
|
|
|
if (WARN_ON(!table_ops->size_get))
|
|
return -EINVAL;
|
|
|
|
table = kzalloc(sizeof(*table), GFP_KERNEL);
|
|
if (!table)
|
|
return -ENOMEM;
|
|
|
|
table->name = table_name;
|
|
table->table_ops = table_ops;
|
|
table->priv = priv;
|
|
table->counter_control_extern = counter_control_extern;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
list_add_tail_rcu(&table->list, &devlink->dpipe_table_list);
|
|
mutex_unlock(&devlink->lock);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_table_register);
|
|
|
|
/**
|
|
* devlink_dpipe_table_unregister - unregister dpipe table
|
|
*
|
|
* @devlink: devlink
|
|
* @table_name: table name
|
|
*/
|
|
void devlink_dpipe_table_unregister(struct devlink *devlink,
|
|
const char *table_name)
|
|
{
|
|
struct devlink_dpipe_table *table;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
|
|
table_name);
|
|
if (!table)
|
|
goto unlock;
|
|
list_del_rcu(&table->list);
|
|
mutex_unlock(&devlink->lock);
|
|
kfree_rcu(table, rcu);
|
|
return;
|
|
unlock:
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister);
|
|
|
|
/**
|
|
* devlink_resource_register - devlink resource register
|
|
*
|
|
* @devlink: devlink
|
|
* @resource_name: resource's name
|
|
* @top_hierarchy: top hierarchy
|
|
* @reload_required: reload is required for new configuration to
|
|
* apply
|
|
* @resource_size: resource's size
|
|
* @resource_id: resource's id
|
|
* @parent_reosurce_id: resource's parent id
|
|
* @size params: size parameters
|
|
*/
|
|
int devlink_resource_register(struct devlink *devlink,
|
|
const char *resource_name,
|
|
u64 resource_size,
|
|
u64 resource_id,
|
|
u64 parent_resource_id,
|
|
const struct devlink_resource_size_params *size_params)
|
|
{
|
|
struct devlink_resource *resource;
|
|
struct list_head *resource_list;
|
|
bool top_hierarchy;
|
|
int err = 0;
|
|
|
|
top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
resource = devlink_resource_find(devlink, NULL, resource_id);
|
|
if (resource) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
resource = kzalloc(sizeof(*resource), GFP_KERNEL);
|
|
if (!resource) {
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
if (top_hierarchy) {
|
|
resource_list = &devlink->resource_list;
|
|
} else {
|
|
struct devlink_resource *parent_resource;
|
|
|
|
parent_resource = devlink_resource_find(devlink, NULL,
|
|
parent_resource_id);
|
|
if (parent_resource) {
|
|
resource_list = &parent_resource->resource_list;
|
|
resource->parent = parent_resource;
|
|
} else {
|
|
kfree(resource);
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
resource->name = resource_name;
|
|
resource->size = resource_size;
|
|
resource->size_new = resource_size;
|
|
resource->id = resource_id;
|
|
resource->size_valid = true;
|
|
memcpy(&resource->size_params, size_params,
|
|
sizeof(resource->size_params));
|
|
INIT_LIST_HEAD(&resource->resource_list);
|
|
list_add_tail(&resource->list, resource_list);
|
|
out:
|
|
mutex_unlock(&devlink->lock);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_resource_register);
|
|
|
|
/**
|
|
* devlink_resources_unregister - free all resources
|
|
*
|
|
* @devlink: devlink
|
|
* @resource: resource
|
|
*/
|
|
void devlink_resources_unregister(struct devlink *devlink,
|
|
struct devlink_resource *resource)
|
|
{
|
|
struct devlink_resource *tmp, *child_resource;
|
|
struct list_head *resource_list;
|
|
|
|
if (resource)
|
|
resource_list = &resource->resource_list;
|
|
else
|
|
resource_list = &devlink->resource_list;
|
|
|
|
if (!resource)
|
|
mutex_lock(&devlink->lock);
|
|
|
|
list_for_each_entry_safe(child_resource, tmp, resource_list, list) {
|
|
devlink_resources_unregister(devlink, child_resource);
|
|
list_del(&child_resource->list);
|
|
kfree(child_resource);
|
|
}
|
|
|
|
if (!resource)
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_resources_unregister);
|
|
|
|
/**
|
|
* devlink_resource_size_get - get and update size
|
|
*
|
|
* @devlink: devlink
|
|
* @resource_id: the requested resource id
|
|
* @p_resource_size: ptr to update
|
|
*/
|
|
int devlink_resource_size_get(struct devlink *devlink,
|
|
u64 resource_id,
|
|
u64 *p_resource_size)
|
|
{
|
|
struct devlink_resource *resource;
|
|
int err = 0;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
resource = devlink_resource_find(devlink, NULL, resource_id);
|
|
if (!resource) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
*p_resource_size = resource->size_new;
|
|
resource->size = resource->size_new;
|
|
out:
|
|
mutex_unlock(&devlink->lock);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_resource_size_get);
|
|
|
|
/**
|
|
* devlink_dpipe_table_resource_set - set the resource id
|
|
*
|
|
* @devlink: devlink
|
|
* @table_name: table name
|
|
* @resource_id: resource id
|
|
* @resource_units: number of resource's units consumed per table's entry
|
|
*/
|
|
int devlink_dpipe_table_resource_set(struct devlink *devlink,
|
|
const char *table_name, u64 resource_id,
|
|
u64 resource_units)
|
|
{
|
|
struct devlink_dpipe_table *table;
|
|
int err = 0;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
table = devlink_dpipe_table_find(&devlink->dpipe_table_list,
|
|
table_name);
|
|
if (!table) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
table->resource_id = resource_id;
|
|
table->resource_units = resource_units;
|
|
table->resource_valid = true;
|
|
out:
|
|
mutex_unlock(&devlink->lock);
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_dpipe_table_resource_set);
|
|
|
|
/**
|
|
* devlink_resource_occ_get_register - register occupancy getter
|
|
*
|
|
* @devlink: devlink
|
|
* @resource_id: resource id
|
|
* @occ_get: occupancy getter callback
|
|
* @occ_get_priv: occupancy getter callback priv
|
|
*/
|
|
void devlink_resource_occ_get_register(struct devlink *devlink,
|
|
u64 resource_id,
|
|
devlink_resource_occ_get_t *occ_get,
|
|
void *occ_get_priv)
|
|
{
|
|
struct devlink_resource *resource;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
resource = devlink_resource_find(devlink, NULL, resource_id);
|
|
if (WARN_ON(!resource))
|
|
goto out;
|
|
WARN_ON(resource->occ_get);
|
|
|
|
resource->occ_get = occ_get;
|
|
resource->occ_get_priv = occ_get_priv;
|
|
out:
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register);
|
|
|
|
/**
|
|
* devlink_resource_occ_get_unregister - unregister occupancy getter
|
|
*
|
|
* @devlink: devlink
|
|
* @resource_id: resource id
|
|
*/
|
|
void devlink_resource_occ_get_unregister(struct devlink *devlink,
|
|
u64 resource_id)
|
|
{
|
|
struct devlink_resource *resource;
|
|
|
|
mutex_lock(&devlink->lock);
|
|
resource = devlink_resource_find(devlink, NULL, resource_id);
|
|
if (WARN_ON(!resource))
|
|
goto out;
|
|
WARN_ON(!resource->occ_get);
|
|
|
|
resource->occ_get = NULL;
|
|
resource->occ_get_priv = NULL;
|
|
out:
|
|
mutex_unlock(&devlink->lock);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister);
|
|
|
|
static int __init devlink_module_init(void)
|
|
{
|
|
return genl_register_family(&devlink_nl_family);
|
|
}
|
|
|
|
static void __exit devlink_module_exit(void)
|
|
{
|
|
genl_unregister_family(&devlink_nl_family);
|
|
}
|
|
|
|
module_init(devlink_module_init);
|
|
module_exit(devlink_module_exit);
|
|
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
|
|
MODULE_DESCRIPTION("Network physical device Netlink interface");
|
|
MODULE_ALIAS_GENL_FAMILY(DEVLINK_GENL_NAME);
|