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Message-ID: <20230825085321.178134-11-jiri@resnulli.us>
Date: Fri, 25 Aug 2023 10:53:16 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: kuba@...nel.org,
pabeni@...hat.com,
davem@...emloft.net,
edumazet@...gle.com,
moshe@...dia.com
Subject: [patch net-next 10/15] devlink: push trap related code into separate file
From: Jiri Pirko <jiri@...dia.com>
Cut out another chunk from leftover.c and put trap related code
into a separate file.
Signed-off-by: Jiri Pirko <jiri@...dia.com>
---
net/devlink/Makefile | 2 +-
net/devlink/devl_internal.h | 11 +
net/devlink/leftover.c | 2915 +++++++----------------------------
net/devlink/trap.c | 1861 ++++++++++++++++++++++
4 files changed, 2400 insertions(+), 2389 deletions(-)
create mode 100644 net/devlink/trap.c
diff --git a/net/devlink/Makefile b/net/devlink/Makefile
index 744f64e467b7..523efffe522c 100644
--- a/net/devlink/Makefile
+++ b/net/devlink/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
obj-y := leftover.o core.o netlink.o netlink_gen.o dev.o port.o sb.o dpipe.o \
- resource.o param.o region.o health.o
+ resource.o param.o region.o health.o trap.o
diff --git a/net/devlink/devl_internal.h b/net/devlink/devl_internal.h
index 32b66233240f..148525aa2847 100644
--- a/net/devlink/devl_internal.h
+++ b/net/devlink/devl_internal.h
@@ -160,6 +160,12 @@ void devlink_params_notify_register(struct devlink *devlink);
void devlink_params_notify_unregister(struct devlink *devlink);
void devlink_regions_notify_register(struct devlink *devlink);
void devlink_regions_notify_unregister(struct devlink *devlink);
+void devlink_trap_policers_notify_register(struct devlink *devlink);
+void devlink_trap_policers_notify_unregister(struct devlink *devlink);
+void devlink_trap_groups_notify_register(struct devlink *devlink);
+void devlink_trap_groups_notify_unregister(struct devlink *devlink);
+void devlink_traps_notify_register(struct devlink *devlink);
+void devlink_traps_notify_unregister(struct devlink *devlink);
/* Ports */
#define ASSERT_DEVLINK_PORT_INITIALIZED(devlink_port) \
@@ -267,3 +273,8 @@ int devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb,
struct genl_info *info);
int devlink_nl_cmd_health_reporter_test_doit(struct sk_buff *skb,
struct genl_info *info);
+int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, struct genl_info *info);
+int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb,
+ struct genl_info *info);
+int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb,
+ struct genl_info *info);
diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c
index 1db3a7928465..5b153ce097ab 100644
--- a/net/devlink/leftover.c
+++ b/net/devlink/leftover.c
@@ -999,2495 +999,634 @@ int devlink_rate_nodes_check(struct devlink *devlink, u16 mode,
return 0;
}
-struct devlink_stats {
- u64_stats_t rx_bytes;
- u64_stats_t rx_packets;
- struct u64_stats_sync syncp;
-};
-
-/**
- * struct devlink_trap_policer_item - Packet trap policer attributes.
- * @policer: Immutable packet trap policer attributes.
- * @rate: Rate in packets / sec.
- * @burst: Burst size in packets.
- * @list: trap_policer_list member.
- *
- * Describes packet trap policer attributes. Created by devlink during trap
- * policer registration.
- */
-struct devlink_trap_policer_item {
- const struct devlink_trap_policer *policer;
- u64 rate;
- u64 burst;
- struct list_head list;
-};
-
-/**
- * struct devlink_trap_group_item - Packet trap group attributes.
- * @group: Immutable packet trap group attributes.
- * @policer_item: Associated policer item. Can be NULL.
- * @list: trap_group_list member.
- * @stats: Trap group statistics.
- *
- * Describes packet trap group attributes. Created by devlink during trap
- * group registration.
- */
-struct devlink_trap_group_item {
- const struct devlink_trap_group *group;
- struct devlink_trap_policer_item *policer_item;
- struct list_head list;
- struct devlink_stats __percpu *stats;
-};
-
-/**
- * struct devlink_trap_item - Packet trap attributes.
- * @trap: Immutable packet trap attributes.
- * @group_item: Associated group item.
- * @list: trap_list member.
- * @action: Trap action.
- * @stats: Trap statistics.
- * @priv: Driver private information.
- *
- * Describes both mutable and immutable packet trap attributes. Created by
- * devlink during trap registration and used for all trap related operations.
- */
-struct devlink_trap_item {
- const struct devlink_trap *trap;
- struct devlink_trap_group_item *group_item;
- struct list_head list;
- enum devlink_trap_action action;
- struct devlink_stats __percpu *stats;
- void *priv;
-};
-
-static struct devlink_trap_policer_item *
-devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id)
-{
- struct devlink_trap_policer_item *policer_item;
-
- list_for_each_entry(policer_item, &devlink->trap_policer_list, list) {
- if (policer_item->policer->id == id)
- return policer_item;
- }
-
- return NULL;
-}
-
-static struct devlink_trap_item *
-devlink_trap_item_lookup(struct devlink *devlink, const char *name)
-{
- struct devlink_trap_item *trap_item;
-
- list_for_each_entry(trap_item, &devlink->trap_list, list) {
- if (!strcmp(trap_item->trap->name, name))
- return trap_item;
- }
-
- return NULL;
-}
-
-static struct devlink_trap_item *
-devlink_trap_item_get_from_info(struct devlink *devlink,
- struct genl_info *info)
-{
- struct nlattr *attr;
-
- if (!info->attrs[DEVLINK_ATTR_TRAP_NAME])
- return NULL;
- attr = info->attrs[DEVLINK_ATTR_TRAP_NAME];
-
- return devlink_trap_item_lookup(devlink, nla_data(attr));
-}
-
-static int
-devlink_trap_action_get_from_info(struct genl_info *info,
- enum devlink_trap_action *p_trap_action)
-{
- u8 val;
-
- val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]);
- switch (val) {
- case DEVLINK_TRAP_ACTION_DROP:
- case DEVLINK_TRAP_ACTION_TRAP:
- case DEVLINK_TRAP_ACTION_MIRROR:
- *p_trap_action = val;
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int devlink_trap_metadata_put(struct sk_buff *msg,
- const struct devlink_trap *trap)
-{
- struct nlattr *attr;
-
- attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA);
- if (!attr)
- return -EMSGSIZE;
-
- if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) &&
- nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT))
- goto nla_put_failure;
- if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) &&
- nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE))
- goto nla_put_failure;
-
- nla_nest_end(msg, attr);
-
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(msg, attr);
- return -EMSGSIZE;
-}
-
-static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats,
- struct devlink_stats *stats)
-{
- int i;
-
- memset(stats, 0, sizeof(*stats));
- for_each_possible_cpu(i) {
- struct devlink_stats *cpu_stats;
- u64 rx_packets, rx_bytes;
- unsigned int start;
-
- cpu_stats = per_cpu_ptr(trap_stats, i);
- do {
- start = u64_stats_fetch_begin(&cpu_stats->syncp);
- rx_packets = u64_stats_read(&cpu_stats->rx_packets);
- rx_bytes = u64_stats_read(&cpu_stats->rx_bytes);
- } while (u64_stats_fetch_retry(&cpu_stats->syncp, start));
-
- u64_stats_add(&stats->rx_packets, rx_packets);
- u64_stats_add(&stats->rx_bytes, rx_bytes);
- }
-}
-
-static int
-devlink_trap_group_stats_put(struct sk_buff *msg,
- struct devlink_stats __percpu *trap_stats)
-{
- struct devlink_stats stats;
- struct nlattr *attr;
-
- devlink_trap_stats_read(trap_stats, &stats);
-
- attr = nla_nest_start(msg, DEVLINK_ATTR_STATS);
- if (!attr)
- return -EMSGSIZE;
-
- if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS,
- u64_stats_read(&stats.rx_packets),
- DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES,
- u64_stats_read(&stats.rx_bytes),
- DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- nla_nest_end(msg, attr);
-
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(msg, attr);
- return -EMSGSIZE;
-}
-
-static int devlink_trap_stats_put(struct sk_buff *msg, struct devlink *devlink,
- const struct devlink_trap_item *trap_item)
-{
- struct devlink_stats stats;
- struct nlattr *attr;
- u64 drops = 0;
- int err;
-
- if (devlink->ops->trap_drop_counter_get) {
- err = devlink->ops->trap_drop_counter_get(devlink,
- trap_item->trap,
- &drops);
- if (err)
- return err;
- }
-
- devlink_trap_stats_read(trap_item->stats, &stats);
-
- attr = nla_nest_start(msg, DEVLINK_ATTR_STATS);
- if (!attr)
- return -EMSGSIZE;
-
- if (devlink->ops->trap_drop_counter_get &&
- nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops,
- DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS,
- u64_stats_read(&stats.rx_packets),
- DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES,
- u64_stats_read(&stats.rx_bytes),
- DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- nla_nest_end(msg, attr);
-
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(msg, attr);
- return -EMSGSIZE;
-}
-
-static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink,
- const struct devlink_trap_item *trap_item,
- enum devlink_command cmd, u32 portid, u32 seq,
- int flags)
-{
- struct devlink_trap_group_item *group_item = trap_item->group_item;
- void *hdr;
- int 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_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME,
- group_item->group->name))
- goto nla_put_failure;
-
- if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name))
- goto nla_put_failure;
-
- if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type))
- goto nla_put_failure;
-
- if (trap_item->trap->generic &&
- nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC))
- goto nla_put_failure;
-
- if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action))
- goto nla_put_failure;
-
- err = devlink_trap_metadata_put(msg, trap_item->trap);
- if (err)
- goto nla_put_failure;
-
- err = devlink_trap_stats_put(msg, devlink, trap_item);
- if (err)
- goto nla_put_failure;
-
- genlmsg_end(msg, hdr);
-
- return 0;
-
-nla_put_failure:
- genlmsg_cancel(msg, hdr);
- return -EMSGSIZE;
-}
-
-int devlink_nl_trap_get_doit(struct sk_buff *skb, struct genl_info *info)
-{
- struct netlink_ext_ack *extack = info->extack;
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_trap_item *trap_item;
- struct sk_buff *msg;
- int err;
-
- if (list_empty(&devlink->trap_list))
- return -EOPNOTSUPP;
-
- trap_item = devlink_trap_item_get_from_info(devlink, info);
- if (!trap_item) {
- NL_SET_ERR_MSG(extack, "Device did not register this trap");
- return -ENOENT;
- }
-
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- err = devlink_nl_trap_fill(msg, devlink, trap_item,
- DEVLINK_CMD_TRAP_NEW, info->snd_portid,
- info->snd_seq, 0);
- if (err)
- goto err_trap_fill;
-
- return genlmsg_reply(msg, info);
-
-err_trap_fill:
- nlmsg_free(msg);
- return err;
-}
-
-static int devlink_nl_trap_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb, int flags)
-{
- struct devlink_nl_dump_state *state = devlink_dump_state(cb);
- struct devlink_trap_item *trap_item;
- int idx = 0;
- int err = 0;
-
- list_for_each_entry(trap_item, &devlink->trap_list, list) {
- if (idx < state->idx) {
- idx++;
- continue;
- }
- err = devlink_nl_trap_fill(msg, devlink, trap_item,
- DEVLINK_CMD_TRAP_NEW,
- NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq, flags);
- if (err) {
- state->idx = idx;
- break;
- }
- idx++;
- }
-
- return err;
-}
-
-int devlink_nl_trap_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
-{
- return devlink_nl_dumpit(skb, cb, devlink_nl_trap_get_dump_one);
-}
-
-static int __devlink_trap_action_set(struct devlink *devlink,
- struct devlink_trap_item *trap_item,
- enum devlink_trap_action trap_action,
- struct netlink_ext_ack *extack)
-{
- int err;
-
- if (trap_item->action != trap_action &&
- trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) {
- NL_SET_ERR_MSG(extack, "Cannot change action of non-drop traps. Skipping");
- return 0;
- }
-
- err = devlink->ops->trap_action_set(devlink, trap_item->trap,
- trap_action, extack);
- if (err)
- return err;
-
- trap_item->action = trap_action;
-
- return 0;
-}
-
-static int devlink_trap_action_set(struct devlink *devlink,
- struct devlink_trap_item *trap_item,
- struct genl_info *info)
-{
- enum devlink_trap_action trap_action;
- int err;
-
- if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION])
- return 0;
-
- err = devlink_trap_action_get_from_info(info, &trap_action);
- if (err) {
- NL_SET_ERR_MSG(info->extack, "Invalid trap action");
- return -EINVAL;
- }
-
- return __devlink_trap_action_set(devlink, trap_item, trap_action,
- info->extack);
-}
-
-static int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct netlink_ext_ack *extack = info->extack;
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_trap_item *trap_item;
-
- if (list_empty(&devlink->trap_list))
- return -EOPNOTSUPP;
-
- trap_item = devlink_trap_item_get_from_info(devlink, info);
- if (!trap_item) {
- NL_SET_ERR_MSG(extack, "Device did not register this trap");
- return -ENOENT;
- }
-
- return devlink_trap_action_set(devlink, trap_item, info);
-}
-
-static struct devlink_trap_group_item *
-devlink_trap_group_item_lookup(struct devlink *devlink, const char *name)
-{
- struct devlink_trap_group_item *group_item;
-
- list_for_each_entry(group_item, &devlink->trap_group_list, list) {
- if (!strcmp(group_item->group->name, name))
- return group_item;
- }
-
- return NULL;
-}
-
-static struct devlink_trap_group_item *
-devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id)
-{
- struct devlink_trap_group_item *group_item;
-
- list_for_each_entry(group_item, &devlink->trap_group_list, list) {
- if (group_item->group->id == id)
- return group_item;
- }
-
- return NULL;
-}
-
-static struct devlink_trap_group_item *
-devlink_trap_group_item_get_from_info(struct devlink *devlink,
- struct genl_info *info)
-{
- char *name;
-
- if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME])
- return NULL;
- name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]);
-
- return devlink_trap_group_item_lookup(devlink, name);
-}
-
-static int
-devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink,
- const struct devlink_trap_group_item *group_item,
- enum devlink_command cmd, u32 portid, u32 seq,
- int flags)
-{
- void *hdr;
- int 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_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME,
- group_item->group->name))
- goto nla_put_failure;
-
- if (group_item->group->generic &&
- nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC))
- goto nla_put_failure;
-
- if (group_item->policer_item &&
- nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID,
- group_item->policer_item->policer->id))
- goto nla_put_failure;
-
- err = devlink_trap_group_stats_put(msg, group_item->stats);
- if (err)
- goto nla_put_failure;
-
- genlmsg_end(msg, hdr);
-
- return 0;
-
-nla_put_failure:
- genlmsg_cancel(msg, hdr);
- return -EMSGSIZE;
-}
-
-int devlink_nl_trap_group_get_doit(struct sk_buff *skb, struct genl_info *info)
-{
- struct netlink_ext_ack *extack = info->extack;
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_trap_group_item *group_item;
- struct sk_buff *msg;
- int err;
-
- if (list_empty(&devlink->trap_group_list))
- return -EOPNOTSUPP;
-
- group_item = devlink_trap_group_item_get_from_info(devlink, info);
- if (!group_item) {
- NL_SET_ERR_MSG(extack, "Device did not register this trap group");
- return -ENOENT;
- }
-
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- err = devlink_nl_trap_group_fill(msg, devlink, group_item,
- DEVLINK_CMD_TRAP_GROUP_NEW,
- info->snd_portid, info->snd_seq, 0);
- if (err)
- goto err_trap_group_fill;
-
- return genlmsg_reply(msg, info);
-
-err_trap_group_fill:
- nlmsg_free(msg);
- return err;
-}
-
-static int devlink_nl_trap_group_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb,
- int flags)
-{
- struct devlink_nl_dump_state *state = devlink_dump_state(cb);
- struct devlink_trap_group_item *group_item;
- int idx = 0;
- int err = 0;
-
-
- list_for_each_entry(group_item, &devlink->trap_group_list, list) {
- if (idx < state->idx) {
- idx++;
- continue;
- }
- err = devlink_nl_trap_group_fill(msg, devlink, group_item,
- DEVLINK_CMD_TRAP_GROUP_NEW,
- NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq, flags);
- if (err) {
- state->idx = idx;
- break;
- }
- idx++;
- }
-
- return err;
-}
-
-int devlink_nl_trap_group_get_dumpit(struct sk_buff *skb,
- struct netlink_callback *cb)
-{
- return devlink_nl_dumpit(skb, cb, devlink_nl_trap_group_get_dump_one);
-}
-
-static int
-__devlink_trap_group_action_set(struct devlink *devlink,
- struct devlink_trap_group_item *group_item,
- enum devlink_trap_action trap_action,
- struct netlink_ext_ack *extack)
-{
- const char *group_name = group_item->group->name;
- struct devlink_trap_item *trap_item;
- int err;
-
- if (devlink->ops->trap_group_action_set) {
- err = devlink->ops->trap_group_action_set(devlink, group_item->group,
- trap_action, extack);
- if (err)
- return err;
-
- list_for_each_entry(trap_item, &devlink->trap_list, list) {
- if (strcmp(trap_item->group_item->group->name, group_name))
- continue;
- if (trap_item->action != trap_action &&
- trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP)
- continue;
- trap_item->action = trap_action;
- }
-
- return 0;
- }
-
- list_for_each_entry(trap_item, &devlink->trap_list, list) {
- if (strcmp(trap_item->group_item->group->name, group_name))
- continue;
- err = __devlink_trap_action_set(devlink, trap_item,
- trap_action, extack);
- if (err)
- return err;
- }
-
- return 0;
-}
-
-static int
-devlink_trap_group_action_set(struct devlink *devlink,
- struct devlink_trap_group_item *group_item,
- struct genl_info *info, bool *p_modified)
-{
- enum devlink_trap_action trap_action;
- int err;
-
- if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION])
- return 0;
-
- err = devlink_trap_action_get_from_info(info, &trap_action);
- if (err) {
- NL_SET_ERR_MSG(info->extack, "Invalid trap action");
- return -EINVAL;
- }
-
- err = __devlink_trap_group_action_set(devlink, group_item, trap_action,
- info->extack);
- if (err)
- return err;
-
- *p_modified = true;
-
- return 0;
-}
-
-static int devlink_trap_group_set(struct devlink *devlink,
- struct devlink_trap_group_item *group_item,
- struct genl_info *info)
-{
- struct devlink_trap_policer_item *policer_item;
- struct netlink_ext_ack *extack = info->extack;
- const struct devlink_trap_policer *policer;
- struct nlattr **attrs = info->attrs;
- u32 policer_id;
- int err;
-
- if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID])
- return 0;
-
- if (!devlink->ops->trap_group_set)
- return -EOPNOTSUPP;
-
- policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]);
- policer_item = devlink_trap_policer_item_lookup(devlink, policer_id);
- if (policer_id && !policer_item) {
- NL_SET_ERR_MSG(extack, "Device did not register this trap policer");
- return -ENOENT;
- }
- policer = policer_item ? policer_item->policer : NULL;
-
- err = devlink->ops->trap_group_set(devlink, group_item->group, policer,
- extack);
- if (err)
- return err;
-
- group_item->policer_item = policer_item;
-
- return 0;
-}
-
-static int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct netlink_ext_ack *extack = info->extack;
- struct devlink *devlink = info->user_ptr[0];
- struct devlink_trap_group_item *group_item;
- bool modified = false;
- int err;
-
- if (list_empty(&devlink->trap_group_list))
- return -EOPNOTSUPP;
-
- group_item = devlink_trap_group_item_get_from_info(devlink, info);
- if (!group_item) {
- NL_SET_ERR_MSG(extack, "Device did not register this trap group");
- return -ENOENT;
- }
-
- err = devlink_trap_group_action_set(devlink, group_item, info,
- &modified);
- if (err)
- return err;
-
- err = devlink_trap_group_set(devlink, group_item, info);
- if (err)
- goto err_trap_group_set;
-
- return 0;
-
-err_trap_group_set:
- if (modified)
- NL_SET_ERR_MSG(extack, "Trap group set failed, but some changes were committed already");
- return err;
-}
-
-static struct devlink_trap_policer_item *
-devlink_trap_policer_item_get_from_info(struct devlink *devlink,
- struct genl_info *info)
-{
- u32 id;
-
- if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID])
- return NULL;
- id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]);
-
- return devlink_trap_policer_item_lookup(devlink, id);
-}
-
-static int
-devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink,
- const struct devlink_trap_policer *policer)
-{
- struct nlattr *attr;
- u64 drops;
- int err;
-
- if (!devlink->ops->trap_policer_counter_get)
- return 0;
-
- err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops);
- if (err)
- return err;
-
- attr = nla_nest_start(msg, DEVLINK_ATTR_STATS);
- if (!attr)
- return -EMSGSIZE;
-
- if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops,
- DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- nla_nest_end(msg, attr);
-
- return 0;
-
-nla_put_failure:
- nla_nest_cancel(msg, attr);
- return -EMSGSIZE;
-}
-
-static int
-devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink,
- const struct devlink_trap_policer_item *policer_item,
- enum devlink_command cmd, u32 portid, u32 seq,
- int flags)
-{
- void *hdr;
- int 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_TRAP_POLICER_ID,
- policer_item->policer->id))
- goto nla_put_failure;
-
- if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE,
- policer_item->rate, DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST,
- policer_item->burst, DEVLINK_ATTR_PAD))
- goto nla_put_failure;
-
- err = devlink_trap_policer_stats_put(msg, devlink,
- policer_item->policer);
- if (err)
- goto nla_put_failure;
-
- genlmsg_end(msg, hdr);
-
- return 0;
-
-nla_put_failure:
- genlmsg_cancel(msg, hdr);
- return -EMSGSIZE;
-}
-
-int devlink_nl_trap_policer_get_doit(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct devlink_trap_policer_item *policer_item;
- struct netlink_ext_ack *extack = info->extack;
- struct devlink *devlink = info->user_ptr[0];
- struct sk_buff *msg;
- int err;
-
- if (list_empty(&devlink->trap_policer_list))
- return -EOPNOTSUPP;
-
- policer_item = devlink_trap_policer_item_get_from_info(devlink, info);
- if (!policer_item) {
- NL_SET_ERR_MSG(extack, "Device did not register this trap policer");
- return -ENOENT;
- }
-
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
-
- err = devlink_nl_trap_policer_fill(msg, devlink, policer_item,
- DEVLINK_CMD_TRAP_POLICER_NEW,
- info->snd_portid, info->snd_seq, 0);
- if (err)
- goto err_trap_policer_fill;
-
- return genlmsg_reply(msg, info);
-
-err_trap_policer_fill:
- nlmsg_free(msg);
- return err;
-}
-
-static int devlink_nl_trap_policer_get_dump_one(struct sk_buff *msg,
- struct devlink *devlink,
- struct netlink_callback *cb,
- int flags)
-{
- struct devlink_nl_dump_state *state = devlink_dump_state(cb);
- struct devlink_trap_policer_item *policer_item;
- int idx = 0;
- int err = 0;
-
- list_for_each_entry(policer_item, &devlink->trap_policer_list, list) {
- if (idx < state->idx) {
- idx++;
- continue;
- }
- err = devlink_nl_trap_policer_fill(msg, devlink, policer_item,
- DEVLINK_CMD_TRAP_POLICER_NEW,
- NETLINK_CB(cb->skb).portid,
- cb->nlh->nlmsg_seq, flags);
- if (err) {
- state->idx = idx;
- break;
- }
- idx++;
- }
-
- return err;
-}
-
-int devlink_nl_trap_policer_get_dumpit(struct sk_buff *skb,
- struct netlink_callback *cb)
-{
- return devlink_nl_dumpit(skb, cb, devlink_nl_trap_policer_get_dump_one);
-}
-
-static int
-devlink_trap_policer_set(struct devlink *devlink,
- struct devlink_trap_policer_item *policer_item,
- struct genl_info *info)
-{
- struct netlink_ext_ack *extack = info->extack;
- struct nlattr **attrs = info->attrs;
- u64 rate, burst;
- int err;
-
- rate = policer_item->rate;
- burst = policer_item->burst;
-
- if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE])
- rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]);
-
- if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST])
- burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]);
-
- if (rate < policer_item->policer->min_rate) {
- NL_SET_ERR_MSG(extack, "Policer rate lower than limit");
- return -EINVAL;
- }
-
- if (rate > policer_item->policer->max_rate) {
- NL_SET_ERR_MSG(extack, "Policer rate higher than limit");
- return -EINVAL;
- }
-
- if (burst < policer_item->policer->min_burst) {
- NL_SET_ERR_MSG(extack, "Policer burst size lower than limit");
- return -EINVAL;
- }
-
- if (burst > policer_item->policer->max_burst) {
- NL_SET_ERR_MSG(extack, "Policer burst size higher than limit");
- return -EINVAL;
- }
-
- err = devlink->ops->trap_policer_set(devlink, policer_item->policer,
- rate, burst, info->extack);
- if (err)
- return err;
-
- policer_item->rate = rate;
- policer_item->burst = burst;
-
- return 0;
-}
-
-static int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb,
- struct genl_info *info)
-{
- struct devlink_trap_policer_item *policer_item;
- struct netlink_ext_ack *extack = info->extack;
- struct devlink *devlink = info->user_ptr[0];
-
- if (list_empty(&devlink->trap_policer_list))
- return -EOPNOTSUPP;
-
- if (!devlink->ops->trap_policer_set)
- return -EOPNOTSUPP;
-
- policer_item = devlink_trap_policer_item_get_from_info(devlink, info);
- if (!policer_item) {
- NL_SET_ERR_MSG(extack, "Device did not register this trap policer");
- return -ENOENT;
- }
-
- return devlink_trap_policer_set(devlink, policer_item, info);
-}
-
-const struct genl_small_ops devlink_nl_small_ops[40] = {
- {
- .cmd = DEVLINK_CMD_PORT_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_port_set_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- },
- {
- .cmd = DEVLINK_CMD_RATE_SET,
- .doit = devlink_nl_cmd_rate_set_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_RATE_NEW,
- .doit = devlink_nl_cmd_rate_new_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_RATE_DEL,
- .doit = devlink_nl_cmd_rate_del_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_PORT_SPLIT,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_port_split_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- },
- {
- .cmd = DEVLINK_CMD_PORT_UNSPLIT,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_port_unsplit_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- },
- {
- .cmd = DEVLINK_CMD_PORT_NEW,
- .doit = devlink_nl_cmd_port_new_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_PORT_DEL,
- .doit = devlink_nl_cmd_port_del_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- },
-
- {
- .cmd = DEVLINK_CMD_LINECARD_SET,
- .doit = devlink_nl_cmd_linecard_set_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_SB_POOL_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_pool_set_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_SB_PORT_POOL_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_port_pool_set_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- },
- {
- .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- },
- {
- .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_occ_snapshot_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_sb_occ_max_clear_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_ESWITCH_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_eswitch_get_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_ESWITCH_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_eswitch_set_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_DPIPE_TABLE_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_dpipe_table_get,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_dpipe_entries_get,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_dpipe_headers_get,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_dpipe_table_counters_set,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_RESOURCE_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_resource_set,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_RESOURCE_DUMP,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_resource_dump,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_RELOAD,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_reload,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_PARAM_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_param_set_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_PORT_PARAM_GET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_port_param_get_doit,
- .dumpit = devlink_nl_cmd_port_param_get_dumpit,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = DEVLINK_CMD_PORT_PARAM_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_port_param_set_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
- },
- {
- .cmd = DEVLINK_CMD_REGION_NEW,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_region_new,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_REGION_DEL,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_region_del,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_REGION_READ,
- .validate = GENL_DONT_VALIDATE_STRICT |
- GENL_DONT_VALIDATE_DUMP_STRICT,
- .dumpit = devlink_nl_cmd_region_read_dumpit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_health_reporter_set_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
- },
- {
- .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_health_reporter_recover_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
- },
- {
- .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_health_reporter_diagnose_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
- },
- {
- .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET,
- .validate = GENL_DONT_VALIDATE_STRICT |
- GENL_DONT_VALIDATE_DUMP_STRICT,
- .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_health_reporter_dump_clear_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
- },
- {
- .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_health_reporter_test_doit,
- .flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
- },
- {
- .cmd = DEVLINK_CMD_FLASH_UPDATE,
- .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
- .doit = devlink_nl_cmd_flash_update,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_TRAP_SET,
- .doit = devlink_nl_cmd_trap_set_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_TRAP_GROUP_SET,
- .doit = devlink_nl_cmd_trap_group_set_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_TRAP_POLICER_SET,
- .doit = devlink_nl_cmd_trap_policer_set_doit,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = DEVLINK_CMD_SELFTESTS_RUN,
- .doit = devlink_nl_cmd_selftests_run,
- .flags = GENL_ADMIN_PERM,
- },
- /* -- No new ops here! Use split ops going forward! -- */
-};
-
-static void devlink_trap_policers_notify_register(struct devlink *devlink);
-static void devlink_trap_policers_notify_unregister(struct devlink *devlink);
-static void devlink_trap_groups_notify_register(struct devlink *devlink);
-static void devlink_trap_groups_notify_unregister(struct devlink *devlink);
-static void devlink_traps_notify_register(struct devlink *devlink);
-static void devlink_traps_notify_unregister(struct devlink *devlink);
-
-void devlink_notify_register(struct devlink *devlink)
-{
- devlink_notify(devlink, DEVLINK_CMD_NEW);
- devlink_linecards_notify_register(devlink);
- devlink_ports_notify_register(devlink);
- devlink_trap_policers_notify_register(devlink);
- devlink_trap_groups_notify_register(devlink);
- devlink_traps_notify_register(devlink);
- devlink_rates_notify_register(devlink);
- devlink_regions_notify_register(devlink);
- devlink_params_notify_register(devlink);
-}
-
-void devlink_notify_unregister(struct devlink *devlink)
-{
- devlink_params_notify_unregister(devlink);
- devlink_regions_notify_unregister(devlink);
- devlink_rates_notify_unregister(devlink);
- devlink_traps_notify_unregister(devlink);
- devlink_trap_groups_notify_unregister(devlink);
- devlink_trap_policers_notify_unregister(devlink);
- devlink_ports_notify_unregister(devlink);
- devlink_linecards_notify_unregister(devlink);
- devlink_notify(devlink, DEVLINK_CMD_DEL);
-}
-
-/**
- * devl_rate_node_create - create devlink rate node
- * @devlink: devlink instance
- * @priv: driver private data
- * @node_name: name of the resulting node
- * @parent: parent devlink_rate struct
- *
- * Create devlink rate object of type node
- */
-struct devlink_rate *
-devl_rate_node_create(struct devlink *devlink, void *priv, char *node_name,
- struct devlink_rate *parent)
-{
- struct devlink_rate *rate_node;
-
- rate_node = devlink_rate_node_get_by_name(devlink, node_name);
- if (!IS_ERR(rate_node))
- return ERR_PTR(-EEXIST);
-
- rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL);
- if (!rate_node)
- return ERR_PTR(-ENOMEM);
-
- if (parent) {
- rate_node->parent = parent;
- refcount_inc(&rate_node->parent->refcnt);
- }
-
- rate_node->type = DEVLINK_RATE_TYPE_NODE;
- rate_node->devlink = devlink;
- rate_node->priv = priv;
-
- rate_node->name = kstrdup(node_name, GFP_KERNEL);
- if (!rate_node->name) {
- kfree(rate_node);
- return ERR_PTR(-ENOMEM);
- }
-
- refcount_set(&rate_node->refcnt, 1);
- list_add(&rate_node->list, &devlink->rate_list);
- devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW);
- return rate_node;
-}
-EXPORT_SYMBOL_GPL(devl_rate_node_create);
-
-/**
- * devl_rate_leaf_create - create devlink rate leaf
- * @devlink_port: devlink port object to create rate object on
- * @priv: driver private data
- * @parent: parent devlink_rate struct
- *
- * Create devlink rate object of type leaf on provided @devlink_port.
- */
-int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv,
- struct devlink_rate *parent)
-{
- struct devlink *devlink = devlink_port->devlink;
- struct devlink_rate *devlink_rate;
-
- devl_assert_locked(devlink_port->devlink);
-
- if (WARN_ON(devlink_port->devlink_rate))
- return -EBUSY;
-
- devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL);
- if (!devlink_rate)
- return -ENOMEM;
-
- if (parent) {
- devlink_rate->parent = parent;
- refcount_inc(&devlink_rate->parent->refcnt);
- }
-
- devlink_rate->type = DEVLINK_RATE_TYPE_LEAF;
- devlink_rate->devlink = devlink;
- devlink_rate->devlink_port = devlink_port;
- devlink_rate->priv = priv;
- list_add_tail(&devlink_rate->list, &devlink->rate_list);
- devlink_port->devlink_rate = devlink_rate;
- devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(devl_rate_leaf_create);
-
-/**
- * devl_rate_leaf_destroy - destroy devlink rate leaf
- *
- * @devlink_port: devlink port linked to the rate object
- *
- * Destroy the devlink rate object of type leaf on provided @devlink_port.
- */
-void devl_rate_leaf_destroy(struct devlink_port *devlink_port)
-{
- struct devlink_rate *devlink_rate = devlink_port->devlink_rate;
-
- devl_assert_locked(devlink_port->devlink);
- if (!devlink_rate)
- return;
-
- devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL);
- if (devlink_rate->parent)
- refcount_dec(&devlink_rate->parent->refcnt);
- list_del(&devlink_rate->list);
- devlink_port->devlink_rate = NULL;
- kfree(devlink_rate);
-}
-EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy);
-
-/**
- * devl_rate_nodes_destroy - destroy all devlink rate nodes on device
- * @devlink: devlink instance
- *
- * Unset parent for all rate objects and destroy all rate nodes
- * on specified device.
- */
-void devl_rate_nodes_destroy(struct devlink *devlink)
-{
- static struct devlink_rate *devlink_rate, *tmp;
- const struct devlink_ops *ops = devlink->ops;
-
- devl_assert_locked(devlink);
-
- list_for_each_entry(devlink_rate, &devlink->rate_list, list) {
- if (!devlink_rate->parent)
- continue;
-
- refcount_dec(&devlink_rate->parent->refcnt);
- if (devlink_rate_is_leaf(devlink_rate))
- ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv,
- NULL, NULL);
- else if (devlink_rate_is_node(devlink_rate))
- ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv,
- NULL, NULL);
- }
- list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) {
- if (devlink_rate_is_node(devlink_rate)) {
- ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL);
- list_del(&devlink_rate->list);
- kfree(devlink_rate->name);
- kfree(devlink_rate);
- }
- }
-}
-EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy);
-
-static int devlink_linecard_types_init(struct devlink_linecard *linecard)
-{
- struct devlink_linecard_type *linecard_type;
- unsigned int count;
- int i;
-
- count = linecard->ops->types_count(linecard, linecard->priv);
- linecard->types = kmalloc_array(count, sizeof(*linecard_type),
- GFP_KERNEL);
- if (!linecard->types)
- return -ENOMEM;
- linecard->types_count = count;
-
- for (i = 0; i < count; i++) {
- linecard_type = &linecard->types[i];
- linecard->ops->types_get(linecard, linecard->priv, i,
- &linecard_type->type,
- &linecard_type->priv);
- }
- return 0;
-}
-
-static void devlink_linecard_types_fini(struct devlink_linecard *linecard)
-{
- kfree(linecard->types);
-}
-
-/**
- * devl_linecard_create - Create devlink linecard
- *
- * @devlink: devlink
- * @linecard_index: driver-specific numerical identifier of the linecard
- * @ops: linecards ops
- * @priv: user priv pointer
- *
- * Create devlink linecard instance with provided linecard index.
- * Caller can use any indexing, even hw-related one.
- *
- * Return: Line card structure or an ERR_PTR() encoded error code.
- */
-struct devlink_linecard *
-devl_linecard_create(struct devlink *devlink, unsigned int linecard_index,
- const struct devlink_linecard_ops *ops, void *priv)
-{
- struct devlink_linecard *linecard;
- int err;
-
- if (WARN_ON(!ops || !ops->provision || !ops->unprovision ||
- !ops->types_count || !ops->types_get))
- return ERR_PTR(-EINVAL);
-
- if (devlink_linecard_index_exists(devlink, linecard_index))
- return ERR_PTR(-EEXIST);
-
- linecard = kzalloc(sizeof(*linecard), GFP_KERNEL);
- if (!linecard)
- return ERR_PTR(-ENOMEM);
-
- linecard->devlink = devlink;
- linecard->index = linecard_index;
- linecard->ops = ops;
- linecard->priv = priv;
- linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
- mutex_init(&linecard->state_lock);
-
- err = devlink_linecard_types_init(linecard);
- if (err) {
- mutex_destroy(&linecard->state_lock);
- kfree(linecard);
- return ERR_PTR(err);
- }
-
- list_add_tail(&linecard->list, &devlink->linecard_list);
- devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
- return linecard;
-}
-EXPORT_SYMBOL_GPL(devl_linecard_create);
-
-/**
- * devl_linecard_destroy - Destroy devlink linecard
- *
- * @linecard: devlink linecard
- */
-void devl_linecard_destroy(struct devlink_linecard *linecard)
-{
- devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL);
- list_del(&linecard->list);
- devlink_linecard_types_fini(linecard);
- mutex_destroy(&linecard->state_lock);
- kfree(linecard);
-}
-EXPORT_SYMBOL_GPL(devl_linecard_destroy);
-
-/**
- * devlink_linecard_provision_set - Set provisioning on linecard
- *
- * @linecard: devlink linecard
- * @type: linecard type
- *
- * This is either called directly from the provision() op call or
- * as a result of the provision() op call asynchronously.
- */
-void devlink_linecard_provision_set(struct devlink_linecard *linecard,
- const char *type)
-{
- mutex_lock(&linecard->state_lock);
- WARN_ON(linecard->type && strcmp(linecard->type, type));
- linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED;
- linecard->type = type;
- devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
- mutex_unlock(&linecard->state_lock);
-}
-EXPORT_SYMBOL_GPL(devlink_linecard_provision_set);
-
-/**
- * devlink_linecard_provision_clear - Clear provisioning on linecard
- *
- * @linecard: devlink linecard
- *
- * This is either called directly from the unprovision() op call or
- * as a result of the unprovision() op call asynchronously.
- */
-void devlink_linecard_provision_clear(struct devlink_linecard *linecard)
-{
- mutex_lock(&linecard->state_lock);
- WARN_ON(linecard->nested_devlink);
- linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
- linecard->type = NULL;
- devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
- mutex_unlock(&linecard->state_lock);
-}
-EXPORT_SYMBOL_GPL(devlink_linecard_provision_clear);
-
-/**
- * devlink_linecard_provision_fail - Fail provisioning on linecard
- *
- * @linecard: devlink linecard
- *
- * This is either called directly from the provision() op call or
- * as a result of the provision() op call asynchronously.
- */
-void devlink_linecard_provision_fail(struct devlink_linecard *linecard)
-{
- mutex_lock(&linecard->state_lock);
- WARN_ON(linecard->nested_devlink);
- linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED;
- devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
- mutex_unlock(&linecard->state_lock);
-}
-EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail);
-
-/**
- * devlink_linecard_activate - Set linecard active
- *
- * @linecard: devlink linecard
- */
-void devlink_linecard_activate(struct devlink_linecard *linecard)
-{
- mutex_lock(&linecard->state_lock);
- WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED);
- linecard->state = DEVLINK_LINECARD_STATE_ACTIVE;
- devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
- mutex_unlock(&linecard->state_lock);
-}
-EXPORT_SYMBOL_GPL(devlink_linecard_activate);
-
-/**
- * devlink_linecard_deactivate - Set linecard inactive
- *
- * @linecard: devlink linecard
- */
-void devlink_linecard_deactivate(struct devlink_linecard *linecard)
-{
- mutex_lock(&linecard->state_lock);
- switch (linecard->state) {
- case DEVLINK_LINECARD_STATE_ACTIVE:
- linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED;
- devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
- break;
- case DEVLINK_LINECARD_STATE_UNPROVISIONING:
- /* Line card is being deactivated as part
- * of unprovisioning flow.
- */
- break;
- default:
- WARN_ON(1);
- break;
- }
- mutex_unlock(&linecard->state_lock);
-}
-EXPORT_SYMBOL_GPL(devlink_linecard_deactivate);
-
-/**
- * devlink_linecard_nested_dl_set - Attach/detach nested devlink
- * instance to linecard.
- *
- * @linecard: devlink linecard
- * @nested_devlink: devlink instance to attach or NULL to detach
- */
-void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard,
- struct devlink *nested_devlink)
-{
- mutex_lock(&linecard->state_lock);
- linecard->nested_devlink = nested_devlink;
- devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
- mutex_unlock(&linecard->state_lock);
-}
-EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set);
-
-#define DEVLINK_TRAP(_id, _type) \
- { \
- .type = DEVLINK_TRAP_TYPE_##_type, \
- .id = DEVLINK_TRAP_GENERIC_ID_##_id, \
- .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \
- }
-
-static const struct devlink_trap devlink_trap_generic[] = {
- DEVLINK_TRAP(SMAC_MC, DROP),
- DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP),
- DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP),
- DEVLINK_TRAP(INGRESS_STP_FILTER, DROP),
- DEVLINK_TRAP(EMPTY_TX_LIST, DROP),
- DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP),
- DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP),
- DEVLINK_TRAP(TTL_ERROR, EXCEPTION),
- DEVLINK_TRAP(TAIL_DROP, DROP),
- DEVLINK_TRAP(NON_IP_PACKET, DROP),
- DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP),
- DEVLINK_TRAP(DIP_LB, DROP),
- DEVLINK_TRAP(SIP_MC, DROP),
- DEVLINK_TRAP(SIP_LB, DROP),
- DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP),
- DEVLINK_TRAP(IPV4_SIP_BC, DROP),
- DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP),
- DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP),
- DEVLINK_TRAP(MTU_ERROR, EXCEPTION),
- DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION),
- DEVLINK_TRAP(RPF, EXCEPTION),
- DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION),
- DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION),
- DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION),
- DEVLINK_TRAP(NON_ROUTABLE, DROP),
- DEVLINK_TRAP(DECAP_ERROR, EXCEPTION),
- DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP),
- DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP),
- DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP),
- DEVLINK_TRAP(STP, CONTROL),
- DEVLINK_TRAP(LACP, CONTROL),
- DEVLINK_TRAP(LLDP, CONTROL),
- DEVLINK_TRAP(IGMP_QUERY, CONTROL),
- DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL),
- DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL),
- DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL),
- DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL),
- DEVLINK_TRAP(MLD_QUERY, CONTROL),
- DEVLINK_TRAP(MLD_V1_REPORT, CONTROL),
- DEVLINK_TRAP(MLD_V2_REPORT, CONTROL),
- DEVLINK_TRAP(MLD_V1_DONE, CONTROL),
- DEVLINK_TRAP(IPV4_DHCP, CONTROL),
- DEVLINK_TRAP(IPV6_DHCP, CONTROL),
- DEVLINK_TRAP(ARP_REQUEST, CONTROL),
- DEVLINK_TRAP(ARP_RESPONSE, CONTROL),
- DEVLINK_TRAP(ARP_OVERLAY, CONTROL),
- DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL),
- DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL),
- DEVLINK_TRAP(IPV4_BFD, CONTROL),
- DEVLINK_TRAP(IPV6_BFD, CONTROL),
- DEVLINK_TRAP(IPV4_OSPF, CONTROL),
- DEVLINK_TRAP(IPV6_OSPF, CONTROL),
- DEVLINK_TRAP(IPV4_BGP, CONTROL),
- DEVLINK_TRAP(IPV6_BGP, CONTROL),
- DEVLINK_TRAP(IPV4_VRRP, CONTROL),
- DEVLINK_TRAP(IPV6_VRRP, CONTROL),
- DEVLINK_TRAP(IPV4_PIM, CONTROL),
- DEVLINK_TRAP(IPV6_PIM, CONTROL),
- DEVLINK_TRAP(UC_LB, CONTROL),
- DEVLINK_TRAP(LOCAL_ROUTE, CONTROL),
- DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL),
- DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL),
- DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL),
- DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL),
- DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL),
- DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL),
- DEVLINK_TRAP(IPV6_REDIRECT, CONTROL),
- DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL),
- DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL),
- DEVLINK_TRAP(PTP_EVENT, CONTROL),
- DEVLINK_TRAP(PTP_GENERAL, CONTROL),
- DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL),
- DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL),
- DEVLINK_TRAP(EARLY_DROP, DROP),
- DEVLINK_TRAP(VXLAN_PARSING, DROP),
- DEVLINK_TRAP(LLC_SNAP_PARSING, DROP),
- DEVLINK_TRAP(VLAN_PARSING, DROP),
- DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP),
- DEVLINK_TRAP(MPLS_PARSING, DROP),
- DEVLINK_TRAP(ARP_PARSING, DROP),
- DEVLINK_TRAP(IP_1_PARSING, DROP),
- DEVLINK_TRAP(IP_N_PARSING, DROP),
- DEVLINK_TRAP(GRE_PARSING, DROP),
- DEVLINK_TRAP(UDP_PARSING, DROP),
- DEVLINK_TRAP(TCP_PARSING, DROP),
- DEVLINK_TRAP(IPSEC_PARSING, DROP),
- DEVLINK_TRAP(SCTP_PARSING, DROP),
- DEVLINK_TRAP(DCCP_PARSING, DROP),
- DEVLINK_TRAP(GTP_PARSING, DROP),
- DEVLINK_TRAP(ESP_PARSING, DROP),
- DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP),
- DEVLINK_TRAP(DMAC_FILTER, DROP),
- DEVLINK_TRAP(EAPOL, CONTROL),
- DEVLINK_TRAP(LOCKED_PORT, DROP),
-};
-
-#define DEVLINK_TRAP_GROUP(_id) \
- { \
- .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \
- .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \
- }
-
-static const struct devlink_trap_group devlink_trap_group_generic[] = {
- DEVLINK_TRAP_GROUP(L2_DROPS),
- DEVLINK_TRAP_GROUP(L3_DROPS),
- DEVLINK_TRAP_GROUP(L3_EXCEPTIONS),
- DEVLINK_TRAP_GROUP(BUFFER_DROPS),
- DEVLINK_TRAP_GROUP(TUNNEL_DROPS),
- DEVLINK_TRAP_GROUP(ACL_DROPS),
- DEVLINK_TRAP_GROUP(STP),
- DEVLINK_TRAP_GROUP(LACP),
- DEVLINK_TRAP_GROUP(LLDP),
- DEVLINK_TRAP_GROUP(MC_SNOOPING),
- DEVLINK_TRAP_GROUP(DHCP),
- DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY),
- DEVLINK_TRAP_GROUP(BFD),
- DEVLINK_TRAP_GROUP(OSPF),
- DEVLINK_TRAP_GROUP(BGP),
- DEVLINK_TRAP_GROUP(VRRP),
- DEVLINK_TRAP_GROUP(PIM),
- DEVLINK_TRAP_GROUP(UC_LB),
- DEVLINK_TRAP_GROUP(LOCAL_DELIVERY),
- DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY),
- DEVLINK_TRAP_GROUP(IPV6),
- DEVLINK_TRAP_GROUP(PTP_EVENT),
- DEVLINK_TRAP_GROUP(PTP_GENERAL),
- DEVLINK_TRAP_GROUP(ACL_SAMPLE),
- DEVLINK_TRAP_GROUP(ACL_TRAP),
- DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS),
- DEVLINK_TRAP_GROUP(EAPOL),
-};
-
-static int devlink_trap_generic_verify(const struct devlink_trap *trap)
-{
- if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX)
- return -EINVAL;
-
- if (strcmp(trap->name, devlink_trap_generic[trap->id].name))
- return -EINVAL;
-
- if (trap->type != devlink_trap_generic[trap->id].type)
- return -EINVAL;
-
- return 0;
-}
-
-static int devlink_trap_driver_verify(const struct devlink_trap *trap)
-{
- int i;
-
- if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX)
- return -EINVAL;
-
- for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) {
- if (!strcmp(trap->name, devlink_trap_generic[i].name))
- return -EEXIST;
- }
-
- return 0;
-}
-
-static int devlink_trap_verify(const struct devlink_trap *trap)
-{
- if (!trap || !trap->name)
- return -EINVAL;
-
- if (trap->generic)
- return devlink_trap_generic_verify(trap);
- else
- return devlink_trap_driver_verify(trap);
-}
-
-static int
-devlink_trap_group_generic_verify(const struct devlink_trap_group *group)
-{
- if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX)
- return -EINVAL;
-
- if (strcmp(group->name, devlink_trap_group_generic[group->id].name))
- return -EINVAL;
-
- return 0;
-}
-
-static int
-devlink_trap_group_driver_verify(const struct devlink_trap_group *group)
-{
- int i;
-
- if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX)
- return -EINVAL;
-
- for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) {
- if (!strcmp(group->name, devlink_trap_group_generic[i].name))
- return -EEXIST;
- }
-
- return 0;
-}
-
-static int devlink_trap_group_verify(const struct devlink_trap_group *group)
-{
- if (group->generic)
- return devlink_trap_group_generic_verify(group);
- else
- return devlink_trap_group_driver_verify(group);
-}
-
-static void
-devlink_trap_group_notify(struct devlink *devlink,
- const struct devlink_trap_group_item *group_item,
- enum devlink_command cmd)
-{
- struct sk_buff *msg;
- int err;
-
- WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW &&
- cmd != DEVLINK_CMD_TRAP_GROUP_DEL);
- if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
- return;
-
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return;
-
- err = devlink_nl_trap_group_fill(msg, devlink, group_item, 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 void devlink_trap_groups_notify_register(struct devlink *devlink)
-{
- struct devlink_trap_group_item *group_item;
+const struct genl_small_ops devlink_nl_small_ops[40] = {
+ {
+ .cmd = DEVLINK_CMD_PORT_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_RATE_SET,
+ .doit = devlink_nl_cmd_rate_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_RATE_NEW,
+ .doit = devlink_nl_cmd_rate_new_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_RATE_DEL,
+ .doit = devlink_nl_cmd_rate_del_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_SPLIT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_split_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_UNSPLIT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_unsplit_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_NEW,
+ .doit = devlink_nl_cmd_port_new_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_DEL,
+ .doit = devlink_nl_cmd_port_del_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
- list_for_each_entry(group_item, &devlink->trap_group_list, list)
- devlink_trap_group_notify(devlink, group_item,
- DEVLINK_CMD_TRAP_GROUP_NEW);
-}
+ {
+ .cmd = DEVLINK_CMD_LINECARD_SET,
+ .doit = devlink_nl_cmd_linecard_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_POOL_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_pool_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_PORT_POOL_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_port_pool_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_occ_snapshot_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_sb_occ_max_clear_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_ESWITCH_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_eswitch_get_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_ESWITCH_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_eswitch_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_DPIPE_TABLE_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_dpipe_table_get,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_dpipe_entries_get,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_dpipe_headers_get,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_dpipe_table_counters_set,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_RESOURCE_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_resource_set,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_RESOURCE_DUMP,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_resource_dump,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_RELOAD,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_reload,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_PARAM_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_param_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_PARAM_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_param_get_doit,
+ .dumpit = devlink_nl_cmd_port_param_get_dumpit,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = DEVLINK_CMD_PORT_PARAM_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_port_param_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_REGION_NEW,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_region_new,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_REGION_DEL,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_region_del,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_REGION_READ,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ .dumpit = devlink_nl_cmd_region_read_dumpit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_recover_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_diagnose_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT |
+ GENL_DONT_VALIDATE_DUMP_STRICT,
+ .dumpit = devlink_nl_cmd_health_reporter_dump_get_dumpit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_dump_clear_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_HEALTH_REPORTER_TEST,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_health_reporter_test_doit,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK_OR_PORT,
+ },
+ {
+ .cmd = DEVLINK_CMD_FLASH_UPDATE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+ .doit = devlink_nl_cmd_flash_update,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_TRAP_SET,
+ .doit = devlink_nl_cmd_trap_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_TRAP_GROUP_SET,
+ .doit = devlink_nl_cmd_trap_group_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_TRAP_POLICER_SET,
+ .doit = devlink_nl_cmd_trap_policer_set_doit,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = DEVLINK_CMD_SELFTESTS_RUN,
+ .doit = devlink_nl_cmd_selftests_run,
+ .flags = GENL_ADMIN_PERM,
+ },
+ /* -- No new ops here! Use split ops going forward! -- */
+};
-static void devlink_trap_groups_notify_unregister(struct devlink *devlink)
+void devlink_notify_register(struct devlink *devlink)
{
- struct devlink_trap_group_item *group_item;
-
- list_for_each_entry_reverse(group_item, &devlink->trap_group_list, list)
- devlink_trap_group_notify(devlink, group_item,
- DEVLINK_CMD_TRAP_GROUP_DEL);
+ devlink_notify(devlink, DEVLINK_CMD_NEW);
+ devlink_linecards_notify_register(devlink);
+ devlink_ports_notify_register(devlink);
+ devlink_trap_policers_notify_register(devlink);
+ devlink_trap_groups_notify_register(devlink);
+ devlink_traps_notify_register(devlink);
+ devlink_rates_notify_register(devlink);
+ devlink_regions_notify_register(devlink);
+ devlink_params_notify_register(devlink);
}
-static int
-devlink_trap_item_group_link(struct devlink *devlink,
- struct devlink_trap_item *trap_item)
+void devlink_notify_unregister(struct devlink *devlink)
{
- u16 group_id = trap_item->trap->init_group_id;
- struct devlink_trap_group_item *group_item;
-
- group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id);
- if (WARN_ON_ONCE(!group_item))
- return -EINVAL;
-
- trap_item->group_item = group_item;
-
- return 0;
+ devlink_params_notify_unregister(devlink);
+ devlink_regions_notify_unregister(devlink);
+ devlink_rates_notify_unregister(devlink);
+ devlink_traps_notify_unregister(devlink);
+ devlink_trap_groups_notify_unregister(devlink);
+ devlink_trap_policers_notify_unregister(devlink);
+ devlink_ports_notify_unregister(devlink);
+ devlink_linecards_notify_unregister(devlink);
+ devlink_notify(devlink, DEVLINK_CMD_DEL);
}
-static void devlink_trap_notify(struct devlink *devlink,
- const struct devlink_trap_item *trap_item,
- enum devlink_command cmd)
+/**
+ * devl_rate_node_create - create devlink rate node
+ * @devlink: devlink instance
+ * @priv: driver private data
+ * @node_name: name of the resulting node
+ * @parent: parent devlink_rate struct
+ *
+ * Create devlink rate object of type node
+ */
+struct devlink_rate *
+devl_rate_node_create(struct devlink *devlink, void *priv, char *node_name,
+ struct devlink_rate *parent)
{
- struct sk_buff *msg;
- int err;
+ struct devlink_rate *rate_node;
- WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW &&
- cmd != DEVLINK_CMD_TRAP_DEL);
- if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
- return;
+ rate_node = devlink_rate_node_get_by_name(devlink, node_name);
+ if (!IS_ERR(rate_node))
+ return ERR_PTR(-EEXIST);
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return;
+ rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL);
+ if (!rate_node)
+ return ERR_PTR(-ENOMEM);
- err = devlink_nl_trap_fill(msg, devlink, trap_item, cmd, 0, 0, 0);
- if (err) {
- nlmsg_free(msg);
- return;
+ if (parent) {
+ rate_node->parent = parent;
+ refcount_inc(&rate_node->parent->refcnt);
}
- genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink),
- msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
-}
-
-static void devlink_traps_notify_register(struct devlink *devlink)
-{
- struct devlink_trap_item *trap_item;
-
- list_for_each_entry(trap_item, &devlink->trap_list, list)
- devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW);
-}
-
-static void devlink_traps_notify_unregister(struct devlink *devlink)
-{
- struct devlink_trap_item *trap_item;
-
- list_for_each_entry_reverse(trap_item, &devlink->trap_list, list)
- devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL);
-}
-
-static int
-devlink_trap_register(struct devlink *devlink,
- const struct devlink_trap *trap, void *priv)
-{
- struct devlink_trap_item *trap_item;
- int err;
-
- if (devlink_trap_item_lookup(devlink, trap->name))
- return -EEXIST;
-
- trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL);
- if (!trap_item)
- return -ENOMEM;
+ rate_node->type = DEVLINK_RATE_TYPE_NODE;
+ rate_node->devlink = devlink;
+ rate_node->priv = priv;
- trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats);
- if (!trap_item->stats) {
- err = -ENOMEM;
- goto err_stats_alloc;
+ rate_node->name = kstrdup(node_name, GFP_KERNEL);
+ if (!rate_node->name) {
+ kfree(rate_node);
+ return ERR_PTR(-ENOMEM);
}
- trap_item->trap = trap;
- trap_item->action = trap->init_action;
- trap_item->priv = priv;
-
- err = devlink_trap_item_group_link(devlink, trap_item);
- if (err)
- goto err_group_link;
-
- err = devlink->ops->trap_init(devlink, trap, trap_item);
- if (err)
- goto err_trap_init;
-
- list_add_tail(&trap_item->list, &devlink->trap_list);
- devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW);
-
- return 0;
-
-err_trap_init:
-err_group_link:
- free_percpu(trap_item->stats);
-err_stats_alloc:
- kfree(trap_item);
- return err;
-}
-
-static void devlink_trap_unregister(struct devlink *devlink,
- const struct devlink_trap *trap)
-{
- struct devlink_trap_item *trap_item;
-
- trap_item = devlink_trap_item_lookup(devlink, trap->name);
- if (WARN_ON_ONCE(!trap_item))
- return;
-
- devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL);
- list_del(&trap_item->list);
- if (devlink->ops->trap_fini)
- devlink->ops->trap_fini(devlink, trap, trap_item);
- free_percpu(trap_item->stats);
- kfree(trap_item);
-}
-
-static void devlink_trap_disable(struct devlink *devlink,
- const struct devlink_trap *trap)
-{
- struct devlink_trap_item *trap_item;
-
- trap_item = devlink_trap_item_lookup(devlink, trap->name);
- if (WARN_ON_ONCE(!trap_item))
- return;
-
- devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP,
- NULL);
- trap_item->action = DEVLINK_TRAP_ACTION_DROP;
+ refcount_set(&rate_node->refcnt, 1);
+ list_add(&rate_node->list, &devlink->rate_list);
+ devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW);
+ return rate_node;
}
+EXPORT_SYMBOL_GPL(devl_rate_node_create);
/**
- * devl_traps_register - Register packet traps with devlink.
- * @devlink: devlink.
- * @traps: Packet traps.
- * @traps_count: Count of provided packet traps.
- * @priv: Driver private information.
+ * devl_rate_leaf_create - create devlink rate leaf
+ * @devlink_port: devlink port object to create rate object on
+ * @priv: driver private data
+ * @parent: parent devlink_rate struct
*
- * Return: Non-zero value on failure.
+ * Create devlink rate object of type leaf on provided @devlink_port.
*/
-int devl_traps_register(struct devlink *devlink,
- const struct devlink_trap *traps,
- size_t traps_count, void *priv)
+int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv,
+ struct devlink_rate *parent)
{
- int i, err;
+ struct devlink *devlink = devlink_port->devlink;
+ struct devlink_rate *devlink_rate;
- if (!devlink->ops->trap_init || !devlink->ops->trap_action_set)
- return -EINVAL;
+ devl_assert_locked(devlink_port->devlink);
- devl_assert_locked(devlink);
- for (i = 0; i < traps_count; i++) {
- const struct devlink_trap *trap = &traps[i];
+ if (WARN_ON(devlink_port->devlink_rate))
+ return -EBUSY;
- err = devlink_trap_verify(trap);
- if (err)
- goto err_trap_verify;
+ devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL);
+ if (!devlink_rate)
+ return -ENOMEM;
- err = devlink_trap_register(devlink, trap, priv);
- if (err)
- goto err_trap_register;
+ if (parent) {
+ devlink_rate->parent = parent;
+ refcount_inc(&devlink_rate->parent->refcnt);
}
- return 0;
+ devlink_rate->type = DEVLINK_RATE_TYPE_LEAF;
+ devlink_rate->devlink = devlink;
+ devlink_rate->devlink_port = devlink_port;
+ devlink_rate->priv = priv;
+ list_add_tail(&devlink_rate->list, &devlink->rate_list);
+ devlink_port->devlink_rate = devlink_rate;
+ devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW);
-err_trap_register:
-err_trap_verify:
- for (i--; i >= 0; i--)
- devlink_trap_unregister(devlink, &traps[i]);
- return err;
+ return 0;
}
-EXPORT_SYMBOL_GPL(devl_traps_register);
+EXPORT_SYMBOL_GPL(devl_rate_leaf_create);
/**
- * devlink_traps_register - Register packet traps with devlink.
- * @devlink: devlink.
- * @traps: Packet traps.
- * @traps_count: Count of provided packet traps.
- * @priv: Driver private information.
- *
- * Context: Takes and release devlink->lock <mutex>.
+ * devl_rate_leaf_destroy - destroy devlink rate leaf
*
- * Return: Non-zero value on failure.
- */
-int devlink_traps_register(struct devlink *devlink,
- const struct devlink_trap *traps,
- size_t traps_count, void *priv)
-{
- int err;
-
- devl_lock(devlink);
- err = devl_traps_register(devlink, traps, traps_count, priv);
- devl_unlock(devlink);
- return err;
-}
-EXPORT_SYMBOL_GPL(devlink_traps_register);
-
-/**
- * devl_traps_unregister - Unregister packet traps from devlink.
- * @devlink: devlink.
- * @traps: Packet traps.
- * @traps_count: Count of provided packet traps.
- */
-void devl_traps_unregister(struct devlink *devlink,
- const struct devlink_trap *traps,
- size_t traps_count)
-{
- int i;
-
- devl_assert_locked(devlink);
- /* Make sure we do not have any packets in-flight while unregistering
- * traps by disabling all of them and waiting for a grace period.
- */
- for (i = traps_count - 1; i >= 0; i--)
- devlink_trap_disable(devlink, &traps[i]);
- synchronize_rcu();
- for (i = traps_count - 1; i >= 0; i--)
- devlink_trap_unregister(devlink, &traps[i]);
-}
-EXPORT_SYMBOL_GPL(devl_traps_unregister);
-
-/**
- * devlink_traps_unregister - Unregister packet traps from devlink.
- * @devlink: devlink.
- * @traps: Packet traps.
- * @traps_count: Count of provided packet traps.
+ * @devlink_port: devlink port linked to the rate object
*
- * Context: Takes and release devlink->lock <mutex>.
- */
-void devlink_traps_unregister(struct devlink *devlink,
- const struct devlink_trap *traps,
- size_t traps_count)
-{
- devl_lock(devlink);
- devl_traps_unregister(devlink, traps, traps_count);
- devl_unlock(devlink);
-}
-EXPORT_SYMBOL_GPL(devlink_traps_unregister);
-
-static void
-devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats,
- size_t skb_len)
-{
- struct devlink_stats *stats;
-
- stats = this_cpu_ptr(trap_stats);
- u64_stats_update_begin(&stats->syncp);
- u64_stats_add(&stats->rx_bytes, skb_len);
- u64_stats_inc(&stats->rx_packets);
- u64_stats_update_end(&stats->syncp);
-}
-
-static void
-devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata,
- const struct devlink_trap_item *trap_item,
- struct devlink_port *in_devlink_port,
- const struct flow_action_cookie *fa_cookie)
-{
- metadata->trap_name = trap_item->trap->name;
- metadata->trap_group_name = trap_item->group_item->group->name;
- metadata->fa_cookie = fa_cookie;
- metadata->trap_type = trap_item->trap->type;
-
- spin_lock(&in_devlink_port->type_lock);
- if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH)
- metadata->input_dev = in_devlink_port->type_eth.netdev;
- spin_unlock(&in_devlink_port->type_lock);
-}
-
-/**
- * devlink_trap_report - Report trapped packet to drop monitor.
- * @devlink: devlink.
- * @skb: Trapped packet.
- * @trap_ctx: Trap context.
- * @in_devlink_port: Input devlink port.
- * @fa_cookie: Flow action cookie. Could be NULL.
+ * Destroy the devlink rate object of type leaf on provided @devlink_port.
*/
-void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
- void *trap_ctx, struct devlink_port *in_devlink_port,
- const struct flow_action_cookie *fa_cookie)
-
+void devl_rate_leaf_destroy(struct devlink_port *devlink_port)
{
- struct devlink_trap_item *trap_item = trap_ctx;
-
- devlink_trap_stats_update(trap_item->stats, skb->len);
- devlink_trap_stats_update(trap_item->group_item->stats, skb->len);
+ struct devlink_rate *devlink_rate = devlink_port->devlink_rate;
- if (tracepoint_enabled(devlink_trap_report)) {
- struct devlink_trap_metadata metadata = {};
+ devl_assert_locked(devlink_port->devlink);
+ if (!devlink_rate)
+ return;
- devlink_trap_report_metadata_set(&metadata, trap_item,
- in_devlink_port, fa_cookie);
- trace_devlink_trap_report(devlink, skb, &metadata);
- }
+ devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL);
+ if (devlink_rate->parent)
+ refcount_dec(&devlink_rate->parent->refcnt);
+ list_del(&devlink_rate->list);
+ devlink_port->devlink_rate = NULL;
+ kfree(devlink_rate);
}
-EXPORT_SYMBOL_GPL(devlink_trap_report);
+EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy);
/**
- * devlink_trap_ctx_priv - Trap context to driver private information.
- * @trap_ctx: Trap context.
+ * devl_rate_nodes_destroy - destroy all devlink rate nodes on device
+ * @devlink: devlink instance
*
- * Return: Driver private information passed during registration.
+ * Unset parent for all rate objects and destroy all rate nodes
+ * on specified device.
*/
-void *devlink_trap_ctx_priv(void *trap_ctx)
-{
- struct devlink_trap_item *trap_item = trap_ctx;
-
- return trap_item->priv;
-}
-EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv);
-
-static int
-devlink_trap_group_item_policer_link(struct devlink *devlink,
- struct devlink_trap_group_item *group_item)
-{
- u32 policer_id = group_item->group->init_policer_id;
- struct devlink_trap_policer_item *policer_item;
-
- if (policer_id == 0)
- return 0;
-
- policer_item = devlink_trap_policer_item_lookup(devlink, policer_id);
- if (WARN_ON_ONCE(!policer_item))
- return -EINVAL;
-
- group_item->policer_item = policer_item;
-
- return 0;
-}
-
-static int
-devlink_trap_group_register(struct devlink *devlink,
- const struct devlink_trap_group *group)
+void devl_rate_nodes_destroy(struct devlink *devlink)
{
- struct devlink_trap_group_item *group_item;
- int err;
+ static struct devlink_rate *devlink_rate, *tmp;
+ const struct devlink_ops *ops = devlink->ops;
- if (devlink_trap_group_item_lookup(devlink, group->name))
- return -EEXIST;
+ devl_assert_locked(devlink);
- group_item = kzalloc(sizeof(*group_item), GFP_KERNEL);
- if (!group_item)
- return -ENOMEM;
+ list_for_each_entry(devlink_rate, &devlink->rate_list, list) {
+ if (!devlink_rate->parent)
+ continue;
- group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats);
- if (!group_item->stats) {
- err = -ENOMEM;
- goto err_stats_alloc;
+ refcount_dec(&devlink_rate->parent->refcnt);
+ if (devlink_rate_is_leaf(devlink_rate))
+ ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv,
+ NULL, NULL);
+ else if (devlink_rate_is_node(devlink_rate))
+ ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv,
+ NULL, NULL);
+ }
+ list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) {
+ if (devlink_rate_is_node(devlink_rate)) {
+ ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL);
+ list_del(&devlink_rate->list);
+ kfree(devlink_rate->name);
+ kfree(devlink_rate);
+ }
}
+}
+EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy);
- group_item->group = group;
+static int devlink_linecard_types_init(struct devlink_linecard *linecard)
+{
+ struct devlink_linecard_type *linecard_type;
+ unsigned int count;
+ int i;
- err = devlink_trap_group_item_policer_link(devlink, group_item);
- if (err)
- goto err_policer_link;
+ count = linecard->ops->types_count(linecard, linecard->priv);
+ linecard->types = kmalloc_array(count, sizeof(*linecard_type),
+ GFP_KERNEL);
+ if (!linecard->types)
+ return -ENOMEM;
+ linecard->types_count = count;
- if (devlink->ops->trap_group_init) {
- err = devlink->ops->trap_group_init(devlink, group);
- if (err)
- goto err_group_init;
+ for (i = 0; i < count; i++) {
+ linecard_type = &linecard->types[i];
+ linecard->ops->types_get(linecard, linecard->priv, i,
+ &linecard_type->type,
+ &linecard_type->priv);
}
-
- list_add_tail(&group_item->list, &devlink->trap_group_list);
- devlink_trap_group_notify(devlink, group_item,
- DEVLINK_CMD_TRAP_GROUP_NEW);
-
return 0;
-
-err_group_init:
-err_policer_link:
- free_percpu(group_item->stats);
-err_stats_alloc:
- kfree(group_item);
- return err;
}
-static void
-devlink_trap_group_unregister(struct devlink *devlink,
- const struct devlink_trap_group *group)
+static void devlink_linecard_types_fini(struct devlink_linecard *linecard)
{
- struct devlink_trap_group_item *group_item;
-
- group_item = devlink_trap_group_item_lookup(devlink, group->name);
- if (WARN_ON_ONCE(!group_item))
- return;
-
- devlink_trap_group_notify(devlink, group_item,
- DEVLINK_CMD_TRAP_GROUP_DEL);
- list_del(&group_item->list);
- free_percpu(group_item->stats);
- kfree(group_item);
+ kfree(linecard->types);
}
/**
- * devl_trap_groups_register - Register packet trap groups with devlink.
- * @devlink: devlink.
- * @groups: Packet trap groups.
- * @groups_count: Count of provided packet trap groups.
+ * devl_linecard_create - Create devlink linecard
+ *
+ * @devlink: devlink
+ * @linecard_index: driver-specific numerical identifier of the linecard
+ * @ops: linecards ops
+ * @priv: user priv pointer
*
- * Return: Non-zero value on failure.
+ * Create devlink linecard instance with provided linecard index.
+ * Caller can use any indexing, even hw-related one.
+ *
+ * Return: Line card structure or an ERR_PTR() encoded error code.
*/
-int devl_trap_groups_register(struct devlink *devlink,
- const struct devlink_trap_group *groups,
- size_t groups_count)
+struct devlink_linecard *
+devl_linecard_create(struct devlink *devlink, unsigned int linecard_index,
+ const struct devlink_linecard_ops *ops, void *priv)
{
- int i, err;
+ struct devlink_linecard *linecard;
+ int err;
- devl_assert_locked(devlink);
- for (i = 0; i < groups_count; i++) {
- const struct devlink_trap_group *group = &groups[i];
+ if (WARN_ON(!ops || !ops->provision || !ops->unprovision ||
+ !ops->types_count || !ops->types_get))
+ return ERR_PTR(-EINVAL);
- err = devlink_trap_group_verify(group);
- if (err)
- goto err_trap_group_verify;
+ if (devlink_linecard_index_exists(devlink, linecard_index))
+ return ERR_PTR(-EEXIST);
- err = devlink_trap_group_register(devlink, group);
- if (err)
- goto err_trap_group_register;
- }
+ linecard = kzalloc(sizeof(*linecard), GFP_KERNEL);
+ if (!linecard)
+ return ERR_PTR(-ENOMEM);
- return 0;
+ linecard->devlink = devlink;
+ linecard->index = linecard_index;
+ linecard->ops = ops;
+ linecard->priv = priv;
+ linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
+ mutex_init(&linecard->state_lock);
-err_trap_group_register:
-err_trap_group_verify:
- for (i--; i >= 0; i--)
- devlink_trap_group_unregister(devlink, &groups[i]);
- return err;
+ err = devlink_linecard_types_init(linecard);
+ if (err) {
+ mutex_destroy(&linecard->state_lock);
+ kfree(linecard);
+ return ERR_PTR(err);
+ }
+
+ list_add_tail(&linecard->list, &devlink->linecard_list);
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
+ return linecard;
}
-EXPORT_SYMBOL_GPL(devl_trap_groups_register);
+EXPORT_SYMBOL_GPL(devl_linecard_create);
/**
- * devlink_trap_groups_register - Register packet trap groups with devlink.
- * @devlink: devlink.
- * @groups: Packet trap groups.
- * @groups_count: Count of provided packet trap groups.
- *
- * Context: Takes and release devlink->lock <mutex>.
+ * devl_linecard_destroy - Destroy devlink linecard
*
- * Return: Non-zero value on failure.
+ * @linecard: devlink linecard
*/
-int devlink_trap_groups_register(struct devlink *devlink,
- const struct devlink_trap_group *groups,
- size_t groups_count)
+void devl_linecard_destroy(struct devlink_linecard *linecard)
{
- int err;
-
- devl_lock(devlink);
- err = devl_trap_groups_register(devlink, groups, groups_count);
- devl_unlock(devlink);
- return err;
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_DEL);
+ list_del(&linecard->list);
+ devlink_linecard_types_fini(linecard);
+ mutex_destroy(&linecard->state_lock);
+ kfree(linecard);
}
-EXPORT_SYMBOL_GPL(devlink_trap_groups_register);
+EXPORT_SYMBOL_GPL(devl_linecard_destroy);
/**
- * devl_trap_groups_unregister - Unregister packet trap groups from devlink.
- * @devlink: devlink.
- * @groups: Packet trap groups.
- * @groups_count: Count of provided packet trap groups.
+ * devlink_linecard_provision_set - Set provisioning on linecard
+ *
+ * @linecard: devlink linecard
+ * @type: linecard type
+ *
+ * This is either called directly from the provision() op call or
+ * as a result of the provision() op call asynchronously.
*/
-void devl_trap_groups_unregister(struct devlink *devlink,
- const struct devlink_trap_group *groups,
- size_t groups_count)
+void devlink_linecard_provision_set(struct devlink_linecard *linecard,
+ const char *type)
{
- int i;
-
- devl_assert_locked(devlink);
- for (i = groups_count - 1; i >= 0; i--)
- devlink_trap_group_unregister(devlink, &groups[i]);
+ mutex_lock(&linecard->state_lock);
+ WARN_ON(linecard->type && strcmp(linecard->type, type));
+ linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED;
+ linecard->type = type;
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
+ mutex_unlock(&linecard->state_lock);
}
-EXPORT_SYMBOL_GPL(devl_trap_groups_unregister);
+EXPORT_SYMBOL_GPL(devlink_linecard_provision_set);
/**
- * devlink_trap_groups_unregister - Unregister packet trap groups from devlink.
- * @devlink: devlink.
- * @groups: Packet trap groups.
- * @groups_count: Count of provided packet trap groups.
+ * devlink_linecard_provision_clear - Clear provisioning on linecard
+ *
+ * @linecard: devlink linecard
*
- * Context: Takes and release devlink->lock <mutex>.
+ * This is either called directly from the unprovision() op call or
+ * as a result of the unprovision() op call asynchronously.
*/
-void devlink_trap_groups_unregister(struct devlink *devlink,
- const struct devlink_trap_group *groups,
- size_t groups_count)
-{
- devl_lock(devlink);
- devl_trap_groups_unregister(devlink, groups, groups_count);
- devl_unlock(devlink);
-}
-EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister);
-
-static void
-devlink_trap_policer_notify(struct devlink *devlink,
- const struct devlink_trap_policer_item *policer_item,
- enum devlink_command cmd)
-{
- struct sk_buff *msg;
- int err;
-
- WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW &&
- cmd != DEVLINK_CMD_TRAP_POLICER_DEL);
- if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
- return;
-
- msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return;
-
- err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, 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 void devlink_trap_policers_notify_register(struct devlink *devlink)
-{
- struct devlink_trap_policer_item *policer_item;
-
- list_for_each_entry(policer_item, &devlink->trap_policer_list, list)
- devlink_trap_policer_notify(devlink, policer_item,
- DEVLINK_CMD_TRAP_POLICER_NEW);
-}
-
-static void devlink_trap_policers_notify_unregister(struct devlink *devlink)
+void devlink_linecard_provision_clear(struct devlink_linecard *linecard)
{
- struct devlink_trap_policer_item *policer_item;
-
- list_for_each_entry_reverse(policer_item, &devlink->trap_policer_list,
- list)
- devlink_trap_policer_notify(devlink, policer_item,
- DEVLINK_CMD_TRAP_POLICER_DEL);
+ mutex_lock(&linecard->state_lock);
+ WARN_ON(linecard->nested_devlink);
+ linecard->state = DEVLINK_LINECARD_STATE_UNPROVISIONED;
+ linecard->type = NULL;
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
+ mutex_unlock(&linecard->state_lock);
}
+EXPORT_SYMBOL_GPL(devlink_linecard_provision_clear);
-static int
-devlink_trap_policer_register(struct devlink *devlink,
- const struct devlink_trap_policer *policer)
+/**
+ * devlink_linecard_provision_fail - Fail provisioning on linecard
+ *
+ * @linecard: devlink linecard
+ *
+ * This is either called directly from the provision() op call or
+ * as a result of the provision() op call asynchronously.
+ */
+void devlink_linecard_provision_fail(struct devlink_linecard *linecard)
{
- struct devlink_trap_policer_item *policer_item;
- int err;
-
- if (devlink_trap_policer_item_lookup(devlink, policer->id))
- return -EEXIST;
-
- policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL);
- if (!policer_item)
- return -ENOMEM;
-
- policer_item->policer = policer;
- policer_item->rate = policer->init_rate;
- policer_item->burst = policer->init_burst;
-
- if (devlink->ops->trap_policer_init) {
- err = devlink->ops->trap_policer_init(devlink, policer);
- if (err)
- goto err_policer_init;
- }
-
- list_add_tail(&policer_item->list, &devlink->trap_policer_list);
- devlink_trap_policer_notify(devlink, policer_item,
- DEVLINK_CMD_TRAP_POLICER_NEW);
-
- return 0;
-
-err_policer_init:
- kfree(policer_item);
- return err;
+ mutex_lock(&linecard->state_lock);
+ WARN_ON(linecard->nested_devlink);
+ linecard->state = DEVLINK_LINECARD_STATE_PROVISIONING_FAILED;
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
+ mutex_unlock(&linecard->state_lock);
}
+EXPORT_SYMBOL_GPL(devlink_linecard_provision_fail);
-static void
-devlink_trap_policer_unregister(struct devlink *devlink,
- const struct devlink_trap_policer *policer)
+/**
+ * devlink_linecard_activate - Set linecard active
+ *
+ * @linecard: devlink linecard
+ */
+void devlink_linecard_activate(struct devlink_linecard *linecard)
{
- struct devlink_trap_policer_item *policer_item;
-
- policer_item = devlink_trap_policer_item_lookup(devlink, policer->id);
- if (WARN_ON_ONCE(!policer_item))
- return;
-
- devlink_trap_policer_notify(devlink, policer_item,
- DEVLINK_CMD_TRAP_POLICER_DEL);
- list_del(&policer_item->list);
- if (devlink->ops->trap_policer_fini)
- devlink->ops->trap_policer_fini(devlink, policer);
- kfree(policer_item);
+ mutex_lock(&linecard->state_lock);
+ WARN_ON(linecard->state != DEVLINK_LINECARD_STATE_PROVISIONED);
+ linecard->state = DEVLINK_LINECARD_STATE_ACTIVE;
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
+ mutex_unlock(&linecard->state_lock);
}
+EXPORT_SYMBOL_GPL(devlink_linecard_activate);
/**
- * devl_trap_policers_register - Register packet trap policers with devlink.
- * @devlink: devlink.
- * @policers: Packet trap policers.
- * @policers_count: Count of provided packet trap policers.
+ * devlink_linecard_deactivate - Set linecard inactive
*
- * Return: Non-zero value on failure.
+ * @linecard: devlink linecard
*/
-int
-devl_trap_policers_register(struct devlink *devlink,
- const struct devlink_trap_policer *policers,
- size_t policers_count)
+void devlink_linecard_deactivate(struct devlink_linecard *linecard)
{
- int i, err;
-
- devl_assert_locked(devlink);
- for (i = 0; i < policers_count; i++) {
- const struct devlink_trap_policer *policer = &policers[i];
-
- if (WARN_ON(policer->id == 0 ||
- policer->max_rate < policer->min_rate ||
- policer->max_burst < policer->min_burst)) {
- err = -EINVAL;
- goto err_trap_policer_verify;
- }
-
- err = devlink_trap_policer_register(devlink, policer);
- if (err)
- goto err_trap_policer_register;
+ mutex_lock(&linecard->state_lock);
+ switch (linecard->state) {
+ case DEVLINK_LINECARD_STATE_ACTIVE:
+ linecard->state = DEVLINK_LINECARD_STATE_PROVISIONED;
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
+ break;
+ case DEVLINK_LINECARD_STATE_UNPROVISIONING:
+ /* Line card is being deactivated as part
+ * of unprovisioning flow.
+ */
+ break;
+ default:
+ WARN_ON(1);
+ break;
}
- return 0;
-
-err_trap_policer_register:
-err_trap_policer_verify:
- for (i--; i >= 0; i--)
- devlink_trap_policer_unregister(devlink, &policers[i]);
- return err;
+ mutex_unlock(&linecard->state_lock);
}
-EXPORT_SYMBOL_GPL(devl_trap_policers_register);
+EXPORT_SYMBOL_GPL(devlink_linecard_deactivate);
/**
- * devl_trap_policers_unregister - Unregister packet trap policers from devlink.
- * @devlink: devlink.
- * @policers: Packet trap policers.
- * @policers_count: Count of provided packet trap policers.
+ * devlink_linecard_nested_dl_set - Attach/detach nested devlink
+ * instance to linecard.
+ *
+ * @linecard: devlink linecard
+ * @nested_devlink: devlink instance to attach or NULL to detach
*/
-void
-devl_trap_policers_unregister(struct devlink *devlink,
- const struct devlink_trap_policer *policers,
- size_t policers_count)
+void devlink_linecard_nested_dl_set(struct devlink_linecard *linecard,
+ struct devlink *nested_devlink)
{
- int i;
-
- devl_assert_locked(devlink);
- for (i = policers_count - 1; i >= 0; i--)
- devlink_trap_policer_unregister(devlink, &policers[i]);
+ mutex_lock(&linecard->state_lock);
+ linecard->nested_devlink = nested_devlink;
+ devlink_linecard_notify(linecard, DEVLINK_CMD_LINECARD_NEW);
+ mutex_unlock(&linecard->state_lock);
}
-EXPORT_SYMBOL_GPL(devl_trap_policers_unregister);
+EXPORT_SYMBOL_GPL(devlink_linecard_nested_dl_set);
diff --git a/net/devlink/trap.c b/net/devlink/trap.c
new file mode 100644
index 000000000000..c26bf9b29bca
--- /dev/null
+++ b/net/devlink/trap.c
@@ -0,0 +1,1861 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016 Jiri Pirko <jiri@...lanox.com>
+ */
+
+#include <trace/events/devlink.h>
+
+#include "devl_internal.h"
+
+struct devlink_stats {
+ u64_stats_t rx_bytes;
+ u64_stats_t rx_packets;
+ struct u64_stats_sync syncp;
+};
+
+/**
+ * struct devlink_trap_policer_item - Packet trap policer attributes.
+ * @policer: Immutable packet trap policer attributes.
+ * @rate: Rate in packets / sec.
+ * @burst: Burst size in packets.
+ * @list: trap_policer_list member.
+ *
+ * Describes packet trap policer attributes. Created by devlink during trap
+ * policer registration.
+ */
+struct devlink_trap_policer_item {
+ const struct devlink_trap_policer *policer;
+ u64 rate;
+ u64 burst;
+ struct list_head list;
+};
+
+/**
+ * struct devlink_trap_group_item - Packet trap group attributes.
+ * @group: Immutable packet trap group attributes.
+ * @policer_item: Associated policer item. Can be NULL.
+ * @list: trap_group_list member.
+ * @stats: Trap group statistics.
+ *
+ * Describes packet trap group attributes. Created by devlink during trap
+ * group registration.
+ */
+struct devlink_trap_group_item {
+ const struct devlink_trap_group *group;
+ struct devlink_trap_policer_item *policer_item;
+ struct list_head list;
+ struct devlink_stats __percpu *stats;
+};
+
+/**
+ * struct devlink_trap_item - Packet trap attributes.
+ * @trap: Immutable packet trap attributes.
+ * @group_item: Associated group item.
+ * @list: trap_list member.
+ * @action: Trap action.
+ * @stats: Trap statistics.
+ * @priv: Driver private information.
+ *
+ * Describes both mutable and immutable packet trap attributes. Created by
+ * devlink during trap registration and used for all trap related operations.
+ */
+struct devlink_trap_item {
+ const struct devlink_trap *trap;
+ struct devlink_trap_group_item *group_item;
+ struct list_head list;
+ enum devlink_trap_action action;
+ struct devlink_stats __percpu *stats;
+ void *priv;
+};
+
+static struct devlink_trap_policer_item *
+devlink_trap_policer_item_lookup(struct devlink *devlink, u32 id)
+{
+ struct devlink_trap_policer_item *policer_item;
+
+ list_for_each_entry(policer_item, &devlink->trap_policer_list, list) {
+ if (policer_item->policer->id == id)
+ return policer_item;
+ }
+
+ return NULL;
+}
+
+static struct devlink_trap_item *
+devlink_trap_item_lookup(struct devlink *devlink, const char *name)
+{
+ struct devlink_trap_item *trap_item;
+
+ list_for_each_entry(trap_item, &devlink->trap_list, list) {
+ if (!strcmp(trap_item->trap->name, name))
+ return trap_item;
+ }
+
+ return NULL;
+}
+
+static struct devlink_trap_item *
+devlink_trap_item_get_from_info(struct devlink *devlink,
+ struct genl_info *info)
+{
+ struct nlattr *attr;
+
+ if (!info->attrs[DEVLINK_ATTR_TRAP_NAME])
+ return NULL;
+ attr = info->attrs[DEVLINK_ATTR_TRAP_NAME];
+
+ return devlink_trap_item_lookup(devlink, nla_data(attr));
+}
+
+static int
+devlink_trap_action_get_from_info(struct genl_info *info,
+ enum devlink_trap_action *p_trap_action)
+{
+ u8 val;
+
+ val = nla_get_u8(info->attrs[DEVLINK_ATTR_TRAP_ACTION]);
+ switch (val) {
+ case DEVLINK_TRAP_ACTION_DROP:
+ case DEVLINK_TRAP_ACTION_TRAP:
+ case DEVLINK_TRAP_ACTION_MIRROR:
+ *p_trap_action = val;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int devlink_trap_metadata_put(struct sk_buff *msg,
+ const struct devlink_trap *trap)
+{
+ struct nlattr *attr;
+
+ attr = nla_nest_start(msg, DEVLINK_ATTR_TRAP_METADATA);
+ if (!attr)
+ return -EMSGSIZE;
+
+ if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) &&
+ nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_IN_PORT))
+ goto nla_put_failure;
+ if ((trap->metadata_cap & DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE) &&
+ nla_put_flag(msg, DEVLINK_ATTR_TRAP_METADATA_TYPE_FA_COOKIE))
+ goto nla_put_failure;
+
+ nla_nest_end(msg, attr);
+
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(msg, attr);
+ return -EMSGSIZE;
+}
+
+static void devlink_trap_stats_read(struct devlink_stats __percpu *trap_stats,
+ struct devlink_stats *stats)
+{
+ int i;
+
+ memset(stats, 0, sizeof(*stats));
+ for_each_possible_cpu(i) {
+ struct devlink_stats *cpu_stats;
+ u64 rx_packets, rx_bytes;
+ unsigned int start;
+
+ cpu_stats = per_cpu_ptr(trap_stats, i);
+ do {
+ start = u64_stats_fetch_begin(&cpu_stats->syncp);
+ rx_packets = u64_stats_read(&cpu_stats->rx_packets);
+ rx_bytes = u64_stats_read(&cpu_stats->rx_bytes);
+ } while (u64_stats_fetch_retry(&cpu_stats->syncp, start));
+
+ u64_stats_add(&stats->rx_packets, rx_packets);
+ u64_stats_add(&stats->rx_bytes, rx_bytes);
+ }
+}
+
+static int
+devlink_trap_group_stats_put(struct sk_buff *msg,
+ struct devlink_stats __percpu *trap_stats)
+{
+ struct devlink_stats stats;
+ struct nlattr *attr;
+
+ devlink_trap_stats_read(trap_stats, &stats);
+
+ attr = nla_nest_start(msg, DEVLINK_ATTR_STATS);
+ if (!attr)
+ return -EMSGSIZE;
+
+ if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS,
+ u64_stats_read(&stats.rx_packets),
+ DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES,
+ u64_stats_read(&stats.rx_bytes),
+ DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ nla_nest_end(msg, attr);
+
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(msg, attr);
+ return -EMSGSIZE;
+}
+
+static int devlink_trap_stats_put(struct sk_buff *msg, struct devlink *devlink,
+ const struct devlink_trap_item *trap_item)
+{
+ struct devlink_stats stats;
+ struct nlattr *attr;
+ u64 drops = 0;
+ int err;
+
+ if (devlink->ops->trap_drop_counter_get) {
+ err = devlink->ops->trap_drop_counter_get(devlink,
+ trap_item->trap,
+ &drops);
+ if (err)
+ return err;
+ }
+
+ devlink_trap_stats_read(trap_item->stats, &stats);
+
+ attr = nla_nest_start(msg, DEVLINK_ATTR_STATS);
+ if (!attr)
+ return -EMSGSIZE;
+
+ if (devlink->ops->trap_drop_counter_get &&
+ nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops,
+ DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_PACKETS,
+ u64_stats_read(&stats.rx_packets),
+ DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_BYTES,
+ u64_stats_read(&stats.rx_bytes),
+ DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ nla_nest_end(msg, attr);
+
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(msg, attr);
+ return -EMSGSIZE;
+}
+
+static int devlink_nl_trap_fill(struct sk_buff *msg, struct devlink *devlink,
+ const struct devlink_trap_item *trap_item,
+ enum devlink_command cmd, u32 portid, u32 seq,
+ int flags)
+{
+ struct devlink_trap_group_item *group_item = trap_item->group_item;
+ void *hdr;
+ int 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_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME,
+ group_item->group->name))
+ goto nla_put_failure;
+
+ if (nla_put_string(msg, DEVLINK_ATTR_TRAP_NAME, trap_item->trap->name))
+ goto nla_put_failure;
+
+ if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_TYPE, trap_item->trap->type))
+ goto nla_put_failure;
+
+ if (trap_item->trap->generic &&
+ nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC))
+ goto nla_put_failure;
+
+ if (nla_put_u8(msg, DEVLINK_ATTR_TRAP_ACTION, trap_item->action))
+ goto nla_put_failure;
+
+ err = devlink_trap_metadata_put(msg, trap_item->trap);
+ if (err)
+ goto nla_put_failure;
+
+ err = devlink_trap_stats_put(msg, devlink, trap_item);
+ if (err)
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+int devlink_nl_trap_get_doit(struct sk_buff *skb, struct genl_info *info)
+{
+ struct netlink_ext_ack *extack = info->extack;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_trap_item *trap_item;
+ struct sk_buff *msg;
+ int err;
+
+ if (list_empty(&devlink->trap_list))
+ return -EOPNOTSUPP;
+
+ trap_item = devlink_trap_item_get_from_info(devlink, info);
+ if (!trap_item) {
+ NL_SET_ERR_MSG(extack, "Device did not register this trap");
+ return -ENOENT;
+ }
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ err = devlink_nl_trap_fill(msg, devlink, trap_item,
+ DEVLINK_CMD_TRAP_NEW, info->snd_portid,
+ info->snd_seq, 0);
+ if (err)
+ goto err_trap_fill;
+
+ return genlmsg_reply(msg, info);
+
+err_trap_fill:
+ nlmsg_free(msg);
+ return err;
+}
+
+static int devlink_nl_trap_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb, int flags)
+{
+ struct devlink_nl_dump_state *state = devlink_dump_state(cb);
+ struct devlink_trap_item *trap_item;
+ int idx = 0;
+ int err = 0;
+
+ list_for_each_entry(trap_item, &devlink->trap_list, list) {
+ if (idx < state->idx) {
+ idx++;
+ continue;
+ }
+ err = devlink_nl_trap_fill(msg, devlink, trap_item,
+ DEVLINK_CMD_TRAP_NEW,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, flags);
+ if (err) {
+ state->idx = idx;
+ break;
+ }
+ idx++;
+ }
+
+ return err;
+}
+
+int devlink_nl_trap_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_trap_get_dump_one);
+}
+
+static int __devlink_trap_action_set(struct devlink *devlink,
+ struct devlink_trap_item *trap_item,
+ enum devlink_trap_action trap_action,
+ struct netlink_ext_ack *extack)
+{
+ int err;
+
+ if (trap_item->action != trap_action &&
+ trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP) {
+ NL_SET_ERR_MSG(extack, "Cannot change action of non-drop traps. Skipping");
+ return 0;
+ }
+
+ err = devlink->ops->trap_action_set(devlink, trap_item->trap,
+ trap_action, extack);
+ if (err)
+ return err;
+
+ trap_item->action = trap_action;
+
+ return 0;
+}
+
+static int devlink_trap_action_set(struct devlink *devlink,
+ struct devlink_trap_item *trap_item,
+ struct genl_info *info)
+{
+ enum devlink_trap_action trap_action;
+ int err;
+
+ if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION])
+ return 0;
+
+ err = devlink_trap_action_get_from_info(info, &trap_action);
+ if (err) {
+ NL_SET_ERR_MSG(info->extack, "Invalid trap action");
+ return -EINVAL;
+ }
+
+ return __devlink_trap_action_set(devlink, trap_item, trap_action,
+ info->extack);
+}
+
+int devlink_nl_cmd_trap_set_doit(struct sk_buff *skb, struct genl_info *info)
+{
+ struct netlink_ext_ack *extack = info->extack;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_trap_item *trap_item;
+
+ if (list_empty(&devlink->trap_list))
+ return -EOPNOTSUPP;
+
+ trap_item = devlink_trap_item_get_from_info(devlink, info);
+ if (!trap_item) {
+ NL_SET_ERR_MSG(extack, "Device did not register this trap");
+ return -ENOENT;
+ }
+
+ return devlink_trap_action_set(devlink, trap_item, info);
+}
+
+static struct devlink_trap_group_item *
+devlink_trap_group_item_lookup(struct devlink *devlink, const char *name)
+{
+ struct devlink_trap_group_item *group_item;
+
+ list_for_each_entry(group_item, &devlink->trap_group_list, list) {
+ if (!strcmp(group_item->group->name, name))
+ return group_item;
+ }
+
+ return NULL;
+}
+
+static struct devlink_trap_group_item *
+devlink_trap_group_item_lookup_by_id(struct devlink *devlink, u16 id)
+{
+ struct devlink_trap_group_item *group_item;
+
+ list_for_each_entry(group_item, &devlink->trap_group_list, list) {
+ if (group_item->group->id == id)
+ return group_item;
+ }
+
+ return NULL;
+}
+
+static struct devlink_trap_group_item *
+devlink_trap_group_item_get_from_info(struct devlink *devlink,
+ struct genl_info *info)
+{
+ char *name;
+
+ if (!info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME])
+ return NULL;
+ name = nla_data(info->attrs[DEVLINK_ATTR_TRAP_GROUP_NAME]);
+
+ return devlink_trap_group_item_lookup(devlink, name);
+}
+
+static int
+devlink_nl_trap_group_fill(struct sk_buff *msg, struct devlink *devlink,
+ const struct devlink_trap_group_item *group_item,
+ enum devlink_command cmd, u32 portid, u32 seq,
+ int flags)
+{
+ void *hdr;
+ int 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_string(msg, DEVLINK_ATTR_TRAP_GROUP_NAME,
+ group_item->group->name))
+ goto nla_put_failure;
+
+ if (group_item->group->generic &&
+ nla_put_flag(msg, DEVLINK_ATTR_TRAP_GENERIC))
+ goto nla_put_failure;
+
+ if (group_item->policer_item &&
+ nla_put_u32(msg, DEVLINK_ATTR_TRAP_POLICER_ID,
+ group_item->policer_item->policer->id))
+ goto nla_put_failure;
+
+ err = devlink_trap_group_stats_put(msg, group_item->stats);
+ if (err)
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+int devlink_nl_trap_group_get_doit(struct sk_buff *skb, struct genl_info *info)
+{
+ struct netlink_ext_ack *extack = info->extack;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_trap_group_item *group_item;
+ struct sk_buff *msg;
+ int err;
+
+ if (list_empty(&devlink->trap_group_list))
+ return -EOPNOTSUPP;
+
+ group_item = devlink_trap_group_item_get_from_info(devlink, info);
+ if (!group_item) {
+ NL_SET_ERR_MSG(extack, "Device did not register this trap group");
+ return -ENOENT;
+ }
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ err = devlink_nl_trap_group_fill(msg, devlink, group_item,
+ DEVLINK_CMD_TRAP_GROUP_NEW,
+ info->snd_portid, info->snd_seq, 0);
+ if (err)
+ goto err_trap_group_fill;
+
+ return genlmsg_reply(msg, info);
+
+err_trap_group_fill:
+ nlmsg_free(msg);
+ return err;
+}
+
+static int devlink_nl_trap_group_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb,
+ int flags)
+{
+ struct devlink_nl_dump_state *state = devlink_dump_state(cb);
+ struct devlink_trap_group_item *group_item;
+ int idx = 0;
+ int err = 0;
+
+ list_for_each_entry(group_item, &devlink->trap_group_list, list) {
+ if (idx < state->idx) {
+ idx++;
+ continue;
+ }
+ err = devlink_nl_trap_group_fill(msg, devlink, group_item,
+ DEVLINK_CMD_TRAP_GROUP_NEW,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, flags);
+ if (err) {
+ state->idx = idx;
+ break;
+ }
+ idx++;
+ }
+
+ return err;
+}
+
+int devlink_nl_trap_group_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_trap_group_get_dump_one);
+}
+
+static int
+__devlink_trap_group_action_set(struct devlink *devlink,
+ struct devlink_trap_group_item *group_item,
+ enum devlink_trap_action trap_action,
+ struct netlink_ext_ack *extack)
+{
+ const char *group_name = group_item->group->name;
+ struct devlink_trap_item *trap_item;
+ int err;
+
+ if (devlink->ops->trap_group_action_set) {
+ err = devlink->ops->trap_group_action_set(devlink, group_item->group,
+ trap_action, extack);
+ if (err)
+ return err;
+
+ list_for_each_entry(trap_item, &devlink->trap_list, list) {
+ if (strcmp(trap_item->group_item->group->name, group_name))
+ continue;
+ if (trap_item->action != trap_action &&
+ trap_item->trap->type != DEVLINK_TRAP_TYPE_DROP)
+ continue;
+ trap_item->action = trap_action;
+ }
+
+ return 0;
+ }
+
+ list_for_each_entry(trap_item, &devlink->trap_list, list) {
+ if (strcmp(trap_item->group_item->group->name, group_name))
+ continue;
+ err = __devlink_trap_action_set(devlink, trap_item,
+ trap_action, extack);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int
+devlink_trap_group_action_set(struct devlink *devlink,
+ struct devlink_trap_group_item *group_item,
+ struct genl_info *info, bool *p_modified)
+{
+ enum devlink_trap_action trap_action;
+ int err;
+
+ if (!info->attrs[DEVLINK_ATTR_TRAP_ACTION])
+ return 0;
+
+ err = devlink_trap_action_get_from_info(info, &trap_action);
+ if (err) {
+ NL_SET_ERR_MSG(info->extack, "Invalid trap action");
+ return -EINVAL;
+ }
+
+ err = __devlink_trap_group_action_set(devlink, group_item, trap_action,
+ info->extack);
+ if (err)
+ return err;
+
+ *p_modified = true;
+
+ return 0;
+}
+
+static int devlink_trap_group_set(struct devlink *devlink,
+ struct devlink_trap_group_item *group_item,
+ struct genl_info *info)
+{
+ struct devlink_trap_policer_item *policer_item;
+ struct netlink_ext_ack *extack = info->extack;
+ const struct devlink_trap_policer *policer;
+ struct nlattr **attrs = info->attrs;
+ u32 policer_id;
+ int err;
+
+ if (!attrs[DEVLINK_ATTR_TRAP_POLICER_ID])
+ return 0;
+
+ if (!devlink->ops->trap_group_set)
+ return -EOPNOTSUPP;
+
+ policer_id = nla_get_u32(attrs[DEVLINK_ATTR_TRAP_POLICER_ID]);
+ policer_item = devlink_trap_policer_item_lookup(devlink, policer_id);
+ if (policer_id && !policer_item) {
+ NL_SET_ERR_MSG(extack, "Device did not register this trap policer");
+ return -ENOENT;
+ }
+ policer = policer_item ? policer_item->policer : NULL;
+
+ err = devlink->ops->trap_group_set(devlink, group_item->group, policer,
+ extack);
+ if (err)
+ return err;
+
+ group_item->policer_item = policer_item;
+
+ return 0;
+}
+
+int devlink_nl_cmd_trap_group_set_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct netlink_ext_ack *extack = info->extack;
+ struct devlink *devlink = info->user_ptr[0];
+ struct devlink_trap_group_item *group_item;
+ bool modified = false;
+ int err;
+
+ if (list_empty(&devlink->trap_group_list))
+ return -EOPNOTSUPP;
+
+ group_item = devlink_trap_group_item_get_from_info(devlink, info);
+ if (!group_item) {
+ NL_SET_ERR_MSG(extack, "Device did not register this trap group");
+ return -ENOENT;
+ }
+
+ err = devlink_trap_group_action_set(devlink, group_item, info,
+ &modified);
+ if (err)
+ return err;
+
+ err = devlink_trap_group_set(devlink, group_item, info);
+ if (err)
+ goto err_trap_group_set;
+
+ return 0;
+
+err_trap_group_set:
+ if (modified)
+ NL_SET_ERR_MSG(extack, "Trap group set failed, but some changes were committed already");
+ return err;
+}
+
+static struct devlink_trap_policer_item *
+devlink_trap_policer_item_get_from_info(struct devlink *devlink,
+ struct genl_info *info)
+{
+ u32 id;
+
+ if (!info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID])
+ return NULL;
+ id = nla_get_u32(info->attrs[DEVLINK_ATTR_TRAP_POLICER_ID]);
+
+ return devlink_trap_policer_item_lookup(devlink, id);
+}
+
+static int
+devlink_trap_policer_stats_put(struct sk_buff *msg, struct devlink *devlink,
+ const struct devlink_trap_policer *policer)
+{
+ struct nlattr *attr;
+ u64 drops;
+ int err;
+
+ if (!devlink->ops->trap_policer_counter_get)
+ return 0;
+
+ err = devlink->ops->trap_policer_counter_get(devlink, policer, &drops);
+ if (err)
+ return err;
+
+ attr = nla_nest_start(msg, DEVLINK_ATTR_STATS);
+ if (!attr)
+ return -EMSGSIZE;
+
+ if (nla_put_u64_64bit(msg, DEVLINK_ATTR_STATS_RX_DROPPED, drops,
+ DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ nla_nest_end(msg, attr);
+
+ return 0;
+
+nla_put_failure:
+ nla_nest_cancel(msg, attr);
+ return -EMSGSIZE;
+}
+
+static int
+devlink_nl_trap_policer_fill(struct sk_buff *msg, struct devlink *devlink,
+ const struct devlink_trap_policer_item *policer_item,
+ enum devlink_command cmd, u32 portid, u32 seq,
+ int flags)
+{
+ void *hdr;
+ int 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_TRAP_POLICER_ID,
+ policer_item->policer->id))
+ goto nla_put_failure;
+
+ if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_RATE,
+ policer_item->rate, DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ if (nla_put_u64_64bit(msg, DEVLINK_ATTR_TRAP_POLICER_BURST,
+ policer_item->burst, DEVLINK_ATTR_PAD))
+ goto nla_put_failure;
+
+ err = devlink_trap_policer_stats_put(msg, devlink,
+ policer_item->policer);
+ if (err)
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+int devlink_nl_trap_policer_get_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink_trap_policer_item *policer_item;
+ struct netlink_ext_ack *extack = info->extack;
+ struct devlink *devlink = info->user_ptr[0];
+ struct sk_buff *msg;
+ int err;
+
+ if (list_empty(&devlink->trap_policer_list))
+ return -EOPNOTSUPP;
+
+ policer_item = devlink_trap_policer_item_get_from_info(devlink, info);
+ if (!policer_item) {
+ NL_SET_ERR_MSG(extack, "Device did not register this trap policer");
+ return -ENOENT;
+ }
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ err = devlink_nl_trap_policer_fill(msg, devlink, policer_item,
+ DEVLINK_CMD_TRAP_POLICER_NEW,
+ info->snd_portid, info->snd_seq, 0);
+ if (err)
+ goto err_trap_policer_fill;
+
+ return genlmsg_reply(msg, info);
+
+err_trap_policer_fill:
+ nlmsg_free(msg);
+ return err;
+}
+
+static int devlink_nl_trap_policer_get_dump_one(struct sk_buff *msg,
+ struct devlink *devlink,
+ struct netlink_callback *cb,
+ int flags)
+{
+ struct devlink_nl_dump_state *state = devlink_dump_state(cb);
+ struct devlink_trap_policer_item *policer_item;
+ int idx = 0;
+ int err = 0;
+
+ list_for_each_entry(policer_item, &devlink->trap_policer_list, list) {
+ if (idx < state->idx) {
+ idx++;
+ continue;
+ }
+ err = devlink_nl_trap_policer_fill(msg, devlink, policer_item,
+ DEVLINK_CMD_TRAP_POLICER_NEW,
+ NETLINK_CB(cb->skb).portid,
+ cb->nlh->nlmsg_seq, flags);
+ if (err) {
+ state->idx = idx;
+ break;
+ }
+ idx++;
+ }
+
+ return err;
+}
+
+int devlink_nl_trap_policer_get_dumpit(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ return devlink_nl_dumpit(skb, cb, devlink_nl_trap_policer_get_dump_one);
+}
+
+static int
+devlink_trap_policer_set(struct devlink *devlink,
+ struct devlink_trap_policer_item *policer_item,
+ struct genl_info *info)
+{
+ struct netlink_ext_ack *extack = info->extack;
+ struct nlattr **attrs = info->attrs;
+ u64 rate, burst;
+ int err;
+
+ rate = policer_item->rate;
+ burst = policer_item->burst;
+
+ if (attrs[DEVLINK_ATTR_TRAP_POLICER_RATE])
+ rate = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_RATE]);
+
+ if (attrs[DEVLINK_ATTR_TRAP_POLICER_BURST])
+ burst = nla_get_u64(attrs[DEVLINK_ATTR_TRAP_POLICER_BURST]);
+
+ if (rate < policer_item->policer->min_rate) {
+ NL_SET_ERR_MSG(extack, "Policer rate lower than limit");
+ return -EINVAL;
+ }
+
+ if (rate > policer_item->policer->max_rate) {
+ NL_SET_ERR_MSG(extack, "Policer rate higher than limit");
+ return -EINVAL;
+ }
+
+ if (burst < policer_item->policer->min_burst) {
+ NL_SET_ERR_MSG(extack, "Policer burst size lower than limit");
+ return -EINVAL;
+ }
+
+ if (burst > policer_item->policer->max_burst) {
+ NL_SET_ERR_MSG(extack, "Policer burst size higher than limit");
+ return -EINVAL;
+ }
+
+ err = devlink->ops->trap_policer_set(devlink, policer_item->policer,
+ rate, burst, info->extack);
+ if (err)
+ return err;
+
+ policer_item->rate = rate;
+ policer_item->burst = burst;
+
+ return 0;
+}
+
+int devlink_nl_cmd_trap_policer_set_doit(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct devlink_trap_policer_item *policer_item;
+ struct netlink_ext_ack *extack = info->extack;
+ struct devlink *devlink = info->user_ptr[0];
+
+ if (list_empty(&devlink->trap_policer_list))
+ return -EOPNOTSUPP;
+
+ if (!devlink->ops->trap_policer_set)
+ return -EOPNOTSUPP;
+
+ policer_item = devlink_trap_policer_item_get_from_info(devlink, info);
+ if (!policer_item) {
+ NL_SET_ERR_MSG(extack, "Device did not register this trap policer");
+ return -ENOENT;
+ }
+
+ return devlink_trap_policer_set(devlink, policer_item, info);
+}
+
+#define DEVLINK_TRAP(_id, _type) \
+ { \
+ .type = DEVLINK_TRAP_TYPE_##_type, \
+ .id = DEVLINK_TRAP_GENERIC_ID_##_id, \
+ .name = DEVLINK_TRAP_GENERIC_NAME_##_id, \
+ }
+
+static const struct devlink_trap devlink_trap_generic[] = {
+ DEVLINK_TRAP(SMAC_MC, DROP),
+ DEVLINK_TRAP(VLAN_TAG_MISMATCH, DROP),
+ DEVLINK_TRAP(INGRESS_VLAN_FILTER, DROP),
+ DEVLINK_TRAP(INGRESS_STP_FILTER, DROP),
+ DEVLINK_TRAP(EMPTY_TX_LIST, DROP),
+ DEVLINK_TRAP(PORT_LOOPBACK_FILTER, DROP),
+ DEVLINK_TRAP(BLACKHOLE_ROUTE, DROP),
+ DEVLINK_TRAP(TTL_ERROR, EXCEPTION),
+ DEVLINK_TRAP(TAIL_DROP, DROP),
+ DEVLINK_TRAP(NON_IP_PACKET, DROP),
+ DEVLINK_TRAP(UC_DIP_MC_DMAC, DROP),
+ DEVLINK_TRAP(DIP_LB, DROP),
+ DEVLINK_TRAP(SIP_MC, DROP),
+ DEVLINK_TRAP(SIP_LB, DROP),
+ DEVLINK_TRAP(CORRUPTED_IP_HDR, DROP),
+ DEVLINK_TRAP(IPV4_SIP_BC, DROP),
+ DEVLINK_TRAP(IPV6_MC_DIP_RESERVED_SCOPE, DROP),
+ DEVLINK_TRAP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, DROP),
+ DEVLINK_TRAP(MTU_ERROR, EXCEPTION),
+ DEVLINK_TRAP(UNRESOLVED_NEIGH, EXCEPTION),
+ DEVLINK_TRAP(RPF, EXCEPTION),
+ DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION),
+ DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION),
+ DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION),
+ DEVLINK_TRAP(NON_ROUTABLE, DROP),
+ DEVLINK_TRAP(DECAP_ERROR, EXCEPTION),
+ DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP),
+ DEVLINK_TRAP(INGRESS_FLOW_ACTION_DROP, DROP),
+ DEVLINK_TRAP(EGRESS_FLOW_ACTION_DROP, DROP),
+ DEVLINK_TRAP(STP, CONTROL),
+ DEVLINK_TRAP(LACP, CONTROL),
+ DEVLINK_TRAP(LLDP, CONTROL),
+ DEVLINK_TRAP(IGMP_QUERY, CONTROL),
+ DEVLINK_TRAP(IGMP_V1_REPORT, CONTROL),
+ DEVLINK_TRAP(IGMP_V2_REPORT, CONTROL),
+ DEVLINK_TRAP(IGMP_V3_REPORT, CONTROL),
+ DEVLINK_TRAP(IGMP_V2_LEAVE, CONTROL),
+ DEVLINK_TRAP(MLD_QUERY, CONTROL),
+ DEVLINK_TRAP(MLD_V1_REPORT, CONTROL),
+ DEVLINK_TRAP(MLD_V2_REPORT, CONTROL),
+ DEVLINK_TRAP(MLD_V1_DONE, CONTROL),
+ DEVLINK_TRAP(IPV4_DHCP, CONTROL),
+ DEVLINK_TRAP(IPV6_DHCP, CONTROL),
+ DEVLINK_TRAP(ARP_REQUEST, CONTROL),
+ DEVLINK_TRAP(ARP_RESPONSE, CONTROL),
+ DEVLINK_TRAP(ARP_OVERLAY, CONTROL),
+ DEVLINK_TRAP(IPV6_NEIGH_SOLICIT, CONTROL),
+ DEVLINK_TRAP(IPV6_NEIGH_ADVERT, CONTROL),
+ DEVLINK_TRAP(IPV4_BFD, CONTROL),
+ DEVLINK_TRAP(IPV6_BFD, CONTROL),
+ DEVLINK_TRAP(IPV4_OSPF, CONTROL),
+ DEVLINK_TRAP(IPV6_OSPF, CONTROL),
+ DEVLINK_TRAP(IPV4_BGP, CONTROL),
+ DEVLINK_TRAP(IPV6_BGP, CONTROL),
+ DEVLINK_TRAP(IPV4_VRRP, CONTROL),
+ DEVLINK_TRAP(IPV6_VRRP, CONTROL),
+ DEVLINK_TRAP(IPV4_PIM, CONTROL),
+ DEVLINK_TRAP(IPV6_PIM, CONTROL),
+ DEVLINK_TRAP(UC_LB, CONTROL),
+ DEVLINK_TRAP(LOCAL_ROUTE, CONTROL),
+ DEVLINK_TRAP(EXTERNAL_ROUTE, CONTROL),
+ DEVLINK_TRAP(IPV6_UC_DIP_LINK_LOCAL_SCOPE, CONTROL),
+ DEVLINK_TRAP(IPV6_DIP_ALL_NODES, CONTROL),
+ DEVLINK_TRAP(IPV6_DIP_ALL_ROUTERS, CONTROL),
+ DEVLINK_TRAP(IPV6_ROUTER_SOLICIT, CONTROL),
+ DEVLINK_TRAP(IPV6_ROUTER_ADVERT, CONTROL),
+ DEVLINK_TRAP(IPV6_REDIRECT, CONTROL),
+ DEVLINK_TRAP(IPV4_ROUTER_ALERT, CONTROL),
+ DEVLINK_TRAP(IPV6_ROUTER_ALERT, CONTROL),
+ DEVLINK_TRAP(PTP_EVENT, CONTROL),
+ DEVLINK_TRAP(PTP_GENERAL, CONTROL),
+ DEVLINK_TRAP(FLOW_ACTION_SAMPLE, CONTROL),
+ DEVLINK_TRAP(FLOW_ACTION_TRAP, CONTROL),
+ DEVLINK_TRAP(EARLY_DROP, DROP),
+ DEVLINK_TRAP(VXLAN_PARSING, DROP),
+ DEVLINK_TRAP(LLC_SNAP_PARSING, DROP),
+ DEVLINK_TRAP(VLAN_PARSING, DROP),
+ DEVLINK_TRAP(PPPOE_PPP_PARSING, DROP),
+ DEVLINK_TRAP(MPLS_PARSING, DROP),
+ DEVLINK_TRAP(ARP_PARSING, DROP),
+ DEVLINK_TRAP(IP_1_PARSING, DROP),
+ DEVLINK_TRAP(IP_N_PARSING, DROP),
+ DEVLINK_TRAP(GRE_PARSING, DROP),
+ DEVLINK_TRAP(UDP_PARSING, DROP),
+ DEVLINK_TRAP(TCP_PARSING, DROP),
+ DEVLINK_TRAP(IPSEC_PARSING, DROP),
+ DEVLINK_TRAP(SCTP_PARSING, DROP),
+ DEVLINK_TRAP(DCCP_PARSING, DROP),
+ DEVLINK_TRAP(GTP_PARSING, DROP),
+ DEVLINK_TRAP(ESP_PARSING, DROP),
+ DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP),
+ DEVLINK_TRAP(DMAC_FILTER, DROP),
+ DEVLINK_TRAP(EAPOL, CONTROL),
+ DEVLINK_TRAP(LOCKED_PORT, DROP),
+};
+
+#define DEVLINK_TRAP_GROUP(_id) \
+ { \
+ .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id, \
+ .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id, \
+ }
+
+static const struct devlink_trap_group devlink_trap_group_generic[] = {
+ DEVLINK_TRAP_GROUP(L2_DROPS),
+ DEVLINK_TRAP_GROUP(L3_DROPS),
+ DEVLINK_TRAP_GROUP(L3_EXCEPTIONS),
+ DEVLINK_TRAP_GROUP(BUFFER_DROPS),
+ DEVLINK_TRAP_GROUP(TUNNEL_DROPS),
+ DEVLINK_TRAP_GROUP(ACL_DROPS),
+ DEVLINK_TRAP_GROUP(STP),
+ DEVLINK_TRAP_GROUP(LACP),
+ DEVLINK_TRAP_GROUP(LLDP),
+ DEVLINK_TRAP_GROUP(MC_SNOOPING),
+ DEVLINK_TRAP_GROUP(DHCP),
+ DEVLINK_TRAP_GROUP(NEIGH_DISCOVERY),
+ DEVLINK_TRAP_GROUP(BFD),
+ DEVLINK_TRAP_GROUP(OSPF),
+ DEVLINK_TRAP_GROUP(BGP),
+ DEVLINK_TRAP_GROUP(VRRP),
+ DEVLINK_TRAP_GROUP(PIM),
+ DEVLINK_TRAP_GROUP(UC_LB),
+ DEVLINK_TRAP_GROUP(LOCAL_DELIVERY),
+ DEVLINK_TRAP_GROUP(EXTERNAL_DELIVERY),
+ DEVLINK_TRAP_GROUP(IPV6),
+ DEVLINK_TRAP_GROUP(PTP_EVENT),
+ DEVLINK_TRAP_GROUP(PTP_GENERAL),
+ DEVLINK_TRAP_GROUP(ACL_SAMPLE),
+ DEVLINK_TRAP_GROUP(ACL_TRAP),
+ DEVLINK_TRAP_GROUP(PARSER_ERROR_DROPS),
+ DEVLINK_TRAP_GROUP(EAPOL),
+};
+
+static int devlink_trap_generic_verify(const struct devlink_trap *trap)
+{
+ if (trap->id > DEVLINK_TRAP_GENERIC_ID_MAX)
+ return -EINVAL;
+
+ if (strcmp(trap->name, devlink_trap_generic[trap->id].name))
+ return -EINVAL;
+
+ if (trap->type != devlink_trap_generic[trap->id].type)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int devlink_trap_driver_verify(const struct devlink_trap *trap)
+{
+ int i;
+
+ if (trap->id <= DEVLINK_TRAP_GENERIC_ID_MAX)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(devlink_trap_generic); i++) {
+ if (!strcmp(trap->name, devlink_trap_generic[i].name))
+ return -EEXIST;
+ }
+
+ return 0;
+}
+
+static int devlink_trap_verify(const struct devlink_trap *trap)
+{
+ if (!trap || !trap->name)
+ return -EINVAL;
+
+ if (trap->generic)
+ return devlink_trap_generic_verify(trap);
+ else
+ return devlink_trap_driver_verify(trap);
+}
+
+static int
+devlink_trap_group_generic_verify(const struct devlink_trap_group *group)
+{
+ if (group->id > DEVLINK_TRAP_GROUP_GENERIC_ID_MAX)
+ return -EINVAL;
+
+ if (strcmp(group->name, devlink_trap_group_generic[group->id].name))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+devlink_trap_group_driver_verify(const struct devlink_trap_group *group)
+{
+ int i;
+
+ if (group->id <= DEVLINK_TRAP_GROUP_GENERIC_ID_MAX)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(devlink_trap_group_generic); i++) {
+ if (!strcmp(group->name, devlink_trap_group_generic[i].name))
+ return -EEXIST;
+ }
+
+ return 0;
+}
+
+static int devlink_trap_group_verify(const struct devlink_trap_group *group)
+{
+ if (group->generic)
+ return devlink_trap_group_generic_verify(group);
+ else
+ return devlink_trap_group_driver_verify(group);
+}
+
+static void
+devlink_trap_group_notify(struct devlink *devlink,
+ const struct devlink_trap_group_item *group_item,
+ enum devlink_command cmd)
+{
+ struct sk_buff *msg;
+ int err;
+
+ WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_GROUP_NEW &&
+ cmd != DEVLINK_CMD_TRAP_GROUP_DEL);
+ if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
+ return;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ err = devlink_nl_trap_group_fill(msg, devlink, group_item, 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);
+}
+
+void devlink_trap_groups_notify_register(struct devlink *devlink)
+{
+ struct devlink_trap_group_item *group_item;
+
+ list_for_each_entry(group_item, &devlink->trap_group_list, list)
+ devlink_trap_group_notify(devlink, group_item,
+ DEVLINK_CMD_TRAP_GROUP_NEW);
+}
+
+void devlink_trap_groups_notify_unregister(struct devlink *devlink)
+{
+ struct devlink_trap_group_item *group_item;
+
+ list_for_each_entry_reverse(group_item, &devlink->trap_group_list, list)
+ devlink_trap_group_notify(devlink, group_item,
+ DEVLINK_CMD_TRAP_GROUP_DEL);
+}
+
+static int
+devlink_trap_item_group_link(struct devlink *devlink,
+ struct devlink_trap_item *trap_item)
+{
+ u16 group_id = trap_item->trap->init_group_id;
+ struct devlink_trap_group_item *group_item;
+
+ group_item = devlink_trap_group_item_lookup_by_id(devlink, group_id);
+ if (WARN_ON_ONCE(!group_item))
+ return -EINVAL;
+
+ trap_item->group_item = group_item;
+
+ return 0;
+}
+
+static void devlink_trap_notify(struct devlink *devlink,
+ const struct devlink_trap_item *trap_item,
+ enum devlink_command cmd)
+{
+ struct sk_buff *msg;
+ int err;
+
+ WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_NEW &&
+ cmd != DEVLINK_CMD_TRAP_DEL);
+ if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
+ return;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ err = devlink_nl_trap_fill(msg, devlink, trap_item, 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);
+}
+
+void devlink_traps_notify_register(struct devlink *devlink)
+{
+ struct devlink_trap_item *trap_item;
+
+ list_for_each_entry(trap_item, &devlink->trap_list, list)
+ devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW);
+}
+
+void devlink_traps_notify_unregister(struct devlink *devlink)
+{
+ struct devlink_trap_item *trap_item;
+
+ list_for_each_entry_reverse(trap_item, &devlink->trap_list, list)
+ devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL);
+}
+
+static int
+devlink_trap_register(struct devlink *devlink,
+ const struct devlink_trap *trap, void *priv)
+{
+ struct devlink_trap_item *trap_item;
+ int err;
+
+ if (devlink_trap_item_lookup(devlink, trap->name))
+ return -EEXIST;
+
+ trap_item = kzalloc(sizeof(*trap_item), GFP_KERNEL);
+ if (!trap_item)
+ return -ENOMEM;
+
+ trap_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats);
+ if (!trap_item->stats) {
+ err = -ENOMEM;
+ goto err_stats_alloc;
+ }
+
+ trap_item->trap = trap;
+ trap_item->action = trap->init_action;
+ trap_item->priv = priv;
+
+ err = devlink_trap_item_group_link(devlink, trap_item);
+ if (err)
+ goto err_group_link;
+
+ err = devlink->ops->trap_init(devlink, trap, trap_item);
+ if (err)
+ goto err_trap_init;
+
+ list_add_tail(&trap_item->list, &devlink->trap_list);
+ devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_NEW);
+
+ return 0;
+
+err_trap_init:
+err_group_link:
+ free_percpu(trap_item->stats);
+err_stats_alloc:
+ kfree(trap_item);
+ return err;
+}
+
+static void devlink_trap_unregister(struct devlink *devlink,
+ const struct devlink_trap *trap)
+{
+ struct devlink_trap_item *trap_item;
+
+ trap_item = devlink_trap_item_lookup(devlink, trap->name);
+ if (WARN_ON_ONCE(!trap_item))
+ return;
+
+ devlink_trap_notify(devlink, trap_item, DEVLINK_CMD_TRAP_DEL);
+ list_del(&trap_item->list);
+ if (devlink->ops->trap_fini)
+ devlink->ops->trap_fini(devlink, trap, trap_item);
+ free_percpu(trap_item->stats);
+ kfree(trap_item);
+}
+
+static void devlink_trap_disable(struct devlink *devlink,
+ const struct devlink_trap *trap)
+{
+ struct devlink_trap_item *trap_item;
+
+ trap_item = devlink_trap_item_lookup(devlink, trap->name);
+ if (WARN_ON_ONCE(!trap_item))
+ return;
+
+ devlink->ops->trap_action_set(devlink, trap, DEVLINK_TRAP_ACTION_DROP,
+ NULL);
+ trap_item->action = DEVLINK_TRAP_ACTION_DROP;
+}
+
+/**
+ * devl_traps_register - Register packet traps with devlink.
+ * @devlink: devlink.
+ * @traps: Packet traps.
+ * @traps_count: Count of provided packet traps.
+ * @priv: Driver private information.
+ *
+ * Return: Non-zero value on failure.
+ */
+int devl_traps_register(struct devlink *devlink,
+ const struct devlink_trap *traps,
+ size_t traps_count, void *priv)
+{
+ int i, err;
+
+ if (!devlink->ops->trap_init || !devlink->ops->trap_action_set)
+ return -EINVAL;
+
+ devl_assert_locked(devlink);
+ for (i = 0; i < traps_count; i++) {
+ const struct devlink_trap *trap = &traps[i];
+
+ err = devlink_trap_verify(trap);
+ if (err)
+ goto err_trap_verify;
+
+ err = devlink_trap_register(devlink, trap, priv);
+ if (err)
+ goto err_trap_register;
+ }
+
+ return 0;
+
+err_trap_register:
+err_trap_verify:
+ for (i--; i >= 0; i--)
+ devlink_trap_unregister(devlink, &traps[i]);
+ return err;
+}
+EXPORT_SYMBOL_GPL(devl_traps_register);
+
+/**
+ * devlink_traps_register - Register packet traps with devlink.
+ * @devlink: devlink.
+ * @traps: Packet traps.
+ * @traps_count: Count of provided packet traps.
+ * @priv: Driver private information.
+ *
+ * Context: Takes and release devlink->lock <mutex>.
+ *
+ * Return: Non-zero value on failure.
+ */
+int devlink_traps_register(struct devlink *devlink,
+ const struct devlink_trap *traps,
+ size_t traps_count, void *priv)
+{
+ int err;
+
+ devl_lock(devlink);
+ err = devl_traps_register(devlink, traps, traps_count, priv);
+ devl_unlock(devlink);
+ return err;
+}
+EXPORT_SYMBOL_GPL(devlink_traps_register);
+
+/**
+ * devl_traps_unregister - Unregister packet traps from devlink.
+ * @devlink: devlink.
+ * @traps: Packet traps.
+ * @traps_count: Count of provided packet traps.
+ */
+void devl_traps_unregister(struct devlink *devlink,
+ const struct devlink_trap *traps,
+ size_t traps_count)
+{
+ int i;
+
+ devl_assert_locked(devlink);
+ /* Make sure we do not have any packets in-flight while unregistering
+ * traps by disabling all of them and waiting for a grace period.
+ */
+ for (i = traps_count - 1; i >= 0; i--)
+ devlink_trap_disable(devlink, &traps[i]);
+ synchronize_rcu();
+ for (i = traps_count - 1; i >= 0; i--)
+ devlink_trap_unregister(devlink, &traps[i]);
+}
+EXPORT_SYMBOL_GPL(devl_traps_unregister);
+
+/**
+ * devlink_traps_unregister - Unregister packet traps from devlink.
+ * @devlink: devlink.
+ * @traps: Packet traps.
+ * @traps_count: Count of provided packet traps.
+ *
+ * Context: Takes and release devlink->lock <mutex>.
+ */
+void devlink_traps_unregister(struct devlink *devlink,
+ const struct devlink_trap *traps,
+ size_t traps_count)
+{
+ devl_lock(devlink);
+ devl_traps_unregister(devlink, traps, traps_count);
+ devl_unlock(devlink);
+}
+EXPORT_SYMBOL_GPL(devlink_traps_unregister);
+
+static void
+devlink_trap_stats_update(struct devlink_stats __percpu *trap_stats,
+ size_t skb_len)
+{
+ struct devlink_stats *stats;
+
+ stats = this_cpu_ptr(trap_stats);
+ u64_stats_update_begin(&stats->syncp);
+ u64_stats_add(&stats->rx_bytes, skb_len);
+ u64_stats_inc(&stats->rx_packets);
+ u64_stats_update_end(&stats->syncp);
+}
+
+static void
+devlink_trap_report_metadata_set(struct devlink_trap_metadata *metadata,
+ const struct devlink_trap_item *trap_item,
+ struct devlink_port *in_devlink_port,
+ const struct flow_action_cookie *fa_cookie)
+{
+ metadata->trap_name = trap_item->trap->name;
+ metadata->trap_group_name = trap_item->group_item->group->name;
+ metadata->fa_cookie = fa_cookie;
+ metadata->trap_type = trap_item->trap->type;
+
+ spin_lock(&in_devlink_port->type_lock);
+ if (in_devlink_port->type == DEVLINK_PORT_TYPE_ETH)
+ metadata->input_dev = in_devlink_port->type_eth.netdev;
+ spin_unlock(&in_devlink_port->type_lock);
+}
+
+/**
+ * devlink_trap_report - Report trapped packet to drop monitor.
+ * @devlink: devlink.
+ * @skb: Trapped packet.
+ * @trap_ctx: Trap context.
+ * @in_devlink_port: Input devlink port.
+ * @fa_cookie: Flow action cookie. Could be NULL.
+ */
+void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
+ void *trap_ctx, struct devlink_port *in_devlink_port,
+ const struct flow_action_cookie *fa_cookie)
+
+{
+ struct devlink_trap_item *trap_item = trap_ctx;
+
+ devlink_trap_stats_update(trap_item->stats, skb->len);
+ devlink_trap_stats_update(trap_item->group_item->stats, skb->len);
+
+ if (tracepoint_enabled(devlink_trap_report)) {
+ struct devlink_trap_metadata metadata = {};
+
+ devlink_trap_report_metadata_set(&metadata, trap_item,
+ in_devlink_port, fa_cookie);
+ trace_devlink_trap_report(devlink, skb, &metadata);
+ }
+}
+EXPORT_SYMBOL_GPL(devlink_trap_report);
+
+/**
+ * devlink_trap_ctx_priv - Trap context to driver private information.
+ * @trap_ctx: Trap context.
+ *
+ * Return: Driver private information passed during registration.
+ */
+void *devlink_trap_ctx_priv(void *trap_ctx)
+{
+ struct devlink_trap_item *trap_item = trap_ctx;
+
+ return trap_item->priv;
+}
+EXPORT_SYMBOL_GPL(devlink_trap_ctx_priv);
+
+static int
+devlink_trap_group_item_policer_link(struct devlink *devlink,
+ struct devlink_trap_group_item *group_item)
+{
+ u32 policer_id = group_item->group->init_policer_id;
+ struct devlink_trap_policer_item *policer_item;
+
+ if (policer_id == 0)
+ return 0;
+
+ policer_item = devlink_trap_policer_item_lookup(devlink, policer_id);
+ if (WARN_ON_ONCE(!policer_item))
+ return -EINVAL;
+
+ group_item->policer_item = policer_item;
+
+ return 0;
+}
+
+static int
+devlink_trap_group_register(struct devlink *devlink,
+ const struct devlink_trap_group *group)
+{
+ struct devlink_trap_group_item *group_item;
+ int err;
+
+ if (devlink_trap_group_item_lookup(devlink, group->name))
+ return -EEXIST;
+
+ group_item = kzalloc(sizeof(*group_item), GFP_KERNEL);
+ if (!group_item)
+ return -ENOMEM;
+
+ group_item->stats = netdev_alloc_pcpu_stats(struct devlink_stats);
+ if (!group_item->stats) {
+ err = -ENOMEM;
+ goto err_stats_alloc;
+ }
+
+ group_item->group = group;
+
+ err = devlink_trap_group_item_policer_link(devlink, group_item);
+ if (err)
+ goto err_policer_link;
+
+ if (devlink->ops->trap_group_init) {
+ err = devlink->ops->trap_group_init(devlink, group);
+ if (err)
+ goto err_group_init;
+ }
+
+ list_add_tail(&group_item->list, &devlink->trap_group_list);
+ devlink_trap_group_notify(devlink, group_item,
+ DEVLINK_CMD_TRAP_GROUP_NEW);
+
+ return 0;
+
+err_group_init:
+err_policer_link:
+ free_percpu(group_item->stats);
+err_stats_alloc:
+ kfree(group_item);
+ return err;
+}
+
+static void
+devlink_trap_group_unregister(struct devlink *devlink,
+ const struct devlink_trap_group *group)
+{
+ struct devlink_trap_group_item *group_item;
+
+ group_item = devlink_trap_group_item_lookup(devlink, group->name);
+ if (WARN_ON_ONCE(!group_item))
+ return;
+
+ devlink_trap_group_notify(devlink, group_item,
+ DEVLINK_CMD_TRAP_GROUP_DEL);
+ list_del(&group_item->list);
+ free_percpu(group_item->stats);
+ kfree(group_item);
+}
+
+/**
+ * devl_trap_groups_register - Register packet trap groups with devlink.
+ * @devlink: devlink.
+ * @groups: Packet trap groups.
+ * @groups_count: Count of provided packet trap groups.
+ *
+ * Return: Non-zero value on failure.
+ */
+int devl_trap_groups_register(struct devlink *devlink,
+ const struct devlink_trap_group *groups,
+ size_t groups_count)
+{
+ int i, err;
+
+ devl_assert_locked(devlink);
+ for (i = 0; i < groups_count; i++) {
+ const struct devlink_trap_group *group = &groups[i];
+
+ err = devlink_trap_group_verify(group);
+ if (err)
+ goto err_trap_group_verify;
+
+ err = devlink_trap_group_register(devlink, group);
+ if (err)
+ goto err_trap_group_register;
+ }
+
+ return 0;
+
+err_trap_group_register:
+err_trap_group_verify:
+ for (i--; i >= 0; i--)
+ devlink_trap_group_unregister(devlink, &groups[i]);
+ return err;
+}
+EXPORT_SYMBOL_GPL(devl_trap_groups_register);
+
+/**
+ * devlink_trap_groups_register - Register packet trap groups with devlink.
+ * @devlink: devlink.
+ * @groups: Packet trap groups.
+ * @groups_count: Count of provided packet trap groups.
+ *
+ * Context: Takes and release devlink->lock <mutex>.
+ *
+ * Return: Non-zero value on failure.
+ */
+int devlink_trap_groups_register(struct devlink *devlink,
+ const struct devlink_trap_group *groups,
+ size_t groups_count)
+{
+ int err;
+
+ devl_lock(devlink);
+ err = devl_trap_groups_register(devlink, groups, groups_count);
+ devl_unlock(devlink);
+ return err;
+}
+EXPORT_SYMBOL_GPL(devlink_trap_groups_register);
+
+/**
+ * devl_trap_groups_unregister - Unregister packet trap groups from devlink.
+ * @devlink: devlink.
+ * @groups: Packet trap groups.
+ * @groups_count: Count of provided packet trap groups.
+ */
+void devl_trap_groups_unregister(struct devlink *devlink,
+ const struct devlink_trap_group *groups,
+ size_t groups_count)
+{
+ int i;
+
+ devl_assert_locked(devlink);
+ for (i = groups_count - 1; i >= 0; i--)
+ devlink_trap_group_unregister(devlink, &groups[i]);
+}
+EXPORT_SYMBOL_GPL(devl_trap_groups_unregister);
+
+/**
+ * devlink_trap_groups_unregister - Unregister packet trap groups from devlink.
+ * @devlink: devlink.
+ * @groups: Packet trap groups.
+ * @groups_count: Count of provided packet trap groups.
+ *
+ * Context: Takes and release devlink->lock <mutex>.
+ */
+void devlink_trap_groups_unregister(struct devlink *devlink,
+ const struct devlink_trap_group *groups,
+ size_t groups_count)
+{
+ devl_lock(devlink);
+ devl_trap_groups_unregister(devlink, groups, groups_count);
+ devl_unlock(devlink);
+}
+EXPORT_SYMBOL_GPL(devlink_trap_groups_unregister);
+
+static void
+devlink_trap_policer_notify(struct devlink *devlink,
+ const struct devlink_trap_policer_item *policer_item,
+ enum devlink_command cmd)
+{
+ struct sk_buff *msg;
+ int err;
+
+ WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW &&
+ cmd != DEVLINK_CMD_TRAP_POLICER_DEL);
+ if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
+ return;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ err = devlink_nl_trap_policer_fill(msg, devlink, policer_item, 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);
+}
+
+void devlink_trap_policers_notify_register(struct devlink *devlink)
+{
+ struct devlink_trap_policer_item *policer_item;
+
+ list_for_each_entry(policer_item, &devlink->trap_policer_list, list)
+ devlink_trap_policer_notify(devlink, policer_item,
+ DEVLINK_CMD_TRAP_POLICER_NEW);
+}
+
+void devlink_trap_policers_notify_unregister(struct devlink *devlink)
+{
+ struct devlink_trap_policer_item *policer_item;
+
+ list_for_each_entry_reverse(policer_item, &devlink->trap_policer_list,
+ list)
+ devlink_trap_policer_notify(devlink, policer_item,
+ DEVLINK_CMD_TRAP_POLICER_DEL);
+}
+
+static int
+devlink_trap_policer_register(struct devlink *devlink,
+ const struct devlink_trap_policer *policer)
+{
+ struct devlink_trap_policer_item *policer_item;
+ int err;
+
+ if (devlink_trap_policer_item_lookup(devlink, policer->id))
+ return -EEXIST;
+
+ policer_item = kzalloc(sizeof(*policer_item), GFP_KERNEL);
+ if (!policer_item)
+ return -ENOMEM;
+
+ policer_item->policer = policer;
+ policer_item->rate = policer->init_rate;
+ policer_item->burst = policer->init_burst;
+
+ if (devlink->ops->trap_policer_init) {
+ err = devlink->ops->trap_policer_init(devlink, policer);
+ if (err)
+ goto err_policer_init;
+ }
+
+ list_add_tail(&policer_item->list, &devlink->trap_policer_list);
+ devlink_trap_policer_notify(devlink, policer_item,
+ DEVLINK_CMD_TRAP_POLICER_NEW);
+
+ return 0;
+
+err_policer_init:
+ kfree(policer_item);
+ return err;
+}
+
+static void
+devlink_trap_policer_unregister(struct devlink *devlink,
+ const struct devlink_trap_policer *policer)
+{
+ struct devlink_trap_policer_item *policer_item;
+
+ policer_item = devlink_trap_policer_item_lookup(devlink, policer->id);
+ if (WARN_ON_ONCE(!policer_item))
+ return;
+
+ devlink_trap_policer_notify(devlink, policer_item,
+ DEVLINK_CMD_TRAP_POLICER_DEL);
+ list_del(&policer_item->list);
+ if (devlink->ops->trap_policer_fini)
+ devlink->ops->trap_policer_fini(devlink, policer);
+ kfree(policer_item);
+}
+
+/**
+ * devl_trap_policers_register - Register packet trap policers with devlink.
+ * @devlink: devlink.
+ * @policers: Packet trap policers.
+ * @policers_count: Count of provided packet trap policers.
+ *
+ * Return: Non-zero value on failure.
+ */
+int
+devl_trap_policers_register(struct devlink *devlink,
+ const struct devlink_trap_policer *policers,
+ size_t policers_count)
+{
+ int i, err;
+
+ devl_assert_locked(devlink);
+ for (i = 0; i < policers_count; i++) {
+ const struct devlink_trap_policer *policer = &policers[i];
+
+ if (WARN_ON(policer->id == 0 ||
+ policer->max_rate < policer->min_rate ||
+ policer->max_burst < policer->min_burst)) {
+ err = -EINVAL;
+ goto err_trap_policer_verify;
+ }
+
+ err = devlink_trap_policer_register(devlink, policer);
+ if (err)
+ goto err_trap_policer_register;
+ }
+ return 0;
+
+err_trap_policer_register:
+err_trap_policer_verify:
+ for (i--; i >= 0; i--)
+ devlink_trap_policer_unregister(devlink, &policers[i]);
+ return err;
+}
+EXPORT_SYMBOL_GPL(devl_trap_policers_register);
+
+/**
+ * devl_trap_policers_unregister - Unregister packet trap policers from devlink.
+ * @devlink: devlink.
+ * @policers: Packet trap policers.
+ * @policers_count: Count of provided packet trap policers.
+ */
+void
+devl_trap_policers_unregister(struct devlink *devlink,
+ const struct devlink_trap_policer *policers,
+ size_t policers_count)
+{
+ int i;
+
+ devl_assert_locked(devlink);
+ for (i = policers_count - 1; i >= 0; i--)
+ devlink_trap_policer_unregister(devlink, &policers[i]);
+}
+EXPORT_SYMBOL_GPL(devl_trap_policers_unregister);
--
2.41.0
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