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Diffstat (limited to 'net/core/devlink.c')
-rw-r--r--net/core/devlink.c422
1 files changed, 290 insertions, 132 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c
index da0a29f30885..d43bc52b8840 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -19,6 +19,8 @@
#include <linux/device.h>
#include <linux/list.h>
#include <linux/netdevice.h>
+#include <linux/spinlock.h>
+#include <linux/refcount.h>
#include <rdma/ib_verbs.h>
#include <net/netlink.h>
#include <net/genetlink.h>
@@ -543,12 +545,14 @@ static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink,
goto nla_put_failure;
if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index))
goto nla_put_failure;
+
+ spin_lock(&devlink_port->type_lock);
if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type))
- goto nla_put_failure;
+ goto nla_put_failure_type_locked;
if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET &&
nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE,
devlink_port->desired_type))
- goto nla_put_failure;
+ goto nla_put_failure_type_locked;
if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) {
struct net_device *netdev = devlink_port->type_dev;
@@ -557,7 +561,7 @@ static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink,
netdev->ifindex) ||
nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME,
netdev->name)))
- goto nla_put_failure;
+ goto nla_put_failure_type_locked;
}
if (devlink_port->type == DEVLINK_PORT_TYPE_IB) {
struct ib_device *ibdev = devlink_port->type_dev;
@@ -565,14 +569,17 @@ static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink,
if (ibdev &&
nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME,
ibdev->name))
- goto nla_put_failure;
+ goto nla_put_failure_type_locked;
}
+ spin_unlock(&devlink_port->type_lock);
if (devlink_nl_port_attrs_put(msg, devlink_port))
goto nla_put_failure;
genlmsg_end(msg, hdr);
return 0;
+nla_put_failure_type_locked:
+ spin_unlock(&devlink_port->type_lock);
nla_put_failure:
genlmsg_cancel(msg, hdr);
return -EMSGSIZE;
@@ -1041,14 +1048,15 @@ out:
static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index,
u16 pool_index, u32 size,
- enum devlink_sb_threshold_type threshold_type)
+ enum devlink_sb_threshold_type threshold_type,
+ struct netlink_ext_ack *extack)
{
const struct devlink_ops *ops = devlink->ops;
if (ops->sb_pool_set)
return ops->sb_pool_set(devlink, sb_index, pool_index,
- size, threshold_type);
+ size, threshold_type, extack);
return -EOPNOTSUPP;
}
@@ -1076,7 +1084,8 @@ static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb,
size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]);
return devlink_sb_pool_set(devlink, devlink_sb->index,
- pool_index, size, threshold_type);
+ pool_index, size, threshold_type,
+ info->extack);
}
static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg,
@@ -1237,14 +1246,15 @@ out:
static int devlink_sb_port_pool_set(struct devlink_port *devlink_port,
unsigned int sb_index, u16 pool_index,
- u32 threshold)
+ u32 threshold,
+ struct netlink_ext_ack *extack)
{
const struct devlink_ops *ops = devlink_port->devlink->ops;
if (ops->sb_port_pool_set)
return ops->sb_port_pool_set(devlink_port, sb_index,
- pool_index, threshold);
+ pool_index, threshold, extack);
return -EOPNOTSUPP;
}
@@ -1267,7 +1277,7 @@ static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb,
threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]);
return devlink_sb_port_pool_set(devlink_port, devlink_sb->index,
- pool_index, threshold);
+ pool_index, threshold, info->extack);
}
static int
@@ -1466,7 +1476,8 @@ out:
static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port,
unsigned int sb_index, u16 tc_index,
enum devlink_sb_pool_type pool_type,
- u16 pool_index, u32 threshold)
+ u16 pool_index, u32 threshold,
+ struct netlink_ext_ack *extack)
{
const struct devlink_ops *ops = devlink_port->devlink->ops;
@@ -1474,7 +1485,7 @@ static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port,
if (ops->sb_tc_pool_bind_set)
return ops->sb_tc_pool_bind_set(devlink_port, sb_index,
tc_index, pool_type,
- pool_index, threshold);
+ pool_index, threshold, extack);
return -EOPNOTSUPP;
}
@@ -1509,7 +1520,7 @@ static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb,
threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]);
return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index,
tc_index, pool_type,
- pool_index, threshold);
+ pool_index, threshold, info->extack);
}
static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb,
@@ -1661,7 +1672,7 @@ int devlink_dpipe_match_put(struct sk_buff *skb,
struct devlink_dpipe_field *field = &header->fields[match->field_id];
struct nlattr *match_attr;
- match_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_MATCH);
+ match_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_MATCH);
if (!match_attr)
return -EMSGSIZE;
@@ -1686,7 +1697,8 @@ static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table,
{
struct nlattr *matches_attr;
- matches_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_MATCHES);
+ matches_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_TABLE_MATCHES);
if (!matches_attr)
return -EMSGSIZE;
@@ -1708,7 +1720,7 @@ int devlink_dpipe_action_put(struct sk_buff *skb,
struct devlink_dpipe_field *field = &header->fields[action->field_id];
struct nlattr *action_attr;
- action_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ACTION);
+ action_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ACTION);
if (!action_attr)
return -EMSGSIZE;
@@ -1733,7 +1745,8 @@ static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table,
{
struct nlattr *actions_attr;
- actions_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_ACTIONS);
+ actions_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_TABLE_ACTIONS);
if (!actions_attr)
return -EMSGSIZE;
@@ -1755,7 +1768,7 @@ static int devlink_dpipe_table_put(struct sk_buff *skb,
u64 table_size;
table_size = table->table_ops->size_get(table->priv);
- table_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE);
+ table_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLE);
if (!table_attr)
return -EMSGSIZE;
@@ -1835,7 +1848,7 @@ start_again:
if (devlink_nl_put_handle(skb, devlink))
goto nla_put_failure;
- tables_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLES);
+ tables_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_TABLES);
if (!tables_attr)
goto nla_put_failure;
@@ -1936,8 +1949,8 @@ static int devlink_dpipe_action_values_put(struct sk_buff *skb,
int err;
for (i = 0; i < values_count; i++) {
- action_attr = nla_nest_start(skb,
- DEVLINK_ATTR_DPIPE_ACTION_VALUE);
+ action_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_ACTION_VALUE);
if (!action_attr)
return -EMSGSIZE;
err = devlink_dpipe_action_value_put(skb, &values[i]);
@@ -1973,8 +1986,8 @@ static int devlink_dpipe_match_values_put(struct sk_buff *skb,
int err;
for (i = 0; i < values_count; i++) {
- match_attr = nla_nest_start(skb,
- DEVLINK_ATTR_DPIPE_MATCH_VALUE);
+ match_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_MATCH_VALUE);
if (!match_attr)
return -EMSGSIZE;
err = devlink_dpipe_match_value_put(skb, &values[i]);
@@ -1995,7 +2008,7 @@ static int devlink_dpipe_entry_put(struct sk_buff *skb,
struct nlattr *entry_attr, *matches_attr, *actions_attr;
int err;
- entry_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ENTRY);
+ entry_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_ENTRY);
if (!entry_attr)
return -EMSGSIZE;
@@ -2007,8 +2020,8 @@ static int devlink_dpipe_entry_put(struct sk_buff *skb,
entry->counter, DEVLINK_ATTR_PAD))
goto nla_put_failure;
- matches_attr = nla_nest_start(skb,
- DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES);
+ matches_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES);
if (!matches_attr)
goto nla_put_failure;
@@ -2020,8 +2033,8 @@ static int devlink_dpipe_entry_put(struct sk_buff *skb,
}
nla_nest_end(skb, matches_attr);
- actions_attr = nla_nest_start(skb,
- DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES);
+ actions_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES);
if (!actions_attr)
goto nla_put_failure;
@@ -2078,8 +2091,8 @@ int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx)
devlink = dump_ctx->info->user_ptr[0];
if (devlink_nl_put_handle(dump_ctx->skb, devlink))
goto nla_put_failure;
- dump_ctx->nest = nla_nest_start(dump_ctx->skb,
- DEVLINK_ATTR_DPIPE_ENTRIES);
+ dump_ctx->nest = nla_nest_start_noflag(dump_ctx->skb,
+ DEVLINK_ATTR_DPIPE_ENTRIES);
if (!dump_ctx->nest)
goto nla_put_failure;
return 0;
@@ -2189,7 +2202,8 @@ static int devlink_dpipe_fields_put(struct sk_buff *skb,
for (i = 0; i < header->fields_count; i++) {
field = &header->fields[i];
- field_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_FIELD);
+ field_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_FIELD);
if (!field_attr)
return -EMSGSIZE;
if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) ||
@@ -2212,7 +2226,7 @@ static int devlink_dpipe_header_put(struct sk_buff *skb,
struct nlattr *fields_attr, *header_attr;
int err;
- header_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER);
+ header_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADER);
if (!header_attr)
return -EMSGSIZE;
@@ -2221,7 +2235,8 @@ static int devlink_dpipe_header_put(struct sk_buff *skb,
nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global))
goto nla_put_failure;
- fields_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER_FIELDS);
+ fields_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_DPIPE_HEADER_FIELDS);
if (!fields_attr)
goto nla_put_failure;
@@ -2268,7 +2283,7 @@ start_again:
if (devlink_nl_put_handle(skb, devlink))
goto nla_put_failure;
- headers_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADERS);
+ headers_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_DPIPE_HEADERS);
if (!headers_attr)
goto nla_put_failure;
@@ -2492,7 +2507,7 @@ static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb,
struct nlattr *child_resource_attr;
struct nlattr *resource_attr;
- resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE);
+ resource_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_RESOURCE);
if (!resource_attr)
return -EMSGSIZE;
@@ -2516,7 +2531,8 @@ static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb,
resource->size_valid))
goto nla_put_failure;
- child_resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST);
+ child_resource_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_RESOURCE_LIST);
if (!child_resource_attr)
goto nla_put_failure;
@@ -2567,7 +2583,8 @@ start_again:
if (devlink_nl_put_handle(skb, devlink))
goto nla_put_failure;
- resources_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST);
+ resources_attr = nla_nest_start_noflag(skb,
+ DEVLINK_ATTR_RESOURCE_LIST);
if (!resources_attr)
goto nla_put_failure;
@@ -2821,7 +2838,8 @@ devlink_nl_param_value_fill_one(struct sk_buff *msg,
{
struct nlattr *param_value_attr;
- param_value_attr = nla_nest_start(msg, DEVLINK_ATTR_PARAM_VALUE);
+ param_value_attr = nla_nest_start_noflag(msg,
+ DEVLINK_ATTR_PARAM_VALUE);
if (!param_value_attr)
goto nla_put_failure;
@@ -2912,7 +2930,7 @@ static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink,
if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index))
goto genlmsg_cancel;
- param_attr = nla_nest_start(msg, DEVLINK_ATTR_PARAM);
+ param_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PARAM);
if (!param_attr)
goto genlmsg_cancel;
if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name))
@@ -2926,7 +2944,8 @@ static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink,
if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type))
goto param_nest_cancel;
- param_values_list = nla_nest_start(msg, DEVLINK_ATTR_PARAM_VALUES_LIST);
+ param_values_list = nla_nest_start_noflag(msg,
+ DEVLINK_ATTR_PARAM_VALUES_LIST);
if (!param_values_list)
goto param_nest_cancel;
@@ -3326,7 +3345,7 @@ static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg,
struct nlattr *snap_attr;
int err;
- snap_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_SNAPSHOT);
+ snap_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_SNAPSHOT);
if (!snap_attr)
return -EINVAL;
@@ -3350,7 +3369,8 @@ static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg,
struct nlattr *snapshots_attr;
int err;
- snapshots_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_SNAPSHOTS);
+ snapshots_attr = nla_nest_start_noflag(msg,
+ DEVLINK_ATTR_REGION_SNAPSHOTS);
if (!snapshots_attr)
return -EINVAL;
@@ -3566,7 +3586,7 @@ static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg,
struct nlattr *chunk_attr;
int err;
- chunk_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_CHUNK);
+ chunk_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_REGION_CHUNK);
if (!chunk_attr)
return -EINVAL;
@@ -3640,7 +3660,6 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb,
struct netlink_callback *cb)
{
u64 ret_offset, start_offset, end_offset = 0;
- const struct genl_ops *ops = cb->data;
struct devlink_region *region;
struct nlattr *chunks_attr;
const char *region_name;
@@ -3656,8 +3675,10 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb,
if (!attrs)
return -ENOMEM;
- err = nlmsg_parse(cb->nlh, GENL_HDRLEN + devlink_nl_family.hdrsize,
- attrs, DEVLINK_ATTR_MAX, ops->policy, cb->extack);
+ err = nlmsg_parse_deprecated(cb->nlh,
+ GENL_HDRLEN + devlink_nl_family.hdrsize,
+ attrs, DEVLINK_ATTR_MAX,
+ devlink_nl_family.policy, cb->extack);
if (err)
goto out_free;
@@ -3699,7 +3720,7 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb,
if (err)
goto nla_put_failure;
- chunks_attr = nla_nest_start(skb, DEVLINK_ATTR_REGION_CHUNKS);
+ chunks_attr = nla_nest_start_noflag(skb, DEVLINK_ATTR_REGION_CHUNKS);
if (!chunks_attr) {
err = -EMSGSIZE;
goto nla_put_failure;
@@ -3775,7 +3796,7 @@ static int devlink_info_version_put(struct devlink_info_req *req, int attr,
struct nlattr *nest;
int err;
- nest = nla_nest_start(req->msg, attr);
+ nest = nla_nest_start_noflag(req->msg, attr);
if (!nest)
return -EMSGSIZE;
@@ -4303,7 +4324,7 @@ devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb,
int i = 0;
int err;
- fmsg_nlattr = nla_nest_start(skb, DEVLINK_ATTR_FMSG);
+ fmsg_nlattr = nla_nest_start_noflag(skb, DEVLINK_ATTR_FMSG);
if (!fmsg_nlattr)
return -EMSGSIZE;
@@ -4412,6 +4433,7 @@ struct devlink_health_reporter {
u64 error_count;
u64 recovery_count;
u64 last_recovery_ts;
+ refcount_t refcount;
};
void *
@@ -4427,6 +4449,7 @@ devlink_health_reporter_find_by_name(struct devlink *devlink,
{
struct devlink_health_reporter *reporter;
+ lockdep_assert_held(&devlink->reporters_lock);
list_for_each_entry(reporter, &devlink->reporter_list, list)
if (!strcmp(reporter->ops->name, reporter_name))
return reporter;
@@ -4450,7 +4473,7 @@ devlink_health_reporter_create(struct devlink *devlink,
{
struct devlink_health_reporter *reporter;
- mutex_lock(&devlink->lock);
+ mutex_lock(&devlink->reporters_lock);
if (devlink_health_reporter_find_by_name(devlink, ops->name)) {
reporter = ERR_PTR(-EEXIST);
goto unlock;
@@ -4474,9 +4497,10 @@ devlink_health_reporter_create(struct devlink *devlink,
reporter->graceful_period = graceful_period;
reporter->auto_recover = auto_recover;
mutex_init(&reporter->dump_lock);
+ refcount_set(&reporter->refcount, 1);
list_add_tail(&reporter->list, &devlink->reporter_list);
unlock:
- mutex_unlock(&devlink->lock);
+ mutex_unlock(&devlink->reporters_lock);
return reporter;
}
EXPORT_SYMBOL_GPL(devlink_health_reporter_create);
@@ -4489,9 +4513,12 @@ EXPORT_SYMBOL_GPL(devlink_health_reporter_create);
void
devlink_health_reporter_destroy(struct devlink_health_reporter *reporter)
{
- mutex_lock(&reporter->devlink->lock);
+ mutex_lock(&reporter->devlink->reporters_lock);
list_del(&reporter->list);
- mutex_unlock(&reporter->devlink->lock);
+ mutex_unlock(&reporter->devlink->reporters_lock);
+ while (refcount_read(&reporter->refcount) > 1)
+ msleep(100);
+ mutex_destroy(&reporter->dump_lock);
if (reporter->dump_fmsg)
devlink_fmsg_free(reporter->dump_fmsg);
kfree(reporter);
@@ -4627,6 +4654,7 @@ static struct devlink_health_reporter *
devlink_health_reporter_get_from_info(struct devlink *devlink,
struct genl_info *info)
{
+ struct devlink_health_reporter *reporter;
char *reporter_name;
if (!info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME])
@@ -4634,7 +4662,18 @@ devlink_health_reporter_get_from_info(struct devlink *devlink,
reporter_name =
nla_data(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]);
- return devlink_health_reporter_find_by_name(devlink, reporter_name);
+ mutex_lock(&devlink->reporters_lock);
+ reporter = devlink_health_reporter_find_by_name(devlink, reporter_name);
+ if (reporter)
+ refcount_inc(&reporter->refcount);
+ mutex_unlock(&devlink->reporters_lock);
+ return reporter;
+}
+
+static void
+devlink_health_reporter_put(struct devlink_health_reporter *reporter)
+{
+ refcount_dec(&reporter->refcount);
}
static int
@@ -4654,7 +4693,8 @@ devlink_nl_health_reporter_fill(struct sk_buff *msg,
if (devlink_nl_put_handle(msg, devlink))
goto genlmsg_cancel;
- reporter_attr = nla_nest_start(msg, DEVLINK_ATTR_HEALTH_REPORTER);
+ reporter_attr = nla_nest_start_noflag(msg,
+ DEVLINK_ATTR_HEALTH_REPORTER);
if (!reporter_attr)
goto genlmsg_cancel;
if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME,
@@ -4708,8 +4748,10 @@ static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb,
return -EINVAL;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
+ if (!msg) {
+ err = -ENOMEM;
+ goto out;
+ }
err = devlink_nl_health_reporter_fill(msg, devlink, reporter,
DEVLINK_CMD_HEALTH_REPORTER_GET,
@@ -4717,10 +4759,13 @@ static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb,
0);
if (err) {
nlmsg_free(msg);
- return err;
+ goto out;
}
- return genlmsg_reply(msg, info);
+ err = genlmsg_reply(msg, info);
+out:
+ devlink_health_reporter_put(reporter);
+ return err;
}
static int
@@ -4737,7 +4782,7 @@ devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg,
list_for_each_entry(devlink, &devlink_list, list) {
if (!net_eq(devlink_net(devlink), sock_net(msg->sk)))
continue;
- mutex_lock(&devlink->lock);
+ mutex_lock(&devlink->reporters_lock);
list_for_each_entry(reporter, &devlink->reporter_list,
list) {
if (idx < start) {
@@ -4751,12 +4796,12 @@ devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg,
cb->nlh->nlmsg_seq,
NLM_F_MULTI);
if (err) {
- mutex_unlock(&devlink->lock);
+ mutex_unlock(&devlink->reporters_lock);
goto out;
}
idx++;
}
- mutex_unlock(&devlink->lock);
+ mutex_unlock(&devlink->reporters_lock);
}
out:
mutex_unlock(&devlink_mutex);
@@ -4771,6 +4816,7 @@ devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb,
{
struct devlink *devlink = info->user_ptr[0];
struct devlink_health_reporter *reporter;
+ int err;
reporter = devlink_health_reporter_get_from_info(devlink, info);
if (!reporter)
@@ -4778,8 +4824,10 @@ devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb,
if (!reporter->ops->recover &&
(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] ||
- info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]))
- return -EOPNOTSUPP;
+ info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD])
reporter->graceful_period =
@@ -4789,7 +4837,11 @@ devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb,
reporter->auto_recover =
nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]);
+ devlink_health_reporter_put(reporter);
return 0;
+out:
+ devlink_health_reporter_put(reporter);
+ return err;
}
static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb,
@@ -4797,12 +4849,16 @@ static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb,
{
struct devlink *devlink = info->user_ptr[0];
struct devlink_health_reporter *reporter;
+ int err;
reporter = devlink_health_reporter_get_from_info(devlink, info);
if (!reporter)
return -EINVAL;
- return devlink_health_reporter_recover(reporter, NULL);
+ err = devlink_health_reporter_recover(reporter, NULL);
+
+ devlink_health_reporter_put(reporter);
+ return err;
}
static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb,
@@ -4817,12 +4873,16 @@ static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb,
if (!reporter)
return -EINVAL;
- if (!reporter->ops->diagnose)
+ if (!reporter->ops->diagnose) {
+ devlink_health_reporter_put(reporter);
return -EOPNOTSUPP;
+ }
fmsg = devlink_fmsg_alloc();
- if (!fmsg)
+ if (!fmsg) {
+ devlink_health_reporter_put(reporter);
return -ENOMEM;
+ }
err = devlink_fmsg_obj_nest_start(fmsg);
if (err)
@@ -4841,6 +4901,7 @@ static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb,
out:
devlink_fmsg_free(fmsg);
+ devlink_health_reporter_put(reporter);
return err;
}
@@ -4855,8 +4916,10 @@ static int devlink_nl_cmd_health_reporter_dump_get_doit(struct sk_buff *skb,
if (!reporter)
return -EINVAL;
- if (!reporter->ops->dump)
+ if (!reporter->ops->dump) {
+ devlink_health_reporter_put(reporter);
return -EOPNOTSUPP;
+ }
mutex_lock(&reporter->dump_lock);
err = devlink_health_do_dump(reporter, NULL);
@@ -4868,6 +4931,7 @@ static int devlink_nl_cmd_health_reporter_dump_get_doit(struct sk_buff *skb,
out:
mutex_unlock(&reporter->dump_lock);
+ devlink_health_reporter_put(reporter);
return err;
}
@@ -4882,12 +4946,15 @@ devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb,
if (!reporter)
return -EINVAL;
- if (!reporter->ops->dump)
+ if (!reporter->ops->dump) {
+ devlink_health_reporter_put(reporter);
return -EOPNOTSUPP;
+ }
mutex_lock(&reporter->dump_lock);
devlink_health_dump_clear(reporter);
mutex_unlock(&reporter->dump_lock);
+ devlink_health_reporter_put(reporter);
return 0;
}
@@ -4926,293 +4993,297 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
static const struct genl_ops devlink_nl_ops[] = {
{
.cmd = DEVLINK_CMD_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_get_doit,
.dumpit = devlink_nl_cmd_get_dumpit,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_PORT_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_port_get_doit,
.dumpit = devlink_nl_cmd_port_get_dumpit,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_PORT_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_port_set_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
},
{
.cmd = DEVLINK_CMD_PORT_SPLIT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_port_split_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_PORT_UNSPLIT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_port_unsplit_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_SB_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_get_doit,
.dumpit = devlink_nl_cmd_sb_get_dumpit,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NEED_SB,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_SB_POOL_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_pool_get_doit,
.dumpit = devlink_nl_cmd_sb_pool_get_dumpit,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NEED_SB,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_SB_POOL_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_pool_set_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NEED_SB,
},
{
.cmd = DEVLINK_CMD_SB_PORT_POOL_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_port_pool_get_doit,
.dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
DEVLINK_NL_FLAG_NEED_SB,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_SB_PORT_POOL_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_port_pool_set_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
DEVLINK_NL_FLAG_NEED_SB,
},
{
.cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit,
.dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
DEVLINK_NL_FLAG_NEED_SB,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT |
DEVLINK_NL_FLAG_NEED_SB,
},
{
.cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_occ_snapshot_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NEED_SB,
},
{
.cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_sb_occ_max_clear_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NEED_SB,
},
{
.cmd = DEVLINK_CMD_ESWITCH_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_eswitch_get_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
},
{
.cmd = DEVLINK_CMD_ESWITCH_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_eswitch_set_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_DPIPE_TABLE_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_dpipe_table_get,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_dpipe_entries_get,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_DPIPE_HEADERS_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_dpipe_headers_get,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_dpipe_table_counters_set,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
},
{
.cmd = DEVLINK_CMD_RESOURCE_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_resource_set,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
},
{
.cmd = DEVLINK_CMD_RESOURCE_DUMP,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_resource_dump,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_RELOAD,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_reload,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_PARAM_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_param_get_doit,
.dumpit = devlink_nl_cmd_param_get_dumpit,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_PARAM_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_param_set_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
},
{
.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,
- .policy = devlink_nl_policy,
.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,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_PORT,
},
{
.cmd = DEVLINK_CMD_REGION_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_region_get_doit,
.dumpit = devlink_nl_cmd_region_get_dumpit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
},
{
.cmd = DEVLINK_CMD_REGION_DEL,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_region_del,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
},
{
.cmd = DEVLINK_CMD_REGION_READ,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.dumpit = devlink_nl_cmd_region_read_dumpit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
},
{
.cmd = DEVLINK_CMD_INFO_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_info_get_doit,
.dumpit = devlink_nl_cmd_info_get_dumpit,
- .policy = devlink_nl_policy,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_get_doit,
.dumpit = devlink_nl_cmd_health_reporter_get_dumpit,
- .policy = devlink_nl_policy,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NO_LOCK,
/* can be retrieved by unprivileged users */
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_SET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_set_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_recover_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_diagnose_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
- .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+ .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
+ DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_health_reporter_dump_get_doit,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NO_LOCK,
},
{
.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,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK |
DEVLINK_NL_FLAG_NO_LOCK,
},
{
.cmd = DEVLINK_CMD_FLASH_UPDATE,
+ .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = devlink_nl_cmd_flash_update,
- .policy = devlink_nl_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
},
@@ -5222,6 +5293,7 @@ static struct genl_family devlink_nl_family __ro_after_init = {
.name = DEVLINK_GENL_NAME,
.version = DEVLINK_GENL_VERSION,
.maxattr = DEVLINK_ATTR_MAX,
+ .policy = devlink_nl_policy,
.netnsok = true,
.pre_doit = devlink_nl_pre_doit,
.post_doit = devlink_nl_post_doit,
@@ -5261,6 +5333,7 @@ struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size)
INIT_LIST_HEAD(&devlink->region_list);
INIT_LIST_HEAD(&devlink->reporter_list);
mutex_init(&devlink->lock);
+ mutex_init(&devlink->reporters_lock);
return devlink;
}
EXPORT_SYMBOL_GPL(devlink_alloc);
@@ -5303,6 +5376,8 @@ EXPORT_SYMBOL_GPL(devlink_unregister);
*/
void devlink_free(struct devlink *devlink)
{
+ mutex_destroy(&devlink->reporters_lock);
+ mutex_destroy(&devlink->lock);
WARN_ON(!list_empty(&devlink->reporter_list));
WARN_ON(!list_empty(&devlink->region_list));
WARN_ON(!list_empty(&devlink->param_list));
@@ -5340,6 +5415,7 @@ int devlink_port_register(struct devlink *devlink,
devlink_port->devlink = devlink;
devlink_port->index = port_index;
devlink_port->registered = true;
+ spin_lock_init(&devlink_port->type_lock);
list_add_tail(&devlink_port->list, &devlink->port_list);
INIT_LIST_HEAD(&devlink_port->param_list);
mutex_unlock(&devlink->lock);
@@ -5368,8 +5444,12 @@ static void __devlink_port_type_set(struct devlink_port *devlink_port,
enum devlink_port_type type,
void *type_dev)
{
+ if (WARN_ON(!devlink_port->registered))
+ return;
+ spin_lock(&devlink_port->type_lock);
devlink_port->type = type;
devlink_port->type_dev = type_dev;
+ spin_unlock(&devlink_port->type_lock);
devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
}
@@ -5382,8 +5462,39 @@ static void __devlink_port_type_set(struct devlink_port *devlink_port,
void devlink_port_type_eth_set(struct devlink_port *devlink_port,
struct net_device *netdev)
{
- return __devlink_port_type_set(devlink_port,
- DEVLINK_PORT_TYPE_ETH, netdev);
+ const struct net_device_ops *ops = netdev->netdev_ops;
+
+ /* If driver registers devlink port, it should set devlink port
+ * attributes accordingly so the compat functions are called
+ * and the original ops are not used.
+ */
+ if (ops->ndo_get_phys_port_name) {
+ /* Some drivers use the same set of ndos for netdevs
+ * that have devlink_port registered and also for
+ * those who don't. Make sure that ndo_get_phys_port_name
+ * returns -EOPNOTSUPP here in case it is defined.
+ * Warn if not.
+ */
+ char name[IFNAMSIZ];
+ int err;
+
+ err = ops->ndo_get_phys_port_name(netdev, name, sizeof(name));
+ WARN_ON(err != -EOPNOTSUPP);
+ }
+ if (ops->ndo_get_port_parent_id) {
+ /* Some drivers use the same set of ndos for netdevs
+ * that have devlink_port registered and also for
+ * those who don't. Make sure that ndo_get_port_parent_id
+ * returns -EOPNOTSUPP here in case it is defined.
+ * Warn if not.
+ */
+ struct netdev_phys_item_id ppid;
+ int err;
+
+ err = ops->ndo_get_port_parent_id(netdev, &ppid);
+ WARN_ON(err != -EOPNOTSUPP);
+ }
+ __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_ETH, netdev);
}
EXPORT_SYMBOL_GPL(devlink_port_type_eth_set);
@@ -5396,8 +5507,7 @@ EXPORT_SYMBOL_GPL(devlink_port_type_eth_set);
void devlink_port_type_ib_set(struct devlink_port *devlink_port,
struct ib_device *ibdev)
{
- return __devlink_port_type_set(devlink_port,
- DEVLINK_PORT_TYPE_IB, ibdev);
+ __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_IB, ibdev);
}
EXPORT_SYMBOL_GPL(devlink_port_type_ib_set);
@@ -5408,8 +5518,7 @@ EXPORT_SYMBOL_GPL(devlink_port_type_ib_set);
*/
void devlink_port_type_clear(struct devlink_port *devlink_port)
{
- return __devlink_port_type_set(devlink_port,
- DEVLINK_PORT_TYPE_NOTSET, NULL);
+ __devlink_port_type_set(devlink_port, DEVLINK_PORT_TYPE_NOTSET, NULL);
}
EXPORT_SYMBOL_GPL(devlink_port_type_clear);
@@ -5423,25 +5532,40 @@ EXPORT_SYMBOL_GPL(devlink_port_type_clear);
* @split: indicates if this is split port
* @split_subport_number: if the port is split, this is the number
* of subport.
+ * @switch_id: if the port is part of switch, this is buffer with ID,
+ * otwerwise this is NULL
+ * @switch_id_len: length of the switch_id buffer
*/
void devlink_port_attrs_set(struct devlink_port *devlink_port,
enum devlink_port_flavour flavour,
u32 port_number, bool split,
- u32 split_subport_number)
+ u32 split_subport_number,
+ const unsigned char *switch_id,
+ unsigned char switch_id_len)
{
struct devlink_port_attrs *attrs = &devlink_port->attrs;
+ if (WARN_ON(devlink_port->registered))
+ return;
attrs->set = true;
attrs->flavour = flavour;
attrs->port_number = port_number;
attrs->split = split;
attrs->split_subport_number = split_subport_number;
- devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
+ if (switch_id) {
+ attrs->switch_port = true;
+ if (WARN_ON(switch_id_len > MAX_PHYS_ITEM_ID_LEN))
+ switch_id_len = MAX_PHYS_ITEM_ID_LEN;
+ memcpy(attrs->switch_id.id, switch_id, switch_id_len);
+ attrs->switch_id.id_len = switch_id_len;
+ } else {
+ attrs->switch_port = false;
+ }
}
EXPORT_SYMBOL_GPL(devlink_port_attrs_set);
-int devlink_port_get_phys_port_name(struct devlink_port *devlink_port,
- char *name, size_t len)
+static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port,
+ char *name, size_t len)
{
struct devlink_port_attrs *attrs = &devlink_port->attrs;
int n = 0;
@@ -5471,7 +5595,6 @@ int devlink_port_get_phys_port_name(struct devlink_port *devlink_port,
return 0;
}
-EXPORT_SYMBOL_GPL(devlink_port_get_phys_port_name);
int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
u32 size, u16 ingress_pools_count,
@@ -6447,17 +6570,15 @@ void devlink_compat_running_version(struct net_device *dev,
dev_hold(dev);
rtnl_unlock();
- mutex_lock(&devlink_mutex);
devlink = netdev_to_devlink(dev);
if (!devlink || !devlink->ops->info_get)
- goto unlock_list;
+ goto out;
mutex_lock(&devlink->lock);
__devlink_compat_running_version(devlink, buf, len);
mutex_unlock(&devlink->lock);
-unlock_list:
- mutex_unlock(&devlink_mutex);
+out:
rtnl_lock();
dev_put(dev);
}
@@ -6465,28 +6586,65 @@ unlock_list:
int devlink_compat_flash_update(struct net_device *dev, const char *file_name)
{
struct devlink *devlink;
- int ret = -EOPNOTSUPP;
+ int ret;
dev_hold(dev);
rtnl_unlock();
- mutex_lock(&devlink_mutex);
devlink = netdev_to_devlink(dev);
- if (!devlink || !devlink->ops->flash_update)
- goto unlock_list;
+ if (!devlink || !devlink->ops->flash_update) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
mutex_lock(&devlink->lock);
ret = devlink->ops->flash_update(devlink, file_name, NULL, NULL);
mutex_unlock(&devlink->lock);
-unlock_list:
- mutex_unlock(&devlink_mutex);
+out:
rtnl_lock();
dev_put(dev);
return ret;
}
+int devlink_compat_phys_port_name_get(struct net_device *dev,
+ char *name, size_t len)
+{
+ struct devlink_port *devlink_port;
+
+ /* RTNL mutex is held here which ensures that devlink_port
+ * instance cannot disappear in the middle. No need to take
+ * any devlink lock as only permanent values are accessed.
+ */
+ ASSERT_RTNL();
+
+ devlink_port = netdev_to_devlink_port(dev);
+ if (!devlink_port)
+ return -EOPNOTSUPP;
+
+ return __devlink_port_phys_port_name_get(devlink_port, name, len);
+}
+
+int devlink_compat_switch_id_get(struct net_device *dev,
+ struct netdev_phys_item_id *ppid)
+{
+ struct devlink_port *devlink_port;
+
+ /* RTNL mutex is held here which ensures that devlink_port
+ * instance cannot disappear in the middle. No need to take
+ * any devlink lock as only permanent values are accessed.
+ */
+ ASSERT_RTNL();
+ devlink_port = netdev_to_devlink_port(dev);
+ if (!devlink_port || !devlink_port->attrs.switch_port)
+ return -EOPNOTSUPP;
+
+ memcpy(ppid, &devlink_port->attrs.switch_id, sizeof(*ppid));
+
+ return 0;
+}
+
static int __init devlink_init(void)
{
return genl_register_family(&devlink_nl_family);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.