diff options
Diffstat (limited to 'net/core/devlink.c')
| -rw-r--r-- | net/core/devlink.c | 206 |
1 files changed, 132 insertions, 74 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index da0a29f30885..7b91605e75d6 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -19,6 +19,7 @@ #include <linux/device.h> #include <linux/list.h> #include <linux/netdevice.h> +#include <linux/spinlock.h> #include <rdma/ib_verbs.h> #include <net/netlink.h> #include <net/genetlink.h> @@ -543,12 +544,14 @@ 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 +560,7 @@ 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 +568,17 @@ 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 +1047,15 @@ 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 +1083,8 @@ 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 +1245,15 @@ 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 +1276,7 @@ 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 +1475,8 @@ 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 +1484,7 @@ 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 +1519,7 @@ 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, @@ -3640,7 +3650,6 @@ 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; @@ -3657,7 +3666,8 @@ static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, return -ENOMEM; err = nlmsg_parse(cb->nlh, GENL_HDRLEN + devlink_nl_family.hdrsize, - attrs, DEVLINK_ATTR_MAX, ops->policy, cb->extack); + attrs, DEVLINK_ATTR_MAX, devlink_nl_family.policy, + cb->extack); if (err) goto out_free; @@ -4491,6 +4501,7 @@ devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) { mutex_lock(&reporter->devlink->lock); list_del(&reporter->list); + mutex_destroy(&reporter->dump_lock); mutex_unlock(&reporter->devlink->lock); if (reporter->dump_fmsg) devlink_fmsg_free(reporter->dump_fmsg); @@ -4928,7 +4939,6 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_GET, .doit = devlink_nl_cmd_get_doit, .dumpit = devlink_nl_cmd_get_dumpit, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, /* can be retrieved by unprivileged users */ }, @@ -4936,21 +4946,18 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_PORT_GET, .doit = devlink_nl_cmd_port_get_doit, .dumpit = devlink_nl_cmd_port_get_dumpit, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, /* can be retrieved by unprivileged users */ }, { .cmd = DEVLINK_CMD_PORT_SET, .doit = devlink_nl_cmd_port_set_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, }, { .cmd = DEVLINK_CMD_PORT_SPLIT, .doit = devlink_nl_cmd_port_split_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NO_LOCK, @@ -4958,7 +4965,6 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_PORT_UNSPLIT, .doit = devlink_nl_cmd_port_unsplit_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NO_LOCK, @@ -4967,7 +4973,6 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_SB_GET, .doit = devlink_nl_cmd_sb_get_doit, .dumpit = devlink_nl_cmd_sb_get_dumpit, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NEED_SB, /* can be retrieved by unprivileged users */ @@ -4976,7 +4981,6 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_SB_POOL_GET, .doit = devlink_nl_cmd_sb_pool_get_doit, .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NEED_SB, /* can be retrieved by unprivileged users */ @@ -4984,7 +4988,6 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_SB_POOL_SET, .doit = devlink_nl_cmd_sb_pool_set_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NEED_SB, @@ -4993,7 +4996,6 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, .doit = devlink_nl_cmd_sb_port_pool_get_doit, .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | DEVLINK_NL_FLAG_NEED_SB, /* can be retrieved by unprivileged users */ @@ -5001,7 +5003,6 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, .doit = devlink_nl_cmd_sb_port_pool_set_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | DEVLINK_NL_FLAG_NEED_SB, @@ -5010,7 +5011,6 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | DEVLINK_NL_FLAG_NEED_SB, /* can be retrieved by unprivileged users */ @@ -5018,7 +5018,6 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | DEVLINK_NL_FLAG_NEED_SB, @@ -5026,7 +5025,6 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, .doit = devlink_nl_cmd_sb_occ_snapshot_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NEED_SB, @@ -5034,7 +5032,6 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, .doit = devlink_nl_cmd_sb_occ_max_clear_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NEED_SB, @@ -5042,14 +5039,12 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_ESWITCH_GET, .doit = devlink_nl_cmd_eswitch_get_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, { .cmd = DEVLINK_CMD_ESWITCH_SET, .doit = devlink_nl_cmd_eswitch_set_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NO_LOCK, @@ -5057,49 +5052,42 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, .doit = devlink_nl_cmd_dpipe_table_get, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, /* can be retrieved by unprivileged users */ }, { .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, .doit = devlink_nl_cmd_dpipe_entries_get, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, /* can be retrieved by unprivileged users */ }, { .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, .doit = devlink_nl_cmd_dpipe_headers_get, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, /* can be retrieved by unprivileged users */ }, { .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, .doit = devlink_nl_cmd_dpipe_table_counters_set, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, { .cmd = DEVLINK_CMD_RESOURCE_SET, .doit = devlink_nl_cmd_resource_set, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, { .cmd = DEVLINK_CMD_RESOURCE_DUMP, .doit = devlink_nl_cmd_resource_dump, - .policy = devlink_nl_policy, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, /* can be retrieved by unprivileged users */ }, { .cmd = DEVLINK_CMD_RELOAD, .doit = devlink_nl_cmd_reload, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | DEVLINK_NL_FLAG_NO_LOCK, @@ -5108,14 +5096,12 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_PARAM_GET, .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, .doit = devlink_nl_cmd_param_set_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, @@ -5123,14 +5109,12 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_PORT_PARAM_GET, .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, .doit = devlink_nl_cmd_port_param_set_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, }, @@ -5138,21 +5122,18 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_REGION_GET, .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, .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, .dumpit = devlink_nl_cmd_region_read_dumpit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, @@ -5160,7 +5141,6 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_INFO_GET, .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 */ }, @@ -5168,35 +5148,30 @@ static const struct genl_ops devlink_nl_ops[] = { .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, .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, /* can be retrieved by unprivileged users */ }, { .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, .doit = devlink_nl_cmd_health_reporter_set_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, { .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, .doit = devlink_nl_cmd_health_reporter_recover_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, { .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, .doit = devlink_nl_cmd_health_reporter_diagnose_doit, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, { .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, .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, @@ -5204,7 +5179,6 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, .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, @@ -5212,7 +5186,6 @@ static const struct genl_ops devlink_nl_ops[] = { { .cmd = DEVLINK_CMD_FLASH_UPDATE, .doit = devlink_nl_cmd_flash_update, - .policy = devlink_nl_policy, .flags = GENL_ADMIN_PERM, .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, }, @@ -5222,6 +5195,7 @@ 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, @@ -5303,6 +5277,7 @@ EXPORT_SYMBOL_GPL(devlink_unregister); */ void devlink_free(struct devlink *devlink) { + 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 +5315,7 @@ 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 +5344,12 @@ 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 +5362,39 @@ 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 +5407,7 @@ 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 +5418,7 @@ 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 +5432,40 @@ 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 +5495,6 @@ 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 +6470,15 @@ 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 +6486,65 @@ 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); |