Fri, Oct 27, 2017 at 11:26:52PM CEST, steven.l...@broadcom.com wrote: >On Fri, Oct 27, 2017 at 5:04 PM, Jiri Pirko <j...@resnulli.us> wrote: >> Fri, Oct 27, 2017 at 10:54:05PM CEST, steven.l...@broadcom.com wrote: >>>Add support for permanent config parameter get/set commands. Used >>>for persistent device configuration parameters. >>> >>>Signed-off-by: Steve Lin <steven.l...@broadcom.com> >>>Acked-by: Andy Gospodarek <go...@broadcom.com> >>>--- >>> include/net/devlink.h | 7 ++ >>> include/uapi/linux/devlink.h | 25 ++++ >>> net/core/devlink.c | 287 >>> +++++++++++++++++++++++++++++++++++++++++++ >>> 3 files changed, 319 insertions(+) >>> >>>diff --git a/include/net/devlink.h b/include/net/devlink.h >>>index b9654e1..c7dd912 100644 >>>--- a/include/net/devlink.h >>>+++ b/include/net/devlink.h >>>@@ -270,6 +270,13 @@ struct devlink_ops { >>> int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 >>> inline_mode); >>> int (*eswitch_encap_mode_get)(struct devlink *devlink, u8 >>> *p_encap_mode); >>> int (*eswitch_encap_mode_set)(struct devlink *devlink, u8 encap_mode); >>>+ int (*perm_config_get)(struct devlink *devlink, >>>+ enum devlink_perm_config_param param, u8 type, >>>+ union devlink_perm_config_value *value); >>>+ int (*perm_config_set)(struct devlink *devlink, >>>+ enum devlink_perm_config_param param, u8 type, >>>+ union devlink_perm_config_value *value, >>>+ u8 *restart_reqd); >> >> type should be enum and restart_reqd should be bool. > >Throughout devlink/netlink code, NLA_* types are not a named enum; >they're defined like this in netlink.h: > >enum { > NLA_UNSPEC, > NLA_U8, > NLA_U16, > NLA_U32, > .... additional types follow .... >}; > >and are, I believe referred to as u8 or u16 in the code. I could >define a new enum specifically for the config get/set types, but that >seems duplicative with the NLA_* types already defined - is that what >you're suggesting?
Yes, and that should be aligned with union devlink_perm_config_value. > >I will change restart_reqd to be bool. > >> >> [...] >> >> >>>+static int devlink_nl_single_param_set(struct sk_buff *msg, >>>+ struct devlink *devlink, >>>+ u32 param, u8 type, >>>+ union devlink_perm_config_value *value) >>>+{ >>>+ const struct devlink_ops *ops = devlink->ops; >>>+ struct nlattr *cfgparam_attr; >>>+ u8 need_restart; >>>+ int err; >>>+ >>>+ /* Now set parameter */ >>>+ err = ops->perm_config_set(devlink, param, type, value, >>>&need_restart); >>>+ if (err) >>>+ return err; >>>+ >>>+ cfgparam_attr = nla_nest_start(msg, DEVLINK_ATTR_PERM_CONFIG); >>>+ /* Update restart reqd - if any param needs restart, should be set */ >>>+ if (need_restart) { >>>+ err = nla_put_u8(msg, >>>+ DEVLINK_ATTR_PERM_CONFIG_RESTART_REQUIRED, >>>1); >> >> Why don't you just put this flag always? Otherwise it could be NLA_FLAG > >Ok, I will change to NLA_FLAG. > >Thanks, >Steve