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| author | Beni Lev <beni.lev@intel.com> | 2016-02-17 19:30:00 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-02-24 09:04:41 +0100 |
| commit | 0c9ca11b1ae8eb16c1b6bbae91991392d2321372 (patch) | |
| tree | 546c9155db103c7127aba6f04a66cd87101cc6d0 /include | |
| parent | mac80211: move MU_MIMO_OWNER flag to ieee80211_vif (diff) | |
| download | linux-0c9ca11b1ae8eb16c1b6bbae91991392d2321372.tar.xz linux-0c9ca11b1ae8eb16c1b6bbae91991392d2321372.zip | |
cfg80211: Add global RRM capability
Today, the supplicant will add the RRM capabilities
Information Element in the association request only if
Quiet period is supported (NL80211_FEATURE_QUIET).
Quiet is one of many RRM features, and there are other RRM
features that are not related to Quiet (e.g. neighbor
report). Therefore, requiring Quiet to enable RRM is too
restrictive.
Some of the features, like neighbor report, can be
supported by user space without any help from the kernel.
Hence adding the RRM capabilities IE to association request
should be the sole user space's decision.
Removing the RRM dependency on Quiet in the driver solves
this problem, but using an old driver with a user space
tool that would not require Quiet feature would be
problematic: the user space would add NL80211_ATTR_USE_RRM
in the association request even if the kernel doesn't
advertize NL80211_FEATURE_QUIET and the association would
be denied by the kernel.
This solution adds a global RRM capability, that tells user
space that it can request RRM capabilities IE publishment
without any specific feature support in the kernel.
Signed-off-by: Beni Lev <beni.lev@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/nl80211.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 7758969a2a8e..5a30a7563633 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -1727,6 +1727,8 @@ enum nl80211_commands { * underlying device supports these minimal RRM features: * %NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES, * %NL80211_FEATURE_QUIET, + * Or, if global RRM is supported, see: + * %NL80211_EXT_FEATURE_RRM * If this flag is used, driver must add the Power Capabilities IE to the * association request. In addition, it must also set the RRM capability * flag in the association request's Capability Info field. @@ -4402,12 +4404,18 @@ enum nl80211_feature_flags { /** * enum nl80211_ext_feature_index - bit index of extended features. * @NL80211_EXT_FEATURE_VHT_IBSS: This driver supports IBSS with VHT datarates. + * @NL80211_EXT_FEATURE_RRM: This driver supports RRM. When featured, user can + * can request to use RRM (see %NL80211_ATTR_USE_RRM) with + * %NL80211_CMD_ASSOCIATE and %NL80211_CMD_CONNECT requests, which will set + * the ASSOC_REQ_USE_RRM flag in the association request even if + * NL80211_FEATURE_QUIET is not advertized. * * @NUM_NL80211_EXT_FEATURES: number of extended features. * @MAX_NL80211_EXT_FEATURES: highest extended feature index. */ enum nl80211_ext_feature_index { NL80211_EXT_FEATURE_VHT_IBSS, + NL80211_EXT_FEATURE_RRM, /* add new features before the definition below */ NUM_NL80211_EXT_FEATURES, |