diff options
| author | Arend van Spriel <arend@broadcom.com> | 2013-04-18 15:49:00 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-04-22 15:48:00 +0200 |
| commit | 5de17984898c5758fc6ebe08eccea9f4b6548914 (patch) | |
| tree | 17aab780c025cfac0bd5a8b010b8ea9c138ff780 /net/wireless/rdev-ops.h | |
| parent | a36473621c871df14bbf2106ab0721b475aac8e0 (diff) | |
| download | linux-5de17984898c5758fc6ebe08eccea9f4b6548914.tar.bz2 | |
cfg80211: introduce critical protocol indication from user-space
Some protocols need a more reliable connection to complete
successful in reasonable time. This patch adds a user-space
API to indicate the wireless driver that a critical protocol
is about to commence and when it is done, using nl80211 primitives
NL80211_CMD_CRIT_PROTOCOL_START and NL80211_CRIT_PROTOCOL_STOP.
There can be only on critical protocol session started per
registered cfg80211 device.
The driver can support this by implementing the cfg80211 callbacks
.crit_proto_start() and .crit_proto_stop(). Examples of protocols
that can benefit from this are DHCP, EAPOL, APIPA. Exactly how the
link can/should be made more reliable is up to the driver. Things
to consider are avoid scanning, no multi-channel operations, and
alter coexistence schemes.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/rdev-ops.h')
| -rw-r--r-- | net/wireless/rdev-ops.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index d77e1c1d3a0e..9f15f0ac824d 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -875,7 +875,7 @@ static inline void rdev_stop_p2p_device(struct cfg80211_registered_device *rdev, trace_rdev_stop_p2p_device(&rdev->wiphy, wdev); rdev->ops->stop_p2p_device(&rdev->wiphy, wdev); trace_rdev_return_void(&rdev->wiphy); -} +} static inline int rdev_set_mac_acl(struct cfg80211_registered_device *rdev, struct net_device *dev, @@ -901,4 +901,26 @@ static inline int rdev_update_ft_ies(struct cfg80211_registered_device *rdev, return ret; } +static inline int rdev_crit_proto_start(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, + enum nl80211_crit_proto_id protocol, + u16 duration) +{ + int ret; + + trace_rdev_crit_proto_start(&rdev->wiphy, wdev, protocol, duration); + ret = rdev->ops->crit_proto_start(&rdev->wiphy, wdev, + protocol, duration); + trace_rdev_return_int(&rdev->wiphy, ret); + return ret; +} + +static inline void rdev_crit_proto_stop(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev) +{ + trace_rdev_crit_proto_stop(&rdev->wiphy, wdev); + rdev->ops->crit_proto_stop(&rdev->wiphy, wdev); + trace_rdev_return_void(&rdev->wiphy); +} + #endif /* __CFG80211_RDEV_OPS */ |