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nl80211: Add set/get for frag/rts threshold and retry limits

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Add new nl80211 attributes that can be used with NL80211_CMD_SET_WIPHY
and NL80211_CMD_GET_WIPHY to manage fragmentation/RTS threshold and
retry limits.

Since these values are stored in struct wiphy, remove the local copy
from mac80211 where feasible (frag & rts threshold). The retry limits
are currently needed in struct ieee80211_conf, but these could be
eventually removed since the driver should have access to the values
in struct wiphy.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen
2009-04-20 18:39:05 +02:00
committed by John W. Linville
parent 9e52b0623c
commit b9a5f8cab7
12 changed files with 372 additions and 151 deletions
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50
include/net/cfg80211.h
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@@ -743,6 +743,20 @@ struct cfg80211_ibss_params {
bool channel_fixed;
};
/**
* enum wiphy_params_flags - set_wiphy_params bitfield values
* WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
* WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
* WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
* WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
*/
enum wiphy_params_flags {
WIPHY_PARAM_RETRY_SHORT = 1 << 0,
WIPHY_PARAM_RETRY_LONG = 1 << 1,
WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2,
WIPHY_PARAM_RTS_THRESHOLD = 1 << 3,
};
/**
* struct cfg80211_ops - backend description for wireless configuration
*
@@ -823,6 +837,11 @@ struct cfg80211_ibss_params {
* cfg80211_ibss_joined(), also call that function when changing BSSID due
* to a merge.
* @leave_ibss: Leave the IBSS.
*
* @set_wiphy_params: Notify that wiphy parameters have changed;
* @changed bitfield (see &enum wiphy_params_flags) describes which values
* have changed. The actual parameter values are available in
* struct wiphy. If returning an error, no value should be changed.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy);
@@ -912,6 +931,8 @@ struct cfg80211_ops {
int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_ibss_params *params);
int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);
int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed);
};
/*
@@ -945,6 +966,11 @@ struct cfg80211_ops {
* @signal_type: signal type reported in &struct cfg80211_bss.
* @cipher_suites: supported cipher suites
* @n_cipher_suites: number of supported cipher suites
* @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
* @retry_long: Retry limit for long frames (dot11LongRetryLimit)
* @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
* -1 = fragmentation disabled, only odd values >= 256 used
* @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
*/
struct wiphy {
/* assign these fields before you register the wiphy */
@@ -967,6 +993,11 @@ struct wiphy {
int n_cipher_suites;
const u32 *cipher_suites;
u8 retry_short;
u8 retry_long;
u32 frag_threshold;
u32 rts_threshold;
/* If multiple wiphys are registered and you're handed e.g.
* a regular netdev with assigned ieee80211_ptr, you won't
* know whether it points to a wiphy your driver has registered
@@ -1345,6 +1376,25 @@ int cfg80211_ibss_wext_giwap(struct net_device *dev,
struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
struct iw_freq *freq);
int cfg80211_wext_siwrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rts, char *extra);
int cfg80211_wext_giwrts(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *rts, char *extra);
int cfg80211_wext_siwfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frag, char *extra);
int cfg80211_wext_giwfrag(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *frag, char *extra);
int cfg80211_wext_siwretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *retry, char *extra);
int cfg80211_wext_giwretry(struct net_device *dev,
struct iw_request_info *info,
struct iw_param *retry, char *extra);
/*
* callbacks for asynchronous cfg80211 methods, notification
* functions and BSS handling helpers