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nl80211: New command for setting TX rate mask for rate control

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Add a new NL80211_CMD_SET_TX_BITRATE_MASK command and related
attributes to provide support for setting TX rate mask for rate
control. This uses the existing cfg80211 set_bitrate_mask operation
that was previously used only with WEXT compat code (SIOCSIWRATE). The
nl80211 command allows more generic configuration of allowed rates as
a mask instead of fixed/max rate.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen
2009-12-29 12:59:45 +02:00
committed by John W. Linville
parent 37eb0b164c
commit 13ae75b103
3 changed files with 157 additions and 2 deletions
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44
include/linux/nl80211.h
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@@ -295,6 +295,10 @@
* This command is also used as an event to notify when a requested
* remain-on-channel duration has expired.
*
* @NL80211_CMD_SET_TX_BITRATE_MASK: Set the mask of rates to be used in TX
* rate selection. %NL80211_ATTR_IFINDEX is used to specify the interface
* and @NL80211_ATTR_TX_RATES the set of allowed rates.
*
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -381,6 +385,8 @@ enum nl80211_commands {
NL80211_CMD_REMAIN_ON_CHANNEL,
NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
NL80211_CMD_SET_TX_BITRATE_MASK,
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -640,6 +646,13 @@ enum nl80211_commands {
*
* @NL80211_ATTR_COOKIE: Generic 64-bit cookie to identify objects.
*
* @NL80211_ATTR_TX_RATES: Nested set of attributes
* (enum nl80211_tx_rate_attributes) describing TX rates per band. The
* enum nl80211_band value is used as the index (nla_type() of the nested
* data. If a band is not included, it will be configured to allow all
* rates based on negotiated supported rates information. This attribute
* is used with %NL80211_CMD_SET_TX_BITRATE_MASK.
*
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -783,6 +796,8 @@ enum nl80211_attrs {
NL80211_ATTR_WIPHY_COVERAGE_CLASS,
NL80211_ATTR_TX_RATES,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -1482,4 +1497,33 @@ enum nl80211_key_attributes {
NL80211_KEY_MAX = __NL80211_KEY_AFTER_LAST - 1
};
/**
* enum nl80211_tx_rate_attributes - TX rate set attributes
* @__NL80211_TXRATE_INVALID: invalid
* @NL80211_TXRATE_LEGACY: Legacy (non-MCS) rates allowed for TX rate selection
* in an array of rates as defined in IEEE 802.11 7.3.2.2 (u8 values with
* 1 = 500 kbps) but without the IE length restriction (at most
* %NL80211_MAX_SUPP_RATES in a single array).
* @__NL80211_TXRATE_AFTER_LAST: internal
* @NL80211_TXRATE_MAX: highest TX rate attribute
*/
enum nl80211_tx_rate_attributes {
__NL80211_TXRATE_INVALID,
NL80211_TXRATE_LEGACY,
/* keep last */
__NL80211_TXRATE_AFTER_LAST,
NL80211_TXRATE_MAX = __NL80211_TXRATE_AFTER_LAST - 1
};
/**
* enum nl80211_band - Frequency band
* @NL80211_BAND_2GHZ - 2.4 GHz ISM band
* @NL80211_BAND_5GHZ - around 5 GHz band (4.9 - 5.7 GHz)
*/
enum nl80211_band {
NL80211_BAND_2GHZ,
NL80211_BAND_5GHZ,
};
#endif /* __LINUX_NL80211_H */