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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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24
include/linux/nl80211.h
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@@ -46,8 +46,10 @@
* to get a list of all present wiphys.
* @NL80211_CMD_SET_WIPHY: set wiphy parameters, needs %NL80211_ATTR_WIPHY or
* %NL80211_ATTR_IFINDEX; can be used to set %NL80211_ATTR_WIPHY_NAME,
* %NL80211_ATTR_WIPHY_TXQ_PARAMS, %NL80211_ATTR_WIPHY_FREQ, and/or
* %NL80211_ATTR_WIPHY_CHANNEL_TYPE.
* %NL80211_ATTR_WIPHY_TXQ_PARAMS, %NL80211_ATTR_WIPHY_FREQ,
* %NL80211_ATTR_WIPHY_CHANNEL_TYPE, %NL80211_ATTR_WIPHY_RETRY_SHORT,
* %NL80211_ATTR_WIPHY_RETRY_LONG, %NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
* and/or %NL80211_ATTR_WIPHY_RTS_THRESHOLD.
* @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request
* or rename notification. Has attributes %NL80211_ATTR_WIPHY and
* %NL80211_ATTR_WIPHY_NAME.
@@ -337,6 +339,18 @@ enum nl80211_commands {
* NL80211_CHAN_HT20 = HT20 only
* NL80211_CHAN_HT40MINUS = secondary channel is below the primary channel
* NL80211_CHAN_HT40PLUS = secondary channel is above the primary channel
* @NL80211_ATTR_WIPHY_RETRY_SHORT: TX retry limit for frames whose length is
* less than or equal to the RTS threshold; allowed range: 1..255;
* dot11ShortRetryLimit; u8
* @NL80211_ATTR_WIPHY_RETRY_LONG: TX retry limit for frames whose length is
* greater than the RTS threshold; allowed range: 1..255;
* dot11ShortLongLimit; u8
* @NL80211_ATTR_WIPHY_FRAG_THRESHOLD: fragmentation threshold, i.e., maximum
* length in octets for frames; allowed range: 256..8000, disable
* fragmentation with (u32)-1; dot11FragmentationThreshold; u32
* @NL80211_ATTR_WIPHY_RTS_THRESHOLD: RTS threshold (TX frames with length
* larger than or equal to this use RTS/CTS handshake); allowed range:
* 0..65536, disable with (u32)-1; dot11RTSThreshold; u32
*
* @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
* @NL80211_ATTR_IFNAME: network interface name
@@ -565,6 +579,12 @@ enum nl80211_attrs {
NL80211_ATTR_FREQ_FIXED,
NL80211_ATTR_WIPHY_RETRY_SHORT,
NL80211_ATTR_WIPHY_RETRY_LONG,
NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
NL80211_ATTR_WIPHY_RTS_THRESHOLD,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,