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cfg80211: change bandwidth reporting to explicit field

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For some reason, we made the bandwidth separate flags, which
is rather confusing - a single rate cannot have different
bandwidths at the same time.

Change this to no longer be flags but use a separate field
for the bandwidth ('bw') instead.

While at it, add support for 5 and 10 MHz rates - these are
reported as regular legacy rates with their real bitrate,
but tagged as 5/10 now to make it easier to distinguish them.

In the nl80211 API, the flags are preserved, but the code
now can also clearly only set a single one of the flags.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2015-01-15 16:14:02 +01:00
commit b51f3beecf
8 changed files with 125 additions and 50 deletions
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8
include/uapi/linux/nl80211.h
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@ -2281,6 +2281,12 @@ struct nl80211_sta_flag_update {
* @NL80211_RATE_INFO_80P80_MHZ_WIDTH: unused - 80+80 is treated the
* same as 160 for purposes of the bitrates
* @NL80211_RATE_INFO_160_MHZ_WIDTH: 160 MHz VHT rate
* @NL80211_RATE_INFO_10_MHZ_WIDTH: 10 MHz width - note that this is
* a legacy rate and will be reported as the actual bitrate, i.e.
* half the base (20 MHz) rate
* @NL80211_RATE_INFO_5_MHZ_WIDTH: 5 MHz width - note that this is
* a legacy rate and will be reported as the actual bitrate, i.e.
* a quarter of the base (20 MHz) rate
* @__NL80211_RATE_INFO_AFTER_LAST: internal use
*/
enum nl80211_rate_info {
@ -2295,6 +2301,8 @@ enum nl80211_rate_info {
NL80211_RATE_INFO_80_MHZ_WIDTH,
NL80211_RATE_INFO_80P80_MHZ_WIDTH,
NL80211_RATE_INFO_160_MHZ_WIDTH,
NL80211_RATE_INFO_10_MHZ_WIDTH,
NL80211_RATE_INFO_5_MHZ_WIDTH,
/* keep last */
__NL80211_RATE_INFO_AFTER_LAST,