Commit d9c85e24 authored by Max Chen's avatar Max Chen Committed by Johannes Berg

cfg80211: Add phyrate conversion support for extended MCS in 60GHz band

The current phyrate conversion does not include extended MCS and provides
incorrect rates. Add a flag for extended MCS in DMG and add corresponding
phyrate table for the correct conversions using base MCS in DMG specs.
Signed-off-by: default avatarMax Chen <mxchen@codeaurora.org>
Link: https://lore.kernel.org/r/1609977050-7089-2-git-send-email-mxchen@codeaurora.org
[reduce data size, make a single WARN]
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent c27aa56a
...@@ -1460,6 +1460,7 @@ int cfg80211_check_station_change(struct wiphy *wiphy, ...@@ -1460,6 +1460,7 @@ int cfg80211_check_station_change(struct wiphy *wiphy,
* @RATE_INFO_FLAGS_DMG: 60GHz MCS * @RATE_INFO_FLAGS_DMG: 60GHz MCS
* @RATE_INFO_FLAGS_HE_MCS: HE MCS information * @RATE_INFO_FLAGS_HE_MCS: HE MCS information
* @RATE_INFO_FLAGS_EDMG: 60GHz MCS in EDMG mode * @RATE_INFO_FLAGS_EDMG: 60GHz MCS in EDMG mode
* @RATE_INFO_FLAGS_EXTENDED_SC_DMG: 60GHz extended SC MCS
*/ */
enum rate_info_flags { enum rate_info_flags {
RATE_INFO_FLAGS_MCS = BIT(0), RATE_INFO_FLAGS_MCS = BIT(0),
...@@ -1468,6 +1469,7 @@ enum rate_info_flags { ...@@ -1468,6 +1469,7 @@ enum rate_info_flags {
RATE_INFO_FLAGS_DMG = BIT(3), RATE_INFO_FLAGS_DMG = BIT(3),
RATE_INFO_FLAGS_HE_MCS = BIT(4), RATE_INFO_FLAGS_HE_MCS = BIT(4),
RATE_INFO_FLAGS_EDMG = BIT(5), RATE_INFO_FLAGS_EDMG = BIT(5),
RATE_INFO_FLAGS_EXTENDED_SC_DMG = BIT(6),
}; };
/** /**
......
...@@ -1188,6 +1188,25 @@ static u32 cfg80211_calculate_bitrate_dmg(struct rate_info *rate) ...@@ -1188,6 +1188,25 @@ static u32 cfg80211_calculate_bitrate_dmg(struct rate_info *rate)
return __mcs2bitrate[rate->mcs]; return __mcs2bitrate[rate->mcs];
} }
static u32 cfg80211_calculate_bitrate_extended_sc_dmg(struct rate_info *rate)
{
static const u32 __mcs2bitrate[] = {
[6 - 6] = 26950, /* MCS 9.1 : 2695.0 mbps */
[7 - 6] = 50050, /* MCS 12.1 */
[8 - 6] = 53900,
[9 - 6] = 57750,
[10 - 6] = 63900,
[11 - 6] = 75075,
[12 - 6] = 80850,
};
/* Extended SC MCS not defined for base MCS below 6 or above 12 */
if (WARN_ON_ONCE(rate->mcs < 6 || rate->mcs > 12))
return 0;
return __mcs2bitrate[rate->mcs - 6];
}
static u32 cfg80211_calculate_bitrate_edmg(struct rate_info *rate) static u32 cfg80211_calculate_bitrate_edmg(struct rate_info *rate)
{ {
static const u32 __mcs2bitrate[] = { static const u32 __mcs2bitrate[] = {
...@@ -1406,6 +1425,8 @@ u32 cfg80211_calculate_bitrate(struct rate_info *rate) ...@@ -1406,6 +1425,8 @@ u32 cfg80211_calculate_bitrate(struct rate_info *rate)
return cfg80211_calculate_bitrate_ht(rate); return cfg80211_calculate_bitrate_ht(rate);
if (rate->flags & RATE_INFO_FLAGS_DMG) if (rate->flags & RATE_INFO_FLAGS_DMG)
return cfg80211_calculate_bitrate_dmg(rate); return cfg80211_calculate_bitrate_dmg(rate);
if (rate->flags & RATE_INFO_FLAGS_EXTENDED_SC_DMG)
return cfg80211_calculate_bitrate_extended_sc_dmg(rate);
if (rate->flags & RATE_INFO_FLAGS_EDMG) if (rate->flags & RATE_INFO_FLAGS_EDMG)
return cfg80211_calculate_bitrate_edmg(rate); return cfg80211_calculate_bitrate_edmg(rate);
if (rate->flags & RATE_INFO_FLAGS_VHT_MCS) if (rate->flags & RATE_INFO_FLAGS_VHT_MCS)
......
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