2016-10-31 18:31:19

by Thomas Pedersen

Subject: [PATCH RESEND v2] cfg80211: add bitrate for 20MHz MCS 9

Some drivers (ath10k) report MCS 9 @ 20MHz, which
technically isn't defined. To get more meaningful value
than 0 out of this however, just extrapolate a bitrate
from ratio of MCS 7 and 9 in channels where it is allowed.

Signed-off-by: Thomas Pedersen <[email protected]>
---
v2: add MCS 9 bitrate instead of capping at MCS 8
---
net/wireless/util.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/wireless/util.c b/net/wireless/util.c
index 32060f8..30fc320 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1163,7 +1163,7 @@ static u32 cfg80211_calculate_bitrate_vht(struct rate_info *rate)
58500000,
65000000,
78000000,
- 0,
+ 86500000,
},
{ 13500000,
27000000,
--
2.10.0.297.gf6727b0

2016-11-15 13:34:54

by Johannes Berg

Subject: Re: [PATCH RESEND v2] cfg80211: add bitrate for 20MHz MCS 9

On Mon, 2016-10-31 at 11:28 -0700, Thomas Pedersen wrote:
> Some drivers (ath10k) report MCS 9 @ 20MHz, which
> technically isn't defined. To get more meaningful value
> than 0 out of this however, just extrapolate a bitrate
> from ratio of MCS 7 and 9 in channels where it is allowed.
>
applied.

johannes