Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx> wrote:
> Currently, below fixed rate commands are broken,
> iw wlanx set bitrates legacy-<2.4|5> ht-mcs-<2.4|5> vht-mcs-<2.4|5> \
> <NSS:MCSx>
> iw wlanx set bitrates legacy-<2.4|5> <legacy rate> ht-mcs-<2.4|5> \
> vht-mcs-<2.4|5> <NSS:MCSx>
>
> There are two methods to set fixed rate, both failed,
> - Use vdev fixed rate command
> This command only support one single rate, but it's broken due to
> mac80211 change commit e8e4f5280ddd ("mac80211: reject/clear user
> rate mask if not usable"), which requires user to specify at least
> one legacy rate. So we can't use this command to set ht/vht single
> rate any more.
> - Use peer_assoc command
> This command can update rx capability for multiple rates, it will
> work fine for ht mcs rates, as each supported mcs can be advertised
> in ht_mcs index mask. But this will not work with vht rates because,
> as per the vht mcs capability advertisement, there are only two bits
> to indicate the supported mcs. E.g. only support 0-7, 0-8, 0-9.
>
> So introduced new WMI command: WMI_PEER_PARAM_FIXED_RATE. After peer
> assoc, the peer fixed rate cmd will work for that specific peer.
> Remaining peers will use auto rate. If both vdev fixed rate and peer
> fixed rates are given, peer fixed rate will take effect to peers for
> which this cmd is given. Remaining peers in that vdev, will use vdev
> fixed rate.
>
> Tested HW: QCA9984
> Tested FW: 10.4-3.9.0.2-00035
>
> Signed-off-by: Miaoqing Pan <miaoqing@xxxxxxxxxxxxxx>
> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Patch applied to ath-next branch of ath.git, thanks.
8b97b055dc9d ath10k: fix failure to set multiple fixed rate
--
https://patchwork.kernel.org/patch/10966425/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
