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Re: [PATCH 15/15] wlcore: configure the remote rates with our own rates

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On Tue, Nov 20, 2012 at 10:18 AM, Luciano Coelho <coelho@xxxxxx> wrote:
> On Mon, 2012-11-19 at 18:39 +0200, Eliad Peller wrote:
>> With the new connection flow, start_sta is called before
>> the remote rates where updated. Use our own supported rates
>> instead to make sure we don't disable any potential rate
>> (the rate policies will be updated later, but there is
>> currently no way to update the remote rates)
>>
>> Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
>> ---
>>  drivers/net/wireless/ti/wlcore/cmd.c |    7 ++++++-
>>  1 files changed, 6 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
>> index 4c2ed25..ec7e8b3 100644
>> --- a/drivers/net/wireless/ti/wlcore/cmd.c
>> +++ b/drivers/net/wireless/ti/wlcore/cmd.c
>> @@ -479,7 +479,12 @@ int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
>>       }
>>       cmd->sta.hlid = wlvif->sta.hlid;
>>       cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif);
>> -     cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set);
>> +     /*
>> +      * We don't have the correct remote rates in this stage, and there
>> +      * is no way to update them later, so use our supported rates instead.
>> +      * The fw will take the configured rate policies into account anyway.
>> +      */
>> +     cmd->sta.remote_rates = cpu_to_le32(supported_rates);
>
> Why do we even have to pass this value, then? Any hidden reason that we
> may be overlooking?
>
the fw uses an intersection our local_supported_rates, the
remote_rates and the rate_policy in order to determine the rates.
i'm not too familiar with its whole logic, though.

Eliad.
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