Tested and commented on the issue page. Thank you for the correction.
--
Cheers,
You-Sheng Yang
On 2019-10-08 15:17, Luciano Coelho wrote:
> On Tue, 2019-10-08 at 14:05 +0800, You-Sheng Yang wrote:
>> Follow-up for commit fddbfeece9c7 ("iwlwifi: fw: don't send
>> GEO_TX_POWER_LIMIT command to FW version 36"). There is no
>> GEO_TX_POWER_LIMIT command support for all revisions of FW version
>> 29, either.
>>
>> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204151
>> Signed-off-by: You-Sheng Yang <vicamo.yang@xxxxxxxxxxxxx>
>> ---
>> drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
>> index 32a5e4e5461f..dbba616c19de 100644
>> --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
>> +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
>> @@ -889,14 +889,14 @@ static bool iwl_mvm_sar_geo_support(struct iwl_mvm *mvm)
>> * firmware versions. Unfortunately, we don't have a TLV API
>> * flag to rely on, so rely on the major version which is in
>> * the first byte of ucode_ver. This was implemented
>> - * initially on version 38 and then backported to29 and 17.
>> + * initially on version 38 and then backported to 29 and 17.
>> * The intention was to have it in 36 as well, but not all
>> * 8000 family got this feature enabled. The 8000 family is
>> * the only one using version 36, so skip this version
>> - * entirely.
>> + * entirely. All revisions of -29 fw still don't have
>> + * GEO_TX_POWER_LIMIT supported yet.
>> */
>> return IWL_UCODE_SERIAL(mvm->fw->ucode_ver) >= 38 ||
>> - IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 29 ||
>> IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 17;
>> }
>
> Thanks for the patch!
>
> But I have investigated this (even) further and now I see that 3168
> doesn't have this command, but 7265D does. The latter also uses -29,
> so we can't blindly disable all -29 versions.
>
> Can you try this instead?
>
> diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
> b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
> index 0d2229319261..38d89ee9bd28 100644
> --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
> +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
> @@ -906,8 +906,10 @@ static bool iwl_mvm_sar_geo_support(struct iwl_mvm
> *mvm)
> * entirely.
> */
> return IWL_UCODE_SERIAL(mvm->fw->ucode_ver) >= 38 ||
> - IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 29 ||
> - IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 17;
> + IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 17 ||
> + (IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 29 &&
> + (mvm->trans->hw_rev &
> + CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_7265D);
> }
>
> int iwl_mvm_get_sar_geo_profile(struct iwl_mvm *mvm)
>
>
> --
> Cheers,
> Luca.
>
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