On Thu, 2019-08-01 at 16:07 +0200, Jonas Hahnfeld wrote: > Am Samstag, den 20.07.2019, 13:25 +0300 schrieb Luca Coelho: > > From: Luca Coelho < > > luciano.coelho@xxxxxxxxx > > > > We erroneously added a check for FW API version 41 before sending > > GEO_TX_POWER_LIMIT, but this was already implemented in version 38. > > Additionally, it was cherry-picked to older versions, namely 17, 26 > > and 29, so check for those as well. > > > > Signed-off-by: Luca Coelho < > > luciano.coelho@xxxxxxxxx > > --- > > drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 9 +++++++-- > > 1 file changed, 7 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c > > index a837cf40afde..00c89bcfdf6a 100644 > > --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c > > +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c > > @@ -886,9 +886,14 @@ static bool iwl_mvm_sar_geo_support(struct iwl_mvm *mvm) > > * The GEO_TX_POWER_LIMIT command is not supported on earlier > > * 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. > > + * the first byte of ucode_ver. This was implemented > > + * initially on version 38 and then backported to 36, 29 and > > + * 17. > > */ > > - return IWL_UCODE_SERIAL(mvm->fw->ucode_ver) >= 41; > > + return IWL_UCODE_SERIAL(mvm->fw->ucode_ver) >= 38 || > > + IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 36 || > > + IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 29 || > > + IWL_UCODE_SERIAL(mvm->fw->ucode_ver) == 17; > > } > > > > int iwl_mvm_get_sar_geo_profile(struct iwl_mvm *mvm) > > After pulling iwlwifi-fixes-for-kvalo-2019-07-30, I still get firmware > crashes on my "Intel(R) Dual Band Wireless AC 8260" which uses firmware > version 36. I tried the latest ucode in linux-firmware (36.77d01142.0), > but it seems GEO_TX_POWER_LIMIT is not yet implemented there. > > Could you let me know which firmware version I need for Linux 5.3? Can > there be a check in iwl_mvm_sar_geo_support() that the backported > support is indeed available? We have some issues detecting whether the FW supports this command or not. There is already a bugzilla[1] for this (and a bunch of duplicates), so let's track it there. https://bugzilla.kernel.org/show_bug.cgi?id=204151 -- Cheers, Luca.
