Received-SPF: pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
MIME-Version: 1.0
References: <CAPGJ1o_KskiCKQ8V-6U0nxWGgXXa4NWHV0EEwo41bMPSj1bbdg@mail.gmail.com>
 <CAPGJ1o9qDYPQF882cw65uysjCmUYi6kJCmL2EUa0AXbwHj59Mg@mail.gmail.com>
 <a236cf47-556d-c515-0093-82dce6e8ad8e@candelatech.com> <CAPGJ1o96QSfoFzFpSPbh_4TwSgAU-1FGhX6P5MVCmfZv_bugHw@mail.gmail.com>
 <79695018-5ac9-d7c8-a386-c6dd3f9ed474@candelatech.com> <CAPGJ1o8k4WoK1cwBBYMge8m6n-Mm5nC7G=ku29iMRrSsJ1AMQw@mail.gmail.com>
 <CAPGJ1o-i8Gy8baAf+MHcuWoF6oHuSiRYwyADCZDkYS8fmeOy8A@mail.gmail.com> <3ed8dd0c-47e0-16a0-082d-c60f1dabdce7@candelatech.com>
In-Reply-To: <3ed8dd0c-47e0-16a0-082d-c60f1dabdce7@candelatech.com>
From:   Sam Samy <to.swami1@gmail.com>
Date:   Mon, 13 May 2019 13:14:36 -0700
Message-ID: <CAPGJ1o8NUXw2G8hxHkHHwVhqqOGN8atHeaWFZjm-Vhw6ZM8bBw@mail.gmail.com>
Subject: Re: ath10k 5Ghz RSSI low
To:     Ben Greear <greearb@candelatech.com>
Cc:     linux-wireless@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

>I think you should write to the openwrt mailing list and/or its bug tracker
>and see if they can help.

Ok. Thanks Ben. will do. Just curious. I am not able to get the reg.
domain codes in TPC by googling. Do you know where I can get those?
What is the reg. domains 0x20 and 0x58 value points to?

Thanks

On Mon, May 13, 2019 at 11:17 AM Ben Greear <greearb@candelatech.com> wrote:
>
> On 5/13/19 11:10 AM, Sam Samy wrote:
> > hi Ben,
> >
> >    I also looked at the TPC on the stock firmware on the AP. There is a
> > difference.
>
> I think you should write to the openwrt mailing list and/or its bug tracker
> and see if they can help.
>
> Thanks,
> Ben
>
> >
> > Here is the snippet from stock firmware:
> >
> > TPC Config for channel 5765 mode 10
> > **************************************************
> > CTL           = 0x10   Reg. Domain           = 20
> > Antenna Gain  =  0     Reg. Max Antenna Gain = 12
> > Power Limit   = 63     Reg. Max Power        = 60
> > Num tx chains =  2    Num  Supported Rates  = 109
> > **************************************************
> > **************** CDD  POWER TABLE ****************
> > **************************************************
> >
> > Where as in openwrt it is:
> >
> > *************************************
> > TPC config for channel 5765 mode 10
> > *************************************
> > CTL        =  0x10 Reg. Domain        = 58
> > Antenna Gain    =  0 Reg. Max Antenna Gain    =   0
> > Power Limit    = 60 Reg. Max Power        = 30
> > Num tx chains    =  2 Num supported rates    = 109
> > ********************************
> >
> >
> > So looks like reg ,domain is different even though both are US.
> > (Although I didnt set anything on stock firmware. The countrycode from
> > iwpriv get_countrycode says its 841.)
> >
> > Also, the antenna gain seems different between stock and openwrt firmware..
> >
> >
> > How to change the reg. domain like in stock firmware in openwrt
> > although I set to US in the uci.
> >
> > root@OpenWrt:/sys# uci show | grep country
> > uhttpd.defaults.country='ZZ'
> > wireless.radio0.country='US'
> > wireless.radio1.country='US'
> > wireless.radio2.country='US'
> > root@OpenWrt:/sys#
> >
> > Thanks
> >
> >
> > On Mon, May 13, 2019 at 10:36 AM Sam Samy <to.swami1@gmail.com> wrote:
> >>
> >>> Probably it is a board-file and/or calibration data issue then.
> >>>
> >>> The debugfs 'ath10k/tpc_stats' file may show very low values?
> >>
> >> I am not sure if the values are right. Here is one of the 5Ghz radio stats:
> >>
> >> root@OpenWrt:/sys# cat ./kernel/debug/ieee80211/phy0/ath10k/tpc_stats
> >>
> >> *************************************
> >> TPC config for channel 5320 mode 10
> >> *************************************
> >> CTL        =  0x10 Reg. Domain        = 58
> >> Antenna Gain    =  0 Reg. Max Antenna Gain    =   0
> >> Power Limit    = 46 Reg. Max Power        = 46
> >> Num tx chains    =  2 Num supported rates    = 129
> >> ********************************
> >> ******************* CDD POWER TABLE ****************
> >> ********************************
> >> No.  Preamble Rate_code tpc_value0 tpc_value1 tpc_value2 tpc_value3
> >>         0 CCK 0x40        0        0
> >>         1 CCK 0x41        0        0
> >>         2 CCK 0x42        0        0
> >>         3 CCK 0x43        0        0
> >>         4 OFDM 0x 0       36       34
> >>         5 OFDM 0x 1       38       34
> >>         6 OFDM 0x 2       38       34
> >>         7 OFDM 0x 3       38       34
> >>         8 OFDM 0x 4       34       34
> >>         9 OFDM 0x 5       38       34
> >>        10 OFDM 0x 6       38       34
> >>        11 OFDM 0x 7       38       34
> >>        12 HT20 0x80       38       34
> >>        13 HT20 0x81       38       34
> >>        14 HT20 0x82       38       34
> >>        15 HT20 0x83       38       34
> >>        16 HT20 0x84       38       34
> >>        17 HT20 0x85       36       34
> >>        18 HT20 0x86       34       34
> >>        19 HT20 0x87       32       32
> >>        20 HT20 0x90       38       38
> >>        21 HT20 0x91       38       38
> >>        22 HT20 0x92       38       38
> >>        23 HT20 0x93       38       38
> >>        24 HT20 0x94       38       38
> >>        25 HT20 0x95       36       36
> >>        26 HT20 0x96       34       34
> >>        27 HT20 0x97       32       32
> >>        28 HT40 0x80       37       34
> >>        29 HT40 0x81       37       34
> >>        30 HT40 0x82       37       34
> >>        31 HT40 0x83       37       34
> >>        32 HT40 0x84       37       34
> >>        33 HT40 0x85       35       34
> >>        34 HT40 0x86       33       33
> >>        35 HT40 0x87       31       31
> >>        36 HT40 0x90       37       37
> >>        37 HT40 0x91       37       37
> >>        38 HT40 0x92       37       37
> >>        39 HT40 0x93       37       37
> >>        40 HT40 0x94       37       37
> >>        41 HT40 0x95       35       35
> >>        42 HT40 0x96       33       33
> >>        43 HT40 0x97       31       31
> >>        44 VHT20 0xc0       38       34
> >>        45 VHT20 0xc1       38       34
> >>        46 VHT20 0xc2       38       34
> >>        47 VHT20 0xc3       38       34
> >>        48 VHT20 0xc4       38       34
> >>        49 VHT20 0xc5       36       34
> >>        50 VHT20 0xc6       34       34
> >>        51 VHT20 0xc7       32       32
> >>        52 VHT20 0xc8       31       31
> >>        53 VHT20 0xc9       30       30
> >>        54 VHT20 0xd0       38       38
> >>        55 VHT20 0xd1       38       38
> >>        56 VHT20 0xd2       38       38
> >>        57 VHT20 0xd3       38       38
> >>        58 VHT20 0xd4       38       38
> >>        59 VHT20 0xd5       36       36
> >>        60 VHT20 0xd6       34       34
> >>        61 VHT20 0xd7       32       32
> >>        62 VHT20 0xd8       31       31
> >>        63 VHT20 0xd9       30       30
> >>        64 VHT40 0xc0       37       34
> >>        65 VHT40 0xc1       37       34
> >>        66 VHT40 0xc2       37       34
> >>        67 VHT40 0xc3       37       34
> >>        68 VHT40 0xc4       37       34
> >>        69 VHT40 0xc5       35       34
> >>        70 VHT40 0xc6       33       33
> >>        71 VHT40 0xc7       31       31
> >>        72 VHT40 0xc8       30       30
> >>        73 VHT40 0xc9       29       29
> >>        74 VHT40 0xd0       37       37
> >>        75 VHT40 0xd1       37       37
> >>        76 VHT40 0xd2       37       37
> >>        77 VHT40 0xd3       37       37
> >>        78 VHT40 0xd4       37       37
> >>        79 VHT40 0xd5       35       35
> >>        80 VHT40 0xd6       33       33
> >>        81 VHT40 0xd7       31       31
> >>        82 VHT40 0xd8       30       30
> >>        83 VHT40 0xd9       29       29
> >>        84 VHT80 0xc0       36       34
> >>        85 VHT80 0xc1       36       34
> >>        86 VHT80 0xc2       36       34
> >>        87 VHT80 0xc3       36       34
> >>        88 VHT80 0xc4       36       34
> >>        89 VHT80 0xc5       34       34
> >>        90 VHT80 0xc6       32       32
> >>        91 VHT80 0xc7       30       30
> >>        92 VHT80 0xc8       29       29
> >>        93 VHT80 0xc9       28       28
> >>        94 VHT80 0xd0       36       36
> >>        95 VHT80 0xd1       36       36
> >>        96 VHT80 0xd2       36       36
> >>        97 VHT80 0xd3       36       36
> >>        98 VHT80 0xd4       36       36
> >>        99 VHT80 0xd5       34       34
> >>       100 VHT80 0xd6       32       32
> >>       101 VHT80 0xd7       30       30
> >>       102 VHT80 0xd8       29       29
> >>       103 VHT80 0xd9       28       28
> >>       104 HTCUP 0x40       36       36
> >>       105 HTCUP 0x 0       36       34
> >>       106 HTCUP 0x40       36       36
> >>       107 HTCUP 0x 0       36       34
> >>       108 HTCUP 0x 0       36       34
> >>       109 HTCUP 0x7a       34       34
> >>       110 HTCUP 0x8a       32       32
> >>       111 HTCUP 0x a       30       30
> >>       112 HTCUP 0xee       27       27
> >>       113 HTCUP 0xa6       26       26
> >>       114 HTCUP 0x90       36       36
> >>       115 HTCUP 0x1d       36       36
> >>       116 HTCUP 0x80       36       34
> >>       117 HTCUP 0x41       36       36
> >>       118 HTCUP 0xd9       36       36
> >>       119 HTCUP 0x64       34       34
> >>       120 HTCUP 0xf9       32       32
> >>       121 HTCUP 0x 0       30       30
> >>       122 HTCUP 0x 0       27       27
> >>       123 HTCUP 0x 0       26       26
> >>       124 HTCUP 0x64        0        0
> >>       125 HTCUP 0x 0       37       34
> >>       126 HTCUP 0x31        0        0
> >>       127 HTCUP 0x 4       37       34
> >>       128 HTCUP 0x 0       38       34
> >> ***********************************
> >> ********************************
> >> ******************* STBC POWER TABLE ****************
> >> ********************************
> >> No.  Preamble Rate_code tpc_value0 tpc_value1 tpc_value2 tpc_value3
> >>         0 CCK 0x40        0        0
> >>         1 CCK 0x41        0        0
> >>         2 CCK 0x42        0        0
> >>         3 CCK 0x43        0        0
> >>         4 OFDM 0x 0       36       36
> >>         5 OFDM 0x 1       38       38
> >>         6 OFDM 0x 2       38       38
> >>         7 OFDM 0x 3       38       38
> >>         8 OFDM 0x 4       34       34
> >>         9 OFDM 0x 5       38       38
> >>        10 OFDM 0x 6       38       38
> >>        11 OFDM 0x 7       38       38
> >>        12 HT20 0x80       38       38
> >>        13 HT20 0x81       38       38
> >>        14 HT20 0x82       38       38
> >>        15 HT20 0x83       38       38
> >>        16 HT20 0x84       38       38
> >>        17 HT20 0x85       36       36
> >>        18 HT20 0x86       34       34
> >>        19 HT20 0x87       32       32
> >>        20 HT20 0x90       38       38
> >>        21 HT20 0x91       38       38
> >>        22 HT20 0x92       38       38
> >>        23 HT20 0x93       38       38
> >>        24 HT20 0x94       38       38
> >>        25 HT20 0x95       36       36
> >>        26 HT20 0x96       34       34
> >>        27 HT20 0x97       32       32
> >>        28 HT40 0x80       37       37
> >>        29 HT40 0x81       37       37
> >>        30 HT40 0x82       37       37
> >>        31 HT40 0x83       37       37
> >>        32 HT40 0x84       37       37
> >>        33 HT40 0x85       35       35
> >>        34 HT40 0x86       33       33
> >>        35 HT40 0x87       31       31
> >>        36 HT40 0x90       37       37
> >>        37 HT40 0x91       37       37
> >>        38 HT40 0x92       37       37
> >>        39 HT40 0x93       37       37
> >>        40 HT40 0x94       37       37
> >>        41 HT40 0x95       35       35
> >>        42 HT40 0x96       33       33
> >>        43 HT40 0x97       31       31
> >>        44 VHT20 0xc0       38       38
> >>        45 VHT20 0xc1       38       38
> >>        46 VHT20 0xc2       38       38
> >>        47 VHT20 0xc3       38       38
> >>        48 VHT20 0xc4       38       38
> >>        49 VHT20 0xc5       36       36
> >>        50 VHT20 0xc6       34       34
> >>        51 VHT20 0xc7       32       32
> >>        52 VHT20 0xc8       31       31
> >>        53 VHT20 0xc9       30       30
> >>        54 VHT20 0xd0       38       38
> >>        55 VHT20 0xd1       38       38
> >>        56 VHT20 0xd2       38       38
> >>        57 VHT20 0xd3       38       38
> >>        58 VHT20 0xd4       38       38
> >>        59 VHT20 0xd5       36       36
> >>        60 VHT20 0xd6       34       34
> >>        61 VHT20 0xd7       32       32
> >>        62 VHT20 0xd8       31       31
> >>        63 VHT20 0xd9       30       30
> >>        64 VHT40 0xc0       37       37
> >>        65 VHT40 0xc1       37       37
> >>        66 VHT40 0xc2       37       37
> >>        67 VHT40 0xc3       37       37
> >>        68 VHT40 0xc4       37       37
> >>        69 VHT40 0xc5       35       35
> >>        70 VHT40 0xc6       33       33
> >>        71 VHT40 0xc7       31       31
> >>        72 VHT40 0xc8       30       30
> >>        73 VHT40 0xc9       29       29
> >>        74 VHT40 0xd0       37       37
> >>        75 VHT40 0xd1       37       37
> >>        76 VHT40 0xd2       37       37
> >>        77 VHT40 0xd3       37       37
> >>        78 VHT40 0xd4       37       37
> >>        79 VHT40 0xd5       35       35
> >>        80 VHT40 0xd6       33       33
> >>        81 VHT40 0xd7       31       31
> >>        82 VHT40 0xd8       30       30
> >>        83 VHT40 0xd9       29       29
> >>        84 VHT80 0xc0       36       36
> >>        85 VHT80 0xc1       36       36
> >>        86 VHT80 0xc2       36       36
> >>        87 VHT80 0xc3       36       36
> >>        88 VHT80 0xc4       36       36
> >>        89 VHT80 0xc5       34       34
> >>        90 VHT80 0xc6       32       32
> >>        91 VHT80 0xc7       30       30
> >>        92 VHT80 0xc8       29       29
> >>        93 VHT80 0xc9       28       28
> >>        94 VHT80 0xd0       36       36
> >>        95 VHT80 0xd1       36       36
> >>        96 VHT80 0xd2       36       36
> >>        97 VHT80 0xd3       36       36
> >>        98 VHT80 0xd4       36       36
> >>        99 VHT80 0xd5       34       34
> >>       100 VHT80 0xd6       32       32
> >>       101 VHT80 0xd7       30       30
> >>       102 VHT80 0xd8       29       29
> >>       103 VHT80 0xd9       28       28
> >>       104 HTCUP 0x40       36       36
> >>       105 HTCUP 0x 0       36       36
> >>       106 HTCUP 0x40       36       36
> >>       107 HTCUP 0x 0       36       36
> >>       108 HTCUP 0x 0       36       36
> >>       109 HTCUP 0x7a       34       34
> >>       110 HTCUP 0x8a       32       32
> >>       111 HTCUP 0x a       30       30
> >>       112 HTCUP 0xee       27       27
> >>       113 HTCUP 0xa6       26       26
> >>       114 HTCUP 0x90       36       36
> >>       115 HTCUP 0x1d       36       36
> >>       116 HTCUP 0x80       36       36
> >>       117 HTCUP 0x41       36       36
> >>       118 HTCUP 0xd9       36       36
> >>       119 HTCUP 0x64       34       34
> >>       120 HTCUP 0xf9       32       32
> >>       121 HTCUP 0x 0       30       30
> >>       122 HTCUP 0x 0       27       27
> >>       123 HTCUP 0x 0       26       26
> >>       124 HTCUP 0x64        0        0
> >>       125 HTCUP 0x 0       37       37
> >>       126 HTCUP 0x31        0        0
> >>       127 HTCUP 0x 4       37       37
> >>       128 HTCUP 0x 0       38       38
> >> ***********************************
> >> TXBF not supported
> >> ***************************
> >> root@OpenWrt:/sys#
> >>
> >>
> >> Thanks
> >>
> >> On Mon, May 13, 2019 at 10:27 AM Ben Greear <greearb@candelatech.com> wrote:
> >>>
> >>> On 5/13/19 10:26 AM, Sam Samy wrote:
> >>>> hi Ben,
> >>>>
> >>>>> Hello, what firmware are you using (ath10k-ct, or QCA?)  If using -ct firmware,
> >>>>> please try QCA firmware and let me know if that fixes the problem.
> >>>>>
> >>>>     I tried both. Both have the same problem. I tried various versions
> >>>> of the both(-ct and QCA) firmware as well. All have the same problem.
> >>>
> >>> Probably it is a board-file and/or calibration data issue then.
> >>>
> >>> The debugfs 'ath10k/tpc_stats' file may show very low values?
> >>>
> >>> Thanks,
> >>> Ben
> >>>
> >>>>
> >>>> Thanks
> >>>>
> >>>> On Mon, May 13, 2019 at 10:00 AM Ben Greear <greearb@candelatech.com> wrote:
> >>>>>
> >>>>> On 5/13/19 9:56 AM, Sam Samy wrote:
> >>>>>>     Hi,
> >>>>>>     I installed master branch openwrt onto Asus MAP-AC2200 AP. It has tri
> >>>>>> band. Its based on IPQ4019 DK04 QCA reference platform. 2 radios
> >>>>>> (2Ghz/5Ghz) on AHB bus and one 5GHZ on PCIe bus. Its generally working
> >>>>>> fine except one problem in 5Ghz. On both the 5Ghz radios the RSSI is
> >>>>>> pretty low on any channel I put it in.  In one feet range I see -60dB
> >>>>>> RSSI, where as the stock firmware that came with the AP gives an RSSI
> >>>>>> of -36dB at one foot distance.The downstream transmit rates are MCS8/9
> >>>>>> for most part. The 2Ghz is working fine. Its using the cal data from
> >>>>>> the flash that came with the AP.
> >>>>>>
> >>>>>>     Can you please suggest anyway to debug this or improve the RSSI?
> >>>>>>
> >>>>>>     Thanks you!
> >>>>>>
> >>>>>
> >>>>> Hello, what firmware are you using (ath10k-ct, or QCA?)  If using -ct firmware,
> >>>>> please try QCA firmware and let me know if that fixes the problem.
> >>>>>
> >>>>> Thanks,
> >>>>> Ben
> >>>>>
> >>>>> --
> >>>>> Ben Greear <greearb@candelatech.com>
> >>>>> Candela Technologies Inc  http://www.candelatech.com
> >>>>>
> >>>>
> >>>
> >>>
> >>> --
> >>> Ben Greear <greearb@candelatech.com>
> >>> Candela Technologies Inc  http://www.candelatech.com
> >>>
> >
>
>
> --
> Ben Greear <greearb@candelatech.com>
> Candela Technologies Inc  http://www.candelatech.com
>