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[209.132.180.67]) by mx.google.com with ESMTP id t10si12745328plr.177.2019.05.14.00.54.54; Tue, 14 May 2019 00:55:09 -0700 (PDT) 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; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=s4KMCd86; spf=pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726238AbfENHyX (ORCPT + 99 others); Tue, 14 May 2019 03:54:23 -0400 Received: from mail-pl1-f194.google.com ([209.85.214.194]:39330 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726151AbfENHyX (ORCPT ); Tue, 14 May 2019 03:54:23 -0400 Received: by mail-pl1-f194.google.com with SMTP id g9so7842191plm.6 for ; Tue, 14 May 2019 00:54:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=JoeIZiUsBu0HvFVG0nWmxsVv7tok+Gu9s0PWKDjGTL8=; b=s4KMCd86WufV+k7UDIr/QKsO148PB6wIc3uYyEVv6SDyDHmvRTCPmJKIZBRxVqDXcy ZH2JbLOoNQgge7AKwnEQdDZF1dKsvoANpRDTYnAALjbiIUNtRWoGIA+k2PCrcCYOG5Ok hv547UaPAabneOQbwHg1vIiWksGYnLVRpcfwxAvWKaFHkPIxGV9Dc1KKn4LEwiJKWt43 kHKmzE1iQr7+swUfd6S0gR8unSrLPERwgFn1b+M30to+YxlZZPzBrMYRhWZS/gnuWRVR ya+wj51lkAb+ecpu+qswGe8nS257h6hoFjLxwH6tWTTtfJ1CMqXbUfx2iW1Ue1UAtsPx mDjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=JoeIZiUsBu0HvFVG0nWmxsVv7tok+Gu9s0PWKDjGTL8=; b=pFwAXp1M94XpHfYpHDXTb+pb+uazNnDRxOue3CedcBm0vUvrUCo47yc9MuRX45pvOG 0JVHBkstyc/EPhp9ByJ4SjzrGORxSr0pzamQyQafLVSda4Ek8IDFtVQ/0GpOD0bumA9K Uy1UvBmrYYLps053OMYBppTh3UV/cxQYyKKYzrSAPt4OnKHSeQIm5KQu/pqP9WsXUWyS Qx6tENNOmW4vsHtPlnuh2KbZAr4AvJJSLtDeeFslqtZ9xbrNYi5YIPUFy9z+w5a2m463 i2b9g5nf0iCbO7CyOln03wTer5RbtDNzMyTyocYkZezLTJusSsXg65AhZL84VbzQgWls hiCQ== X-Gm-Message-State: APjAAAVyXkiw6FJ/pN0ZheKjOzu9TYK5DsD2G2bArjwUKB4VvDUhMisr M4dcl0xSmCfKDFKXvrWSREXvUGU8KRGang1GVw== X-Received: by 2002:a17:902:322:: with SMTP id 31mr23797534pld.204.1557820462418; Tue, 14 May 2019 00:54:22 -0700 (PDT) MIME-Version: 1.0 References: <79695018-5ac9-d7c8-a386-c6dd3f9ed474@candelatech.com> <3ed8dd0c-47e0-16a0-082d-c60f1dabdce7@candelatech.com> In-Reply-To: From: Sam Samy Date: Tue, 14 May 2019 00:54:10 -0700 Message-ID: Subject: Re: ath10k 5Ghz RSSI low To: Ben Greear Cc: linux-wireless@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org hi Ben: Looks like ./sys/kernel/debug/ieee80211/phy2/ath10k/cal_data is junk for both the 5Ghz radios even though the pre-cal-pci-0000:01:00.0.bin/pre-cal-ahb-a800000.wifi.bin is correct. The 2Ghz cal_data seem to be correct and match the pre-cal-ahb-a000000.wifi.bin. Openwrt seem to do the right thing in setting the countrycode. I am clueless. Any pointers would help. Thanks On Mon, May 13, 2019 at 1:14 PM Sam Samy wrote: > > >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 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 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 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 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 > > >>>>> Candela Technologies Inc http://www.candelatech.com > > >>>>> > > >>>> > > >>> > > >>> > > >>> -- > > >>> Ben Greear > > >>> Candela Technologies Inc http://www.candelatech.com > > >>> > > > > > > > > > -- > > Ben Greear > > Candela Technologies Inc http://www.candelatech.com > >