From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail29.static.mailgun.info ([104.130.122.29]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k6qGu-0006Ip-Rg for ath10k@lists.infradead.org; Sat, 15 Aug 2020 07:06:37 +0000 MIME-Version: 1.0 Subject: Re: [PATCH] ath10k: correct the array index from mcs index for HT mode for QCA6174 From: Kalle Valo In-Reply-To: <1597392294-13124-1-git-send-email-wgong@codeaurora.org> References: <1597392294-13124-1-git-send-email-wgong@codeaurora.org> Message-Id: <20200815070628.9FE80C433C6@smtp.codeaurora.org> Date: Sat, 15 Aug 2020 07:06:28 +0000 (UTC) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Wen Gong Cc: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org Wen Gong wrote: > The mcs index of HT mode is 0 to 31, please refer http://mcsindex.com/. > Its spatial stream(Nss) number is from 1 to 4, mcs index is 0~7 for > Nss=1, 8~15 for Nss=2, 16~23 for Nss=3 and 24~31 is for Nss=4. > > The mcs is reported from firmware in wmi_tlv_peer_stats_info of > event WMI_TLV_PEER_STATS_INFO_EVENTID, its range is from 0~15 for > QCA6174 SDIO and PCIe. It is for both Nss=1 and Nss=2, and it has 2 > rate table supported_ht_mcs_rate_nss1 and supported_ht_mcs_rate_nss2 > in ath10k, they are for Nss=1 and Nss=2, each table has 8 rates. > > It need to find the matched row number with the mcs index, for example, > mcs index is 2, it is <=7, so it is Nss=1, and match row 2 in table of > Nss=1. If mcs index is 12, it is >= 8 and <= 15, so it is Nss=2, it > match row 4(12-8) in table of Nss=2. If mcs index is >=16, it is for > Nss=3/4, it need to add rate table, so it is not support in current > ath10k. > > This patch is to find the row number in rate table of Nss=1 or Nss=2 > with the mcs index reported from firmware. > > This patch only effect the chips which supports_peer_stats_info of its > hw_params is true, it is true only for QCA6174 currently. > > Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00048 > Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1 > > Signed-off-by: Wen Gong > Signed-off-by: Kalle Valo Patch applied to ath-next branch of ath.git, thanks. db04b755edaa ath10k: correct the array index from mcs index for HT mode for QCA6174 -- https://patchwork.kernel.org/patch/11713809/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k