From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail2.candelatech.com ([208.74.158.173]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fzOiC-0008Or-Bb for ath10k@lists.infradead.org; Mon, 10 Sep 2018 16:07:05 +0000 Subject: Re: Multiple simultaneous channels on QCA9882 References: From: Ben Greear Message-ID: Date: Mon, 10 Sep 2018 09:06:36 -0700 MIME-Version: 1.0 In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Fraser Cadger , ath10k@lists.infradead.org On 09/10/2018 07:37 AM, Fraser Cadger wrote: > Hi, > > I am using a device based on the Atheros QCA9882 chipset. > > I would like to make use of the simultaneous dual-band functionality > that the device provides. The goal is to have to interfaces with one > acting as > an Access Point (wlan0) and the other acting as a client of another AP > (wlan1). Ideally, both of these interfaces should be operating on > different channels. These radios can support both bands, but at any given time, they can be on only a single channel. You need multiple radios to run on multiple channels. Thanks, Ben > > As I have understood it, Atheros/Qualcomm market the QCA9882 as being > capable of both dual-band and concurrent operation: > https://www.qualcomm.com/news/releases/2012/02/23/qualcomm-atheros-launches-80211ac-product-ecosystem-provide-end-end-gigabit > > I am using v4.1 of the Linux kernel. > > Having experienced some difficulties using hostapd and wpa_supplicant, > I checked the device capabilities using iw. If I am interpreting the > output below correctly, it is only possible to use 1 channel on both > interfaces: > > valid interface combinations: > * #{ managed, P2P-client } <= 36, #{ P2P-GO } <= 3, > #{ AP } <= 7, #{ IBSS } <= 1, > total <= 36, #channels <= 1, STA/AP BI must match > > > As I understand it, #channels <=1 indicates that only 1 channel may be > used at a particular time by all interfaces. > > I am wondering if this is a limitation of the driver, or if there has > been a misunderstanding in the capabilities of the hardware. > > Does anyone have experience with this? > > Regards, > > Fraser > > _______________________________________________ > ath10k mailing list > ath10k@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/ath10k > -- Ben Greear Candela Technologies Inc http://www.candelatech.com _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k