Date: Sun, 30 Dec 2012 19:28:40 +0100 From: rank1seeker@gmail.com To: "Adrian Chadd" <adrian@freebsd.org>, freebsd-wireless@freebsd.org Subject: Re: Atheros chip for FreeBSD Access Point Message-ID: <20121230.182840.135.1@DOMY-PC> In-Reply-To: <CAJ-VmonPQhcKzog=B60Lapk-MmK_qDOxr8WF2H16w0%2BVZwNwow@mail.gmail.com> References: <20121216.143815.770.4@DOMY-PC> <CAJ-Vmon%2BOzgNA0c%2B%2BE7k%2BOJ%2BAhSrXDSR_t18A%2B1rz=nmaCsJsQ@mail.gmail.com> <20121216.185304.164.5@DOMY-PC> <CAJ-VmonPQhcKzog=B60Lapk-MmK_qDOxr8WF2H16w0%2BVZwNwow@mail.gmail.com>
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So, 2 weeks ago I did ... At the end, I decided to dump 5Ghz mode, in favor of a Short-GI in HT/20 mode. So I went for latest 'AR9227/AR9287'. I wondered what is the difference, if they are same. AR9227 => PCI AR9287 => PCIe As I had only 1 free PCI slot, on Supermicro MBO and no PCIe slots, I went for 'AR9227'. AP is running on P4 Prescott, which has only 1 core, so SMP issues aren't problem for me. http://www.wikidevi.com/wiki/Special:Ask, listed few cards for 'AR9227' chip, all PCI. One of them was available in my country. So I've bought 'TP-LINK TL-WN851ND Ver:1.0' Plugged it in, booted, so let's load a module ... # kldload if_ath_pci pulled if_ath, too. Kernel had to say: ----- ath0: <Atheros 9287> mem 0xf1040000-0xf104ffff irq 5 at device 1.0 on pci3 ath0: AR9287 mac 384.2 RF5133 phy 15.15 ----- It shows it as AR9287, which is a PCIe version. 'AR9227' marketing name? :P I've recompiled kernel with: --- device ath device ath_pci device ath_hal options AH_SUPPORT_AR5416 device ath_rate_sample --- Reboot and a ... I achieved with Win7 clients(each having WiFi G cards, old at least 3 years), speed of 3400 Kb/s => 3.32 Mb/s, which would be 26.56 megabits/sec However, sometimes I would get a storm of: -- +ath0: stuck beacon; resetting (bmiss count 4) -- To get rid of it, for me worked to stick AP to channel 8. Now, ... what is "Supports Short-GI in HT/20 mode" and how do I get advantage of it? I'll soon get another 'AR9287' bassed Mini PCIe card for laptop. N support in FreeBSD is coming in 10, not in 9.1 or 9.x? What gives 'device ath_rate_sample'? What does this mean and what is it used for (I didn't compiled with this option): 'The driver also support tdma operation when compiled with options IEEE80211_SUPPORT_TDMA' This is a report at '9.0-RELEASE-p5' for 'TP-LINK TL-WN851ND Ver:1.0' card working in 'hostap' mode. So you are free to put it on a verified list. ;) Thx for info. Domagoj Smolčić
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