Date: Thu, 17 Jul 2014 12:30:53 -0700 From: Adrian Chadd <adrian@freebsd.org> To: John Hay <jhay@meraka.org.za> Cc: "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org>, "freebsd-embedded@freebsd.org" <freebsd-embedded@freebsd.org>, Ian Lepore <ian@freebsd.org> Subject: Re: CAMBRIA and more than one atheros card Message-ID: <CAJ-VmomFS93MKU96dcKzO6-ZBzSyNC2W%2Bc7y3Tq4GSjPMGJ9=g@mail.gmail.com> In-Reply-To: <20140717192433.GA35445@zibbi.meraka.csir.co.za> References: <20140714190946.GA49930@zibbi.meraka.csir.co.za> <20140714191416.GB49930@zibbi.meraka.csir.co.za> <CAJ-Vmonfe7pOCJzCXbFU6wxmBssRucbq=Q3_Dbiuic3mNatcrw@mail.gmail.com> <20140714194932.GA51947@zibbi.meraka.csir.co.za> <CAJ-VmokoRVb0_4PPy3KoogeWD8C5_R6BWrLoPsWHM8EsshtzKw@mail.gmail.com> <20140714200015.GA54311@zibbi.meraka.csir.co.za> <CAJ-Vmo=uU0OAq%2BXL8LCPYyhOFXuzKkG%2BVvJ3CqvqMrj1ydXChQ@mail.gmail.com> <20140714203707.GB54311@zibbi.meraka.csir.co.za> <20140717103430.GA88108@zibbi.meraka.csir.co.za> <CAJ-VmompU4RFqpU==DqzxsW%2BggfHKFqEVLL7FUVa_%2BmTUur64w@mail.gmail.com> <20140717192433.GA35445@zibbi.meraka.csir.co.za>
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okay, I think that needs to be fixed first. I can't debug it otherwise. :) -a On 17 July 2014 12:24, John Hay <jhay@meraka.org.za> wrote: > On Thu, Jul 17, 2014 at 12:17:19PM -0700, Adrian Chadd wrote: >> I've seen some weird cases in the past where there's just no >> interrupts making out after boot. I don't know why. >> >> Chances are that's what you're seeing - the frame is going out but >> there's no interrupts. >> >> Check vmstat -ia ; see if ath0 is generating interrupts. > > I don't think vmstat -ia work properly. On a boot where ath works, this > is what I see: > > tst-11-arm:~ # vmstat -ia > interrupt total rate > irq0: npe1 0 0 > irq2: npe0 0 0 > irq3: ixpqmgr0 0 0 > irq4: ixpqmgr0 0 0 > irq5: ixpclk0 0 0 > Total 3520443 172 > > Ath0-2 do not pitch up and npe0 stays 0 even though packets have been > sent and received on it. > > John > >> >> >> >> -a >> >> >> On 17 July 2014 03:34, John Hay <jhay@meraka.org.za> wrote: >> > On Mon, Jul 14, 2014 at 10:37:07PM +0200, John Hay wrote: >> >> On Mon, Jul 14, 2014 at 01:02:03PM -0700, Adrian Chadd wrote: >> >> > >> >> > Ah, you're not even using it in 11n mode. Ok. >> >> > >> >> > Well, that's 72 mbufs allocated, and up to 200 more being allocated >> >> > during transmit. Then there's the handful of pages being used for DMA >> >> > descriptors. So yeah, over time that may become a problem. >> >> > >> >> > Try doubling the number of bounce buffers available and see what happens. >> >> >> >> The first boot looks good, all 3 aths came up. Bounce buffers just >> >> after login: >> >> >> >> tst-11-arm:~ # sysctl hw.busdma >> >> hw.busdma.total_bpages: 128 >> >> hw.busdma.zone0.total_bpages: 128 >> >> hw.busdma.zone0.free_bpages: 128 >> >> hw.busdma.zone0.reserved_bpages: 0 >> >> hw.busdma.zone0.active_bpages: 0 >> >> hw.busdma.zone0.total_bounced: 0 >> >> hw.busdma.zone0.total_deferred: 0 >> >> hw.busdma.zone0.lowaddr: 0x4000fff >> >> hw.busdma.zone0.alignment: 4096 >> > ... >> >> Great! At last it seems like we are making progress. I'll leave it >> >> till the morning and then do a few reboots and then some traffic. >> >> >> >> One question, should the active bounce pages keep growing or stabilize >> >> somewhere? How do I know if I have to few or if there is a leak? >> >> >> >> Thanks Adrian for your help. >> > >> > I still ran out sometimes during a reboot, so I upped it to 512 and added >> > a sysctl to show the max that active_bpages has been. Sometimes just >> > after a reboot active_bpages is low and other times higher, I have seen >> > 140. A few times during a reboot I see timeouts, which only a reboot >> > seem to recover from. Can it be a left over config from the previous boot >> > that does not get cleaned out? Or maybe traffic being received while the >> > config is happening? >> > >> > Here is an example during the boot: >> > >> > #################### >> > ... >> > ath0: <Atheros 9220> irq 28 at device 1.0 on pci0 >> > alloc_bounce_pages: numpages 63 >> > [ath] enabling AN_TOP2_FIXUP >> > alloc_bounce_pages: numpages 63 >> > alloc_bounce_pages: numpages 63 >> > alloc_bounce_pages: numpages 63 >> > alloc_bounce_pages: numpages 63 >> > alloc_bounce_pages: numpages 63 >> > alloc_bounce_pages: numpages 63 >> > alloc_bounce_pages: numpages 63 >> > alloc_bounce_pages: numpages 8 >> > ath0: AR9220 mac 128.2 RF5133 phy 13.0 >> > ath0: 2GHz radio: 0x0000; 5GHz radio: 0x00c0 >> > ath1: <Atheros 9220> irq 27 at device 2.0 on pci0 >> > [ath] enabling AN_TOP2_FIXUP >> > ath1: AR9220 mac 128.2 RF5133 phy 13.0 >> > ath1: 2GHz radio: 0x0000; 5GHz radio: 0x00c0 >> > ath2: <Atheros 5413> irq 26 at device 3.0 on pci0 >> > ath2: AR5413 mac 10.5 RF5413 phy 6.1 >> > ath2: 2GHz radio: 0x0000; 5GHz radio: 0x0063 >> > ixpclk0: <IXP4XX Timer> on ixp0 >> > ixpiic0: <IXP4XX GPIO-Based I2C Interface> on ixp0 >> > ... >> > /sbin/ifconfig.bin wlan0 create wlandev ath0 wlanmode adhoc country ZA >> > wlan0: Ethernet address: 00:21:a4:35:70:42 >> > /sbin/ifconfig.bin wlan0 inet6 ifdisabled >> > /sbin/ifconfig.bin wlan0 -bgscan channel 140 ssid mesh bssid 02:8c:ca:fe:ca:00 >> > /sbin/ifconfig.bin wlan0 inet6 -ifdisabled >> > /sbin/ifconfig.bin wlan0 inet6 auto_linklocal >> > /sbin/ifconfig.bin wlan0 inet6 -ifdisabled >> > dev.ath.0.debug: 0 -> 8 >> > /sbin/ifconfig.bin wlan0 up >> > ath0: ath_init: if_flags 0x8803 >> > ath0: ath_stop_locked: invalid 0 if_flags 0x8803 >> > dev.ath.0.debug: 8 -> 0 >> > ath0: hardware error; resetting >> > ath0: 0x00000000 0x00000020 0x00000000, 0x00000000 0x00000000 0x00000000 >> > ar5416StopDmaReceive: dma failed to stop in 10ms >> > AR_CR=0x00000024 >> > AR_DIAG_SW=0x42000020 >> > /sbin/ifconfig.bin wlan0 inet6 fd35:ac5b:b116:10:: prefixlen 64 eui64 alias >> > /sbin/ifconfig.bin wlan0 inet6 fd35:ac5b:b116:10:: prefixlen 64 alias anycast >> > /sbin/ifconfig.bin wlan1 create wlandev ath1 wlanmode adhoc country ZA >> > wlan1: Ethernet address: 00:21:a4:35:6c:96 >> > /sbin/ifconfig.bin wlan1 inet6 ifdisabled >> > /sbin/ifconfig.bin wlan1 -bgscan channel 136 ssid mesh bssid 02:88:ca:fe:ca:00 >> > /sbin/ifconfig.bin wlan1 inet6 -ifdisabled >> > /sbin/ifconfig.bin wlan1 inet6 auto_linklocal >> > /sbin/ifconfig.bin wlan1 inet6 -ifdisabled >> > dev.ath.1.debug: 0 -> 8 >> > /sbin/ifconfig.bin wlan1 up >> > ath1: ath_init: if_flags 0x8803 >> > ath1: ath_stop_locked: invalid 0 if_flags 0x8803 >> > R[ 0] (DS.V:0xcd027000 DS.P:0x1227000) L:01227060 D:00089000 * >> > 00000000 00000800 0b802c2c 000000b2 >> > 0000175f 00000100 2f808080 00000000 00000000 00000000 00000003 >> > R[ 0] (DS.V:0xcd027060 DS.P:0x1227060) L:012270c0 D:0008a000 >> > 00000000 00000800 00000000 00000000 >> > 00000000 00000000 00000000 00000000 00000000 00000000 00000000 >> > dev.ath.1.debug: 8 -> 0 >> > /sbin/ifconfig.bin wlan1 inet6 fd35:ac5b:b116:10:: prefixlen 64 eui64 alias >> > /sbin/ifconfig.bin wlan1 inet6 fd35:ac5b:b116:10:: prefixlen 64 alias anycast >> > ifa_add_loopback_route: insertion failed: 17 >> > ifconfig.bin: ioctl (SIOCAIFADDR): File exists >> > /sbin/ifconfig.bin wlan2 create wlandev ath2 wlanmode adhoc country ZA >> > wlan2: Ethernet address: 00:21:a4:32:38:c2 >> > /sbin/ifconfig.bin wlan2 inet6 ifdisabled >> > ath0: device timeout >> > ar5416StopDmaReceive: dma failed to stop in 10ms >> > AR_CR=0x00000024 >> > AR_DIAG_SW=0x42000020 >> > /sbin/ifconfig.bin wlan2 -bgscan channel 13 ssid hotspot bssid 02:0d:ca:fe:ca:00 >> > /sbin/ifconfig.bin wlan2 inet6 -ifdisabled >> > /sbin/ifconfig.bin wlan2 inet6 auto_linklocal >> > /sbin/ifconfig.bin wlan2 inet6 -ifdisabled >> > dev.ath.2.debug: 0 -> 8 >> > /sbin/ifconfig.bin wlan2 up >> > ath2: ath_init: if_flags 0x8803 >> > ath2: ath_stop_locked: invalid 0 if_flags 0x8803 >> > dev.ath.2.debug: 8 -> 0 >> > /sbin/ifconfig.bin wlan2 inet 10.56.244.1/24 alias >> > /sbin/ifconfig.bin wlan2 inet6 fd35:ac5b:b116:38f4:: prefixlen 64 eui64 alias >> > /sbin/ifconfig.bin wlan2 inet6 fd35:ac5b:b116:38f4:: prefixlen 64 alias anycast >> > ... >> > ath0: device timeout >> > ar5416StopDmaReceive: dma failed to stop in 10ms >> > AR_CR=0x00000024 >> > AR_DIAG_SW=0x42000020 >> > ... >> > tst-11-arm:~ # uptime >> > 9:18AM up 2 mins, 1 user, load averages: 1.63, 0.70, 0.28 >> > tst-11-arm:~ # sysctl hw.busdma >> > hw.busdma.total_bpages: 512 >> > hw.busdma.zone0.total_bpages: 512 >> > hw.busdma.zone0.free_bpages: 375 >> > hw.busdma.zone0.reserved_bpages: 0 >> > hw.busdma.zone0.active_bpages: 137 >> > hw.busdma.zone0.max_active_bpages: 137 >> > hw.busdma.zone0.total_bounced: 1739 >> > hw.busdma.zone0.total_deferred: 0 >> > hw.busdma.zone0.lowaddr: 0x4000fff >> > hw.busdma.zone0.alignment: 4096 >> > tst-11-arm:~ # ath0: device timeout >> > ar5416StopDmaReceive: dma failed to stop in 10ms >> > AR_CR=0x00000024 >> > AR_DIAG_SW=0x42000020 >> > >> > tst-11-arm:~ # uptime >> > 9:20AM up 4 mins, 1 user, load averages: 0.68, 0.68, 0.34 >> > tst-11-arm:~ # sysctl hw.busdma >> > hw.busdma.total_bpages: 512 >> > hw.busdma.zone0.total_bpages: 512 >> > hw.busdma.zone0.free_bpages: 326 >> > hw.busdma.zone0.reserved_bpages: 0 >> > hw.busdma.zone0.active_bpages: 186 >> > hw.busdma.zone0.max_active_bpages: 190 >> > hw.busdma.zone0.total_bounced: 6592 >> > hw.busdma.zone0.total_deferred: 0 >> > hw.busdma.zone0.lowaddr: 0x4000fff >> > hw.busdma.zone0.alignment: 4096 >> > tst-11-arm:~ # ath0: device timeout >> > ar5416StopDmaReceive: dma failed to stop in 10ms >> > AR_CR=0x00000024 >> > AR_DIAG_SW=0x42000020 >> > ath0: device timeout >> > ar5416StopDmaReceive: dma failed to stop in 10ms >> > AR_CR=0x00000024 >> > AR_DIAG_SW=0x42000020 >> > #################### >> > >> > The 2 other interfaces did not seem to have a problem and after a reboot >> > ath0/wlan0 was working fine again. >> > >> > John >> > -- >> > John Hay -- jhay@meraka.csir.co.za / jhay@meraka.org.za
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