On Fri, 2014-12-05 at 10:55 +0100, Sander Eikelenboom wrote: > Hi Johannes, > > I'm trying to use an Intel Corporation Centrino Advanced-N 6235 (rev 24) with > openwrt and hostapd to provide router functionality. > That all works fine, except that it at max accepts 12 wireless clients. > I have tried a few kernels (including 3.18-rc7) and versions of openwrt > (including trunk) already, but all to no avail. > > So i'm wondering is there a hardware limitation of stations that can connect to > this mini-pci card in ap-mode ? > > [ 10.621530] iwlwifi 0000:00:05.0: loaded firmware version 18.168.6.1 op_mode iwldvm > [ 10.621546] iwlwifi 0000:00:05.0: CONFIG_IWLWIFI_DEBUG enabled > [ 10.621548] iwlwifi 0000:00:05.0: CONFIG_IWLWIFI_DEBUGFS enabled > [ 10.621549] iwlwifi 0000:00:05.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled > [ 10.621550] iwlwifi 0000:00:05.0: Detected Intel(R) Centrino(R) Advanced-N 6235 AGN, REV=0xB0 > [ 10.621976] iwlwifi 0000:00:05.0: L1 Disabled - LTR Disabled > [ 10.640696] cfg80211: Ignoring regulatory request set by core since the driver uses its own custom regulatory domain > [ 10.640832] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' > ... > [ 10.654858] lib80211: common routines for IEEE802.11 drivers > [ 10.654859] lib80211_crypt: registered algorithm 'NULL' > [ 10.654864] lib80211_crypt: registered algorithm 'WEP' > [ 10.654866] lib80211_crypt: registered algorithm 'CCMP' > [ 10.654869] lib80211_crypt: registered algorithm 'TKIP' > .. > [ 31.016196] cfg80211: Calling CRDA to update world regulatory domain > [ 32.253288] iwlwifi 0000:00:05.0: L1 Disabled - LTR Disabled > [ 32.364036] iwlwifi 0000:00:05.0: Radio type=0x2-0x1-0x0 > [ 33.008507] iwlwifi 0000:00:05.0: L1 Disabled - LTR Disabled > [ 33.116331] iwlwifi 0000:00:05.0: Radio type=0x2-0x1-0x0 > > > the first clients connect perfectly well but after 12 client have connected, for > the 13th i get: > > [ 784.301106] wlan0: Allocated STA 00:0d:f0:2e:ee:02 > [ 784.301117] wlan0: moving STA 00:0d:f0:2e:ee:02 to state 2 > [ 784.301122] wlan0: moving STA 00:0d:f0:2e:ee:02 to state 3 > [ 784.301141] iwlwifi 0000:00:05.0: Unable to prepare station 00:0d:f0:2e:ee:02 for addition > [ 784.481399] iwlwifi 0000:00:05.0: Unable to add station 00:0d:f0:2e:ee:02 (-22) > [ 784.647835] wlan0: Destroyed STA 00:0d:f0:2e:ee:02 > [ 785.828588] wlan0: Allocated STA 00:0d:f0:2e:ee:02 > [ 785.828600] wlan0: moving STA 00:0d:f0:2e:ee:02 to state 2 > [ 785.828605] wlan0: moving STA 00:0d:f0:2e:ee:02 to state 3 > [ 785.828624] iwlwifi 0000:00:05.0: Unable to prepare station 00:0d:f0:2e:ee:02 for addition > [ 786.044379] iwlwifi 0000:00:05.0: Unable to add station 00:0d:f0:2e:ee:02 (-22) > [ 786.219632] wlan0: Destroyed STA 00:0d:f0:2e:ee:02 > > The firmware seems to be the latest available for download. > > If this isn't a hardware limitation, could you give a pointer to the debug > values to use so i can get the debug output you would be interested in ? You might be running into: dvm/commands.h:#define IWLAGN_STATION_COUNT 16 I think a couple of those slots are used for book-keeping stuff, which might be why you run out of them at 12. Johannes or Emmanuel would know more though. Dan > If it is a hardware limitation, are there any other intel mini-pci adapters that > don't have this hardware limitation (or at least a highter one). > > -- > Sander > > > lspci: > > 00:05.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24) > Subsystem: Intel Corporation Centrino Advanced-N 6235 AGN > Physical Slot: 5 > Flags: bus master, fast devsel, latency 0, IRQ 70 > Memory at f3090000 (64-bit, non-prefetchable) [size=8K] > Capabilities: [c8] Power Management version 3 > Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ > Capabilities: [e0] Express Endpoint, MSI 00 > Kernel driver in use: iwlwifi > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
