> -----Original Message----- > From: Hostap [mailto:hostap-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of > Barigal, Shrishail > Sent: Monday, July 25, 2016 13:38 > To: hostap@xxxxxxxxxxxxxxxxxxx > Subject: Regarding the P2P configuration file > > Hi All, > > I have been facing an issue with Multi Channel Concurrency related to > "p2p_ignore_shared_freq" in the P2P configuration file. > > Wpa_supplicant version used is 2.3. > > Below are the steps followed for testing > > 1. Connect STAUT interface to AP in channel 1. > 2. Start fast ping from STAUT to AP. > 3. Configure the operating channel as 6 . > 4. Add the parameter "p2p_ignore_shared_freq=1" to P2P conf file so > that it does not follow STA's channel and thus become Multi Channel > Concurrency. > 5. Start P2P find on both DUT and PEER devices. > 6. Start Group Negotiation on both DUT and PEER devices to become > GO. > > Actual Result: > -------------- > The P2P Group is formed in channel 1 instead of configured operating > channel 6. The P2P group is following the STA's channel. > > Expected Result: > -------------- > The P2P group shall be formed in channel 6 as we have configured to ignore > the own channel prefernce by adding "p2p_ignore_shared_freq=1" to P2P > conf file. > > Snippet of wpa_supplicant log: > > 07/04/16 14:09:34.056: 1467621566.711570: p2p0: P2P: > num_unused_channels: 1 > 07/04/16 14:09:34.056: 1467621566.711571: P2P: Setup freqs: freq=0 > num_MCC=2 shared_freqs=1 num_unused=1 > 07/04/16 14:09:34.056: 1467621566.711573: P2P: Try to prefer a frequency > (2412 MHz) we are already using > 07/04/16 14:09:34.056: 1467621566.711575: p2p0: Determining shared > radio frequencies (max len 2) > 07/04/16 14:09:34.057: 1467621566.711577: p2p0: Shared frequencies > (len=1): completed iteration > 07/04/16 14:09:34.057: 1467621566.711578: p2p0: freq[0]: 2412, flags=0x1 > 07/04/16 14:09:34.057: 1467621566.711580: p2p0: P2P: > num_unused_channels: 1 > 07/04/16 14:09:34.057: 1467621566.711581: P2P: Ignore own channel > preference 2412 MHz due to p2p_ignore_shared_freq=1 configuration > 07/04/16 14:09:34.057: 1467621566.711583: P2P: Own frequency > preference: 0 MHz > 07/04/16 14:09:34.057: 1467621566.711585: P2P: Create a new interface > p2p-p2p0-0 for the group > 07/04/16 14:09:34.057: 1467621566.711587: nl80211: Create interface > iftype 8 (P2P_CLIENT) > 07/04/16 14:09:34.057: 1467621566.712370: nl80211: New interface p2p- > p2p0-0 created: ifindex=14 > 07/04/16 14:09:34.057: 1467621566.712396: nl80211: Set TX rates failed: > ret=-95 (Operation not supported) > 07/04/16 14:09:34.057: 1467621566.712402: P2P: Created pending virtual > interface p2p-p2p0-0 addr 02:03:7f:50:80:01 > 07/04/16 14:09:34.057: 1467621566.712415: P2P: Request to start group > negotiation - peer=8e:fd:f0:02:04:01 GO Intent=1 Intended Interface > Address=02:03:7f:50:80:01 wps_method=3 persistent_group=0 > pd_before_go_neg=0 oob_pw_id=0 > 07/04/16 14:09:34.057: 1467621566.712554: P2P: Prepare channel - > force_freq=0 pref_freq=2412 go=0 > 07/04/16 14:09:34.057: 1467621566.712558: P2P: Prepare channel pref - > force_freq=0 pref_freq=2412 go=0 > 07/04/16 14:09:34.057: 1467621566.712576: P2P: prepared channels: > 81:1,2,3,4,5,6,7,8,9,10,11 115:36,40,44,48 124:149,153,157,161 116:36,44 > 117:40,48 126:149,157 127:153,161 128:36,40,44,48 > 07/04/16 14:09:34.057: 1467621566.712592: P2P: after go/cli filter/add: > 81:1,2,3,4,5,6,7,8,9,10,11 115:36,40,44,48 124:149,153,157,161 116:36,44 > 117:40,48 126:149,157 127:153,161 128:36,40,44,48 > 07/04/16 14:09:34.057: 1467621566.712596: P2P: Own preference for > operation channel: Operating Class 81 Channel 1\ > > The highlighted line is not coming into effect. > > Can anyone please help me understand the purpose of > p2p_ignore_shared_freq=1 in configuration file? > Try adding logic similar to the one introduced in http://w1.fi/gitweb/gitweb.cgi?p=hostap.git;a=commit;h=d0f61a4beafd7b33ae93eeb70c33a7c330924faf to wpas_p2p_connect (to clear the pref_freq). Regards, Ilan. _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
