From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wi0-f171.google.com ([209.85.212.171]:43091 "EHLO mail-wi0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754760AbaDGJLL convert rfc822-to-8bit (ORCPT ); Mon, 7 Apr 2014 05:11:11 -0400 Received: by mail-wi0-f171.google.com with SMTP id q5so4669135wiv.4 for ; Mon, 07 Apr 2014 02:11:09 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <5341F1A9.2030202@candelatech.com> References: <1396611464-5940-1-git-send-email-michal.kazior@tieto.com> <5341F1A9.2030202@candelatech.com> Date: Mon, 7 Apr 2014 11:11:09 +0200 Message-ID: (sfid-20140407_111116_011372_10654191) Subject: Re: [RFT 0/4] ath10k: fix flushing and tx stalls From: Michal Kazior To: Ben Greear Cc: "ath10k@lists.infradead.org" , linux-wireless Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On 7 April 2014 02:30, Ben Greear wrote: > On 04/04/2014 04:37 AM, Michal Kazior wrote: >> >> Hi, >> >> After digging around I've found what seems to be >> the problem with WMI Tx credit starvation and >> inability to properly flush Tx in ath10k_flush(). > > > I applied all four, rebooted AP and Station machine with the > new kernel (3.14.0-wl-ath+). I had removed my own tx-hang detection > hack. > > It is not working well...though perhaps it is not directly related > to your patches...I will do some reboots and try reversing some patches. > But, 3.14.0-rc8-wl-ath+ was working mostly OK for me.... > > It seems my user-space app got hung, probably because rtnl was being > held too long while doing admin-down on a bunch of stations. > > Out of 32 stations, maybe 5 of them managed to come up and get > an IP address through DHCP before user-space app hung and log > started filling with the errors at the end of the dmesg below. > > > sta218: associated > IPv6: ADDRCONF(NETDEV_CHANGE): sta218: link becomes ready > sta219: authenticate with 04:f0:21:03:38:99 > ath10k: mac vdev 19 beacon_interval 100 > ath10k: mac vdev 19 create peer 04:f0:21:03:38:99 > ath10k: mac vdev 19 start 04:f0:21:03:38:99 > ath10k: mac vdev 19 start center_freq 5180 phymode 11ac-vht80 > > sta219: send auth to 04:f0:21:03:38:99 (try 1/3) > sta219: authenticated > sta218: deauthenticating from 04:f0:21:03:38:99 by local choice (Reason: > 3=DEAUTH_LEAVING) > ath10k: mac flushing peer 04:f0:21:03:38:99 on vdev 18 mgmt tid for unicast > mgmt > ath10k: mac vdev 18 peer delete 04:f0:21:03:38:99 (sta gone) > ath10k: mac vdev 18 stop (disassociated > ath10k: mac vdev 18 down > ath10k: mac vdev 18 cts_prot 0 > ath10k: mac vdev 18 slot_time 1 > ath10k: mac vdev 18 preamble 1n > sta219: associate with 04:f0:21:03:38:99 (try 1/3) > sta219: RX AssocResp from 04:f0:21:03:38:99 (capab=0x1 status=0 aid=22) > ath10k: mac vdev 19 dtim_period 2 > ath10k: mac vdev 19 slot_time 2 > ath10k: mac ht peer 04:f0:21:03:38:99 mcs cnt 24 nss 3 > ath10k: mac vht peer 04:f0:21:03:38:99 max_mpdu 65535 flags 0x6003001 > ath10k: mac peer 04:f0:21:03:38:99 phymode 11ac-vht80 > ath10k: mac vdev 19 up (associated) bssid 04:f0:21:03:38:99 aid 22 > sta219: associated > IPv6: ADDRCONF(NETDEV_CHANGE): sta219: link becomes ready > sta220: authenticate with 04:f0:21:03:38:99 > ath10k: mac vdev 20 beacon_interval 100 > ath10k: mac vdev 20 create peer 04:f0:21:03:38:99 > ath10k: mac vdev 20 start 04:f0:21:03:38:99 > ath10k: mac vdev 20 start center_freq 5180 phymode 11ac-vht80 > sta220: send auth to 04:f0:21:03:38:99 (try 1/3) > sta220: authenticated > sta220: associate with 04:f0:21:03:38:99 (try 1/3) > sta220: RX AssocResp from 04:f0:21:03:38:99 (capab=0x1 status=0 aid=23) > ath10k: mac vdev 20 dtim_period 2 > ath10k: mac vdev 20 slot_time 2 > ath10k: mac ht peer 04:f0:21:03:38:99 mcs cnt 24 nss 3 > ath10k: mac vht peer 04:f0:21:03:38:99 max_mpdu 65535 flags 0x6003001 > ath10k: mac peer 04:f0:21:03:38:99 phymode 11ac-vht80 > ath10k: mac vdev 20 up (associated) bssid 04:f0:21:03:38:99 aid 23 > sta220: associated > IPv6: ADDRCONF(NETDEV_CHANGE): sta220: link becomes ready > ath10k: Creating vdev id: 21 map: 4292870144 > ath10k: mac vdev create 21 (add interface) type 2 subtype 0 > ath10k: mac vdev 21 cts_prot 0 > ath10k: mac vdev 21 slot_time 1 > ath10k: mac vdev 21 preamble 1n > IPv6: ADDRCONF(NETDEV_UP): sta221: link is not ready > ath10k: mac vdev 21 delete (remove interface) > ath10k: peer-unmap-event: unknown peer id 23 > ath10k: Creating vdev id: 21 map: 4292870144 > ath10k: mac vdev create 21 (add interface) type 2 subtype 0 > ath10k: mac vdev 21 cts_prot 0 > ath10k: mac vdev 21 slot_time 1 > ath10k: mac vdev 21 preamble 1n > IPv6: ADDRCONF(NETDEV_UP): sta221: link is not ready > sta217: authenticate with 04:f0:21:03:38:99 > ath10k: mac vdev 17 beacon_interval 100 > ath10k: mac vdev 17 create peer 04:f0:21:03:38:99 > ath10k: mac vdev 17 start 04:f0:21:03:38:99 > ath10k: mac vdev 17 start center_freq 5180 phymode 11ac-vht80 > > sta217: send auth to 04:f0:21:03:38:99 (try 1/3) > sta217: authenticated > sta217: associate with 04:f0:21:03:38:99 (try 1/3) > sta217: RX AssocResp from 04:f0:21:03:38:99 (capab=0x1 status=0 aid=20) > ath10k: mac vdev 17 dtim_period 2 > ath10k: mac vdev 17 slot_time 2 > ath10k: mac ht peer 04:f0:21:03:38:99 mcs cnt 24 nss 3 > ath10k: mac vht peer 04:f0:21:03:38:99 max_mpdu 65535 flags 0x6003001 > ath10k: mac peer 04:f0:21:03:38:99 phymode 11ac-vht80 > ath10k: mac vdev 17 up (associated) bssid 04:f0:21:03:38:99 aid 20 > sta217: associated > IPv6: ADDRCONF(NETDEV_CHANGE): sta217: link becomes ready > sta218: authenticate with 04:f0:21:03:38:99 > ath10k: mac vdev 18 beacon_interval 100 > ath10k: mac vdev 18 create peer 04:f0:21:03:38:99 > ath10k: mac vdev 18 start 04:f0:21:03:38:99 > ath10k: mac vdev 18 start center_freq 5180 phymode 11ac-vht80 > sta218: send auth to 04:f0:21:03:38:99 (try 1/3) > ath10k: Creating vdev id: 22 map: 4290772992 > ath10k: mac vdev create 22 (add interface) type 2 subtype 0 > sta218: authenticated > ath10k: mac vdev 22 cts_prot 0 > ath10k: mac vdev 22 slot_time 1 > ath10k: mac vdev 22 preamble 1n > IPv6: ADDRCONF(NETDEV_UP): sta222: link is not ready > sta218: associate with 04:f0:21:03:38:99 (try 1/3) > sta218: RX AssocResp from 04:f0:21:03:38:99 (capab=0x1 status=0 aid=18) > ath10k: mac vdev 18 dtim_period 2 > ath10k: mac vdev 18 slot_time 2 > ath10k: mac ht peer 04:f0:21:03:38:99 mcs cnt 24 nss 3 > ath10k: mac vht peer 04:f0:21:03:38:99 max_mpdu 65535 flags 0x6003001 > ath10k: mac peer 04:f0:21:03:38:99 phymode 11ac-vht80 > ath10k: mac vdev 18 up (associated) bssid 04:f0:21:03:38:99 aid 18 > sta218: associated > sta222: authenticate with 04:f0:21:03:38:99 > ath10k: mac vdev 22 beacon_interval 100 > ath10k: mac vdev 22 create peer 04:f0:21:03:38:99 > ath10k: mac vdev 22 start 04:f0:21:03:38:99 > ath10k: mac vdev 22 start center_freq 5180 phymode 11ac-vht80 > > sta222: send auth to 04:f0:21:03:38:99 (try 1/3) > ath10k: mac vdev 22 peer delete 04:f0:21:03:38:99 (sta gone) > ath10k: mac vdev 22 stop (disassociated > ath10k: mac vdev 22 down > ath10k: mac vdev 22 delete (remove interface) > ath10k: peer-unmap-event: unknown peer id 24 > ath10k: Creating vdev id: 22 map: 4290772992 > ath10k: mac vdev create 22 (add interface) type 2 subtype 0 > ath10k: mac vdev 22 cts_prot 0 > ath10k: mac vdev 22 slot_time 1 > ath10k: mac vdev 22 preamble 1n > IPv6: ADDRCONF(NETDEV_UP): sta222: link is not ready > sta221: authenticate with 04:f0:21:03:38:99 > ath10k: mac vdev 21 beacon_interval 100 > ath10k: mac vdev 21 create peer 04:f0:21:03:38:99 > ath10k: mac vdev 21 start 04:f0:21:03:38:99 > ath10k: mac vdev 21 start center_freq 5180 phymode 11ac-vht80 > > sta221: send auth to 04:f0:21:03:38:99 (try 1/3) > sta221: authenticated > sta221: associate with 04:f0:21:03:38:99 (try 1/3) > sta221: RX AssocResp from 04:f0:21:03:38:99 (capab=0x1 status=0 aid=19) > ath10k: mac vdev 21 dtim_period 2 > ath10k: mac vdev 21 slot_time 2 > ath10k: mac ht peer 04:f0:21:03:38:99 mcs cnt 24 nss 3 > ath10k: mac vht peer 04:f0:21:03:38:99 max_mpdu 65535 flags 0x6003001 > ath10k: mac peer 04:f0:21:03:38:99 phymode 11ac-vht80 > ath10k: mac vdev 21 up (associated) bssid 04:f0:21:03:38:99 aid 19 > sta221: associated > IPv6: ADDRCONF(NETDEV_CHANGE): sta221: link becomes ready > sta222: authenticate with 04:f0:21:03:38:99 > ath10k: mac vdev 22 beacon_interval 100 > ath10k: mac vdev 22 create peer 04:f0:21:03:38:99 > ath10k: mac vdev 22 start 04:f0:21:03:38:99 > ath10k: mac vdev 22 start center_freq 5180 phymode 11ac-vht80 > sta222: send auth to 04:f0:21:03:38:99 (try 1/3) > sta222: authenticated > sta222: associate with 04:f0:21:03:38:99 (try 1/3) > sta222: RX AssocResp from 04:f0:21:03:38:99 (capab=0x1 status=0 aid=24) > ath10k: mac vdev 22 dtim_period 2 > ath10k: mac vdev 22 slot_time 2 > ath10k: mac ht peer 04:f0:21:03:38:99 mcs cnt 24 nss 3 > ath10k: mac vht peer 04:f0:21:03:38:99 max_mpdu 65535 flags 0x6003001 > ath10k: mac peer 04:f0:21:03:38:99 phymode 11ac-vht80 > ath10k: mac vdev 22 up (associated) bssid 04:f0:21:03:38:99 aid 24 > sta222: associated > IPv6: ADDRCONF(NETDEV_CHANGE): sta222: link becomes ready > > sta213: deauthenticating from 04:f0:21:03:38:99 by local choice (Reason: > 3=DEAUTH_LEAVING) > ath10k: mac flushing peer 04:f0:21:03:38:99 on vdev 13 mgmt tid for unicast > mgmt > ath10k: mac vdev 13 peer delete 04:f0:21:03:38:99 (sta gone) > ath10k: mac vdev 13 stop (disassociated > ath10k: mac vdev 13 down > ath10k: mac vdev 13 cts_prot 0 > ath10k: mac vdev 13 slot_time 1 > > ath10k: failed to set erp slot for vdev 13: -11 > ath10k: mac vdev 13 preamble 1n > ath10k: failed to set preamble for vdev 13: -11 > ath10k: failed to set wmm params: -11 > ath10k: failed to set wmm params: -11 These logs are not enough. I'd love to see traces for this to see what frames are actually submitted and when tx credits are replenished. I also wonder if this can be somehow related to your FW changes to allow connecting multiple client virtual interfaces to a single AP? Michał From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wi0-x22b.google.com ([2a00:1450:400c:c05::22b]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WX5aV-0000LP-Qa for ath10k@lists.infradead.org; Mon, 07 Apr 2014 09:11:33 +0000 Received: by mail-wi0-f171.google.com with SMTP id q5so4649634wiv.16 for ; Mon, 07 Apr 2014 02:11:09 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <5341F1A9.2030202@candelatech.com> References: <1396611464-5940-1-git-send-email-michal.kazior@tieto.com> <5341F1A9.2030202@candelatech.com> Date: Mon, 7 Apr 2014 11:11:09 +0200 Message-ID: Subject: Re: [RFT 0/4] ath10k: fix flushing and tx stalls From: Michal Kazior List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Ben Greear Cc: linux-wireless , "ath10k@lists.infradead.org" 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