1. 09 Jun, 2015 9 commits
  2. 01 Jun, 2015 2 commits
    • Michal Kazior's avatar
      ath10k: fix possible ps sleep crash · 0bcbbe67
      Michal Kazior authored
      If probing failed pci sleep timer could remain
      running and trigger after ath10k structures were
      freed causing invalid pointer dereference:
       BUG: unable to handle kernel paging request at ffffc90001c80004
       IP: [<ffffffff81354728>] iowrite32+0x38/0x40
       Call Trace:
        [<ffffffffa00da048>] ? __ath10k_pci_sleep+0x48/0x60 [ath10k_pci]
        [<ffffffffa00da44e>] ath10k_pci_ps_timer+0x5e/0x80 [ath10k_pci]
        [<ffffffff810b210e>] call_timer_fn+0x3e/0x120
        [<ffffffffa00da3f0>] ? ath10k_pci_wake+0x150/0x150 [ath10k_pci]
        [<ffffffff810b3d11>] run_timer_softirq+0x201/0x2e0
        [<ffffffff8105d73f>] __do_softirq+0xaf/0x290
        [<ffffffff8105da95>] irq_exit+0x95/0xa0
        [<ffffffff81950406>] smp_apic_timer_interrupt+0x46/0x60
        [<ffffffff8194e77e>] apic_timer_interrupt+0x6e/0x80
      Fixes: 77258d40
       ("ath10k: enable pci soc powersaving")
      Signed-off-by: default avatarMichal Kazior <michal.kazior@tieto.com>
      Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
    • Rajkumar Manoharan's avatar
      ath10k: bypass PLL setting on target init for QCA9888 · 163f5264
      Rajkumar Manoharan authored
      Some of of qca988x solutions are having global reset issue
      during target initialization. Bypassing PLL setting before
      downloading firmware and letting the SoC run on REF_CLK is fixing
      the problem. Corresponding firmware change is also needed to set
      the clock source once the target is initialized. Since 10.2.4
      firmware is having this ROM patch, applying skip_clock_init only
      for 10.2.4 firmware versions.
      Signed-off-by: default avatarRajkumar Manoharan <rmanohar@qti.qualcomm.com>
      Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
  3. 29 May, 2015 4 commits
    • Michal Kazior's avatar
      ath10k: add missing firmware declarations · e451c1db
      Michal Kazior authored
      This could lead userspace initram images getting
      built without necessary firmware files included
      leading to probing failures of ath10k on boot with
      Signed-off-by: default avatarMichal Kazior <michal.kazior@tieto.com>
      Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
    • Michal Kazior's avatar
      ath10k: fix inconsistent survey reports · 44b7d483
      Michal Kazior authored
      In some cases some channel survey data was
      reported incorrect.
      Channel info events were expected to come in pairs
      without and with COMPLETE flag set respectively
      for each channel visit during scan.
      The known deviation from this is rule for last
      scan chan info and first (next) scan chan info
      both have COMPLETE flag set. This was either
      programmed with the intent of providing BSS cycle
      count info or this is an artefact of firmware scan
      state machine. Either way this is useless due to
      short wraparound time, wraparound quirks and no
      overflow notification.
      Survey dumps now include only data gathered during
      scan channel visits that can be computed
      This should improve hostapd ACS a little bit.
      Reported-by: default avatarSrinivasa Duvvuri <sduvvuri@chromium.org>
      Signed-off-by: default avatarMichal Kazior <michal.kazior@tieto.com>
      Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
    • Michal Kazior's avatar
      ath10k: handle cycle counter wraparound · 587f7031
      Michal Kazior authored
      When QCA988X cycle counter HW register wraps
      around it resets to 0x7fffffff instead of 0. All
      other cycle counter related registers are divided
      by 2 so they never wraparound themselves. QCA61X4
      has a uniform CC and it wraparounds in a regular
      fashion though.
      Worst case wraparound time is approx 24 seconds
      (2**31 / 88MHz). Since scan channel visit times
      are max 5 seconds (offchannel case) it is
      guaranteed there's been at most 1 wraparound and
      it is possible to compute survey active time
      value. It is, however, impossible to determine the
      point at which Rx Clear Count has been divided by
      two so it is not reported upon wraparound.
      This fixes some occasional incorrect survey data
      on QCA988X as some channels (depending on how/when
      scan/offchannel requests were requested) would
      have approx 24 sec active time which wasn't
      actually the case.
      This should improve hostapd ACS a little bit.
      Reported-by: default avatarSrinivasa Duvvuri <sduvvuri@chromium.org>
      Signed-off-by: default avatarMichal Kazior <michal.kazior@tieto.com>
      Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
    • Michal Kazior's avatar
      ath10k: move cycle_count macro · 0936ea3f
      Michal Kazior authored
      The macro isn't WMI specific. Instead it is
      related to hardware chip so move the macro
      accordingly. While at it document the magic value.
      Signed-off-by: default avatarMichal Kazior <michal.kazior@tieto.com>
      Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
  4. 25 May, 2015 1 commit
    • Kalle Valo's avatar
      Merge ath-next from ath.git · 1d36f46b
      Kalle Valo authored
      Major changes:
      * qca6174 power consumption improvements, enable ASPM etc (Michal)
      * support Wi-Fi Simple Configuration in STA mode
  5. 24 May, 2015 21 commits
  6. 22 May, 2015 3 commits
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 36583eb5
      David S. Miller authored
      Switchdev was a case of RTNH_H_{EXTERNAL --> OFFLOAD}
      renaming overlapping with net-next changes of various
      phy.c was a case of two changes, one adding a local
      variable to a function whilst the second was removing
      tcp.c overlapped a deadlock fix with the addition of new tcp_info
      statistic values.
      macb.c involved the addition of two zyncq device entries.
      skbuff.h involved adding back ipv4_daddr to nf_bridge_info
      whilst net-next changes put two other existing members of
      that struct into a union.
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • David S. Miller's avatar
      Merge branch 'pktgen-new-scripts' · fa7912be
      David S. Miller authored
      Jesper Dangaard Brouer says:
      pktgen: cleanups and introducing new samples/pktgen scripts
       - Aborted v2 send due it was not generating diff stat
         (this is a bug in stg-mail, if not in the root directory)
      v2: address nitpicks from Cong Wang
       - Remove useless cat's, but keep them for old pgset()
       - Comment on: Due to pgctrl, cannot use exit code $? from grep
       - Use arithmetic compare in pktgen_sample03_burst_single_flow.sh
      This patchset is focused on making pktgen easier to use and better
      documented. It contains a number of documentation updates and minor
      changes to pktgen.  The major contribution is introduction of common
      helper function for sample scripts.
      Instead of the old pgset() function, three new shell functions for
      configuring the different components of pktgen are introduced:
       pg_ctrl(), pg_thread() and pg_set().
      The new functions correspond to pktgens different components.
       * pg_ctrl()   control "pgctrl" (/proc/net/pktgen/pgctrl)
       * pg_thread() control the kernel threads and binding to devices
       * pg_set()    control setup of individual devices
      Helpers also provide consistent parameter parsing across the sample
      Usage example:
       ./pktgen_sample01_simple.sh -i eth41 -m 00:12:C0:02:AC:5A -d
      Usage: ./pktgen_sample01_simple.sh [-vx] -i ethX
        -i : ($DEV)       output interface/device (required)
        -s : ($PKT_SIZE)  packet size
        -d : ($DEST_IP)   destination IP
        -m : ($DST_MAC)   destination MAC-addr
        -t : ($THREADS)   threads to start
        -c : ($SKB_CLONE) SKB clones send before alloc new SKB
        -b : ($BURST)     HW level bursting of SKBs
        -v : ($VERBOSE)   verbose
        -x : ($DEBUG)     debug
      These scripts are borrowed from:
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    • Jesper Dangaard Brouer's avatar
      pktgen: add benchmark script pktgen_bench_xmit_mode_netif_receive.sh · 05a14d5e
      Jesper Dangaard Brouer authored
      This script pktgen_bench_xmit_mode_netif_receive.sh is a benchmark
      script, which can be used for benchmarking part of the network stack.
      This can be used for performance improving or catching regression in
      that area.
      The script is developed for benchmarking ingress qdisc path, original
      idea by Alexei Starovoitov.  This script don't really need any
      hardware.  This is achieved via the recently introduced stack inject
      feature "xmit_mode netif_receive". See commit 62f64aed
      introduce xmit_mode '<start_xmit|netif_receive>'").
      Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>