1. 19 10月, 2012 8 次提交
  2. 11 10月, 2012 1 次提交
    • H
      e1000e: Change wthresh to 1 to avoid possible Tx stalls · 8edc0e62
      Hiroaki SHIMODA 提交于
      This patch originated from Hiroaki SHIMODA but has been modified
      by Intel with some minor cleanups and additional commit log text.
      
      Denys Fedoryshchenko and others reported Tx stalls on e1000e with
      BQL enabled.  Issue was root caused to hardware delays. They were
      introduced because some of the e1000e hardware with transmit
      writeback bursting enabled, waits until the driver does an
      explict flush OR there are WTHRESH descriptors to write back.
      
      Sometimes the delays in question were on the order of seconds,
      causing visible lag for ssh sessions and unacceptable tx
      completion latency, especially for BQL enabled kernels.
      
      To avoid possible Tx stalls, change WTHRESH back to 1.
      
      The current plan is to investigate a method for re-enabling
      WTHRESH while not harming BQL, but those patches will be later
      for net-next if they work.
      
      please enqueue for stable since v3.3 as this bug was introduced in
      commit 3f0cfa3b
      Author: Tom Herbert <therbert@google.com>
      Date:   Mon Nov 28 16:33:16 2011 +0000
      
          e1000e: Support for byte queue limits
      
          Changes to e1000e to use byte queue limits.
      Reported-by: NDenys Fedoryshchenko <denys@visp.net.lb>
      Tested-by: NDenys Fedoryshchenko <denys@visp.net.lb>
      Signed-off-by: NHiroaki SHIMODA <shimoda.hiroaki@gmail.com>
      CC: eric.dumazet@gmail.com
      CC: therbert@google.com
      Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      8edc0e62
  3. 09 10月, 2012 3 次提交
  4. 03 10月, 2012 5 次提交
  5. 02 10月, 2012 1 次提交
  6. 24 9月, 2012 6 次提交
  7. 23 9月, 2012 1 次提交
  8. 22 9月, 2012 7 次提交
  9. 20 9月, 2012 5 次提交
    • J
      ixgbevf: scheduling while atomic in reset hw path · 012dc19a
      John Fastabend 提交于
      In ixgbevf_reset_hw_vf() msleep is called while holding mbx_lock
      resulting in a schedule while atomic bug with trace below.
      
      This patch uses mdelay instead.
      
      BUG: scheduling while atomic: ip/6539/0x00000002
      2 locks held by ip/6539:
       #0:  (rtnl_mutex){+.+.+.}, at: [<ffffffff81419cc3>] rtnl_lock+0x17/0x19
       #1:  (&(&adapter->mbx_lock)->rlock){+.+...}, at: [<ffffffffa0030855>] ixgbevf_reset+0x30/0xc1 [ixgbevf]
      Modules linked in: ixgbevf ixgbe mdio libfc scsi_transport_fc 8021q scsi_tgt garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf ipv6 uinput igb coretemp hwmon crc32c_intel ioatdma i2c_i801 shpchp microcode lpc_ich mfd_core i2c_core joydev dca pcspkr serio_raw pata_acpi ata_generic usb_storage pata_jmicron
      Pid: 6539, comm: ip Not tainted 3.6.0-rc3jk-net-next+ #104
      Call Trace:
       [<ffffffff81072202>] __schedule_bug+0x6a/0x79
       [<ffffffff814bc7e0>] __schedule+0xa2/0x684
       [<ffffffff8108f85f>] ? trace_hardirqs_off+0xd/0xf
       [<ffffffff814bd0c0>] schedule+0x64/0x66
       [<ffffffff814bb5e2>] schedule_timeout+0xa6/0xca
       [<ffffffff810536b9>] ? lock_timer_base+0x52/0x52
       [<ffffffff812629e0>] ? __udelay+0x15/0x17
       [<ffffffff814bb624>] schedule_timeout_uninterruptible+0x1e/0x20
       [<ffffffff810541c0>] msleep+0x1b/0x22
       [<ffffffffa002e723>] ixgbevf_reset_hw_vf+0x90/0xe5 [ixgbevf]
       [<ffffffffa0030860>] ixgbevf_reset+0x3b/0xc1 [ixgbevf]
       [<ffffffffa0032fba>] ixgbevf_open+0x43/0x43e [ixgbevf]
       [<ffffffff81409610>] ? dev_set_rx_mode+0x2e/0x33
       [<ffffffff8140b0f1>] __dev_open+0xa0/0xe5
       [<ffffffff814097ed>] __dev_change_flags+0xbe/0x142
       [<ffffffff8140b01c>] dev_change_flags+0x21/0x56
       [<ffffffff8141a843>] do_setlink+0x2e2/0x7f4
       [<ffffffff81016e36>] ? native_sched_clock+0x37/0x39
       [<ffffffff8141b0ac>] rtnl_newlink+0x277/0x4bb
       [<ffffffff8141aee9>] ? rtnl_newlink+0xb4/0x4bb
       [<ffffffff812217d1>] ? selinux_capable+0x32/0x3a
       [<ffffffff8104fb17>] ? ns_capable+0x4f/0x67
       [<ffffffff81419cc3>] ? rtnl_lock+0x17/0x19
       [<ffffffff81419f28>] rtnetlink_rcv_msg+0x236/0x253
       [<ffffffff81419cf2>] ? rtnetlink_rcv+0x2d/0x2d
       [<ffffffff8142fd42>] netlink_rcv_skb+0x43/0x94
       [<ffffffff81419ceb>] rtnetlink_rcv+0x26/0x2d
       [<ffffffff8142faf1>] netlink_unicast+0xee/0x174
       [<ffffffff81430327>] netlink_sendmsg+0x26a/0x288
       [<ffffffff813fb04f>] ? rcu_read_unlock+0x56/0x67
       [<ffffffff813f5e6d>] __sock_sendmsg_nosec+0x58/0x61
       [<ffffffff813f81b7>] __sock_sendmsg+0x3d/0x48
       [<ffffffff813f8339>] sock_sendmsg+0x6e/0x87
       [<ffffffff81107c9f>] ? might_fault+0xa5/0xac
       [<ffffffff81402a72>] ? copy_from_user+0x2a/0x2c
       [<ffffffff81402e62>] ? verify_iovec+0x54/0xaa
       [<ffffffff813f9834>] __sys_sendmsg+0x206/0x288
       [<ffffffff810694fa>] ? up_read+0x23/0x3d
       [<ffffffff811307e5>] ? fcheck_files+0xac/0xea
       [<ffffffff8113095e>] ? fget_light+0x3a/0xb9
       [<ffffffff813f9a2e>] sys_sendmsg+0x42/0x60
       [<ffffffff814c5ba9>] system_call_fastpath+0x16/0x1b
      
      CC: Eric Dumazet <edumazet@google.com>
      Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
      Tested-By: NRobert Garrett <robertx.e.garrett@intel.com>
      Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
      012dc19a
    • A
      ixgbevf: Add support for VF API negotiation · 31186785
      Alexander Duyck 提交于
      This change makes it so that the VF can support the PF/VF API negotiation
      protocol.  Specifically in this case we are adding support for API 1.0
      which will mean that the VF is capable of cleaning up buffers that span
      multiple descriptors without triggering an error.
      Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
      Tested-by: NSibai Li <sibai.li@intel.com>
      Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
      31186785
    • A
      igb: Support to enable EEE on all eee_supported devices · e5461112
      Akeem G. Abodunrin 提交于
      Current implementation enables EEE on only i350 device. This patch enables
      EEE on all eee_supported devices. Also, configured LPI clock to keep
      running before EEE is enabled on i210 and i211 devices.
      Signed-off-by: NAkeem G. Abodunrin <akeem.g.abodunrin@intel.com>
      Tested-by: NJeff Pieper  <jeffrey.e.pieper@intel.com>
      Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
      e5461112
    • A
      igb: Remove artificial restriction on RQDPC stat reading · ae1c07a6
      Alexander Duyck 提交于
      For some reason the reading of the RQDPC register was being artificially
      limited to 4K.  Instead of limiting the value we should read the value and
      add the full amount.  Otherwise this can lead to a misleading number of
      dropped packets when the actual value is in fact much higher.
      Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com>
      Tested-by: NJeff Pieper   <jeffrey.e.pieper@intel.com>
      Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
      ae1c07a6
    • S
      netdev: make address const in device address management · 6b6e2725
      stephen hemminger 提交于
      The internal functions for add/deleting addresses don't change
      their argument.
      Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6b6e2725
  10. 19 9月, 2012 1 次提交
  11. 17 9月, 2012 2 次提交