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  1. 20 4月, 2011 2 次提交
  3. 19 4月, 2011 1 次提交
  5. 18 4月, 2011 3 次提交
  7. 15 4月, 2011 4 次提交
  9. 14 4月, 2011 5 次提交
  11. 13 4月, 2011 19 次提交
  13. 12 4月, 2011 6 次提交
    • B
      sfc: Do not use efx_process_channel_now() in online self-test · d4fabcc8
      由 Ben Hutchings 提交于 
      During self-tests we use efx_process_channel_now() to handle
completion and other events synchronously.  This disables interrupts
and NAPI processing for the channel in question, but it may still be
interrupted by another channel.  A single socket may receive packets
from multiple net devices or even multiple channels of the same net
device, so this can result in deadlock on a socket lock.

Receiving packets in process context will also result in incorrect
classification by the network cgroup classifier.

Therefore, we must only use efx_process_channel_now() in the offline
loopback tests (which never deliver packets up the stack) and not for
the online interrupt and event tests.

For the interrupt test, there is no reason to process events.  We
only care that an interrupt is raised.

For the event test, we want to know whether events have been received,
and there may be many events ahead of the one we inject.  Therefore
remove efx_channel::magic_count and instead test whether
efx_channel::eventq_read_ptr advances.  This is currently an event
queue index and might wrap around to exactly the same value, resulting
in a false negative.  Therefore move the masking to efx_event() and
efx_nic_eventq_read_ack() so that it cannot wrap within the time of
the test.

The event test also tries to diagnose failures by checking whether an
event was delivered without causing an interrupt.  Add and use a
helper function that only does this.
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
      d4fabcc8
    • N
      sfc: Stop the TX queues during loopback self-tests · 9d1aea62
      由 Neil Turton 提交于 
      If the TX queues are running during loopback self tests, host
traffic gets looped back which causes the test to fail.  Avoid
restarting the TX queues after the port reset so that any packets
sent by the host get held back until after the tests have completed.

[bwh: Also wake all TX queues at the end of self-tests.]
Signed-off-by: NBen Hutchings <bhutchings@solarflare.com>
      9d1aea62
    • D
      llc: Fix length check in llc_fixup_skb(). · aa867359
      由 David S. Miller 提交于 
      Fixes bugzilla #32872

The LLC stack pretends to support non-linear skbs but there is a
direct use of skb_tail_pointer() in llc_fixup_skb().

Use pskb_may_pull() to see if data_size bytes remain and can be
accessed linearly in the packet, instead of direct pointer checks.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      aa867359
    • S
      caif: performance bugfix - allow radio stack to prioritize packets. · 4a9f65f6
      由 Sjur Brændeland 提交于 
          In the CAIF Payload message the Packet Type indication must be set to
    UNCLASSIFIED in order to allow packet prioritization in the modem's
    network stack. Otherwise TCP-Ack is not prioritized in the modems
    transmit queue.
Signed-off-by: NSjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4a9f65f6
    • S
      caif: Bugfix use for_each_safe when removing list nodes. · 0c184ed9
      由 Sjur Brændeland 提交于 
      Signed-off-by: NSjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      0c184ed9
    • A
      netxen: limit skb frags for non tso packet · c968bdf6
      由 amit salecha 提交于 
      Machines are getting deadlock in four node cluster environment.
All nodes are accessing (find /gfs2 -depth -print|cpio -ocv > /dev/null)
200 GB storage on a GFS2 filesystem.
This result in memory fragmentation and driver receives 18 frags for
1448 byte packets.
For non tso packet, fw drops the tx request, if it has >14 frags.

Fixing it by pulling extra frags.

Cc: stable@kernel.org
Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c968bdf6