This patchset contains a set of fixes found whilst investigating some privately
reported issues when using the sunhme device in tap mode on a busy network.

The first patch simply adds a trace-event for logging the PCI IRQ which was
useful in help diagnose the issues in the subsequent patches.

Patches 2-4 fix errors in enabling and disabling the receiver found during
local testing with NetBSD which toggles the receiver state on startup.

Finally patch 5 fixes a bug whereby on a busy network it is possible to
overflow the descriptor ring and therefore we must report this back correctly
to the OS to allow it to handle the situation accordingly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

Mark Cave-Ayland (5):
  sunhme: add trace event for logging PCI IRQ
  sunhme: fix incorrect constant in sunhme_can_receive()
  sunhme: flush any queued packets when HME_MAC_RXCFG_ENABLE bit is
    raised
  sunhme: fix return values from sunhme_receive() during receive packet
    processing
  sunhme: ensure that RX descriptor ring overflow is indicated to client
    driver

 hw/net/sunhme.c     | 29 +++++++++++++++++++++++++----
 hw/net/trace-events |  2 ++
 2 files changed, 27 insertions(+), 4 deletions(-)

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2.11.0