[Qemu-devel] [PATCH 0/3] hw/net/spapr_llan: Fix bad RX performance of the spapr-vlan device

[Thomas Huth <thuth@redhat.com>]

These patches fix the bad receive performance of the spapr-vlan device
by introducing proper receive buffer pools of different sizes. Details
can be found in the patch description of the second patch.

David: Not sure whether this is still suitable for QEMU 2.6 since we're
in soft-freeze already. The patches fix a real problem (the bad
receive performance), and in case there are troubles with the changes,
it's still possible to switch back to the old behavior by setting
a property in the device, so I think it might be OK to still include
them in 2.6. If not, the first two patches could be queued for 2.7,
but the third patch then has to wait 'till we've got a proper
pseries-2.7 machine type.

Thomas Huth (3):
  hw/net/spapr_llan: Extract rx buffer code into separate functions
  hw/net/spapr_llan: Fix receive buffer handling for better performance
  hw/net/spapr_llan.c: Enable the RX buffer pools by default for new
    machines

 hw/net/spapr_llan.c | 311 ++++++++++++++++++++++++++++++++++++++++++++++------
 hw/ppc/spapr.c      |   7 +-
 2 files changed, 281 insertions(+), 37 deletions(-)

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1.8.3.1