[PATCH RFC 00/14] *** multifd for RDMA v2 ***

[Zhimin Feng]

Hi

This is a version against current code. It is based on the multifd work.
we can use the multifd parameters for rdma transport. All data is
transported by the multifd RDMA channels and the main channel is only
used to distribute its to the different multifd channels.

Zhimin Feng (14):
  migration: add the 'migrate_use_rdma_pin_all' function
  migration: judge whether or not the RDMA is used for migration
  migration/rdma: Create multiFd migration threads
  migration/rdma: Export the RDMAContext struct
  migration/rdma: Create the multifd channels for RDMA
  migration/rdma: Transmit initial packet
  migration/rdma: Export the 'qemu_rdma_registration_handle' and
    'qemu_rdma_exchange_send' functions
  migration/rdma: Add the function for dynamic page registration
  migration/rdma: register memory for multifd RDMA channels
  migration/rdma: Wait for all multifd to complete registration
  migration/rdma: use multifd to migrate VM for rdma-pin-all mode
  migration/rdma: use multifd to migrate VM for NOT rdma-pin-all mode
  migration/rdma: only register the memory for multifd channels
  migration/rdma: RDMA cleanup for multifd migration

 migration/migration.c |  19 ++
 migration/migration.h |   2 +
 migration/multifd.c   | 192 +++++++++++++-
 migration/multifd.h   |  12 +
 migration/qemu-file.c |   5 +
 migration/qemu-file.h |   1 +
 migration/rdma.c      | 579 +++++++++++++++++++++++-------------------
 migration/rdma.h      | 268 +++++++++++++++++++
 8 files changed, 804 insertions(+), 274 deletions(-)

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2.19.1