Some subsystems may wish to create unique I/O channels
which are not shared across all users of the same I/O
device on the same thread.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I3ade3675d57338cf85b6a301285e6f392bd6cd2e
bdev and copy modules no longer have check_io functions
now - all polling is done via pollers registered when
I/O channels are created.
Other default resources are also removed - for example,
a qpair is no longer allocated and assigned per bdev
exposed by the nvme driver - the qpairs are only allocated
via I/O channels. Similar principle also applies to the
aio driver.
ioat channels are no longer allocated and assigned to
lcores - they are dynamically allocated and assigned
to I/O channels when needed. If no ioat channel is
available for an I/O channel, the copy engine framework
will revert to using memcpy/memset instead.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I99435a75fe792a2b91ab08f25962dfd407d6402f
While here, also break out a new ioat_poll() function which
takes the ioat_channel as a parameter. This will be reused
for some future refactoring.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I9c03577e8d90d9bbd4d7adb9c186f21f54b85e82
This list was originally intended to ensure blockdev I/O operations
with a malloc backend would not be completed until after the blockdev
I/O submission routine completed. This is no longer necessary, since
blockdev I/O completion operations are now handled by events. Removing
this simplifies the memcpy copy engine implementation significantly.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I4d318bed996694e49946d67baa3c2403d4bbef7a
