tree d05cc34b78a8f2a6b9024b8d45e5e8e50786ee64
parent 38d8879baeb61b6946052739e7c03fa79b3a57f0
author Dan Williams <dan.j.williams@intel.com> 1308345519 -0700
committer Dan Williams <dan.j.williams@intel.com> 1309691091 -0700

isci: preallocate requests

the dma_pool interface is optimized for object_size << page_size which
is not the case with isci_request objects and the dma_pool routines show
up in the top of the profile.

The old io_request_table which tracked whether tci slots were in-flight
or not is replaced with an IREQ_ACTIVE flag per request.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>