tree 71e6410e14c4c285ce128e99070a38ded75a14f7
parent d0a9d25cdcd511dd523357bc902979220dc72a2e
author Michael S. Tsirkin <mst@mellanox.co.il> 1113690390 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1113690390 -0700

[PATCH] IB/mthca: add fast memory region implementation

Implement fast memory regions (FMRs), where the driver writes directly into
the HCA's translation tables rather than requiring a firmware command.  For
Tavor, MTTs for FMR are separate from regular MTTs, and are reserved at driver
initialization.  This is done to limit the amount of virtual memory needed to
map the MTTs.  For Arbel, there's no such limitation, and all MTTs and MPTs
may be used for FMR or for regular MR.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>