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| author | Ralph Campbell <ralph.campbell@qlogic.com> | 2006-12-12 23:27:41 +0100 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-12-12 23:27:41 +0100 |
| commit | 9b513090a3c5e4964f9ac09016c1586988abb3d5 (patch) | |
| tree | 8b71e45be3fae1ef83a7a2808141fb02e7160fae /fs | |
| parent | RDMA/cma: Export rdma cm interface to userspace (diff) | |
| download | linux-9b513090a3c5e4964f9ac09016c1586988abb3d5.tar.xz linux-9b513090a3c5e4964f9ac09016c1586988abb3d5.zip | |
IB: Add DMA mapping functions to allow device drivers to interpose
The QLogic InfiniPath HCAs use programmed I/O instead of HW DMA.
This patch allows a verbs device driver to interpose on DMA mapping
function calls in order to avoid relying on bus_to_virt() and
phys_to_virt() to undo the mappings created by dma_map_single(),
dma_map_sg(), etc.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions