diff options
| author | Sagi Grimberg <[email protected]> | 2015-10-13 19:12:58 +0300 |
|---|---|---|
| committer | Doug Ledford <[email protected]> | 2015-10-28 12:26:06 -0400 |
| commit | dd0107a08996c0ab8cac2b98ddbed5313e118e81 (patch) | |
| tree | 1248e196a4cfc38d3c06b736171249e395e19fe7 /tools/perf/util/trace-event-scripting.c | |
| parent | 6c760b3dd576329e776b353f2eaefbe2034361b9 (diff) | |
IB/iser: set block queue_virt_boundary
The block layer can reliably guarantee that SG lists won't
contain gaps (page unaligned) if a driver set the queue
virt_boundary.
With this setting the block layer will:
- refuse merges if bios are not aligned to the virtual boundary
- split bios/requests that are not aligned to the virtual boundary
- or, bounce buffer SG_IOs that are not aligned to the virtual boundary
Since iser is working in 4K page size, set the virt_boundary to
4K pages. With this setting, we can now safely remove the bounce
buffering logic in iser.
Signed-off-by: Sagi Grimberg <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions