linux/drivers/infiniband/ulp
Sagi Grimberg dd0107a089 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 <sagig@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-10-28 12:26:06 -04:00
..
ipoib IB/core: Add netdev and gid attributes paramteres to cache 2015-10-21 23:48:17 -04:00
iser IB/iser: set block queue_virt_boundary 2015-10-28 12:26:06 -04:00
isert iser-target: Remove an unused variable 2015-10-22 18:37:47 -04:00
srp IB/core: Add netdev and gid attributes paramteres to cache 2015-10-21 23:48:17 -04:00
srpt IB/core: Add netdev and gid attributes paramteres to cache 2015-10-21 23:48:17 -04:00
Makefile IB: Allow build of hw/ and ulp/ subdirectories independently 2014-06-02 14:51:12 -07:00