alistair23-linux/drivers/infiniband
Vu Pham f01b9f7339 iser-target: Avoid using FRMR for single dma entry requests
This patch changes isert_reg_rdma_frwr() to not use FRMR for single
dma entry requests from small I/Os, in order to avoid the associated
memory registration overhead.

Using DMA MR is sufficient here for the single dma entry requests,
and addresses a >= v3.12 performance regression.

Signed-off-by: Vu Pham <vu@mellanox.com>
Cc: <stable@vger.kernel.org> # v3.12+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2013-11-12 13:07:52 -08:00
..
core Main batch of InfiniBand/RDMA changes for 3.12 merge window: 2013-09-05 09:39:27 -07:00
hw Remove GENERIC_HARDIRQ config option 2013-09-13 15:09:52 +02:00
ulp iser-target: Avoid using FRMR for single dma entry requests 2013-11-12 13:07:52 -08:00
Kconfig mlx5: Add driver for Mellanox Connect-IB adapters 2013-07-08 10:32:24 -07:00
Makefile mlx5: Add driver for Mellanox Connect-IB adapters 2013-07-08 10:32:24 -07:00