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[SCSI] zfcp: enable FCP hardware data router by default

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Enabling the data router support by default
can increase performance in certain situations.
It is safe to do so and tolerated in LPAR and under z/VM
in case there is no data router support in that environment.

Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Reviewed-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Steffen Maier 2013-08-22 17:49:34 +02:00 committed by James Bottomley
parent ff5e5842c3
commit 909ee499c1
1 changed files with 2 additions and 2 deletions
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4
drivers/s390/scsi/zfcp_qdio.c
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@ -16,9 +16,9 @@
#define QBUFF_PER_PAGE (PAGE_SIZE / sizeof(struct qdio_buffer))
static bool enable_multibuffer;
static bool enable_multibuffer = 1;
module_param_named(datarouter, enable_multibuffer, bool, 0400);
MODULE_PARM_DESC(datarouter, "Enable hardware data router support");
MODULE_PARM_DESC(datarouter, "Enable hardware data router support (default on)");
static int zfcp_qdio_buffers_enqueue(struct qdio_buffer **sbal)
{