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Commit 909ee499 authored by Steffen Maier's avatar Steffen Maier Committed by James Bottomley
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[SCSI] zfcp: enable FCP hardware data router by default 



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: default avatarSteffen Maier <maier@linux.vnet.ibm.com>
Reviewed-by: default avatarMartin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent ff5e5842

drivers/s390/scsi/zfcp_qdio.c

+2 −2
Original line number Diff line number Diff line
@@ -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)

{