From 909ee499c1c85e99ed3f9e99caf13a89f4de3d3a Mon Sep 17 00:00:00 2001 From: Steffen Maier Date: Thu, 22 Aug 2013 17:49:34 +0200 Subject: [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: Steffen Maier Reviewed-by: Martin Peschke Signed-off-by: James Bottomley diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index 665e3cf..f84fc1c 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -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) { -- cgit v0.10.2