This adds a module parameter that, when set, will prevent
ipr from attaching any SATA devices, and only attach SAS
devices.
Signed-off-by: Brian King <brk...@linux.vnet.ibm.com>
---
drivers/scsi/ipr.c | 7 +++++++
1 file changed, 7 insertions(+)
diff -puN drivers/scsi/ipr.c~ipr_disable_sata_param drivers/scsi/ipr.c
--- linux-2.6.git/drivers/scsi/ipr.c~ipr_disable_sata_param 2016-08-30
20:57:08.611856631 -0500
+++ linux-2.6.git-bjking1/drivers/scsi/ipr.c 2016-08-30 20:57:08.618856526
-0500
@@ -101,6 +101,7 @@ static unsigned int ipr_max_devs = IPR_D
static unsigned int ipr_dual_ioa_raid = 1;
static unsigned int ipr_number_of_msix = 16;
static unsigned int ipr_fast_reboot;
+static unsigned int ipr_sata_disable = 1;
static DEFINE_SPINLOCK(ipr_driver_lock);
/* This table describes the differences between DMA controller chips */
@@ -226,6 +227,8 @@ module_param_named(number_of_msix, ipr_n
MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use
on capable adapters (1 - 16). (default:16)");
module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1
to enable. (default: 0)");
+module_param_named(sata_disable, ipr_sata_disable, int, S_IRUGO);
+MODULE_PARM_DESC(sata_disable, "Disable attaching SATA devices. Set to 1 to
enable. (default: 0)");
MODULE_LICENSE("GPL");
MODULE_VERSION(IPR_DRIVER_VERSION);
@@ -3438,6 +3441,10 @@ restart:
list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
if (res->add_to_ml && ipr_is_gata(res) && !res->sata_port) {
+ if (ipr_sata_disable) {
+ res->add_to_ml = 0;
+ goto restart;
+ }
spin_unlock_irqrestore(ioa_cfg->host->host_lock,
lock_flags);
sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
ap = ata_sas_port_alloc(&ioa_cfg->ata_host,
&sata_port_info, ioa_cfg->host);
_
------------------------------------------------------------------------------
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