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path: root/drivers/scsi/isci/init.c
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Diffstat (limited to 'drivers/scsi/isci/init.c')
-rw-r--r--drivers/scsi/isci/init.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
index 8a34fd9..1047108 100644
--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -122,6 +122,14 @@ unsigned char max_concurr_spinup;
module_param(max_concurr_spinup, byte, 0);
MODULE_PARM_DESC(max_concurr_spinup, "Max concurrent device spinup");
+uint cable_selection_override = CABLE_OVERRIDE_DISABLED;
+module_param(cable_selection_override, uint, 0);
+
+MODULE_PARM_DESC(cable_selection_override,
+ "This field indicates length of the SAS/SATA cable between "
+ "host and device. If any bits > 15 are set (default) "
+ "indicates \"use platform defaults\"");
+
static ssize_t isci_show_id(struct device *dev, struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = container_of(dev, typeof(*shost), shost_dev);
@@ -412,6 +420,14 @@ static struct isci_host *isci_host_alloc(struct pci_dev *pdev, int id)
return NULL;
isci_host->shost = shost;
+ dev_info(&pdev->dev, "%sSCU controller %d: phy 3-0 cables: "
+ "{%s, %s, %s, %s}\n",
+ (is_cable_select_overridden() ? "* " : ""), isci_host->id,
+ lookup_cable_names(decode_cable_selection(isci_host, 3)),
+ lookup_cable_names(decode_cable_selection(isci_host, 2)),
+ lookup_cable_names(decode_cable_selection(isci_host, 1)),
+ lookup_cable_names(decode_cable_selection(isci_host, 0)));
+
err = isci_host_init(isci_host);
if (err)
goto err_shost;
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