[libata] Print out SATA speed, if link is up
Make the SATA phy probe messages a bit more informative.
Note this only applies to drivers that use __sata_phy_reset(),
which excludes some drivers.
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 665ae79..9f27e8d 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1444,11 +1444,23 @@
} while (time_before(jiffies, timeout));
/* TODO: phy layer with polling, timeouts, etc. */
- if (sata_dev_present(ap))
+ sstatus = scr_read(ap, SCR_STATUS);
+ if (sata_dev_present(ap)) {
+ const char *speed;
+ u32 tmp;
+
+ tmp = (sstatus >> 4) & 0xf;
+ if (tmp & (1 << 0))
+ speed = "1.5";
+ else if (tmp & (1 << 1))
+ speed = "3.0";
+ else
+ speed = "<unknown>";
+ printk(KERN_INFO "ata%u: SATA link up %s Gbps (SStatus %X)\n",
+ ap->id, speed, sstatus);
ata_port_probe(ap);
- else {
- sstatus = scr_read(ap, SCR_STATUS);
- printk(KERN_INFO "ata%u: no device found (phy stat %08x)\n",
+ } else {
+ printk(KERN_INFO "ata%u: SATA link down (SStatus %X)\n",
ap->id, sstatus);
ata_port_disable(ap);
}