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[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.
hifive-unleashed-5.1
Jeff Garzik 2005-11-20 03:36:45 -05:00
parent 1b15688b31
commit 656563e32c
1 changed files with 16 additions and 4 deletions
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20
drivers/scsi/libata-core.c
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@ -1444,11 +1444,23 @@ void __sata_phy_reset(struct ata_port *ap)
} 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);
}