[libata] sata_mv: print out additional chip info during probe

Indicate whether this is a Generation-I (50xx), Generation-II (60xx),
or Generation-II-E (6042/7042) chip.
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/sata_mv.c

@@ -2338,7 +2338,7 @@ static void mv_print_info(struct ata_host *host)
 	struct pci_dev *pdev = to_pci_dev(host->dev);
 	struct mv_host_priv *hpriv = host->private_data;
 	u8 rev_id, scc;
-	const char *scc_s;
+	const char *scc_s, *gen;
 
 	/* Use this to determine the HW stepping of the chip so we know
 	 * what errata to workaround
@@ -2351,11 +2351,20 @@ static void mv_print_info(struct ata_host *host)
 	else if (scc == 0x01)
 		scc_s = "RAID";
 	else
-		scc_s = "unknown";
+		scc_s = "?";
+
+	if (IS_GEN_I(hpriv))
+		gen = "I";
+	else if (IS_GEN_II(hpriv))
+		gen = "II";
+	else if (IS_GEN_IIE(hpriv))
+		gen = "IIE";
+	else
+		gen = "?";
 
 	dev_printk(KERN_INFO, &pdev->dev,
-	       "%u slots %u ports %s mode IRQ via %s\n",
-	       (unsigned)MV_MAX_Q_DEPTH, host->n_ports,
+	       "Gen-%s %u slots %u ports %s mode IRQ via %s\n",
+	       gen, (unsigned)MV_MAX_Q_DEPTH, host->n_ports,
 	       scc_s, (MV_HP_FLAG_MSI & hpriv->hp_flags) ? "MSI" : "INTx");
 }