patch-2.2.11 linux/drivers/net/sunhme.c

• Lines: 18
• Date: Mon Aug 9 12:05:45 1999
• Orig file: v2.2.10/linux/drivers/net/sunhme.c
• Orig date: Sat May 29 11:10:15 1999

diff -u --recursive --new-file v2.2.10/linux/drivers/net/sunhme.c linux/drivers/net/sunhme.c
@@ -3406,7 +3406,16 @@
 	/* Set the latency timer and cache line size as well,
 	 * PROM leaves it at zero.
 	 */
-	pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 128);
+	{
+		unsigned char min_gnt, latency_timer;
+
+		pci_read_config_byte(pdev, PCI_MIN_GNT, &min_gnt);
+		if (min_gnt == 0)
+			latency_timer = 64;
+		else
+			latency_timer = ((min_gnt << 3) & 0xff);
+		pci_write_config_byte(pdev, PCI_LATENCY_TIMER, latency_timer);
+	}
 #ifdef __sparc_v9__
 	/* NOTE: Cache line size is in 32-bit word units. */
 	pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x10);