---

yaml --- r: 21254 b: refs/heads/master c: 85b22eb h: refs/heads/master v: v3
git-mirror · Mar 3, 2006 · 09bc9ae · 09bc9ae
1 parent df4bde7
commit 09bc9ae
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Showing 3 changed files with 21 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9f68788856b134f93d9d10b19aa902924c61fc02
+refs/heads/master: 85b22eb632dc75887ba99edad49307a02c2ae7ec
diff --git a/trunk/drivers/net/e1000/e1000_hw.h b/trunk/drivers/net/e1000/e1000_hw.h
@@ -1875,6 +1875,7 @@ struct e1000_hw {
 #define E1000_MANC_TCO_RESET     0x00010000 /* TCO Reset Occurred */
 #define E1000_MANC_RCV_TCO_EN    0x00020000 /* Receive TCO Packets Enabled */
 #define E1000_MANC_REPORT_STATUS 0x00040000 /* Status Reporting Enabled */
+#define E1000_MANC_RCV_ALL       0x00080000 /* Receive All Enabled */
 #define E1000_MANC_BLK_PHY_RST_ON_IDE   0x00040000 /* Block phy resets */
 #define E1000_MANC_EN_MAC_ADDR_FILTER   0x00100000 /* Enable MAC address
                                                     * filtering */
@@ -2036,6 +2037,7 @@ struct e1000_host_command_info {
 #define EEPROM_INIT_CONTROL1_REG      0x000A
 #define EEPROM_INIT_CONTROL2_REG      0x000F
 #define EEPROM_INIT_CONTROL3_PORT_B   0x0014
+#define EEPROM_INIT_3GIO_3            0x001A
 #define EEPROM_INIT_CONTROL3_PORT_A   0x0024
 #define EEPROM_CFG                    0x0012
 #define EEPROM_FLASH_VERSION          0x0032
@@ -2085,6 +2087,9 @@ struct e1000_host_command_info {
 #define EEPROM_WORD0F_ANE        0x0800
 #define EEPROM_WORD0F_SWPDIO_EXT 0x00F0
 
+/* Mask bits for fields in Word 0x1a of the EEPROM */
+#define EEPROM_WORD1A_ASPM_MASK  0x000C
+
 /* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */
 #define EEPROM_SUM 0xBABA
 

diff --git a/trunk/drivers/net/e1000/e1000_main.c b/trunk/drivers/net/e1000/e1000_main.c
@@ -2978,6 +2978,7 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
+	uint16_t eeprom_data = 0;
 
 	if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
 	    (max_frame > MAX_JUMBO_FRAME_SIZE)) {
@@ -2989,12 +2990,25 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu)
 	switch (adapter->hw.mac_type) {
 	case e1000_82542_rev2_0:
 	case e1000_82542_rev2_1:
-	case e1000_82573:
 		if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
 			DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n");
 			return -EINVAL;
 		}
 		break;
+	case e1000_82573:
+		/* only enable jumbo frames if ASPM is disabled completely
+		 * this means both bits must be zero in 0x1A bits 3:2 */
+		e1000_read_eeprom(&adapter->hw, EEPROM_INIT_3GIO_3, 1,
+		                  &eeprom_data);
+		if (eeprom_data & EEPROM_WORD1A_ASPM_MASK) {
+			if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) {
+				DPRINTK(PROBE, ERR,
+			            	"Jumbo Frames not supported.\n");
+				return -EINVAL;
+			}
+			break;
+		}
+		/* fall through to get support */
 	case e1000_82571:
 	case e1000_82572:
 #define MAX_STD_JUMBO_FRAME_SIZE 9234