atl1: fix vlan tag regression
authorJay Cliburn <jacliburn@bellsouth.net>
Wed, 29 Oct 2008 16:01:36 +0000 (11:01 -0500)
committerJeff Garzik <jgarzik@redhat.com>
Fri, 31 Oct 2008 04:46:34 +0000 (00:46 -0400)
Commit 401c0aabec4b97320f962a0161a846d230a6f7aa introduced a regression
in the atl1 driver by storing the VLAN tag in the wrong TX descriptor
field.

This patch causes the VLAN tag to be stored in its proper location.

Tested-by: Ramon Casellas <ramon.casellas@cttc.es>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/net/atlx/atl1.c
drivers/net/atlx/atl1.h

index 3cf59a7..246d92b 100644 (file)
@@ -2310,7 +2310,8 @@ static void atl1_tx_queue(struct atl1_adapter *adapter, u16 count,
                if (tpd != ptpd)
                        memcpy(tpd, ptpd, sizeof(struct tx_packet_desc));
                tpd->buffer_addr = cpu_to_le64(buffer_info->dma);
-               tpd->word2 = (cpu_to_le16(buffer_info->length) &
+               tpd->word2 &= ~(TPD_BUFLEN_MASK << TPD_BUFLEN_SHIFT);
+               tpd->word2 |= (cpu_to_le16(buffer_info->length) &
                        TPD_BUFLEN_MASK) << TPD_BUFLEN_SHIFT;
 
                /*
@@ -2409,8 +2410,8 @@ static int atl1_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
                vlan_tag = (vlan_tag << 4) | (vlan_tag >> 13) |
                        ((vlan_tag >> 9) & 0x8);
                ptpd->word3 |= 1 << TPD_INS_VL_TAG_SHIFT;
-               ptpd->word3 |= (vlan_tag & TPD_VL_TAGGED_MASK) <<
-                       TPD_VL_TAGGED_SHIFT;
+               ptpd->word2 |= (vlan_tag & TPD_VLANTAG_MASK) <<
+                       TPD_VLANTAG_SHIFT;
        }
 
        tso = atl1_tso(adapter, skb, ptpd);
index a5015b1..ffa73fc 100644 (file)
@@ -504,7 +504,7 @@ struct rx_free_desc {
 #define TPD_PKTNT_MASK         0x0001
 #define TPD_PKTINT_SHIFT       15
 #define TPD_VLANTAG_MASK       0xFFFF
-#define TPD_VLAN_SHIFT         16
+#define TPD_VLANTAG_SHIFT      16
 
 /* tpd word 3 bits 0:13 */
 #define TPD_EOP_MASK           0x0001