Merge libata branch 'chs-support' to latest upstream kernel.

[linux-2.6] / drivers / net / mv643xx_eth.c

diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 0405e1f0d3df183fe004173091aed6ca103751e4..fb6b232069d6c43066fbb6f9d7b7244b8770d496 100644 (file)
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -1157,16 +1157,20 @@ static int mv643xx_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
        if (!skb_shinfo(skb)->nr_frags) {
 linear:
                if (skb->ip_summed != CHECKSUM_HW) {
+                       /* Errata BTS #50, IHL must be 5 if no HW checksum */
                        pkt_info.cmd_sts = ETH_TX_ENABLE_INTERRUPT |
-                                       ETH_TX_FIRST_DESC | ETH_TX_LAST_DESC;
+                                          ETH_TX_FIRST_DESC |
+                                          ETH_TX_LAST_DESC |
+                                          5 << ETH_TX_IHL_SHIFT;
                        pkt_info.l4i_chk = 0;
                } else {
-                       u32 ipheader = skb->nh.iph->ihl << 11;
 
                        pkt_info.cmd_sts = ETH_TX_ENABLE_INTERRUPT |
-                                       ETH_TX_FIRST_DESC | ETH_TX_LAST_DESC |
-                                       ETH_GEN_TCP_UDP_CHECKSUM |
-                                       ETH_GEN_IP_V_4_CHECKSUM | ipheader;
+                                          ETH_TX_FIRST_DESC |
+                                          ETH_TX_LAST_DESC |
+                                          ETH_GEN_TCP_UDP_CHECKSUM |
+                                          ETH_GEN_IP_V_4_CHECKSUM |
+                                          skb->nh.iph->ihl << ETH_TX_IHL_SHIFT;
                        /* CPU already calculated pseudo header checksum. */
                        if (skb->nh.iph->protocol == IPPROTO_UDP) {
                                pkt_info.cmd_sts |= ETH_UDP_FRAME;
@@ -1193,7 +1197,6 @@ linear:
                stats->tx_bytes += pkt_info.byte_cnt;
        } else {
                unsigned int frag;
-               u32 ipheader;
 
                /* Since hardware can't handle unaligned fragments smaller
                 * than 9 bytes, if we find any, we linearize the skb
@@ -1222,12 +1225,16 @@ linear:
                                                        DMA_TO_DEVICE);
                pkt_info.l4i_chk = 0;
                pkt_info.return_info = 0;
-               pkt_info.cmd_sts = ETH_TX_FIRST_DESC;
 
-               if (skb->ip_summed == CHECKSUM_HW) {
-                       ipheader = skb->nh.iph->ihl << 11;
-                       pkt_info.cmd_sts |= ETH_GEN_TCP_UDP_CHECKSUM |
-                                       ETH_GEN_IP_V_4_CHECKSUM | ipheader;
+               if (skb->ip_summed != CHECKSUM_HW)
+                       /* Errata BTS #50, IHL must be 5 if no HW checksum */
+                       pkt_info.cmd_sts = ETH_TX_FIRST_DESC |
+                                          5 << ETH_TX_IHL_SHIFT;
+               else {
+                       pkt_info.cmd_sts = ETH_TX_FIRST_DESC |
+                                          ETH_GEN_TCP_UDP_CHECKSUM |
+                                          ETH_GEN_IP_V_4_CHECKSUM |
+                                          skb->nh.iph->ihl << ETH_TX_IHL_SHIFT;
                        /* CPU already calculated pseudo header checksum. */
                        if (skb->nh.iph->protocol == IPPROTO_UDP) {
                                pkt_info.cmd_sts |= ETH_UDP_FRAME;