90 lines
2.4 KiB
Diff
90 lines
2.4 KiB
Diff
--- a/drivers/net/ethernet/cavium/cns3xxx_eth.c
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+++ b/drivers/net/ethernet/cavium/cns3xxx_eth.c
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@@ -666,6 +666,7 @@ static int eth_xmit(struct sk_buff *skb,
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int nr_frags = skb_shinfo(skb)->nr_frags;
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struct skb_frag_struct *frag;
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unsigned int i;
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+ u32 config0 = 0;
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if (pmap == 8)
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pmap = (1 << 4);
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@@ -691,6 +692,10 @@ static int eth_xmit(struct sk_buff *skb,
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spin_unlock(&tx_lock);
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+ config0 = FORCE_ROUTE;
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+ if (skb->ip_summed == CHECKSUM_PARTIAL)
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+ config0 |= UDP_CHECKSUM | TCP_CHECKSUM;
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+
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if (!nr_frags) {
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tx_desc = &(tx_ring)->desc[index];
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@@ -704,23 +709,14 @@ static int eth_xmit(struct sk_buff *skb,
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tx_ring->phys_tab[index] = phys;
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tx_ring->buff_tab[index] = skb;
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- if (index == TX_DESCS - 1) {
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- tx_desc->config0 = END_OF_RING | FIRST_SEGMENT | LAST_SEGMENT |
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- FORCE_ROUTE | IP_CHECKSUM | UDP_CHECKSUM |
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- TCP_CHECKSUM | len;
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- } else {
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- tx_desc->config0 = FIRST_SEGMENT | LAST_SEGMENT |
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- FORCE_ROUTE | IP_CHECKSUM | UDP_CHECKSUM |
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- TCP_CHECKSUM | len;
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- }
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+ config0 |= FIRST_SEGMENT | LAST_SEGMENT;
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} else {
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- unsigned int config;
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-
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index = ((index + nr_frags) % TX_DESCS);
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tx_desc = &(tx_ring)->desc[index];
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/* fragments */
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for (i = nr_frags; i > 0; i--) {
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+ u32 config;
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void *addr;
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frag = &skb_shinfo(skb)->frags[i-1];
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@@ -735,8 +731,7 @@ static int eth_xmit(struct sk_buff *skb,
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tx_desc->pmap = pmap;
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tx_ring->phys_tab[index] = phys;
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- config = FORCE_ROUTE | IP_CHECKSUM | UDP_CHECKSUM |
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- TCP_CHECKSUM | len;
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+ config = config0 | len;
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if (i == nr_frags) {
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config |= LAST_SEGMENT;
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tx_ring->buff_tab[index] = skb;
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@@ -757,24 +752,19 @@ static int eth_xmit(struct sk_buff *skb,
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/* header */
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len = skb->len - skb->data_len;
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- phys = dma_map_single(NULL, skb->data, len,
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- DMA_TO_DEVICE);
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+ phys = dma_map_single(NULL, skb->data, len, DMA_TO_DEVICE);
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tx_desc->sdp = phys;
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tx_desc->pmap = pmap;
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tx_ring->phys_tab[index] = phys;
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-
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- if (index == TX_DESCS - 1) {
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- tx_desc->config0 = END_OF_RING | FIRST_SEGMENT |
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- FORCE_ROUTE | IP_CHECKSUM | UDP_CHECKSUM |
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- TCP_CHECKSUM | len;
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- } else {
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- tx_desc->config0 = FIRST_SEGMENT |
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- FORCE_ROUTE | IP_CHECKSUM | UDP_CHECKSUM |
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- TCP_CHECKSUM | len;
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- }
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+ config0 |= FIRST_SEGMENT;
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}
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+ if (index == TX_DESCS - 1)
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+ config0 |= END_OF_RING;
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+
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+ tx_desc->config0 = config0 | len;
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+
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mb();
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spin_lock(&tx_lock);
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