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brcm47xx: bgmac: omit the fcs 

This fixes #13058 and hopefully #12927


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35834 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Hauke Mehrtens 2013-02-28 13:27:21 +00:00
parent 131abb7401
commit f425635b16
2 changed files with 38 additions and 0 deletions
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19
target/linux/brcm47xx/patches-3.6/765-bgmac-omit-the-fcs.patch Normal file
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@ -0,0 +1,19 @@
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -301,12 +301,16 @@ static int bgmac_dma_rx_read(struct bgma
bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n",
ring->start);
} else {
+ /* Omit CRC. */
+ len -= ETH_FCS_LEN;
+
new_skb = netdev_alloc_skb_ip_align(bgmac->net_dev, len);
if (new_skb) {
skb_put(new_skb, len);
skb_copy_from_linear_data_offset(skb, BGMAC_RX_FRAME_OFFSET,
new_skb->data,
len);
+ skb_checksum_none_assert(skb);
new_skb->protocol =
eth_type_trans(new_skb, bgmac->net_dev);
netif_receive_skb(new_skb);

19
target/linux/brcm47xx/patches-3.8/765-bgmac-omit-the-fcs.patch Normal file
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@ -0,0 +1,19 @@
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -301,12 +301,16 @@ static int bgmac_dma_rx_read(struct bgma
bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n",
ring->start);
} else {
+ /* Omit CRC. */
+ len -= ETH_FCS_LEN;
+
new_skb = netdev_alloc_skb_ip_align(bgmac->net_dev, len);
if (new_skb) {
skb_put(new_skb, len);
skb_copy_from_linear_data_offset(skb, BGMAC_RX_FRAME_OFFSET,
new_skb->data,
len);
+ skb_checksum_none_assert(skb);
new_skb->protocol =
eth_type_trans(new_skb, bgmac->net_dev);
netif_receive_skb(new_skb);