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| author | Magnus Damm <damm@opensource.se> | 2009-12-15 21:16:55 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-15 23:18:27 -0800 |
| commit | 503914cf4a4b5dbe3f844e0a92f412ae99fde70e (patch) | |
| tree | 1f6435d786ac4bf8330027834aa6c99d6a7ac609 /drivers/net | |
| parent | ca553980432898da5d4125573a9e2aee6ed5d355 (diff) | |
| download | linux-503914cf4a4b5dbe3f844e0a92f412ae99fde70e.tar.gz linux-503914cf4a4b5dbe3f844e0a92f412ae99fde70e.tar.bz2 linux-503914cf4a4b5dbe3f844e0a92f412ae99fde70e.zip | |
net: sh_eth alignment fix for sh7724 using NET_IP_ALIGN V2
Fix sh_eth for sh7724 by adding NET_IP_ALIGN support V2.
Without this patch the receive data is misaligned.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/sh_eth.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index c88bc1013047..ca6285016dfd 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -84,6 +84,8 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .mpr = 1, .tpauser = 1, .hw_swap = 1, + .rpadir = 1, + .rpadir_value = 0x00020000, /* NET_IP_ALIGN assumed to be 2 */ }; #elif defined(CONFIG_CPU_SUBTYPE_SH7763) @@ -175,7 +177,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = { .tpauser = 1, .bculr = 1, .hw_swap = 1, - .rpadir = 1, .no_trimd = 1, .no_ade = 1, }; @@ -501,6 +502,8 @@ static int sh_eth_ring_init(struct net_device *ndev) */ mdp->rx_buf_sz = (ndev->mtu <= 1492 ? PKT_BUF_SZ : (((ndev->mtu + 26 + 7) & ~7) + 2 + 16)); + if (mdp->cd->rpadir) + mdp->rx_buf_sz += NET_IP_ALIGN; /* Allocate RX and TX skb rings */ mdp->rx_skbuff = kmalloc(sizeof(*mdp->rx_skbuff) * RX_RING_SIZE, @@ -715,6 +718,8 @@ static int sh_eth_rx(struct net_device *ndev) pkt_len + 2); skb = mdp->rx_skbuff[entry]; mdp->rx_skbuff[entry] = NULL; + if (mdp->cd->rpadir) + skb_reserve(skb, NET_IP_ALIGN); skb_put(skb, pkt_len); skb->protocol = eth_type_trans(skb, ndev); netif_rx(skb); |