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net: sh_eth: fix TX/RX descriptor not set physical memory

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Fix the probrem that TX/RX descirptor not set physical memory.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yoshihiro Shimoda 2009-05-24 23:53:20 +00:00 committed by David S. Miller
parent e88aae7bb1
commit 0029d64af5
1 changed files with 12 additions and 23 deletions
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35
drivers/net/sh_eth.c
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@ -263,26 +263,20 @@ static void sh_eth_ring_format(struct net_device *ndev)
#endif
/* RX descriptor */
rxdesc = &mdp->rx_ring[i];
rxdesc->addr = (u32)skb->data & ~0x3UL;
rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4));
rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP);
/* The size of the buffer is 16 byte boundary. */
rxdesc->buffer_length = (mdp->rx_buf_sz + 16) & ~0x0F;
rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16);
/* Rx descriptor address set */
if (i == 0) {
ctrl_outl((u32)rxdesc, ioaddr + RDLAR);
ctrl_outl(mdp->rx_desc_dma, ioaddr + RDLAR);
#if defined(CONFIG_CPU_SUBTYPE_SH7763)
ctrl_outl((u32)rxdesc, ioaddr + RDFAR);
ctrl_outl(mdp->rx_desc_dma, ioaddr + RDFAR);
#endif
}
}
/* Rx descriptor address set */
#if defined(CONFIG_CPU_SUBTYPE_SH7763)
ctrl_outl((u32)rxdesc, ioaddr + RDFXR);
ctrl_outl(0x1, ioaddr + RDFFR);
#endif
mdp->dirty_rx = (u32) (i - RX_RING_SIZE);
/* Mark the last entry as wrapping the ring. */
@ -298,19 +292,13 @@ static void sh_eth_ring_format(struct net_device *ndev)
txdesc->buffer_length = 0;
if (i == 0) {
/* Tx descriptor address set */
ctrl_outl((u32)txdesc, ioaddr + TDLAR);
ctrl_outl(mdp->tx_desc_dma, ioaddr + TDLAR);
#if defined(CONFIG_CPU_SUBTYPE_SH7763)
ctrl_outl((u32)txdesc, ioaddr + TDFAR);
ctrl_outl(mdp->tx_desc_dma, ioaddr + TDFAR);
#endif
}
}
/* Tx descriptor address set */
#if defined(CONFIG_CPU_SUBTYPE_SH7763)
ctrl_outl((u32)txdesc, ioaddr + TDFXR);
ctrl_outl(0x1, ioaddr + TDFFR);
#endif
txdesc->status |= cpu_to_edmac(mdp, TD_TDLE);
}
@ -536,7 +524,8 @@ static int sh_eth_rx(struct net_device *ndev)
if (desc_status & RD_RFS10)
mdp->stats.rx_over_errors++;
} else {
swaps((char *)(rxdesc->addr & ~0x3), pkt_len + 2);
swaps(phys_to_virt(ALIGN(rxdesc->addr, 4)),
pkt_len + 2);
skb = mdp->rx_skbuff[entry];
mdp->rx_skbuff[entry] = NULL;
skb_put(skb, pkt_len);
@ -554,7 +543,7 @@ static int sh_eth_rx(struct net_device *ndev)
entry = mdp->dirty_rx % RX_RING_SIZE;
rxdesc = &mdp->rx_ring[entry];
/* The size of the buffer is 16 byte boundary. */
rxdesc->buffer_length = (mdp->rx_buf_sz + 16) & ~0x0F;
rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16);
if (mdp->rx_skbuff[entry] == NULL) {
skb = dev_alloc_skb(mdp->rx_buf_sz);
@ -573,7 +562,7 @@ static int sh_eth_rx(struct net_device *ndev)
skb_reserve(skb, RX_OFFSET);
#endif
skb->ip_summed = CHECKSUM_NONE;
rxdesc->addr = (u32)skb->data & ~0x3UL;
rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4));
}
if (entry >= RX_RING_SIZE - 1)
rxdesc->status |=
@ -959,9 +948,9 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
entry = mdp->cur_tx % TX_RING_SIZE;
mdp->tx_skbuff[entry] = skb;
txdesc = &mdp->tx_ring[entry];
txdesc->addr = (u32)(skb->data);
txdesc->addr = virt_to_phys(skb->data);
/* soft swap. */
swaps((char *)(txdesc->addr & ~0x3), skb->len + 2);
swaps(phys_to_virt(ALIGN(txdesc->addr, 4)), skb->len + 2);
/* write back */
__flush_purge_region(skb->data, skb->len);
if (skb->len < ETHERSMALL)