OpenWrt – Rev 1
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From 1d67040af0144c549f4db8144d2ccc253ff8639c Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Mon, 1 Jul 2013 16:39:28 +0200
Subject: [PATCH 2/2] net: ixp4xx_eth: use parent device for dma allocations
Now that the platfomr device provides a dma_cohorent_mask, use it for
dma operations.
This fixes ethernet on ixp4xx which was broken since 3.7.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
drivers/net/ethernet/xscale/ixp4xx_eth.c | 23 ++++++++++++-----------
1 file changed, 12 insertions(+), 11 deletions(-)
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -656,10 +656,10 @@ static inline void queue_put_desc(unsign
static inline void dma_unmap_tx(struct port *port, struct desc *desc)
{
#ifdef __ARMEB__
- dma_unmap_single(&port->netdev->dev, desc->data,
+ dma_unmap_single(port->netdev->dev.parent, desc->data,
desc->buf_len, DMA_TO_DEVICE);
#else
- dma_unmap_single(&port->netdev->dev, desc->data & ~3,
+ dma_unmap_single(port->netdev->dev.parent, desc->data & ~3,
ALIGN((desc->data & 3) + desc->buf_len, 4),
DMA_TO_DEVICE);
#endif
@@ -725,9 +725,9 @@ static int eth_poll(struct napi_struct *
#ifdef __ARMEB__
if ((skb = netdev_alloc_skb(dev, RX_BUFF_SIZE))) {
- phys = dma_map_single(&dev->dev, skb->data,
+ phys = dma_map_single(dev->dev.parent, skb->data,
RX_BUFF_SIZE, DMA_FROM_DEVICE);
- if (dma_mapping_error(&dev->dev, phys)) {
+ if (dma_mapping_error(dev->dev.parent, phys)) {
dev_kfree_skb(skb);
skb = NULL;
}
@@ -750,10 +750,11 @@ static int eth_poll(struct napi_struct *
#ifdef __ARMEB__
temp = skb;
skb = port->rx_buff_tab[n];
- dma_unmap_single(&dev->dev, desc->data - NET_IP_ALIGN,
+ dma_unmap_single(dev->dev.parent, desc->data - NET_IP_ALIGN,
RX_BUFF_SIZE, DMA_FROM_DEVICE);
#else
- dma_sync_single_for_cpu(&dev->dev, desc->data - NET_IP_ALIGN,
+ dma_sync_single_for_cpu(dev->dev.parent,
+ desc->data - NET_IP_ALIGN,
RX_BUFF_SIZE, DMA_FROM_DEVICE);
memcpy_swab32((u32 *)skb->data, (u32 *)port->rx_buff_tab[n],
ALIGN(NET_IP_ALIGN + desc->pkt_len, 4) / 4);
@@ -872,7 +873,7 @@ static int eth_xmit(struct sk_buff *skb,
memcpy_swab32(mem, (u32 *)((int)skb->data & ~3), bytes / 4);
#endif
- phys = dma_map_single(&dev->dev, mem, bytes, DMA_TO_DEVICE);
+ phys = dma_map_single(dev->dev.parent, mem, bytes, DMA_TO_DEVICE);
if (dma_mapping_error(&dev->dev, phys)) {
dev_kfree_skb(skb);
#ifndef __ARMEB__
@@ -1107,7 +1108,7 @@ static int init_queues(struct port *port
int i;
if (!ports_open) {
- dma_pool = dma_pool_create(DRV_NAME, &port->netdev->dev,
+ dma_pool = dma_pool_create(DRV_NAME, port->netdev->dev.parent,
POOL_ALLOC_SIZE, 32, 0);
if (!dma_pool)
return -ENOMEM;
@@ -1135,9 +1136,9 @@ static int init_queues(struct port *port
data = buff;
#endif
desc->buf_len = MAX_MRU;
- desc->data = dma_map_single(&port->netdev->dev, data,
+ desc->data = dma_map_single(port->netdev->dev.parent, data,
RX_BUFF_SIZE, DMA_FROM_DEVICE);
- if (dma_mapping_error(&port->netdev->dev, desc->data)) {
+ if (dma_mapping_error(port->netdev->dev.parent, desc->data)) {
free_buffer(buff);
return -EIO;
}
@@ -1157,7 +1158,7 @@ static void destroy_queues(struct port *
struct desc *desc = rx_desc_ptr(port, i);
buffer_t *buff = port->rx_buff_tab[i];
if (buff) {
- dma_unmap_single(&port->netdev->dev,
+ dma_unmap_single(port->netdev->dev.parent,
desc->data - NET_IP_ALIGN,
RX_BUFF_SIZE, DMA_FROM_DEVICE);
free_buffer(buff);