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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-03-10 21:59:21 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2013-03-10 21:59:21 +0000
commitfb95b3dfd59d8bfef78d66b34083cab2c489ba2c (patch)
treed73bbdb0173707aa9e9c9e59cce1a1e240ada3ff /target/linux
parent29364253d94fbc702167531f173ceac260af2991 (diff)
cns3xxx: minor ethernet driver cleanup
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35949 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c54
1 files changed, 19 insertions, 35 deletions
diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
index 4bf7a9888..7a5c44cad 100644
--- a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
+++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
@@ -286,8 +286,8 @@ struct sw {
struct switch_regs __iomem *regs;
struct napi_struct napi;
struct cns3xxx_plat_info *plat;
- struct _tx_ring *tx_ring;
- struct _rx_ring *rx_ring;
+ struct _tx_ring tx_ring;
+ struct _rx_ring rx_ring;
struct sk_buff *frag_first;
struct sk_buff *frag_last;
};
@@ -507,7 +507,7 @@ irqreturn_t eth_stat_irq(int irq, void *pdev)
static void cns3xxx_alloc_rx_buf(struct sw *sw, int received)
{
- struct _rx_ring *rx_ring = sw->rx_ring;
+ struct _rx_ring *rx_ring = &sw->rx_ring;
unsigned int i = rx_ring->alloc_index;
struct rx_desc *desc = &(rx_ring)->desc[i];
void *buf;
@@ -579,7 +579,7 @@ static void eth_check_num_used(struct _tx_ring *tx_ring)
static void eth_complete_tx(struct sw *sw)
{
- struct _tx_ring *tx_ring = sw->tx_ring;
+ struct _tx_ring *tx_ring = &sw->tx_ring;
struct tx_desc *desc;
int i;
int index;
@@ -614,7 +614,7 @@ static void eth_complete_tx(struct sw *sw)
static int eth_poll(struct napi_struct *napi, int budget)
{
struct sw *sw = container_of(napi, struct sw, napi);
- struct _rx_ring *rx_ring = sw->rx_ring;
+ struct _rx_ring *rx_ring = &sw->rx_ring;
int received = 0;
unsigned int length;
unsigned int i = rx_ring->cur_index;
@@ -750,7 +750,7 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct port *port = netdev_priv(dev);
struct sw *sw = port->sw;
- struct _tx_ring *tx_ring = sw->tx_ring;
+ struct _tx_ring *tx_ring = &sw->tx_ring;
struct sk_buff *skb1;
char pmap = (1 << port->id);
int nr_frags = skb_shinfo(skb)->nr_frags;
@@ -877,8 +877,8 @@ static struct ethtool_ops cns3xxx_ethtool_ops = {
static int init_rings(struct sw *sw)
{
int i;
- struct _rx_ring *rx_ring = sw->rx_ring;
- struct _tx_ring *tx_ring = sw->tx_ring;
+ struct _rx_ring *rx_ring = &sw->rx_ring;
+ struct _tx_ring *tx_ring = &sw->tx_ring;
__raw_writel(0, &sw->regs->fs_dma_ctrl0);
__raw_writel(TS_SUSPEND | FS_SUSPEND, &sw->regs->dma_auto_poll_cfg);
@@ -950,11 +950,11 @@ static int init_rings(struct sw *sw)
static void destroy_rings(struct sw *sw)
{
int i;
- if (sw->rx_ring->desc) {
+ if (sw->rx_ring.desc) {
for (i = 0; i < RX_DESCS; i++) {
- struct _rx_ring *rx_ring = sw->rx_ring;
+ struct _rx_ring *rx_ring = &sw->rx_ring;
struct rx_desc *desc = &(rx_ring)->desc[i];
- struct sk_buff *skb = sw->rx_ring->buff_tab[i];
+ struct sk_buff *skb = sw->rx_ring.buff_tab[i];
if (!skb)
continue;
@@ -963,26 +963,26 @@ static void destroy_rings(struct sw *sw)
DMA_FROM_DEVICE);
dev_kfree_skb(skb);
}
- dma_pool_free(rx_dma_pool, sw->rx_ring->desc, sw->rx_ring->phys_addr);
+ dma_pool_free(rx_dma_pool, sw->rx_ring.desc, sw->rx_ring.phys_addr);
dma_pool_destroy(rx_dma_pool);
rx_dma_pool = 0;
- sw->rx_ring->desc = 0;
+ sw->rx_ring.desc = 0;
}
- if (sw->tx_ring->desc) {
+ if (sw->tx_ring.desc) {
for (i = 0; i < TX_DESCS; i++) {
- struct _tx_ring *tx_ring = sw->tx_ring;
+ struct _tx_ring *tx_ring = &sw->tx_ring;
struct tx_desc *desc = &(tx_ring)->desc[i];
- struct sk_buff *skb = sw->tx_ring->buff_tab[i];
+ struct sk_buff *skb = sw->tx_ring.buff_tab[i];
if (skb) {
dma_unmap_single(NULL, desc->sdp,
skb->len, DMA_TO_DEVICE);
dev_kfree_skb(skb);
}
}
- dma_pool_free(tx_dma_pool, sw->tx_ring->desc, sw->tx_ring->phys_addr);
+ dma_pool_free(tx_dma_pool, sw->tx_ring.desc, sw->tx_ring.phys_addr);
dma_pool_destroy(tx_dma_pool);
tx_dma_pool = 0;
- sw->tx_ring->desc = 0;
+ sw->tx_ring.desc = 0;
}
}
@@ -1204,22 +1204,10 @@ static int eth_init_one(struct platform_device *pdev)
__raw_writel(UNKNOWN_VLAN_TO_CPU |
CRC_STRIPPING, &sw->regs->mac_glob_cfg);
- if (!(sw->rx_ring = kmalloc(sizeof(struct _rx_ring), GFP_KERNEL))) {
- err = -ENOMEM;
- goto err_free;
- }
- memset(sw->rx_ring, 0, sizeof(struct _rx_ring));
-
- if (!(sw->tx_ring = kmalloc(sizeof(struct _tx_ring), GFP_KERNEL))) {
- err = -ENOMEM;
- goto err_free_rx;
- }
- memset(sw->tx_ring, 0, sizeof(struct _tx_ring));
-
if ((err = init_rings(sw)) != 0) {
destroy_rings(sw);
err = -ENOMEM;
- goto err_free_rings;
+ goto err_free;
}
platform_set_drvdata(pdev, napi_dev);
@@ -1291,10 +1279,6 @@ free_ports:
free_netdev(dev);
}
}
-err_free_rings:
- kfree(sw->tx_ring);
-err_free_rx:
- kfree(sw->rx_ring);
err_free:
free_netdev(napi_dev);
return err;