mirror of
https://github.com/torvalds/linux.git
synced 2024-12-10 21:21:54 +00:00
fec: use dma_alloc_coherent for descriptor ring
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
6989f5122f
commit
4661e75b9d
@ -186,6 +186,7 @@ struct fec_enet_private {
|
||||
|
||||
/* CPM dual port RAM relative addresses.
|
||||
*/
|
||||
dma_addr_t bd_dma;
|
||||
cbd_t *rx_bd_base; /* Address of Rx and Tx buffers. */
|
||||
cbd_t *tx_bd_base;
|
||||
cbd_t *cur_rx, *cur_tx; /* The next free ring entry */
|
||||
@ -2107,7 +2108,8 @@ int __init fec_enet_init(struct net_device *dev)
|
||||
|
||||
/* Allocate memory for buffer descriptors.
|
||||
*/
|
||||
mem_addr = __get_free_page(GFP_KERNEL);
|
||||
mem_addr = (unsigned long)dma_alloc_coherent(NULL, PAGE_SIZE,
|
||||
&fep->bd_dma, GFP_KERNEL);
|
||||
if (mem_addr == 0) {
|
||||
printk("FEC: allocate descriptor memory failed?\n");
|
||||
return -ENOMEM;
|
||||
@ -2202,8 +2204,9 @@ int __init fec_enet_init(struct net_device *dev)
|
||||
|
||||
/* Set receive and transmit descriptor base.
|
||||
*/
|
||||
fecp->fec_r_des_start = __pa((uint)(fep->rx_bd_base));
|
||||
fecp->fec_x_des_start = __pa((uint)(fep->tx_bd_base));
|
||||
fecp->fec_r_des_start = fep->bd_dma;
|
||||
fecp->fec_x_des_start = (unsigned long)fep->bd_dma + sizeof(cbd_t)
|
||||
* RX_RING_SIZE;
|
||||
|
||||
/* Install our interrupt handlers. This varies depending on
|
||||
* the architecture.
|
||||
@ -2291,8 +2294,9 @@ fec_restart(struct net_device *dev, int duplex)
|
||||
|
||||
/* Set receive and transmit descriptor base.
|
||||
*/
|
||||
fecp->fec_r_des_start = __pa((uint)(fep->rx_bd_base));
|
||||
fecp->fec_x_des_start = __pa((uint)(fep->tx_bd_base));
|
||||
fecp->fec_r_des_start = fep->bd_dma;
|
||||
fecp->fec_x_des_start = (unsigned long)fep->bd_dma + sizeof(cbd_t)
|
||||
* RX_RING_SIZE;
|
||||
|
||||
fep->dirty_tx = fep->cur_tx = fep->tx_bd_base;
|
||||
fep->cur_rx = fep->rx_bd_base;
|
||||
|
Loading…
Reference in New Issue
Block a user