diff options
Diffstat (limited to 'drivers/net/ethernet/xilinx/xilinx_axienet_main.c')
-rw-r--r-- | drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 1ec65feebb9e..4bfdf8c7ada0 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c | |||
@@ -26,6 +26,7 @@ | |||
26 | #include <linux/netdevice.h> | 26 | #include <linux/netdevice.h> |
27 | #include <linux/of_mdio.h> | 27 | #include <linux/of_mdio.h> |
28 | #include <linux/of_platform.h> | 28 | #include <linux/of_platform.h> |
29 | #include <linux/of_irq.h> | ||
29 | #include <linux/of_address.h> | 30 | #include <linux/of_address.h> |
30 | #include <linux/skbuff.h> | 31 | #include <linux/skbuff.h> |
31 | #include <linux/spinlock.h> | 32 | #include <linux/spinlock.h> |
@@ -600,7 +601,8 @@ static void axienet_start_xmit_done(struct net_device *ndev) | |||
600 | size += status & XAXIDMA_BD_STS_ACTUAL_LEN_MASK; | 601 | size += status & XAXIDMA_BD_STS_ACTUAL_LEN_MASK; |
601 | packets++; | 602 | packets++; |
602 | 603 | ||
603 | lp->tx_bd_ci = ++lp->tx_bd_ci % TX_BD_NUM; | 604 | ++lp->tx_bd_ci; |
605 | lp->tx_bd_ci %= TX_BD_NUM; | ||
604 | cur_p = &lp->tx_bd_v[lp->tx_bd_ci]; | 606 | cur_p = &lp->tx_bd_v[lp->tx_bd_ci]; |
605 | status = cur_p->status; | 607 | status = cur_p->status; |
606 | } | 608 | } |
@@ -686,7 +688,8 @@ static int axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev) | |||
686 | skb_headlen(skb), DMA_TO_DEVICE); | 688 | skb_headlen(skb), DMA_TO_DEVICE); |
687 | 689 | ||
688 | for (ii = 0; ii < num_frag; ii++) { | 690 | for (ii = 0; ii < num_frag; ii++) { |
689 | lp->tx_bd_tail = ++lp->tx_bd_tail % TX_BD_NUM; | 691 | ++lp->tx_bd_tail; |
692 | lp->tx_bd_tail %= TX_BD_NUM; | ||
690 | cur_p = &lp->tx_bd_v[lp->tx_bd_tail]; | 693 | cur_p = &lp->tx_bd_v[lp->tx_bd_tail]; |
691 | frag = &skb_shinfo(skb)->frags[ii]; | 694 | frag = &skb_shinfo(skb)->frags[ii]; |
692 | cur_p->phys = dma_map_single(ndev->dev.parent, | 695 | cur_p->phys = dma_map_single(ndev->dev.parent, |
@@ -702,7 +705,8 @@ static int axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev) | |||
702 | tail_p = lp->tx_bd_p + sizeof(*lp->tx_bd_v) * lp->tx_bd_tail; | 705 | tail_p = lp->tx_bd_p + sizeof(*lp->tx_bd_v) * lp->tx_bd_tail; |
703 | /* Start the transfer */ | 706 | /* Start the transfer */ |
704 | axienet_dma_out32(lp, XAXIDMA_TX_TDESC_OFFSET, tail_p); | 707 | axienet_dma_out32(lp, XAXIDMA_TX_TDESC_OFFSET, tail_p); |
705 | lp->tx_bd_tail = ++lp->tx_bd_tail % TX_BD_NUM; | 708 | ++lp->tx_bd_tail; |
709 | lp->tx_bd_tail %= TX_BD_NUM; | ||
706 | 710 | ||
707 | return NETDEV_TX_OK; | 711 | return NETDEV_TX_OK; |
708 | } | 712 | } |
@@ -774,7 +778,8 @@ static void axienet_recv(struct net_device *ndev) | |||
774 | cur_p->status = 0; | 778 | cur_p->status = 0; |
775 | cur_p->sw_id_offset = (u32) new_skb; | 779 | cur_p->sw_id_offset = (u32) new_skb; |
776 | 780 | ||
777 | lp->rx_bd_ci = ++lp->rx_bd_ci % RX_BD_NUM; | 781 | ++lp->rx_bd_ci; |
782 | lp->rx_bd_ci %= RX_BD_NUM; | ||
778 | cur_p = &lp->rx_bd_v[lp->rx_bd_ci]; | 783 | cur_p = &lp->rx_bd_v[lp->rx_bd_ci]; |
779 | } | 784 | } |
780 | 785 | ||