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path: root/drivers/net/octeon/octeon_mgmt.c
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Diffstat (limited to 'drivers/net/octeon/octeon_mgmt.c')
-rw-r--r--drivers/net/octeon/octeon_mgmt.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/net/octeon/octeon_mgmt.c b/drivers/net/octeon/octeon_mgmt.c
index 3cf6f62502c8..1fdc7b303a6b 100644
--- a/drivers/net/octeon/octeon_mgmt.c
+++ b/drivers/net/octeon/octeon_mgmt.c
@@ -955,6 +955,7 @@ static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev)
955 int port = p->port; 955 int port = p->port;
956 union mgmt_port_ring_entry re; 956 union mgmt_port_ring_entry re;
957 unsigned long flags; 957 unsigned long flags;
958 int rv = NETDEV_TX_BUSY;
958 959
959 re.d64 = 0; 960 re.d64 = 0;
960 re.s.len = skb->len; 961 re.s.len = skb->len;
@@ -964,15 +965,18 @@ static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev)
964 965
965 spin_lock_irqsave(&p->tx_list.lock, flags); 966 spin_lock_irqsave(&p->tx_list.lock, flags);
966 967
968 if (unlikely(p->tx_current_fill >= ring_max_fill(OCTEON_MGMT_TX_RING_SIZE) - 1)) {
969 spin_unlock_irqrestore(&p->tx_list.lock, flags);
970 netif_stop_queue(netdev);
971 spin_lock_irqsave(&p->tx_list.lock, flags);
972 }
973
967 if (unlikely(p->tx_current_fill >= 974 if (unlikely(p->tx_current_fill >=
968 ring_max_fill(OCTEON_MGMT_TX_RING_SIZE))) { 975 ring_max_fill(OCTEON_MGMT_TX_RING_SIZE))) {
969 spin_unlock_irqrestore(&p->tx_list.lock, flags); 976 spin_unlock_irqrestore(&p->tx_list.lock, flags);
970
971 dma_unmap_single(p->dev, re.s.addr, re.s.len, 977 dma_unmap_single(p->dev, re.s.addr, re.s.len,
972 DMA_TO_DEVICE); 978 DMA_TO_DEVICE);
973 979 goto out;
974 netif_stop_queue(netdev);
975 return NETDEV_TX_BUSY;
976 } 980 }
977 981
978 __skb_queue_tail(&p->tx_list, skb); 982 __skb_queue_tail(&p->tx_list, skb);
@@ -995,8 +999,10 @@ static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev)
995 cvmx_write_csr(CVMX_MIXX_ORING2(port), 1); 999 cvmx_write_csr(CVMX_MIXX_ORING2(port), 1);
996 1000
997 netdev->trans_start = jiffies; 1001 netdev->trans_start = jiffies;
1002 rv = NETDEV_TX_OK;
1003out:
998 octeon_mgmt_update_tx_stats(netdev); 1004 octeon_mgmt_update_tx_stats(netdev);
999 return NETDEV_TX_OK; 1005 return rv;
1000} 1006}
1001 1007
1002#ifdef CONFIG_NET_POLL_CONTROLLER 1008#ifdef CONFIG_NET_POLL_CONTROLLER