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path: root/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
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Diffstat (limited to 'drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c')
-rw-r--r--drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c69
1 files changed, 48 insertions, 21 deletions
diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
index b1a271853d85..c8a01ee4d25e 100644
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c
@@ -133,9 +133,8 @@ bool sxgbe_eee_init(struct sxgbe_priv_data * const priv)
return false;
priv->eee_active = 1;
- init_timer(&priv->eee_ctrl_timer);
- priv->eee_ctrl_timer.function = sxgbe_eee_ctrl_timer;
- priv->eee_ctrl_timer.data = (unsigned long)priv;
+ setup_timer(&priv->eee_ctrl_timer, sxgbe_eee_ctrl_timer,
+ (unsigned long)priv);
priv->eee_ctrl_timer.expires = SXGBE_LPI_TIMER(eee_timer);
add_timer(&priv->eee_ctrl_timer);
@@ -365,6 +364,26 @@ static int sxgbe_init_rx_buffers(struct net_device *dev,
return 0;
}
+
+/**
+ * sxgbe_free_rx_buffers - free what sxgbe_init_rx_buffers() allocated
+ * @dev: net device structure
+ * @rx_ring: ring to be freed
+ * @rx_rsize: ring size
+ * Description: this function initializes the DMA RX descriptor
+ */
+static void sxgbe_free_rx_buffers(struct net_device *dev,
+ struct sxgbe_rx_norm_desc *p, int i,
+ unsigned int dma_buf_sz,
+ struct sxgbe_rx_queue *rx_ring)
+{
+ struct sxgbe_priv_data *priv = netdev_priv(dev);
+
+ kfree_skb(rx_ring->rx_skbuff[i]);
+ dma_unmap_single(priv->device, rx_ring->rx_skbuff_dma[i],
+ dma_buf_sz, DMA_FROM_DEVICE);
+}
+
/**
* init_tx_ring - init the TX descriptor ring
* @dev: net device structure
@@ -457,7 +476,7 @@ static int init_rx_ring(struct net_device *dev, u8 queue_no,
/* RX ring is not allcoated */
if (rx_ring == NULL) {
netdev_err(dev, "No memory for RX queue\n");
- goto error;
+ return -ENOMEM;
}
/* assign queue number */
@@ -469,23 +488,21 @@ static int init_rx_ring(struct net_device *dev, u8 queue_no,
&rx_ring->dma_rx_phy, GFP_KERNEL);
if (rx_ring->dma_rx == NULL)
- goto error;
+ return -ENOMEM;
/* allocate memory for RX skbuff array */
rx_ring->rx_skbuff_dma = kmalloc_array(rx_rsize,
sizeof(dma_addr_t), GFP_KERNEL);
if (!rx_ring->rx_skbuff_dma) {
- dma_free_coherent(priv->device,
- rx_rsize * sizeof(struct sxgbe_rx_norm_desc),
- rx_ring->dma_rx, rx_ring->dma_rx_phy);
- goto error;
+ ret = -ENOMEM;
+ goto err_free_dma_rx;
}
rx_ring->rx_skbuff = kmalloc_array(rx_rsize,
sizeof(struct sk_buff *), GFP_KERNEL);
if (!rx_ring->rx_skbuff) {
- kfree(rx_ring->rx_skbuff_dma);
- goto error;
+ ret = -ENOMEM;
+ goto err_free_skbuff_dma;
}
/* initialise the buffers */
@@ -495,7 +512,7 @@ static int init_rx_ring(struct net_device *dev, u8 queue_no,
ret = sxgbe_init_rx_buffers(dev, p, desc_index,
bfsize, rx_ring);
if (ret)
- goto err_init_rx_buffers;
+ goto err_free_rx_buffers;
}
/* initalise counters */
@@ -505,11 +522,22 @@ static int init_rx_ring(struct net_device *dev, u8 queue_no,
return 0;
-err_init_rx_buffers:
- while (--desc_index >= 0)
- free_rx_ring(priv->device, rx_ring, desc_index);
-error:
- return -ENOMEM;
+err_free_rx_buffers:
+ while (--desc_index >= 0) {
+ struct sxgbe_rx_norm_desc *p;
+
+ p = rx_ring->dma_rx + desc_index;
+ sxgbe_free_rx_buffers(dev, p, desc_index, bfsize, rx_ring);
+ }
+ kfree(rx_ring->rx_skbuff);
+err_free_skbuff_dma:
+ kfree(rx_ring->rx_skbuff_dma);
+err_free_dma_rx:
+ dma_free_coherent(priv->device,
+ rx_rsize * sizeof(struct sxgbe_rx_norm_desc),
+ rx_ring->dma_rx, rx_ring->dma_rx_phy);
+
+ return ret;
}
/**
* free_tx_ring - free the TX descriptor ring
@@ -1008,10 +1036,9 @@ static void sxgbe_tx_init_coalesce(struct sxgbe_priv_data *priv)
struct sxgbe_tx_queue *p = priv->txq[queue_num];
p->tx_coal_frames = SXGBE_TX_FRAMES;
p->tx_coal_timer = SXGBE_COAL_TX_TIMER;
- init_timer(&p->txtimer);
+ setup_timer(&p->txtimer, sxgbe_tx_timer,
+ (unsigned long)&priv->txq[queue_num]);
p->txtimer.expires = SXGBE_COAL_TIMER(p->tx_coal_timer);
- p->txtimer.data = (unsigned long)&priv->txq[queue_num];
- p->txtimer.function = sxgbe_tx_timer;
add_timer(&p->txtimer);
}
}
@@ -1273,7 +1300,7 @@ static netdev_tx_t sxgbe_xmit(struct sk_buff *skb, struct net_device *dev)
if (unlikely(skb_is_gso(skb) && tqueue->prev_mss != cur_mss))
ctxt_desc_req = 1;
- if (unlikely(vlan_tx_tag_present(skb) ||
+ if (unlikely(skb_vlan_tag_present(skb) ||
((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
tqueue->hwts_tx_en)))
ctxt_desc_req = 1;