diff options
Diffstat (limited to 'drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c')
-rw-r--r-- | drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 69 |
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; |