diff options
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/chain_mode.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/ring_mode.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 35 |
3 files changed, 21 insertions, 19 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/chain_mode.c b/drivers/net/ethernet/stmicro/stmmac/chain_mode.c index d234ab5..72d282b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/chain_mode.c +++ b/drivers/net/ethernet/stmicro/stmmac/chain_mode.c @@ -51,6 +51,7 @@ static unsigned int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum) priv->hw->desc->prepare_tx_desc(desc, 1, bmax, csum, STMMAC_CHAIN_MODE); while (len != 0) { + priv->tx_skbuff[entry] = NULL; entry = (++priv->cur_tx) % txsize; desc = priv->dma_tx + entry; @@ -62,7 +63,6 @@ static unsigned int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum) priv->hw->desc->prepare_tx_desc(desc, 0, bmax, csum, STMMAC_CHAIN_MODE); priv->hw->desc->set_tx_owner(desc); - priv->tx_skbuff[entry] = NULL; len -= bmax; i++; } else { @@ -73,7 +73,6 @@ static unsigned int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum) priv->hw->desc->prepare_tx_desc(desc, 0, len, csum, STMMAC_CHAIN_MODE); priv->hw->desc->set_tx_owner(desc); - priv->tx_skbuff[entry] = NULL; len = 0; } } diff --git a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c index 1ef9d8a..a96c7c2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c +++ b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c @@ -58,6 +58,7 @@ static unsigned int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum) priv->hw->desc->prepare_tx_desc(desc, 1, bmax, csum, STMMAC_RING_MODE); wmb(); + priv->tx_skbuff[entry] = NULL; entry = (++priv->cur_tx) % txsize; if (priv->extend_desc) @@ -73,7 +74,6 @@ static unsigned int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum) STMMAC_RING_MODE); wmb(); priv->hw->desc->set_tx_owner(desc); - priv->tx_skbuff[entry] = NULL; } else { desc->des2 = dma_map_single(priv->device, skb->data, nopaged_len, DMA_TO_DEVICE); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 0c5c120..5db91be 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -334,7 +334,7 @@ static void stmmac_get_tx_hwtstamp(struct stmmac_priv *priv, return; /* exit if skb doesn't support hw tstamp */ - if (likely(!(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS))) + if (likely(!skb || !(skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS))) return; if (priv->adv_ts) @@ -1081,21 +1081,24 @@ static void dma_free_tx_skbufs(struct stmmac_priv *priv) int i; for (i = 0; i < priv->dma_tx_size; i++) { - if (priv->tx_skbuff[i] != NULL) { - struct dma_desc *p; - if (priv->extend_desc) - p = &((priv->dma_etx + i)->basic); - else - p = priv->dma_tx + i; + struct dma_desc *p; - if (priv->tx_skbuff_dma[i]) - dma_unmap_single(priv->device, - priv->tx_skbuff_dma[i], - priv->hw->desc->get_tx_len(p), - DMA_TO_DEVICE); + if (priv->extend_desc) + p = &((priv->dma_etx + i)->basic); + else + p = priv->dma_tx + i; + + if (priv->tx_skbuff_dma[i]) { + dma_unmap_single(priv->device, + priv->tx_skbuff_dma[i], + priv->hw->desc->get_tx_len(p), + DMA_TO_DEVICE); + priv->tx_skbuff_dma[i] = 0; + } + + if (priv->tx_skbuff[i] != NULL) { dev_kfree_skb_any(priv->tx_skbuff[i]); priv->tx_skbuff[i] = NULL; - priv->tx_skbuff_dma[i] = 0; } } } @@ -1867,8 +1870,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) first = desc; - priv->tx_skbuff[entry] = skb; - /* To program the descriptors according to the size of the frame */ if (priv->mode == STMMAC_RING_MODE) { is_jumbo = priv->hw->ring->is_jumbo_frm(skb->len, @@ -1896,6 +1897,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) const skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; int len = skb_frag_size(frag); + priv->tx_skbuff[entry] = NULL; entry = (++priv->cur_tx) % txsize; if (priv->extend_desc) desc = (struct dma_desc *)(priv->dma_etx + entry); @@ -1905,7 +1907,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) desc->des2 = skb_frag_dma_map(priv->device, frag, 0, len, DMA_TO_DEVICE); priv->tx_skbuff_dma[entry] = desc->des2; - priv->tx_skbuff[entry] = NULL; priv->hw->desc->prepare_tx_desc(desc, 0, len, csum_insertion, priv->mode); wmb(); @@ -1913,6 +1914,8 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev) wmb(); } + priv->tx_skbuff[entry] = skb; + /* Finalize the latest segment. */ priv->hw->desc->close_tx_desc(desc); |