@@ -50,6 +50,7 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
if (dma_mapping_error(priv->device, desc->des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
+ priv->tx_skbuff_dma[entry].len = bmax;
priv->hw->desc->prepare_tx_desc(desc, 1, bmax, csum, STMMAC_CHAIN_MODE);
while (len != 0) {
@@ -65,6 +66,7 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
if (dma_mapping_error(priv->device, desc->des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
+ priv->tx_skbuff_dma[entry].len = bmax;
priv->hw->desc->prepare_tx_desc(desc, 0, bmax, csum,
STMMAC_CHAIN_MODE);
priv->hw->desc->set_tx_owner(desc);
@@ -77,6 +79,7 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
if (dma_mapping_error(priv->device, desc->des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
+ priv->tx_skbuff_dma[entry].len = len;
priv->hw->desc->prepare_tx_desc(desc, 0, len, csum,
STMMAC_CHAIN_MODE);
priv->hw->desc->set_tx_owner(desc);
@@ -57,6 +57,8 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
+ priv->tx_skbuff_dma[entry].len = bmax;
+
desc->des3 = desc->des2 + BUF_SIZE_4KiB;
priv->hw->desc->prepare_tx_desc(desc, 1, bmax, csum,
STMMAC_RING_MODE);
@@ -75,6 +77,8 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
if (dma_mapping_error(priv->device, desc->des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
+ priv->tx_skbuff_dma[entry].len = len;
+
desc->des3 = desc->des2 + BUF_SIZE_4KiB;
priv->hw->desc->prepare_tx_desc(desc, 0, len, csum,
STMMAC_RING_MODE);
@@ -86,6 +90,7 @@ static int stmmac_jumbo_frm(void *p, struct sk_buff *skb, int csum)
if (dma_mapping_error(priv->device, desc->des2))
return -1;
priv->tx_skbuff_dma[entry].buf = desc->des2;
+ priv->tx_skbuff_dma[entry].len = nopaged_len;
desc->des3 = desc->des2 + BUF_SIZE_4KiB;
priv->hw->desc->prepare_tx_desc(desc, 1, nopaged_len, csum,
STMMAC_RING_MODE);
@@ -45,6 +45,7 @@ struct stmmac_resources {
struct stmmac_tx_info {
dma_addr_t buf;
bool map_as_page;
+ unsigned len;
};
struct stmmac_priv {
@@ -1107,6 +1107,7 @@ static int init_dma_desc_rings(struct net_device *dev, gfp_t flags)
p->des2 = 0;
priv->tx_skbuff_dma[i].buf = 0;
priv->tx_skbuff_dma[i].map_as_page = false;
+ priv->tx_skbuff_dma[i].len = 0;
priv->tx_skbuff[i] = NULL;
}
@@ -1150,12 +1151,12 @@ static void dma_free_tx_skbufs(struct stmmac_priv *priv)
if (priv->tx_skbuff_dma[i].map_as_page)
dma_unmap_page(priv->device,
priv->tx_skbuff_dma[i].buf,
- priv->hw->desc->get_tx_len(p),
+ priv->tx_skbuff_dma[i].len,
DMA_TO_DEVICE);
else
dma_unmap_single(priv->device,
priv->tx_skbuff_dma[i].buf,
- priv->hw->desc->get_tx_len(p),
+ priv->tx_skbuff_dma[i].len,
DMA_TO_DEVICE);
}
@@ -1364,12 +1365,12 @@ static void stmmac_tx_clean(struct stmmac_priv *priv)
if (priv->tx_skbuff_dma[entry].map_as_page)
dma_unmap_page(priv->device,
priv->tx_skbuff_dma[entry].buf,
- priv->hw->desc->get_tx_len(p),
+ priv->tx_skbuff_dma[entry].len,
DMA_TO_DEVICE);
else
dma_unmap_single(priv->device,
priv->tx_skbuff_dma[entry].buf,
- priv->hw->desc->get_tx_len(p),
+ priv->tx_skbuff_dma[entry].len,
DMA_TO_DEVICE);
priv->tx_skbuff_dma[entry].buf = 0;
priv->tx_skbuff_dma[entry].map_as_page = false;
@@ -2009,6 +2010,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
if (dma_mapping_error(priv->device, desc->des2))
goto dma_map_err;
priv->tx_skbuff_dma[entry].buf = desc->des2;
+ priv->tx_skbuff_dma[entry].len = nopaged_len;
priv->hw->desc->prepare_tx_desc(desc, 1, nopaged_len,
csum_insertion, priv->mode);
} else {
@@ -2038,6 +2040,7 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
priv->tx_skbuff_dma[entry].buf = desc->des2;
priv->tx_skbuff_dma[entry].map_as_page = true;
+ priv->tx_skbuff_dma[entry].len = len;
priv->hw->desc->prepare_tx_desc(desc, 0, len, csum_insertion,
priv->mode);
wmb();