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| author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2009-01-08 10:57:15 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-01-08 10:57:15 -0800 |
| commit | 41efea5a34caa76c11e56458db21eb259d5c6384 (patch) | |
| tree | 4c914132408c03f448333e8714d042827a5637bb /drivers/net/mlx4 | |
| parent | 33a2a2b4c7076fc3ff1ee77d2376723dd12df44d (diff) | |
| download | linux-41efea5a34caa76c11e56458db21eb259d5c6384.tar.gz linux-41efea5a34caa76c11e56458db21eb259d5c6384.tar.bz2 linux-41efea5a34caa76c11e56458db21eb259d5c6384.zip | |
mlx4_en: Consider inline packets on completion
Was trying to unmap work queue entries that had inline packets,
so naturally weren't mapped.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mlx4')
| -rw-r--r-- | drivers/net/mlx4/en_tx.c | 59 | ||||
| -rw-r--r-- | drivers/net/mlx4/mlx4_en.h | 1 |
2 files changed, 34 insertions, 26 deletions
diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c index ff4d75205c25..4afd5993e31c 100644 --- a/drivers/net/mlx4/en_tx.c +++ b/drivers/net/mlx4/en_tx.c @@ -203,19 +203,21 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, /* Optimize the common case when there are no wraparounds */ if (likely((void *) tx_desc + tx_info->nr_txbb * TXBB_SIZE <= end)) { - if (tx_info->linear) { - pci_unmap_single(mdev->pdev, - (dma_addr_t) be64_to_cpu(data->addr), + if (!tx_info->inl) { + if (tx_info->linear) { + pci_unmap_single(mdev->pdev, + (dma_addr_t) be64_to_cpu(data->addr), be32_to_cpu(data->byte_count), PCI_DMA_TODEVICE); - ++data; - } + ++data; + } - for (i = 0; i < frags; i++) { - frag = &skb_shinfo(skb)->frags[i]; - pci_unmap_page(mdev->pdev, - (dma_addr_t) be64_to_cpu(data[i].addr), - frag->size, PCI_DMA_TODEVICE); + for (i = 0; i < frags; i++) { + frag = &skb_shinfo(skb)->frags[i]; + pci_unmap_page(mdev->pdev, + (dma_addr_t) be64_to_cpu(data[i].addr), + frag->size, PCI_DMA_TODEVICE); + } } /* Stamp the freed descriptor */ for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) { @@ -224,27 +226,29 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, } } else { - if ((void *) data >= end) { - data = (struct mlx4_wqe_data_seg *) - (ring->buf + ((void *) data - end)); - } + if (!tx_info->inl) { + if ((void *) data >= end) { + data = (struct mlx4_wqe_data_seg *) + (ring->buf + ((void *) data - end)); + } - if (tx_info->linear) { - pci_unmap_single(mdev->pdev, - (dma_addr_t) be64_to_cpu(data->addr), + if (tx_info->linear) { + pci_unmap_single(mdev->pdev, + (dma_addr_t) be64_to_cpu(data->addr), be32_to_cpu(data->byte_count), PCI_DMA_TODEVICE); - ++data; - } + ++data; + } - for (i = 0; i < frags; i++) { - /* Check for wraparound before unmapping */ - if ((void *) data >= end) - data = (struct mlx4_wqe_data_seg *) ring->buf; - frag = &skb_shinfo(skb)->frags[i]; - pci_unmap_page(mdev->pdev, + for (i = 0; i < frags; i++) { + /* Check for wraparound before unmapping */ + if ((void *) data >= end) + data = (struct mlx4_wqe_data_seg *) ring->buf; + frag = &skb_shinfo(skb)->frags[i]; + pci_unmap_page(mdev->pdev, (dma_addr_t) be64_to_cpu(data->addr), frag->size, PCI_DMA_TODEVICE); + } } /* Stamp the freed descriptor */ for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) { @@ -790,8 +794,11 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) wmb(); data->byte_count = cpu_to_be32(skb_headlen(skb) - lso_header_size); } - } else + tx_info->inl = 0; + } else { build_inline_wqe(tx_desc, skb, real_size, &vlan_tag, tx_ind, fragptr); + tx_info->inl = 1; + } ring->prod += nr_txbb; diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h index 2e96c7b2180a..08bf321a9e62 100644 --- a/drivers/net/mlx4/mlx4_en.h +++ b/drivers/net/mlx4/mlx4_en.h @@ -202,6 +202,7 @@ struct mlx4_en_tx_info { u32 nr_txbb; u8 linear; u8 data_offset; + u8 inl; }; |