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Commit 41efea5a authored by Yevgeny Petrilin's avatar Yevgeny Petrilin Committed by David S. Miller
Browse files

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: default avatarYevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 33a2a2b4

drivers/net/mlx4/en_tx.c

+33 −26
Original line number Original line Diff line number Diff line
@@ -203,6 +203,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, 




	/* Optimize the common case when there are no wraparounds */

	/* Optimize the common case when there are no wraparounds */

	if (likely((void *) tx_desc + tx_info->nr_txbb * TXBB_SIZE <= end)) {

	if (likely((void *) tx_desc + tx_info->nr_txbb * TXBB_SIZE <= end)) {

		if (!tx_info->inl) {

			if (tx_info->linear) {

			if (tx_info->linear) {

				pci_unmap_single(mdev->pdev,

				pci_unmap_single(mdev->pdev,

					(dma_addr_t) be64_to_cpu(data->addr),

					(dma_addr_t) be64_to_cpu(data->addr),
@@ -217,6 +218,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, 
					(dma_addr_t) be64_to_cpu(data[i].addr),

					(dma_addr_t) be64_to_cpu(data[i].addr),

					frag->size, PCI_DMA_TODEVICE);

					frag->size, PCI_DMA_TODEVICE);

			}

			}

		}

		/* Stamp the freed descriptor */

		/* Stamp the freed descriptor */

		for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {

		for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {

			*ptr = stamp;

			*ptr = stamp;
@@ -224,6 +226,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, 
		}

		}





	} else {

	} else {

		if (!tx_info->inl) {

			if ((void *) data >= end) {

			if ((void *) data >= end) {

				data = (struct mlx4_wqe_data_seg *)

				data = (struct mlx4_wqe_data_seg *)

						(ring->buf + ((void *) data - end));

						(ring->buf + ((void *) data - end));
@@ -246,6 +249,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv, 
					(dma_addr_t) be64_to_cpu(data->addr),

					(dma_addr_t) be64_to_cpu(data->addr),

					 frag->size, PCI_DMA_TODEVICE);

					 frag->size, PCI_DMA_TODEVICE);

			}

			}

		}

		/* Stamp the freed descriptor */

		/* Stamp the freed descriptor */

		for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {

		for (i = 0; i < tx_info->nr_txbb * TXBB_SIZE; i += STAMP_STRIDE) {

			*ptr = stamp;

			*ptr = stamp;
@@ -790,8 +794,11 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) 
			wmb();

			wmb();

			data->byte_count = cpu_to_be32(skb_headlen(skb) - lso_header_size);

			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);

		build_inline_wqe(tx_desc, skb, real_size, &vlan_tag, tx_ind, fragptr);

		tx_info->inl = 1;

	}





	ring->prod += nr_txbb;

	ring->prod += nr_txbb;

drivers/net/mlx4/mlx4_en.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -202,6 +202,7 @@ struct mlx4_en_tx_info { 
	u32 nr_txbb;

	u32 nr_txbb;

	u8 linear;

	u8 linear;

	u8 data_offset;

	u8 data_offset;

	u8 inl;

};

};