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author | Amir Vadai <amirv@mellanox.com> | 2013-10-07 11:38:12 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2013-10-08 20:09:50 (GMT) |
commit | 70fbe0794393829d9acd686428d87c27b6f6984b (patch) | |
tree | 1234c7156354dcc2af0e3a7ff80bcb3f9324ffe7 /drivers | |
parent | 2c6221e4a5aab417cb18bef6f1130d1374240258 (diff) | |
download | linux-70fbe0794393829d9acd686428d87c27b6f6984b.tar.xz |
net/mlx4_en: Rename name of mlx4_en_rx_alloc members
Add page prefix to page related members: @size and @offset into
@page_size and @page_offset
CC: Eric Dumazet <edumazet@google.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_rx.c | 40 | ||||
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 4 |
2 files changed, 25 insertions, 19 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index dec455c..066fc27 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -70,14 +70,15 @@ static int mlx4_alloc_pages(struct mlx4_en_priv *priv, put_page(page); return -ENOMEM; } - page_alloc->size = PAGE_SIZE << order; + page_alloc->page_size = PAGE_SIZE << order; page_alloc->page = page; page_alloc->dma = dma; - page_alloc->offset = frag_info->frag_align; + page_alloc->page_offset = frag_info->frag_align; /* Not doing get_page() for each frag is a big win * on asymetric workloads. */ - atomic_set(&page->_count, page_alloc->size / frag_info->frag_stride); + atomic_set(&page->_count, + page_alloc->page_size / frag_info->frag_stride); return 0; } @@ -96,16 +97,19 @@ static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv, for (i = 0; i < priv->num_frags; i++) { frag_info = &priv->frag_info[i]; page_alloc[i] = ring_alloc[i]; - page_alloc[i].offset += frag_info->frag_stride; - if (page_alloc[i].offset + frag_info->frag_stride <= ring_alloc[i].size) + page_alloc[i].page_offset += frag_info->frag_stride; + + if (page_alloc[i].page_offset + frag_info->frag_stride <= + ring_alloc[i].page_size) continue; + if (mlx4_alloc_pages(priv, &page_alloc[i], frag_info, gfp)) goto out; } for (i = 0; i < priv->num_frags; i++) { frags[i] = ring_alloc[i]; - dma = ring_alloc[i].dma + ring_alloc[i].offset; + dma = ring_alloc[i].dma + ring_alloc[i].page_offset; ring_alloc[i] = page_alloc[i]; rx_desc->data[i].addr = cpu_to_be64(dma); } @@ -117,7 +121,7 @@ out: frag_info = &priv->frag_info[i]; if (page_alloc[i].page != ring_alloc[i].page) { dma_unmap_page(priv->ddev, page_alloc[i].dma, - page_alloc[i].size, PCI_DMA_FROMDEVICE); + page_alloc[i].page_size, PCI_DMA_FROMDEVICE); page = page_alloc[i].page; atomic_set(&page->_count, 1); put_page(page); @@ -132,9 +136,10 @@ static void mlx4_en_free_frag(struct mlx4_en_priv *priv, { const struct mlx4_en_frag_info *frag_info = &priv->frag_info[i]; - if (frags[i].offset + frag_info->frag_stride > frags[i].size) - dma_unmap_page(priv->ddev, frags[i].dma, frags[i].size, - PCI_DMA_FROMDEVICE); + if (frags[i].page_offset + frag_info->frag_stride > + frags[i].page_size) + dma_unmap_page(priv->ddev, frags[i].dma, frags[i].page_size, + PCI_DMA_FROMDEVICE); if (frags[i].page) put_page(frags[i].page); @@ -161,7 +166,7 @@ out: page_alloc = &ring->page_alloc[i]; dma_unmap_page(priv->ddev, page_alloc->dma, - page_alloc->size, PCI_DMA_FROMDEVICE); + page_alloc->page_size, PCI_DMA_FROMDEVICE); page = page_alloc->page; atomic_set(&page->_count, 1); put_page(page); @@ -184,10 +189,11 @@ static void mlx4_en_destroy_allocator(struct mlx4_en_priv *priv, i, page_count(page_alloc->page)); dma_unmap_page(priv->ddev, page_alloc->dma, - page_alloc->size, PCI_DMA_FROMDEVICE); - while (page_alloc->offset + frag_info->frag_stride < page_alloc->size) { + page_alloc->page_size, PCI_DMA_FROMDEVICE); + while (page_alloc->page_offset + frag_info->frag_stride < + page_alloc->page_size) { put_page(page_alloc->page); - page_alloc->offset += frag_info->frag_stride; + page_alloc->page_offset += frag_info->frag_stride; } page_alloc->page = NULL; } @@ -478,7 +484,7 @@ static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv, /* Save page reference in skb */ __skb_frag_set_page(&skb_frags_rx[nr], frags[nr].page); skb_frag_size_set(&skb_frags_rx[nr], frag_info->frag_size); - skb_frags_rx[nr].page_offset = frags[nr].offset; + skb_frags_rx[nr].page_offset = frags[nr].page_offset; skb->truesize += frag_info->frag_stride; frags[nr].page = NULL; } @@ -517,7 +523,7 @@ static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv, /* Get pointer to first fragment so we could copy the headers into the * (linear part of the) skb */ - va = page_address(frags[0].page) + frags[0].offset; + va = page_address(frags[0].page) + frags[0].page_offset; if (length <= SMALL_PACKET_SIZE) { /* We are copying all relevant data to the skb - temporarily @@ -645,7 +651,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud dma_sync_single_for_cpu(priv->ddev, dma, sizeof(*ethh), DMA_FROM_DEVICE); ethh = (struct ethhdr *)(page_address(frags[0].page) + - frags[0].offset); + frags[0].page_offset); if (is_multicast_ether_addr(ethh->h_dest)) { struct mlx4_mac_entry *entry; diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index 5e0aa56..bf06e36 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -237,8 +237,8 @@ struct mlx4_en_tx_desc { struct mlx4_en_rx_alloc { struct page *page; dma_addr_t dma; - u32 offset; - u32 size; + u32 page_offset; + u32 page_size; }; struct mlx4_en_tx_ring { |