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Message-Id: <20100715142544.12504.283.send-patch@dhcp-lab-109.englab.brq.redhat.com>
Date: Thu, 15 Jul 2010 10:25:50 -0400
From: Stanislaw Gruszka <sgruszka@...hat.com>
To: netdev@...r.kernel.org
Cc: Michael Chan <mchan@...adcom.com>
Subject: [PATCH 2/2] bnx2: use device model DMA API
Use DMA API as PCI equivalents will be deprecated. This change also allow
to allocate with GFP_KERNEL in some places.
Signed-off-by: Stanislaw Gruszka <sgruszka@...hat.com>
---
drivers/net/bnx2.c | 111 +++++++++++++++++++++++++++-------------------------
1 files changed, 58 insertions(+), 53 deletions(-)
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 6de4cb7..98aed05 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -692,9 +692,9 @@ bnx2_free_tx_mem(struct bnx2 *bp)
struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
if (txr->tx_desc_ring) {
- pci_free_consistent(bp->pdev, TXBD_RING_SIZE,
- txr->tx_desc_ring,
- txr->tx_desc_mapping);
+ dma_free_coherent(&bp->pdev->dev, TXBD_RING_SIZE,
+ txr->tx_desc_ring,
+ txr->tx_desc_mapping);
txr->tx_desc_ring = NULL;
}
kfree(txr->tx_buf_ring);
@@ -714,9 +714,9 @@ bnx2_free_rx_mem(struct bnx2 *bp)
for (j = 0; j < bp->rx_max_ring; j++) {
if (rxr->rx_desc_ring[j])
- pci_free_consistent(bp->pdev, RXBD_RING_SIZE,
- rxr->rx_desc_ring[j],
- rxr->rx_desc_mapping[j]);
+ dma_free_coherent(&bp->pdev->dev, RXBD_RING_SIZE,
+ rxr->rx_desc_ring[j],
+ rxr->rx_desc_mapping[j]);
rxr->rx_desc_ring[j] = NULL;
}
vfree(rxr->rx_buf_ring);
@@ -724,9 +724,9 @@ bnx2_free_rx_mem(struct bnx2 *bp)
for (j = 0; j < bp->rx_max_pg_ring; j++) {
if (rxr->rx_pg_desc_ring[j])
- pci_free_consistent(bp->pdev, RXBD_RING_SIZE,
- rxr->rx_pg_desc_ring[j],
- rxr->rx_pg_desc_mapping[j]);
+ dma_free_coherent(&bp->pdev->dev, RXBD_RING_SIZE,
+ rxr->rx_pg_desc_ring[j],
+ rxr->rx_pg_desc_mapping[j]);
rxr->rx_pg_desc_ring[j] = NULL;
}
vfree(rxr->rx_pg_ring);
@@ -748,8 +748,8 @@ bnx2_alloc_tx_mem(struct bnx2 *bp)
return -ENOMEM;
txr->tx_desc_ring =
- pci_alloc_consistent(bp->pdev, TXBD_RING_SIZE,
- &txr->tx_desc_mapping);
+ dma_alloc_coherent(&bp->pdev->dev, TXBD_RING_SIZE,
+ &txr->tx_desc_mapping, GFP_KERNEL);
if (txr->tx_desc_ring == NULL)
return -ENOMEM;
}
@@ -776,8 +776,10 @@ bnx2_alloc_rx_mem(struct bnx2 *bp)
for (j = 0; j < bp->rx_max_ring; j++) {
rxr->rx_desc_ring[j] =
- pci_alloc_consistent(bp->pdev, RXBD_RING_SIZE,
- &rxr->rx_desc_mapping[j]);
+ dma_alloc_coherent(&bp->pdev->dev,
+ RXBD_RING_SIZE,
+ &rxr->rx_desc_mapping[j],
+ GFP_KERNEL);
if (rxr->rx_desc_ring[j] == NULL)
return -ENOMEM;
@@ -795,8 +797,10 @@ bnx2_alloc_rx_mem(struct bnx2 *bp)
for (j = 0; j < bp->rx_max_pg_ring; j++) {
rxr->rx_pg_desc_ring[j] =
- pci_alloc_consistent(bp->pdev, RXBD_RING_SIZE,
- &rxr->rx_pg_desc_mapping[j]);
+ dma_alloc_coherent(&bp->pdev->dev,
+ RXBD_RING_SIZE,
+ &rxr->rx_pg_desc_mapping[j],
+ GFP_KERNEL);
if (rxr->rx_pg_desc_ring[j] == NULL)
return -ENOMEM;
@@ -816,16 +820,16 @@ bnx2_free_mem(struct bnx2 *bp)
for (i = 0; i < bp->ctx_pages; i++) {
if (bp->ctx_blk[i]) {
- pci_free_consistent(bp->pdev, BCM_PAGE_SIZE,
- bp->ctx_blk[i],
- bp->ctx_blk_mapping[i]);
+ dma_free_coherent(&bp->pdev->dev, BCM_PAGE_SIZE,
+ bp->ctx_blk[i],
+ bp->ctx_blk_mapping[i]);
bp->ctx_blk[i] = NULL;
}
}
if (bnapi->status_blk.msi) {
- pci_free_consistent(bp->pdev, bp->status_stats_size,
- bnapi->status_blk.msi,
- bp->status_blk_mapping);
+ dma_free_coherent(&bp->pdev->dev, bp->status_stats_size,
+ bnapi->status_blk.msi,
+ bp->status_blk_mapping);
bnapi->status_blk.msi = NULL;
bp->stats_blk = NULL;
}
@@ -846,8 +850,8 @@ bnx2_alloc_mem(struct bnx2 *bp)
bp->status_stats_size = status_blk_size +
sizeof(struct statistics_block);
- status_blk = pci_alloc_consistent(bp->pdev, bp->status_stats_size,
- &bp->status_blk_mapping);
+ status_blk = dma_alloc_coherent(&bp->pdev->dev, bp->status_stats_size,
+ &bp->status_blk_mapping, GFP_KERNEL);
if (status_blk == NULL)
goto alloc_mem_err;
@@ -885,9 +889,10 @@ bnx2_alloc_mem(struct bnx2 *bp)
if (bp->ctx_pages == 0)
bp->ctx_pages = 1;
for (i = 0; i < bp->ctx_pages; i++) {
- bp->ctx_blk[i] = pci_alloc_consistent(bp->pdev,
+ bp->ctx_blk[i] = dma_alloc_coherent(&bp->pdev->dev,
BCM_PAGE_SIZE,
- &bp->ctx_blk_mapping[i]);
+ &bp->ctx_blk_mapping[i],
+ GFP_KERNEL);
if (bp->ctx_blk[i] == NULL)
goto alloc_mem_err;
}
@@ -2674,9 +2679,9 @@ bnx2_alloc_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gf
if (!page)
return -ENOMEM;
- mapping = pci_map_page(bp->pdev, page, 0, PAGE_SIZE,
+ mapping = dma_map_page(&bp->pdev->dev, page, 0, PAGE_SIZE,
PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(bp->pdev, mapping)) {
+ if (dma_mapping_error(&bp->pdev->dev, mapping)) {
__free_page(page);
return -EIO;
}
@@ -2697,8 +2702,8 @@ bnx2_free_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index)
if (!page)
return;
- pci_unmap_page(bp->pdev, dma_unmap_addr(rx_pg, mapping), PAGE_SIZE,
- PCI_DMA_FROMDEVICE);
+ dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(rx_pg, mapping),
+ PAGE_SIZE, PCI_DMA_FROMDEVICE);
__free_page(page);
rx_pg->page = NULL;
@@ -2721,9 +2726,9 @@ bnx2_alloc_rx_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp
if (unlikely((align = (unsigned long) skb->data & (BNX2_RX_ALIGN - 1))))
skb_reserve(skb, BNX2_RX_ALIGN - align);
- mapping = pci_map_single(bp->pdev, skb->data, bp->rx_buf_use_size,
- PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(bp->pdev, mapping)) {
+ mapping = dma_map_single(&bp->pdev->dev, skb->data, bp->rx_buf_use_size,
+ PCI_DMA_FROMDEVICE);
+ if (dma_mapping_error(&bp->pdev->dev, mapping)) {
dev_kfree_skb(skb);
return -EIO;
}
@@ -2829,7 +2834,7 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
}
}
- pci_unmap_single(bp->pdev, dma_unmap_addr(tx_buf, mapping),
+ dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
skb_headlen(skb), PCI_DMA_TODEVICE);
tx_buf->skb = NULL;
@@ -2838,7 +2843,7 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
for (i = 0; i < last; i++) {
sw_cons = NEXT_TX_BD(sw_cons);
- pci_unmap_page(bp->pdev,
+ dma_unmap_page(&bp->pdev->dev,
dma_unmap_addr(
&txr->tx_buf_ring[TX_RING_IDX(sw_cons)],
mapping),
@@ -2945,7 +2950,7 @@ bnx2_reuse_rx_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,
cons_rx_buf = &rxr->rx_buf_ring[cons];
prod_rx_buf = &rxr->rx_buf_ring[prod];
- pci_dma_sync_single_for_device(bp->pdev,
+ dma_sync_single_for_device(&bp->pdev->dev,
dma_unmap_addr(cons_rx_buf, mapping),
BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH, PCI_DMA_FROMDEVICE);
@@ -2987,7 +2992,7 @@ bnx2_rx_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, struct sk_buff *skb,
}
skb_reserve(skb, BNX2_RX_OFFSET);
- pci_unmap_single(bp->pdev, dma_addr, bp->rx_buf_use_size,
+ dma_unmap_single(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,
PCI_DMA_FROMDEVICE);
if (hdr_len == 0) {
@@ -3049,7 +3054,7 @@ bnx2_rx_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, struct sk_buff *skb,
return err;
}
- pci_unmap_page(bp->pdev, mapping_old,
+ dma_unmap_page(&bp->pdev->dev, mapping_old,
PAGE_SIZE, PCI_DMA_FROMDEVICE);
frag_size -= frag_len;
@@ -3120,7 +3125,7 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
dma_addr = dma_unmap_addr(rx_buf, mapping);
- pci_dma_sync_single_for_cpu(bp->pdev, dma_addr,
+ dma_sync_single_for_cpu(&bp->pdev->dev, dma_addr,
BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH,
PCI_DMA_FROMDEVICE);
@@ -5338,7 +5343,7 @@ bnx2_free_tx_skbs(struct bnx2 *bp)
continue;
}
- pci_unmap_single(bp->pdev,
+ dma_unmap_single(&bp->pdev->dev,
dma_unmap_addr(tx_buf, mapping),
skb_headlen(skb),
PCI_DMA_TODEVICE);
@@ -5349,7 +5354,7 @@ bnx2_free_tx_skbs(struct bnx2 *bp)
j++;
for (k = 0; k < last; k++, j++) {
tx_buf = &txr->tx_buf_ring[TX_RING_IDX(j)];
- pci_unmap_page(bp->pdev,
+ dma_unmap_page(&bp->pdev->dev,
dma_unmap_addr(tx_buf, mapping),
skb_shinfo(skb)->frags[k].size,
PCI_DMA_TODEVICE);
@@ -5379,7 +5384,7 @@ bnx2_free_rx_skbs(struct bnx2 *bp)
if (skb == NULL)
continue;
- pci_unmap_single(bp->pdev,
+ dma_unmap_single(&bp->pdev->dev,
dma_unmap_addr(rx_buf, mapping),
bp->rx_buf_use_size,
PCI_DMA_FROMDEVICE);
@@ -5732,9 +5737,9 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
for (i = 14; i < pkt_size; i++)
packet[i] = (unsigned char) (i & 0xff);
- map = pci_map_single(bp->pdev, skb->data, pkt_size,
- PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(bp->pdev, map)) {
+ map = dma_map_single(&bp->pdev->dev, skb->data, pkt_size,
+ PCI_DMA_TODEVICE);
+ if (dma_mapping_error(&bp->pdev->dev, map)) {
dev_kfree_skb(skb);
return -EIO;
}
@@ -5772,7 +5777,7 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
udelay(5);
- pci_unmap_single(bp->pdev, map, pkt_size, PCI_DMA_TODEVICE);
+ dma_unmap_single(&bp->pdev->dev, map, pkt_size, PCI_DMA_TODEVICE);
dev_kfree_skb(skb);
if (bnx2_get_hw_tx_cons(tx_napi) != txr->tx_prod)
@@ -5789,7 +5794,7 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
rx_hdr = rx_buf->desc;
skb_reserve(rx_skb, BNX2_RX_OFFSET);
- pci_dma_sync_single_for_cpu(bp->pdev,
+ dma_sync_single_for_cpu(&bp->pdev->dev,
dma_unmap_addr(rx_buf, mapping),
bp->rx_buf_size, PCI_DMA_FROMDEVICE);
@@ -6457,8 +6462,8 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
} else
mss = 0;
- mapping = pci_map_single(bp->pdev, skb->data, len, PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(bp->pdev, mapping)) {
+ mapping = dma_map_single(&bp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
+ if (dma_mapping_error(&bp->pdev->dev, mapping)) {
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
@@ -6486,9 +6491,9 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)
txbd = &txr->tx_desc_ring[ring_prod];
len = frag->size;
- mapping = pci_map_page(bp->pdev, frag->page, frag->page_offset,
- len, PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(bp->pdev, mapping))
+ mapping = dma_map_page(&bp->pdev->dev, frag->page, frag->page_offset,
+ len, PCI_DMA_TODEVICE);
+ if (dma_mapping_error(&bp->pdev->dev, mapping))
goto dma_error;
dma_unmap_addr_set(&txr->tx_buf_ring[ring_prod], mapping,
mapping);
@@ -6527,7 +6532,7 @@ dma_error:
ring_prod = TX_RING_IDX(prod);
tx_buf = &txr->tx_buf_ring[ring_prod];
tx_buf->skb = NULL;
- pci_unmap_single(bp->pdev, dma_unmap_addr(tx_buf, mapping),
+ dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
skb_headlen(skb), PCI_DMA_TODEVICE);
/* unmap remaining mapped pages */
@@ -6535,7 +6540,7 @@ dma_error:
prod = NEXT_TX_BD(prod);
ring_prod = TX_RING_IDX(prod);
tx_buf = &txr->tx_buf_ring[ring_prod];
- pci_unmap_page(bp->pdev, dma_unmap_addr(tx_buf, mapping),
+ dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),
skb_shinfo(skb)->frags[i].size,
PCI_DMA_TODEVICE);
}
--
1.7.1
--
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