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cnic: Put rx/tx ring allocation in separate function.

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This will allow the 10G iSCSI code to reuse the function.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2009-08-26 09:49:22 +00:00 committed by David S. Miller
parent 3d1427f870
commit ec0248ea35
1 changed files with 22 additions and 11 deletions
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33
drivers/net/cnic.c
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@ -742,6 +742,26 @@ static int cnic_alloc_context(struct cnic_dev *dev)
return 0;
}
static int cnic_alloc_l2_rings(struct cnic_dev *dev, int pages)
{
struct cnic_local *cp = dev->cnic_priv;
cp->l2_ring_size = pages * BCM_PAGE_SIZE;
cp->l2_ring = pci_alloc_consistent(dev->pcidev, cp->l2_ring_size,
&cp->l2_ring_map);
if (!cp->l2_ring)
return -ENOMEM;
cp->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
cp->l2_buf_size = PAGE_ALIGN(cp->l2_buf_size);
cp->l2_buf = pci_alloc_consistent(dev->pcidev, cp->l2_buf_size,
&cp->l2_buf_map);
if (!cp->l2_buf)
return -ENOMEM;
return 0;
}
static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
{
struct cnic_local *cp = dev->cnic_priv;
@ -762,17 +782,8 @@ static int cnic_alloc_bnx2_resc(struct cnic_dev *dev)
if (ret)
goto error;
cp->l2_ring_size = 2 * BCM_PAGE_SIZE;
cp->l2_ring = pci_alloc_consistent(dev->pcidev, cp->l2_ring_size,
&cp->l2_ring_map);
if (!cp->l2_ring)
goto error;
cp->l2_buf_size = (cp->l2_rx_ring_size + 1) * cp->l2_single_buf_size;
cp->l2_buf_size = PAGE_ALIGN(cp->l2_buf_size);
cp->l2_buf = pci_alloc_consistent(dev->pcidev, cp->l2_buf_size,
&cp->l2_buf_map);
if (!cp->l2_buf)
ret = cnic_alloc_l2_rings(dev, 2);
if (ret)
goto error;
uinfo = kzalloc(sizeof(*uinfo), GFP_ATOMIC);