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netxen: fix physical port mapping

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The PCI function to physical port mapping is valid only for
old firmware. New firmware (4.0.0+) abstracts this.
So driver should never try to access phy using invalid
mapping. The behavior is unpredictable when PCI functions
4-7 are enabled on the same NIC.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dhananjay Phadke 2009-02-24 03:42:59 -08:00 committed by David S. Miller
parent 50fee1dec5
commit 044fad0dbb
1 changed files with 6 additions and 3 deletions
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9
drivers/net/netxen/netxen_nic_main.c
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@ -795,9 +795,12 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
* See if the firmware gave us a virtual-physical port mapping.
*/
adapter->physical_port = adapter->portnum;
i = adapter->pci_read_normalize(adapter, CRB_V2P(adapter->portnum));
if (i != 0x55555555)
adapter->physical_port = i;
if (adapter->fw_major < 4) {
i = adapter->pci_read_normalize(adapter,
CRB_V2P(adapter->portnum));
if (i != 0x55555555)
adapter->physical_port = i;
}
adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);