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Commit 044fad0d authored by Dhananjay Phadke's avatar Dhananjay Phadke Committed by David S. Miller
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netxen: fix physical port mapping 



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: default avatarDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 50fee1de

drivers/net/netxen/netxen_nic_main.c

+6 −3
Original line number Diff line number Diff line
@@ -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 (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);