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ixgbe: register a mdiobus

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Most dsa devices expect a 'struct mii_bus' pointer to talk to switches
via the MII interface.

While this works for dsa devices, it will not work safely with Linux
PHYs in all configurations since the firmware of the ixgbe device may
be polling some PHY addresses in the background.

Signed-off-by: Stephen Douthit <stephend@silicom-usa.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Steve Douthit
2018-12-06 15:50:39 +00:00
committed by Jeff Kirsher
parent 1fb3a7a75e
commit 8fa10ef012
5 changed files with 309 additions and 0 deletions
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2
drivers/net/ethernet/intel/ixgbe/ixgbe.h
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@@ -12,6 +12,7 @@
#include <linux/aer.h>
#include <linux/if_vlan.h>
#include <linux/jiffies.h>
#include <linux/phy.h>
#include <linux/timecounter.h>
#include <linux/net_tstamp.h>
@@ -561,6 +562,7 @@ struct ixgbe_adapter {
struct net_device *netdev;
struct bpf_prog *xdp_prog;
struct pci_dev *pdev;
struct mii_bus *mii_bus;
unsigned long state;