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e1000e: workaround EEPROM configuration change on 82579

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An update to the EEPROM on 82579 will extend a delay in hardware to fix an
issue with WoL not working after a G3->S5 transition which is unrelated to
the driver.  However, this extended delay conflicts with nominal operation
of the device when it is initialized by the driver and after every reset
of the hardware (i.e. the driver starts configuring the device before the
hardware is done with it's own configuration work).  The workaround for
when the driver is in control of the device is to tell the hardware after
every reset the configuration delay should be the original shorter one.

Some pre-existing variables are renamed generically to be re-used with
new register accesses.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan
2012-03-20 03:47:57 +00:00
committed by Jeff Kirsher
parent e4ae004b84
commit 62bc813e48
2 changed files with 34 additions and 15 deletions
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1
drivers/net/ethernet/intel/e1000e/hw.h
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@@ -51,6 +51,7 @@ enum e1e_registers {
E1000_FEXTNVM = 0x00028, /* Future Extended NVM - RW */
E1000_FCT = 0x00030, /* Flow Control Type - RW */
E1000_VET = 0x00038, /* VLAN Ether Type - RW */
E1000_FEXTNVM3 = 0x0003C, /* Future Extended NVM 3 - RW */
E1000_ICR = 0x000C0, /* Interrupt Cause Read - R/clr */
E1000_ITR = 0x000C4, /* Interrupt Throttling Rate - RW */
E1000_ICS = 0x000C8, /* Interrupt Cause Set - WO */