e1000e: store EEPROM version number to prevent unnecessary NVM reads

Rather than reading the NVM to get the EEPROM version number everytime the
ethool get_drvinfo function is called, read it once during probe and save
it for future reference.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index c55fd6fdb91c..473c41479ece 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -193,6 +193,7 @@ struct e1000_adapter {
         u16 mng_vlan_id;
         u16 link_speed;
         u16 link_duplex;
+        u16 eeprom_vers;
 
         spinlock_t tx_queue_lock; /* prevent concurrent tail updates */