e1000e: ESB2 config after link up

On ESB2, the MAC-to-PHY (Kumeran) interface must be configured after link
is up before any traffic is sent; a new PHY operations function pointer is
provided for this.  To facilitate read/write of the Kumeran registers
without blocking PHY register writes, the driver/firmware synchronization
method which previously used a hardware semaphore for both PHY and Kumeran
register accesses is now split.  New Kumeran register read/write functions
utilize this new synchronization method.

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, 3 insertions, 0 deletions

diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index cbb1707cc0d5..11e72b64e87d 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -1394,6 +1394,7 @@ static struct e1000_phy_operations e82_phy_ops_igp = {
         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
         .write_phy_reg          = e1000e_write_phy_reg_igp,
+        .cfg_on_link_up         = NULL,
 };
 
 static struct e1000_phy_operations e82_phy_ops_m88 = {
@@ -1410,6 +1411,7 @@ static struct e1000_phy_operations e82_phy_ops_m88 = {
         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
         .write_phy_reg          = e1000e_write_phy_reg_m88,
+        .cfg_on_link_up         = NULL,
 };
 
 static struct e1000_phy_operations e82_phy_ops_bm = {
@@ -1426,6 +1428,7 @@ static struct e1000_phy_operations e82_phy_ops_bm = {
         .set_d0_lplu_state      = e1000_set_d0_lplu_state_82571,
         .set_d3_lplu_state      = e1000e_set_d3_lplu_state,
         .write_phy_reg          = e1000e_write_phy_reg_bm2,
+        .cfg_on_link_up         = NULL,
 };
 
 static struct e1000_nvm_operations e82571_nvm_ops = {