e1000e: only perform ESB2 MDIC workaround on certain configurations
A workaround added for all ESB2 devices (adds a delay for all MDIC accesses
which resolves an issue with the MDIC ready bit being set prematurely) is
applicable only to devices in which the MAC-PHY interconnect is not
operating in a certain mode with in-band MDIO. Check the control register
for the operating mode and enable the workaround accordingly.
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>
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index 5ed1788..2784cf4 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -900,6 +900,10 @@
u32 smb_counter;
};
+struct e1000_dev_spec_80003es2lan {
+ bool mdic_wa_enable;
+};
+
struct e1000_shadow_ram {
u16 value;
bool modified;
@@ -928,6 +932,7 @@
union {
struct e1000_dev_spec_82571 e82571;
+ struct e1000_dev_spec_80003es2lan e80003es2lan;
struct e1000_dev_spec_ich8lan ich8lan;
} dev_spec;
};