[Quantal][PATCH 19/29] be2net: Ignore physical link async event for Lancer

[Jesse Sung]

From: Padmanabh Ratnakar <padmanabh.ratnakar at emulex.com>

BugLink: https://launchpad.net/bugs/1083088

The ability of driver to transmit packets depends on logical state
of the link. Ignore physical link status.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar at emulex.com>
Signed-off-by: David S. Miller <davem at davemloft.net>
(cherry picked from commit 2e177a5c6cc52d8a422c69ba87b8a7e00ecb6eac)

Signed-off-by: Wen-chien Jesse Sung <jesse.sung at canonical.com>
---
 drivers/net/ethernet/emulex/benet/be_cmds.c |    5 +++++
 drivers/net/ethernet/emulex/benet/be_cmds.h |    1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index c78551b..b6748da 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -141,6 +141,11 @@ static void be_async_link_state_process(struct be_adapter *adapter,
 	/* When link status changes, link speed must be re-queried from FW */
 	adapter->phy.link_speed = -1;
 
+	/* Ignore physical link event */
+	if (lancer_chip(adapter) &&
+	    !(evt->port_link_status & LOGICAL_LINK_STATUS_MASK))
+		return;
+
 	/* For the initial link status do not rely on the ASYNC event as
 	 * it may not be received in some cases.
 	 */
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 600e8d6..e1e919c 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -93,6 +93,7 @@ enum {
 	LINK_UP		= 0x1
 };
 #define LINK_STATUS_MASK			0x1
+#define LOGICAL_LINK_STATUS_MASK		0x2
 
 /* When the event code of an async trailer is link-state, the mcc_compl
  * must be interpreted as follows
-- 
1.7.10.4