qlcnic: clear device reset state after fw recovery

o After firmware recovery, clear device reset state transition register.
  Otherwise firmware reload can occur unnecessary.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 21 insertions, 1 deletions

diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 05275f2153be..9a98285ee791 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -1866,6 +1866,23 @@ qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state)
         qlcnic_api_unlock(adapter);
 }
 
+static int
+qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
+{
+        u32  val;
+
+        if (qlcnic_api_lock(adapter))
+                return -EBUSY;
+
+        val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
+        val &= ~((u32)0x3 << (adapter->portnum * 4));
+        QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
+
+        qlcnic_api_unlock(adapter);
+
+        return 0;
+}
+
 static void
 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
 {
@@ -2119,7 +2136,10 @@ qlcnic_attach_work(struct work_struct *work)
 done:
         adapter->fw_fail_cnt = 0;
         clear_bit(__QLCNIC_RESETTING, &adapter->state);
-        qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
+
+        if (!qlcnic_clr_drv_state(adapter))
+                qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
+                                                        FW_POLL_DELAY);
 }
 
 static int