qlcnic: detect fan failure

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c

@@ -832,7 +832,6 @@ qlcnic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
 		data[3] = qlcnic_loopback_test(dev, QLCNIC_ILB_MODE);
 		if (data[3])
 			eth_test->flags |= ETH_TEST_FL_FAILED;
-
 		if (eth_test->flags & ETH_TEST_FL_EXTERNAL_LB) {
 			data[4] = qlcnic_loopback_test(dev, QLCNIC_ELB_MODE);
 			if (data[4])

drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h

@@ -609,6 +609,7 @@ enum {
 	QLCNIC_TEMP_PANIC	/* Fatal error, hardware has shut down. */
 };
 
+
 /* Lock IDs for PHY lock */
 #define PHY_LOCK_DRIVER		0x44524956
 
@@ -723,7 +724,8 @@ enum {
 #define QLCNIC_RCODE_DRIVER_CAN_RELOAD		BIT_30
 #define QLCNIC_RCODE_FATAL_ERROR		BIT_31
 #define QLCNIC_FWERROR_PEGNUM(code)		((code) & 0xff)
-#define QLCNIC_FWERROR_CODE(code)		((code >> 8) & 0xfffff)
+#define QLCNIC_FWERROR_CODE(code)		((code >> 8) & 0x1fffff)
+#define QLCNIC_FWERROR_FAN_FAILURE		0x16
 
 #define FW_POLL_DELAY		(1 * HZ)
 #define FW_FAIL_THRESH		2

drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

@@ -2928,16 +2928,37 @@ qlcnic_detach_work(struct work_struct *work)
 
 	status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
 
-	if (status & QLCNIC_RCODE_FATAL_ERROR)
+	if (status & QLCNIC_RCODE_FATAL_ERROR) {
+		dev_err(&adapter->pdev->dev,
+			"Detaching the device: peg halt status1=0x%x\n",
+					status);
+
+		if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
+			dev_err(&adapter->pdev->dev,
+			"On board active cooling fan failed. "
+				"Device has been halted.\n");
+			dev_err(&adapter->pdev->dev,
+				"Replace the adapter.\n");
+		}
+
 		goto err_ret;
+	}
 
-	if (adapter->temp == QLCNIC_TEMP_PANIC)
+	if (adapter->temp == QLCNIC_TEMP_PANIC) {
+		dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
+			adapter->temp);
 		goto err_ret;
+	}
+
 	/* Dont ack if this instance is the reset owner */
 	if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
-		if (qlcnic_set_drv_state(adapter, adapter->dev_state))
+		if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
+			dev_err(&adapter->pdev->dev,
+				"Failed to set driver state,"
+					"detaching the device.\n");
 			goto err_ret;
 		}
+	}
 
 	adapter->fw_wait_cnt = 0;
 
@@ -2946,8 +2967,6 @@ qlcnic_detach_work(struct work_struct *work)
 	return;
 
 err_ret:
-	dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
-			status, adapter->temp);
 	netif_device_attach(netdev);
 	qlcnic_clr_all_drv_state(adapter, 1);
 }