cnic, bnx2: Check iSCSI support early in bnx2_init_one()

Based on earlier patch from Neil Horman <nhorman@tuxdriver.com>

If iSCSI is not supported on a bnx2 device, bnx2_cnic_probe() will
return NULL and the cnic device will not be visible to bnx2i.  This
will prevent bnx2i from registering and then unregistering during
cnic_start() and cause the warning message:

bnx2 0003:01:00.1: eth1: Failed waiting for ULP up call to complete
Signed-off-by: NMichael Chan <mchan@broadcom.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/bnx2.c

@@ -416,6 +416,9 @@ struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev)
 	struct bnx2 *bp = netdev_priv(dev);
 	struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
 
+	if (!cp->max_iscsi_conn)
+		return NULL;
+
 	cp->drv_owner = THIS_MODULE;
 	cp->chip_id = bp->chip_id;
 	cp->pdev = bp->pdev;
@@ -8177,6 +8180,10 @@ bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
 	bp->timer.data = (unsigned long) bp;
 	bp->timer.function = bnx2_timer;
 
+#ifdef BCM_CNIC
+	bp->cnic_eth_dev.max_iscsi_conn =
+		bnx2_reg_rd_ind(bp, BNX2_FW_MAX_ISCSI_CONN);
+#endif
 	pci_save_state(pdev);
 
 	return 0;

drivers/net/cnic.c

@@ -4225,14 +4225,6 @@ static void cnic_enable_bnx2_int(struct cnic_dev *dev)
 		BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | cp->last_status_idx);
 }
 
-static void cnic_get_bnx2_iscsi_info(struct cnic_dev *dev)
-{
-	u32 max_conn;
-
-	max_conn = cnic_reg_rd_ind(dev, BNX2_FW_MAX_ISCSI_CONN);
-	dev->max_iscsi_conn = max_conn;
-}
-
 static void cnic_disable_bnx2_int_sync(struct cnic_dev *dev)
 {
 	struct cnic_local *cp = dev->cnic_priv;
@@ -4557,8 +4549,6 @@ static int cnic_start_bnx2_hw(struct cnic_dev *dev)
 		return err;
 	}
 
-	cnic_get_bnx2_iscsi_info(dev);
-
 	return 0;
 }
 
@@ -5224,6 +5214,8 @@ static struct cnic_dev *init_bnx2_cnic(struct net_device *dev)
 	cdev->pcidev = pdev;
 	cp->chip_id = ethdev->chip_id;
 
+	cdev->max_iscsi_conn = ethdev->max_iscsi_conn;
+
 	cp->cnic_ops = &cnic_bnx2_ops;
 	cp->start_hw = cnic_start_bnx2_hw;
 	cp->stop_hw = cnic_stop_bnx2_hw;