net: thunderx: Cleanup duplicate NODE_ID macros, add nic_get_node_id()

There are duplicate NODE_ID macro definitions. Move all of them to
nic.h for usage in nic and bgx driver and introduce nic_get_node_id()
helper function.

This patch also fixes 64bit mask which should have been ULL by
reworking the node calculation.

Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cavium/thunder/nic.h

@@ -11,6 +11,7 @@
 
 #include <linux/netdevice.h>
 #include <linux/interrupt.h>
+#include <linux/pci.h>
 #include "thunder_bgx.h"
 
 /* PCI device IDs */
@@ -398,6 +399,15 @@ union nic_mbx {
 	struct bgx_link_status  link_status;
 };
 
+#define NIC_NODE_ID_MASK	0x03
+#define NIC_NODE_ID_SHIFT	44
+
+static inline int nic_get_node_id(struct pci_dev *pdev)
+{
+	u64 addr = pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM);
+	return ((addr >> NIC_NODE_ID_SHIFT) & NIC_NODE_ID_MASK);
+}
+
 int nicvf_set_real_num_queues(struct net_device *netdev,
 			      int tx_queues, int rx_queues);
 int nicvf_open(struct net_device *netdev);

drivers/net/ethernet/cavium/thunder/nic_main.c

@@ -23,8 +23,6 @@
 struct nicpf {
 	struct pci_dev		*pdev;
 	u8			rev_id;
-#define NIC_NODE_ID_MASK	0x300000000000
-#define NIC_NODE_ID(x)		((x & NODE_ID_MASK) >> 44)
 	u8			node;
 	unsigned int		flags;
 	u8			num_vf_en;      /* No of VF enabled */
@@ -851,7 +849,7 @@ static int nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	pci_read_config_byte(pdev, PCI_REVISION_ID, &nic->rev_id);
 
-	nic->node = NIC_NODE_ID(pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM));
+	nic->node = nic_get_node_id(pdev);
 
 	nic_set_lmac_vf_mapping(nic);
 

drivers/net/ethernet/cavium/thunder/thunder_bgx.c

@@ -894,8 +894,8 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_release_regions;
 	}
 	bgx->bgx_id = (pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM) >> 24) & 1;
-	bgx->bgx_id += NODE_ID(pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM))
-							* MAX_BGX_PER_CN88XX;
+	bgx->bgx_id += nic_get_node_id(pdev) * MAX_BGX_PER_CN88XX;
+
 	bgx_vnic[bgx->bgx_id] = bgx;
 	bgx_get_qlm_mode(bgx);
 

drivers/net/ethernet/cavium/thunder/thunder_bgx.h

@@ -20,9 +20,6 @@
 
 #define    MAX_LMAC	(MAX_BGX_PER_CN88XX * MAX_LMAC_PER_BGX)
 
-#define    NODE_ID_MASK				0x300000000000
-#define    NODE_ID(x)				((x & NODE_ID_MASK) >> 44)
-
 /* Registers */
 #define BGX_CMRX_CFG			0x00
 #define  CMR_PKT_TX_EN				BIT_ULL(13)