diff mbox

{net,IB}/{rxe,usnic}: Utilize generic mac to eui32 function

Message ID 1488486212-22369-1-git-send-email-yuval.shaia@oracle.com (mailing list archive)
State Superseded
Headers show

Commit Message

Yuval Shaia March 2, 2017, 8:23 p.m. UTC 
This logic seems to be duplicated in (at least) three separate files.
Move it to one place so code can be re-use.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
---
 drivers/infiniband/hw/usnic/usnic_common_util.h | 11 +++--------
 drivers/infiniband/sw/rxe/rxe_net.c             | 10 +---------
 include/net/addrconf.h                          | 18 ++++++++++++------
 3 files changed, 16 insertions(+), 23 deletions(-)
diff mbox

Patch

diff --git a/drivers/infiniband/hw/usnic/usnic_common_util.h b/drivers/infiniband/hw/usnic/usnic_common_util.h
index b54986d..06e4cda 100644
--- a/drivers/infiniband/hw/usnic/usnic_common_util.h
+++ b/drivers/infiniband/hw/usnic/usnic_common_util.h
@@ -34,6 +34,8 @@ 
 #ifndef USNIC_CMN_UTIL_H
 #define USNIC_CMN_UTIL_H
 
+#include <net/addrconf.h>
+
 static inline void
 usnic_mac_to_gid(const char *const mac, char *raw_gid)
 {
@@ -57,14 +59,7 @@ 
 	raw_gid[1] = 0x80;
 	memset(&raw_gid[2], 0, 2);
 	memcpy(&raw_gid[4], &inaddr, 4);
-	raw_gid[8] = mac[0]^2;
-	raw_gid[9] = mac[1];
-	raw_gid[10] = mac[2];
-	raw_gid[11] = 0xff;
-	raw_gid[12] = 0xfe;
-	raw_gid[13] = mac[3];
-	raw_gid[14] = mac[4];
-	raw_gid[15] = mac[5];
+	defaddrconf_ifid_eui48(&raw_gid[8], mac);
 }
 
 static inline void
diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c
index 4abdeb3..656eabe 100644
--- a/drivers/infiniband/sw/rxe/rxe_net.c
+++ b/drivers/infiniband/sw/rxe/rxe_net.c
@@ -86,18 +86,10 @@  struct rxe_dev *get_rxe_by_name(const char *name)
 
 static __be64 rxe_mac_to_eui64(struct net_device *ndev)
 {
-	unsigned char *mac_addr = ndev->dev_addr;
 	__be64 eui64;
 	unsigned char *dst = (unsigned char *)&eui64;
 
-	dst[0] = mac_addr[0] ^ 2;
-	dst[1] = mac_addr[1];
-	dst[2] = mac_addr[2];
-	dst[3] = 0xff;
-	dst[4] = 0xfe;
-	dst[5] = mac_addr[3];
-	dst[6] = mac_addr[4];
-	dst[7] = mac_addr[5];
+	defaddrconf_ifid_eui48(dst, ndev->dev_addr);
 
 	return eui64;
 }
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 8f998af..97aed5f 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -105,12 +105,21 @@  int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev,
 				 u32 addr_flags, bool sllao, bool tokenized,
 				 __u32 valid_lft, u32 prefered_lft);
 
+static inline void defaddrconf_ifid_eui48(u8 *eui, const char *const addr)
+{
+	memcpy(eui, addr, 3);
+	eui[0] ^= 2;
+	eui[3] = 0xFF;
+	eui[4] = 0xFE;
+	memcpy(eui + 5, addr + 3, 3);
+}
+
 static inline int addrconf_ifid_eui48(u8 *eui, struct net_device *dev)
 {
 	if (dev->addr_len != ETH_ALEN)
 		return -1;
-	memcpy(eui, dev->dev_addr, 3);
-	memcpy(eui + 5, dev->dev_addr + 3, 3);
+
+	defaddrconf_ifid_eui48(eui, dev->dev_addr);
 
 	/*
 	 * The zSeries OSA network cards can be shared among various
@@ -128,11 +137,8 @@  static inline int addrconf_ifid_eui48(u8 *eui, struct net_device *dev)
 	if (dev->dev_id) {
 		eui[3] = (dev->dev_id >> 8) & 0xFF;
 		eui[4] = dev->dev_id & 0xFF;
-	} else {
-		eui[3] = 0xFF;
-		eui[4] = 0xFE;
-		eui[0] ^= 2;
 	}
+
 	return 0;
 }