diff options
| author | Yuval Shaia <yuval.shaia@oracle.com> | 2017-03-14 16:01:57 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-04-25 14:21:34 -0400 |
| commit | 4d6f28591fe415fc5233e9148c66a1b81ad17425 (patch) | |
| tree | cfcf61242386fa118ed79b39291d14b7eae7fbef /include/net/addrconf.h | |
| parent | a7c81326ca3af41cdd5ab9a65d5d5880df66e84c (diff) | |
{net,IB}/{rxe,usnic}: Utilize generic mac to eui32 function
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>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Diffstat (limited to 'include/net/addrconf.h')
| -rw-r--r-- | include/net/addrconf.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 1aeb25dd42a7..2452e6449532 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -103,12 +103,24 @@ 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 addrconf_addr_eui48_base(u8 *eui, const char *const addr) +{ + memcpy(eui, addr, 3); + eui[3] = 0xFF; + eui[4] = 0xFE; + memcpy(eui + 5, addr + 3, 3); +} + +static inline void addrconf_addr_eui48(u8 *eui, const char *const addr) +{ + addrconf_addr_eui48_base(eui, addr); + eui[0] ^= 2; +} + 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); /* * The zSeries OSA network cards can be shared among various @@ -123,14 +135,16 @@ static inline int addrconf_ifid_eui48(u8 *eui, struct net_device *dev) * case. Hence the resulting interface identifier has local * scope according to RFC2373. */ + + addrconf_addr_eui48_base(eui, dev->dev_addr); + 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; } |