Add ipv6_ib_mc_map() to convert IPv6 multicast addresses to IPoIB hardware addresses, and add support for autoconfiguration for devices with type ARPHRD_INFINIBAND.
The mapping for multicast addresses is described in http://www.ietf.org/internet-drafts/draft-ietf-ipoib-ip-over-infiniband-07.txt Signed-off-by: Nitin Hande <[EMAIL PROTECTED]> Signed-off-by: Roland Dreier <[EMAIL PROTECTED]> Index: linux-bk/include/net/if_inet6.h =================================================================== --- linux-bk.orig/include/net/if_inet6.h 2004-11-17 19:52:39.000000000 -0800 +++ linux-bk/include/net/if_inet6.h 2004-11-18 10:51:45.514343721 -0800 @@ -266,5 +266,20 @@ { buf[0] = 0x00; } + +static inline void ipv6_ib_mc_map(struct in6_addr *addr, char *buf) +{ + buf[0] = 0; /* Reserved */ + buf[1] = 0xff; /* Multicast QPN */ + buf[2] = 0xff; + buf[3] = 0xff; + buf[4] = 0xff; + buf[5] = 0x12; /* link local scope */ + buf[6] = 0x60; /* IPv6 signature */ + buf[7] = 0x1b; + buf[8] = 0; /* P_Key */ + buf[9] = 0; + memcpy(buf + 10, addr->s6_addr + 6, 10); +} #endif #endif Index: linux-bk/net/ipv6/addrconf.c =================================================================== --- linux-bk.orig/net/ipv6/addrconf.c 2004-11-17 19:52:35.000000000 -0800 +++ linux-bk/net/ipv6/addrconf.c 2004-11-18 10:51:45.515343574 -0800 @@ -1098,6 +1098,13 @@ memset(eui, 0, 7); eui[7] = *(u8*)dev->dev_addr; return 0; + case ARPHRD_INFINIBAND: + /* XXX: replace len with IPOIB_HW_ADDR_LEN later */ + if (dev->addr_len != 20) + return -1; + memcpy(eui, dev->dev_addr + 12, 8); + eui[0] |= 2; + return 0; } return -1; } @@ -1797,6 +1804,7 @@ if ((dev->type != ARPHRD_ETHER) && (dev->type != ARPHRD_FDDI) && (dev->type != ARPHRD_IEEE802_TR) && + (dev->type != ARPHRD_INFINIBAND) && (dev->type != ARPHRD_ARCNET)) { /* Alas, we support only Ethernet autoconfiguration. */ return; Index: linux-bk/net/ipv6/ndisc.c =================================================================== --- linux-bk.orig/net/ipv6/ndisc.c 2004-11-17 19:52:19.000000000 -0800 +++ linux-bk/net/ipv6/ndisc.c 2004-11-18 10:51:45.516343427 -0800 @@ -260,6 +260,9 @@ case ARPHRD_ARCNET: ipv6_arcnet_mc_map(addr, buf); return 0; + case ARPHRD_INFINIBAND: + ipv6_ib_mc_map(addr, buf); + return 0; default: if (dir) { memcpy(buf, dev->broadcast, dev->addr_len); _______________________________________________ openib-general mailing list [EMAIL PROTECTED] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
