RDMA CM: Fix AF_INET6 support in multicast joining If joining to an AF_INET6 address we need to map the address to a MGID in the same way as the IP stack. The old code would just fall through to the IPv4 case and generate garbage.
Signed-off-by: Jason Gunthorpe <[email protected]> Signed-off-by: Sean Hefty <[email protected]> Ported to OFED-1.5-rc3 Signed-of-by: David Wilder <[email protected]> --- drivers/infiniband/core/cma.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index ab493f7..1f9d833 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -2745,6 +2745,11 @@ static void cma_set_mgid(struct rdma_id_private *id_priv, 0xFF10A01B)) { /* IPv6 address is an SA assigned MGID. */ memcpy(mgid, &sin6->sin6_addr, sizeof *mgid); + } else if ((addr->sa_family == AF_INET6)) { + ipv6_ib_mc_map(&sin6->sin6_addr, dev_addr->broadcast, mc_map); + if (id_priv->id.ps == RDMA_PS_UDP) + mc_map[7] = 0x01; /* Use RDMA CM signature */ + *mgid = *(union ib_gid *) (mc_map + 4); } else { ip_ib_mc_map(sin->sin_addr.s_addr, dev_addr->broadcast, mc_map); if (id_priv->id.ps == RDMA_PS_UDP) _______________________________________________ ewg mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/ewg
