Sean,
Apparently, on bind, loopback addresses such as 127.0.0.1 in TCP have the same
meaning as zeronet ANY address.
Specifically,
getaddrinfo(NULL, port, &hints, &res);
seems to return 127.0.0.1 as interface.
The following patch makes it work for CMA as well.
I also changed cma_loopback_addr to match any address in LOOPBACK
subnet.
--
Interpret any ZERONET/LOOPBACK address as INADDR_ANY.
Make cma_loopback_addr match any address in LOOPBACK subnet.
Signed-off-by: Michael S. Tsirkin <[EMAIL PROTECTED]>
Interpret any ZERONET/LOOPBACK address as INADDR_ANY.
Make cma_loopback_addr match any address in LOOPBACK subnet.
Signed-off-by: Michael S. Tsirkin <[EMAIL PROTECTED]>
Index: linux-2.6.16/drivers/infiniband/core/cma.c
===================================================================
--- linux-2.6.16/drivers/infiniband/core/cma.c (revision 6012)
+++ linux-2.6.16/drivers/infiniband/core/cma.c (working copy)
@@ -446,10 +447,10 @@ static inline int cma_any_addr(struct so
{
struct in6_addr *ip6;
- if (addr->sa_family == AF_INET)
- return ((struct sockaddr_in *) addr)->sin_addr.s_addr ==
- INADDR_ANY;
- else {
+ if (addr->sa_family == AF_INET) {
+ __u32 s_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
+ return ZERONET(s_addr) || LOOPBACK(s_addr);
+ } else {
ip6 = &((struct sockaddr_in6 *) addr)->sin6_addr;
return (ip6->s6_addr32[0] | ip6->s6_addr32[1] |
ip6->s6_addr32[3] | ip6->s6_addr32[4]) == 0;
@@ -458,8 +459,7 @@ static inline int cma_any_addr(struct so
static inline int cma_loopback_addr(struct sockaddr *addr)
{
- return ((struct sockaddr_in *) addr)->sin_addr.s_addr ==
- ntohl(INADDR_LOOPBACK);
+ return LOOPBACK(((struct sockaddr_in *) addr)->sin_addr.s_addr);
}
static int cma_get_net_info(void *hdr, enum rdma_port_space ps,
--
Michael S. Tsirkin
Staff Engineer, Mellanox Technologies
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