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RDMA/cma: Allow user to specify AF_IB when binding 

Modify rdma_bind_addr to allow the user to specify AF_IB when binding
to a device.  AF_IB indicates that the user is not mapping an IP
address to the native IB addressing.  (The mapping may have already
been done, or is not needed)

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
hifive-unleashed-5.1
Sean Hefty 2013-05-29 10:09:12 -07:00 committed by Roland Dreier
parent 58afdcb738
commit 680f920a2e
1 changed files with 28 additions and 6 deletions
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34
drivers/infiniband/core/cma.c
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@ -359,6 +359,27 @@ static int find_gid_port(struct ib_device *device, union ib_gid *gid, u8 port_nu
return -EADDRNOTAVAIL;
}
static void cma_translate_ib(struct sockaddr_ib *sib, struct rdma_dev_addr *dev_addr)
{
dev_addr->dev_type = ARPHRD_INFINIBAND;
rdma_addr_set_sgid(dev_addr, (union ib_gid *) &sib->sib_addr);
ib_addr_set_pkey(dev_addr, ntohs(sib->sib_pkey));
}
static int cma_translate_addr(struct sockaddr *addr, struct rdma_dev_addr *dev_addr)
{
int ret;
if (addr->sa_family != AF_IB) {
ret = rdma_translate_ip(addr, dev_addr);
} else {
cma_translate_ib((struct sockaddr_ib *) addr, dev_addr);
ret = 0;
}
return ret;
}
static int cma_acquire_dev(struct rdma_id_private *id_priv)
{
struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
@ -1136,8 +1157,8 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
rdma_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid);
ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey));
} else {
ret = rdma_translate_ip((struct sockaddr *) &rt->addr.src_addr,
&rt->addr.dev_addr);
ret = cma_translate_addr((struct sockaddr *) &rt->addr.src_addr,
&rt->addr.dev_addr);
if (ret)
goto err;
}
@ -1176,8 +1197,8 @@ static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
ip_ver, port, src, dst);
if (!cma_any_addr((struct sockaddr *) &id->route.addr.src_addr)) {
ret = rdma_translate_ip((struct sockaddr *) &id->route.addr.src_addr,
&id->route.addr.dev_addr);
ret = cma_translate_addr((struct sockaddr *) &id->route.addr.src_addr,
&id->route.addr.dev_addr);
if (ret)
goto err;
}
@ -2443,7 +2464,8 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
struct rdma_id_private *id_priv;
int ret;
if (addr->sa_family != AF_INET && addr->sa_family != AF_INET6)
if (addr->sa_family != AF_INET && addr->sa_family != AF_INET6 &&
addr->sa_family != AF_IB)
return -EAFNOSUPPORT;
id_priv = container_of(id, struct rdma_id_private, id);
@ -2455,7 +2477,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
goto err1;
if (!cma_any_addr(addr)) {
ret = rdma_translate_ip(addr, &id->route.addr.dev_addr);
ret = cma_translate_addr(addr, &id->route.addr.dev_addr);
if (ret)
goto err1;