From: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
When iWARP port mapping is being done, the passive side of a connection
only knows the mapped address/port of the peer. So now query the IWPM
to get the actual address/port of the peer.
Also setup the passive side endpoint to correctly display the actual
and mapped addresses for the new connection.
Signed-off-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/cxgb4/cm.c | 54 +++++++++++++++++++++++++++++++---
drivers/infiniband/hw/cxgb4/device.c | 1 +
2 files changed, 51 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index c2fb71c..f6c7b32 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -580,6 +580,22 @@ static void c4iw_record_pm_msg(struct c4iw_ep *ep,
sizeof(ep->com.mapped_remote_addr));
}
+static int get_remote_addr(struct c4iw_ep *ep)
+{
+ int ret;
+
+ print_addr(&ep->com, __func__, "get_remote_addr");
+
+ ret = iwpm_get_remote_info(&ep->com.mapped_local_addr,
+ &ep->com.mapped_remote_addr,
+ &ep->com.remote_addr, RDMA_NL_C4IW);
+ if (ret)
+ pr_info(MOD "Unable to find remote peer addr info - err %d\n",
+ ret);
+
+ return ret;
+}
+
static void best_mtu(const unsigned short *mtus, unsigned short mtu,
unsigned int *idx, int use_ts)
{
@@ -2343,27 +2359,57 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
state_set(&child_ep->com, CONNECTING);
child_ep->com.dev = dev;
child_ep->com.cm_id = NULL;
+
+ /*
+ * The mapped_local and mapped_remote addresses get setup with
+ * the actual 4-tuple. The local address will be based on the
+ * actual local address of the connection, but on the port number
+ * of the parent listening endpoint. The remote address is
+ * setup based on a query to the IWPM since we don't know what it
+ * originally was before mapping. If no mapping was done, then
+ * mapped_remote == remote, and mapped_local == local.
+ */
if (iptype == 4) {
struct sockaddr_in *sin = (struct sockaddr_in *)
- &child_ep->com.local_addr;
+ &child_ep->com.mapped_local_addr;
+
sin->sin_family = PF_INET;
sin->sin_port = local_port;
sin->sin_addr.s_addr = *(__be32 *)local_ip;
- sin = (struct sockaddr_in *)&child_ep->com.remote_addr;
+
+ sin = (struct sockaddr_in *)&child_ep->com.local_addr;
+ sin->sin_family = PF_INET;
+ sin->sin_port = ((struct sockaddr_in *)
+ &parent_ep->com.local_addr)->sin_port;
+ sin->sin_addr.s_addr = *(__be32 *)local_ip;
+
+ sin = (struct sockaddr_in *)&child_ep->com.mapped_remote_addr;
sin->sin_family = PF_INET;
sin->sin_port = peer_port;
sin->sin_addr.s_addr = *(__be32 *)peer_ip;
} else {
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)
- &child_ep->com.local_addr;
+ &child_ep->com.mapped_local_addr;
+
sin6->sin6_family = PF_INET6;
sin6->sin6_port = local_port;
memcpy(sin6->sin6_addr.s6_addr, local_ip, 16);
- sin6 = (struct sockaddr_in6 *)&child_ep->com.remote_addr;
+
+ sin6 = (struct sockaddr_in6 *)&child_ep->com.local_addr;
+ sin6->sin6_family = PF_INET6;
+ sin6->sin6_port = ((struct sockaddr_in6 *)
+ &parent_ep->com.local_addr)->sin6_port;
+ memcpy(sin6->sin6_addr.s6_addr, local_ip, 16);
+
+ sin6 = (struct sockaddr_in6 *)&child_ep->com.mapped_remote_addr;
sin6->sin6_family = PF_INET6;
sin6->sin6_port = peer_port;
memcpy(sin6->sin6_addr.s6_addr, peer_ip, 16);
}
+ memcpy(&child_ep->com.remote_addr, &child_ep->com.mapped_remote_addr,
+ sizeof(child_ep->com.remote_addr));
+ get_remote_addr(child_ep);
+
c4iw_get_ep(&parent_ep->com);
child_ep->parent_ep = parent_ep;
child_ep->tos = GET_POPEN_TOS(ntohl(req->tos_stid));
diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index 72f1f05..4c0f238 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -93,6 +93,7 @@ static struct ibnl_client_cbs c4iw_nl_cb_table[] = {
[RDMA_NL_IWPM_ADD_MAPPING] = {.dump = iwpm_add_mapping_cb},
[RDMA_NL_IWPM_QUERY_MAPPING] = {.dump = iwpm_add_and_query_mapping_cb},
[RDMA_NL_IWPM_HANDLE_ERR] = {.dump = iwpm_mapping_error_cb},
+ [RDMA_NL_IWPM_REMOTE_INFO] = {.dump = iwpm_remote_info_cb},
[RDMA_NL_IWPM_MAPINFO] = {.dump = iwpm_mapping_info_cb},
[RDMA_NL_IWPM_MAPINFO_NUM] = {.dump = iwpm_ack_mapping_info_cb}
};
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