RDMA/cma: Add IPv6 support for iWARP

Modify the type of local_addr and remote_addr fields in struct
iw_cm_id from struct sockaddr_in to struct sockaddr_storage to hold
IPv6 and IPv4 addresses uniformly.

Change the references of local_addr and remote_addr in cxgb4, cxgb3,
nes and amso drivers to match this.  However to be able to actully run
traffic over IPv6, low-level drivers have to add code to support this.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>

[ Fix unused variable warnings when INFINIBAND_NES_DEBUG not set.
  - Roland ]

Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h
index 1a046b1595cc..1017e0bdf8ba 100644
--- a/include/rdma/iw_cm.h
+++ b/include/rdma/iw_cm.h
@@ -49,8 +49,8 @@ enum iw_cm_event_type {
 struct iw_cm_event {
         enum iw_cm_event_type event;
         int                      status;
-        struct sockaddr_in local_addr;
-        struct sockaddr_in remote_addr;
+        struct sockaddr_storage local_addr;
+        struct sockaddr_storage remote_addr;
         void *private_data;
         void *provider_data;
         u8 private_data_len;
@@ -83,8 +83,8 @@ struct iw_cm_id {
         iw_cm_handler           cm_handler;      /* client callback function */
         void                    *context;        /* client cb context */
         struct ib_device        *device;
-        struct sockaddr_in      local_addr;
-        struct sockaddr_in      remote_addr;
+        struct sockaddr_storage local_addr;
+        struct sockaddr_storage remote_addr;
         void                    *provider_data;  /* provider private data */
         iw_event_handler        event_handler;   /* cb for provider
                                                     events */