IB/rdmavt: Add query gid support.
Addin query gid support. Rdmavt still relies on the driver to maintain
the gid table. Rdmavt simply calls into the driver to retrive the guid
for a particular port.
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c
index 9f9cb9a..e017117 100644
--- a/drivers/infiniband/sw/rdmavt/vt.c
+++ b/drivers/infiniband/sw/rdmavt/vt.c
@@ -210,17 +210,28 @@
* Returns 0 on success
*/
static int rvt_query_gid(struct ib_device *ibdev, u8 port_num,
- int index, union ib_gid *gid)
+ int guid_index, union ib_gid *gid)
{
+ struct rvt_dev_info *rdi;
+ struct rvt_ibport *rvp;
+ int port_index;
+
/*
* Driver is responsible for updating the guid table. Which will be used
* to craft the return value. This will work similar to how query_pkey()
* is being done.
*/
- if (ibport_num_to_idx(ibdev, port_num) < 0)
+ port_index = ibport_num_to_idx(ibdev, port_num);
+ if (port_index < 0)
return -EINVAL;
- return -EOPNOTSUPP;
+ rdi = ib_to_rvt(ibdev);
+ rvp = rdi->ports[port_index];
+
+ gid->global.subnet_prefix = rvp->gid_prefix;
+
+ return rdi->driver_f.get_guid_be(rdi, rvp, guid_index,
+ &gid->global.interface_id);
}
struct rvt_ucontext {
diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h
index 5d1c694..dabf4d5 100644
--- a/include/rdma/rdma_vt.h
+++ b/include/rdma/rdma_vt.h
@@ -248,6 +248,8 @@
u32 (*mtu_from_qp)(struct rvt_dev_info *rdi, struct rvt_qp *qp,
u32 pmtu);
int (*mtu_to_path_mtu)(u32 mtu);
+ int (*get_guid_be)(struct rvt_dev_info *rdi, struct rvt_ibport *rvp,
+ int guid_index, __be64 *guid);
/*--------------------*/
/* Optional functions */