Commit 1f024992 authored by Dennis Dalessandro's avatar Dennis Dalessandro Committed by Doug Ledford
Browse files

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: default avatarHarish Chegondi <harish.chegondi@intel.com>
Signed-off-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent f1badc71

drivers/infiniband/sw/rdmavt/vt.c

+14 −3
Original line number Diff line number Diff line
@@ -210,17 +210,28 @@ static int rvt_query_pkey(struct ib_device *ibdev, u8 port_num, u16 index, 
 * 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 {

include/rdma/rdma_vt.h

+2 −0
Original line number Diff line number Diff line
@@ -248,6 +248,8 @@ struct rvt_driver_provided { 
	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 */

CRA Git | Maintained and supported by SUSTech CRA and CCSE