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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>
This commit is contained in:
Dennis Dalessandro 2016-02-03 14:15:11 -08:00 committed by Doug Ledford
parent f1badc7163
commit 1f024992ef
2 changed files with 16 additions and 3 deletions
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17
drivers/infiniband/sw/rdmavt/vt.c
View File

@ -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 {

2
include/rdma/rdma_vt.h
View File

@ -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 */