Commit e85ec33d authored by Ira Weiny's avatar Ira Weiny Committed by Doug Ledford

IB/rdmavt: add modify queue pair driver helpers

Low level drivers need to be able to check incoming attributes as well as be
able to adjust their private data on queue pair modification.  Add 2 driver
callbacks, check_modify_qp and modify_qp, to facilitate this.
Signed-off-by: default avatarIra Weiny <ira.weiny@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 2b047ea7
......@@ -970,6 +970,10 @@ int rvt_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
attr_mask, link))
goto inval;
if (rdi->driver_f.check_modify_qp &&
rdi->driver_f.check_modify_qp(qp, attr, attr_mask, udata))
goto inval;
if (attr_mask & IB_QP_AV) {
if (attr->ah_attr.dlid >= be16_to_cpu(IB_MULTICAST_LID_BASE))
goto inval;
......@@ -1166,6 +1170,9 @@ int rvt_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC)
qp->s_max_rd_atomic = attr->max_rd_atomic;
if (rdi->driver_f.modify_qp)
rdi->driver_f.modify_qp(qp, attr, attr_mask, udata);
spin_unlock(&qp->s_lock);
spin_unlock_irq(&qp->r_lock);
......
......@@ -256,6 +256,13 @@ struct rvt_driver_provided {
struct rvt_ah *);
int (*alloc_qpn)(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
enum ib_qp_type type, u8 port, gfp_t gfp);
/**
* Return 0 if modification is valid, -errno otherwise
*/
int (*check_modify_qp)(struct rvt_qp *qp, struct ib_qp_attr *attr,
int attr_mask, struct ib_udata *udata);
void (*modify_qp)(struct rvt_qp *qp, struct ib_qp_attr *attr,
int attr_mask, struct ib_udata *udata);
};
struct rvt_dev_info {
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment