[PATCH 5/8] IB/rdmavt: Add destroy qp verb
From: Dennis Dalessandro <hidden>
Date: 2016-01-09 15:00:25
Subsystem:
infiniband subsystem, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
This patch adds in support the qp destroy verb call. Reviewed-by: Ira Weiny <redacted> Signed-off-by: Dennis Dalessandro <redacted> --- drivers/infiniband/sw/rdmavt/qp.c | 29 +++++++++++++++++++++++------ 1 files changed, 23 insertions(+), 6 deletions(-)
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index b8c7c49..6aa7d6f 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c@@ -1171,13 +1171,30 @@ inval: */ int rvt_destroy_qp(struct ib_qp *ibqp) { - /* - * VT-DRIVER-API: qp_flush() - * Driver provies a mechanism to flush and wait for that flush to - * finish. - */ + struct rvt_qp *qp = ibqp_to_rvtqp(ibqp); + struct rvt_dev_info *rdi = ib_to_rvt(ibqp->device); - return -EOPNOTSUPP; + spin_lock_irq(&qp->r_lock); + spin_lock(&qp->s_lock); + rvt_reset_qp(rdi, qp, ibqp->qp_type); + spin_unlock(&qp->s_lock); + spin_unlock_irq(&qp->r_lock); + + /* qpn is now available for use again */ + rvt_free_qpn(&rdi->qp_dev->qpn_table, qp->ibqp.qp_num); + + spin_lock(&rdi->n_qps_lock); + rdi->n_qps_allocated--; + spin_unlock(&rdi->n_qps_lock); + + if (qp->ip) + kref_put(&qp->ip->ref, rvt_release_mmap_info); + else + vfree(qp->r_rq.wq); + vfree(qp->s_wq); + rdi->driver_f.qp_priv_free(rdi, qp); + kfree(qp); + return 0; } int rvt_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, --
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