[PATCH for-next v2 4/4] RDMA/erdma: Return QP state in erdma_query_qp

[Cheng Xu <chengyou@linux.alibaba.com>]

Fix qp_state and cur_qp_state to return correct values in
struct ib_qp_attr.

Fixes: 155055771704 ("RDMA/erdma: Add verbs implementation")
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
---
 drivers/infiniband/hw/erdma/erdma_verbs.c | 25 ++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.c b/drivers/infiniband/hw/erdma/erdma_verbs.c
index 48b08a15e6a8..de11f0f1adb1 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.c
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.c
@@ -1544,11 +1544,31 @@ int erdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
 	return ret;
 }
 
+static inline enum ib_qp_state query_qp_state(struct erdma_qp *qp)
+{
+	switch (qp->attrs.state) {
+	case ERDMA_QP_STATE_IDLE:
+		return IB_QPS_INIT;
+	case ERDMA_QP_STATE_RTR:
+		return IB_QPS_RTR;
+	case ERDMA_QP_STATE_RTS:
+		return IB_QPS_RTS;
+	case ERDMA_QP_STATE_CLOSING:
+		return IB_QPS_ERR;
+	case ERDMA_QP_STATE_TERMINATE:
+		return IB_QPS_ERR;
+	case ERDMA_QP_STATE_ERROR:
+		return IB_QPS_ERR;
+	default:
+		return IB_QPS_ERR;
+	}
+}
+
 int erdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
 		   int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr)
 {
-	struct erdma_qp *qp;
 	struct erdma_dev *dev;
+	struct erdma_qp *qp;
 
 	if (ibqp && qp_attr && qp_init_attr) {
 		qp = to_eqp(ibqp);
@@ -1575,6 +1595,9 @@ int erdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
 
 	qp_init_attr->cap = qp_attr->cap;
 
+	qp_attr->qp_state = query_qp_state(qp);
+	qp_attr->cur_qp_state = query_qp_state(qp);
+
 	return 0;
 }
 
-- 
2.31.1