Patch "RDMA/erdma: Return QP state in erdma_query_qp" has been added to the 6.1-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    RDMA/erdma: Return QP state in erdma_query_qp

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     rdma-erdma-return-qp-state-in-erdma_query_qp.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 4b1cd21ca02688f7cf3329fb41075b97f9432cd4
Author: Cheng Xu <chengyou@xxxxxxxxxxxxxxxxx>
Date:   Mon Sep 2 19:29:20 2024 +0800

    RDMA/erdma: Return QP state in erdma_query_qp
    
    [ Upstream commit e77127ff6416b17e0b3e630ac46ee5c9a6570f57 ]
    
    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@xxxxxxxxxxxxxxxxx>
    Link: https://patch.msgid.link/20240902112920.58749-4-chengyou@xxxxxxxxxxxxxxxxx
    Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.c b/drivers/infiniband/hw/erdma/erdma_verbs.c
index 654d8513873ec..2edf0d882c6a2 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.c
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.c
@@ -1292,11 +1292,31 @@ int erdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
 	return ret;
 }
 
+static 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);
@@ -1323,6 +1343,9 @@ 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;
 }