[net PATCH v3] octeontx2-af: Send Link events one by one

[Subbaraya Sundeep <sbhatta@marvell.com>]

Send link events one after another otherwise new message
is overwriting the message which is being processed by PF.

Fixes: a88e0f936ba9 ("octeontx2: Detect the mbox up or down message via register")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
---
v3:
 Modifid to wait for response at other places mcs_notify_pfvf
 and rvu_rep_up_notify as suggested by Simon Hormon and Michal Swiatkowski.
v2:
 No changes. Added subject prefix net.

 drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c | 2 ++
 drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c    | 2 ++
 drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c    | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c b/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c
index 655dd47..0277d22 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs_rvu_if.c
@@ -143,6 +143,8 @@ static int mcs_notify_pfvf(struct mcs_intr_event *event, struct rvu *rvu)
 
 	otx2_mbox_msg_send_up(&rvu->afpf_wq_info.mbox_up, pf);
 
+	otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pf);
+
 	mutex_unlock(&rvu->mbox_lock);
 
 	return 0;
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
index 992fa0b..ebb56eb 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c
@@ -272,6 +272,8 @@ static void cgx_notify_pfs(struct cgx_link_event *event, struct rvu *rvu)
 
 		otx2_mbox_msg_send_up(&rvu->afpf_wq_info.mbox_up, pfid);
 
+		otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pfid);
+
 		mutex_unlock(&rvu->mbox_lock);
 	} while (pfmap);
 }
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c
index 052ae59..32953cc 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c
@@ -60,6 +60,8 @@ static int rvu_rep_up_notify(struct rvu *rvu, struct rep_event *event)
 
 	otx2_mbox_msg_send_up(&rvu->afpf_wq_info.mbox_up, pf);
 
+	otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pf);
+
 	mutex_unlock(&rvu->mbox_lock);
 	return 0;
 }
-- 
2.7.4